Microscope apparatus
US006989928B2
(12) United States Patent
(10) Patent N0.:
(45) Date of Patent:
Kawanabe et al.
(54)
MICROSCOPE APPARATUS
(56)
U.S. PATENT DOCUMENTS
Shinya Sakamoto, Hachioji (JP);
5,315,080 A *
5,517,353 A *
Mitsuhiko Saito, Hachioji (JP)
2003/0179445 A1 *
(73) Assignee: Olympus Optical Co., Ltd., Tokyo (JP)
Notice:
Jan. 24, 2006
References Cited
(75) Inventors: Hideyuki Kawanabe, Hachioji (JP);
(*)
US 6,989,928 B2
5/1994 Kaczynski et a1. ......... .. 200/47
5/1996 Ikoh et al. .......... ..
359/388
9/2003 Maenle et al. ............ .. 359/368
FOREIGN PATENT DOCUMENTS
Subject to any disclaimer, the term of this
patent is extended or adjusted under 35
JP
USC 154(b) by 42 days.
* cited by examiner
2000-184116 A
6/2000
(21) Appl. No.: 10/664,640
Primary Examiner—Thong Nguyen
(22) Filed:
Assistant Examiner—Arnel C. Lavarias
Sep. 17, 2003
US 2004/0090670 A1
May 13, 2004
(57)
Foreign Application Priority Data
(30)
Sep. 19, 2002
(51)
(74)Att0rney, Agent, or Firm—Frishauf, HoltZ, Goodman &
Chick, PC.
Prior Publication Data
(65)
(JP)
ABSTRACT
A microscope apparatus has a driver mounted on a main
body of the microscope apparatus, a sensor Which detects a
........................... .. 2002-273955
stopped state of the driver, a poWer supply Which supplies
Int. Cl.
G02B 21/26
(2006.01)
(52)
US. Cl.
(58)
Field of Classi?cation Search .............. ..
poWer to the sensor, a drive controller Which controls driving
of the driver, and a controller Which controls the poWer
supply to the sensor from the poWer supply in accordance
With a drive control signal sent from the drive controller to
359/392; 359/384; 359/381;
359/380; 359/368
.................... ..
359/368,
the driver.
359/388, 381, 384, 392, 393, 380, 394, 391;
250/2013
See application ?le for complete search history.
12 Claims, 3 Drawing Sheets
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U.S. Patent
Jan. 24, 2006
Sheet 1 of3
US 6,989,928 B2
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U.S. Patent
Jan. 24, 2006
Sheet 2 of3
US 6,989,928 B2
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U.S. Patent
Jan. 24, 2006
US 6,989,928 B2
Sheet 3 0f 3
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US 6,989,928 B2
1
2
MICROSCOPE APPARATUS
trols the poWer supply to the sensor from the poWer supply
in accordance With a drive control signal sent from the drive
controller to the driver.
CROSS-REFERENCE TO RELATED
APPLICATIONS
A microscope apparatus according to the second aspect of
the invention is characteriZed by comprising: a ?rst driver
Which is mounted on a main body of the microscope
This application is based upon and claims the bene?t of
priority from the prior Japanese Patent Application No.
apparatus and Which is driven by a manual operation or an
electrical operation; a ?rst sensor Which detects a stopped
state of the ?rst driver; a second driver Which is mounted on
2002-273955, ?led Sep. 19, 2002, the entire contents of
Which are incorporated herein by reference.
10
BACKGROUND OF THE INVENTION
the main body of the microscope apparatus and Which is
Recent microscope apparatuses frequently used include
electronic microscopes of the type that electrically controls
driven only by an electrical operation; a second sensor
Which detects a stopped state of the second driver; a poWer
supply Which supplies poWer to the ?rst sensor and the
second sensor; a drive controller Which controls the driving
of the second driver; and a controller Which controls the
poWer supply to the second sensor from the poWer supply in
accordance With a drive control signal sent from the drive
controller to the second driver.
various drivers that drive, for example, a revolver used to
change an objective lens and a stage used to mount a sample
A microscope apparatus according to the third aspect of
the invention is characteriZed by comprising: a driver
1. Field of the Invention
The invention relates to a microscope apparatus including
a sensor Which detects a state of a driver such as a stage.
15
2. Description of the Related Art
as an observation object.
mounted on a main body of the microscope apparatus; a
sensor Which detects a stopped state of the driver; a poWer
To control the operation of such a driver, it is necessary
to detect the current state of the driver by using a sensor
supply Which supplies poWer to the sensor; an imager Which
provided as a sensor section such as a photo-interrupter or a
Hall integrated circuit (IC).
images an observation image acquired by the main body of
25
Microscope apparatuses using sensors for detecting the
detects an eXposure state of the imager; and a controller
Which stops the poWer supply to the sensor depending on the
exposure state of the imager, Which is detected by the state
detection section.
state of drivers include those of the type described hereun
der.
Amain body of the microscope apparatus has tWo sensors,
namely, an upper limit sensor and a loWer limit sensor,
A microscope apparatus according to the fourth aspect of
the invention is characteriZed by comprising: a plurality of
Which are disposed at a predetermined spacing along a
movement direction of a stage. In addition, the main body
has a light shield provided in the stage. Upon movement of
the stage, the light shield enters an optical aXis of a photo
interrupter and thereby blocks the optical path.
