Image reading apparatus
US6115147A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1008
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image reading apparatus has line sensors for optically reading an image carried on an image placed on a subject table and producing an image signal. The line sensors are displaceable by a piezoelectric device which is mounted on a support base by an attachment unit. The attachment unit has an attachment member including a bottom wall having two threaded holes defined therein that are spaced from each other by a given distance Ld. The attachment unit also has an adjustment member which has a screw insertion hole defined therein and extending from rear to front surfaces thereof for insertion therethrough of a screw for horizontally holding the piezoelectric device, and two positioning oblong holes defined vertically therein for passage therein of bolts threaded respectively in the threaded holes in the bottom wall of the attachment member. The attachment unit allows the piezoelectric device to have its projection length adjustable with ease, and also to be replaced independently with a new one, for thereby dispensing with repeated optical positional adjustments, increasing the quality of reproduced images, and reducing the cost of the image reading apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.