1. Next generation high performance instrument for measuring Luminance and Chromaticity of light sources.

2. A complete range of instruments
Accuracy
CS-1000A/S/T
Spectroradiometer
CS-200
Chroma Meter with spectral engine
CS-100A
Three filter type of Chroma Meter
Price

3. CS-200 - Main features Wide measuring range: 0.01 to 20,000,000 cd/m²
High accuracy:
Spectral fitting method assures close matching to CIE sensitivity curves
Portability:
Compact Lightweight Battery powered
Optional accessories: Close up lenses
ND filter
Calibration plates for object mode
Angle Finder
Soft case
3 Measuring angles:
1° , 0.2° , 0.1°
Small area measurement (0.1mm)
PC software:
Standard accessory
Professional version optional
Wide application range: Research & Development
Quality assurance
Various functions:
Synchronized Measurements
Selectable measurement speed
USB connection to PC
Large LCD display
Data storage

4. Composite Y sensitivity created
CS High accuracy due to spectral sensor
Spectral sensitivity of the CS-200’s 40 sensors
Composite Z sensitivity created by calculation
Composite X sensitivity created by calculation
Composite Y sensitivity created
by calculation

5. CS-200 - Spectral fitting method
Peak wavelength : 430 nm
Peak wavelength : 435 nm
CS-200 utilizes a photo diode array with 40 sensors
Output data is corrected by adding coefficients for each sensor and wavelength position

6. ＋ ＝ ＋ ＝ CS-200 - Spectral fitting method Target function
Compensation factors
Sensor 1 = 0
Sensor 2 = 0
Sensor 3 = 0
Compensation factors
Sensor 1 = 0.7
Sensor 2 = 0
Sensor 3 = 1.3
Compensation factors
Sensor 1 = 0.4
Sensor 2 = 0
Sensor 3 = 1.6
Composite sensitivity

7. CS-200 – CIE colour matching functions
Spectral fitting method provides precise matching to the sensitivity of human eye and results with superior inter instrument agreement.
CS-200 specification:
f1 = 1% (Class L is 2%)

8. Spectral sensitivity
Why is matching to CIE Vλ curve (f1) that important?
Photometric value is specified by the area of radiant energy which is covered by the Vλ curve.
Ex. Illuminant A
All the red area
Ex. LCD
Green area

9. Spectral sensitivity  

10. Spectral sensitivity – Example LEDs

11. Comparison of measurement result (CS-1000A – CS-200)

12. Comparison of measurement result (CS-1000A – CS-200)
DLv
LCD
PDP
LED

13. Comparison against conventional filtered colorimeter
Conventional tristimulus colorimeters
■LCD White
■LCD Red
■LCD Green
■LCD Blue
▲PDP White
▲PDP Red
▲PDP Green
▲PDP Blue
◆LED White
◆LED Red
◆LED Green
◆LED Blue
CS-200
□LCD White
□LCD Red
□LCD Green
□LCD Blue
△PDP White
△PDP Red
△PDP Green
△PDP Blue
◇LED White
◇LED Red
◇LED Green
◇LED Blue
Luminance
Chromaticity

14. CS-200 – Colour management network
Absolute accuracy and superior inter instrument agreement allow building of colour management networks without using physical reference objects or user calibration

15. CS-200 - Wide measuring range & excellent repeatability
Low luminance like 0.01 cd/m² can be measured
Ex.: Contrast measurements
High luminance up to 200,000 cd/m² can be measured
With 0.1° aperture up to 20,000,000cd/m²
Optional ND filters expand the range (1/10 & 1/100)
Ex.: Projector lamps, high pressure lamps, …
Repeatability (Standard light source A)
cd/m² Lv ±0.03 cd/m² ±1digit --- (2 s / SLOW)
1-2 cd/m² Lv ±2 % ±1digit xy (2 s / SLOW)
2-4 cd/m² Lv ±2 % ±1digit xy (2 s / SLOW)
4-8 cd/m² Lv ±2 % ±1digit xy (2 s / SLOW)
8-200,000 cd/m² Lv ±0.2 % ±1digit xy (2 s / SLOW)

