US 12,468,147 B2
Multi-beam laser beam scanner in a picture generation unit
Boris Kirillov, Gratwein-Straßengel (AT); Maximilian Werner, Fischach (DE); and Roland Richter, Puchheim (DE)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Sep. 2, 2022, as Appl. No. 17/929,381.
Prior Publication US 2024/0077719 A1, Mar. 7, 2024
Int. Cl. G02B 26/08 (2006.01); G02B 26/10 (2006.01); G02B 26/12 (2006.01); H04B 10/50 (2013.01)
CPC G02B 26/123 (2013.01) [G02B 26/0833 (2013.01); G02B 26/101 (2013.01); H04B 10/50 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A picture generation system, comprising:
a plurality of red-green-blue (RGB) light transmitters configured to synchronously generate respective pixel light beams and transmit the respective pixel light beams along respective transmission paths to be projected into a full field of view (FOV), wherein the full FOV is divided into a plurality of FOV sections that are respectively paired with a different one of the plurality of RGB light transmitters such that each of the plurality of RGB light transmitters transmits light into a respective area defined by a respective FOV section of the plurality of FOV sections;
a scanning system arranged on each of the respective transmission paths of the plurality of RGB light transmitters, the scanning system comprising at least one scanning structure that enables the scanning system to simultaneously steer the respective pixel light beams into the plurality of FOV sections, wherein the scanning system is configured to direct each of the respective pixel light beams into a different one of the plurality of FOV sections according to a scanning pattern; and
a controller configured to modulate a power output of each RGB light transmitter of the plurality of RGB light transmitters over the scanning pattern such that the power output of the plurality of RGB light transmitters is set lower when targeting edge regions of the plurality of FOV sections and the power output of the plurality of RGB light transmitters is set higher when targeting center regions of the plurality of FOV sections.