US 12,241,608 B2
Light source device and light guide array unit
Tsuyoshi Okahisa, Tokushima (JP)
Assigned to Nichia Corporation, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on Mar. 27, 2023, as Appl. No. 18/190,348.
Application 18/190,348 is a continuation of application No. 18/188,574, filed on Mar. 23, 2023.
Application 18/188,574 is a continuation of application No. PCT/JP2021/035200, filed on Sep. 24, 2021.
Claims priority of application No. 2020-168014 (JP), filed on Oct. 2, 2020; application No. 2021-015305 (JP), filed on Feb. 2, 2021; and application No. 2021-096777 (JP), filed on Jun. 9, 2021.
Prior Publication US 2023/0228396 A1, Jul. 20, 2023
Int. Cl. F21S 41/265 (2018.01); F21L 4/02 (2006.01); F21S 41/153 (2018.01); F21V 5/00 (2018.01); F21V 7/00 (2006.01); F21V 7/09 (2006.01); F21Y 105/10 (2016.01); F21Y 105/12 (2016.01); F21Y 105/14 (2016.01); F21Y 105/16 (2016.01); F21Y 105/18 (2016.01); F21Y 115/10 (2016.01); G03B 15/05 (2021.01); G03B 15/06 (2021.01)
CPC F21S 41/265 (2018.01) [F21L 4/027 (2013.01); F21S 41/153 (2018.01); F21V 7/0075 (2013.01); F21V 7/0083 (2013.01); F21V 7/09 (2013.01); G03B 15/05 (2013.01); G03B 15/06 (2013.01); F21V 5/007 (2013.01); F21V 7/0091 (2013.01); F21Y 2105/10 (2016.08); F21Y 2105/12 (2016.08); F21Y 2105/14 (2016.08); F21Y 2105/16 (2016.08); F21Y 2105/18 (2016.08); F21Y 2115/10 (2016.08); G03B 2215/0503 (2013.01); G03B 2215/0567 (2013.01); G03B 2215/0582 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A light source device comprising:
a plurality of light source parts arranged in a planar array and configured to emit light, wherein:
each of the light source parts comprises a light-emitting element and a lens,
optical axis directions of the lenses are different from each other,
the plurality of light-emitting elements are configured to emit light passing through the lenses from the light source parts in an array in an irradiated region,
one or more of the plurality of light source parts are arranged in a placement region in a different arrangement from an arrangement of the light in the irradiated region, and
one or more of the plurality of light source parts arranged in the planar array each have a lens having an optical axis direction that is oriented in an irradiation direction partially inward from the one or more light source parts in a top view, is oblique with respect to a center axis of the placement region, and does not intersect the center axis of the placement region.