35
When a user operates an operation sWitch of the main
body of the microscope apparatus to drive the stage upWard,
the light shield enters the optical aXis of the photo-inter
rupter of the upper limit sensor to thereby block the optical
path. Thereby, the upper limit sensor becomes the ON state
and detects that the stage has been driven up to the upper
40
limit. Conversely, When the stage is driven doWnWard, the
light shield enters the optical aXis of the photo-interrupter of
the loWer limit sensor to thereby block the optical path.
Thereby, the loWer limit sensor becomes the ON state and
detects that the stage has been driven doWn to the loWer
limit.
the microscope apparatus; a state detection section Which
drivers mounted on a main body of the microscope appara
tus; a plurality of sensors to individually detect stopped
states of the plurality of drivers; a poWer supply Which
supplies poWer to the plurality of sensors; and a selecting
section Which selects at least one of the plurality of sensor
to be supplied With poWer from the poWer supply.
Advantages of the invention Will be set forth in the
description Which folloWs, and in part Will be obvious from
the description, or may be learned by practice of the inven
tion. Advantages of the invention may be realiZed and
obtained by means of the instrumentalities and combinations
particularly pointed out hereinafter.
45
BRIEF DESCRIPTION OF THE SEVERAL
VIEWS OF THE DRAWING
In the con?guration described above, poWer is continually
The accompanying draWings, Which are incorporated in
supplied to the upper limit sensor and the loWer limit sensor,
and constitute a part of the speci?cation, illustrate embodi
regardless of the detection of the light shield according to the
driving of the stage. Therefore, even When the state Where
ments of the invention, and together With the general
description given above and the detailed description of the
embodiments given beloW, serve to eXplain the principles of
the stage is not driven at all, poWer continually ?oWs to the
upper limit sensor and the loWer limit sensor.
To overcome the problem, as disclosed in Jpn. Pat. Appln.
KOKAI Publication No. 2000-184116, a scheme has been
55
proposed in Which an oscillatory circuit is used to supply
embodiment according to the invention;
poWer to sensors at predetermined intervals and thereby to
FIG. 2 is a schematic vieW of the con?guration of a
reduce poWer consumption.
second embodiment according to the invention;
FIG. 3 is a schematic vieW of the con?guration of a third
BRIEF SUMMARY OF THE INVENTION
embodiment according to the invention;
FIG. 4 is a schematic vieW of the con?guration of a fourth
Amicroscope apparatus according to the ?rst aspect of the
invention is characteriZed by comprising: a driver mounted
embodiment according to the invention;
FIG. 5 is a schematic vieW of the con?guration of a
on a main body of the microscope apparatus; a sensor Which
detects a stopped state of the driver; a poWer supply Which
supplies poWer to the sensor; a drive controller Which
controls driving of the driver; and a controller Which con
the invention.
FIG. 1 is a schematic vieW of the con?guration of a ?rst
65
control system used in the fourth embodiment; and
FIG. 6 is a schematic vieW of the con?guration of a ?fth
embodiment according to the invention.
US 6,989,928 B2
3
4
DETAILED DESCRIPTION OF THE
INVENTION
controls the poWer supply to the upper limit sensor 12 and
the loWer limit sensor 13. Upon termination of a sWitch
operation in the stage drive controller 14 and the movement
of the stage 2, the sensor poWer supply controller 15 controls
the poWer supply to the upper limit sensor 12 and the loWer
Embodiments of the invention Will be described herein
beloW With reference to the accompanying drawings.
FIG. 1 is a schematic vieW of the con?guration of a
microscope apparatus to Which a ?rst embodiment of the
limit sensor 13 to be stopped in accordance With a command
received from the stage drive controller 14. Thus, the sensor
poWer supply controller 15 controls the poWer supply to the
invention is applied.
Referring to FIG. 1, a microscope main body 1 has an
electrically-driven stage 2 that can be vertically driven, as a
upper limit sensor 12 and the loWer limit sensor 13 only
driver. A sample 6 to be microscopically observed is placed
14.
on the stage 2.
The sensor poWer supply controller 15 is connected to a
connector terminal 16. The connector terminal 16 outputs
A revolver 5 is provided above the stage 2. The revolver
5 holds a plurality of objective lenses 3, and selectively
change the objective lens 3 to be positioned on the optical
during operation of the sWitch of the stage drive controller
15
signals individually indicative of the state of the poWer
supply from the sensor poWer supply controller 15 to the
upper limit sensor 12 and the loWer limit sensor 13.
The connector terminal 16 can be connected to an eXternal
axis.
A light source 7 is situated above the microscope main
body 1. An aperture diaphragm 8, a vieW diaphragm 9, and
device (not shoWn) that enables monitoring of the ON/OFF
a corner cube 10 are disposed along an optical path of
illumination light emitted from the light source 7.
Illumination light emitted from the light source 7 is
state of poWer supply, Which is controlled by the sensor
poWer supply controller 15. The state of the poWer supply
from the sensor poWer supply controller 15 to the upper limit
irradiated onto the sample 6 through the aperture diaphragm
8, the vieW diaphragm 9, and the corner cube 10. Light
sensor 12 and the loWer limit sensor 13 can be monitored for
each of the upper limit sensor 12 and the loWer limit sensor
re?ected from the sample 6 is guided to be incident on an
ocular lens 4 through the objective lens 3 and the corner
cube 10. Thereby, an observer can observe the sample 6.
