Patent US5657080A successfully refreshed from Google Patents.
US5657080A
Expired / Lapsed
US
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Photographing system for detecting and correcting camera shake
Assignee: Canon Inc
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Filing: 1994-01-24
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Granted: 1997-08-12
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Expires: 2014-01-24
Abstract
Abstract A photographing system for detecting and correcting camera shake in a camera having a photoelectric converting circuit for converting an optical image formed by an objective lens into an electrical signal includes a detecting device for detecting the shake of the photographing system. A deflecting device optically deflects the optical image on the basis of a detection signal from the detecting device. Shifting circuitry is provided for shifting an image received by the photoelectric converting circuitry, and a calculating circuit is provided for calculating the amount of shift of the image on the basis of the amount of deflection produced by the deflecting device. The photoelectric converting circuitry produces electrical signals corresponding to a plurality of color components, and the shifting circuitry processes at least one of the electrical signals on the basis of the result of the calculation by the calculating circuit. Thus, camera shake may be corrected by both optical and electrical correction.
Inventors
- 👤 Masayoshi Sekine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:28
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/60; H04N23/68; H04N23/681; H04N23/6812; H04N23/682; H04N23/683; H04N23/685; H04N23/686; H04N25/00; H04N25/60; H04N25/61; H04N25/611; G; G03; G03B; G03B2217/00; G03B2217/005; H04N2209/00; H04N2209/04; H04N2209/041; H04N2209/048
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
128 words
A phototaking system having converting means for converting an optical image formed by an objective lens into an electrical signal, said photographing system including: detecting means for detecting the shake of said photographing system; deflecting means for optically deflecting said optical image on the basis of a detection signal of said detecting means; means for shifting an image formed by the converting means; and calculating means for calculating the amount of shift of said image on the basis of the amount of deflection produced by said deflection means, wherein the converting means produces electrical signals corresponding to a plurality of color components, and wherein said shifting means processes at least one of said electrical signals on the basis of the result of the calculation by said calculation means.
Claim 2
Dependent Claim
128 words
A phototaking system having converting means for converting an optical image formed by an objective lens into an electrical signal, said photographing system including: detecting means for detecting the shake of said photographing system; deflecting means for optically deflecting said optical image on the basis of a detection signal of said detecting means; means for shifting an image formed by the converting means; and calculating means for calculating the amount of shift of said image on the basis of the amount of deflection produced by said deflection means, wherein the converting means produces electrical signals corresponding to a plurality of color components, and wherein said shifting means processes at least one of said electrical signals on the basis of the result of the calculation by said calculation means.
Claim 3
Dependent Claim
16 words
A phototaking system according to claim 1, wherein said deflecting means comprises a variable angle prism.
Claim 4
Dependent Claim
53 words
A phototaking system according to claim 1, further including producing means for producing the amount of shift of said image on the basis of a signal corresponding to the difference between the detection signal of said detecting means and a deflection signal corresponding to the amount of deflection produced by said deflection means.
Claim 5
Dependent Claim
16 words
A phototaking system according to claim 3, wherein said deflecting means comprises a variable angle prism.
Claim 6
Dependent Claim
120 words
A phototaking system for compensating for a fluctuation of an optical image produced by an objective lens, comprising: (a) detection means for detecting the fluctuation of the optical image; (b) deflecting means for optically deflecting the optical image based on an output of said detection means; (c) a prism unit for dividing light flux from said objective lens into a plurality of color component light fluxes; (d) conversion means for converting each color component light flux divided by said prism unit into an electrical signal; and (e) processing means for signal-processing electrical signals output by said conversion means so that a shift in the output of said conversion means caused by chromatic aberration generated by said deflection means is corrected.
Claim 7
Dependent Claim
120 words
A phototaking system for compensating for a fluctuation of an optical image produced by an objective lens, comprising: (a) detection means for detecting the fluctuation of the optical image; (b) deflecting means for optically deflecting the optical image based on an output of said detection means; (c) a prism unit for dividing light flux from said objective lens into a plurality of color component light fluxes; (d) conversion means for converting each color component light flux divided by said prism unit into an electrical signal; and (e) processing means for signal-processing electrical signals output by said conversion means so that a shift in the output of said conversion means caused by chromatic aberration generated by said deflection means is corrected.
Claim 8
Dependent Claim
16 words
A photographing system according to claim 5, wherein said deflecting means comprises a variable angle prism.
Claim 9
Dependent Claim
101 words
A phototaking system for compensating for a fluctuation of an optical image and having a conversion means for converting the optical image produced by an objective lens into an electrical signal, comprising: (a) detection means for detecting the fluctuation of the optical image; (b) deflection means for optically deflecting the optical image based on a detection signal of said detection means; and (c) processing means, coupled to said detection means, for processing the electrical signal of the conversion means so that a shift in the output of said conversion means caused by chromatic aberration generated by said deflection means is corrected.
Claim 10
Dependent Claim
101 words
A phototaking system for compensating for a fluctuation of an optical image and having a conversion means for converting the optical image produced by an objective lens into an electrical signal, comprising: (a) detection means for detecting the fluctuation of the optical image; (b) deflection means for optically deflecting the optical image based on a detection signal of said detection means; and (c) processing means, coupled to said detection means, for processing the electrical signal of the conversion means so that a shift in the output of said conversion means caused by chromatic aberration generated by said deflection means is corrected.
Claim 11
Dependent Claim
16 words
A phototaking system according to claim 7, wherein said deflection means comprises a variable angle prism.
References Cited (Backward Citations)
US3503663A
Cited
US4827333A
Cited
EP0149365A2
Cited
US4623930A
Cited
US5020890A
Cited
US4788596A
Cited
US4717958A
Cited
US4733264A
Cited
US5012347A
Cited
US4755876A
Cited
EP0332169A1
Cited
EP0366136A1
Cited
US5053875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-11 | 2001-02-10 | 2001-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-11 | 2005-02-10 | 2005-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-11 | 2009-02-10 | 2009-08-12 | $7700.00 | Window Closed / Lapsed |