Patent · US Active

Planar semiconductor light source comprising downstream optical element

US11476384B2 · kind B2 · utility

0Cited by

2References

19Claims

0Family size

Assignee

Osram OLED GMBH · DE

Inventors

Ralph Bertram · Herzogenrath, DE
Norbert Harendt · Hutthurm, DE

Key dates

Filing date	Dec 11, 2018
Grant date	Oct 18, 2022
Priority date	—
Expiry date	Dec 11, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01L25/0753
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A light source is specified which comprises a planar semiconductor light source comprising a plurality of independently operable single emitters, wherein, during operation, each of the single emitters emits light via respective single luminous surface. Furthermore, the light source has a common optical element which is arranged directly downstream of the single emitters and which is embodied and intended to direct light from different single emitters into different solid angle regions, wherein the single emitters are arranged defocused with respect to the optical element and the individual light surfaces are imaged in a blurred manner by the optical element.

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