Invention Grant
- Patent Title: Illumination device
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Application No.: US17913567Application Date: 2021-03-26
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Publication No.: US11921311B2Publication Date: 2024-03-05
- Inventor: Takahiro Yoshikawa , Daisuke Hattori , Ryota Morishima
- Applicant: NITTO DENKO CORPORATION
- Applicant Address: JP Ibaraki
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Ibaraki
- Agency: WHDA, LLP
- Priority: JP 20057730 2020.03.27
- International Application: PCT/JP2021/012769 2021.03.26
- International Announcement: WO2021/193894A 2021.09.30
- Date entered country: 2022-09-22
- Main IPC: F21V8/00
- IPC: F21V8/00 ; G02F1/13357

Abstract:
Provided is a lighting apparatus having high light entrance efficiency with respect to a light guide plate, and being excellent in tint of light emitted from the light guide plate. The lighting apparatus of the present invention includes: an LED package; a light guide plate, which includes a main surface serving as a light emission surface, and a side surface serving as a light entrance surface, and which is arranged so that the side surface is opposed to the LED package; and a low-refractive index layer arranged between the LED package and the light guide plate.
Public/Granted literature
- US20230145275A1 ILLUMINATION DEVICE Public/Granted day:2023-05-11
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