Focus adjustment mechanism and photo device having the same
US7945153B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2009 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Aug 25, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B13/34
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A focus adjustment mechanism is used for a photo device for adjusting a focus of a lens assembly of the photo device. The focus adjustment mechanism comprises a focus adjustment button connected to a casing of the photo device and comprising a contact portion, and a pressure detection module disposed in the photo device in a position corresponding to the focus adjustment button to contact the contact portion, and the pressure detection module is electrically coupled with the lens assembly. When the focus adjustment button is pressed, the pressure detection module can generate a signal value according to a displacement value of the focus adjustment button so that a focus of the lens assembly is determined according to each signal value. Furthermore, the present invention discloses a photo device having the focus adjustment mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.