US5121225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric converter and image reading apparatus mounting the same
Assignee: Canon Inc
•
Filing: 1990-02-20
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Granted: 1992-06-09
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Expires: 2010-02-20
Abstract
Abstract A photoelectric converter includes a transparent substrate having a photoelectric converting element provided on a surface opposing a document relating to reading of image information, a transparent support for supporting the substrate, and a light source provided on a surface of the support opposite to a supporting surface for the substrate. Light emitted from the light source is radiated on a document through the support and the substrate, and reflected light is received by the photoelectric converting element.
Inventors
- 👤 Masayoshi Murata
- 👤 Katsumi Komiyama
- 👤 Tatsundo Kawai
- 👤 Makoto Ogura
- 👤 Hiroo Ichihashi
- 👤 Osamu Hamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:37
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/02815; H04N1/02845; H04N1/03; H04N1/031; H10; H10F; H10F77/00; H10F77/30; H10F77/306; H10F77/331; H10F77/334
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
159 words
A photoelectric converter which comprises: photoelectric converting means, including: a first substrate which is insulative and transparent, a second substrate which is larger than said first substrate and which is insulative and transparent, said second substrate being provided under a lower surface of said first substrate, and a photoelectric converting element provided on an upper surface of said first substrate; a light source provided below a lower surface of said second substrate for emitting illumination light through said first and second substrates toward an original that includes image information, the illumination light being reflected off of a surface of the original such that the reflected light is incident on said photoelectric converting element; and a wiring member, for electrically connecting an external circuit to said photoelectric converting element, said wiring member being formed on an upper surface of said second substrate such that at least a part of said wiring member is provided between said first and second substrates.
Claim 2
Dependent Claim
159 words
A photoelectric converter which comprises: photoelectric converting means, including: a first substrate which is insulative and transparent, a second substrate which is larger than said first substrate and which is insulative and transparent, said second substrate being provided under a lower surface of said first substrate, and a photoelectric converting element provided on an upper surface of said first substrate; a light source provided below a lower surface of said second substrate for emitting illumination light through said first and second substrates toward an original that includes image information, the illumination light being reflected off of a surface of the original such that the reflected light is incident on said photoelectric converting element; and a wiring member, for electrically connecting an external circuit to said photoelectric converting element, said wiring member being formed on an upper surface of said second substrate such that at least a part of said wiring member is provided between said first and second substrates.
Claim 3
Dependent Claim
31 words
A converter according to claim 1, wherein a light-shielding portion is formed between said first and second substrates except for an optical path portion for light emitted from said light source.
Claim 4
Dependent Claim
36 words
A converter according to claim 1, wherein said photoelectric converting means includes a light-adjusting portion, at least a part of said light-adjusting portion being formed by using the same material as that of said wiring member.
Claim 5
Dependent Claim
22 words
A converter according to claim 3, wherein said light-adjusting portion is pattern-formed by the same step as that of said wiring member.
Claim 6
Dependent Claim
22 words
A converter according to claim 3, wherein at least a part of said wiring member is commonly used for said light-adjusting portion.
Claim 7
Dependent Claim
20 words
A converter according to claim 1, wherein said light-adjusting member is held at a constant potential via said wiring member.
Claim 8
Dependent Claim
30 words
A converter according to claim 1, wherein said light-shielding portion and said light-adjusting portion are formed of the same material and held at a constant potential via said wiring member.
Claim 9
Dependent Claim
20 words
A converter according to claim 1, wherein said light-shielding member is held at a constant potential via said wiring portion.
Claim 10
Dependent Claim
18 words
A converter according to claim 1, wherein said wiring member includes a wiring held at a constant potential.
Claim 11
Dependent Claim
27 words
A converter according to claim 1, wherein a member serving as both a light-shielding portion and a light-adjusting portion is formed between said first and second substrates.
Claim 12
Dependent Claim
21 words
A converter according to claim 1, wherein said light-shielding portion includes a conductive member and is held at a constant potential.
Claim 13
Dependent Claim
14 words
A converter according to claim 11, wherein the constant potential is a ground potential.
Claim 14
Dependent Claim
18 words
A converter according to claim 1, wherein a light-adjusting member is formed between said first and second substrates.
Claim 15
Dependent Claim
20 words
A converter according to claim 1, further comprising a light-shielding portion and a light-adjusting portion formed of the same member.
Claim 16
Dependent Claim
16 words
A converter according to claim 13, wherein said light-adjusting member is held at a constant potential.
Claim 17
Dependent Claim
26 words
A converter according to claim 1, wherein said light-shielding portion and said light-adjusting portion are formed of the same material and held at a constant potential.