The stage 2 is connected to a stage drive controller 14. In
response to an external operation, the stage drive controller
14 sends a control signal to a stage drive motor (not shoWn),
13.
25
In the con?guration described above, upon operation of
the sWitch of the stage drive controller 14, the sensor poWer
supply controller 15 is activated to commence the poWer
supply to the upper limit sensor 12 and the loWer limit sensor
13. In response, the upper limit sensor 12 and the loWer limit
Whereby the stage 2 is electrically driven in the vertical
sensor 13 are individually activated. In addition, the sensor
direction.
In the microscope main body 1, an upper limit sensor 12
and a loWer limit sensor 13, individually formed of photo
interrupters, are disposed at a predetermined spacing ther
ebetWeen along the movement direction of the stage 2.
poWer supply controller 15 sends to the connector terminal
16 signals indicative of the states of power supply to the
upper limit sensor 12 and the loWer limit sensor 13.
35
A light shield 11 is provided to the stage 2. The light
shield 11 vertically moves together With the stage 2. Upon
entering the optical aXis of the photo-interrupter, the light
shield 11 blocks the optical path.
The stage drive controller 14 has a sWitch (not shoWn) that
stage drive controller 14, the stage drive motor (not shoWn)
40
enables a user to arbitrarily select the upWard/doWnWard
drive direction of the stage 2 by the stage drive controller 14.
Upon a user operation of the sWitch, a signal directing the
upWard/doWnWard drive direction of the stage 2 to the stage
drive motor (not shoWn) is output.
45
Suppose that, in response to a sWitch operation as
described above, the stage 2 is driven upWardly, and the light
shield 11 reaches the position of the upper limit sensor 12.
In this case, the stage drive controller 14 blocks the optical
path of the photo-interrupter, and the upper limit sensor 12
sWitches to the ON state. Then, the upper limit sensor 12
detects that the sample 6 over the stage 2 has been driven up
to a design upper limit at Which the sample 6 does not collide
With the objective lens 3. A noti?cation of the detection
result is then noti?ed to the stage drive controller 14. Upon
receipt of the noti?cation, the stage drive controller 14
controls the stage 2 not to further move upWard.
Also When an operation of the sWitch is performed to
In this state, after a short period of time elapsed from the
instance of the sWitch operation, the stage drive controller 14
outputs a control signal to the stage drive motor (not shoWn).
Thereby, the stage 2 is driven upWard or doWnWard.
Upon termination of the operation of the sWitch of the
is deactivated, and the movement of the stage 2 is stopped.
Subsequently, after elapse of a short period of time, the stage
drive controller 14 sends a signal indicative of the above
described instance also to the sensor poWer supply controller
15. In response to the signal, the sensor poWer supply
controller 15 controls the poWer supply to the upper limit
sensor 12 and the loWer limit sensor 13 to be stopped. In
addition, the sensor poWer supply controller 15 sends a
signal indicative of poWer off also to the connector terminal
16.
As described above, the microscope apparatus is designed
to permit the poWer supply to the upper limit sensor 12 and
the loWer limit sensor 13, Which detect the state of the stage
2, only during the movement of the stage 2. This enables
prevention of unnecessary poWer supply to the upper limit
55
sensor 12 and the loWer limit sensor 13. Consequently,
poWer consumption can be reduced, compared to the con
ventional case in Which poWer is continually supplied to the
sensors even While the stage is not driven at all.
Further, signals indicative of states of poWer supply to the
move the stage 2 doWnWard, operations and control similar
to those described above are performed. That is, When the
upper limit sensor 12 and the loWer limit sensor 13 can be
loWer limit sensor 13 detects that the stage 2 has been driven
doWn to a design loWer limit, a noti?cation of the detection
supply to the individual sensors can be monitored from the
result is noti?ed to the stage drive controller 14. Having
received the noti?cation, the stage drive controller 14 con
outside.
According to the embodiment described above, When the
transmitted to the outside. Accordingly, the states of poWer
65 movement of the stage 2 has been stopped by the stage drive
trols the stage 2 not to further move doWnWard.
The microscope main body 1 further has a sensor poWer
controller 14, the sensor poWer supply controller 15 controls
supply controller 15. The sensor poWer supply controller 15
the poWer supply to the upper limit sensor 12 and the loWer
US 6,989,928 B2
5
6
limit sensor 13 to be stopped in response to the command
The sensor power supply controller 203 is connected to a
connector terminal 207. The connector terminal 207 outputs
issued by the stage drive controller 14. Alternatively, the
embodiment may be arranged such that when the stage drive
signals individually indicative of the state of the power
supply from the sensor power supply controller 203 to the
controller 14 controls the stage 2 to be driven, the sensor
power supply controller 15 supplies power to the upper limit
sensors 206 and 205.
The connector terminal 207 can be connected to an
sensor 12 and the lower limit sensor 13 in response to the
command issued by the stage drive controller 14.
A second embodiment of the present invention will be
described hereinbelow.
FIG. 2 is a schematic view of the con?guration of the
second embodiment, wherein the same reference numerals
external device (not shown) that enables monitoring of the
ON/OFF state of power supply from the sensor power
supply controller 203 to the sensors 206 and 205.
