Patent US3435956A successfully refreshed from Google Patents.
US5030985A
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Exposure balance arrangement for an image fixing device
Assignee: Eastman Kodak Co
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Filing: 1990-08-17
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Granted: 1991-07-09
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Expires: 2010-08-17
Abstract
Abstract An exposure balance arrangement for a film or electronic camera employs a matrix metering full frame CCD which looks at an image and bit maps pixel locations of high light intensity. This information is used to selectively darken areas on an X-Y addressable electronic shutter through which the image passes.
Inventors
- 👤 Robert S. Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:23
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/091; G03B7/093; G03B7/28; H; H04; H04N; H04N23/00; H04N23/70; H04N23/71; H04N23/73; H04N23/75
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
136 words
An exposure balance arrangement for an image fixing device comprising: a matrix of light detectors arranged as a plurality of pixel locations for receiving a light image and for sensing pixel locations having a light intensity at least as large as a predetermined level; means for bit mapping pixel locations, sensed by the matrix of light detectors, having high light intensities at least as large as the predetermined level; an X-Y addressable shutter having a plurality of individual addressable light valve cells corresponding to the plurality of pixel locations of the matrix of light detectors; and means for addressing and darkening selective ones of the individual cells of the X-Y addressable shutter corresponding to pixel locations of the matrix of light detectors sensed as having a light intensity at least as large as the predetermined level.
Claim 2
Dependent Claim
136 words
An exposure balance arrangement for an image fixing device comprising: a matrix of light detectors arranged as a plurality of pixel locations for receiving a light image and for sensing pixel locations having a light intensity at least as large as a predetermined level; means for bit mapping pixel locations, sensed by the matrix of light detectors, having high light intensities at least as large as the predetermined level; an X-Y addressable shutter having a plurality of individual addressable light valve cells corresponding to the plurality of pixel locations of the matrix of light detectors; and means for addressing and darkening selective ones of the individual cells of the X-Y addressable shutter corresponding to pixel locations of the matrix of light detectors sensed as having a light intensity at least as large as the predetermined level.
Claim 3
Dependent Claim
21 words
An arrangement according to claim 1, wherein the matrix of light detectors comprises a matrix metering full frame charge coupled device.
Claim 4
Dependent Claim
29 words
An arrangement according to claim 1, wherein each individual cell of the X-Y addressable shutter corresponds to one of the pixel locations of the light detectors of the matrix.
Claim 5
Dependent Claim
36 words
An arrangement according to claim 1 further comprising means for focusing the light image on both the matrix of light detectors and an image fixing means for fixing the image passed by the X-Y addressable shutter.
Claim 6
Dependent Claim
14 words
An arrangement according to claim 4, wherein the image fixing means is photographic film.
Claim 7
Dependent Claim
18 words
An arrangement according to claim 5, wherein the image fixing means is an image capturing charge coupled device.
Claim 8
Dependent Claim
15 words
An arrangement according to claim 1, wherein the X-Y addressable shutter is an electronic shutter.
Claim 9
Dependent Claim
15 words
An arrangement according to claim 1, wherein the image fixing device is a photographic camera.
Claim 10
Dependent Claim
15 words
An arrangement according to claim 1, wherein the image fixing device is an electronic camera.
Claim 11
Dependent Claim
104 words
An exposure balance arrangement for an image fixing device comprising: a matrix metering full frame charge coupled device, having a plurality of pixel locations, for receiving an image and sensing pixel locations of high light intensity; means for bit mapping pixel locations of high light intensity sensed by the matrix meter full frame charge coupled device; an X-Y addressable electronic shutter having a plurality of individual addressable light valve cells, and means for selectively darkening selective ones of the individual cells of the electronic shutter corresponding to pixel location of the matrix metering full frame charge coupled device sensed as having high light intensity.
Claim 12
Dependent Claim
104 words
An exposure balance arrangement for an image fixing device comprising: a matrix metering full frame charge coupled device, having a plurality of pixel locations, for receiving an image and sensing pixel locations of high light intensity; means for bit mapping pixel locations of high light intensity sensed by the matrix meter full frame charge coupled device; an X-Y addressable electronic shutter having a plurality of individual addressable light valve cells, and means for selectively darkening selective ones of the individual cells of the electronic shutter corresponding to pixel location of the matrix metering full frame charge coupled device sensed as having high light intensity.
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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) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |