US 12,001,044 B2
Light emitting module and planar light source
Takuya Nakabayashi, Tokushima (JP); Daisuke Iwakura, Komatsushima (JP); Yoichi Bando, Anan (JP); Yasunori Shinomiya, Tokushima (JP); and Satoshi Yoshinaga, Tokushima (JP)
Assigned to NICHIA CORPORATION, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on Oct. 14, 2022, as Appl. No. 18/046,907.
Claims priority of application No. 2021-169249 (JP), filed on Oct. 15, 2021.
Prior Publication US 2023/0116946 A1, Apr. 20, 2023
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/0045 (2013.01) [G02B 6/0055 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light emitting module comprising:
a light source;
a light guide member configured to transmit light from the light source, the light guide member having an upper surface and a lower surface opposite to the upper surface, the light guide member defining a hole with the light source being arranged inside the hole;
a first light reflective member arranged on a lower surface side of the light guide member, the first light reflective member having a lower surface, the first light reflective member including
a first resin, and
a first reflective body having a refractive index higher than a refractive index of the first resin; and
a second light reflective member arranged on a lower surface side of the first light reflective member, the second light reflective member including
a second resin, and
a second reflective body having a refractive index lower than a refractive index of the second resin.