Light responsive device for monitoring on-line indicator lights
First Claim
Patent Images
1. A light-responsive device comprising:
- a housing having first and second surfaces and a light access port in the first surface communicating with a recess within the housing;
a photovoltaic device located within said recess;
adhesive on said first surface of said housing to attached said housing to a receiving surface surrounding a light source, a light-tight connection being established between said first surface and said receiving surface when said housing is so attached;
said housing providing a substantially opaque enclosure that permits no significant access of ambient light to the photovoltaic device through said housing when the housing is attached to such a receivingan observation port in said housing for visually monitoring on/off status of said light source.
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Reexamination
Accused Products
Abstract
A photovoltaic device is provided that is adapted to monitor an "on-line" light source and respond to on/off changes of the source while at the same time being adapted for visual inspection of the light. The device is adapted for incorporation into a remote warning system which may also be able to activate remedial measures to correct deviations signalled by a change in the "on-line" light status.
25 Citations
35 Claims
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1. A light-responsive device comprising:
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a housing having first and second surfaces and a light access port in the first surface communicating with a recess within the housing; a photovoltaic device located within said recess; adhesive on said first surface of said housing to attached said housing to a receiving surface surrounding a light source, a light-tight connection being established between said first surface and said receiving surface when said housing is so attached; said housing providing a substantially opaque enclosure that permits no significant access of ambient light to the photovoltaic device through said housing when the housing is attached to such a receiving an observation port in said housing for visually monitoring on/off status of said light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A light responsive device comprising:
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(a) a housing fabricated from a black plastic member and having first and second surfaces;
an internal recess communicating with a light access port in the first surface; and
a clear, plastic rod disposed within a hole in said housing, the hole being adjacent the recess and traversing said housing and ending in an upper observation port in said second surface and in a lower observation port in said first surface, the upper observation port in the second surface being connected with the lower observation port in the first surface through a light path including the clear plastic rod;(b) a photovoltaic device located in the recess within the housing and responsive to light, from a light source surrounded by a receiving surface, reaching it through the light access port, generating an electric current proportional to the light intensity, said black plastic housing member providing a substantially opaque enclosure that permits no significant access of ambient light to the photovoltaic device through said housing when the housing is attached to said receiving surface; (c) leads for conducting said current from the photovoltaic device; and (d) a double-sided adhesive, clear, plastic strip adhered to the first surface of the housing providing adhesive to attach the housing to the receiving surface. - View Dependent Claims (23, 24)
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25. A light-responsive device comprising:
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(a) a housing comprising a square plastic tube having first and second ends and, located inside said tube, a clear cylindrical plastic rod having a diameter slightly smaller than an internal side dimension of the square tube, and a length slightly less than the square tube, the first end of the tube being closed by a first transparent cover adhered to both the end of the square tube and the end of the adjacent rod, and the second end of the tube being covered by a clear, plastic double-sided adhesive strip adhered to the second end of the square tube, the cylindrical surface of the rod and the internal surface of the square tube being painted a nonreflecting matte black; (b) a photovoltaic device located in a recess within the tube between the end of the rod and the clear plastic strip, said device being responsive to the light, from a light source, reaching it and generating an electric current proportional to the light intensity; and (c) leads for conducting said current from the photovoltaic device. - View Dependent Claims (26, 27)
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28. A light-responsive device comprising:
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(a) a plurality of laminae of a resilient foam material adhered together to form a housing having first and second opposed surfaces, each lamina having a centrally located hole such that the housing has an internal recess extending from the first surface to the opposed second surface, the second surface being covered by a transparent, colored first cover sheet having a printed pattern over the opening communicating with the recess so as to limit access of light therethrough, and the first surface being covered by a transparent second cover sheet; (b) a photovoltaic device located in the recess within the housing and responsive to light, from a light source, reaching it through the light access port, generating an electric current proportional to the light intensity; (c) leads for conducting said current from the photovoltaic device; and (d) a double-sided adhesive strip adhered to the second transparent cover sheet and having an aperture permitting access of light to the photovoltaic device. - View Dependent Claims (29, 30, 31)
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32. A warning system incorporating a light-responsive device comprising:
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a housing having a first surface and a light access port in said first surface communicating with a recess within the housing; a photovoltaic device located within said recess; adhesive on said first surface of said housing attaching said housing to a receiving surface surrounding a light source, a light-tight connection being established between said housing and said receiving surface when said housing is so attached, said housing providing a substantially opaque enclosure that permits no significant access of ambient light to the photovoltaic device; and an observation port in an exterior surface of said housing connected by a light-path to said light access port which allows observation from outside said housing of on/off status of the light source; means for registering a change in the on/off status of said light source, activated by a change of voltage output from the photovoltaic device. - View Dependent Claims (33, 34)
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35. A light-responsive device comprising:
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a housing having first and second surfaces and a light access port in the first surface communicating with a recess within the housing; a photovoltaic device located within said recess; means for attaching the first surface of said housing to a receiving surface surrounding a light source; said housing providing a substantially opaque enclosure that permits no significant access of ambient light to the photovoltaic device through said housing when the housing is attached to such a receiving surface; and an observation port in said housing for visually monitoring on/off status of said light source.
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Specification