US 12,218,294 B2
Light source device
Tsuyoshi Okahisa, Tokushima (JP); and Norimasa Yoshida, Komatsushima (JP)
Assigned to NICHIA CORPORATION, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on Sep. 2, 2022, as Appl. No. 17/902,649.
Application 16/984,449 is a division of application No. 16/296,133, filed on Mar. 7, 2019, granted, now 10,770,632, issued on Sep. 8, 2020.
Application 17/902,649 is a continuation of application No. 16/984,449, filed on Aug. 4, 2020, granted, now 11,469,356.
Claims priority of application No. 2018-043350 (JP), filed on Mar. 9, 2018; and application No. 2018-214731 (JP), filed on Nov. 15, 2018.
Prior Publication US 2022/0416134 A1, Dec. 29, 2022
Int. Cl. H01L 33/58 (2010.01); F21S 41/663 (2018.01); G03B 15/02 (2021.01); H01L 27/15 (2006.01); H01L 33/50 (2010.01); G03B 15/05 (2021.01)
CPC H01L 33/58 (2013.01) [F21S 41/663 (2018.01); G03B 15/02 (2013.01); H01L 27/156 (2013.01); H01L 33/507 (2013.01); G03B 15/05 (2013.01); G03B 2215/0567 (2013.01); G03B 2215/0592 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A light source device comprising:
a mounting board;
a plurality of light-emitting parts disposed on the mounting board, each of the plurality of light-emitting parts being configured to be individually turned on;
a light-shielding member defining an opening;
a light-guide member supported by the light-shielding member, the light-guide member comprising a Fresnel lens portion, wherein, in a top view, the Fresnel lens portion is located within an area of the opening of the light-shielding member; and
at least one convex lens spaced from an entirety of a lower surface of the light-guide member and located at least partially above the plurality of light emitting parts and below the Fresnel lens portion of the light-guide member;
wherein, in the top view, irradiation areas of the respective light-emitting parts are at least partially separated from each other.