초록 ▼

An optical radar system includes an optical transmitter which responds to a drive signal to radiate a search light pulse into detection fields arranged in the direction in which the vehicle is moving. An optical receiver includes a plurality of arrayed photoelectric sensitive elements which receive

An optical radar system includes an optical transmitter which responds to a drive signal to radiate a search light pulse into detection fields arranged in the direction in which the vehicle is moving. An optical receiver includes a plurality of arrayed photoelectric sensitive elements which receive any search light pulses reflected by objects in the detection fields. A distance measuring device determines the respective distances from the system to the objects and the corresponding directions in which the objects lie in accordance with the delay between the drive signal and the reception of the corresponding reflected search light pulses by the individual photoelectric elements.

대표청구항 ▼

A system for measuring a distance to an object, comprising: a. first means responsive to a predetermined drive signal for transmitting a coherent pulsating light to a detection region of predetermined dimensions and orientation with respect to the system; b. second means including means for collecti

A system for measuring a distance to an object, comprising: a. first means responsive to a predetermined drive signal for transmitting a coherent pulsating light to a detection region of predetermined dimensions and orientation with respect to the system; b. second means including means for collecting a portion of the coherent pulsating light reflected by the object in the detection region and a plurality of arrayed photo-sensitive elements each monitoring a distinct light receiving area of said detection region and receiving the collected coherent light reflected from objects therein; and c. third means for generating and outputting the drive signal to said first means and determining the distance to the object in the detection region on the basis of the difference in time between an output timing of the drive signal and timing of reception of a received electric signal derived from each said light receiving area of said plurality of arrayed photo-sensitive elements, said third means comprising means for sequentially processing the received electric signals from each of said plurality of photo-sensitive elements within a sequence of predetermined time periods and means for measuring a time within each of said predetermined time periods for reception of reflected light by the photo-sensitive elements, thereby determining a time for transit of said light pulse to an object in said light receiving area monitored by the photo-sensitive elements.