US3672286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for adjustment of shutters and diaphragms in photographic apparatus
Assignee: Agfa Gevaert AG
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Filing: 1970-09-18
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Granted: 1972-06-27
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Expires: 1990-09-18
Abstract
Abstract A photographic apparatus, particularly a still camera, wherein the upper right-hand corner portion of the front wall of the body supports a knob whose stem is confined to movements in a twodimensional field. Vertical movements of the knob result in adjustments of the diaphragm, horizontal movements of the knob result in adjustments of the shutter, and movements of the knob in any other direction result in simultaneous adjustments of the shutter and diaphragm. The positions of the knob are observable in the view finder, and the knob can further rotate the moving coil instrument of an exposure meter so that the needle of the instrument moves with reference to stationary markers to indicate whether or not the selected combination of exposure time and aperture size is satisfactory for the planned exposure.
Inventors
- 👤 Karl Wagner
- 👤 Helmut Durr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:50
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/04; G03B17/00; G03B17/18; G03B17/20
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
116 words
In a photographic apparatus, a combination comprising an adjustable shutter; an adjustable diaphragm; first adjusting means operative to adjust said shutter; second adjusting means operative to adjust said diaphragm; and actuating means operatively connected to said first and second adjusting means and being movable in a two-dimensional field whereby a movement of said actuating means in at least one first direction will result in operation of said first adjusting means, a movement of said actuating means in at least one second direction will result in operation of said second adjusting means and a movement of said actuating means in at least one third direction will result in simultaneous operation of said first and second adjusting means.
Claim 2
Dependent Claim
116 words
In a photographic apparatus, a combination comprising an adjustable shutter; an adjustable diaphragm; first adjusting means operative to adjust said shutter; second adjusting means operative to adjust said diaphragm; and actuating means operatively connected to said first and second adjusting means and being movable in a two-dimensional field whereby a movement of said actuating means in at least one first direction will result in operation of said first adjusting means, a movement of said actuating means in at least one second direction will result in operation of said second adjusting means and a movement of said actuating means in at least one third direction will result in simultaneous operation of said first and second adjusting means.
Claim 3
Dependent Claim
40 words
A combination as defined in claim 1, further comprising exposure meter means including an adjustable measuring instrument, and motion transmitting means for adjusting said instrument in response to operation of at least one of said first and second adjusting means.
Claim 4
Dependent Claim
29 words
A combination as defined in claim 2, wherein said motion transmitting means is operatively connected with said actuating means and said light measuring instrument is a moving coil instrument.
Claim 5
Dependent Claim
16 words
A combination as defined in claim 3, wherein said motion transmitting means comprises a gear train.
Claim 6
Dependent Claim
55 words
A combination as defined in claim 1, wherein said field has two coordinates and said actuating means is movable in a plurality of directions including a movement along one of said coordinates to thereby operate only said first adjusting means and a movement along the other coordinate to thereby operate only said second adjusting means.
Claim 7
Dependent Claim
27 words
A combination as defined in claim 1, further comprising a view finder and indicating means for indicating the position of said actuating means in said view finder.
Claim 8
Dependent Claim
30 words
A combination as defined in claim 6, wherein said indicating means includes means for producing a light spot which moves in said view finder in synchronism with said actuating means.
Claim 9
Dependent Claim
79 words
A combination as defined in claim 7, wherein said indicating means further comprises scale means defining a coordinate system with exposure times measured along one of the coordinates and the aperture sizes measured along the other coordinate, said coordinate system being observable in said view finder and said light spot being movable with reference to said coordinates to indicate the exposure time and the aperture size as a function of the position of said actuating means in said field.
Claim 10
Dependent Claim
76 words
A combination as defined in claim 7, wherein said means for producing said light spot comprises a first mask receiving motion from said actuating means and having a first elongated slot, a second mask receiving motion from said actuating means and having a second elongated slot crossing said first slot so that light can pass only through the intersection of said slots, and means for reflecting into said view finder the light passing through said intersection.
Claim 11
Dependent Claim
33 words
A combination as defined in claim 9, wherein said first mask receives motion by way of said first adjusting means and said second mask receives motion by way of said second adjusting means.
Claim 12
Dependent Claim
46 words
A combination as defined in claim 1, further comprising view finder means and first and second pointer means respectively connected with said first and second adjusting means and having portions observable in said view finder means to respectively indicate the selected exposure time and aperture size.
Claim 13
Dependent Claim
47 words
A combination as defined in claim 11, further comprising an exposure time scale observable in said view finder means adjacent to said portion of said first pointer means and an aperture scale observable in said view finder means adjacent to said portion of said second pointer means.
Claim 14
Dependent Claim
133 words
In a photographic apparatus, a combination comprising an adjustable shutter; an adjustable diaphragm; first adjusting means operative to adjust said shutter and having a first elongated slot; second adjusting means operative to adjust said diaphragm and having a second elongated slot which crosses said first slot, said first and second adjusting means being respectively movable substantially transversely of said first and second slots; and actuating means movable in a two-dimensional field to thereby operate either or both of said adjusting means, said actuating means comprising a displacing portion extending through the intersection of said slots and being movable in a plurality of directions including a movement lengthwise of said first slot to thereby move said second adjusting means and a movement lengthwise of said second slot to thereby move said first adjusting means.
Claim 15
Dependent Claim
133 words
In a photographic apparatus, a combination comprising an adjustable shutter; an adjustable diaphragm; first adjusting means operative to adjust said shutter and having a first elongated slot; second adjusting means operative to adjust said diaphragm and having a second elongated slot which crosses said first slot, said first and second adjusting means being respectively movable substantially transversely of said first and second slots; and actuating means movable in a two-dimensional field to thereby operate either or both of said adjusting means, said actuating means comprising a displacing portion extending through the intersection of said slots and being movable in a plurality of directions including a movement lengthwise of said first slot to thereby move said second adjusting means and a movement lengthwise of said second slot to thereby move said first adjusting means.
Claim 16
Dependent Claim
33 words
A combination as defined in claim 13, wherein said shutter comprises an adjustable retard mechanism connected with said first adjusting means to undergo adjustment in response to movement of said first adjusting means.
Claim 17
Dependent Claim
24 words
A combination as defined in claim 14, further comprising a gear train for transmitting motion from said first adjusting means to said retard mechanism.
Claim 18
Dependent Claim
32 words
A combination as defined in claim 13, wherein said diaphragm comprises an adjustable element connected with said second adjusting means to undergo adjustment in response to movement of said second adjusting means.
Claim 19
Dependent Claim
23 words
A combination as defined in claim 16, further comprising a gear train for transmitting motion from said second adjusting means to said element.
Claim 20
Dependent Claim
89 words
A combination as defined in claim 13, further comprising an exposure meter having an adjustable light measuring instrument and motion transmitting means for adjusting said instrument, said motion transmitting means comprising a motIon transmitting member having a third slot which is inclined with reference to and crosses said first and second slots, said displacing portion extending into said third slot to adjust said instrument by way of said motion transmitting means when said displacing portion is caused to move in a direction other than lengthwise of said third slot.
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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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |