Imaging apparatus having illumination means
US4803550A · kind A · utility
45Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1988 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Apr 13, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging apparatus for use in an electronic endoscope or the like is provided with a mechanically driven light-shielding plate, wherein imaging is effected by using a solid-state imaging device starting from a time when an amount of light shielded by this light-shielding plate becomes minimal, or imaging is effected repeatedly during a short exposure time within a transient period during which the amount of light shielded becomes minimal, and when an signal level of each image reaches a reference level, that signal is stored in a memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.