Patent US5250978A successfully refreshed from Google Patents.
US5250978A
Expired / Lapsed
US
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Flashing device
Assignee: Pentax Corp
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Filing: 1992-02-06
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Granted: 1993-10-05
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Expires: 2012-02-06
Abstract
Abstract A flashing device associated with a camera is provided with a light emitting member, a condenser that is charged to supply electricity to the light emitting member, and a charging circuit for charging the condenser. The charging circuit is controlled to intermittently charge the condenser in accordance with the charged voltage of the condenser.
Inventors
- 👤 Kimiaki Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:16
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/32; H05B41/325; G03B2215/00; G03B2215/05; G03B2215/0503
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
91 words
A flashing device for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage detected by said detecting means after said detected voltage reaches a predetermined value; and means for terminating said intermittent charging of said condenser if said detected voltage reaches a second predetermined value.
Claim 2
Dependent Claim
91 words
A flashing device for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage detected by said detecting means after said detected voltage reaches a predetermined value; and means for terminating said intermittent charging of said condenser if said detected voltage reaches a second predetermined value.
Claim 3
Dependent Claim
53 words
The flashing device of claim 1, wherein said controlling means comprises means for determining whether said voltage of said condenser reaches said predetermined value, and wherein said controlling means controls said charging means to intermittently charge said condenser when it is determined that said voltage of said condenser has reached said predetermined value.
Claim 4
Dependent Claim
51 words
The flashing device of claim 2, wherein said controlling means controls said charging means in such a fashion that said charging of said condenser and a ceasing of charging of said condenser are alternately executed when said voltage of said condenser is higher than that or equal to said predetermined value.
Claim 5
Dependent Claim
37 words
The flashing device of claim 3, wherein said charging and said ceasing of said charging are periodically executed, said charging being executed for a first predetermined period, and said charging being ceased for a second predetermined period.
Claim 6
Dependent Claim
153 words
A flashing device for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; and means for controlling said charging means to intermittently charge said condenser in accordance with said voltage detected by said detecting means after said detected voltage reaches a predetermined value, wherein said controlling means comprises means for determining whether said voltage of said condenser reaches said predetermined value, said controlling means controlling said charging means to intermittently charge said condenser when it is determined that said voltage of said condenser has reached said predetermined value, said determining means determining whether said voltage of said condenser reaches a second predetermined value, and wherein said controlling means stops charging said condenser when said voltage of said condenser reaches said second predetermined value.
Claim 7
Dependent Claim
153 words
A flashing device for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; and means for controlling said charging means to intermittently charge said condenser in accordance with said voltage detected by said detecting means after said detected voltage reaches a predetermined value, wherein said controlling means comprises means for determining whether said voltage of said condenser reaches said predetermined value, said controlling means controlling said charging means to intermittently charge said condenser when it is determined that said voltage of said condenser has reached said predetermined value, said determining means determining whether said voltage of said condenser reaches a second predetermined value, and wherein said controlling means stops charging said condenser when said voltage of said condenser reaches said second predetermined value.
Claim 8
Dependent Claim
99 words
A flashing device, which is associated with a camera, for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage of said condenser detected by said detecting means after said detected voltage reaches a predetermined value; and means for terminating said intermittent charging of said condenser if said voltage reaches a second predetermined value.
Claim 9
Dependent Claim
99 words
A flashing device, which is associated with a camera, for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage of said condenser detected by said detecting means after said detected voltage reaches a predetermined value; and means for terminating said intermittent charging of said condenser if said voltage reaches a second predetermined value.
Claim 10
Dependent Claim
53 words
The flashing device of claim 6, wherein said controlling means comprises means for determining whether said voltage of said condenser reaches said predetermined value, and wherein said controlling means controls said charging means to intermittently charge said condenser when it is determined that said voltage of said condenser has reached said predetermined value.
Claim 11
Dependent Claim
159 words
A flashing device associated with a camera for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage of said condenser detected by said detecting means after said detected voltage reaches a predetermined value, wherein said controlling means comprises means for determining whether said voltage of said condenser reaches said predetermined value, said controlling means controlling said charging means to intermittently charge said condenser when it is determined that said voltage of said condenser has reached said predetermined value, said determining means determining whether said voltage of said condenser reaches a second predetermined value, said controlling means stopping said charging of said condenser when said voltage of said condenser reaches said second predetermined value.
Claim 12
Dependent Claim
159 words
A flashing device associated with a camera for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage of said condenser detected by said detecting means after said detected voltage reaches a predetermined value, wherein said controlling means comprises means for determining whether said voltage of said condenser reaches said predetermined value, said controlling means controlling said charging means to intermittently charge said condenser when it is determined that said voltage of said condenser has reached said predetermined value, said determining means determining whether said voltage of said condenser reaches a second predetermined value, said controlling means stopping said charging of said condenser when said voltage of said condenser reaches said second predetermined value.
