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:
Dec. 25, 2018
Filed:
Aug. 14, 2015
Gwangju Institute of Science and Technology, Buk-gu, Gwangju, KR;
GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, Gwangju, KR;
Abstract
A lighting system and a selective retro-reflection apparatus are provided. The lighting system includes a lamp, a reflector configured to reflect light emitted by the lamp, a projection lens configured to emit the reflected light of the reflector in a predetermined direction, and a selective shield apparatus disposed between the projection lens and the reflector and provided on a path of light directed upward among the light reflected from the reflector to selectively shield the light directed upward, wherein the selective shield apparatus includes a panel and a selective shield portion supported by the panel, positions of the panel and the selective shield portion are fixed, and a state in which the selective shield portion transmits the light is changed according to whether power is supplied.