Japan, March 5 -- CANON INC has got intellectual property rights for 'LIGHT SOURCE DEVICE AND RANGING DEVICE.' Other related details are as follows:
Application Number: JP,2021-134111
Category (FI): G01S7/481@A,H01S5/183,H01S5/026,612
Stage: PROBLEM TO BE SOLVED: To provide a light source device capable of improving detection accuracy of an oscillation timing of a laser beam without reducing the light intensity of the laser beam.SOLUTION: The light source device has a light-emitting element, a light-receiving element, and a determining unit. The light-emitting element has a first reflecting mirror, a second reflecting mirror, and a resonator spacer part provided between the first reflecting mirror and the second reflecting mirror and including an active layer. The light-emitting element emits first light, which is laser light, and second light, which is spontaneous emission light. The light-receiving element detects a light quantity of the second light. The determining unit detects a timing when the first light has oscillated on the basis of the reduction in the light quantity of the second light detected by the light-receiving element.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: Aug. 19, 2021
Publication Date: March 3, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
