Patent · US Expired

Optical module and optical system

US7570439B2 · kind B2 · utility

8Cited by

9References

21Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Danut Bogdan · Timișoara, RO
Josef Dirmeyer · Pfarrkirchen, DE
Henryk Frenzel · Regensburg, DE
Harald Schmidt · Georgetown, CA

Key dates

Filing date	Sep 22, 2004
Grant date	Aug 4, 2009
Priority date	—
Expiry date	May 18, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH10F77/407
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An optical module has a circuit carrier, a housed semiconductor element disposed on the circuit carrier, and a lens unit for projecting electromagnetic radiation onto the semiconductor element. The lens unit preferably includes a lens assembly with, say, three lenses and a diaphragm. The lenses, optionally together with the diaphragm, are aligned in a well-defined manner due to their geometric design so that no additional optical adjustment is necessary. The lenses are held in a type of lens holder that is an integral component of the housing of the semiconductor element.

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