Optical instrument

Details Optical instrument Optical instrument

1986-10-28

1988-07-26

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250339, G01N 2135

Patent

active

047602589

ABSTRACT:
In an IR-FR- spectrometer, a light beam (10) is guided from a source to a detector (31) and is passed, in a first mode of operation, by means of first optical means (12, 19, 20) through a sample to be measured (28) and, in a second mode of operation, by second optical means (12, 22, 21) through a reference sample (32). The first and second optical means comprise a common mirror element (12) having at least first and second mirror surfaces (13, 14, 15, 16) which are inclined relative to each other. The mirror surfaces abut in at least one point. There is provided means for moving the mirror element (12) relative to the light beam so that during such relative movement the impinging point of the light beam (10) is displace from the first mirror surface (13), over onto the second mirror surface (14).

REFERENCES:
patent: 3488122 (1970-01-01), Roussopoulus
patent: 4371785 (1983-02-01), Pederson
patent: 4422766 (1983-12-01), Skukalek
patent: 4525627 (1985-06-01), Krempl et al.

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