16. CS-200 – Relation of repeatability and measurement speed
Meas. Time
Integration time
Repeatability
Measurement range Ly xy
Super fast
0.65 sec
300 msec
Slow * 2
cd/m²
±0.03 cd/m² ±1digit
---
Fast
1.2 sec
Slow *2
1-2 cd/m²
±2 % ±1digit
0.008
Slow
3.2 sec
1300 msec
2-4 cd/m²
0,004
Super slow
12.4 sec
5200 msec
Slow / 2
4-8 cd/m²
0.002
Auto
1.2 sec or 3.2 sec
300 msec or 1300 msec
----
8-200,000 cd/m²
±0.2 % ±1digit
0.001
Manual
1-60 sec (1 sec step)
Measurement time: Actual time required for measurement (integrating time ×2+shutter open/close time + calculation time)
Integrating time: Time sensor is measuring light (exposure time)
Auto mode switching levels: FAST -> SLOW: Below 20 cd/m²
SLOW -> FAST: 40 cd/m² or above

17. CS-200 - Selectable measuring angle
Three build in apertures provide measuring angle of 1°, 0.2° and 0.1°
Quickly selectable by slider switch on instrument
Small area like  0.1 mm can be measured
CS-200
Measuring area of  0.5 mm
Optional close up lens No.122
Measuring area of  0.3 mm
Optional close up lens No.107
Measuring area of  0.1 mm

18. CS-200 - Selectable measuring angle
1° aperture
Middle & large size
LCD, PDP, EL display
Light source like lamp or back light
0.2° aperture
Small size
LED parts
Instrument panel
Switch panel
0.1° aperture
Very small size or distant
Pixel of LCD or PDP…
Brake lamp
Signal lights

19. CS-200 – Synchronized measurements
Emission period
The emission period can be set by inputting the numerical frequency value (40.00 to Hz) (The measuring period is an integral multiple of the emission period (for periods longer than 300ms)
Measuring period

20. CS-200 – Object colour measurements
With the optional white calibration plate CS-200 can be used for object colour measurement
Selectable 2˚ and 10˚ Standard Observers

21. CS-200 – Eyepiece adjustment

22. CS-200 – Large display with backlight

23. CS-200 – Colour space display
Lv x y
Lv u’ v’
Lv T ⊿uv
X Y Z
Dominant wavelength

24. CS-200 – Absolute and difference display

25. CS-200 – Peak and valley calculation

26. CS-200 - Truly portable instrument
Compact
95mm (W) * 127mm (H) * 330mm (L)
Hand-held
Light weight
1.8 kg (without battery)
Battery powered or AC adapter connection
AC-Adapter is standard accessory
4 AA size batteries

27. CS-200 Application examples
Displays
Aircraft cockpit
Traffic lights
LED displays
Brake lights
Switch panels
Instrument panel
Lamps

28. CS-S10W standard data processing software
Standard accessory of CS-200
Extremely user-friendly
For R&D as well as for QC
Supports light source and object mode
Data list
Box tolerance setting
Pass / Fail function
Export to i.e. Microsoft EXCEL
Interval and averaged measurements
Upload & Download of targets
Upload of samples
User calibration

29. CS-S10W professional version data processing software
Optional accessory of CS-200
Additional functions to standard version:
Additional modes
Contrast, RGB, RGB & Contrast
Single or multiple measurement points
Diagrams as well as data list
Chromaticity diagram (Lv xy, Lv u’v’, L*a*b*), Trend graph, Pass/fail, Uniformity, Contrast judgement, Image (sample or target)
Polygon tolerances
Customizing of screen and reports
Template function

30. Thank you for your attention!
Next let’s have a look to the instrument and the software