The model 263 miniature Photometric sensors are designed with spectral responsivity that matches the human visual system, incorporating a silicon detector combined with a spectrally matched photometric filter. An integrated cosine filter significantly reduces directional sensitivity for ease of use.
Our wide range of optical power meters, photometric and radiometric sensors is complemented by ISO/IEC 17025 accreditation by NVLAP (NVLAP lab code 200823-0), resulting in unmatched performance and custom configuration as required.
- Illuminance Measurements (lux)
- Luminous Intensity Measurements (cd)
- Luminous Flux Measurements (lm) when used with model 2575 mini-sphere
Key Specifications Part No. U23-01-180
CIE V (λ) Function
f1’ ≤ 3% (standard)
f1′ ≤ 1% (special order)
Silicon 0.34 cm2 active area
1 µ sec
5 x 10-1 to 5 x 105 lux
7.3 x 10-10 A/lux
ISO 17025, NIST Traceable
2 meter, included
Compatible with the UDT Handheld and Benchtop series Optical Meters and Integrating Spheres.
(1) Stand alone with cosine receptor. Value may differ when used with integrating sphere, other accessories, or with cosine receptor removed.