Lens mounting mechanism and projector apparatus
US6778340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2003 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Aug 11, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/142
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a lens mounting mechanism, by rotating a ring member through touching lugs of the ring member and aligning grooves of a base member and recesses of the ring member in the circumferential direction, and then inserting a lens barrel into a hole portion, the lens barrel is moved to the hole portion without being interfered by projections of a barrel mounting member, so that the lens barrel can be inserted into the hole portion until a flange portion abuts against an opening end surface. Then, by touching the lugs of the ring member and rotating the ring member to displace the recesses from the grooves of the base member in the circumference direction, the projection of the barrel mounting member is locked by the ring member and the barrel mounting member is fixed to the base member, so that the lens barrel can be mounted to the apparatus body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.