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AssigneeLeica Camera AG
InventorsGerhard Kranz, Oliver Zielberg, Robert Denk, Ulrich Lies
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An interchangeable lens (1) with a locking device (2, 2′) for system cameras is described, wherein an orientation marking (4) for mounting the locking device (2, 2′) on the camera is provided at the end of the lens housing (3) facing the camera, and the contact surface (6) of the locking device (2, 2′) has a latching depression (8) at a distance from the orientation marking (4) counter to the direction (7) of rotation of the locking operation and the contact surface (6) contains at least two, preferably six, surface areas (10) which are situated next to one another in an isolated fashion at a distance from the latching depression (8) counter to the direction (7) of rotation within an angle segment of from 100° to 160°, preferably 110° to 150°, and can be detected individually by optical means.
Interchangeable lens with a locking device for system cameras, wherein an orientation marking for mounting the locking device on the camera is provided at the end of the lens housing facing the camera, and the contact surface of the locking device has a latching depression at a distance from the orientation marking counter to the direction of rotation of the locking operation, characterized in that the contact surface contains at least two, preferably six, surface areas which are situated next to one another in an isolated fashion at a distance from the latching depression counter to the direction of rotation within an angle segment of from 100° to 160°, preferably 110° to 150°, and can be detected individually by optical means.
Use of the surface areas in the contact surface of the locking device for encoding basic lens data, such as focal length and aperture ratio, and/or individual lens data, such as special correction values.
Dependencies are inferred from the claim text.