LED LIGHTING DEVICE, AND METHOD FOR EXTRACTING LIGHT OF LED LIGHTING DEVICE

Title:

LED LIGHTING DEVICE, AND METHOD FOR EXTRACTING LIGHT OF LED LIGHTING DEVICE

Document Type and Number:

WIPO Patent Application WO/2017/047811

Kind Code:

A1

Abstract:

A frame body (3) comprises an outer frame body (3b) made of a microfoam resin, and two inner frame bodies (3a) made of a microfoam resin. The two inner frame bodies (3a) are disposed side by side inside the outer frame body (3b). The inner frame bodies (3a) and the outer frame body (3b) are all provided with openings (27a, 27b) provided in the respective upper portions thereof, and concave sections (33a, 33b) formed facing downward from the openings (27a, 27b). An LED light source (23a) disposed inside a light-guide space (25a) radiates light in the light-guide space (25a) toward a light emission surface. Therefore, the light from the LED light source (23a) is emitted uniformly from a light extraction part (9a). Also, an LED light source (23b) disposed inside a light-guide space (25b) radiates light toward the light-guide space (25b). Therefore, the light from the LED light source (23b) is emitted uniformly from a light extraction part (9b).

Inventors:

INOUE SYOUTA (JP)
KUBOTA TETSUJI (JP)
YAMAMOTO SYUNJI (JP)
KOAIZAWA HISASHI (JP)
KAISE TOMIO (JP)

Application Number:

PCT/JP2016/077676

Publication Date:

March 23, 2017

Filing Date:

September 20, 2016

Export Citation:

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Assignee:

FURUKAWA ELECTRIC CO LTD (JP)
TOTOKU ELECTRIC (JP)

International Classes:

F21V15/01; F21S2/00; F21S8/00; F21V23/00; F21V23/04; G02B5/02; G02B5/10; F21Y115/10

Foreign References:

JP2001281425A	2001-10-10
JP2011065946A	2011-03-31
JPH11306810A	1999-11-05

Other References: