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PMA 2133 Luminance Probe
The PMA2133 measures luminance according to photopic luminous efficiency curve.
Features:
- High sensitivity
- Wide dynamic range
- Excellent long-term stability
- Cosine corrected
- NIST traceable calibration
Applications:
- Quality control of CRTs
- Inspection of monitors
The PMA2133 is a portable luminance detector with spectral response
following the CIE photopic action spectrum. This detector is designed to have a spectral response like that of the human eye's visual response in the photopic region.
The photopic spectral luminous efficiency curve peaks at 555nm and it is normalized to 1 at that wavelength. Luminance is the luminous intensity per unit area projected in a given direction. The standard unit for luminance is cd/m2 (candela per square meter, sometimes referred to as nit). Another common unit of luminance is fL (footlambert) where 1 fL = 3.426 cd/m2. Luminance is essentially the amount of visible light leaving a point on a surface in a particular direction. The light that leaves the surface can be due to emission, reflection, or transmission.
Specifications:
- Spectral response Follows CIE photopic spectral luminous
efficiency curve (400-700nm) Figure 1
- Field of View 13°
- Range 0 - 6,800 cd/m2 0 - 2,000 fL
- Display resolution 0.01 cd/m2 or 0.01 fL
- Operating environment 32 to 120 °F (0 to +50 °C)
- Cable 5'.(1.5 m)
- Viewing Diameter 0.45" (11.4 mm)
- Diameter 1.6" (40.6 mm)
- Height 3.2" (81.3 mm)
- Weight 3.9 oz. (110 grams)
