Patent · US Active

Illumination unit

US8731392B2 · kind B2 · utility

1Cited by

7References

6Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Joerg Sorg · Regensburg, DE
Stefan Gruber · Bad Abbach, DE

Key dates

Filing date	Apr 16, 2009
Grant date	May 20, 2014
Priority date	—
Expiry date	Apr 16, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04M1/22
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A luminous unit (1) for an optical recording device (13) comprising a light source (2) for generating radiation and a partly reflective element, which is disposed downstream of the light source (2) in a main emission direction (H) and subdivides a space into a first half-space facing the light source (2) and a second half-space remote from the light source (2), wherein the partly reflective element at least partly transmits the radiation coming from the light source (2) from the first half-space and at least partly reflects the external radiation coming from an opposite direction from the second half-space.

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