Camera capable of trimming photographing and having zoom finder with converter lenses
US5606383A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1996 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Apr 10, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2206/004
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera capable of trimming photographing has an electric-powered zoom lens, an operating device for zooming the electric-powered zoom lens, a trimming photographing device for obtaining a pseudo zoomed-up photography by partially trimming a photographed picture at a trimming magnification .beta. which can be previously set, and a control device which sets the trimming magnification .beta. of the trimming photographing device to a maximum trimming magnification .beta.max if the operating device is moved to the zoom-up side when the electric-powered zoom lens is at the position of a maximum focal length FT, which zooms down the electric-powered zoom lens while maintaining the maximum trimming magnification .beta.max if the operating device is thereafter operated to the zoom-down side, and which changes the trimming magnification .beta. of the trimming photographing device from the maximum trimming magnification .beta.max to 1 if the operating device is further operated to the zoom-down side when the electric-powered zoom lens is at the position of a minimum focal length FW.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.