Title:
LINEAR ILLUMINATOR
Document Type and Number:
Japanese Patent JP2014127332
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a linear illuminator which uses a long-size a light guide body capable of expressing the spacial spreading along the longitudinal direction by improving an illumination difference due to the boundaries at both end parts of a linear illumination pattern.SOLUTION: A linear illuminator includes a long-size light guide body, a case for housing the light guide body and a light source disposed at the end part in the longitudinal direction of the light guide body. Therein, a light-shielding wall having a curved shape concaved toward the light source side, with which an emission surface of the light guide body is covered, is provided at the end part of the light source side in the opening of the case, and a light-shielding wall with which an emission surface is covered and a light shape processed wall having a curved shape to be concaved toward such a direction that the wall surface is separated from the light source are provided at the other end part of the part opposite to the light source in the opening of the case.
Inventors:
UMEDA YUKIHIKO
MIZUSIRO TETSU
MIZUSIRO TETSU
Application Number:
JP2012282848A
Publication Date:
July 07, 2014
Filing Date:
December 26, 2012
Export Citation:
Assignee:
TOYODA GOSEI KK
International Classes:
F21S2/00; B60Q3/02; F21V8/00; F21Y101/02
Domestic Patent References:
| JP2009269492A | 2009-11-19 |
Foreign References:
| US20060152936A1 | 2006-07-13 |
Previous Patent: JP2014127331
Next Patent: POSITIVE ELECTRODE COLLECTOR FOIL OF LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTER...
Next Patent: POSITIVE ELECTRODE COLLECTOR FOIL OF LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTER...