Data recording device and camera with data imaging device
US6507710B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Dec 28, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/245
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an optical data recording device, an LCD panel, an aperture stop and a projection lens are arranged in this order from the object side, and a center of the LCD panel is displaced from an optical axis of the projection lens in a direction away from an optical axis of an taking lens, so an image of data displayed on the LCD panel is projected on a photo filmstrip at a position that is shifted from the projection lens optical axis toward the taking lens optical axis. Where the photo filmstrip is curved along its lengthwise direction for compensating for a curvature of field of the taking lens, the LCD panel is inclined to a perpendicular plane to the projection lens optical axis, so an image surface of the LCD panel is formed on the photo filmstrip parallel with its curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.