Title:
集光器モジュール
Document Type and Number:
Japanese Patent JP6818168
Kind Code:
B2
Abstract:
The invention provides a lighting device (1) comprising a light source configured to provide light source light and a luminescent element (5) comprising an elongated light transmissive body (100), the elongated light transmissive body (100) comprising a side face (140), wherein the elongated light transmissive body (100) comprises a luminescent material (120) configured to convert at least part of the light source light (11) selected from one or more of the UV, visible light, and IR received by the elongated light transmissive body (100) into luminescent material radiation (8). The side face comprises the radiation input face (111), and the body further comprises a first face (141) and a second face (142) defining a length of the body, wherein the second face comprises a first radiation exit window (112). The side face comprises a curvature with a radius r, and the concentration of the luminescent material is chosen such that at least 80% of the source light is absorbed within a first length x from the side face, wherein x/r<=0.4 applies.
Inventors:
Whalen Christoph Gerald August
Kadeik Simon Emme
Haenen Ludofix Johannes Lambertus
LI Yun
Kadeik Simon Emme
Haenen Ludofix Johannes Lambertus
LI Yun
Application Number:
JP2019572390A
Publication Date:
January 20, 2021
Filing Date:
July 05, 2018
Export Citation:
Assignee:
SIGNIFY HOLDING B.V.
International Classes:
F21V8/00; F21S2/00; F21V9/30; G02B5/20; G02B6/00
Domestic Patent References:
| JP2009535081A | ||||
| JP2008536266A | ||||
| JP2002042525A |
Foreign References:
| WO2017055041A1 | ||||
| WO2017097762A1 | ||||
| WO2015185469A1 |
Attorney, Agent or Firm:
Sakiko Shibata