Variable format viewfinder mask and lens cover in camera
US5950029A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Mar 10, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B19/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera including a viewfinder for viewing a subject to be photographed, a masking a device for the viewfinder having a number of different format mask configurations, a taking lens for forming an image of the subject, and a lens cover for the taking lens, is characterized in that the masking device and said lens cover are supported to be moved at the same time for any one of the mask configurations to be in a masking position partially masking the viewfinder when the lens cover is not covering the taking lens and for every one of the mask configurations to be respective non-masking positions not partially masking the viewfinder when the lens cover covers the taking lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.