ISP 500
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Catalog excerpts

ISP 500 - 1

Universal for all high-power LEDs, medium-sized LED modules and small lamps Non-opening and opening version with internal lamp post available Conforms to current CIE requirements for accurate luminous flux measurements 500 mm diameter, integrated auxiliary light source 150 mm port for mounting various adapter plates We BrInG QuALIty tO LIGHt Integrating Sphere for Measuring Total Radiant Power and Luminous Flux The ISP 500 integrating sphere from Instrument Systems features a diameter of 500 mm and has been designed for accurate measurement of the total radiant power and luminous flux of small lamps, high-power LEDs, and mediumsized LED modules. There are two variants of the ISP 500 available: a non-opening model in which the light radiation enters via a port on the side and an opening version that also enables measurements to be carried out inside the sphere. The optical coating of the ISP 500 consists of BaSO4 with approx. 97% reflection. All spectrometers from Instrument Systems can be interfaced with the ISP 500 by means of their fiber-optic connection on the detector port. Special adapter plates and proven LED test sockets are used to mount LEDs and launch the light radiation into the sphere. The universal, 150-mm diameter entrance port of the ISP 500 can be used to test larger samples. Any self-absorption effects, which are caused by the sample itself, are compensated by the integrated auxiliary light source.

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ISP 500 - 2

A distinction is made between two different measurement geometries when measuring with integrating spheres. With the 4ππconfiguration, the light source to be investigated is positioned at the center of the sphere in order to measure the light radiation emitted in all directions (total luminous flux). With the 2ππconfiguration, the test sample is positioned at an opening in the wall of the sphere so that only the light radiated into the front hemisphere is captured during measurement. This configuration is particularly suitable for LED light sources, whose radiation pattern is usually in the...

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ISP 500 - 3

Internal sample mount for 4π test setup In addition to the side-mounted radiation input port, the easy-to-open hinged version of the ISP 500 is equipped with an internal sample post positioned at the center of the sphere. The sample post is used to hold the test specimen when measuring with the 4ππconfiguration. It is equipped with 4 externally supplied connectors used to supply Auxiliary light source compensates selfabsorption power to the sample and for measuring the voltage. Special receptacles for radial LEDs with a raster size of 2.54 mm or for Type G4, GX5.3 and G6.35 halogen lamps...

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ISP 500 - 4

Inside diameter Inner coating Spectral range Measurement port diameter Spectrometer connection Internal sample post Outside dimensions (H, W, D), closed Outside dimensions (H, W, D), open Auxiliary light source operating voltage Ordering information Description ISP 500 Integrating Sphere Integrating sphere with 500 mm diameter; for measuring luminous flux and total radiant power of lamps, LEDs and LED clusters; hinges for opening and closing sphere; teflon lamp post in the center of the sphere; entrance port with 150 mm diameter; halogen auxiliary lamp; adapter for fiber bundle. Integrating...

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