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:
Feb. 21, 2023

Filed:

Feb. 10, 2021
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Gregory S. Pettitt, Sherman, TX (US);

John M. Ferri, Allen, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/00 (2006.01); G03B 21/20 (2006.01); G02B 5/26 (2006.01); G02B 27/28 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2033 (2013.01); G02B 5/26 (2013.01); G02B 27/283 (2013.01); G03B 21/2013 (2013.01);
Abstract

A system includes a red light emitting diode (LED), a blue LED, and a green LED. The system also includes a red laser, a first filter, a second filter, and a lens. The system includes a first optical path that includes the red LED, the red laser, the first filter, the second filter, and the lens, where the first filter has a filter response to transmit red light from the red laser and to reflect red light from the red LED. The system also includes a second optical path that includes the blue LED, the green LED, the second filter, and the lens, where the second filter has a filter response to transmit blue light from the blue LED, to transmit green light from the green LED, to reflect red light from the red laser, and to reflect red light from the red LED.


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