Security fence
First Claim
Patent Images
1. A security fence comprising:
- a multiplicity of hollow rigid bar elements disposed in a fence configuration;
an optical fiber extending through at least some of said hollow rigid bar elements; and
means for providing predetermined bending of said optical fiber in response to bending of at least some of the rigid bar elements by at least a given amount, said means including optical fiber supporting means disposed within each of the rigid bar elements containing said optical fiber and arranged so as not to be displaced in response to bending of the corresponding rigid bar element up to a given amount.
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Accused Products
Abstract
A security fence including a multiplicity of rigid bar elements disposed in a fence configuration, an optical fiber extending through at least some of the hollow rigid bar elements and apparatus for providing predetermined bending of the optical fiber in response to bending of at least some of the rigid bar elements by at least a given amount.
64 Citations
15 Claims
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1. A security fence comprising:
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a multiplicity of hollow rigid bar elements disposed in a fence configuration; an optical fiber extending through at least some of said hollow rigid bar elements; and means for providing predetermined bending of said optical fiber in response to bending of at least some of the rigid bar elements by at least a given amount, said means including optical fiber supporting means disposed within each of the rigid bar elements containing said optical fiber and arranged so as not to be displaced in response to bending of the corresponding rigid bar element up to a given amount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A security fence comprising:
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a multiplicity of rigid bar elements disposed in a fence configuration; an optical fiber associated with at least some of said rigid bar elements; and means for providing predetermined bending of said optical fiber in response to bending of at least some of the rigid bar elements by at least a given amount, and wherein said means for providing predetermined bending comprises; at least first and second optical fiber securing elements supporting said optical fiber and disposed within eac of the rigid bar elements associated with said optical fiber and arranged so as not to be displaced in response to bending of the corresponding rigid bar element up to a given amount; and at least one intermediate optical fiber securing element disposed intermediate the at least first and second optical fiber securing elements and arranged to be displaced in response to bending of the corresponding rigid bar element, whereby bending of the corresponding rigid bar element causes displacement of the at least one intermediate element relative to the at least first and second elements, producing sensible bending of the optical fiber. - View Dependent Claims (15)
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Specification