US Patent 11921311 Illumination device
Patent 11921311 was granted and assigned to Nitto Denko on March, 2024 by the United States Patent and Trademark Office.
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US Patent 11921311 Illumination device
Article
Patent 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.
Infobox
Is a
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Daisuke Hattori0
Ryota Morishima0
Takahiro Yoshikawa0
Date of Patent
March 5, 2024
0Patent Application Number
179135670
Date Filed
March 26, 2021
0Patent Citations
Patent Primary Examiner
CPC Code
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