Illumination – With polarizer
Patent
1987-11-13
1989-01-03
Lazarus, Ira S.
Illumination
With polarizer
362268, 362331, 362339, F21V 914, F21V 502
Patent
active
047961600
ABSTRACT:
An improvement in a Radialens light control panel is comprised of the integral fabrication of a polarizing layer to the lowermost surface of the lighting panel opposing that surface of the Radialens panel in which a plurality of prismatic surfaces or lens elements is defined. The polarizing layer is laminated to the opposite surface of the Radialens panel after the Radialens panel is embossed and is still in a partially heated and plastic state. No adhesives are used to secure the bond between the polarizing layer and rear flat surface of the Radialens panel. The plurality of prisms or lenses defined in the opposing surface of the Radialens panel is embossed into the still plastic panel either immediately before or subsequent to the lamination with the polarizing sheet. As a result, polarized light is preferentially distributed to provide higher visual effectiveness and contrast, less reflective glare, increased visual comfort and less direct glare (VCP), than could be achieved with a Radialens panel along or from the polarizing sheet alone without the preferential distribution offered by the Radialens panel.
REFERENCES:
patent: Re26506 (1968-12-01), Rogers
patent: 2334418 (1943-11-01), Land
patent: 3772128 (1973-11-01), Kahn et al.
patent: 3829680 (1974-08-01), Jones
patent: 3876285 (1975-04-01), Schwarzmuller
patent: 4020336 (1977-04-01), Linder
patent: 4372656 (1983-02-01), Marks et al.
Lazarus Ira S.
Neil Peggy
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