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:
May. 28, 2019
Filed:
Jun. 26, 2017
Suprema Inc., Gyeonggi-do, KR;
Hochul Shin, Gyeonggi-do, KR;
Kideok Lee, Gyeonggi-do, KR;
Dae Jin Kwon, Gyeonggi-do, KR;
Hyun Suk Lee, Gyeonggi-do, KR;
Bong Seop Song, Gyeonggi-do, KR;
Jae Won Lee, Gyeonggi-do, KR;
SUPREMA INC., Gyeonggi-Do, KR;
Abstract
An apparatus is for irradiating light for obtaining a face image of an authentication target. The apparatus includes a first light source unit having a first glancing angle, a second light source unit having a second glancing angle greater than the first glancing angle, and an external light information acquisition unit configured to acquire environment information on an external light other than the first light source unit and the second light source unit for the authentication target. The apparatus further includes a control unit configured to determine a power ratio of a second driving power supplied to the second light source unit to a first driving power supplied to the first light source unit based on the environment information and control currents to be supplied to the first light source unit and the second light source unit based on the power ratio.