10
In the con?guration described above, upon receipt of a
command for driving the stage 204, the stage drive control
ler 202 sends a driving signal to the stage drive motor (not
shown), and the driving of the stage 204 is then started.
Concurrently, the sensor power supply controller 203
15
receives a signal indicative of the stage drive commence
ment from the stage drive controller 202. In response, the
sensor power supply controller 203 controls power be sup
plied to the sensor 206, and then outputs to the connector
terminal 207 a signal indicative of the state where power is
being supplied to the sensor 206.
as those of FIG. 1 are used for the same portions.
The second embodiment has a feature in having a driver
controllable by a manual or electrical operation and a driver
controllable only by electrical operation.
The driver controllable only by electrical operation cor
responds to the stage 2 described in the ?rst embodiment.
Since the con?guration relevant to the stage 2 is the same as
that in the ?rst embodiment, illustration thereof is omitted
from FIG. 2. The driver controllable by a manual or elec
trical operation corresponds to, for eXample, an electrically
The sensor power supply controller 203 always keeps
supplying power to the sensor 205, regardless of the drive
state of the revolver 209, and outputs to the connector
terminal 207 a signal indicative that power is being supplied
driven revolver.
Referring to FIG. 2, the microscope main body 1 has an
electrically-driven revolver 209 to which at most ?ve objec
tive lenses 3 can be ?tted. The revolver 209 is connected to 25 to the sensor 205.
a revolver drive controller 201. The revolver drive controller
Thereafter, upon receipt of a command for stopping the
movement of the stage 204, the stage drive controller 202
sends a stopping signal to the stage drive motor (not shown),
201 has a switch (not shown) that arbitrarily selects a CW
(clockwise) rotational direction of the revolver 209 or a
a switch operation of the revolver drive controller 201, a
and the movement of the stage 204 is then stopped. Con
currently, the sensor power supply controller 203 receives a
signal directing the rotational driving of the revolver 209 is
output to a revolver drive motor (not shown). The revolver
signal indicative of the stage-drive stopping signal from the
stage drive controller 202, and, in response, stops the power
209 can be rotationally driven not only by an electrical
operation but also by a manual operation in such a manner
supply to the sensor 206. Then, the sensor power supply
controller 203 outputs also to the connector terminal 207 a
CCW (counterclockwise) rotational direction thereof. Upon
that, while holding the objective lenses 3 by hand, the
35
signal indicative that the power supply has been stopped. On
overall revolver 209 is rotated.
Five small openings 208 are provided above the revolver
the other hand, the sensor power supply controller 203
209, corresponding to the positions of the objective lenses 3.
of the state where the power supply to the sensor 206 has
always keeps supplying power to the sensor 205, regardless
been stopped following the stop of the driving of the stage
Additionally provided there are sensors 205 each formed of
a photo-re?ector, corresponding to the small openings 208.
40
204. Then, the sensor power supply controller 203 outputs
The sensors 205 are each disposed to match the position of
also to the connector terminal 207 a signal indicative that
the small opening 208 when the objective lens 3 matches the
power is being continually supplied to the sensor 205.
optical aXis. In the state where the sensor 205 matches the
position of the small opening 208, the sensor 205 turns ON
and sends to the revolver drive controller 201 a signal
Thus, the microscope apparatus according to the second
embodiment has both the driver (revolver 209) controllable
by a manual or electrical operation and the driver (stage 204)
controllable only by an electrical operation. Also in this
case, in association with the driving of the stage 204, power
45
notifying that the objective lens 3 has matched the position
of the optical aXis. Upon receipt of the signal from the sensor
205, the revolver drive controller 201 sends to the revolver
is supplied only to the sensor 206 corresponding to the stage
drive motor (not shown) a signal for deactivating the rota
204 controllable only by electrical operation. Accordingly,
tion of the revolver 209 in the noti?ed state.
unnecessary power consumption for the sensor 206 in the
stopped state of the stage 204 can be reduced, and power
consumption in the overall apparatus can be reduced.
In the second embodiment, up to ?ve objective lenses 3
can be attached to the electrically driven revolver 209.
However, even with a revolver to which siX objective lenses
3 can be attached, similar effects can be eXpected by
The stage 204 controllable only by an electrical operation
is driven by a stage drive controller 202 in the vertical
direction. The drive state of the stage 204 is detected by the
sensor 206, and is noti?ed to the stage drive controller 202.
In this case, the operations of the stage drive controller 202
55
and the sensor 206 are the same as those in the ?rst
providing siX small openings 208. Of course, the invention
embodiment.
In addition, a sensor power supply controller 203 is
may be applied to a revolver on which any other number of
objective lenses 3 can be attached.
A third embodiment of the invention will be described
hereinbelow.
A revolver and a stage of a driver in the third embodiment
provided in the microscope main body 1. The sensor power
supply controller 203 controls the power supply to the
sensors 205 and 206. Upon receipt of a signal for stopping
the movement of the stage 204 from the stage drive con
troller 202, the sensor power supply controller 203 controls
power to the sensor 206 to be stopped. On the other hand,
however, the sensor power supply controller 203 always
keeps supplying power to the sensor 205, regardless of the
drive state of the electrically-driven revolver 209.
are similar to those in the second embodiment, so that
description thereof will be omitted herefrom. In the third
65
embodiment, only portions relative to control systems will
be selected from the microscope apparatus con?guration and
will be described with reference to FIG. 3.
