Focusing device including capacitive transducer position sensor
US6068189A · kind A · utility
2Cited by
8References
87Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1997 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Jan 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/36
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A focusing device (1) for a light receiving device (3) having at least one lens device (5) and a light sensor (7) exposed to the incident light is proposed, which is distinguished by the fact that the lens device (5) is designed to be stationary and that an actuation device (9), which displaces the light sensor (7) parallel to itself, and a position sensor (27), which detects the current position of the light sensor (7), are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.