Patent ID: 9626041
Date: 2017-04-18
CPC Classifications: G01D,G06F,H01L

Claim:
1. An optical touch panel comprising: first packages and second packages provided on a display surface at opposite sides to each other; and first and second light guide lenses each opposing light emitting and receiving faces of said first and second packages, respectively, each of said first and second packages comprising one light emitting element and one light receiving element vertically arranged above said display surface, the light emitting element of each of said first packages opposing the light receiving element of one of said second packages, the light emitting element of each of said second packages opposing the light receiving element of one of said first packages, wherein each of said first and second light guide lenses includes at least one light emitting and receiving face which is two-convex shaped viewed from a side thereof to form a condenser lens while another portion of said each of said first and second light guide lenses except for said condenser lens serves as a light guide, and wherein each of said first and second packages comprises: