US4114173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic camera with an operation mode display device
Assignee: Canon Inc
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Filing: 1977-01-10
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Granted: 1978-09-12
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Expires: 1997-01-10
Abstract
Abstract A camera having an electrically operated self-timer is provided with an operation mode display device arranged so that when the camera is switched to an exposure control mode by the self-timer, the display being ready for actuation of the timer is rendered recognizable from the object side or to the photographer, while when switched to any other exposure control mode, this display is shielded so as not to be recognizable from the object side or to the photographer.
Inventors
- 👤 Nobuo Tezuka
- 👤 Masanori Uchidoi
- 👤 Yukio Iura
- 👤 Masami Shimizu
- 👤 Ryoichi Yoshikawa
- 👤 Hiroshi Aizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:18
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/38
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
A photographic camera having a mode display device comprising: a. an electric self-timer means; b. a shutter button for operating a shutter release; c. a self-timer operation mode display means visually recognizable from outside of the camera, said means being electrically connected to the electric self-timer means; and d. a shielding means, said means being rotatably coaxial with the shutter button and movable between the one position at which the self-timer operation mode display means is visually recognizable and the other position at which the self-timer operation mode display means is not visually recognizable.
Claim 2
Dependent Claim
94 words
A photographic camera having a mode display device comprising: a. an electric self-timer means; b. a shutter button for operating a shutter release; c. a self-timer operation mode display means visually recognizable from outside of the camera, said means being electrically connected to the electric self-timer means; and d. a shielding means, said means being rotatably coaxial with the shutter button and movable between the one position at which the self-timer operation mode display means is visually recognizable and the other position at which the self-timer operation mode display means is not visually recognizable.
Claim 3
Dependent Claim
52 words
A photographic camera according to claim 1 further comprising: a. a self-timer switching means, said means being electrically connected to the electrical self-timer means and initiating the electrical self-timer means into an operation preparation mode by changing over the shielding means into the position at which the mode display is visually recognizable.
Claim 4
Dependent Claim
24 words
A photographic camera according to claim 2, wherein the self-timer switching means is closed by means of a member projecting from the shielding means.
Claim 5
Dependent Claim
19 words
A photographic camera according to claim 1, wherein the self-timer operation mode display means is a light emitting diode.
Claim 6
Dependent Claim
67 words
A photographic camera according to claim 1, further comprising: a shutter release operation prohibiting means; a. a projection member provided on the release button; b. an engaging member, said member being integral with the shielding means and movable along with the rotation of the shielding means into a position at which said member is engageable with the projection member so as to lock the shutter release operation.
Claim 7
Dependent Claim
192 words
A mode display means for a camera having: a. an electrical self-timer means; b. a shutter button for shutter release operation; c. a self-timer switching means, said means being connected to the electrical self-timer means and initiating the self-timer means into the operation preparation mode; comprising: A. a self-timer operation mode display means, said means being electrically connected to the electrical self-timer means and the self-timer switching means and arranged so as to be visually recognizable from outside of the camera; B. a shielding means, said means being rotatably coaxial with the shutter button, movable between the one position at which the mode display means is visually recognizable and the other position at which the mode display means is not visually recognizable and having a member for closing the self-timer switching means in operative engagement with the change over operation; C. a shutter release operation prohibiting means, said means including a projecting member provided on the shutter button and an engaging member constituted as one body with the shielding means so as to be engageable with the projecting member in order to lock the shutter release by means of the release button.
Claim 8
Dependent Claim
192 words
A mode display means for a camera having: a. an electrical self-timer means; b. a shutter button for shutter release operation; c. a self-timer switching means, said means being connected to the electrical self-timer means and initiating the self-timer means into the operation preparation mode; comprising: A. a self-timer operation mode display means, said means being electrically connected to the electrical self-timer means and the self-timer switching means and arranged so as to be visually recognizable from outside of the camera; B. a shielding means, said means being rotatably coaxial with the shutter button, movable between the one position at which the mode display means is visually recognizable and the other position at which the mode display means is not visually recognizable and having a member for closing the self-timer switching means in operative engagement with the change over operation; C. a shutter release operation prohibiting means, said means including a projecting member provided on the shutter button and an engaging member constituted as one body with the shielding means so as to be engageable with the projecting member in order to lock the shutter release by means of the release button.
References Cited (Backward Citations)
US3223013A
Cited
US3667367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-11 | 1982-03-13 | 1982-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-11 | 1986-03-13 | 1986-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-11 | 1990-03-13 | 1990-09-12 | $7700.00 | Window Closed / Lapsed |