Beam shaping optical system

Details Beam shaping optical system Beam shaping optical system

1998-01-09

2000-10-03

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359837, G02B 2608

Patent

active

061281190

ABSTRACT:
Disclosed is a multi-beam optical system, which has a light source having a plurality of light emitting portions from which a plurality of light beams are emitted, respectively; a collimating lens which collimates the plurality of light beams into a plurality of parallel light beams; a beam shaping optical system including at least one wedge prism, the beam shaping optical system shaping cross section of the plurality of parallel beams; an image forming optical system which converges the plurality of parallel beams transmitted through the beam shaping optical system. In such a multi-beam optical system, a plurality of light emitting portions are aligned in a direction perpendicular to a principal section of the wedge prism.

REFERENCES:
patent: 4872747 (1989-10-01), Jalkio et al.
patent: 4904068 (1990-02-01), Tatsuno et al.
patent: 5130840 (1992-07-01), Iima et al.
patent: 5189546 (1993-02-01), Iizuka
patent: 5194981 (1993-03-01), Morimoto
patent: 5208456 (1993-05-01), Appel et al.
patent: 5604622 (1997-02-01), Iizuka et al.
patent: 5610647 (1997-03-01), Takada

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