Cathode-ray tube ultraviolet light source
OwnerEric C. Bretschneiderinventor
Life of this patent
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Abstract
A cathode-ray tube ultraviolet light source includes a metal housing provided with a light-transmissive window, a heatsink disposed within the metal housing, a phosphor having a first surface and an opposing second surface, wherein the second surface of the phosphor is in thermal contact with the heatsink, and an electron gun capable of developing an electron beam to impinge upon the first surface of the phosphor, whereby light emitted from the second surface of the phosphor is directed through the light-transmissive window.
Claims17
A cathode-ray tube ultraviolet light source comprising:
- an evacuated metal housing provided with a light-transmissive window;
- a heatsink disposed within the metal housing;
- a getter material disposed within the metal housing;
- a phosphor having a first surface and an opposing second surface, wherein the second surface of the phosphor is in thermal contact with the heatsink;
- an electron gun capable of developing an electron beam to impinge upon the first surface of the phosphor;
- whereby light emitted from the first surface of the phosphor is directed through the light-transmissive window and has a wavelength in the range of 190-230 nm.
A cathode-ray tube ultraviolet light source comprising:
- an evacuated metal housing provided with a light-transmissive window, wherein the metal housing comprises a metal at least partially coated with a non-conductive material forming a porcelain coated steel;
- a heatsink disposed within the metal housing;
- a getter material disposed within the metal housing;
- a phosphor having a first surface and an opposing second surface, wherein the second surface of the phosphor is in thermal contact with the heatsink;
- an electron gun capable of developing an electron beam to impinge upon the first surface of the phosphor;
- whereby light emitted from the first surface of the phosphor is directed through the light-transmissive window.
A cathode-ray tube ultraviolet light source comprising:
- an evacuated metal housing provided with a light-transmissive window, wherein the light-transmissive window comprises a least one of quartz, magnesium fluoride, calcium fluoride and sapphire;
- a heatsink disposed within the metal housing;
- a getter material disposed within the metal housing;
- a phosphor having a first surface and an opposing second surface, wherein the second surface of the phosphor is in thermal contact with the heatsink;
- an electron gun capable of developing an electron beam to impinge upon the first surface of the phosphor:
- whereby light emitted from the first surface of the phosphor is directed through the light-transmissive window.
A cathode-ray tube ultraviolet light source comprising:
- an evacuated metal housing provided with a light-transmissive window;
- a heatsink disposed within the metal housing;
- a getter material disposed within the metal housing;
- a phosphor having a first surface and an opposing second surface, wherein the second surface of the phosphor is in thermal contact with the heatsink;
- an electron gun capable of developing an electron beam to impinge upon the first surface of the phosphor;
- and
- a deflection mechanism for the electron beam disposed within the metal housing;
- whereby light emitted from the first surface of the phosphor is directed through the light-transmissive window.
Dependencies are inferred from the claim text.