US 12,105,312 B1
Light emitting module for luminous keyboard
Chih-Hsien Wu, Taichung (TW); Shih-Pin Lin, Taichung (TW); Li-Ling Huang, Taichung (TW); and Zhi-Xuan Zhang, Taichung (TW)
Assigned to Sunrex Technology Corp., Taichung (TW)
Filed by SUNREX TECHNOLOGY CORP., Taichung (TW)
Filed on Mar. 26, 2024, as Appl. No. 18/617,231.
Claims priority of application No. 113103562 (TW), filed on Jan. 30, 2024.
Int. Cl. F21V 8/00 (2006.01); H01L 33/60 (2010.01); H01L 25/075 (2006.01)
CPC G02B 6/0036 (2013.01) [G02B 6/006 (2013.01); H01L 33/60 (2013.01); H01L 25/0753 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A light emitting module adapted to be mounted in a luminous keyboard, said light emitting module comprising:
a light-shielding plate including a light-shielding portion and a hollow unit that is formed in said light-shielding portion, said hollow unit extending through said light-shielding portion in a top-bottom direction;
a light-guiding plate made of a light permeable material and disposed under said light-shielding plate, said light-guiding plate having
a light-exiting surface that is disposed adjacent to said light-shielding plate, and that has a base portion and at least one light-mixing portion, said at least one light-mixing portion being formed on said base portion, being disposed within said hollow unit, and having a plurality of refracting segments, each of said refracting segments extending and tapering upwardly from said base portion in the top-bottom direction,
a bottom surface that is opposite to said light-exiting surface, and
a light-entering surface unit that is connected between said light-exiting surface and said bottom surface;
a reflection plate disposed under said bottom surface; and
a light source unit including a plurality of light emitting members that are disposed below said light-shielding portion, said light-entering surface unit facing said light emitting members.