US 12,188,648 B2
Lighting device for a storage compartment having a cover with diffuse reflective recesses and emission protrusions
Yui Kumon, Sakai (JP); and Masaru Misumi, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 18/038,299
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
PCT Filed Nov. 25, 2021, PCT No. PCT/JP2021/043148
§ 371(c)(1), (2) Date May 23, 2023,
PCT Pub. No. WO2022/114049, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 2020-195429 (JP), filed on Nov. 25, 2020.
Prior Publication US 2023/0408061 A1, Dec. 21, 2023
Int. Cl. F21V 3/04 (2018.01); F21V 33/00 (2006.01); F25D 27/00 (2006.01); F21W 131/305 (2006.01)
CPC F21V 3/049 (2013.01) [F21V 33/0044 (2013.01); F25D 27/00 (2013.01); F21W 2131/305 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A cover provided in an interior of a storage compartment and including a light incident portion on which light emitted by a light source is incident, the cover comprising:
a light exit portion including a protrusion formed on a front surface facing the interior of the storage compartment, the light exit portion being configured to cause the light to exit to the interior of the storage compartment; and
a light reflection diffusion portion formed on a back side of the light exit portion at a back surface facing a side of the light source, the light reflection diffusion portion including a plurality of recesses, each of the plurality of recesses having an inner peripheral surface and being configured to direct the light toward the protrusion,
wherein the light reflection diffusion portion further includes, in a region of the back surface in which the plurality of recesses are formed, an inclined portion that approaches the front surface further downstream in a travel direction of the light.