Lens adjustment device
US11169356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Jul 22, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens adjustment device includes a base assembly, a lens assembly, a light blocking member and an elastic member. The lens assembly is disposed on the base assembly and is rotatable relative to the base assembly along an axis. The light blocking member is disposed between the base assembly and the lens assembly. The light blocking member is rotatable relative to the lens assembly and the base assembly. The light blocking member is movable along the axis between a first predetermined position and a second predetermined position. The elastic member abuts against the light blocking member to provide an elastic force for moving the light blocking member from the second predetermined position toward the first predetermined position such that the light blocking member abuts against the base assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.