Camera based apparatus for safeguarding a machine
US9769432B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2015 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Sep 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/55
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for safeguarding a machine having a machine part performing a working movement, has a light source, a camera unit and a control unit. The light source and camera unit are attached to the machine part so as to concurrently move together with the machine part. The camera unit has an objective body with an optical lens element, an electronic image sensor arranged on a component support, an aperture stop, and a coupling part having a one-piece body by means of which the objective body and the component support are joined in a defined relative position to one another. The one-piece body fixedly rests on the component support thereby holding the aperture stop at a defined position relative to the electronic image sensor without individual adjustment. The control unit is designed to stop the working movement of the machine part depending on a signal produced by the camera unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.