Optical scanner

Details Optical scanner Optical scanner

1991-11-12

1992-10-20

Arnold, Bruce Y.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359223, 359668, 359710, G02B 2608, G02B 304

Patent

active

051575345

ABSTRACT:
An optical scanner has a light source device; a lens for converging a laser beam emitted from the light source device; a deflector having a mirror face which is integrally formed with the shaft of a scanner motor and is constructed by one convex spherical or cylindrical mirror face having a radius R and approximately arranged in the vicinity of a center of rotation of the shaft of the scanner motor; and a scanning face scanned by a light beam deflected by the deflector. The optical scanner satisfies a predetermined relation with respect to the radius R when a distance L.sub.O from a deflecting point to the scanning face at an angle of rotation of the deflector set to zero is equal to a distance L from the deflecting point to the scanning face at the angle of rotation of the deflector set to .theta.. The predetermined relation is provided by the following formula:

REFERENCES:
patent: 4253724 (1981-03-01), Minoura et al.
patent: 4310757 (1982-01-01), Check, Jr. et al.
patent: 4578688 (1986-03-01), Okuno
patent: 4627685 (1986-12-01), Sakuma
patent: 4720632 (1988-01-01), Kaneko
patent: 4796964 (1989-01-01), Connell et al.
patent: 5066083 (1991-11-01), Makino et al.

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