Invention Application
- Patent Title: LIGHT-EMITTING APPARATUS INCLUDING PHOTOLUMINESCENT LAYER
- Patent Title (中): 发光装置,包括光致发光层
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Application No.: US15060574Application Date: 2016-03-03
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Publication No.: US20160265747A1Publication Date: 2016-09-15
- Inventor: NOBUAKI NAGAO , TAKU HIRASAWA , YASUHISA INADA , MITSURU NITTA , AKIRA HASHIYA , YASUHIKO ADACHI
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Priority: JP2015-050681 20150313; JP2015-169024 20150828
- Main IPC: F21V9/08
- IPC: F21V9/08 ; H04N5/225 ; F21V8/00

Abstract:
A light-emitting apparatus includes; a light-emitting device including a photoluminescent layer that receives excitation light and emits light including first light having a wavelength λa in air, and a light-transmissive layer located on or near the photoluminescent layer; and an optical fiber that receives the light from the photoluminescent layer at one end of the optical fiber and emits the received light from the other end thereof. A surface structure is defined on at least one of the photoluminescent layer and the light-transmissive layer, and the surface structure has projections or recesses or both and limits a directional angle of the first light having the wavelength λa in air.
Public/Granted literature
- US10182702B2 Light-emitting apparatus including photoluminescent layer Public/Granted day:2019-01-22
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