Lens frame holding device
US4585308A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1984 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Aug 20, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/026
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens frame holding device for mounting the optical unit of a copying machine in which the position of the lens frame in the direction of the optical axis is regulated so that, if a lens frame is removed from the housing for maintenance or the like, it can be easily and accurately reassembled without the need for adjustment. A housing has bottom and vertical walls at opposite ends of the bottom wall, and supporting cuts are formed in the vertical walls for supporting the lens frame. Two hooking slots are formed in each vertical wall, and elastic lens holding members are provided for securing the lens frame to the housing. The lens holding members each having two hooking portions adapted to engage with the hooking slots. With the lens holding members laid over the lens frame set in the supporting cuts, the lens frame is fixedly secured to the housing using the hooking portions and hooking slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.