Remote control device for camera
US4290685A · kind A · utility
Inventor
Key dates
| Filing date | Feb 22, 1980 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Feb 22, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/38
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is described a device for remotely controlling the shutter of a camera. The device includes a housing which incorporates a microphone for receiving an acoustic wave having a relatively high frequency in an audio frequency range, which is generated by a tone generating source, an amplifier circuit for amplifying the output of the microphone, an actuator which is caused to make one reciprocation by the output of the amplifier circuit, and an electric source for energizing the amplifier circuit and the acturator. The device further includes mounting device for fixedly securing the housing to the camera, and a release device for operating the shutter of the camera with the aid of one reciprocation of the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.