US 12,111,210 B2
Light source modules for noise mitigation
Mark Alan Arbore, Los Altos, CA (US); Thomas C. Greening, San Jose, CA (US); and Yongming Tu, Redwood City, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jul. 7, 2022, as Appl. No. 17/859,912.
Claims priority of provisional application 63/219,483, filed on Jul. 8, 2021.
Prior Publication US 2023/0012376 A1, Jan. 12, 2023
Int. Cl. G01J 3/02 (2006.01); G01J 3/10 (2006.01); G01J 3/18 (2006.01); G01J 3/32 (2006.01); G01J 3/45 (2006.01); G02B 6/293 (2006.01); G02B 6/42 (2006.01); G02B 27/10 (2006.01); G02F 1/21 (2006.01)
CPC G01J 3/0297 (2013.01) [G01J 3/10 (2013.01); G01J 3/108 (2013.01); G01J 3/1809 (2013.01); G01J 3/32 (2013.01); G01J 3/45 (2013.01); G02B 6/2938 (2013.01); G02B 6/4215 (2013.01); G02B 27/10 (2013.01); G01J 2003/102 (2013.01); G02F 1/212 (2021.01)] 10 Claims
OG exemplary drawing
 
1. A light source module having a set of outputs comprising:
a plurality of pairs of light sources that collectively form a set of paired light sources having a first light source subset and a second light source subset, wherein each of the plurality of pairs of light sources comprises:
a first light source configured to output light at a corresponding first wavelength, the first light source being part of the first light source subset; and
a second light source configured to output light at a corresponding second wavelength that is different from the first wavelength and separated from the first wavelength by an amount that is less than a target separation amount of about 5 nanometers, the second light source being part of the second light source subset;
a first multiplexer optically connected to the first light source subset and configured to multiplex light received from the first light source subset;
a second multiplexer optically connected to the first light source subset and configured to multiplex light received from the second light source subset; and
a multiplexing unit configured to optically connect an output of the first multiplexer and an output of the second multiplexer to the set of outputs.