Claim 13
Dependent Claim
41 words
The flashing device of claim 8, wherein said condenser is charged in such a fashion that said charging and a ceasing of charging are alternately executed when said voltage of said condenser is higher than or equal to said predetermined value.
Claim 14
Dependent Claim
38 words
The flashing device according to claim 9, wherein said charging and said ceasing of said charging are periodically executed, said charging being executed for a first predetermined period, and said charging being ceased for a second predetermined period.
Claim 15
Dependent Claim
154 words
A flashing device associated with a camera for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage of said condenser detected by said detecting means after said detected voltage reaches a predetermined value, wherein said controlling means comprises means for determining whether said voltage of said condenser reaches said predetermined value, said controlling means controlling said charging means to intermittently charge said condenser when it is determined that said voltage of said condenser has reached said predetermined value, said determining means determining whether said voltage of said condenser reaches a second predetermined value, said controlling means stopping said charging of said condenser when a photograph shooting is executed.
Claim 16
Dependent Claim
154 words
A flashing device associated with a camera for emitting light, comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said flashing device further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage of said condenser detected by said detecting means after said detected voltage reaches a predetermined value, wherein said controlling means comprises means for determining whether said voltage of said condenser reaches said predetermined value, said controlling means controlling said charging means to intermittently charge said condenser when it is determined that said voltage of said condenser has reached said predetermined value, said determining means determining whether said voltage of said condenser reaches a second predetermined value, said controlling means stopping said charging of said condenser when a photograph shooting is executed.
Claim 17
Dependent Claim
23 words
The flashing device of claim 6, wherein said controlling means controls said charging means to stop charging when a photograph shooting is executed.
Claim 18
Independent Claim
101 words
A method for controlling a charger provided in a flashing device, the flashing device having a condenser that supplies electricity to an illuminator, the condenser being charged by the charger, and a power source for supplying electricity to the charger, the method comprising the steps of: charging the condenser; determining whether the charged voltage of the condenser reaches a predetermined voltage; intermittently charging the condenser when the charged voltage of the condenser is higher than or equal to the predetermined voltage; and terminating the intermittent charging of the condenser if the charged voltage of the condenser reaches a second predetermined value.
Claim 19
Independent Claim
101 words
A method for controlling a charger provided in a flashing device, the flashing device having a condenser that supplies electricity to an illuminator, the condenser being charged by the charger, and a power source for supplying electricity to the charger, the method comprising the steps of: charging the condenser; determining whether the charged voltage of the condenser reaches a predetermined voltage; intermittently charging the condenser when the charged voltage of the condenser is higher than or equal to the predetermined voltage; and terminating the intermittent charging of the condenser if the charged voltage of the condenser reaches a second predetermined value.
Claim 20
Dependent Claim
34 words
The method of claim 13, wherein the step of intermittently charging comprises alternate steps of: charging the condenser for a first predetermined period; and ceasing charging of the condenser for a second predetermined period.
Claim 21
Dependent Claim
86 words
A camera comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said camera further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage detected by said detecting means after said detected voltage reaches a predetermined value; and means for terminating said intermittent charging of said condenser if said detected voltage reaches a second predetermined value.
Claim 22
Dependent Claim
86 words
A camera comprising means for emitting light, a condenser that is charged to supply electricity to said light emitting means, and means for charging said condenser, said camera further comprising: means for detecting a voltage of said condenser; means for controlling said charging means to intermittently charge said condenser in accordance with said voltage detected by said detecting means after said detected voltage reaches a predetermined value; and means for terminating said intermittent charging of said condenser if said detected voltage reaches a second predetermined value.
Claim 23
Dependent Claim
53 words
The camera device of claim 15, wherein said controlling means comprises means for determining whether said voltage of said condenser reaches said predetermined value, and wherein said controlling means controls said charging means to intermittently charge said condenser when it is determined that said voltage of said condenser has reached said predetermined value.
Claim 24
Dependent Claim
43 words
The camera of claim 16, wherein said controlling means controls said charging means in such a fashion that said charging and a ceasing of charging are alternately executed when said voltage of said condenser is higher than or equal to said predetermined value.
Claim 25
Dependent Claim
36 words
The camera of claim 17, wherein said charging and said ceasing of said charging means are periodically executed, said charging being executed for a first predetermined period, said charging being ceased for a second predetermined period.
