Title:
LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2023180176
Kind Code:
A
Abstract:
To provide a lighting device that uses a COB type LED to emit homogeneous light color.SOLUTION: A lighting device is composed of: a COB type LED; a condensing lens into which light emitted by the LED is made incident; and a disc washer-shaped optical component formed of a translucent material and arranged between the LED and the condensing lens, where light emitted from an outer edge part of the LED is reflected toward an outer peripheral direction by an inclined surface of a through hole of the optical component, light emitted from a center part of the LED passes through the through hole of the optical component and is made incident into the condensing lens, and light incident on the condensing lens is condensed and radiated, thereby emitting only a homogeneous light color.SELECTED DRAWING: Figure 1
Inventors:
MIWA DAIKI
Application Number:
JP2022093350A
Publication Date:
December 20, 2023
Filing Date:
June 08, 2022
Export Citation:
Assignee:
TOKI CORP
International Classes:
F21S2/00; F21V5/00; F21V5/04; F21V7/00; F21V7/22; F21V13/12; G02B5/00