Self-timer device for motion picture camera
US4046465A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1975 |
| Grant date | Sep 6, 1977 |
| Priority date | — |
| Expiry date | Oct 21, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A self-timer device for a motion picture camera of the type having a first motor for driving a film feeding device and a shutter device and a second motor for driving other moving parts such as a zoom lens system. In the device, automatic photographing controlling means which is provided with cam portions for controlling the timing for starting and stopping the camera release operation is operated by the second motor. For photographing, an interlock arrangement between the second motor and the other moving parts which are to be driven by the motor is released while, at the same time, the cam portions of the controlling means are brought into a given relation to a camera release arrangement. This is done in such a manner that the timing for starting and stopping the camera release, i.e. the time intervals between setting for automatic photographing and the actual commencement of it and between the start of photographing and the end of it, is controlled by the cam portions of the controlling means as the controlling means is operated by the second motor to accomplish an automatic photographing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.