CONCLUSIONS OF SPECTRAL RESPONSIVITY BASED TRISTIMULUS COLORIMETER CALIBRATIONS AT NIST

被引：0

作者：

Eppeldauer, George P. ^{[1
]}

Miller, Cameron C. ^{[1
]}

Larason, Terry C. ^{[1
]}

Ohno, Yoshi ^{[1
]}

机构：

[1] NIST, Gaithersburg, MD 20899 USA

来源：

PROCEEDINGS OF THE CIE EXPERT SYMPOSIUM ON SPECTRAL AND IMAGING METHODS FOR PHOTOMETRY AND RADIOMETRY | 2010年

关键词：

colorimetry; color measurement; color standard; color temperature; detector-responsivity-based calibration; matrix correction; solid-state light sources; tristimulus; tungsten lamps; IRRADIANCE; DESIGN;

D O I：

暂无

中图分类号：

TB8 [摄影技术];

学科分类号：

0804 ;

摘要：

New generation tristimulus colorimeters have been developed at NIST in the last few years. They were designed to realize and maintain colorimetric scales for light sources with low uncertainties. Instead of traditional source (lamp) based calibrations, the colorimeters were calibrated for absolute spectral responsivity in radiant power and irradiance modes at two different NIST facilities. The colorimeters were characterized for filter fluorescence, filter transmittance attenuation for ultraviolet and near-infrared radiation, stray light, spectral-spatial-, and angular-responsivity, noise equivalent illuminance (sensitivity), and long-term stability. The Y channels of the colorimeters can be utilized as standard photometers for illuminance. One colorimeter was extended with an additional (fifth) channel to apply matrix corrections for several different kinds of test source distributions. With this correction, the color-difference errors were decreased by more than a decade for single-color light emitting diodes (LEDs). The uncertainty in measuring color-temperature is 4 K (k=2) for tungsten lamps.

引用

页码：134 / 140

页数：7

共 10 条

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