US 12,481,149 B2
Tapered mirror shaft
David Duff, Portola Valley, CA (US); Michael Brickner, Mountain View, CA (US); and Hugh Ross, San Francisco, CA (US)
Assigned to Waymo LLC, Mountain View, CA (US)
Filed by Waymo LLC, Mountain View, IL (US)
Filed on Dec. 16, 2021, as Appl. No. 17/644,717.
Prior Publication US 2023/0194854 A1, Jun. 22, 2023
Int. Cl. G02B 26/08 (2006.01); G01S 7/481 (2006.01); G01S 17/931 (2020.01)
CPC G02B 26/0816 (2013.01) [G01S 7/4817 (2013.01); G01S 17/931 (2020.01)] 12 Claims
OG exemplary drawing
 
1. A rotatable mirror assembly, comprising:
a shaft configured to rotate about a rotational axis, wherein at least a portion of the shaft comprises a tapered profile, wherein a surface of the shaft comprises at least one groove, and wherein the at least one groove is circumferentially-indented in the surface of the shaft;
a mirror body, wherein the mirror body is disposed in an integrated manner around the shaft, wherein the mirror body comprises a polygonal cross-section, and wherein the mirror body is coupled to the shaft based on the at least one groove; and
a plurality of reflective surfaces, wherein the reflective surfaces are disposed along at least one surface of the mirror body.