The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 16, 2021

Filed:

Oct. 16, 2020
Applicant:

Osram Gmbh, Munich, DE;

Inventors:

Alberto Alfier, Vedelago, IT;

Renato Frison, Chions, IT;

Assignee:

Osram GmbH, Munich, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 47/115 (2020.01); H05B 45/10 (2020.01); H01S 3/10 (2006.01); H05B 41/38 (2006.01);
U.S. Cl.
CPC ...
H05B 47/115 (2020.01); H01S 3/10038 (2013.01); H05B 41/38 (2013.01); H05B 45/10 (2020.01);
Abstract

A lighting apparatus, for example for applications in the show-business or entertainment sector, including: a light-radiation generator, for example a laser generator, configured for projecting a lighting beam towards a lighting space in a certain direction; control circuitry of the light-radiation generator configured for controlling emission of the lighting beam by the light-radiation generator; and processing circuitry configured for calculating a thermal retinal radiance ratio of the light-radiation generator as a function of a distance from the light-radiation generator in the aforesaid direction and for acting on the control circuitry of the light-radiation generator in order to control the lighting beam of the light-radiation generator as a function of the thermal retinal radiance ratio, with the aim of maintaining the aforesaid thermal retinal radiance ratio below unity starting from a certain value of distance from the light-radiation generator in the aforesaid direction.


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