Camera capable of automatically compensating focal length
US11143839B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2018 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Aug 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera capable of automatically compensating focal length includes a base, an adjust seat, and a lens barrel. The adjust seat includes a first ring, a second ring, and a connecting member. The first ring and the second ring are coaxially sleeved with each other and a distance is kept between the first ring and the second ring. The first ring includes a first end and a second end that are axially opposite to each other. The first end is fixed on the base. The second ring includes a third end and a fourth end that are axially opposite to each other. The third end is connected to the second end of the first ring via the connecting member. The fourth end has a first coupling part. The lens barrel has a second coupling part correspondingly coupled to the first coupling part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.