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INTEGRATING SPHERE |
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Characterization and quantification of diffuse light signals is often a problem in lightning technology. For measuring such signals we produce integrating spheres made of stable, spectral uniform reflective materials with very good Lambert Properties. For all laminations we use only ultrapure selected materials without self lumination and free of luminescence. We have produced the following technologies: |
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| Lamination BaSO4 based | ||||||||||
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The
BaSO4-lamination is price sensitive and well qualified for the visible
spectral range. It also can be used in a wider range taking in account
the spectral reflection curve. Our special photometer laquer can be
sprayed on nearly all basic materials. Our laquer needs to be printed in at least 8 layers. Therefore we get an almost perfect diffuse reflection independently from the wave length in the visible spectral range. spectral range: 300 - 1300 nm reflexion: > 90% possible diameters: 100 - 3000 mm Up to 250 mm diameter we mill the integrating spheres out of an aluminium block, above 250 mm diameter the semi scarves will be pressed with soft aluminium plates. |
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| Lamination with sintered optical PTFE | ||||||||||
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The PTFE is an
optimum solution for wave length between 180 nm until 2500 nm. It can be
used in ultra violet range, in the visible range and also in the near
infrared range. The minimum thickness is 8mm. Depending on the size, the
integrating sphere is milled out of a block, or a metal globe will be
coated with PTFE plates spectral range: 180 - 2500 nm reflexion: > 99% possible diameters: 10 - 1000 mm |
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| Gold plated integrating sphere | ||||||||||
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Above 1000 nm a
gold plated integrating sphere can be used. Depending on the size and
necessary diffuse property, the gold will be added galvanical or through
vacuum evaporating. The know-how is in the repeatability of the diffuse
property, as the typical golden sheen is not required in this case. spectral range: 1100 - 20 000 nm reflexion: > 96% possible diameters: 10 - 500 mm |
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