Motion picture camera
US4087164A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1976 |
| Grant date | May 2, 1978 |
| Priority date | — |
| Expiry date | Aug 31, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/0997
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A motion picture camera wherein a part of the light entering the camera lens from the subject being photographed is reflected by a reflector on the shutter to a light sensitive element of exposure metering means. In order to insure that, for a given degree of brightness of the scene, the same quantity of light reaches the sensitive element regardless of whether the shutter is in motion or is stationary, an adjustable reflector is interposed between the shutter and the light sensitive element. This adjustable reflector is shifted from one position to another position by operation of the camera release member. A bendable ear is provided for calibration purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.