Photo Research, Inc.

Transmissive Filter Standards

Transmissive Filter Standards - Filter Standards are used for photometric, colorimetric, and spectrophotometric calibrations and measurements. These are used as reference materials to render specific transmittance or chromaticity coordinates. These Standards are calibrated with our most accurate systems that provide high spectral purity with low stray light levels. Another type of Transmissive Standards are Opal Diffused Transmittance Standards. These are most typically used on a photometric bench to accurately obtain a luminance level from known illuminance being projected at a distance from a Lamp Standard.


6000-0014-36	CRF-35 - Chromaticity Reference Filters



6000-0014-37	NBS-3215 - IPL Red Limit Calibration Filter



6000-0014-38	AVR-5P - Aviation Red Filter Set



6000-0014-39	NDF-XX*P - Neutral Density Filters (Spectrally Calibrated)

	(*: XX Specifies density i.e. -05=0.5D, 10=1.0D, etc.)

6000-0014-40	OGC-4P - 4" diameter Opal Diffuser (Luminous Transmittance Factor other shapes and sizes available on request)



6000-0014-41	D-65 - Day Light Filter

	2" x 2" (50.8 x 50.8 mm) external filter. D65 closely resembles the relative spectral energy distribution of daylight and closely matches that of a black-body at 6500K.

NOTE: Customer submitted filters may also be Characterized and Standardized if they are found suitable for the specific requirement.

In this page
	Overview

	Spectral Irradiance Lamp Standards

	Photometric Lamp Standards

	DC Power Supplies

	Reflectance Standards

	Transmissive Filter Standards

	Calibrated Test Pattern

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