Laser measuring apparatus

Details Laser measuring apparatus Laser measuring apparatus

1990-01-12

1991-10-15

Scott, Jr., Leon

Coherent light generators

Particular temperature control

372 92, 21913762, H01S 304

Patent

active

050581198

ABSTRACT:
A laser measuring apparatus is provided with an air stirring means for making the temperature of the air in the casing uniform at every portion. The linearity of laser light in the casing is maintained regardless of generation of heat or cold transmitted to the casing, and the optical path is maintained as predetermined, thereby producing a measuring result including no error caused by the influence of heat.

REFERENCES:
patent: 4009965 (1977-03-01), Pryor
patent: 4573159 (1986-02-01), Aagano et al.
patent: 4697269 (1987-09-01), Ohara

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