Obstacle detecting system having a plurality of spaced laser diodes
US5321255A · kind A · utility
9Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1992 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Sep 28, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4814
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An obstacle detecting system comprises an optical unit having a plurality of spaced laser diodes each of which emits a laser beam, a convex lens spaced from the optical unit in the frontward direction thereof and establishing a combined beam after each the laser beam passes through the convex lens, and a driving device for adjusting the relationship between each the laser beam and the convex lens. Such structure enabling the detection of the obstacle such as a vehicle in such manner that the obstacle is fallen within the width of the combined beam by adjusting the relationship between each the laser beam and the convex lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.