Claim 18
Dependent Claim
23 words
A converter according to claim 13, wherein said light-adjusting portion is formed into a pattern for uniforming a variation in the light quantity.
Claim 19
Dependent Claim
29 words
A converter according to claim 1, wherein a gap is formed in an optical path portion for light emitted from said light source between said first and second substrates.
Claim 20
Dependent Claim
28 words
A converter according to claim 18, wherein said gap is formed by arranging an adhesive layer between said first and second substrates except for said optical path portion.
Claim 21
Dependent Claim
15 words
A converter according to claim 18, wherein said gap is formed by a light-shielding portion.
Claim 22
Dependent Claim
31 words
A converter according to claim 1, wherein a spacer layer is formed on said photoelectric converting element, and said document is placed in contact with the surface of said spacer layer.
Claim 23
Dependent Claim
22 words
A converter according to claim 1, wherein a semiconductor IC for driving said photoelectric converting element is formed on said second substrate.
Claim 24
Dependent Claim
22 words
A converter according to claim 22, wherein said IC outputs a signal for driving a drive switch for said photoelectric converting element.
Claim 25
Dependent Claim
19 words
A converter according to claim 22, wherein said IC is formed on an end portion of said second substrate.
Claim 26
Dependent Claim
210 words
A photoelectric converter which comprises: photoelectric converting means, including: a first substrate which is insulative and transparent, and including a photoelectric converting element provided on an upper surface of said first substrate, a second substrate which is larger than said first substrate and which is insulative and transparent, said second substrate being provided under a lower surface of said first substrate and including a wiring portion for electrically connecting an external circuit to said photoelectric converting element, said wiring portion being formed on an upper surface of said second substrate such that at least a part of said wiring portion is provided between said first and second substrates; illuminating means provided under a lower surface of said second substrate for radiating light through said first and second substrates toward a document carrying image information, the radiated light being reflected off of a surface of the document such that the reflected light is incident on said photoelectric converting element; and supporting means for supporting said second substrate and said illuminating means, wherein said illuminating means includes a connecting member for electrically connecting said wiring portion provided on said second substrate to an apparatus mounting said converter, and said wiring portion and said connecting member are electrically connected by a wiring member.
Claim 27
Dependent Claim
210 words
A photoelectric converter which comprises: photoelectric converting means, including: a first substrate which is insulative and transparent, and including a photoelectric converting element provided on an upper surface of said first substrate, a second substrate which is larger than said first substrate and which is insulative and transparent, said second substrate being provided under a lower surface of said first substrate and including a wiring portion for electrically connecting an external circuit to said photoelectric converting element, said wiring portion being formed on an upper surface of said second substrate such that at least a part of said wiring portion is provided between said first and second substrates; illuminating means provided under a lower surface of said second substrate for radiating light through said first and second substrates toward a document carrying image information, the radiated light being reflected off of a surface of the document such that the reflected light is incident on said photoelectric converting element; and supporting means for supporting said second substrate and said illuminating means, wherein said illuminating means includes a connecting member for electrically connecting said wiring portion provided on said second substrate to an apparatus mounting said converter, and said wiring portion and said connecting member are electrically connected by a wiring member.
Claim 28
Dependent Claim
23 words
An image reading apparatus mounting a photoelectric converter according to claim 1 and comprising control means for controlling driving of said photoelectric converter.
Claim 29
Dependent Claim
15 words
An apparatus with a recording function according to claim 26, further comprising a recording head.
Claim 30
Dependent Claim
19 words
An apparatus with a recording function according to claim 27, wherein said recording head is an ink-jet recording head.
Claim 31
Dependent Claim
21 words
An apparatus with a recording function according to claim 28, wherein said recording head injects an ink by using heat energy.
Claim 32
Dependent Claim
23 words
An image reading apparatus mounting a photoelectric converter according to claim 25 and comprising control means for controlling driving of said photoelectric converter.
Claim 33
Dependent Claim
15 words
An apparatus with a recording function according to claim 30, further comprising a recording head.
Claim 34
Dependent Claim
19 words
An apparatus with a recording function according to claim 31, wherein said recording head is an ink-jet recording head.
Claim 35
Dependent Claim
21 words
An apparatus with a recording function according to claim 32, wherein said recording head injects an ink by using heat 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) | 1995-06-09 | 1995-12-09 | 1996-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-09 | 1999-12-09 | 2000-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-09 | 2003-12-09 | 2004-06-09 | $7700.00 | Window Closed / Lapsed |