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US3701309A Expired / Lapsed US ⏱️ 0.0 years remaining

Photographic camera with motorized focal length and distance adjustment of the objective

Assignee: Zeiss Ikon AG
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Filing: 1970-11-02
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Granted: 1972-10-31
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Expires: 1990-11-02
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Abstract

Abstract A photographic camera is provided with an objective whose focal length and distance are adjusted by a motorized control device which includes at least one one-armed lever pivotally supported at one end in the camera housing and having at its other free end a manually operable handle for initiating the operation of two motors, one of which effects an adjustment of the focal length while the other effects a distance adjustment of the objective. In one embodiment of the invention two one-armed levers are employed which are disposed parallel to one another and are operatively connected with each other in such a manner that either one of the same may be used to effect a motorized adjustment of the focal length and the distance of the camera. The free ends of these two one-armed levers extend horizontally in opposite directions and each of said free ends has an operating handle attached thereto. In another embodiment of the invention the one-armed lever is provided with a handle which is slidable along the outer camera wall and carries an actuating member for a switch which controls a focusing motor. A second handle which is axially movable into a recess of the first handle is operatively connected with a slidable member which is slidably and also pivotally mounted on a stationary pin in the camera housing. When the second handle is pushed into the first handle the slidable member operates a switch which controls a focal length adjusting motor.

Inventors

  • 👤 Heinz Thiele
  • 👤 Dietrich Becker
  • 👤 Roland Hochstein
  • 👤 Horst Rockstroh
  • 👤 Hans Lieckfeldt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 10:11
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/12; G03B17/14

