US5436493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color imaging charge-coupled array with multiple photosensitive regions
Assignee: Xerox Corp
•
Filing: 1994-08-18
•
Granted: 1995-07-25
•
Expires: 2014-08-18
Abstract
Abstract A photosensitive apparatus comprises a single crystal structure, wherein different regions of the structure are of different compositions. A first photosensitive region comprises a material adapted to generate electron-hole pairs in an area thereof exposed to light within a predetermined first range of wavelength, and a second photosensitive region, comprises a material adapted to generate electron-hole pairs in an area thereof exposed to light within a predetermined second range of wavelength different from the first range of wavelength.
Inventors
- 👤 David A. Mantell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:56
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/15; H10F39/156; B; B01; B01J; B01J2219/00; B01J2219/00274; B01J2219/00277; B01J2219/00351; B01J2219/00436; C; C40; C40B; C40B60/00; C40B60/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
120 words
A photosensitive apparatus having a single crystal structure and defining a light-receiving surface, comprising: a first photosensitive region of the light-receiving surface, including a first material sensitive to light within a predetermined first range of wavelength and generating electron-hole pairs in an area thereof in response to being exposed to light within the predetermined first range of wavelength; and a second photosensitive region of the light-receiving surface, coplanar with the first photosensitive region of the light-receiving surface, including a second material sensitive to light within a predetermined second range of wavelength different from the first range of wavelength and generating electron-hole pairs in an area thereof in response to being exposed to light within the predetermined second range of wavelength.
Claim 2
Dependent Claim
120 words
A photosensitive apparatus having a single crystal structure and defining a light-receiving surface, comprising: a first photosensitive region of the light-receiving surface, including a first material sensitive to light within a predetermined first range of wavelength and generating electron-hole pairs in an area thereof in response to being exposed to light within the predetermined first range of wavelength; and a second photosensitive region of the light-receiving surface, coplanar with the first photosensitive region of the light-receiving surface, including a second material sensitive to light within a predetermined second range of wavelength different from the first range of wavelength and generating electron-hole pairs in an area thereof in response to being exposed to light within the predetermined second range of wavelength.
Claim 3
Dependent Claim
39 words
An apparatus as in claim 1, wherein said first material comprises aluminum and gallium in a first relative proportion and said second material comprises aluminum and gallium in a second relative proportion not equal to the first relative proportion.
Claim 4
Dependent Claim
58 words
An apparatus as in claim 1, further comprising a third photosensitive region of the light-receiving surface including a third material in the crystal structure, generating electron-hole pairs in an area thereof in response to being exposed to light within a predetermined third range of wavelength different from the first range of wavelength and the second range of wavelength.
Claim 5
Dependent Claim
40 words
An apparatus as in claim 1, further comprising a plurality of electrodes associated with the first photosensitive region and the second photosensitive region, for transferring charge packets of electron-hole pairs within the first photosensitive region and the second photosensitive region.
Claim 6
Dependent Claim
36 words
An apparatus as in claim 4, wherein a subset of electrodes associated with the first photosensitive region and the second photosensitive region are associated with photosites corresponding to picture elements for the recording of an image.
Claim 7
Dependent Claim
22 words
An apparatus as in claim 1, further comprising a non-photosensitive region in the crystal structure, retaining a charge packet of electron-hole pairs.
Claim 8
Dependent Claim
20 words
An apparatus as in claim 6, wherein the non-photosensitive region retains charge packets of electron-hole pairs in discrete locations thereof.
Claim 9
Dependent Claim
28 words
An apparatus as in claim 7, further comprising electrodes associated with selected locations within the non-photosensitive region, for transferring charge packets of electron-hole pairs within the non-photosensitive region.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-07-24 | 1999-01-23 | 1999-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-24 | 2003-01-23 | 2003-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-24 | 2007-01-23 | 2007-07-25 | $7700.00 | Window Closed / Lapsed |