Title:
PLANAR LIGHTING APPARATUS
Document Type and Number:
Japanese Patent JP2723481
Kind Code:
B2
Abstract:
PURPOSE: To provide a background light source with high brightness and without unevenness of the brightness in order to heighten the visual property of a liquid crystal display apparatus and a transparent photograph.
CONSTITUTION: A lighting apparatus is a box-like one of which the whole inner face except a light source is opaque and white and has a large open face 7 in one face and rod-like light sources 3 are installed in the side faces of the box-like body. The parts in three directions of the light sources 3 are so covered with white-color diffusion covers as not to be seen from the upper part of the open face and a smoothly and moderately curved face is formed in the bottom face 6 of the box-like body, so that the light-rays from the light source are emitted out of the open face as uniformly diffused light-rays.
Inventors:
UCHIO SHUNJI
Application Number:
JP8272895A
Publication Date:
March 09, 1998
Filing Date:
April 07, 1995
Export Citation:
Assignee:
HIKARI ENERUGI OYO KENKYUSHO KK
International Classes:
F21S2/00; F21V7/00; (IPC1-7): F21S1/00; F21V7/12
Domestic Patent References:
| JP5188207A | ||||
| JP5142537A | ||||
| JP61158367A | ||||
| JP521289U | ||||
| JP533193U | ||||
| JP5470278U |
Attorney, Agent or Firm:
Akira Asamura (3 outside)