The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2013
Filed:
Feb. 02, 2011
Hui-hsiung Lin, Miaoli County, TW;
Wen-hsun Yang, Taipei, TW;
Chin-ju Hsu, Tainan, TW;
Yu-nan Pao, Hsinchu County, TW;
Hui-Hsiung Lin, Miaoli County, TW;
Wen-Hsun Yang, Taipei, TW;
Chin-Ju Hsu, Tainan, TW;
Yu-Nan Pao, Hsinchu County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A directional light distributing optical element includes a light incident surface and a light emission curved surface. The light incident surface receives a light emitted by a light source. The light emission curved surface and a first plane are intersected to form a first curve. The first curve has a plurality of first curve segments, and each first curve segment includes at least three first tangent points. After passing each first tangent point along a connecting line of the light source and each first tangent point, the light exits along a first axis, and an included angle formed between the first axis and an optic axis is greater than −15° and smaller than 15°. Thus, the light after passing the directional light distributing optical element forms a one-dimensional directional light.