TOF CAMERA FOR VEHICLE AND METHOD FOR DRIVING THE SAME

摘要

A TOF camera for a vehicle includes a light emitting unit that irradiates light to an object, a light receiving unit that detects a distance to the object based on light reflected and returned from the object and generates a modulation signal for frequency modulation of the light, and a control unit that controls driving of the light emitting unit according to the modulation signal of the light receiving unit. The light emitting unit includes a plurality of laser diodes. The control unit decides a driving order of the laser diodes according to the modulation signal of the light receiving unit so as to control driving of the laser diodes, and decides current values of the laser diodes according to the modulation signal of the light receiving unit so as to control current amounts of laser diodes to be driven.

主权项

1. A TOF camera for a vehicle comprising:
a light emitting unit that irradiates light to an object; a light receiving unit that detects a distance to the object based on light reflected and returned from the object, and generates a modulation signal for frequency modulation of the light; and a control unit that controls driving of the light emitting unit according to the modulation signal of the light receiving unit, wherein the light emitting unit comprises: a plurality of laser diodes, wherein the control unit decides a driving order of the laser diodes according to the modulation signal of the light receiving unit so as to control driving of the laser diodes, and decides current values of the laser diodes according to the modulation signal of the light receiving unit so as to control current amounts of laser diodes to be driven.