US3590714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic apparatus with two-way objective
Assignee: Steinheil Lear Siegler AG
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Filing: 1969-09-24
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Granted: 1971-07-06
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Expires: 1989-09-24
Abstract
Abstract An invertible objective can be connected to a ring-shaped holder on the body of a camera in two positions in one of which the holder conceals a manually operable selector for the aperture size. The diaphragm in the objective is closed in automatic response to attachment of the objective in the one position and the diaphragm is then coupled to the automatic exposure control in the camera body. When the objective is attached in the other position, the selector is accessible so that the desired aperture size can be set by hand.
Inventors
- 👤 Artur Schops
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:35
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/02; G03B9/07; G03B17/00; G03B17/02; G03B17/12; G03B17/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
135 words
In a photographic apparatus, a combination comprising a holder; an invertible two-way objective separably connectable With said holder in two different positions; diaphragm means provided in said objective and including blade means, setting means coupled with said blade means and movable from a cocked position to an uncocked position in which said blade means defines an aperture of predetermined size, and selector means cooperating with said setting means to select a plurality of additional positions for said blade means, said selector means being accessible to the user''s hand in one position of said objective with reference to said holder; and inactivating means provided on said holder and operative to effect movement of said setting means to uncocked position in response to connection of said objective with said holder in the other position of the objective.
Claim 2
Dependent Claim
135 words
In a photographic apparatus, a combination comprising a holder; an invertible two-way objective separably connectable With said holder in two different positions; diaphragm means provided in said objective and including blade means, setting means coupled with said blade means and movable from a cocked position to an uncocked position in which said blade means defines an aperture of predetermined size, and selector means cooperating with said setting means to select a plurality of additional positions for said blade means, said selector means being accessible to the user''s hand in one position of said objective with reference to said holder; and inactivating means provided on said holder and operative to effect movement of said setting means to uncocked position in response to connection of said objective with said holder in the other position of the objective.
Claim 3
Dependent Claim
71 words
A combination as defined in claim 1, wherein said selector means is movable by hand to an end position in which it permits movement of said setting means to uncocked position, and wherein said holder and said objective comprise complementary guide means which are movable into engagement with each other to permit connection of the objective in said other position upon movement of said selector means to said end position thereof.
Claim 4
Dependent Claim
79 words
A combination as defined in claim 1, further comprising locking means provided in said objective and operative to engage and retain said setting means in cocked position in the one position of said objective, disengaging means movably installed in said objective and movable by said inactivating means in response to connection of the objective in said other position thereof to thereby disengage said locking means from said setting means and means for biasing said setting means to uncocked position.
Claim 5
Dependent Claim
37 words
A combination as defined in claim 3, wherein said disengaging means comprises a follower and said inactivating means comprises a cam which engages and moves said follower during connection of said objective in said other position thereof.
Claim 6
Dependent Claim
53 words
A combination as defined in claim 1, wherein said holder comprises a projection and said objective comprises a housing having an external axially parallel groove and a circumferential groove, said projection travelling in said axially parallel groove and thereupon in said circumferential groove during connection of said objective in the other position thereof.
Claim 7
Dependent Claim
25 words
A combination as defined in claim 5, further comprising an exposure control having elements engaging said setting means in the other position of said objective.
Claim 8
Dependent Claim
72 words
A combination as defined in claim 1, further comprising locking means provided in said objective and operative to engage and retain said setting means in cocked position in the one position of said objective, disengaging means including a wire release connectable with said objective in said one position of the objective and actuatable to disengage said locking means from said setting means, and means for biasing said setting means to uncocked position.
Claim 9
Dependent Claim
85 words
A combination as defined in claim 1, wherein said objective comprises a housing and said selector means is movable in a recess provided therefor in said housing said diaphragm means further comprising biasing means for urging said setting means toward uncocked position and said selector means comprising stop means movable into the path of movement of said setting means from cocked toward uncocked position to thereby locate said setting means in an intermediate position in which said blade means defines an aperture of desired size.
Claim 10
Dependent Claim
92 words
A combination as defined in claim 8, wherein said housing is provided with external groove means and wherein said recess extends across said groove means, said selector means being movable in said recess to an end position in which said stop means thereof permits movement of said setting means to uncocked position and said holder including a projection which is free to move in said groove means across said recess during connection of the objective in said other position and subsequent to movement of said selector means to saiD end position thereof.
Claim 11
Dependent Claim
46 words
A combination as defined in claim 9, wherein said recess extends in the circumferential direction of said housing and said groove means includes two registering axially parallel grooves, said selector means being located between said axially parallel grooves on movement away from said end position thereof.
References Cited (Backward Citations)
US2381228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |