US5023648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash taking lens shutter camera
Assignee: Nikon Corp
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Filing: 1989-03-31
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Granted: 1991-06-11
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Expires: 2009-03-31
Abstract
Abstract A lens shutter camera comprises a mode signal output device for outputting either a first flash mode signal or a second flash mode signal, a shutter driving device for effecting the opening movement of the lens shutter slowly and effecting the closing movement of the lens shutter quickly when the first flash mode signal is being outputted, and for effecting both of the opening and closing movements of the lens shutter slowly when the second flash mode signal is being outputted, and a flash start signal output device for outputting a flash start signal during the opening movement of the lens shutter when the first flash mode signal is being outputted, and for outputting the flash start signal during the closing movement of the lens shutter when the second flash mode signal is being outputted.
Inventors
- 👤 Hiroshi Meguro
- 👤 Tsugio Takahashi
- 👤 Hitoshi Aoki
- 👤 Toru Kosaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:51
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/70; G03B9/58; G03B9/60
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
217 words
A camera having a lens shutter and flash means for emitting flash toward an object, comprising: a) signal output means for selectively outputting a first mode signal and a second mode signal; b) drive means having first and second modes for effecting opening and closing movement of said lens shutter, said drive means selecting said first mode in response to said first mode signal and selecting said second mode in response to said second mode signal, said drive means effecting the opening movement of said lens shutter at a first opening speed and the closing movement of said lens shutter at first closing speed faster than said first opening speed in said first mode, and effecting the opening movement of said lens shutter at a second opening speed substantially equal to said first opening speed and the closing movement of said lens shutter at a second closing speed slower than said first closing speed in said second mode; and c) control means for controlling the timing of flash emission from said flash means, said control means effecting the flash emission of said flash means during the opening movement of said lens shutter in said first mode, and effecting the flash emission of said flash means during the closing movement of said lens shutter in said second mode.
Claim 2
Dependent Claim
217 words
A camera having a lens shutter and flash means for emitting flash toward an object, comprising: a) signal output means for selectively outputting a first mode signal and a second mode signal; b) drive means having first and second modes for effecting opening and closing movement of said lens shutter, said drive means selecting said first mode in response to said first mode signal and selecting said second mode in response to said second mode signal, said drive means effecting the opening movement of said lens shutter at a first opening speed and the closing movement of said lens shutter at first closing speed faster than said first opening speed in said first mode, and effecting the opening movement of said lens shutter at a second opening speed substantially equal to said first opening speed and the closing movement of said lens shutter at a second closing speed slower than said first closing speed in said second mode; and c) control means for controlling the timing of flash emission from said flash means, said control means effecting the flash emission of said flash means during the opening movement of said lens shutter in said first mode, and effecting the flash emission of said flash means during the closing movement of said lens shutter in said second mode.
Claim 3
Dependent Claim
67 words
A camera according to claim 1, wherein said drive means include an electromagnet and a motor, and the opening movements of said lens shutter at said first and second opening speeds and the closing movement of said lens shutter at said second closing speed are performed by said motor, and the closing movement of said lens shutter at said first closing speed is preformed by said electromagnet.
Claim 4
Dependent Claim
203 words
A camera having a lens shutter and flash means for emitting flash toward an object, comprising: a) signal output means for selectively outputting a first mode signal and a second mode signal; b) drive means including a motor and an electromagnet, said drive means selecting a first mode in response to said first mode signal and selecting a second mode in response to said second mode signal, said drive means causing said motor to effect opening movement of said lens shutter and causing said electromagnet to effect closing movement of said lens shutter in said first mode, and causing said motor to effect the opening and closing movements of said lens shutter in said second mode, and the closing movement of said lens shutter by means of said motor being slower than the closing movement of said lens shutter by means of said electromagnet; and c) control means for controlling the timing of flash emission from said flash means, said control means effecting the flash emission of said flash means during the opening movement of said lens shutter in said first mode, and effecting the flash emission of said flash means during the closing movement of said lens shutter in said second mode.
Claim 5
Dependent Claim
203 words
A camera having a lens shutter and flash means for emitting flash toward an object, comprising: a) signal output means for selectively outputting a first mode signal and a second mode signal; b) drive means including a motor and an electromagnet, said drive means selecting a first mode in response to said first mode signal and selecting a second mode in response to said second mode signal, said drive means causing said motor to effect opening movement of said lens shutter and causing said electromagnet to effect closing movement of said lens shutter in said first mode, and causing said motor to effect the opening and closing movements of said lens shutter in said second mode, and the closing movement of said lens shutter by means of said motor being slower than the closing movement of said lens shutter by means of said electromagnet; and c) control means for controlling the timing of flash emission from said flash means, said control means effecting the flash emission of said flash means during the opening movement of said lens shutter in said first mode, and effecting the flash emission of said flash means during the closing movement of said lens shutter in said second mode.
Claim 6
Dependent Claim
179 words
A camera having a lens shutter and flash means for emitting flash toward an object, comprising: a) signal output means for selectively outputting a first mode signal and a second mode signal; b) drive means having first and second modes for effecting opening and closing movements of said lens shutter, said drive means selecting said first mode in response to said first mode signal and selecting said second mode in response to said second mode signal, said drive means effecting the closing movement of said lens shutter at a first closing speed in said first mode, and effecting the closing movement of said lens shutter at a second closing speed slower than said first closing speed in said second mode; and c) control means for controlling the timing of flash emission from said flash means, said control means effecting the flash emission of said flash means during the opening movement of said lens shutter in said first mode, and effecting the flash emission of said flash means during the closing movement of said lens shutter in said second mode.
Claim 7
Dependent Claim
179 words
A camera having a lens shutter and flash means for emitting flash toward an object, comprising: a) signal output means for selectively outputting a first mode signal and a second mode signal; b) drive means having first and second modes for effecting opening and closing movements of said lens shutter, said drive means selecting said first mode in response to said first mode signal and selecting said second mode in response to said second mode signal, said drive means effecting the closing movement of said lens shutter at a first closing speed in said first mode, and effecting the closing movement of said lens shutter at a second closing speed slower than said first closing speed in said second mode; and c) control means for controlling the timing of flash emission from said flash means, said control means effecting the flash emission of said flash means during the opening movement of said lens shutter in said first mode, and effecting the flash emission of said flash means during the closing movement of said lens shutter in said second mode.
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) | 1994-06-10 | 1994-12-10 | 1995-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-10 | 1998-12-10 | 1999-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-10 | 2002-12-10 | 2003-06-11 | $7700.00 | Window Closed / Lapsed |