Fast operating slit shutter camera
US3988754A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1975 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | May 28, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention is directed to a photographic camera having a slit shutter which utilizes two cover systems which operate above the plane of the image. These systems are movable perpendicularly to the direction of movement of the film within the camera. Each cover system comprises displaceable segments movable relative to each other. These can be brought into and out of overlapping position at a corresponding opposed end of the image window. When open, they extend across the window to cover the window, and when closed they recede into overlapping position to uncover the window. While broadly speaking, the so-called "slit shutter" type of shutter has been used, the herein described proposal for providing the open and closed systems is unique. This invention provides multiple segments which are movable relative to each other in which the corresponding slit-forming segment of each cover system is guidingly supported for displacement by link means and at least two cover segments are associated with each slit-forming segment and correspondingly guidingly supported for displacement by straight guide means, preferably so that each of the slit-forming segments and the cover segments associa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.