Daniel Karpen

Professional Engineer & Consultant, P.C.
Mr. Karpen is an inventor with eight US Patents. If you wish to license these inventions or use them, please call (631) 427-0723.
 

Abstract: A full spectrum polarized lighting fixture for general commercial, institutional, and industrial use, and for use in offices with computer terminals and video display terminals. The lighting fixture contains an electronic solid state ballast, a polarizing lense, and a full spectrum color corrected lamp. The lense is a polarized diffuser to provide glare free light with excellent contrast. The fixture contains a full spectrum color corrected lamp to simulate daylight. The combination of the full spectrum lamp and the polarized diffuser provides for light with the spectral energy distribution characteristics and light polarization of natural daylight.


Abstract: An improvement in a multi-layer polarized light control panel comprising an ultraviolet transmitting acrylic supporting structure. Prior art multi-layer polarized light control panels are made with an ultraviolet absorbing acrylic supporting sheet, which blocks most ultraviolet light below 380 nanometers. Thus, the ultraviolet light which is emitted by fluorescent lamps, and in particular by specially formulated fluorescent lamps to provide so called "full-spectrum" light, is blocked by the prior art polarized light control panels. Use of an ultraviolet transmitting acrylic supporting sheet would permit the transmission of the ultraviolet light emitted from the lamp through the acrylic supporting sheet, which would then be polarized by the multi-layer polarized light control panel. The light diffusing polarized control panel can also be manufactured with an ultraviolet transmitting acrylic, providing a multi-layer polarizer of unsurpassed visual comfort probability. Transmission of ultraviolet light through the multi-layer polarized control panel would eliminate the glare from the ultraviolet light, as well as the visible light. There is a significant improvement of the apparent brightness of paper and textile products when viewed under light sources equipped with full-spectrum, as well as standard fluorescent lamps, as virtually all paper materials and textiles have chemical substances which fluoresce under ultraviolet light.


Abstract: A lamp, suitable for use as a headlight for land, water and aircraft and motor vehicles in particular. The lamp includes glass containing Neodymium Oxide, a rare earth compound. The Neodymium Oxide filters out the naturally occurring yellow light produced by a hot incandescent filament, thereby producing a color-corrected light. Yellow light contributes to a lack of contrast. Improvement in contrast permits, for example, a motor vehicle driver to better discriminate the contrast of objects when there is no daylight and the only illumination is artificial. For drivers, in particular, elimination of the excessive yellow light lessens eyestrain currently resulting from light emitted by the conventional headlights of oncoming vehicles during hours of darkness. Lamps of increased wattage than present can be used without increasing eyestrain from opposing motor vehicles, which in turn leads to better contrast, and thus improved night time visual acuity, resulting from the increased amount of light for a driver of a motor vehicle equipped with the herein disclosed color corrected headlight.


Abstract: A rearview mirror suitable for use as a rearview mirror for land, water and aircraft and motor vehicles in particular. The glass mirror includes glass containing Neodymium Oxide, a rare earth compound. The Neodymium Oxide filters out the naturally occurring yellow light produced by a hot incandescent filament, thereby producing a color-corrected light. Yellow light contributes to a lack of contrast. Improvement in contrast permits, for example, a motor vehicle driver to better discriminate the contrast of objects when there is no daylight and the only illumination is artificial. For drivers, in particular, elimination of the excessive yellow light lessens eyestrain currently resulting from light emitted by the conventional headlights of vehicles in the rearview mirror during hours of darkness. Additionally, the Neodymium Oxide in the glass will filter out the yellow light from the rising or setting sun in the rearview mirror.


Abstract: A high intensity discharge lamp, suitable for use as a headlight for land, rail, water, aircraft, and motor vehicles in particular. The lamp includes glass containing Neodymium Oxide, a rare earth compound. The Neodymium Oxide filters out the yellow light portion of the spectrum, thereby producing a color corrected light. Incorporation of yellow light in the light spectrum desaturates colors and reduces contrast. Improvement in contrast and a reduction in glare permits, for example, a motor vehicle driver to better discriminate the contrast of objects when there is no daylight and the only illumination is artificial. For drivers, in particular, elimination of the yellow light lessens eye strain currently resulting from light emitted by the conventional headlights of oncoming vehicles during hours of darkness.


Abstract: A reduced glare window glass, suitable for use in glass window, containing Neodymium Oxide, a rare earth compound. The Neodymium Oxide filters out the yellow light of the spectrum, thereby providing improved vision. Incorporation of yellow light in the light spectrum desaturates colors and reduces contrast. Improvement in contrast and a reduction in glare permits, for example, one to use this window glass in a building to reduce glare without the expense of blinds or curtains that are normally used to reduce glare. Additionally, the light transmittance is kept high, as high as 61.81 percent with a Neodymium Oxide doping of the glass in the amount of at least 0.0244 grams per square centimeter. This glass can be used for multiple layers of glass in assembled glazing.


Abstract: Motor vehicle windshields and safety glazing material, suitable for use as motor vehicle windshields and safety glazing material for automobiles, trucks, buses, motorcycles, locomotives. sport utility vehicles, all terrain vehicles, and vans. The motor vehicle windshields and safety glazing material contains Neodymium Oxide, a rare earth compound. The Neodymium Oxide filters out the yellow portion of the spectrum, reducing glare. Incorporation of yellow light in the spectrum desaturates colors and reduces contrast. Improvement in contrast and a reduction in glare permits, for example, a motor vehicle driver to better discriminate the contrast of objects when there is no daylight and the only illumination is artificial. For drivers, in particular, elimination of the yellow light lessens eye strain currently resulting from light emitted by the conventional headlights of oncoming vehicles during hours of darkness. Neodymium Oxide can also be added to safety glazing materials for use in bullet resistant shields.


ABSTRACT: A magnetically shielded fluorescent lamp ballast case for shielding human beings from the negative effects of magnetic fields emanating from a fluorescent lamp ballast is made of a ferromagnetic alloy, or lined on the inside or the outside of the fluorescent lamp ballast case with such foil alloys. The ferromagnetic alloy for the magnetically shielded fluorescent lamp ballast case is a soft magnetic material. The soft magnetic material is a metal alloy containing one or more than one of the following elements: iron, nickel, or cobalt. The fluorescent lamp ballast case can be made of steel or aluminum, and lined on the inside or the outside of the ballast case with a ferromagnetic foil alloy which is attached to the steel or aluminum by adhesive. The magnetically shielded fluorescent lamp ballast case for a fluorescent lamp ballast can be employed for core coil fluorescent lamp ballasts or for electronic solid state fluorescent lamp ballasts. There is a substantial attenuation of the magnetic component of the electromagnetic field, particularly of frequencies up to about 100 Kilohertz.


3 Harbor Hill DriveHuntington, New York 11743(631) 427-0723