US5371384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state imaging device having a light emitting diode
Assignee: Sony Corp
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Filing: 1993-06-24
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Granted: 1994-12-06
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Expires: 2013-06-24
Abstract
Abstract Light emitting devices are formed on a surface of a solid state imaging device and are used as illumination light sources. In a solid state imaging device for use in an electro-endoscope or the like, an illumination light source need not be provided independently of the solid state imaging device. Hence, the electro-endoscope can be miniaturized and simplified in structure.
Inventors
- 👤 Kazushi Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:51
CPC Classifications
H; H10; H10H; H10H29/00; H10H29/10; H10H29/14; H10H29/142; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/15; H10F39/153; H10H20/00; H10H20/80; H10H20/85; H10H20/852; H10H20/854
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
94 words
A solid state imaging device comprising: at least one light emitting device; light directivity control means provided above said light emitting device for controlling an emitted light so that said emitted light is prevented from being introduced to an image area of said solid state imaging device; and said light directivity control means being composed of a plurality of layers, said plurality of layers including a first layer provided above said light emitting device and having a higher index of refraction than that of a second layer which is provided around said first layer.
Claim 2
Dependent Claim
94 words
A solid state imaging device comprising: at least one light emitting device; light directivity control means provided above said light emitting device for controlling an emitted light so that said emitted light is prevented from being introduced to an image area of said solid state imaging device; and said light directivity control means being composed of a plurality of layers, said plurality of layers including a first layer provided above said light emitting device and having a higher index of refraction than that of a second layer which is provided around said first layer.
Claim 3
Dependent Claim
100 words
A solid state imaging device, comprising: an image area comprising a plurality of image sensors on a surface of a semiconductor body each serving as a pixel, a plurality of vertical signal lines, a horizontal signal line, and an output section; an illuminating means for illuminating an object which faces said surface of the semiconductor body and which is sensed by said image area, said illuminating means being provided on said same surface of the semiconductor body at which said image area is provided; and said illuminating means being located at least at both opposite sides of said image area.
Claim 4
Dependent Claim
100 words
A solid state imaging device, comprising: an image area comprising a plurality of image sensors on a surface of a semiconductor body each serving as a pixel, a plurality of vertical signal lines, a horizontal signal line, and an output section; an illuminating means for illuminating an object which faces said surface of the semiconductor body and which is sensed by said image area, said illuminating means being provided on said same surface of the semiconductor body at which said image area is provided; and said illuminating means being located at least at both opposite sides of said image area.
Claim 5
Dependent Claim
16 words
A solid state imaging device according to claim 2 wherein said illuminating means comprises a diode.
Claim 6
Dependent Claim
31 words
A solid state imaging device according to claim 2 wherein said illuminating means is provided on said surface of said semiconductor body by use of a layer containing said illuminating means.
Claim 7
Dependent Claim
18 words
A solid state imaging device according to claim 2 wherein said illuminating means is adjacent said image area.
Claim 8
Dependent Claim
50 words
A solid state imaging device according to claim 2 wherein said illuminating means comprises a plurality of light emitting devices, a first one of said light emitting devices emitting a first light of a color different from a second light emitted by a second one of said light emitting devices.
Claim 9
Dependent Claim
32 words
A solid state imaging device according to claim 6 further comprising a third of said light emitting devices emitting a third light of a color different from said first and second lights.
Claim 10
Dependent Claim
25 words
A solid state imaging device according to claim 7 wherein said colors of said first, second, and third lights are respectively green, red, and blue.
Claim 11
Dependent Claim
39 words
A solid state imaging device according to claim 2 further comprising light intercepting means located between said image area and said illuminating means for preventing a light emitted by said illuminating means from being introduced to said image area.
Claim 12
Dependent Claim
28 words
A solid state imaging device according to claim 9 wherein said light intercepting means comprises a trench provided in a semiconductor body and filled with a metallic material.
Claim 13
Dependent Claim
22 words
A solid state imaging device according to claim 9 wherein said light intercepting means comprises a projection provided on a semiconductor body.
Claim 14
Dependent Claim
39 words
A solid state imaging device according to claim 2 further comprising light directivity control means provided above said illuminating means for controlling an emitted light so that said emitted light is prevented from being introduced to said image area.
Claim 15
Dependent Claim
19 words
A solid state imaging device according to claim 12 wherein said light directivity control means comprises a micro lens.
Claim 16
Dependent Claim
54 words
A solid state imaging device according to claim 12 wherein said light directivity control means is comprised of a plurality of layers, said plurality of layers including a first layer provided above said light emitting device and having a higher index of refraction than that of a second layer provided around said first layer.
Claim 17
Dependent Claim
52 words
A solid state imaging device according to claim 12 wherein said light directivity control means comprises a plurality of layers, said plurality of layers including a first layer provided above said light emitting device and having a lower index of refraction than that of a second layer provided on said first layer.
Claim 18
Dependent Claim
18 words
A solid state imaging device according to claim 2 wherein said solid state imaging device comprises an electro-endoscope.
Claim 19
Dependent Claim
62 words
A solid state imaging device for obtaining an image of an object, comprising: a semiconductor substrate having a solid state CCD imaging array at a surface thereof; and a plurality of light emitting diodes at said semiconductor surface at opposite sides of said imaging array for illuminating said object when said object faces toward and is in front of said semiconductor surface.
Claim 20
Dependent Claim
62 words
A solid state imaging device for obtaining an image of an object, comprising: a semiconductor substrate having a solid state CCD imaging array at a surface thereof; and a plurality of light emitting diodes at said semiconductor surface at opposite sides of said imaging array for illuminating said object when said object faces toward and is in front of said semiconductor surface.
Claim 21
Dependent Claim
63 words
An electro-endoscope solid state imaging device for obtaining an image of an object, comprising: a semiconductor substrate having a solid state CCD imaging array at a surface thereof; and a plurality of light emitting diodes at said semiconductor surface at opposite sides of said imaging array for illuminating said object when said object faces toward and is in front of said semiconductor surface.
Claim 22
Dependent Claim
63 words
An electro-endoscope solid state imaging device for obtaining an image of an object, comprising: a semiconductor substrate having a solid state CCD imaging array at a surface thereof; and a plurality of light emitting diodes at said semiconductor surface at opposite sides of said imaging array for illuminating said object when said object faces toward and is in front of said semiconductor surface.
References Cited (Backward Citations)
US3750114A
Cited
US3806729A
Cited
US3849651A
Cited
US3973136A
Cited
USRE31612E
Cited
JPS61204989A
Cited
US4879250A
Cited
US5266828A
Cited
JPH02238679A
Cited
US5130761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-05 | 1998-06-06 | 1998-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-05 | 2002-06-06 | 2002-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-05 | 2006-06-06 | 2006-12-06 | $7700.00 | Window Closed / Lapsed |