Title:
Luminescent device
Document Type and Number:
Japanese Patent JP6191453
Kind Code:
B2
Abstract:
A light emitting device comprising: a base; a light emitting element arranged on a surface of the base; a first resin layer arranged to surround a side portion of the light emitting element and to be spaced apart from the side portion; and a second resin layer arranged on the surface of the base, the second resin layer being present at least on a top of the light emitting element, on a top of the first resin layer, and in an area between the light emitting element and the first resin layer, wherein the first resin layer comprises a light transmissive resin and a first fluorescent material, wherein the second resin layer comprises a light transmissive resin and a second fluorescent material, and wherein the second fluorescent material exhibits higher heat resistance than that of the first fluorescent material.
Inventors:
Yuji Akazawa
Application Number:
JP2013272688A
Publication Date:
September 06, 2017
Filing Date:
December 27, 2013
Export Citation:
Assignee:
Nichia Corporation
International Classes:
H01L33/50; C09K11/00; C09K11/02; C09K11/08; C09K11/61; C09K11/64; C09K11/80
Domestic Patent References:
| JP2004055632A | ||||
| JP2013201274A | ||||
| JP2013232448A | ||||
| JP2004128393A | ||||
| JP2008166782A | ||||
| JP2012038754A | ||||
| JP2012023284A |
Foreign References:
| US20130193465 | ||||
| WO2013015058A1 | ||||
| EP2642519A1 | ||||
| US20040066140 | ||||
| US20120032219 |
Attorney, Agent or Firm:
Samejima Mutsumi
Keiichi
Yoshida Tamaki
Norihito Yamao
Keiichi
Yoshida Tamaki
Norihito Yamao
Previous Patent: A retrieval program, a search method, and an information processor
Next Patent: TOOL HOUSING STRUCTURE FOR MOTOR SCOOTER TYPE VEHICLE
Next Patent: TOOL HOUSING STRUCTURE FOR MOTOR SCOOTER TYPE VEHICLE