Patent ID: 9557194
Date: 2017-01-31
CPC Classifications: F24C,G01D,G05G,H03K

Claim:
1. An input device for an electrical device, said input device comprising: a base configured for attachment to the electrical device, said base including at least one light source for producing a measurement beam and at least one sensor for detecting the measurement beam, wherein the base includes a viewing surface, which faces in a direction of an exterior of the electrical device when the input device is attached, and a clearance in offset relationship to the viewing surface in a direction of an interior of the electrical device for the input actuator; and an input actuator at least partially disposed in the clearance of the base and movable in relation to the base and including a plurality of reflection bodies for deflecting the measurement beam onto the sensor, each said reflection body having an entry area for entry of the measurement beam into the reflection body, at least one reflection surface for reflecting the measurement beam, and an outlet area for outlet of the measurement beam from the reflection body.