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光譜輻射度計(jì)

CR 250 光譜式亮度、色度計(jì)


“CR 250的可轉(zhuǎn)動(dòng)目視對(duì)準(zhǔn)目鏡系統(tǒng)，以及可選的監(jiān)控?cái)z像頭，可大大解放測(cè)試者的眼睛”

CR 250 是一款便攜性的光譜輻射度計(jì)，有可見光（380nm-780nm）和近紅外（380nm-1050nm）兩種型號(hào)

測(cè)試參數(shù)： 亮度，色度，光譜輻亮度，色溫，顯色指數(shù)，并支持透射、反射、光密度測(cè)量
應(yīng)用領(lǐng)域： 顯示器調(diào)校；LED測(cè)量；道路照明評(píng)價(jià)
主要特點(diǎn)： 便攜、高精度；帶有低溫自動(dòng)加熱功能，可以在嚴(yán)寒的野外條件下正常工作

技術(shù)參數(shù)

選件與附件

軟件功能

探測(cè)器	CMOS image sensor, 256 pixels （紅外512 pixels）
光譜范圍	380 - 780 nm （380-1080nm)
光譜帶寬	5 nm
波長精度	± 0.3 nm
光譜解析度	1.6 nm / pixel
亮度范圍	0.05 fL to 45000 fL(0.1-135000cd/m2)^{? ?}
亮度精度	±2 %^Ω
亮度重復(fù)性	≤1%^Ω
色度精度	± 0.0015 x, y^Ω
色度重復(fù)性	0.0005 x, y^Ω
偏振誤差	≤ 0.5 %
數(shù)字解析度	16 bits
光學(xué)系統(tǒng)	Direct viewing and direct measuring system
物鏡	40 mm
變焦范圍	200 mm to infinity
光圈	Fix (available at order time: 3°, 2°, 1°, 0.5°, 0.25°, 0.125°)
視場(chǎng)	10°
瞄準(zhǔn)光路	Patent pending removable and rotatable viewing system.
同步頻率	10 - 10000 Hz
曝光范圍	0.02 to 30 seconds
功耗	5V, 120 mA (600 mW) via USB 2.0
數(shù)據(jù)接口	USB 2.0, Ethernet, RS-232
重量	1 pound (0.45 kg) 1.2 pounds (0.54 kg) with viewing system VO-201

選件與附件標(biāo)題

強(qiáng)光衰減片；余弦修整器；光纖探頭；內(nèi)置加熱器；積分球；外部觸發(fā)接口（用于同步及閃爍信號(hào)測(cè)試）

不同光圈對(duì)應(yīng)的測(cè)試點(diǎn)大小：

測(cè)試距離 (mm)	3° Aperture (mm)	2° Aperture (mm)	1° Aperture (mm)	0.5° Aperture (mm)	0.25° Aperture (mm)	0.125° Aperture (mm)
2000	103.50	68.99	34.49	17.25	8.62	4.31
1500	77.30	51.53	25.76	12.88	6.44	3.22
1000	51.10	34.06	17.03	8.52	4.26	2.13
750	38.02	25.34	12.67	6.34	3.17	1.58
500	24.94	16.62	8.31	4.16	2.078	1.039
400	19.69	13.12	6.56	3.28	1.64	0.82
300	14.46	9.64	4.82	2.41	1.205	0.603
254	12.05	8.03	4.01	2.01	1	0.5
250	11.84	7.89	3.94	1.97	0.985	0.493
240	11.31	7.54	3.77	1.89	0.943	0.471
200	9.22	6.14	3.07	1.54	0.768	0.384

軟件功能及特點(diǎn)

CR250 軟件基于Colorimetry Research, Inc 公司的 CRIApp軟件平臺(tái)，該平臺(tái)同時(shí)支持其他CR 100,200,110等產(chǎn)品。具有以下特點(diǎn)和功能：

Standard

Tristimulus - XYZ (2° & 10° observers)
CIE 1931 - xy (2° observer)
CIE 1960 - uv
CIE 1964 - xy (10° observer)
CIE 1976 - u'v'
Luminance - fL & cd/m2
Illuminance - lux & fc
Luminous Intensity - candelas
Luminous Flux - lumens & candelas
RGB
CCT, MK^-1, uv Deviation
Dominant Wavelength, Purity

Transmittance

Reflectance

Absorptance

Optical Density

Contrast

Contrast Ratio
Raster Modulation
Depth of Modulation

Gamma

γ(X), γ(Y), γ(Z)

Color Rendering Index

L*a*b*

L*ab
C*ab (Chroma)
h ab (Hue)
ΔE*, ΔH*

L*u*v*

L*uv
C*uv (Chroma)
h uv (Hue)
s uv (Saturation)
ΔE*, ΔH*

Flicker

Flicker Frequency
Weighted Flicker Level (EIAJ or JEITA flicker level, ISO flicker)
Photometric Flicker (IESNA)
- Percent Flicker
- Flicker Index
- Flicker Modulation Amplitude

免費(fèi)的 SDK：

The CRI colorimeters comes standard with a well documented, easy to learn, pseudo english language based, command interpreter to control all aspects of it's operation using a computer, tablet or a smart device, making it a easy for customers 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 and calculation libraries with numerous real world sample templates are included as starting points for building your own software tools using any of the modern computer development environments such as Visual Studio, Xcode etc.
LabVIEW driver available upon request.