1972-02-28
1977-05-31
O'Connor, Edna M.
350 96B, 350167, G03B 2160, G02B 517
Patent
active
040266346
ABSTRACT:
A light transmitting screen capable of directing and focusing light images falling thereon, comprising a plurality of lens systems, each having a particular optical axis, making up the screen elements and each of which transmits parallel light rays incident thereon such that the light rays emerge parallel to each other. The lens systems may be of different refractive powers and have their optical axes disposed in parallel or at varying angles with each other and all are adjacently arranged in the form of a flat, curved or segmented screen with front and rear surfaces. When light is incident upon the screen from one side, the light rays pass through and are directed by the individual systems in accordance with the arrangement of their optical axes and refractive powers, so that many varying optical and lighting effects may be achieved on the other side. Each lens system may comprise a series of suitable lens surfaces arranged on a common optical axis or an optical cylinder or fiber guide.
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Uchida et al. IEEE Journal of Quantum Electronics "Optical Characteristics of a Light-Focusing Fiber Guide and its Applications," vol. QE-6, No. 10, 1970.
Kitano et al. Journal of the Japan Society of Applied Physics, "A Light-Focusing Fiber Guide Prepared by Ion-Exchange Techniques," vol. 39, 1970, pp. 63-70, reprinted from 1969.
O'Connor Edna M.
Ricoh Co. Ltd.
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