UDT Model 265 Photometric Sensor

The model 265 products consist of luminance sensors including an occluder ring for blocking ambient light. Ideal for measurement of displays, these sensors are designed with spectral responsivity that matches the human visual system, incorporating a silicon detector combined with a spectrally matched photometric filter.  

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.

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  • Luminous Intensity Measurements in nit (cd/m2)
  • Luminance Measurements foot-lamberts
  • Integrated fixed-focus lens for non-contact measurement
  • Standard 82.6 mm or optional ‘mini’ 62.0 mm occluder*

* Append 'm' to item number for mini occluder.

Key Specifications                                             Part No. U23-01-184 (m)

CIE V (λ) Function

 f1’  ≤ 3% (standard)

 f1'  ≤ 1% (special order)

Detector Information

Silicon    0.34 cm2 active area

Dynamic Range

1 x 10-3 to 1 x 104 cd/m2

Typical Response

1.1 x 10-9 A/cd/m2 @ 555nm

Calibration

ISO 17025, NIST Traceable

Cable

2 meter, included

Compatible with the UDT Handheld and Benchtop series Optical Meters and Integrating Spheres.

 

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