Patent · US Active

Variable filter compensation for high-aperture camera lenses

US8687290B2 · kind B2 · utility

21Cited by

4References

17Claims

0Family size

Assignee

Carl Zeiss AG · DE

Inventors

Dirk Jahn · Twistringen, DE
Vladan Blahnik · Aalen, DE

Key dates

Filing date	Jul 13, 2012
Grant date	Apr 1, 2014
Priority date	—
Expiry date	Jul 13, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG02B27/0025
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present invention relates to a lens or objective for a camera, more particularly for a digital camera, comprising a housing, an actuating element arranged on the housing, and a lens element system that can be set into a plurality of settings, wherein the lens element system is embodied in such a way that in at least one setting an f-number is F≦3. The lens element system is furthermore embodied in such a way that an actuation of the actuating element brings about a movement of two optical elements relative to one another, such that an intersection length difference of the lens element system can be set.

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