Spectrophotometer with photodiode array

Details Spectrophotometer with photodiode array Spectrophotometer with photodiode array

1976-09-23

1977-10-18

Evans, F. L.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

350166, 356100, G01J 350

Patent

active

040543897

ABSTRACT:
In a spectrophotometer, light that has passed through, or been reflected from, a sample is carried by a fiberoptic bundle. The output end of the fiberoptic bundle is bonded to one side of a wedge-shaped linear variable interference filter. The other side of the filter is bonded to an array of photodiodes. Because each photodiode receives light that has passed through a different portion of the filter, each photodiode will respond to light of a different wavelength.

REFERENCES:
patent: 3869212 (1975-03-01), Burcher
patent: 3929398 (1975-12-01), Bates

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