US 12,001,032 B2
Grating structure and UV light
Qing Lan, Shenzhen (CN); Shoubao Chen, Shenzhen (CN); Bo Lei, Shenzhen (CN); Jinliang Lei, Shenzhen (CN); and Linjiang Wang, Shenzhen (CN)
Assigned to Shenzhen Guanke Technologies Co., Ltd, Shenzhen (CN)
Filed by Shenzhen Guanke Technologies Co., Ltd, Shenzhen (CN)
Filed on Jan. 7, 2022, as Appl. No. 17/570,992.
Claims priority of application No. 202122705674.X (CN), filed on Nov. 5, 2021.
Prior Publication US 2023/0142466 A1, May 11, 2023
Int. Cl. G02B 5/00 (2006.01); A61L 9/20 (2006.01); G02B 5/20 (2006.01)
CPC G02B 5/003 (2013.01) [A61L 9/20 (2013.01); G02B 5/208 (2013.01); A61L 2209/12 (2013.01); A61L 2209/15 (2013.01)] 18 Claims
OG exemplary drawing
 
16. An ultraviolet (UV) light comprising:
a grating structure comprising baffles provided at intervals, wherein an upper surface and a lower surface of each baffle further comprise a light absorption layer, adjacent baffles enclose each other to form a light outlet in a light emission direction of the light outlet, each baffle further comprises a first plate body, a second plate body and a third plate body connected in sequence, the second plate body is configured as a light filter, has a convex upper surface and a convex lower surface, and a height difference between the convex upper surface and the convex lower surface is greater than 1.5 mm.