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PERIMETER SECURITY INDUSTRIES PTY LTD
| PERIMETER SECURITY INDUSTRIES PTY LTD Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20110249934 | INTRUDER DETECTION SYSTEM - An intruder detection system including a light emitting unit, a light guide, and a light receiving unit. The light emitting unit is arranged to emit light into the light guide and the light guide is arranged to guide the light to the light receiving unit. The impact of an intruder on the light guide causes changes in the characteristics of the light received at the light receiving unit. | 10-13-2011 |