US Patent No: 5,982,548
Number of patents in Portfolio can not be more than 2000
Thin light reflectant surface and method for making and using same
Stats
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Nov 9, 1999
Issued date -
May 19, 1997
filing date -
08/858,115
serial no -
In Force
status
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Abstract
The present invention is an improved material and method for use for providing diffuse reflectivity of light. It has been determined that by employing a polymer having an index of refraction of greater than or equal to 1.42 and a porosity of greater than 10%, improved reflectivity can be achieved over existing reflectant materials having only one of these properties. Suitable materials for use in the present invention include nylon, polyvinylidene (PVDF), and cellulose acetate.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,187,390 Porous products and process therefor | 564 | 1977 | |
| 4,902,423 Highly air permeable expanded polytetrafluoroethylene membranes and process for making them | 73 | 1989 | |
| 5,596,450 Light reflectant surface and method for making and using same | 18 | 1995 | |
| 5,689,364 Light reflectant surface for photoinduction chambers | 8 | 1995 | |
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| 4,912,720 Laser cavity material | 26 | 1988 | |
| 5,462,705 Method of forming diffusely reflecting sintered fluorinated long-chain addition polymers doped with pigments for color standard use | 16 | 1993 | |
| 5,488,473 Method of and apparatus for increasing measurement sensitivity of fluorescence and luminescence | 14 | 1994 | |
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| 5,051,878 Luminaire having a lensed reflector system for improved light distribution control | 29 | 1989 | |
| 5,192,128 Lensed luminaire with lens brightness control and method | 15 | 1991 | |
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| 5,241,180 Radiation detection devices with tapered scintillator crystals | 21 | 1992 | |
| 5,378,965 Luminaire including an electrodeless discharge lamp as a light source | 11 | 1993 | |
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| 4,523,319 Laser tape systems | 21 | 1983 | |
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| 5,037,618 Oxidation chamber | 27 | 1990 | |
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| 4,772,124 Probe for a radiometer | 13 | 1987 | |
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| 4,805,181 High reflectance laser resonator cavity | 15 | 1988 | |
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| 4,764,932 Ion laser having direct liquid cooling of segmented discharge tube | 16 | 1985 | |
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| 5,422,756 Backlighting system using a retroreflecting polarizer | 208 | 1992 | |
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| 5,710,856 Light reflective sheet and light reflector using it | 17 | 1996 | |
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| 5,263,042 Diffusion reflector | 19 | 1991 | |
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| 4,994,673 Ruggedized scintillation detector | 25 | 1989 | |
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| 4,354,741 Electrochromic display device | 21 | 1980 | |
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| 4,463,045 Macroscopically expanded three-dimensional plastic web exhibiting non-glossy visible surface and cloth-like tactile impression | 268 | 1982 | |
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| 4,571,448 Thin film photovoltaic solar cell and method of making the same | 44 | 1981 | |
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| 5,116,115 Method and apparatus for measuring corneal topography | 42 | 1990 | |
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| 4,504,889 High intensity security flashlight with duffusing parabolic reflector | 26 | 1983 | |
| 5,075,827 Indirect light fixture amplification reflector system | 24 | 1990 | |