US 12,743,175 B2Granted

Contactless button

AssigneeDarwin Precisions Corporation

Inventorschih-hung Liu, Ya Han Ko, Ran-Shiou You, Hsing-Yu Chen

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Abstract

A contactless button includes a substrate, a frame body, a first light-emitting unit, an optical imaging assembly, and an optical switch assembly. The frame body is mounted on the substrate. The first light-emitting unit is in the frame body. The optical imaging assembly is in the frame body and covers the first light-emitting unit. The optical imaging assembly converts a first light beam provided by the first light-emitting unit into a three-dimensional optical image projected from the opening. The optical switch assembly includes a second light-emitting unit and an optical trigger switch. The optical trigger switch generates a manipulation signal when sensing a second light beam generated by the second light-emitting unit. One of the second light-emitting unit and the optical trigger switch is mounted on the substrate and in the frame body. The other one thereof is mounted on the frame body and next to the opening.

Claims6

Dependent claims

A contactless button, comprising:

a substrate;
a frame body, mounted on the substrate, wherein a side of the frame body away from the substrate is provided with an opening;
a first light-emitting unit, accommodated in the frame body;
an optical imaging assembly, arranged in the frame body and covering the first light-emitting unit, wherein the optical imaging assembly is adapted to convert a first light beam provided by the first light-emitting unit into a three-dimensional optical image projected from the opening;
and
an optical switch assembly, comprising a second light-emitting unit and an optical trigger switch, wherein the optical trigger switch is adapted to generate a manipulation signal when sensing a second light beam generated by the second light-emitting unit, the second light-emitting unit is mounted on the substrate and located in the frame body and faces the opening, and the optical trigger switch is mounted on the frame body and positioned next to the opening and faces the opening;
wherein the optical imaging assembly further comprises a collimating unit, and the second light beam generated by the second light-emitting unit passes through the collimating unit.

4 more elements

Dependencies are inferred from the claim text.