Prouducts 
Contant Spectroradiometer CS-2000
The CS-2000 is a polychromator type spectroradiometer which can measure contrasts of 100,000:1 and features the world's top level capability to detect extremely low luminance levels of 0.003 cd/m2.
The optical design and signal processing technologies of this instrument also provide accurate measurements of low to extremely low luminance and chromaticity measurements. Measurements are calculated in as little as 5 seconds, which eliminates mechanical and electrical noise factors.
The CS-2000 has a low polarization error of 2% which ensures more stable measurements of displays that use polarization, including LCDs. The selectable measuring angle feature enables the user to select the optimum angle of 1°, .2°, or .1° based on the application. With a temperature range from 5° to 35°C, this instrument is reliable in any work environment.
Measurements can be taken after a warm-up time of only 30 seconds. The CS-2000 has three measurement settings, internal and external synchronization, and multi-integration mode. Synchronization can be done either internally with user inputs or externally via line input. Multi-integration mode reduces variations due to unsynchronized measurement or synchronized measurements of sources that have irregular light emission cycles.
The CS-2000 features a color LCD screen and simple operation panel, easy for first time users.
Features
Detects extremely low luminance - as low as 0.003 cd/m²
Easy operation with a color LCD screen
Measuring angle switching function
Low polarization error - Ideal for LCDs
Quick measurements
3 measurement settings: internal synchronization, external synchronization and multi-integration mode
Specifications
| Model | CS-2000 | |||
|---|---|---|---|---|
| Wavelength range | 380 to 780 nm | |||
| Wavelength resolution | 0.9 nm/pixel | |||
| Display wavelength bandwidth | 1.0 nm | |||
| Wavelength precision | +-0.3 nm (Median wavelength: 435.8 nm, 546.1 nm, 643.8 nm; Hg-Cd lamp) | |||
| Spectral bandwitdh | 5 nm or less (half bandwidth) | |||
| Measuring angle (selectable) |
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| Measurement luminance range (Standard light source A) |
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| Minimum measuring area |
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| Minimum measuring distance | 350 mm (55 mm when using close-up lens) | |||
| Minimum spectral radiance display | 1.0x10(-9) Ws/r, m(2), nm | |||
| Accuracy: Luminance *1(Standard light source A) | +-2% | |||
| Accuracy: Chromaticity *1(Standard light source A) |
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| Repeatability: Luminance(2σ)(Standard light source A) *2 |
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| Repeatability: Chromaticity(2σ)(Standard light source A) before *2 |
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| Polarization error | 1°: 2 % or less(400 to 780 nm) 0.1° and 0.2°: 3 % or less(400 to 780 nm) | |||
| Integration time | Fast: 0.005 to 16 sec.; Normal: 0.005 to 120 sec. | |||
| Measurement time | 2 secs. minimum (Manual mode) to 243 sec. maximum (Normal mode) | |||
| Color space mode | Lv x y, Lv u'; v';, Lv T Δuv, XYZ, spectral graph, dominant wavelength, excitation purity, scotopic luminosity (with CS-S10w Professional) | |||
| Interface | USB 1.1 | |||
| Operating temperature/ humidity range | 5 to 35°C, relative humidity 80% or less with no condensation | |||
| Storage temperature /humidity range | 0 to 35°C, relative humidity 80% or less with no condensation | |||
| Power | AC adapter (100 to 240V~,50/60 Hz) | |||
| Current consumption | Approx. 20 W | |||
| Size | 158 (W) x 262 (H) x 392 (D) mm (Main Unite), ø70 x 95 mm (lens) | |||
| Weight | 6.2 kg | |||
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*1 Average of 10 measurements in NOrmal mode at temperature of 23+- 2°C and a relative humidity of 65% or less *2 10 measurements in NOrmal mode at a temperature of 23 +-2°C and a relative humidity of 65% or less | ||||
