Ultraviolet radiometer
First Claim
Patent Images
1. An ultraviolet radiometer, comprising:
- means for converting incident UV radiation to fluorescent radiation, said UV radiation converting means being a plate constructed of fluorescent optically transparent material selected from undoped crystal, said undoped crystal being a sapphire;
means for detecting the fluorescent radiation, the detecting means including means for converting the optical signal corresponding to the power of detected fluorescent emission radiation to an electrical signal; and
means operatively connected with said detecting means to translate the electrical signal to indicate the power or energy of the UV radiation.
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Abstract
An ultraviolet radiometer converts UV radiation to fluorescent radiation. An optical signal corresponding to the intensity of detected fluorescent radiation is converted to an electrical signal corresponding to the power or energy of the detected fluorescent emission. A monitoring element receives the electrical signal and monitors the power or energy of the UV radiation.
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Citations
22 Claims
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1. An ultraviolet radiometer, comprising:
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means for converting incident UV radiation to fluorescent radiation, said UV radiation converting means being a plate constructed of fluorescent optically transparent material selected from undoped crystal, said undoped crystal being a sapphire; means for detecting the fluorescent radiation, the detecting means including means for converting the optical signal corresponding to the power of detected fluorescent emission radiation to an electrical signal; and means operatively connected with said detecting means to translate the electrical signal to indicate the power or energy of the UV radiation. - View Dependent Claims (2)
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3. An ultraviolet radiometer, comprising:
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means for converting incident UV radiation to fluorescent radiation, said UV radiation converting means being a plate constructed of fluorescent optically transparent material selected from the group consisting essentially of rare earth doped crystals, rare earth doped glasses, undoped crystals and fluorescent mediums suspended in plastic; means for detecting the fluorescent radiation, said detecting means including means for converting the optical signal corresponding to the power of detected fluorescent emission radiation to an electrical signal, the detecting means being disposed adjacent the side of the converting means to which UV radiation is incident; and means operatively connected with said detecting means to translate the electrical signal to indicate the power or energy of the UV radiation.
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4. An ultraviolet radiometer, comprising:
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means for converting incident UV radiation to fluorescent radiation, said UV radiation converting means being a plate constructed of fluorescent optically transparent material selected from the group consisting essentially of rare earth doped crystals, rare earth doped glasses, undoped crystals and fluorescent mediums suspended in plastic; means for detecting the fluorescent radiation, the detecting means including means for converting the optical signal corresponding to the power of detected fluorescent emission radiation to an electrical signal, said detecting means further comprising; a plurality of optical fibers, a first end of each of said optical fibers being adjacent said converting means; and a second end of each of said optical fibers being connected to the optical signal converting means; and means operatively connected with said detecting means to translate the electrical signal to indicate the power or energy of the UV radiation. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An ultraviolet radiometer, comprising:
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means for converting incident UV radiation to fluorescent radiation, said UV radiation converting means being a plate constructed of fluorescent optically transparent material selected from the group consisting essentially of rare earth doped crystals, rare earth doped glasses, undoped crystals and fluorescent mediums suspended in plastic; means for detecting the fluorescent radiation, the detecting means including means for converting the optical signal corresponding to the power of detected fluorescent emission radiation to an electrical signal; means operatively connected with said detecting means to translate the electrical signal to indicate the power or energy of the UV radiation; and reflector means disposed adjacent said plate for reflecting UV radiation initially transmitted through said plate back onto said plate. - View Dependent Claims (15)
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16. An ultraviolet radiometer, comprising:
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means for converting incident UV radiation to fluorescent radiation, said UV radiation converting means being a plate constructed of fluorescent optically transparent material selected from the group consisting essentially of rare earth doped crystals, rare earth doped glasses, undoped crystals and fluorescent mediums suspended in plastic; means for detecting the flourescent radiation, the detecting means including means for converting the optical signal corresponding to the power of detected fluorescent emission radiation to an electrical signal; means operatively connected with said detecting means to translate the electrical signal to indicate the power or energy of the UV radiation; and heat sink means bonded to the surface of said plate, opposite from which the UV radiation is incident, for absorbing heat generated in the plate.
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17. An ultraviolet radiometer, comprising:
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means for converting incident UV radiation to fluorescent radiation, said UV radiation converting means being a plate constructed of fluorescent optically transparent material selected from the group consisting essentially of rare earth doped crystals, rare earth doped glasses, undoped crystals and fluorescent mediums suspended in plastic;
the converting means further comprising;a polished or coated edge with means to reflect fluorescent radiation back into the plate; and a gap means in the polished or coated edge to enable fluorescent radiation to escape from the plate for detection by the detecting means; means for detecting the fluorescent radiation, the detecting means including means for converting the optical signal corresponding to the power of detected fluorescent emission radiation to an electrical signal; and means operatively connected with said detecting means to translate the electrical signal to indicate the power or energy of the UV radiation.
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18. The method of measuring the intensity of ultraviolet radiation, comprising the steps of:
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providing a source of UV radiation; converting the UV radiation into fluorescent radiation linearly proportional to the UV radiation by directing the UV radiation onto an undoped crystal of sapphire so as to emit the fluorescent radiation; detecting the fluorescent radiation; converting the optical signal corresponding to the detected fluorescent radiation to an electrical signal; and converting the electrical signal to a value indicating the power of the UV radiation. - View Dependent Claims (19, 20)
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21. An ultraviolet radiometer, comprising:
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means for converting incident UV radiation to fluorescent radiation, said UV radiation converting means being a plate constructed of fluorescent optically transparent material, said transparent material being an undoped crystal; means for detecting the fluorescent radiation, the detecting means including means for converting the optical signal corresponding to the power of detected fluorescent emission radiation to an electrical signal; and means operatively connected with said detecting means translate the electrical signal to indicate the power or energy to the UV radiation.
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22. An ultraviolet radiometer, comprising:
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means for converting incident UV radiation to fluorescent radiation, said UV radiation converting means being a plate constructed of fluorescent optically transparent material, said transparent material being a fluorescent medium suspended in plastic; means for detecting the fluorescent radiation, the detecting means including means for converting the optical signal corresponding to the power of detected fluorescent emission radiation to an electrical signal; and means operatively connected with said detecting means translate the electrical signal to indicate the power or energy of the UV radiation.
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Specification