CR-110 Flicker Detector/Photometer

CR-110 Flicker Detector/Photometer
CR-110 Flicker Detector/Photometer
The CR-110 Flicker Detector/ Photometer
uses dual photodiode technology to measure
photometric parameters (luminance, illuminance,
etc.), and for fast capture and digitization of the
light source.
©2014 Colorimetry Research, Inc.
The CR-110 provides fast data captures at user-selectable sampling rates ideal for flicker and
temporal analysis of modulated light sources, such as in the Solid-State Lighting (SSL) devices/
luminaries and displays with LED backlight dimming based on pulse-width modulation. An adaptive
electronic smart noise-filtering algorithm reduces high frequency noise.
Flicker characterization is compliant with the IDMS (Information Display Measurements Standard) published
by the SID’s (Society for Information Display) ICDM (International Committee for Display Metrology) working
group. This includes the FFT (Fast Fourier Transform) method of calculating dominant flicker frequency and
weighted flicker level to match the approximate temporal flicker sensitivity of the human eye.
The CR-110 provides the user with a highly accurate photometer that can be used to measure
luminance and illuminance, photometric transmittance, photometric reflectance, contrast ratio, and
The CR-110 is powered directly from any USB port and consumes only 120mA at 5V (600 mW),
making it a portable instrument without the need for batteries or external power. It is a USB 2.0
compatible device, remotely controlled by the host software from any personal computer, laptop, or
net book. As an option, the CR-110 can also be controlled by an Ethernet 10BASE-T/100BASE-TX
IEEE-802.3 compliant connection.
The CR-110 can be equipped with an External Trigger Port. The External Trigger Port/Sync Input
enables remote measurement activation from either a push button or a peripheral device, while
the External Trigger Port/Sync Output allows synchronization signals to measure strobes/pulsed
lights, and start/stop signals. This option is ideal for fast temporal events that need to be precisely
synchronized with the measurement or data capture.
Ruggedly constructed, the housing is machined aluminum and stainless steel, and can withstand
high acceleration rates for the most demanding motion positioning systems and environments. All
optical components are fixed to ensure that no optical misalignments occur due to vibration, shock
or high acceleration/ deceleration rates. The CR-110 is completely solid-state with no mechanical
shutter or moving parts to ensure high reliability and long mean time between failures (MTBF).
Weighing only 12 ounces (340 grams), it is the perfect tool for display inspection or mounting on fast moving
XYZ tables. Its small size and shape allows for several instruments to be mounted in the same motion control
system and the simultaneous measurement of several spots in the same display.
██ USB cable
██ Wrist strap and bracket
██ ND Filters (optional)
██ Universal mounting bar
██ Cosine Receptor (optional)
©2014 Colorimetry Research, Inc.
Y (Photopic)
1.4 – 1.8%
Each CR-110 goes through a strict quality control
process. Every photopic filter is measured using a double
monochromator and the results are provided in a large
graph format with the relative errors at 1 nm wavelength
increments. Photopic performance is included with the
unit so the user can verify that the instrument is within the
maximum f1' errors guaranteed.
The f1' value, specified in percentage error,
represents the degree to which the relative
spectral responsivity deviates from the CIE V(λ)
The PC-based software application is a streamlined, cross-platform, user-centric assistant used to perform
photometric and temporal analysis. It provides a familiar workspace regardless of the platform used. All
CR-110s come standard with a built-in, easy-to-learn, English language command interpreter to control
all aspects of operation via a computer, tablet or smart device, making it easy for users to create their own
software dedicated to perform specific measurement tasks or for inclusion in an Automated Test Environment.
In addition, a fully documented communication language with numerous real-world, sample templates are
included as starting points for customers to build their own software tools using any of the modern computer
development environments. LabVIEW driver is available upon request.
██ Cross Platform: The working environment is the same in every platform while taking advantage of
features specific to the host operating system.
██ Intuitive: The Interface is designed with a user-friendly approach allowing controls at your fingertips, not
hidden away in menus or complex preferences.
██ Connectivity: The software is engineered to support simultaneous data capture from multiple
connected instruments based on the contextual task at hand. Select an instrument to take a reading or
simultaneously use all open instruments.
██ Data Visualization: Measurements are presented in a customizable tabular grid or easy to read charts.
The software supports multiple types of measurements and co-exists gracefully within the same
streamlined interface. All data can be exported easily into your own spreadsheet application for further
██ Display Flicker and Response Time Measurements: The CR-110 uses proprietary hardware and
software for fast sampling of display luminance to compute flicker levels (or modulation amplitude),
dominant flicker frequency components and response times.
The Colorimeter Utility is an accompanying tool that aids in updating, preserving and recovering the
state of the instrument.
©2014 Colorimetry Research, Inc.
Spot size at end of hood
23.0 mm
Spot size at 100 mm from end of hood
31.7 mm
The spot size can be calculated at any distance from the end of the rubber hood with the following equation:
Spot size (mm) = 23.0 mm + 0.08732 * distance to object (mm)
Wavelength Range
380 – 780 nm
Luminance Range
0.0002 fL to 15000 fL
0.0002 fL @ Signal to Noise Ratio > 10, 20 seconds exposure
0.001 fL @ Signal to Noise Ratio > 10, 0.5 second exposure
0.001 fL @ Signal to Noise Ratio > 100, 20 seconds exposure
1500 fL @ Signal to Noise Ratio > 8000, 0.001 second exposure
Luminance Accuracy
± 2 % @ 0.1 fL, 0.4 second exposure
Luminance Repeatability
0.2 % @ 0.1 fL, 0.4 second exposure
1.5 % @ 0.01 fL, 0.5 second exposure
1.5 % @ 0.001 fL, 20 seconds exposure
Polarization Error
≤0.1 %
ADC Resolution
16 bits
Synchronization Frequencies
10-500 Hz (Custom Synchronization from 10 Hz to 10 KHz available)
Exposure Time Range
1 ms to 20 seconds
Power Requirements
5V, 120 mA (600 mW) via USB 2.0
USB 2.0, Ethernet
Weight / Mass
12oz. (0.34 Kg.)
When Custom Synchronization is selected, the user is required to enter the refresh rate or the on/off frequency of the
device he is measuring. All the above measured with a NIST-traceable 2856 K light source.
Electro-optical Bandwidth
1 MHz
Maximum Sampling Rate
333 K samples per second
Minimum Sampling Period
3μ seconds
ADC resolution
12 bits
Number of ranges
4 manual (Auto-Range available)
Noise Filtering
Proprietary smart noise filter technology
Get in touch
As part of our policy of continuous product improvement, we reserve the right to change specifications at any time
©2014 Colorimetry Research, Inc.
August 25, 2014
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