Optical unit with shake correcting function
US9041816B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2012 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | May 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0069
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The purpose of the present invention is to provide an optical unit with a shake correction function such that even when a photo reflector is provided by using a gap between a side surface of a movable body and a side surface of a fixed body, an appropriate relationship between an output from the photo reflector and the rock angle of the movable body can be obtained. In an optical unit (100) with a shake correction function, a movable body (3) is rocked about a rock fulcrum (180) by a driving mechanism (500) for shake correction, and thereby shaking is corrected. At that point, the movement of the movable body (3) is monitored by providing a first photo reflector (580a) and a second photo reflector (580b) on side surfaces of a fixed body (200). Here, a smooth layer (590) such as a resin tape, a metal sheet, a coating layer, plate glass or a reflective board is laminated onto side surfaces of the movable body (3) at a region facing the first photo reflector (580a) and a region facing the second photo reflector (580b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.