Patent US4038671A successfully refreshed from Google Patents.
US4038671A
Expired / Lapsed
US
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Photographic apparatus with two picture taking lenses
Assignee: Agfa Gevaert AG
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Filing: 1976-08-20
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Granted: 1977-07-26
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Expires: 1996-08-20
Abstract
Abstract A photographic apparatus, particularly a still camera, wherein two lenses having different focal lengths are pivotable about the axes of two shafts which are located diametrically opposite each other with respect to the axis of a third shaft which supports a two-armed lever. The mounts of the lenses are coupled to the adjacent arms of the lever by pin-and-slot connections, and the lever is pivotable by a reciprocable knob to move one of the lenses into register with the light-admitting aperture when the knob is moved in one direction and to move the other lens into register with the aperture when the knob is moved in the opposite direction. The lenses are installed in the camera body at the opposite sides of the aperture, and the body has stops which arrest the respective lenses in operative positions. The lever has cams which cooperate with a leaf spring to yieldably hold either of the two lenses in register with the aperture. The shafts for the lenses and the respective lenses are adjustable axially in parallelism with the optical axes of such lenses.
Inventors
- 👤 Rolf Schroder
- 👤 Reinhard Nicko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:52
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/02; G02B7/14; G02B7/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
127 words
In a photographic apparatus, a combination comprising a housing; means defining a light-admitting aperture in said housing; first and second picture taking lenses; first and second pivots mounted in said housing in parallelism with the optical axes of said lenses, said first and second lenses respectively having first and second mounts movable about the axes of said first and second pivots between first and second positions in which said first and second lenses respectively register with said aperture; and means for moving said mounts, including a displacing member, pivot means for said displacing member, said pivot means being mounted in said housing intermediate said first and second pivots, and first and second motion transmitting means respectively coupling said displacing member with said first and second lens mounts.
Claim 2
Dependent Claim
127 words
In a photographic apparatus, a combination comprising a housing; means defining a light-admitting aperture in said housing; first and second picture taking lenses; first and second pivots mounted in said housing in parallelism with the optical axes of said lenses, said first and second lenses respectively having first and second mounts movable about the axes of said first and second pivots between first and second positions in which said first and second lenses respectively register with said aperture; and means for moving said mounts, including a displacing member, pivot means for said displacing member, said pivot means being mounted in said housing intermediate said first and second pivots, and first and second motion transmitting means respectively coupling said displacing member with said first and second lens mounts.
Claim 3
Dependent Claim
39 words
A combination as defined in claim 1, wherein said lenses have different focal lengths and said first and second pivots are disposed diametrically opposite each other with respect to the axis of said pivot means for said displacing member.
Claim 4
Dependent Claim
57 words
A combination as defined in claim 1, wherein each of said motion transmitting means comprises a pin-and-slot connection and said displacing member is a lever having a first arm connected to said first lens mount and a second arm connected to said second lens mount so that said mounts turn in response to pivoting of said lever.
Claim 5
Dependent Claim
62 words
A combination as defined in claim 1, further comprising actuating means mounted in and accessible at the outside of said housing, said actuating means being movable relative to said housing and being operatively connected with said displacing member to move said lens mounts between said first and second positions in response to movement of said actuating means with respect to said housing.
Claim 6
Dependent Claim
26 words
A combination as defined in claim 1, further comprising stop means provided in said housing and abutting against that lens mount which registers with said aperture.
Claim 7
Dependent Claim
21 words
A combination as defined in claim 1, further comprising detent means for yieldably holding that mount which registers with said aperture.
Claim 8
Dependent Claim
63 words
A combination as defined in claim 6, wherein said detent means comprises a resilient element mounted in said housing and two cams provided on said displacing member, one of said cams being engaged by said resilient means in the first positions of said mounts and the other of said cams being engaged by said resilient means in the second positions of said mounts.
Claim 9
Dependent Claim
25 words
A combination as defined in claim 1, further comprising means for moving said first and second lenses in the axial direction of the respective pivots.
Claim 10
Dependent Claim
37 words
A combination as defined in claim 1, wherein said aperture is disposed in a plane which is substantially normal to the axis of said pivot means, said lenses being disposed at the opposite sides of said plane.
Claim 11
Dependent Claim
18 words
A combination as defined in claim 1, wherein said lenses are located in the interior of said housing.
References Cited (Backward Citations)
US3185061A
Cited
US3903537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |