US 12,169,277 B2
Display system with variable beam expansion for multiple lasers
Daniel Adema, Kitchener (CA); and Ian Andrews, Kitchener (CA)
Assigned to GOOGLE LLC, Mountain View, CA (US)
Filed by GOOGLE LLC, Mountain View, CA (US)
Filed on Jul. 13, 2021, as Appl. No. 17/374,078.
Prior Publication US 2023/0015702 A1, Jan. 19, 2023
Int. Cl. G02B 27/01 (2006.01); G02B 26/08 (2006.01); G02B 26/12 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 26/0816 (2013.01); G02B 26/123 (2013.01); G02B 2027/0178 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A laser projection system comprising:
an optical relay configured to receive and relay a first laser light beam and a second laser light beam and to apply respectively different levels of magnification to the first laser light beam and the second laser light beam to produce a first magnified laser light beam and a second magnified laser light beam, wherein the first laser light beam and the second laser light beam are angularly separated, the first magnified laser light beam and the second magnified laser light beam being scanned into the optical relay; and
a first scan mirror configured to receive the magnified first laser light beam and the magnified second laser light beam from the optical relay.