Motion detector with external range adjustment
US5757004A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Aug 9, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/19
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A motion detector with a lens-sensor mounting and adjustment arrangement that permits a user to adjust the effective range of the motion detector without altering the sensor's sensitivity settings. The mounting arrangement provides for relative movement of the sensor in relation to the lens matrix through an adjustment accessible to a user from outside the motion detector housing. In a disclosed embodiment a sensor is mounted on a printed circuit board that is disposed to slide on elongate rails. An expansible actuator assembly includes a threaded traveling member coupled to a threaded drive member, one end being accessible through the motion detector housing for engagement by a user and the other end being coupled to the printed circuit board so as to actuate movement of the sensor with respect to the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.