Spectrophotometer

Details Spectrophotometer Spectrophotometer

1988-11-14

1990-01-23

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01J 318, G01J 342

Patent

active

048954454

ABSTRACT:
A spectrophotometer for operating in the reflection or transmission mode includes a collecting lens for directing non-collimated light from the sample being analyzed onto a diffraction grating. An imaging lens focuses diffracted light onto an array of sensors. Because the collecting lens directs non-collimated light at the grating, a substantially linear spectrum can be imaged on the array.

REFERENCES:
patent: 3874799 (1975-04-01), Isaacs et al.
patent: 4060327 (1977-11-01), Jacobowitz et al.
patent: 4076421 (1978-02-01), Kishner
patent: 4544271 (1985-10-01), Yamamoto
patent: 4605306 (1986-08-01), Kaffka et al.
patent: 4613233 (1986-09-01), Wilson
patent: 4636074 (1987-01-01), Levy et al.
patent: 4652761 (1987-03-01), Kerr et al.

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