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. 01, 2018
Filed:
Mar. 30, 2015
Hisense Electric Co., Ltd., Qingdao, Shandong, CN;
Hisense Usa Corporation, Suwanee, GA (US);
Hisense International Co., Ltd., Qingdao, Shandong, CN;
Hisense Electric Co., Ltd., Qingdao, Shandong, CN;
Hisense USA Corporation, Suwanee, GA (US);
Hisense International Co., Ltd., Qingdao, Shandong, CN;
Abstract
Embodiments of the present disclosure provide a light emitting device and display equipment. The light emitting device, includes a light emitting diode (LED) and an optical lens, the optical lens including a light incident surface and a light emergent surface, the light incident surface including a free-form convex surface; wherein there is a first angle between a symmetry axis and the connecting line between the center point of the light emitting surface and any point on the light incident surface, and the curvature of the light incident surface decreases with the increase of the first angle; there is a second angle between a symmetry axis and the connecting line between the center point of the light emitting surface and any point on the light emergent surface, and the curvature of the light emergent surface increases with the increase of the second angle.