US5493353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual video and still-film camera
Assignee: Individual
•
Filing: 1994-11-01
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Granted: 1996-02-20
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Expires: 2014-11-01
Abstract
Abstract Dual video and still-film camera embodying video recorder camera technology in two popular types of still-film camera: single-lens reflex (SLR) (1) and compact (2). The most advanced digital image-sensing semiconductor chip (charge- coupled device or CCD) (4) (21) and circuit board (8) (23), as well as other functional video camera components, are combined with the conventional apparatus of the still-film camera to support the video and still-film modes of photography in a single camera casing. By means of a manual switch (9) (24) or, as an alternate embodiment, an electrical switch, the user can extend the digital image sensor (4) (21) into the light-image line of sight in order to activate video operation or can retract the image sensor in order to allow still-film operation unimpeded by the video apparatus.
Inventors
- 👤 Sayu Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:32
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/21; H04N1/2104; H04N1/2112; H04N1/2116; H04N1/0035; H04N1/00405; H04N1/00408; H04N1/0044; H04N23/00; H04N23/50; H04N23/54; H04N2101/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
132 words
A camera combining user-selected apparatus for still-film photography and user-selected apparatus for video photography, comprising a. an electronic image sensor with circuit board which elements can be extended into and retracted from the light-image line of sight as necessary for video or still-film operation, b. an electrical contact as signaling means for the camera micro controller to enable or disable certain elements, such as mirror, shutter, an aperture diaphragm, maintaining them in fixed positions needed for still-film or video operation, c. a conventional still-film photographing apparatus, with elements including film spool, film track, film controls, view finder, lens, flash device, and shutter and aperture diaphragm controls, and d. a conventional video photographing apparatus, with elements including tape deck and spools, video eyepiece, video head drum, sound recorder, and playback mechanism, and controls.
Claim 2
Dependent Claim
132 words
A camera combining user-selected apparatus for still-film photography and user-selected apparatus for video photography, comprising a. an electronic image sensor with circuit board which elements can be extended into and retracted from the light-image line of sight as necessary for video or still-film operation, b. an electrical contact as signaling means for the camera micro controller to enable or disable certain elements, such as mirror, shutter, an aperture diaphragm, maintaining them in fixed positions needed for still-film or video operation, c. a conventional still-film photographing apparatus, with elements including film spool, film track, film controls, view finder, lens, flash device, and shutter and aperture diaphragm controls, and d. a conventional video photographing apparatus, with elements including tape deck and spools, video eyepiece, video head drum, sound recorder, and playback mechanism, and controls.
Claim 3
Dependent Claim
22 words
The camera of claim 1 wherein the still-film components are either of the single-lens reflex (SLR) type or of the compact type.
Claim 4
Dependent Claim
44 words
The camera of claim 2 wherein the compact type of still-film apparatus uses a rigid, thin spacer bonded to the back of the image sensor and sized to the focal plane chamber opening as a light-protecting means to avoid film exposure during video operation.
References Cited (Backward Citations)
US2229497A
Cited
US3913376A
Cited
US4064517A
Cited
US4031739A
Cited
US4064736A
Cited
US4096732A
Cited
US4230400A
Cited
US4335945A
Cited
US4763146A
Cited
US4959676A
Cited
US4738526A
Cited
US4831450A
Cited
US4825290A
Cited
US4829384A
Cited
US4829383A
Cited
US5424772A
Cited
US4903055A
Cited
US5150215A
Cited
US5382974A
Cited
JPH04340942A
Cited
US5410225A
Cited
US5353079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-19 | 1999-08-21 | 2000-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-19 | 2003-08-21 | 2004-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-19 | 2007-08-21 | 2008-02-20 | $7700.00 | Window Closed / Lapsed |