Patent ID: 11872014
Assignee: PIXART IMAGING INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An optical detection device for physiological characteristic identification, comprising:
a first light source adapted to emit a first optical signal towards a target object;
a second light source adapted to emit a second optical signal towards the target object;
a third light source adapted to emit a third optical signal towards the target object, the second light source being symmetrically disposed between the first light source and the third light source; and
an optical receiver adapted to receive and simultaneously analyze the first optical signal, the second optical signal and the third optical signal simultaneously reflected from the target object for acquiring the physiological characteristic identification of the target object;
wherein the first light source, the second light source and the third light source are light emitting diodes and emit the optical signals having wavelengths different from each other.