Optical module and optical system
US7679156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2004 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Sep 14, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical module has a circuit carrier, a housed semiconductor element placed on the circuit carrier, and a lens unit for projecting electromagnetic radiation onto the semiconductor element. The lens unit, which is constructed separate from the cased semiconductor element, preferably comprises a lens assembly formed of, for example, three lenses and of a diaphragm. The three 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. According to the invention, a support is formed, at least in sections, on the case of the semiconductor element, and the lens unit is placed thereon thus being supported. The concept is that by forming a support directly on the case of a cased semiconductor element even with classically cased semiconductor chips, it is possible to construct a camera module with which every mechanical focus setting can be eliminated. The novel system is particularly suited for use in the interior or exterior of a motor vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.