Patent US665775A successfully refreshed from Google Patents.
Patent US3668988A successfully refreshed from Google Patents.
US3668988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure controlling structure for photographic apparatus
Assignee: Agfa Gevaert AG
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Filing: 1970-11-05
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Granted: 1972-06-13
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Expires: 1990-11-05
Abstract
Abstract A photographic camera wherein the diaphragm is adjusted by a scanning member which scans the position of the needle in a moving-coil instrument. The scanning member is free to scan the needle in response to energization of an electromagnet which is energizable by the camera release. The scanning member then opens a switch which deenergizes the electromagnet whereby the latter permits an impeller to propel the blade of the shutter to an open position subsequent to appropriate adjustment of the diaphragm.
Inventors
- 👤 Dieter Engelsmann
- 👤 Rolf Schroder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:17
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/12
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
171 words
In a photographic apparatus, a combination comprising an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; a shutter; actuating means operable to actuate said shutter; and control means including electromagnet means having a first condition and a second condition and arranged to assume said second condition with a predetermined delay following the assumption of said first condition, said electromagnet means being operative to effect a movement of said scanning means from said idle position to said scanning position in said first condition thereof and to thereupon effect the operation of said actuating means in said second condition thereof so that the actuation of said shutter means takes place with said predetermined delay following the movement of sAid scanning means from said idle position.
Claim 2
Dependent Claim
171 words
In a photographic apparatus, a combination comprising an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; a shutter; actuating means operable to actuate said shutter; and control means including electromagnet means having a first condition and a second condition and arranged to assume said second condition with a predetermined delay following the assumption of said first condition, said electromagnet means being operative to effect a movement of said scanning means from said idle position to said scanning position in said first condition thereof and to thereupon effect the operation of said actuating means in said second condition thereof so that the actuation of said shutter means takes place with said predetermined delay following the movement of sAid scanning means from said idle position.
Claim 3
Dependent Claim
31 words
A combination as defined in claim 1, wherein said actuating means comprises impeller means arranged to open said shutter following the adjustment of said diaphragm by way of said scanning means.
Claim 4
Dependent Claim
17 words
A combination as defined in claim 1, wherein said actuating means forms part of said control means.
Claim 5
Dependent Claim
55 words
A combination as defined in claim 1, wherein said control means includes a switch in circuit with said electromagnet means and release means operable to actuate said switch and to thereby energize said electromagnet means whereby the thus energized electromagnet means effects said movement of said scanning means from said idle to said scanning position.
Claim 6
Dependent Claim
19 words
A combination as defined in claim 1, wherein said control means further comprises release means including a deformable display.
Claim 7
Dependent Claim
18 words
A combination as defined in claim 1, wherein said output member constitutes the needle of a moving-coil instrument.
Claim 8
Dependent Claim
123 words
In a photographic apparatus, a combination comprising an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; and control means including electromagnet means operative to effect a movement of said scanning means from said idle to said scanning position, and blocking means for normally holding said scanning means in said idle position, said electromagnet means having armature means arranged to disengage said blocking means from said scanning means in response to energization of said electromagnet means.
Claim 9
Dependent Claim
123 words
In a photographic apparatus, a combination comprising an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; and control means including electromagnet means operative to effect a movement of said scanning means from said idle to said scanning position, and blocking means for normally holding said scanning means in said idle position, said electromagnet means having armature means arranged to disengage said blocking means from said scanning means in response to energization of said electromagnet means.
Claim 10
Dependent Claim
156 words
In a photographic apparatus, a combination comprising an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; and control means including electromagnet means operative to effect a movement of said scanning means from said idle position to said scanning position, said control means further including normally open first switch means and normally closed second switch means in circuit with said electromagnet means and release means actuatable to close said first switch means to thereby energize said electromagnet means whereby the latter effects said movement of said scanning means from said idle to said scanning position, said electromagnet means being deenergizable in response to opening of said second switch means.
Claim 11
Dependent Claim
156 words
In a photographic apparatus, a combination comprising an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; and control means including electromagnet means operative to effect a movement of said scanning means from said idle position to said scanning position, said control means further including normally open first switch means and normally closed second switch means in circuit with said electromagnet means and release means actuatable to close said first switch means to thereby energize said electromagnet means whereby the latter effects said movement of said scanning means from said idle to said scanning position, said electromagnet means being deenergizable in response to opening of said second switch means.
Claim 12
Dependent Claim
28 words
A combination as defined in claim 8, wherein said second switch means is arranged to open in response to movement of said scanning means to said scanning position.
Claim 13
Dependent Claim
170 words
In a photographic apparatus, a combination comprising an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; and control means including electromagnet means operative to effect a movement of said scanning means from said idle to said scanning position, said control means further comprising blocking means movable between a first position in which said scanning means is held in said idle position and a second position in which said scanning means is free to move to said scanning position, and biasing means for urging said blocking means to said first position thereof, said electromagnet means having armature means arranged to move said blocking means to said second position against the opposition of said biasing means In response to energization of said electromagnet means.
Claim 14
Dependent Claim
170 words
In a photographic apparatus, a combination comprising an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; and control means including electromagnet means operative to effect a movement of said scanning means from said idle to said scanning position, said control means further comprising blocking means movable between a first position in which said scanning means is held in said idle position and a second position in which said scanning means is free to move to said scanning position, and biasing means for urging said blocking means to said first position thereof, said electromagnet means having armature means arranged to move said blocking means to said second position against the opposition of said biasing means In response to energization of said electromagnet means.
Claim 15
Dependent Claim
26 words
A combination as defined in claim 10, further comprising a shutter and actuating means for actuating said shutter in response to deenergization of said electromagnet means.
Claim 16
Dependent Claim
46 words
A combination as defined in claim 11, wherein said biasing means is arranged to move said blocking means to a third position in response to deenergization of said electromagnet means and said actuating means is responsive to movement of said blocking means to said third position.
Claim 17
Dependent Claim
160 words
In a photographic apparatus, a combination comprising shutter means movable between open and closed positions; an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; and control means including electromagnet means operative to effect a movement of said scanning means from said idle to said scanning position, said control means further comprising blocking means movable by said electromagnet means from a first position in which said blocking means holds said scanning means in said idle position to a second position in which said scanning means is free to move toward said scanning position, said blocking means being arranged to prevent the opening of said shutter means in said first and second positions thereof.
Claim 18
Dependent Claim
160 words
In a photographic apparatus, a combination comprising shutter means movable between open and closed positions; an adjustable diaphragm; adjusting means for said diaphragm, including an output member movable between a plurality of positions and scanning means for scanning the position of said output member, said scanning means being movable from an idle position to a scanning position to thereby adjust said diaphragm as a function of the position of said output member; and control means including electromagnet means operative to effect a movement of said scanning means from said idle to said scanning position, said control means further comprising blocking means movable by said electromagnet means from a first position in which said blocking means holds said scanning means in said idle position to a second position in which said scanning means is free to move toward said scanning position, said blocking means being arranged to prevent the opening of said shutter means in said first and second positions thereof.
Claim 19
Dependent Claim
21 words
A combination as defined in claim 13, wherein said blocking means and said scanning means are pivotable between said positions thereof.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |