Back to results
US 4,070,686 AGranted
Camera with adjustable objective
AssigneeBalda-Werke Photographische Gerate & Kunststoff GmbH. & Co. KG
InventorKarl-Heinz Lange
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeBalda-Werke Photographische Gerate & Kunststoff GmbH. & Co. KG
InventorKarl-Heinz Lange
Estimating the term…
A camera is provided with an objective supported by a housing of the camera or movement along its optical axis. A movable member is guided by the camera housing for movement transversely with respect to the optical axis, and this movable member has a pair of inclined surfaces. These inclined surfaces are inclined both with respect to the optical axis and with respect to the direction of movement of the movable member. A pair of pressing members respectively press against the inclined surfaces of the movable member, a pair of springs acting on the pair of pressing members for urging them against the inclined surfaces, respectively, so that the latter surfaces are slidable with respect to the pressing members engaging the same. One of these pressing members is fixed to the objective so that when the movable member is moved transversely with respect to the optical axis this one pressing member in cooperation with the inclined surface engaging the same will bring about adjustment of the objective along its optical axis. The arrangement of the pair of inclined surfaces of the movable member is such that at all times, irrespective of the position of the movable member, the spring-pressed pressing members provide equal and opposite forces in the direction of movement of the movable member.
In a camera, objective means having an optical axis, housing means guiding said objective means for movement along said optical axis thereof, movable means guided by said housing means transversely with respect to said optical axis, a pair of inclined surface means connected with and forming part of said movable means and each being inclined both with respect to the direction of movement of said movable means and with respect to said optical axis, a pair of pressing means respectively pressing against and slidably engaging said pair of inclined surface means, one of said pressing means being fixed to said objective means, and a pair of spring means respectively connected operatively with said pair of pressing means for respectively urging the latter against said pair of inclined surface means, said movable means when moved transversely with respect to said optical axis acting through one of said inclined surface means on said one pressing means which is fixed to said objective means for moving the latter along said optical axis, and said pair of inclined surface means respectively cooperating with said pair of pressing means for providing at all positions of said movable means equal and opposite forces in the direction of movement of said movable means.
Dependencies are inferred from the claim text.