Image pick-up device, image display device and information recording medium comprising a fisheye lens
US6128145A · kind A · utility
16Cited by
3References
14Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Apr 28, 1999 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Apr 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/183
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image is picked up by a camera comprising a fisheye lens having a relationship of h=n.multidot.f.multidot.tan(.theta./m), wherein h is the height of an image of a subject at a certain point, f is the focal distance of the fisheye lens, .theta. is a field angle, m has a value of 1.6.ltoreq.m.ltoreq.3, and n has a value of m-0.4.ltoreq.n.ltoreq.m+0.4, and the image data of which is output from the camera, is converted into a plane image by an image data processing unit, and this converted image is then output to a monitor unit. Preferably, n and m both equal 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.