CRT magnifying lens attachment and glare reduction system
First Claim
Patent Images
1. An optical element for magnifying and enhancing the image projected from a screen and for reducing glare produced by light generated externally of said screen and reflected from said screen, comprising:
- at least one fresnel lens supported adjacent said screen for magnifying the image generated by said screen;
a laminated light filter supported adjacent and parallel to said fresnel lens for reducing said glare and for enhancing said image;
said laminated light filter having a first element to retard said light generated externally and passing therethrough;
a second element positioned parallel to and adjacent said first element to vary the color of the image projected from said screen; and
a third element positioned parallel to and adjacent said first and second element to capture said retarded light preventing said light from exiting said filter;
whereby said glare is reduced and said images magnified and enhanced.
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Abstract
A CRT magnifying lens attachment and glare reduction system for use with a computer display screen. The attachment supports the magnifying lens and glare reduction system adjacent the display screen. The magnifying lens and glare reduction system includes at least on fresnel lens positioned adjacent an optical element, the optical element reduces glare and enhances the image produced by the screen.
214 Citations
5 Claims
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1. An optical element for magnifying and enhancing the image projected from a screen and for reducing glare produced by light generated externally of said screen and reflected from said screen, comprising:
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at least one fresnel lens supported adjacent said screen for magnifying the image generated by said screen; a laminated light filter supported adjacent and parallel to said fresnel lens for reducing said glare and for enhancing said image; said laminated light filter having a first element to retard said light generated externally and passing therethrough; a second element positioned parallel to and adjacent said first element to vary the color of the image projected from said screen; and a third element positioned parallel to and adjacent said first and second element to capture said retarded light preventing said light from exiting said filter; whereby said glare is reduced and said images magnified and enhanced. - View Dependent Claims (2, 3, 4)
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5. A method for correcting the image produced by a fresnel lens having chromatic aberrations therein, said chromatic aberrations creating a band of colors consisting of reds, greens, and blues said reds being distracting to a person viewing said screen, comprising the steps of:
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affixing a one quarter wave retarding element to a fresnel lens; affixing a linearly polarizing element to said one quarter wave retarding element; rotating said linear polarizing element 45 degrees with respect to said retarding element overlapping said red and blue bands of color.
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Specification