Used to measure the light distribution curve, illuminance, light intensity data, beam angle, luminous flux and other parameters of small LED lamps (halogen lamps, cup lights, spotlights, bulbs, etc.) and single high-power LEDs. The instrument is designed with an optical dark box and light barrier, eliminating the need for a dark room. The test method meets the test requirements of CIE127 and IEC 61341 standards.
Light intensity test principle:
D: device under test G: current source PD: photometric detector including aperture D1 with area A D2, D3: aperture to eliminate stray light; d: distance between device under test and aperture D1
