Apparatus for recording an image by irradating a plurality of light beams on a recording surface
US5539444A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1993 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Dec 9, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An aperture plate is disposed between a reduction optical system (imaging optical system) and a light source unit in which a plurality of light source parts each emitting a light beam are arranged in a predetermined arrangement pattern. In the aperture plate, a plurality of apertures are arranged in the same pattern as the arrangement pattern of the light source parts. Light beams from the light source parts are directed toward the reduction optical system through the apertures which face the respective light source parts so that reduction images of the apertures are formed on a photosensitive material. Even if the light source parts are located a little displaced from a predetermined arrangement pattern, images of the apertures will be focused on a photosensitive material. This enables easy adjustment of the locations of the light source parts and recording of a high quality image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.