Position sensitive photoelectric sensor and method of setting reference distance in the same
US7312854B2 · kind B2 · utility
9Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2006 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Jun 25, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/48
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a position sensitive photoelectric sensor that calculates a distance to a target based on a triangular range finding using a light and outputs a result compared with a reference distance, first the reference distance Dref is set roughly by using a light receiving portion adjusting mechanism that changes an angle of a light receiving portion including a reception lens and a light receiving device. Then, the change adjustment of the reference distance is performed by teaching. In addition, the user performs a fine adjustment of the reference distance by a manual adjustment using an increase/decrease key if necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.