Title:
ILLUMINATING LAMP SHADE
Document Type and Number:
Japanese Patent JPH08235917
Kind Code:
A
Abstract:
PURPOSE: To differentiate colors between diffracted light and transmitted light to satisfy a complemental relationship by pasting reflecting holograms to a transmitted light plate to forum a shade.
CONSTITUTION: When a light source is lit, white light L is scattered in all direction and projected as direct light to downward illumination points. The light L illuminated to holograms 11-13 is diffracted and reflected downward as green light L1 in the hologram 11, as red light L2 in the hologram 12 and as blue light L3 in the hologram 13, respectively, and, if not diffracted, transmitted outside a cover 3 as scattered light L'1, L'2, L'3 so that it can be visibly recognized in different colors from those of the downward diffracted light.
Inventors:
ASAKURA MOTOO
NISHIKAWA SHINJI
NISHIKAWA SHINJI
Application Number:
JP4015395A
Publication Date:
September 13, 1996
Filing Date:
February 28, 1995
Export Citation:
Assignee:
CENTRAL GLASS CO LTD
International Classes:
G02B5/32; F21V1/00; F21V1/14; (IPC1-7): F21V1/14; F21V1/00; G02B5/32
Attorney, Agent or Firm:
Eiichi Sakamoto
Previous Patent: SMALL TABLE LAMP FOR SENSING POWER FAILURE AND EARTHQUAKE AND TO BE AUTOMATICALLY TURNED ON
Next Patent: LIGHT SOURCE DEVICE
Next Patent: LIGHT SOURCE DEVICE