Lens unit
US8373938B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Feb 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/028
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Among three lenses housed in a lens barrel, a first lens and a second lens are adjacent to each other. A position regulating section is a part where a first protrusion of the first lens is formed. A shielding member is provided at a position interposed between the first lens and the second lens and limits a passing luminous flux. An engagement section is a part of the shielding member, and in this part, there is formed an opening into which the first protrusion of the first lens enters. The engagement section engages with the position regulating section, and thereby the position of the shielding member in a direction crossing an optical axis is regulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.