US 6,989,928 B2
7
8
Referring to FIG. 3, a stage drive controller 301 controls
vertical driving of a stage 307, and outputs a signal indica
re?ected light is guided to be incident on the side of the
ocular lens 4 through the objective lens 3 and the corner
tive of the drive state of the stage 307 to a sensor poWer
cube 10. The silver ?lm camera 410 includes a shutter 411,
an imaging lens 412, and a ?lm 413.
supply controller 303. A revolver drive controller 302 con
trols the rotation of a revolver 306, and outputs a signal
indicative of the drive state of the revolver 306 to the sensor
In this case, illumination light emitted from the light
source 7 is irradiated onto the sample 6 through the aperture
diaphragm 8, the vieW diaphragm 9, and the corner cube 10.
poWer supply controller 303.
The sensor poWer supply controller 303 controls the
poWer supply to sensors 304 and 305, and sends to a
connector terminal 308 signals indicative of the states of
poWer supply to the sensors 304 and 305. The connector
terminal 308 can be connected to an eXternal device (not
The light re?ected from the sample 6 travels through the
objective lens 3, passes through the corner cube 10 as guided
10
shoWn) that enables monitoring of the ON/OFF state of
poWer supply from the sensor poWer supply controller 303
to the sensors 305 and 304.
15
The sensor 304 is responsible for detecting the state of the
revolver 306, and the sensor 305 is responsible for detecting
the state of the stage 307.
Referring to FIG. 5, portions relevant to control systems
Will be selected from the microscope apparatus con?gura
tion and Will be described. In the fourth embodiment, only
The sensor poWer supply controller 303 is connected to a
sWitch 309.
a stage is provided as a driver, as in the ?rst embodiment.
The sWitch 309 is formed of an element such as an
In this con?guration, a stage drive controller 401 controls
the vertical driving of a stage 404. A sensor poWer supply
controller 402 controls the poWer supply to a sensor 403, and
ordinary sWitch, is associated With the sensor 304. In addi
tion, the sWitch 309 is responsible for ON/OFF sWitching in
terms of signal transfer to the sensor poWer supply controller
303.
In response to a signal sent from the sWitch 309, the
sensor poWer supply controller 303 changes a method of
poWer supply to the sensor 304.
In the above state, When the sWitch 309 is set to OFF, the
sensor poWer supply controller 303 is enabled to perform
ON/OFF control for the poWer supply to the sensor 304. In
speci?c, power is supplied to the sensor 304 only When a
signal at the time of driving of the revolver 306 is sent to the
sensor poWer supply controller 303 from the revolver drive
controller 302. When the poWer supply to the sensor 304 is
25
to the sensor 403.
A silver ?lm camera 406 has a sWitch (not shoWn) for
opening a shutter 407. Upon depression of the sWitch of the
silver ?lm camera 406, a shutter opening signal is output to
the shutter 407, and the shutter 407 is thereby opened.
35
40
When the sWitch 309 is set to ON, the sensor poWer
poWer to the sensor 304.
45
When a shutter closing signal is sent from the silver ?lm
camera 406 to the shutter 407, the shutter 407 is thereby
closed.
In the closing operation of the shutter 407, after a short
period of time elapsed from the instance of closure of the
shutter 407, a signal is sent from the silver ?lm camera 406
55
Consequently, poWer consumption in the overall apparatus
can be reduced.
A fourth embodiment of the invention Will be described
hereinbeloW.
FIG. 4 is a schematic vieW of the con?guration of the
fourth embodiment, in Which the same reference numerals
denote the same portions in FIG. 1.
The fourth embodiment is characteriZed in that imaging
an optical path of light re?ected from the sample 6. The
has been stopped. Subsequently, after elapse of a short
period of time, When a shutter opening signal is sent from the
silver ?lm camera 406 to the shutter 407, the shutter 407 is
supply to the sensor 304 for the revolver 306 can be changed
and a silver ?lm camera 410 provided as imaging means on
In this state, When the sWitch of the silver ?lm camera 406
is depressed, a signal is sent from the silver ?lm camera 406
to the sensor poWer supply controller 402. In response, the
closed. Then, after elapse of a predetermined period of time,
by a user’s manual operation. This enables appropriate
poWer control to be implemented also for the poWer supply
to the sensor 304 associated With the driver (revolver 306)
means is provided in the microscope main body 1.
The microscope main body 1 includes objective lenses 3
a shutter closing signal is output to the shutter 407, and the
shutter 407 is thereby closed.
to the sensor 403, and outputs to the connector terminal 405
a signal indicating that the poWer supply to the sensor 403
supply controller 303 is enabled to alWays keep supplying
that is controllable by a manual or electrical operation.
Subsequently, after elapse of a predetermined period of time,
sensor poWer supply controller 402 stops the poWer supply
rotatable state by lifting the stopper.
Only When a signal is received at the time of driving of the
stage 307, the sensor poWer supply controller 303 supplies
poWer to the sensor 305 associated With the stage 307,
regardless of the state of the sWitch 309.
