Optical arrangement for quantitative analysis instrument utilizi

Details Optical arrangement for quantitative analysis instrument utilizi Optical arrangement for quantitative analysis instrument utilizi

1981-05-27

1983-04-05

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Solid state light source

250223R, H01L 900

Patent

active

043792332

ABSTRACT:
An instrument for quantitative analysis using a matrix of radiation emitting diodes has means for assuring that a sample receives substantially uniform radiation from each diode. In the preferred embodiment a lens is used to direct the radiation beams to a focal plane where there is a matte surface diffuser backed with an aperture to provide relatively uniform radiant energy field through the aperture to a sample chamber. With this arrangement the same energy distribution contacts the test samples from each of the radiation sources.

REFERENCES:
patent: 4229103 (1980-10-01), Hipp

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