Image capturing apparatus and optical adjustment method
US7920327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2010 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Jan 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B19/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image capturing apparatus includes: at least one or more vertically movable lens groups among at least three or more lens groups, which constitute a zoom lens, movable in an optical axis direction, the vertically movable lens group being movable in a direction substantially perpendicular to the optical axis; a zoom lens group among the three or more lens groups, the zoom lens group being movable in the optical axis direction; and a correction mechanism that corrects a position of the optical axis based on the three or more lens groups by moving the vertically movable lens group in a wide-angle end state to a predetermined position in the substantially perpendicular direction. When the vertically movable lens group is moved for the purpose of anti-vibration at each zoom position in the substantially perpendicular direction, the apparatus is configured to satisfy the following Conditional Expression (1).0.7<(Lw+Bw)/Bt<1.3 (1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.