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EP0159023A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Light beam scanning apparatus

Assignee: Fujifilm Holdings Corp
•
Filing: 1985-04-17
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Granted: —
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Expires: 2005-04-17
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Abstract

Abstract A light beam scanning apparatus comprises a plurality of semiconductor lasers, collimator lenses for converting a plurality of laser beams emitted by the semiconductor lasers into parallel rays, a common converging optical system for converging the laser beams to a common spot, and a common light deflector for deflecting and scanning the laser beams. Or, a light beam scanning apparatus comprises a plurality of semiconductor lasers positioned so that laser beams emitted by the semiconductor lasers focus on a common spot, a plurality of converging optical systems respectively positioned so as to correspond to the semiconductor lasers for converging the laser beams to the spot, and a common light deflector for deflecting and scanning the laser beams.

Inventors

  • 👤 Masaru C/O Fuji Photo Film Co. Ltd Noguchi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 14:09
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/02815; H04N1/0282; H04N1/0283; B; B23; B23K; B23K26/00; B23K26/08; B23K26/082; G; G02; G02B; G02B26/00; G02B26/08; G02B26/10

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 60 words
A light beam scanning apparatus comprising a plurality of semiconductor lasers, collimator lenses for converting a plurality of laser beams emitted by said semiconductor lasers into parallel rays, a common converging optical system for converging a plurality of said laser beams to a common spot, and a common light deflector for deflecting and scanning a plurality of said laser beams.
Claim 2
Dependent Claim 60 words
A light beam scanning apparatus comprising a plurality of semiconductor lasers, collimator lenses for converting a plurality of laser beams emitted by said semiconductor lasers into parallel rays, a common converging optical system for converging a plurality of said laser beams to a common spot, and a common light deflector for deflecting and scanning a plurality of said laser beams.
Claim 3
Dependent Claim 15 words
An apparatus as defined in Claim 1 wherein said light deflector is a galvanometer mirror.
Claim 4
Dependent Claim 16 words
An apparatus as defined in Claim 1 wherein said light deflector is a multi-face rotating mirror.
Claim 5
Dependent Claim 21 words
An apparatus as defined in Claim 1, 2 or 3 further comprising at least one cylindrical lens for eliminating scanning deviation.
Claim 6
Dependent Claim 65 words
A light beam scanning apparatus comprising a plurality of semiconductor lasers positioned so that laser beams emitted by said semiconductor lasers focus on a common spot, a plurality of converging optical systems respectively positioned so as to correspond to said semiconductor lasers for converging said laser beams to said spot, and a common light deflector for deflecting and scanning a plurality of said laser beams.
Claim 7
Dependent Claim 65 words
A light beam scanning apparatus comprising a plurality of semiconductor lasers positioned so that laser beams emitted by said semiconductor lasers focus on a common spot, a plurality of converging optical systems respectively positioned so as to correspond to said semiconductor lasers for converging said laser beams to said spot, and a common light deflector for deflecting and scanning a plurality of said laser beams.
Claim 8
Dependent Claim 15 words
An apparatus as defined in Claim 5 wherein said light deflector is a galvanometer mirror.

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