Scanning optical apparatus

Details Scanning optical apparatus Scanning optical apparatus

Filed on

1990-09-14

Date issued

1993-06-08

Examiner

Coles, Sr., Edward L.

Patent Class

Facsimile and static presentation processing

SubClass

Facsimile

SubSubClass

Picture signal generator

Other Related Categories

358474, 358480, 358481, H04N 104

Type

Patent

Status

active

Patent number

052184617

Description

ABSTRACT:
A scanning optical apparatus has a laser beam source for emitting a laser beam, a scanning deflector for deflecting and scanning the laser beam in a principal scanning plane, a scanning lens for imaging the deflected laser beam on a scanning surface to form a spot thereon, an imaging lens for forming the laser beam from the laser beam source into a line spread function image in an auxiliary scanning plane that is perpendicular to the principal scanning plane before the laser beam is made incident to the scanning deflector, a static deflector which is located on the line spread function image and which is adapted to guide the beam from the light source to the scanning deflector and guide the reflected beam from the scanning deflector to the scanning lens, and a holding member for holding at least the laser beam source, the imaging lens and the static deflector separately from other optical elements.

REFERENCES:
patent: 4896222 (1990-01-01), Fukai
patent: 4961079 (1990-10-01), Owens

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