Apparatus for reducing, enlarging and projecting image informati

Details Apparatus for reducing, enlarging and projecting image informati Apparatus for reducing, enlarging and projecting image informati

1991-06-12

1993-11-09

Cuchlinski, Jr., William A.

Optics: image projectors

Composite projected image

Plural projection paths with single light source

353 20, 353 82, 359 40, G02F 113, G03B 2128

Patent

active

052607283

ABSTRACT:
A light beam (30) including a random polarization and radiated from a light source, such as laser oscillator (6) is separated into P wave polarization light beam and S wave polarization light beam by a beam splitter 33. After modulated by image information representative of characters to be printed, both the P and S wave polarization beams are merged and the resultant light beam is projected on the surface of a workpiece for marking a pattern.

REFERENCES:
patent: 3893758 (1975-07-01), Hunzinger et al.
patent: 3961334 (1976-06-01), Whitby et al.
patent: 4345258 (1982-08-01), Tsai et al.
patent: 4707584 (1987-11-01), Kimbara
patent: 4723077 (1988-02-01), Wu
patent: 4818835 (1989-04-01), Kuwabara et al.
patent: 5028121 (1991-07-01), Baur et al.
patent: 5042921 (1991-08-01), Sato et al.

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