As described above, according to the third embodiment,
since the sWitch 309 is provided, the method of poWer
sends to a connector terminal 405 a signal indicative of the
state of poWer supply to the sensor 403. The connector
terminal 405 can be connected to an eXternal device (not
shoWn) that enables monitoring of the ON/OFF state for the
poWer supply from the sensor poWer supply controller 402
stopped, a physical stopper controllable only by the revolver
drive controller 302 is applied to the revolver 306. When the
sWitch is set to OFF, the stopper enters the hole above the
revolver 306 and the revolver 306 cannot be rotated. Upon
receipt of rotation instruction, the revolver becomes in a
thereby, and is then input to the silver ?lm camera 410. At
this time, When the silver ?lm camera 410 is operated to
open the shutter 411, the re?ected light is irradiated onto the
surface of the ?lm 413 through the imaging lens 412 in the
silver ?lm camera 410. In this state, an observation image of
the sample 6 can be captured by eXposing the ?lm 413 to the
re?ected light for a predetermined time.
to the sensor poWer supply controller 402. In response to the
signal, the sensor poWer supply controller 402 commences
the poWer supply to the sensor 403, and concurrently sends
to the connector terminal 405 a signal indicating that poWer
is being supplied to the sensor 403.
The fourth embodiment is designed such that, at the time
of eXposure for capturing an image With the silver ?lm
camera 406, the poWer supply to the sensor 403 is stopped
at the time of optical measurement immediately before the
exposure. As such, even With an optical sensor such as a
65
photo-interrupter/photo-re?ector being used as the sensor
403, since unnecessary light does not enter the inside of the
silver ?lm camera 406, a clear sample image can be cap
tured.
US 6,989,928 B2
10
operation positions and purposes desired by individual user.
Furthermore, poWer consumption in the apparatus can be
A ?fth embodiment of the invention Will be described
hereinbeloW.
Arevolver and a stage of a driver in the ?fth embodiment
are similar to those in the third embodiment, so that descrip
tion thereof Will be omitted herefrom. In the ?fth embodi
ment, portions relative to control systems Will be selected
reduced.
While the invention has been described as above With
reference to the embodiments, the invention is not limited to
the embodiments. In the stage of practicing the invention,
various modi?cations may be made Without departing the
from the microscope apparatus con?guration and Will be
described With reference to FIG. 6.
Referring to FIG. 6, a stage drive controller 501 controls
the vertical driving of a stage 507, and outputs a signal
scope of the invention, as described hereunder.
10
indicative of the operational state of the stage 507 to a sensor
poWer supply controller 503. A revolver drive controller 502
controls the rotation of a revolver 506, and outputs a signal
indicative of the operational state of the revolver 506 to the
sensor poWer supply controller 503.
The sensor poWer supply controller 503 controls the
poWer supply to the sensors 504 and 505, and sends signals
15
phragm.
In addition, While the invention has been described With
reference to the microscopes of the vertical illumination
type, the invention may also be adapted to microscopes of a
transmitted illumination type.
Further, While each of the embodiments have been
described With reference to the microscope apparatuses of an
enables monitoring of the ON/OFF state of poWer supply
from the sensor poWer supply controller 503 to the sensors
25
The individual embodiments uses, for example, the photo
interrupter/photo-re?ector as the sensor(s). HoWever, an
optical sensor(s) of a different type may be used. Further
more, a magnetic sensor, static capacitance sensor, or
mechanical sensor may be used.
a sWitch, for example.
Upon a sWitch operation of the ?rst sWitch 509, a signal
While each embodiment uses a connector terminal as an
output, it may use a TTL-level output or a Communication
terminal such as a USB or RS-232 serial port output or a
is sent to the sensor poWer supply controller 503, and the
method of poWer supply to the sensor 504 is changed.
35
changed.
Description has been provided referring to the con?gu
40
45
supplying poWer to the sensor 504.
A signal output from the second sWitch 510 is similar to
the signal from the ?rst sWitch 509. That is, When the second
means.
Further, the individual embodiments include inventive
techniques in stages. Various aspects of the invention may be
55
sensor 505.
Thus, according to the ?fth embodiment, the ?rst sWitch
509 and the second sWitch 510 are provided. The ?rst and
second sWitches 509, 510 are used to select the sensors 504
and 505, respectively, to be supplied With poWer from the
sensor poWer supply controller 503. Thereby, the method of
poWer supply can manually be set and changed for each of
the sensors 504 and 505. This feature enhances the degree of
adaptability to microscope apparatuses including various
tions may be such that the drivers are controlled by external
devices.
While each embodiment uses the sWitch as the sWitching
means for changing the sensor poWer supply method, com
mands externally issued by a personal computer or the like
may be used for the sWitching means.
While each embodiment uses the sWitches for the stage
and revolver operations, commands externally issued by a
personal computer or the like may be used for the sWitching
supply controller 503 alWays keeps supplying poWer to the
drive modes to be even higher. Further, the present embodi
ment enables optimal setting to be implemented to meet
rations in Which the drive controllers are built into the
microscope apparatus main body. HoWever, the con?gura
poWer supply controller 503 is enabled to alWays keep
sWitch 510 is set to OFF, the sensor poWer supply controller
503 is enabled to perform ON/OFF control for the poWer
supply to the sensor 505. Speci?cally, poWer is supplied to
the sensor 505 only at the time of driving of the stage 507.
When the second sWitch 510 is set to ON, the sensor poWer
parallel port output.