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 391 words
Photographic camera with an objective provided with a motorized focal length and distance adjusting means, including means which focuses the objective and provides an impulse for automatically adjusting the objective toward the long focal length, said means comprising an operating handle (6, 49, 51) for initiating a motorized focusing of the objective, and focal length adjusting means (17, 18, 21, 30, 31, 39) operatively connected with said handle, said handle when being operated to cause a motorized focusing of the objective effecting also an adjustment of said objective toward the longer focal length, regardless of what direction the focusing movement takes place, said above mentioned handle being attached to the free end of a one-armed lever (4, 5) this lever being pivoted adjacent to its other end, an actuating member (8) carried by said lever, a switch (9) for a focusing motor, said switch being arranged to be operated by said actuating member, another actuating member (17, 18, 21), another switch (25) for a focal length adjusting motor and operable by said other actuating member, said one-armed lever being provided between its ends with two spaced abutments (17, 18) and forming a slot therebetween in said one-armed lever, a rotatable coupling member (21) for bridging said two abutments and operatively connected with said other switch for the focal length adjusting motor, a stationary pivot pin on which said rotatable coupling member is mounted, spring means on said pivot pin for causing oppositely arranged parallel limiting surfaces (27,28) formed by a recess (26) in said coupling member (21) to engage one of the said abutments at a time, the distance between said parallel limiting surfaces of said recess being so dimensioned that in cooperation with said abutments (17, 18) on said one-armed lever sufficient clearaNce for the switching movement of said one-armed lever for starting and stopping of the focusing motor and the focal length adjusting motor is provided, said actuating member (8) for the first mentioned switch (9) of said focusing motor assuming in the rest position a center position with respect to said first mentioned switch (9) so that upon movement of said one-armed lever in one direction the focusing motor is started to rotate in one direction while upon movement of said one-armed lever in the other direction said focusing motor is caused to rotate in the other direction.
Claim 2
Dependent Claim 391 words
Photographic camera with an objective provided with a motorized focal length and distance adjusting means, including means which focuses the objective and provides an impulse for automatically adjusting the objective toward the long focal length, said means comprising an operating handle (6, 49, 51) for initiating a motorized focusing of the objective, and focal length adjusting means (17, 18, 21, 30, 31, 39) operatively connected with said handle, said handle when being operated to cause a motorized focusing of the objective effecting also an adjustment of said objective toward the longer focal length, regardless of what direction the focusing movement takes place, said above mentioned handle being attached to the free end of a one-armed lever (4, 5) this lever being pivoted adjacent to its other end, an actuating member (8) carried by said lever, a switch (9) for a focusing motor, said switch being arranged to be operated by said actuating member, another actuating member (17, 18, 21), another switch (25) for a focal length adjusting motor and operable by said other actuating member, said one-armed lever being provided between its ends with two spaced abutments (17, 18) and forming a slot therebetween in said one-armed lever, a rotatable coupling member (21) for bridging said two abutments and operatively connected with said other switch for the focal length adjusting motor, a stationary pivot pin on which said rotatable coupling member is mounted, spring means on said pivot pin for causing oppositely arranged parallel limiting surfaces (27,28) formed by a recess (26) in said coupling member (21) to engage one of the said abutments at a time, the distance between said parallel limiting surfaces of said recess being so dimensioned that in cooperation with said abutments (17, 18) on said one-armed lever sufficient clearaNce for the switching movement of said one-armed lever for starting and stopping of the focusing motor and the focal length adjusting motor is provided, said actuating member (8) for the first mentioned switch (9) of said focusing motor assuming in the rest position a center position with respect to said first mentioned switch (9) so that upon movement of said one-armed lever in one direction the focusing motor is started to rotate in one direction while upon movement of said one-armed lever in the other direction said focusing motor is caused to rotate in the other direction.
Claim 3
Dependent Claim 525 words
Photographic camera with an objective provided with a motorized focal length and distance adjusting means, including means which focuses the objective and provides an impulse for automatically adjusting the objective toward the long focal length, said means comprising an operating handle (6, 49, 51) for initiating a motorized focusing of the objective, and focal length adjusting means (17, 18, 21, 30, 31, 39) operatively connected with said handle, said handle when being operated to cause a motorized focusing of the objective effecting also an adjustment of said objective toward the longer focal length, regardless of what direction the focusing movement takes place, said above mentioned handle being attached to the free end of a one-armed lever (4, 5) this lever being pivoted adjacent to its other end, an actuating member (8) carried by said lever, a switch (9) for a focusing motor, said switch being arranged to be operated by said actuating member, another actuating member (17, 18, 21), another switch (25) for a focal length adjusting motor and operable by said other actuating member, said one-armed lever being provided between its ends with two spaced abutments (17, 18) and forming a slot therebetween in said one-armed lever, a rotatable coupling member (21) for bridging said two abutments and operatively connected with said other switch for the focal length adjusting motor, a stationary pivot pin on which said rotatable coupling member is mounted, spring means on said pivot pin for causing oppositely arranged parallel limiting surfaces (27,28) formed by a recess (26) in said coupling member (21) to engage one of the said abutments at a time, the distance between said parallel limiting surfaces of said recess being so dimensioned that in cooperation