Decoupled alignment axis for fold mirror adjustment

Details Decoupled alignment axis for fold mirror adjustment Decoupled alignment axis for fold mirror adjustment

2005-03-22

2005-03-22

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S900000

Reexamination Certificate

active

06870653

ABSTRACT:
A method of laser beam alignment in a laser scanning system comprising: providing an elongated planar mirror having left and right ends for directing a laser beam scan line to a scan line imaging region spaced from the mirror; detecting left and right spots of the laser beam scan line to determine whether the laser beam is aligned in the imaging region, and if it is not; first rotating the elongated mirror about a first axis extending along the scan line direction of the mirror until the right spot is detected; second rotating the mirror about a second axis located near the right end of the mirror, the second axis extending in the plane of the mirror at angle to the first axis until the left spot is detected.

REFERENCES:
patent: 5506719 (1996-04-01), Murakami et al.

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