Patent ID: 9341333
Filing Date: 2016-05-17
CPC Classification: E06B,F21S,G02B

Claim Text:
1. A window glass comprising: a top surface; a bottom surface opposite to the top surface; an incident surface interconnected between the top surface and the bottom surface; and an emergent surface interconnected between the top surface and the bottom surface and opposite to the incident surface, the emergent surface defining a plurality of sawteeth, each sawtooth comprising a first surface and a second surface intersected with the first surface, an angle between the first surface of each sawtooth and the incident surface exceeding 90 degrees, the second surface and the incident surface defining an acute angle, the acute angle increasing gradually from the top surface to the bottom surface, and an area of the first surface of each sawteeth increasing gradually from the top surface to the bottom surface, wherein in each sawtooth, a distance between the first surface and the top surface is less than a distance between the second surface and the top surface.