with said abutments (17, 18) on said one-armed lever sufficient clearance for the switching movement of said one-armed lever for starting and stopping of the focusing motor and the focal length adjusting motor is provided, said actuating member (8) for the first mentioned switch (9) of said focusing motor assuming in the rest position a center position with respect to said first mentioned switch (9) so that upon movement of said one-armed lever in one direction the focusing motor is started to rotate in one direction while upon movement of said one-armed lever in the other direction said focusing motor is caused to rotate in the other direction, and two one-armed levers arranged parallel and adjacent each other, means for pivotally mounting opposite ends of said one-armed levers in the housing of the camera, handles attached to each free end of said one-armed levers, a pin and slot connection connecting said one-armed levers between the ends thereof, said one-armed levers being adapted to selectively effect a motorized focusing of said objective, one of said one-armed levers being provided with two outwardly extending tongues forming abutments, a rotatable coupling member (21) bridging said two abutments and having a recess with limiting surface adapted to engage one said abutments at a time, an actuating member on one of said two one-armed levers for operating a switch for a focusing motor, and means for operatively connecting said coupling member with said focal length adjusting means.
Claim 4
Dependent Claim 525 words
Photographic camera with an objective provided with a motorized focal length and distance adjusting means, including means which focuses the objective and provides an impulse for automatically adjusting the objective toward the long focal length, said means comprising an operating handle (6, 49, 51) for initiating a motorized focusing of the objective, and focal length adjusting means (17, 18, 21, 30, 31, 39) operatively connected with said handle, said handle when being operated to cause a motorized focusing of the objective effecting also an adjustment of said objective toward the longer focal length, regardless of what direction the focusing movement takes place, said above mentioned handle being attached to the free end of a one-armed lever (4, 5) this lever being pivoted adjacent to its other end, an actuating member (8) carried by said lever, a switch (9) for a focusing motor, said switch being arranged to be operated by said actuating member, another actuating member (17, 18, 21), another switch (25) for a focal length adjusting motor and operable by said other actuating member, said one-armed lever being provided between its ends with two spaced abutments (17, 18) and forming a slot therebetween in said one-armed lever, a rotatable coupling member (21) for bridging said two abutments and operatively connected with said other switch for the focal length adjusting motor, a stationary pivot pin on which said rotatable coupling member is mounted, spring means on said pivot pin for causing oppositely arranged parallel limiting surfaces (27,28) formed by a recess (26) in said coupling member (21) to engage one of the said abutments at a time, the distance between said parallel limiting surfaces of said recess being so dimensioned that in cooperation with said abutments (17, 18) on said one-armed lever sufficient clearance for the switching movement of said one-armed lever for starting and stopping of the focusing motor and the focal length adjusting motor is provided, said actuating member (8) for the first mentioned switch (9) of said focusing motor assuming in the rest position a center position with respect to said first mentioned switch (9) so that upon movement of said one-armed lever in one direction the focusing motor is started to rotate in one direction while upon movement of said one-armed lever in the other direction said focusing motor is caused to rotate in the other direction, and two one-armed levers arranged parallel and adjacent each other, means for pivotally mounting opposite ends of said one-armed levers in the housing of the camera, handles attached to each free end of said one-armed levers, a pin and slot connection connecting said one-armed levers between the ends thereof, said one-armed levers being adapted to selectively effect a motorized focusing of said objective, one of said one-armed levers being provided with two outwardly extending tongues forming abutments, a rotatable coupling member (21) bridging said two abutments and having a recess with limiting surface adapted to engage one said abutments at a time, an actuating member on one of said two one-armed levers for operating a switch for a focusing motor, and means for operatively connecting said coupling member with said focal length adjusting means.
Claim 5
Dependent Claim 32 words
Camera according to claim 2, including a return spring (36) operatively connected with at least one of said one-armed levers which maintains said levers when Not operated in a central rest position.
Claim 6
Dependent Claim 617 words
Photographic camera with an objective provided with a motorized focal length and distance adjusting means, including means which focuses the objective and provides an impulse for automatically adjusting the objective toward the long focal length, said means comprising an operating handle (6, 49, 51) for initiating a motorized focusing of the objective, and focal length adjusting means (17, 18, 21, 30, 31, 39) operatively connected with said handle, said handle when being operated to cause a motorized focusing of the objective effecting also an adjustment of said objective toward the longer focal length, regardless of what direction the focusing movement takes place, said above mentioned handle being attached to the free end of a one-armed lever (4, 5) this lever being pivoted adjacent to its other end, an actuating member (8) carried by said lever, a switch (9) for a focusing motor, said switch being arranged to be operated by said actuating member, another actuating member (17, 18, 21), another switch (25) for a focal length adjusting motor and operable by said other actuating member, said one-armed lever being provided between its ends with two spaced abutments (17, 18) and forming a slot therebetween in said one-armed lever, a rotatable coupling member (21) for bridging said two abutments and operatively connected with said other switch for the focal length adjusting motor, a stationary pivot pin on which said rotatable coupling member is mounted, spring means on said pivot pin for causing oppositely arranged parallel limiting surfaces (27, 28) formed by a recess (26) in said coupling member (21) to engage one of the said abutments at a time, the