公开(公告)号：US09680074B2

公开(公告)日：2017-06-13

申请号：US15058645

申请日：2016-03-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ji Hoon Yun ,  Jong Sup Song ,  Soo Hwan Lee ,  Saesil Kim ,  Mi Jeong Yun

IPC: H01L33/00 ,  H01L33/58 ,  F21V3/02 ,  H01L33/24 ,  H01L33/38 ,  H01L33/50

CPC classification number: H01L33/58 ,  F21V3/02 ,  H01L33/24 ,  H01L33/382 ,  H01L33/505 ,  H01L2224/73204 ,  H01L2224/97 ,  H01L2933/0058

Abstract: An optical device may include a first surface having a shape of a quadrangle; and a second surface disposed to be opposite to the first surface and comprising a convex curved surface. The optical device has an aspherical shape in a cross-section taken along a diagonal direction of the quadrangle and has a semicircular shape in a cross-section taken along a direction connecting a central portion of a first side of the quadrangle and a central portion of a second side opposite to the first side of the quadrangle. In a cross-sectional view of the optical device, the second surface is continuously varied between the semicircular shape of the cross-section and the aspherical shape of the cross-section.