Patent · US Expired

Arrangement of optical elements in projection systems

US6963456B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

Carl Zeiss Jena GmbH · DE

Inventors

Juergen Koehler · Algermissen, DE
Rainer Schnell · Jena, DE
Guenther Benedix · Jena, DE
Eberhard Piehler · Jena, DE
Hans-Juergen Meissner · Jena, DE
Bjoern Hauer · Jena, DE

Key dates

Filing date	Apr 9, 2004
Grant date	Nov 8, 2005
Priority date	—
Expiry date	Apr 9, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG02B7/021
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to an arrangement of optical elements in projection systems, preferably in projection modules having a changeable focal width such as for the imaging of tilt mirror matrices or for the imaging of reflective, i.e. transmissive, LCDs, whereby the optical elements (2, 3) fixed in place in mechanical holders (6, 7) are arranged so that they can be positioned on a common optical axis (5) relative to one another.According to the invention, for the purpose of accommodating the mounted optical elements (2, 3, 4), a common carrier element (1) is provided.With a minimized number of optical and mechanical elements, both the construction lengths and the diameters of the overall arrangement are reduced so that inexpensive production is possible.

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