Optical apparatus and image pickup apparatus having a mechanism that extends distal end in optical axis direction
US11487188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2021 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | May 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/565
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical apparatus and an image pickup apparatus capable of reducing an impact force transmitted to an inside without increasing a total length is provided. A frame member which moves forward and backward in the optical axis direction integrally with an extension lens barrel has a recess facing a protrusion of a cam barrel in a radial direction. An elastic member urges the extension lens barrel and the frame member to be away from each other in the optical axis direction. A restriction member holds the frame member with a first gap formed between the extension lens barrel and the frame member in the optical axis direction. A second gap formed between the protrusion and the recess in the optical axis direction is smaller than the first gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.