Title:
面状照明装置
Document Type and Number:
Japanese Patent JP4085379
Kind Code:
B2
Abstract:
A spread illuminating apparatus includes at least one light source, a light conductive plate having the at least one light source disposed toward one end surface thereof, and at least one light controlling means disposed between the at least one light source and the light conductive plate. The at least one light controlling means is formed such that a plurality of transparent rectangular solids are stacked one over another vertically and horizontally, and that the transparent rectangular solids are put together by means of adhesive which can transmit light emitted from the at least one light source. The at least one light controlling means has a refractive index profile formed in both directions parallel to and vertical to the light exit surface of the light conductive plate thereby controlling light with respect to the both directions.
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| JP2003050556 | SELF-LUMINOUS DISPLAY DEVICE |
Inventors:
Atsushi Kitamura
Application Number:
JP2003091554A
Publication Date:
May 14, 2008
Filing Date:
March 28, 2003
Export Citation:
Assignee:
Minebea Co., Ltd.
International Classes:
F21V8/00; G02B6/00; G01D11/28; G01J1/04; G01J5/08; G02B3/00; G02F1/13357; H01J5/16; F21Y101/02
Domestic Patent References:
| JP8006023A | ||||
| JP2002260427A | ||||
| JP2005353556A |
Attorney, Agent or Firm:
Calyx
Miyazaki Yoshio
Toshio Nakamura
Kaoru Onozuka
Miyazaki Yoshio
Toshio Nakamura
Kaoru Onozuka