Title:
照明ユニット
Document Type and Number:
Japanese Patent JP2005522837
Kind Code:
A
Abstract:
The invention relates to a lighting unit ( 1 ) having a concave reflector ( 2 ) with an axis of symmetry ( 3 ) and a light emission window 21 ) bounded by a circumferential edge ( 20 ) transverse to the axis, an elongate light source ( 30 ) extending substantially along the axis of symmetry ( 3 ), which light source ( 30 ) is accommodated in a holder ( 4 ) opposite the light emission window ( 21 ), and an axially positioned cap ( 5 ), which cap partly surrounds the light source ( 30 ) and forms an optical screening means to intercept unreflected light rays. According to the invention, the cap ( 5 ) forms part of a sleeve ( 60 ) surrounding the light source ( 30 ).
Inventors:
Peters Ralph H
Application Number:
JP2003584572A
Publication Date:
July 28, 2005
Filing Date:
April 11, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F21S2/00; F21V11/16; F21V13/00; F21V13/10; F21V13/12; F21V17/04; H01J61/34; F21V25/02; F21V25/12; F21Y101/00; (IPC1-7): F21S2/00; F21V13/00; F21V13/12
Attorney, Agent or Firm:
Susumu Tsugaru
Akihiko Miyazaki
Fueda Shusen
Akihiko Miyazaki
Fueda Shusen