US4951068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera system with flash device
Assignee: Minolta Co Ltd
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Filing: 1989-05-16
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Granted: 1990-08-21
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Expires: 2009-05-16
Abstract
Abstract A camera comprising a flash unit attachable to a camera body, a switching device and a control device. The flash unit includes a light emitter switchable between an emission permit state in which the light emitter is projected from a body of the flash device and an emission prohibit state in which the light emitter is retracted into the body. The flash unit further includes a control circuit for selectively placing the light emitter in the emission permit state and the emission prohibit state. A main switch is provided in the camera body to be switchable between a position for permitting a camera operation and a position for prohibiting the camera operation. When the light emitter is placed in the emission permit state when the main switch is switched to the position for permitting the camera operation.
Inventors
- 👤 Tsutomu Ichikawa
- 👤 Masayuki Yoshii
- 👤 Norio Ishikawa
- 👤 Akihiko Fujino
- 👤 Masayuki Nakasa
- 👤 Mashio Kitaura
- 👤 Kenji Tsuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:13
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; G03B7/00; G03B7/16; G03B2215/00; G03B2215/05; G03B2215/0514; G03B2215/0517; G03B2215/0525; G03B2215/0528
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
126 words
A camera system with a flash device comprising: flashing means including a light emitter switchable between an emission permit state in which the light emitter is projected from a body of the flash device and an emission prohibit state in which the light emitter is retracted into the body, and operating means for selectively placing said light emitter in said emission permit state and said emission prohibit state; switching means switchable between a first state for permitting operation of the camera system operation and a second state for prohibiting operation of the camera system; and control means for controlling said operating means to place said light emitter in the emission permit state when said switching means is switched from the second state to the first state.
Claim 2
Dependent Claim
126 words
A camera system with a flash device comprising: flashing means including a light emitter switchable between an emission permit state in which the light emitter is projected from a body of the flash device and an emission prohibit state in which the light emitter is retracted into the body, and operating means for selectively placing said light emitter in said emission permit state and said emission prohibit state; switching means switchable between a first state for permitting operation of the camera system operation and a second state for prohibiting operation of the camera system; and control means for controlling said operating means to place said light emitter in the emission permit state when said switching means is switched from the second state to the first state.
Claim 3
Dependent Claim
43 words
A camera system as claimed in claim 1, wherein said control means is operable for controlling said operating means to place said light emitter in the emission prohibit state when said switching means is switched from the first state to the second state.
Claim 4
Dependent Claim
85 words
A camera system as claimed in claim 1, wherein said flashing means further includes flash switch means selectively switchable between a first state for permitting operation of said flashing means and a second state for prohibiting operation of said flashing means, said control means being operable for controlling said operating means to place said light emitter in the emission prohibit state when said flash switch means is switched from the first state to the second state with said switching means placed in the second state.
Claim 5
Dependent Claim
53 words
A camera system as claimed in claim 3, wherein said control means is operable for controlling said operating means to place said light emitter in the emission permit state when said flash switch means is switched from the second state to the first state with said switching means placed in the second state.
Claim 6
Dependent Claim
69 words
A camera system as claimed in claim 1, wherein said flashing means further includes flash switch means and detecting means, said flash switch means being selectively switchable between a first state for permitting operation of said flashing means and a second state for prohibiting operation of said flashing means, and said detecting means being operable for detecting whether said light emitter is projected from or retracted into the body.
Claim 7
Dependent Claim
64 words
A camera system as claimed in claim 5, wherein said control means is operable for controlling said operating means to place said light emitter in the emission permit state when said switching means is switched from the second state to the first state, with said flash switch means placed in the first state and said detecting means detecting that said light emitter is retracted.
Claim 8
Dependent Claim
64 words
A camera system as claimed in claim 5, wherein said control means is operable for controlling said operating means to place said light emitter in the emission permit state when said switching means is switched from the second state to the first state, with said flash switch means placed in the first state and said detecting means detecting neither state of said light emitter.
Claim 9
Dependent Claim
64 words
A camera system as claimed in claim 5, wherein said control means is operable for controlling said operating means to place said light emitter in the emission prohibit state when said switching means is switched from the second state to the first state, with said flash switch means placed in the second state and said detecting means detecting that said light emitter is projected.
Claim 10
Dependent Claim
64 words
A camera system as claimed in claim 5, wherein said control means is operable for controlling said operating means to place said light emitter in the emission prohibit state when said switching means is switched from the second state to the first state, with said flash switch means placed in the second state and said detecting means detecting neither state of said light emitter.
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) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |