Scanning optical apparatus

Details Scanning optical apparatus Scanning optical apparatus

1997-04-21

1999-10-05

Ton, My-Trang Nu

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

250234, 359205, G02B 2608

Patent

active

059633565

ABSTRACT:
A scanning optical apparatus includes a light source portion, a deflector for deflecting a beam from the light source portion, a first optical element for converting the beam from the light source portion into a nearly parallel beam, a second optical element for focusing the nearly parallel beam into a linear image on a deflection/reflection facet of the deflector, a third optical element for converging a beam deflected by the deflector on a predetermined surface, a detecting element for detecting the beam deflected by the deflector, and a fourth optical element for guiding the beam deflected by the deflector to the detecting element, wherein the fourth optical element and the second optical element are integrally formed.

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patent: 5371608 (1994-12-01), Muto et al.
patent: 5412501 (1995-05-01), Fisli

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