Claim 26
Independent Claim
76 words
An apparatus for controlling a charging of a flash device, comprising: means for continuously charging a condenser that supplies electricity to a light emitter that is activatable to emit light; means for detecting when a voltage of said condenser reaches a predetermined value; means for intermittently charging said condenser when said detected voltage reaches said predetermined value; and means for terminating said intermittent charging of said condenser if said detected voltage reaches a second predetermined value.
Claim 27
Independent Claim
76 words
An apparatus for controlling a charging of a flash device, comprising: means for continuously charging a condenser that supplies electricity to a light emitter that is activatable to emit light; means for detecting when a voltage of said condenser reaches a predetermined value; means for intermittently charging said condenser when said detected voltage reaches said predetermined value; and means for terminating said intermittent charging of said condenser if said detected voltage reaches a second predetermined value.
Claim 28
Independent Claim
89 words
An apparatus for controlling a charging of a flash device, comprising: means for continuously charging a condenser that supplies electricity to a light emitter that is activatable to emit light; means for detecting when a voltage of said condenser reaches a predetermined value; means for intermittently charging said condenser when said detected voltage reaches said predetermined value; means for detecting whether said voltage of said condenser reaches a second predetermined value; and means for terminating a charging of said condenser if said detected voltage reaches said second predetermined value.
Claim 29
Independent Claim
89 words
An apparatus for controlling a charging of a flash device, comprising: means for continuously charging a condenser that supplies electricity to a light emitter that is activatable to emit light; means for detecting when a voltage of said condenser reaches a predetermined value; means for intermittently charging said condenser when said detected voltage reaches said predetermined value; means for detecting whether said voltage of said condenser reaches a second predetermined value; and means for terminating a charging of said condenser if said detected voltage reaches said second predetermined value.
Claim 30
Dependent Claim
39 words
The apparatus of claim 19, wherein when said condenser is intermittently charged, said charging of said condenser is executed for a first predetermined period, and a ceasing of said charging of said condenser occurs for a second predetermined period.
Claim 31
Independent Claim
62 words
An apparatus for controlling a charging of a flash device, comprising: means for charging a condenser associated with said flash device on a continuous basis until a first predetermined value; means for intermittently charging said condenser when said voltage reaches said predetermined value; and means for terminating a charging of said intermittently charged condenser if said voltage reaches a second predetermined value.
Claim 32
Independent Claim
62 words
An apparatus for controlling a charging of a flash device, comprising: means for charging a condenser associated with said flash device on a continuous basis until a first predetermined value; means for intermittently charging said condenser when said voltage reaches said predetermined value; and means for terminating a charging of said intermittently charged condenser if said voltage reaches a second predetermined value.
Claim 33
Independent Claim
76 words
A method for controlling a charging of a flash device, comprising the steps of: charging a condenser associated with the flash device on a continuous basis; determining whether a voltage of the charging condenser reaches a predetermined voltage; charging the condenser on an intermittent basis when the charging voltage of the condenser is detected to reach the predetermined voltage; and terminating the intermittent charging of the condenser if the detected voltage reaches a second predetermined value.
Claim 34
Independent Claim
76 words
A method for controlling a charging of a flash device, comprising the steps of: charging a condenser associated with the flash device on a continuous basis; determining whether a voltage of the charging condenser reaches a predetermined voltage; charging the condenser on an intermittent basis when the charging voltage of the condenser is detected to reach the predetermined voltage; and terminating the intermittent charging of the condenser if the detected voltage reaches a second predetermined value.
Claim 35
Independent Claim
93 words
A method for controlling a charging of a flash device, comprising the steps of: charging a condenser associated with the flash device on a continuous basis; determining whether a voltage of the charging condenser reaches a predetermined voltage; charging the condenser on an intermittent basis when the charging voltage of the condenser is detected to reach the predetermined voltage; determining whether the intermittently charging condenser reaches a second predetermined voltage; and terminating the intermittent charging of the condenser if the charging voltage of the condenser is detected to reach the second predetermined value.
Claim 36
Independent Claim
93 words
A method for controlling a charging of a flash device, comprising the steps of: charging a condenser associated with the flash device on a continuous basis; determining whether a voltage of the charging condenser reaches a predetermined voltage; charging the condenser on an intermittent basis when the charging voltage of the condenser is detected to reach the predetermined voltage; determining whether the intermittently charging condenser reaches a second predetermined voltage; and terminating the intermittent charging of the condenser if the charging voltage of the condenser is detected to reach the second predetermined value.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-10-04 | 1997-04-05 | 1997-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-04 | 2001-04-05 | 2001-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-04 | 2005-04-05 | 2005-10-05 | $7700.00 | Window Closed / Lapsed |