Title:
液晶レンズ付き発光装置
Document Type and Number:
Japanese Patent JP4471729
Kind Code:
B2
Abstract:
A light-emitting apparatus, comprising at least one LED element, and at least one liquid crystal lens disposed to face the LED element and positioned at a distance from the LED element, a focal length of light, broadening and narrowing directions of light, and changing the illuminating area of light being adjustable by applying a voltage to the at least one liquid crystal lens and a light-emitting apparatus, further comprising at least one lens placed on the liquid crystal lens.
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Inventors:
Masatoshi Ryuishi
Application Number:
JP2004136755A
Publication Date:
June 02, 2010
Filing Date:
April 30, 2004
Export Citation:
Assignee:
Citizen Electronics Co., Ltd.
International Classes:
G02F1/13; H01L33/48; F21V5/04; F21V17/00; F21V17/02; G02F1/1335; G02F1/29; H01L33/58; H01L33/60; H01L33/62; F21S8/10; F21V14/00; F21Y101/02; G02F1/1343
Domestic Patent References:
| JP61103132A | ||||
| JP11163412A | ||||
| JP2003110146A |
Attorney, Agent or Firm:
Gojong Hiroaki