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Integrating Spheres

Photonics Spectra
Apr 2011
Gigahertz-Optik Inc.Request Info
To measure luminous flux, color and spectral distribution of large-area LED solid-state and traditional-type light sources, a large-diameter integrating sphere typically is used. Gigahertz-Optik Inc.’s ISD family of integrating spheres is designed for use with the BTS256-LED tester. The ISD-100HF-V01 1000-mm-diameter integrating sphere is coated with the proprietary ODP97 white diffuse barium sulfate. A bayonet mount on the detection port enables attachment of the BTS256-LED tester. The sphere is designed for 4-pi geometry measurements of omnidirectional light sources. The hinge frame stand allows one hemisphere to open/close for mounting of the test LED or lamp source in the center of the sphere. A telescoping sample holder supports positioning and electrical connection of the test light source in the sphere center. An auxiliary port is included.


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luminous flux
Descriptive of the radiant power of visible light modified by the eye response. It is the measure of the flow of visible light energy past any given point in space in a given time period, and is defined as the amount of flux radiated by a source of 1 candela into a solid angle of 1 steradian.
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