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:
Mar. 10, 2026

Filed:

Dec. 24, 2024
Applicant:

Lumileds Llc, San Jose, CA (US);

Inventors:

Sudipta Romen Biswas, Santa Clara, CA (US);

Yu-Chen Shen, Sunnyvale, CA (US);

Grigoriy Basin, San Francisco, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 15/05 (2021.01);
U.S. Cl.
CPC ...
G03B 15/05 (2013.01); G03B 2215/0503 (2013.01); G03B 2215/0592 (2013.01);
Abstract

A microlens array comprises an array of microlenses on a flat base. A spacer located along the periphery of the microlens array protrudes away from the plane of the base. The microlens array may be arranged in combination with one or more LEDs or pcLEDs with the spacer positioned between the microlens array and the LEDs or pcLEDs and thus spacing the microlenses away from the LED or pcLEDs. Arranged in this manner, the surface of the microlens array facing the LEDs or pcLEDs and light emitting surfaces of the LEDs or pcLEDs together define an air filled or evacuated gap between the microlens array and the LEDs or pcLEDs, which improves the performance of the microlens array in collimating or partially collimating light emitted by the LEDs or pcLEDs.


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