Optical characterization of diffuser-input standard irradiance meters

被引：13

作者：

Eppeldauer, G ^{[1
]}

Racz, M ^{[1
]}

Larason, T ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Opt Technol Div, Gaithersburg, MD 20899 USA

来源：

OPTIKA '98 - 5TH CONGRESS ON MODERN OPTICS | 1998年 / 3573卷

关键词：

aperture; cosine function; directional responsivity; detector; diffuser; irradiance; photodiode; radiometer; spectral responsivity; working standard;

D O I：

10.1117/12.321015

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Standards quality irradiance meters have been developed at the National Institute of Standards and Technology (NIST) to realize a detector based spectral irradiance scale. The design criteria and the optical and radiometric characterization of diffuser-input irradiance meters are discussed. The input geometry optimization is described for a broad-band InGaAs irradiance meter when measuring a 2856 K incandescent light source. The directional responsivity of the fabricated InGaAs and Si irradiance meters matches the cosine function with a maximum deviation of 0.15 % within a 12 degrees field-of-view (FOV). Irradiance from sources of different sizes (incident beams with different f/numbers) can be measured over a wavelength range of 350 nm to 1800 nm.

引用

页码：220 / 224

页数：5