Although the embodiment using the silver ?lm camera as
the imaging means has been disclosed, a digital camera may
be used therefor.
a signal is sent to the sensor poWer supply controller 503,
and the method of poWer supply to the sensor 505 is
In the above state, When the ?rst sWitch 509 is set to OFF,
the sensor poWer supply controller 503 is enabled to perform
ON/OFF control for the poWer supply to the sensor 504. In
speci?c, poWer is supplied to the sensor 504 only When a
signal at the time of driving of the revolver 506 is sent to the
sensor poWer supply controller 503 from the revolver drive
controller 502. When the sWitch 509 is set to ON, the sensor
erecting type, the invention may be adapted to microscope
apparatuses of an inverted type.
The sensor poWer supply controller 503 is connected to a
?rst sWitch 509 and a second sWitch 510. The ?rst sWitch
509 and the second sWitch 510 are associated With the sensor
504 and the sensor 505, respectively, and are each formed of
Similarly, upon a sWitch operation of the second sWitch 510,
adapted to con?gurations using other electrically driven
drivers, such as a vieW diaphragm and an aperture dia
indicative of the states of poWer supply to the sensors 504
and 505 to a connector terminal 508. The connector terminal
508 can be connected to an external device (not shoWn) that
504 and 505.
The sensors 504 and 505 detect the states of the revolver
506 and the stage 507.
In each embodiment, the poWer supply is set to ON/OFF,
but the OFF state is not stopping the poWer supply and may
be an extremely small poWer supply.
The invention has been described With reference to
embodiments using the stage and the revolver as the elec
trically driven drivers. HoWever, the invention may also be
65
extracted by arbitrarily combining the plurality of con?gu
ration elements disclosed herein. For example, suppose that
even a con?guration excluding some of the overall con?gu
ration elements is sufficient to enable the problems described
herein to be solved and to enable the advantages and effects
described herein to be secured. The con?guration in this case
may be extracted by Way of one of the aspects of the
invention.
According to the individual embodiments disclosed
herein, poWer is supplied to the sensor for detecting the state
of the driver only When the driver is active. Consequently,
poWer consumption in the inactive state of the driver can be
reduced.
US 6,989,928 B2
11
12
Appropriate power control can be implemented also for
the driver that is to be controlled by a manual operation or
Which stops the poWer supply to the sensor depending on the
exposure state of the imager, Which is detected by the state
detection section.
electrical operation.
A microscope apparatus according to the fourth aspect of
the invention is characteriZed by comprising: a plurality of
Furthermore, the method of poWer supply can be changed
for each sensor in such a manner that the selecting section
selects at least one of the plurality of sensors to be supplied
With poWer from the poWer supply. As such, the degree of
adaptability to microscope apparatuses including various
drive modes is high, and settings can be implemented to
meet operation positions and purposes desired by individual
10
drivers mounted on a main body of the microscope appara
tus; a plurality of sensors to individually detect stopped
states of said plurality of drivers; a poWer supply Which
supplies poWer to said plurality of sensors; and a selecting
section Which selects at least one of said plurality of sensor
to be supplied With poWer from the poWer supply.
users.
Moreover, With the imaging means and the poWer supply
Additional advantages and modi?cations Will readily
being operated in association With each other, unnecessary
occur to those skilled in the art. Therefore, the invention in
light from the sensor can be avoided during image capture
operation. This contributes also to improvement in quality of
its broader aspects is not limited to the speci?c details and
15
described herein. Accordingly, various modi?cations may be
made Without departing from the spirit or scope of the
captured images.
As described above, according to the embodiments of the
general inventive concept as de?ned by the appended claims
and their equivalents.
invention, microscope apparatuses capable of implementing
reduction in poWer consumption can be provided.
From the individual embodiments, individual aspects of
What is claimed is:
the invention as de?ned in the appended claims can be
1. A microscope apparatus comprising:
extracted. The individual aspects of the invention may either
a driver mounted on a main body of the microscope
be independently adapted or be adapted in arbitrary combi
nation.
apparatus;
25
Amicroscope apparatus according to the ?rst aspect of the
on a main body of the microscope apparatus; a sensor Which
sensor from the poWer supply in accordance With a
drive control signal sent from the drive controller to the
driver.
2. A microscope apparatus according to claim 1, further
comprising a sWitch Which sWitches Whether to perform or
stop the supply of poWer from the poWer supply to the
35 sensor.
3. A microscope apparatus comprising:
provided.
a ?rst driver Which is mounted on a main body of the
Amicroscope apparatus according to the second aspect of
the invention is characteriZed by comprising: a ?rst driver
Which is mounted on a main body of the microscope
microscope apparatus and Which is driven by a manual
operation or an electrical operation;
40
apparatus and Which is driven by a manual operation or an
electrical operation; a ?rst sensor Which detects a stopped
state of the ?rst driver; a second driver Which is mounted on
driver;
microscope apparatus and Which is driven only by an
electrical operation;
45
a second sensor Which detects a stopped state of the
second driver;
a poWer supply Which supplies poWer to the ?rst sensor
and the second sensor;
a drive controller Which controls the driving of the second
driver; and
sensor, or at least one of: a ?rst sWitch Which sWitches 55
a controller Which controls the supply of poWer to the
second sensor from the poWer supply in accordance
With a drive control signal sent from the drive control
ler to the second driver.
