Lens assembly installation of scanner
US5583686A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens assembly installation of scanner comprises a sliding base being movable inside the scanner horizontally and longitudinally on which is disposed a projection lamp, a light filtering lens assembly and a camera. Characterized in that the light filtering lens assembly includes a stepping motor, a support plate, a lens bracket and four pieces of lens, wherein the lens bracket shaped as a circular arc wherein four windows are disposed one-by-one parallelly has a plurality of screw holes disposed at the top. An opening at the top rim of the window and a U-channel, to accommodate the lens, in the inner rim of the window are provided. The support plate is provided with a shaft hole by which it can be fixed onto the stepping motor shaft and several small holes and projected hold-down plate are provided at its outer rim corresponding respectively to the screw holes on the lens bracket and window which can be locked with the lens bracket to form an integrated unit. This invention simplifies the assembly and the transmission of the light filtering lens assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.