US 12,204,132 B2
Display system having a plurality of light pipes for a plurality of light emitters
Kevin Curtis, Boulder, CO (US); Heidi Leising Hall, Webster, NY (US); Pierre St. Hilaire, Belmont, CA (US); and David Tinch, Fort Lauderdale, FL (US)
Assigned to MAGIC LEAP, INC., Plantation, FL (US)
Filed by Magic Leap, Inc., Plantation, FL (US)
Filed on Sep. 9, 2020, as Appl. No. 17/016,014.
Application 17/016,014 is a division of application No. 15/442,564, filed on Feb. 24, 2017, granted, now 10,775,545.
Claims priority of provisional application 62/300,749, filed on Feb. 26, 2016.
Prior Publication US 2020/0408981 A1, Dec. 31, 2020
Int. Cl. G02B 27/00 (2006.01); F21V 8/00 (2006.01); G02B 6/34 (2006.01); G02B 19/00 (2006.01); G02B 27/01 (2006.01); G02B 27/14 (2006.01)
CPC G02B 6/0028 (2013.01) [G02B 6/0006 (2013.01); G02B 6/001 (2013.01); G02B 6/0025 (2013.01); G02B 6/0036 (2013.01); G02B 6/005 (2013.01); G02B 6/0068 (2013.01); G02B 6/0076 (2013.01); G02B 6/34 (2013.01); G02B 19/0028 (2013.01); G02B 27/0081 (2013.01); G02B 27/0172 (2013.01); G02B 27/141 (2013.01); G02B 2027/0114 (2013.01); G02B 2027/0134 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0194 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for forming an optical device, the method comprising:
forming a light pipe with one or more sidewalls, at least one of which includes a roughened sidewall surface, wherein the light pipe comprises a first end having a light input surface and a second end having a light output surface, wherein the light input surface is opposite the light output surface to define a length along the one or more sidewalls between the light input surface and the light output surface, wherein the roughened sidewall surface extends from the first end to the second end and is nonparallel to each of the light input surface and the light output surface, wherein the length between the light input surface and the light output surface is greater than a width orthogonal to the length between the one or more sidewalls; and
coupling the light pipe with the roughened sidewall surface to a light emitter; and
coupling an assembly comprising the light pipe with the roughened sidewall surface and the light emitter to a spatial light modulator,
wherein the light input surface is configured to receive light from the light emitter and wherein the light output surface is configured to output light through the light output surface to the spatial light modulator.