US 11,754,905 B2
Phased spatial light modulator for imaging
Jeffrey Matthew Kempf, Dallas, TX (US); Nirmal C. Warke, Saratoga, CA (US); David P. Magee, Allen, TX (US); Rahmi Hezar, Allen, TX (US); and Baher S. Haroun, Allen, TX (US)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Sep. 27, 2019, as Appl. No. 16/586,644.
Prior Publication US 2021/0096442 A1, Apr. 1, 2021
Int. Cl. G01S 17/08 (2006.01); G02F 1/29 (2006.01); G01S 7/481 (2006.01)
CPC G02F 1/292 (2013.01) [G01S 7/4814 (2013.01); G01S 17/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a phased spatial light modulator (SLM);
a coherent light source optically coupled to the phased SLM, the phased SLM controllable to generate a diffraction pattern in response to an identified region of interest;
a focusing element optically coupled to the phased SLM, the focusing element configured to project the diffraction pattern toward the region of interest; and
a range finder configured to receive a reflection from an object in the region of interest and in response determine a range of the object.