Lens barrel and electric circuit board connection structure
US5559571A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1995 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Jan 20, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/002
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A shake-prevention mechanism is positioned on a support unit that supports the shake-prevention optical system. A single flexible printed circuit board having connection ends that connect to the various electrical connections is used as the wiring device to interconnect to the various electrical connections in the mechanism in addition to connecting the mechanism to external devices. The connection ends of the flexible printed circuit board are mounted to pinch and/or surround the support unit containing the drive mechanism from the front and back in the direction of the optical axis. Additionally, a base plate and a cover unit are positioned to have a spacing in between, together forming a support unit for supporting a shake-prevention optical system that is part of the shooting lens system. One photo-interrupter is fixed to the base plate that supports the motor, while another photo-interrupter is fixed to the cover unit that presses the motor and is a unit separate from the base plate. A shutter unit is integrated with a lens group with a smaller diameter than the anti-vibration lens group. The shutter wiring board and the anti-vibration wiring board are connected electrically i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.