Patent · US Active

Projection system

US8500290B2 · kind B2 · utility

3Cited by

48References

16Claims

0Family size

Assignee

Carl Zeiss AG · DE

Inventors

Enrico Geissler · Jena, DE
Christoph Nieten · Jena, DE
Guenter Rudolph · Jena, DE
Marco Pretorius · Oberkochen, DE

Key dates

Filing date	Jun 23, 2009
Grant date	Aug 6, 2013
Priority date	—
Expiry date	Dec 21, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG03B21/008
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A projection system having a first tilting mirror matrix, a second tilting mirror matrix, and an imaging lens, which projects the first tilting mirror matrix onto the second tilting mirror matrix, wherein each tilting mirror matrix has multiple tilting mirrors, the tilting axes of which are positioned in a modulator surface plane. The imaging lens includes a first lens and an imaging mirror, and the imaging mirror forms an aperture stop of the imaging lens, wherein the aperture diaphragm includes an uneven angle of 90° together with the normal of the modulator surface of the first tilting mirror matrix without taking into account any optical path folds.

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