distance between said parallel limiting surfaces of said recess being so dimensioned that in cooperation with said abutments (17, 18) on said one-armed lever sufficient clearance for the switching movement of said one-armed lever for starting and stopping of the focusing motor and the focal length adjusting motor is provided, said actuating member (8) for the first mentioned switch (9) of said focusing motor assuming in the rest position a center position with respect to said first mentioned switch (9) so that upon movement of said one-armed lever in one direction the focusing motor is started to rotate in one direction while upon movement of said one-armed lever in the other direction said focusing motor is caused to rotate in the other direction, said operating handle comprising two separate handle members, one inner one and an outer one, of which the inner one is adapted to axially move into the other outer member a spring for urging one said handle in a direction to move it away from the other handle member, a slidable member arranged within the housing of the camera and operatively connected with one of its ends with the inner handle member, a bearing pin within said housing for slidable and rotatably supporting the other end of said slidable member, said outer handle member being movably mounted on an outer wall of said housing in a direction transverse to the longitudinal direction of movement of said slidable member, a switch (43) associated with an actuating member (42) on said slidable member for starting and stopping the motor which performs the focusing of the objective and to cause a rotation of said motor selectively in one and the other direction when said outer handle member is moved along said outer wall, another switch (54) in said housing associated with the motor for adjusting the focal length of said objective, said other switch being operated by said slidable member to control the operation of said focal length adjusting motor when said inner handle member is pushed against the action of said spring into said outer handle member.
Claim 7
Dependent Claim 617 words
Photographic camera with an objective provided with a motorized focal length and distance adjusting means, including means which focuses the objective and provides an impulse for automatically adjusting the objective toward the long focal length, said means comprising an operating handle (6, 49, 51) for initiating a motorized focusing of the objective, and focal length adjusting means (17, 18, 21, 30, 31, 39) operatively connected with said handle, said handle when being operated to cause a motorized focusing of the objective effecting also an adjustment of said objective toward the longer focal length, regardless of what direction the focusing movement takes place, said above mentioned handle being attached to the free end of a one-armed lever (4, 5) this lever being pivoted adjacent to its other end, an actuating member (8) carried by said lever, a switch (9) for a focusing motor, said switch being arranged to be operated by said actuating member, another actuating member (17, 18, 21), another switch (25) for a focal length adjusting motor and operable by said other actuating member, said one-armed lever being provided between its ends with two spaced abutments (17, 18) and forming a slot therebetween in said one-armed lever, a rotatable coupling member (21) for bridging said two abutments and operatively connected with said other switch for the focal length adjusting motor, a stationary pivot pin on which said rotatable coupling member is mounted, spring means on said pivot pin for causing oppositely arranged parallel limiting surfaces (27, 28) formed by a recess (26) in said coupling member (21) to engage one of the said abutments at a time, the distance between said parallel limiting surfaces of said recess being so dimensioned that in cooperation with said abutments (17, 18) on said one-armed lever sufficient clearance for the switching movement of said one-armed lever for starting and stopping of the focusing motor and the focal length adjusting motor is provided, said actuating member (8) for the first mentioned switch (9) of said focusing motor assuming in the rest position a center position with respect to said first mentioned switch (9) so that upon movement of said one-armed lever in one direction the focusing motor is started to rotate in one direction while upon movement of said one-armed lever in the other direction said focusing motor is caused to rotate in the other direction, said operating handle comprising two separate handle members, one inner one and an outer one, of which the inner one is adapted to axially move into the other outer member a spring for urging one said handle in a direction to move it away from the other handle member, a slidable member arranged within the housing of the camera and operatively connected with one of its ends with the inner handle member, a bearing pin within said housing for slidable and rotatably supporting the other end of said slidable member, said outer handle member being movably mounted on an outer wall of said housing in a direction transverse to the longitudinal direction of movement of said slidable member, a switch (43) associated with an actuating member (42) on said slidable member for starting and stopping the motor which performs the focusing of the objective and to cause a rotation of said motor selectively in one and the other direction when said outer handle member is moved along said outer wall, another switch (54) in said housing associated with the motor for adjusting the focal length of said objective, said other switch being operated by said slidable member to control the operation of said focal length adjusting motor when said inner handle member is pushed against the action of said spring into said outer handle member.
Claim 8
Dependent Claim 39 words
Camera according to claim 4, in which said first named switch (43) is provided with spring means for maintaining said actuating member (42) on said slidable member (39) in a central position in which the focusing motor is inoperatIve.
Claim 9
Dependent Claim 37 words
Camera according to claim 4, in which said other switch (54) is adapted to be operated by the end of said slidable member which is opposite that end which is operatively connected with said inner handle member.

References Cited (Backward Citations)

US3158076A Cited
US3561343A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-31 1976-05-01 1976-10-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-31 1980-05-01 1980-10-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-31 1984-05-01 1984-10-31 $7700.00 Window Closed / Lapsed

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