Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
Japanese Patent JP2020042962
Kind Code:
A
Abstract:
To provide a narrow-width light-emitting device to be used as a linear light source using a stick type light guide and having waterproofness.SOLUTION: According to one embodiment of the present invention, a light-emitting device 1 includes: a light emitting element 14; a stick type light guide 10 having a light guide region 10a and a lens region 10b continued between both ends in which the light guide region 10a is a region for propagating light emitted from the light-emitting element 14 to the inside and the lens region 10b is a region having a light extraction surface 10d for extracting light propagated in the light guide region 10a to the outside on the opposite side of the light guide region 10a; a first cover 11 for covering the surface of the light guide region 10a through an air layer 18; and a second cover 12 covering the first cover 11 and adhered to a side surface 10f of the lens region 10b so as to close the air layer 18.SELECTED DRAWING: Figure 4
Inventors:
FUKUI HIROTAKA
TANAKA YOSHIHARU
TANAKA YOSHIHARU
Application Number:
JP2018168771A
Publication Date:
March 19, 2020
Filing Date:
September 10, 2018
Export Citation:
Assignee:
TOYODA GOSEI KK
International Classes:
F21S2/00; F21S43/27; F21S43/14; F21S43/237; F21S45/50; F21V8/00
Domestic Patent References:
| JP2012014834A | 2012-01-19 | |||
| JP2011151440A | 2011-08-04 | |||
| JP2015141786A | 2015-08-03 | |||
| JP2016048625A | 2016-04-07 | |||
| JP2011154996A | 2011-08-11 | |||
| JP2011147105A | 2011-07-28 | |||
| JP2007073330A | 2007-03-22 |
Attorney, Agent or Firm:
Hirata International Patent Office