Rotatable polygonal mirror unit having adjustable mirrors

Details Rotatable polygonal mirror unit having adjustable mirrors Rotatable polygonal mirror unit having adjustable mirrors

1997-09-12

1999-06-29

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359198, 359855, 359865, G02B 2608

Patent

active

059176407

ABSTRACT:
An apparatus (5) for measuring the dimensions of an object (1) where a measuring carriage (6) moves the object at a distance thereabove. A polygonal mirror unit (32) receives laser light (16) and reflects it in a fan-shaped form toward a stationary angled mirror unit (37,38) which directs the light towards a double-curved stationary mirror unit (39) which reflects the beam onto the object. Mirrors (40) of the polygonal unit are adjustable.

REFERENCES:
patent: 3529884 (1970-09-01), Ives et al.
patent: 4684252 (1987-08-01), Makiguchi et al.
patent: 4692629 (1987-09-01), Nakamura
patent: 4996440 (1991-02-01), Nordbryhn
patent: 5005928 (1991-04-01), Suzuki et al.
patent: 5687017 (1997-11-01), Katoh et al.

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