Patent US5101285A successfully refreshed from Google Patents.
US5101285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric conversion device having an improved illuminating system and information processing apparatus mounting the device
Assignee: Canon Inc
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Filing: 1990-07-23
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Granted: 1992-03-31
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Expires: 2010-07-23
Abstract
Abstract A photoelectric conversion device includes a photosensor including a plurality of photoelectric conversion elements and a substrate having a transparent portion for transmitting light for illuminating an original bearing information and provided with the plurality of photoelectric conversion elements, and a light source for emitting light for illuminating the original in which a plurality of light-emitting sources are arranged. The device further includes a light diffuser between the photosensor and the light source.
Inventors
- 👤 Tatsundo Kawai
- 👤 Tetsuya Shimada
- 👤 Masashi Kitani
- 👤 Osamu Hamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:11
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/02815; H04N1/02845; H04N1/02865; H04N1/02885; H04N1/0289; H04N1/03; H04N1/031; H04N1/0313; H04N1/0315; H04N1/0316
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
73 words
A photoelectric conversion device comprising: a photosensor comprising a plurality of photoelectric conversion elements and a substrate having a transparent portion for transmitting light for illuminating an original bearing information and provided with said plurality of photoelectric conversion elements; and a light source for emitting light for illuminating the original in which a plurality of light-emitting sources are arranged, said device further comprising: light diffusing means between said photosensor and said light source.
Claim 2
Dependent Claim
73 words
A photoelectric conversion device comprising: a photosensor comprising a plurality of photoelectric conversion elements and a substrate having a transparent portion for transmitting light for illuminating an original bearing information and provided with said plurality of photoelectric conversion elements; and a light source for emitting light for illuminating the original in which a plurality of light-emitting sources are arranged, said device further comprising: light diffusing means between said photosensor and said light source.
Claim 3
Dependent Claim
27 words
A photoelectric conversion device according to claim 1, wherein said light diffusing means diffuses light in a direction of arrangement of said plurality of photoelectric conversion elements.
Claim 4
Dependent Claim
20 words
A photoelectric conversion device according to claim 1, wherein said light diffusing means comprises a transparent member having uneven surface.
Claim 5
Dependent Claim
25 words
A photoelectric conversion device according to claim 1, wherein said light diffusing means comprises a transparent member having projections and recesses whose pitches are irregular.
Claim 6
Dependent Claim
25 words
A photoelectric conversion device according to claim 1, wherein said light diffusing means comprises a transparent member having projections and recesses whose pitch is regular.
Claim 7
Dependent Claim
37 words
A photoelectric conversion device according to claim 1, wherein said light diffusing member comprises a transparent member having projections and recesses made of grooves extending in a direction crossing a direction of arrangement of said light-emitting sources.
Claim 8
Dependent Claim
31 words
A photoelectric conversion device according to claim 1, wherein said light diffusing means comprises projections and recesses provided on a light-incident side and on a light-exit side of a transparent member.
Claim 9
Dependent Claim
18 words
A photoelectric conversion device according to claim 1, wherein said photosensor includes electric-charge storage elements and switching elements.
Claim 10
Dependent Claim
24 words
A photoelectric conversion device according to claim 1, wherein said substrate of said photosensor is provided on another transparent substrate including a driving circuit.
Claim 11
Dependent Claim
15 words
A photoelectric conversion device according to claim 1, wherein said light-emitting sources comprise light-emitting diodes.
Claim 12
Dependent Claim
16 words
A photoelectric conversion device according to claim 1, wherein said light source includes a condenser-lens member.
Claim 13
Dependent Claim
25 words
A photoelectric conversion device according to claim 1, wherein each of said photoelectric conversion elements includes a layer made of a non-single-crystalline material including silicon.
Claim 14
Dependent Claim
16 words
A photoelectric conversion device according to claim 12, wherein said non-single-crystalline material consists of amorphous silicon.
Claim 15
Dependent Claim
32 words
An information processing apparatus comprising the photoelectric conversion device according to claim 1, conveying means for conveying an original, and control means for controlling said photoelectric conversion device and said conveying means.
Claim 16
Dependent Claim
12 words
An information processing apparatus according to claim 14, further comprising recording means.
Claim 17
Dependent Claim
26 words
An information processing apparatus according to claim 15, wherein said recording means comprises an ink-jet recording head for performing recording by discharging ink utilizing thermal energy.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-31 | 1995-09-30 | 1996-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-31 | 1999-09-30 | 2000-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-31 | 2003-09-30 | 2004-03-31 | $7700.00 | Window Closed / Lapsed |