公开(公告)号：US4307386A

公开(公告)日：1981-12-22

申请号：US967645

申请日：1978-12-08

Applicant: Richard F. Bridge

Inventor： Richard F. Bridge

IPC: G08B13/12 ,  G08B13/186 ,  G02B5/14 ,  G08B13/18

CPC classification number: G08B13/124 ,  G08B13/186 ,  Y10T156/109

Abstract: In a security system in which at least one fibre-optic wave guide, which is carried in a strand, extends along a boundary, light is directed into one end of the guide and the light leaving the guide is detected by an optical detector. An indication is given when the intensity of the detected light falls below a predetermined threshold, so as to warn when the wave guide is disturbed significantly or cut through.In order to manufacture the strand, a fibre-optic wave guide is positioned against an elongate carrier and secured to the latter by bonding agent and/or adhesive tape.A dummy strip, having identical external appearance to the strand but not including a fibre-optic wave guide, can also run along the boundary in question.

Abstract translation: 在其中至少一根光纤波导沿着边界延伸的安全系统中，光被引导到引导件的一端，并且通过光学检测器检测离开引导件的光。 当检测到的光的强度低于预定阈值时，给出指示，以便当波导被明显地干扰或切断时警告。 为了制造股线，光纤波导被定位成抵靠细长的载体，并通过粘合剂和/或胶带固定到后者上。 具有与股线相同的外观但不包括光纤波导的虚拟条带也可以沿着所讨论的边界运行。

公开(公告)号：US4521767A

公开(公告)日：1985-06-04

申请号：US274723

申请日：1981-06-18

Applicant: Richard F. Bridge

Inventor： Richard F. Bridge

IPC: E04H17/00 ,  G08B13/08 ,  G08B13/12 ,  G08B13/18 ,  G08B13/186 ,  G02B5/14

CPC classification number: G08B13/124 ,  G08B13/186

Abstract: A composite strip for use in a security system comprises an integrally barbed or serrated carrier strip having a longitudinal groove therein. A fibre-optic filament is disposed in the groove and is held therein by means of an adhesive strip which is applied to the carrier strip so as to overlie the groove. Such a composite strip may provide security against unauthorized crossing of a boundary by directing light into one end of the filament and detecting the light leaving the other end of the filament. An indication is given when the optical intensity of the detected light falls below a predetermined threshold, so as to warn when the fibre-optic filament has been disturbed significantly or cut through.

Abstract translation: 用于安全系统的复合条带包括在其中具有纵向凹槽的一体的有倒勾或锯齿形的载体条。 光纤灯丝设置在槽中，并通过粘合带保持在其中，粘合带被施加到载体带上以覆盖在槽上。 这种复合带可以通过将光引导到灯丝的一端并检测离开灯丝另一端的光来提供防止未经授权的边界交叉的安全性。 当检测到的光的光强度低于预定阈值时，给出指示，以便当光纤灯丝被明显干扰或切断时警告。