Patent · US Active

Method of designing optical systems and corresponding optical system

US8694287B2 · kind B2 · utility

0Cited by

4References

13Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Simone Capeleto · Padova, IT
Katrin Schroll · Matzing, DE
Simon Schwalenberg · Regensburg, DE
Ulrich Streppel · Regensburg, DE

Key dates

Filing date	Oct 7, 2009
Grant date	Apr 8, 2014
Priority date	—
Expiry date	Nov 7, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An optical system including at least one light source, such as a LED source (10), and an optics (30) subjected to aging as a result of exposure to the light source (10) is designed by: defining an aging model for the optics (30), defining a thermal model for the light source (10, 100) as a spatial function representative of the temperature generated by the light source (10, 100), and defining the distance of the optics (30) from the light source (10) as a function of the aging model and the thermal model. The optical overall system (single or multiple reflector and lens) is finally optimised starting from the results achieved in the previous steps.

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