ISO9001 Wooden storage box
Optical system
Illumination System
UIS2 (Universal Infinity System) optical system
Built-in transmitted illumination system
6V20W halogen bulb
100-240V 50/60Hz universal voltage
Stage height movement (coarse movement stroke 20mm)
Fine focus graduation: 2.5µm
Revolving nosepiece Fixed quadruple nosepiece
Wire movement mechanical fixed stage: 120X132mm
Traveling range: 76mm(X)X30mm(Y)
Single specimen holder
Observation tube
30° inclined binocular tube
Interpupillary distance adjustment range 48-75mm
Abbe type with aperture iris diaphragm N.A.: 1.25
Objective lens
Plan Achromatic objectives (anti-fungus)
N.A.: 0.10
W.D.: 18.5mm
10X N.A.: 0.25
W.D.: 10.6mm
40X N.A.: 0.65
W.D.: 0.6mm
100X N.A.: 1.25
W.D.: 0.13mm (option)
Eyepiece (10X)
Field Number (F.N.): 18 (anti-fungus)
Optional accessories Mirror unit, 15X eyepiece (F.N. 12, anti-fungus), cord rest, wooden
storage box, filar micrometer, wire pointer, filter holder, darkfield stop
A wooden storage box is available as an
optional accessory. It is convenient, sturdy
and includes a handle for easy carrying.
Dimensions: 264(W) X 305(D) X 474(H)mm
(unit: mm)
383.5 (EP)
Wooden storage box
Safety & Electromagnetic radiation
Environmentally-friendly product
All optical components in CX21 microscope
use lead-free eco-glass.
Specifications are subject to change without any obligation on the part of the manufacturer.
weight: 5.9kg
The CX21 meets or exceeds UL/ICC/CE standards
for safety and for electromagnetic radiation.
Design and production
adheres to ISO9001
international quality standard.
This catalog is printed by enviromentally-friendly
waterless printing system with soy ink. Printed in Japan M3455E-0304B
Step Up To
Higher Performance
With The Olympus
UIS2 Infinity Optics
The CX21 sets new standards for
educational and clinical microscope in
biological applications
Superb image clarity coupled with Oly
Superior imaging
Easy, safe operation
Plan objectives are packaged as standard,
providing image flatness that is among
the best in this class
Rackless stage for durability and ease of use
The CX21 is equipped with the same UIS2 optical system used in
Olympus’ top-level microscopes. In addition, Plan Achromat
objectives are included as standard for the first time in this class of
microscope, providing sharp images with high contrast right up to
the edge of the field of view.
The wire-driven stage movement avoids any protrusion of racks —
preventing the possibility of accidental damage or hand injury.
Abrasion-resistant rackless design ensures continuous smooth
Rackless stage
Conventional stage
Component security — Student proof !
The eyepieces, objectives and condenser are all factory attached to
the microscope body ensuring that no component is dropped or
detached during transportation or regular use.
Bright, uniform illumination
The CX21's 6V20W high intensity halogen lamp delivers clear,
stable illumination. The built-in aspheric collector lens provides
images that are bright and uniformly illuminated over the entire
field of view.
Ultra-smooth, quadruple revolving nosepiece
High-precision machining ensures smooth operation and durability.
Nosepiece includes a rubber ring for an easy ergonomic grip.
Mechanical stage focus-lock prevents mishaps
Abbe condenser for optimized contrast
The optimal aperture stop position for each objective is clearly
marked on the Abbe condenser,
resulting in high-resolution,
high-contrast images.
The focus position can be locked making it easy to refocus when
the specimen is changed. With the upper stage position locked,
there is no chance of the
objective accidentally touching
the slide and damaging either the
specimen or the objective itself.
mpus’ renowned reliability and rigidity
Use in any environment
Suitable for any user
Anti-fungus treatment for component durability
Individual choice of adjustment
An effective anti-fungus treatment is applied to the objectives,
eyepieces and observation tube for consistent image clarity and
long operating life even in hot humid work conditions.
Binocular observation tube is inclined 30 degrees allowing for an
ergonomic, comfortable posture during observation. Eyepieces can
be easily set for multiple users with a scaled interpupillary distance
adjustment and diopter
Scale setting. High eyepoint design
eyepieces with F.N.18 can be
used comfortably without
removing eyeglasses.
48 — 75mm
Tension adjustment for smoother focusing
Compact design, easy to store and carry
The CX21 is only 391 mm high, compact enough to be stored in a
typical classroom cabinet. A cord-rest and wooden storage box are
also available as an option, for convenient storage and portability.
The coaxial coarse/fine focusing knob is operable from either
the left or right side. Coarse movement tension can be adjusted in
accordance with personal preference.
Ergonomic design for user convenience
The focusing knob, light control adjustment knob and stage handle
are located close together, the user can work with hands on the
desk and operate the CX21 with minimal movement.
Mirror unit allows observation with
no power source
Attachment of the optional mirror unit allows observations to be
made even when no power source is available. When an external
light source is used, the observation head can be reversed and the
slide can be viewed through a large opening in the arm.
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