LED lamp and optical lens
A LED lamp and an optical lens thereof are provided. The LED lamp includes a LED light source and an optical lens covering the LED light source. The optical lens includes a dome structure and a protrusion structure. The dome structure has an external surface. The protrusion structure is disposed protruding from the external surface and includes oppositely-disposed first and second side surfaces. The first side surface includes first and second optical surfaces. The second side surface includes a third optical surface. The second optical surface is connected immediately to the external surface and further connected between the external surface and the first optical surface. A boundary line of the second and the first optical surfaces is not disposed at the external surface. The third optical surface and the external surface are immediately connected.
Local uniformity of light distribution of the optical lens is improved.
Lighting
2016-06-15
US15/182628
F21Y115/10 | F21V5/04 | F21V5/00 | F21Y101/00 | F21V5/08
光学设计