4. A microscope apparatus according to claim 3, further
Whether to perform or stop the poWer supply from the poWer
supply to the ?rst sensor; and a second sWitch Which
sWitches Whether to perform or stop the poWer supply from
the poWer supply to the second sensor is further provided.
comprising a sWitch Which sWitches Whether to perform or
stop the supply of poWer from the poWer supply to the ?rst
sensor.
5. A microscope apparatus according to claim 3, further
A microscope apparatus according to the third aspect of
the invention is characteriZed by comprising: a driver
comprising at least one of:
a ?rst sWitch Which sWitches Whether to perform or stop
mounted on a main body of the microscope apparatus; a
sensor Which detects a stopped state of the driver; a poWer
the supply of poWer from the poWer supply to the ?rst
supply Which supplies poWer to the sensor; an imager Which
images an observation image acquired by the main body of
a ?rst sensor Which detects a stopped state of the ?rst
a second driver Which is mounted on the main body of the
the main body of the microscope apparatus and Which is
driven only by an electrical operation; a second sensor
Which detects a stopped state of the second driver; a poWer
supply Which supplies poWer to the ?rst sensor and the
second sensor; a drive controller Which controls the driving
of the second driver; and a controller Which controls the
poWer supply to the second sensor from the poWer supply in
accordance With a drive control signal sent from the drive
controller to the second driver. In the second aspect, it is
preferable that a sWitch Which sWitches Whether to perform
or stop the poWer supply from the poWer supply to the ?rst
a sensor Which detects a stopped state of the driver;
a poWer supply Which supplies poWer to the sensor;
a drive controller Which controls driving of the driver; and
a controller Which controls the supply of poWer to the
invention is characteriZed by comprising: a driver mounted
detects a stopped state of the driver; a poWer supply Which
supplies poWer to the sensor; a drive controller Which
controls driving of the driver; and a controller Which con
trols the poWer supply to the sensor from the poWer supply
in accordance With a drive control signal sent from the drive
controller to the driver. In the ?rst aspect, it is preferable that
a sWitch Which sWitches Whether to perform or stop the
poWer supply from the poWer supply to the sensor is further
representative devices, and illustrated examples shoWn and
65
sensor; and
a second sWitch Which sWitches Whether to perform or
the microscope apparatus; a state detection section Which
stop the supply of poWer from the poWer supply to the
detects an exposure state of the imager; and a controller
second sensor.
US 6,989,928 B2
14
13
6. A microscope apparatus comprising:
a ?rst sensor and a second sensor Which respectively
detect a state of the ?rst movable body and the second
a driver mounted on a main body of the microscope
movable body;
apparatus;
a sensor Which detects a stopped state of the driver;
a poWer supply Which supplies poWer to the sensor;
a poWer supply Which supplies poWer to the ?rst sensor
and the second sensor;
an imager Which images an observation image acquired
a drive controller Which detects one of a driving state and
by the main body of the microscope apparatus;
a stopped state of at least the second movable body; and
a state detection section Which detects an eXposure state
a sensor poWer supply controller Which controls the
supply of the poWer to the second sensor from the
of the imager; and
a controller Which stops the supply of poWer to the sensor
depending on the eXposure state of the imager, Which is
10
sent from the drive controller to the second actuator.
detected by the state detection section.
10. The microscope apparatus according to claim 9,
7. A microscope apparatus comprising:
further comprising a sWitch Which is sWitchable to select one
a movable body mounted on a main body of the micro
scope apparatus;
of performing and stopping the supply of the poWer from the
15
an actuator Which actuates the movable body;
a sensor Which detects a state of the movable body;
poWer supply to the ?rst sensor.
11. The microscope apparatus according to claim 9,
Wherein the sensor poWer supply controller stops the supply
a poWer supply Which supplies poWer to the sensor;
of the poWer to the sensor from the poWer supply in
accordance With the drive control signal sent from the drive
controller to the second actuator.
a drive controller Which detects one of a driving state and
a stopped state of the movable body; and
a sensor poWer supply controller Which controls the
supply of the poWer to the sensor from the poWer
12. A microscope apparatus comprising:
a movable body mounted on a main body of the micro
supply in accordance With a drive control signal sent
scope apparatus;
from the drive controller to the actuator.
8. The microscope apparatus according to claim 7,
poWer supply in accordance With a drive control signal
25
Wherein the sensor poWer supply controller stops the supply
of the poWer to the sensor from the poWer supply in
accordance With the drive control signal sent from the drive
an actuator Which actuates the movable body;
a sensor Which detects a state of the movable body;
a poWer supply Which supplies poWer to the sensor;
9. A microscope apparatus comprising:
an imaging unit Which images an observation image
obtained With the main body of the microscope appa
ratus;
a ?rst movable body Which is mounted on a main body of
a drive controller Which detects an eXposure state of the
controller to the actuator.
the microscope apparatus, and Which is drivable by at
least one of a manual operation and an electrical
operation via a ?rst actuator;
a second movable body Which is mounted on the main 35
body of the microscope apparatus, and Which is driv
able only by an electrical operation via a second
actuator;
imaging unit; and
a sensor poWer supply controller Which controls the
supply of the poWer to the sensor from the poWer
supply in accordance With the eXposure state of the
imaging unit detected by the drive controller.
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