Patent · US Active

Interchangeable lens with optically readable marking

US7625144B2 · kind B2 · utility

35Cited by

9References

6Claims

0Family size

Assignee

Leica Camera AG · DE

Inventors

Gerhard Kranz · Wetzlar, DE
Oliver Zielberg · Wetzlar, DE
Robert Denk · Grafing, DE
Ulrich Lies · Wetzlar, DE

Key dates

Filing date	Jan 16, 2007
Grant date	Dec 1, 2009
Priority date	—
Expiry date	Dec 15, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG03B17/18
WIPO fieldOptics
WIPO sectorInstruments

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.