EP0323850A2
Expired / Lapsed
EP
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A scanning optical apparatus
Assignee: Canon Inc
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Filing: 1989-01-05
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Granted: —
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Expires: 2009-01-05
Abstract
Abstract A scanning optical apparatus includes a light source, a modulator for intermittently modulating a beam from the light source or for modulating it in amplitude, imaging device for imaging the beam from the light source at predetermined position, a deflector for deflecting the beam from the light source in a predetermined direction, a photoreceptor for receiving the beam deflected by the deflector and modulated by the modulator, processing for processing a signal produced by the photoreceptor, and an adjusting device, responsive to the processing device, for adjusting an imaging position of the beam by the imaging device.
Inventors
- 👤 Toshinori Ando
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 13:41
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/113; H04N1/1135; H04N1/024; H04N1/032; H04N1/036
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A scanning optical apparatus, comprising: a light source; modulating means for intermittently modulating a beam from said light source or for modulating it in amplitude; imaging means for imaging the beam from said light source at predetermined position; deflecting means for deflecting the beam from the light source in a predetermined direction; light receiving means for receiving the beam deflected by said deflecting means and modulated by said modulating means; processing means for processing a signal produced by said light receiving means; and adjusting means, responsive to said processing means, for adjusting an imaging position of the beam by said imaging means.
Claim 2
Dependent Claim
102 words
A scanning optical apparatus, comprising: a light source; modulating means for intermittently modulating a beam from said light source or for modulating it in amplitude; imaging means for imaging the beam from said light source at predetermined position; deflecting means for deflecting the beam from the light source in a predetermined direction; light receiving means for receiving the beam deflected by said deflecting means and modulated by said modulating means; processing means for processing a signal produced by said light receiving means; and adjusting means, responsive to said processing means, for adjusting an imaging position of the beam by said imaging means.
Claim 3
Dependent Claim
29 words
An apparatus according to Claim 1, wherein said modulating means includes a grating having openings arranged in a predetermined direction, which is disposed adjacent to said light receiving means.
Claim 4
Dependent Claim
31 words
An apparatus according to Claim 2, wherein a distance between the grating and said light source is substantially the same as a distance from said light source to the predetermined position.
Claim 5
Dependent Claim
23 words
An apparatus according to Claim 1, wherein said light receiving means includes a plurality of light receiving portions arranged in the predetermined direction.
Claim 6
Dependent Claim
26 words
An apparatus according to Claim 4, wherein said modulating means includes a light emitting signal generator for transmitting a light emitting signal to said light source.
Claim 7
Dependent Claim
33 words
An apparatus according to Claim 5, wherein a distance between said light receiving means and said light source is substantially the same as a distance from said light source to the predetermined position.
Claim 8
Dependent Claim
19 words
An apparatus according to Claim 1, wherein said adjusting means controls said imaging means to control the imaging position.
References Cited (Backward Citations)
No citation records indexed.
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