Other

B Optical

Tds Patent Management, Inc.

Marv Hodges, Inc.

Marvin P Hodges

Richard A Buchroeder

Gilbert P Hodges

A flexible optical surface, film or laminate using a non-rigid support substrate with a sufficient modulus of elasticity defining a controllable surface having a flat state so that repeatedly rolling-up the support substrate into a coiled state does not influence the flat state of the optical surface. The controllable surface can have one or more optical layers secured to the support substrate and use an optical pattern with predetermined optical characteristics to modulate incident light energy. One of the optical layers can be a reflective layer for forming a reflective controllable surface. The predetermined optical characteristic can modulate incident light energy to varying degrees such as by using a differential refraction or gain optical pattern according to the laws of optics.

Flexible controllable optical surface and method of making the same

A lens system that utilize a high refractive index enveloping medium in which one or more lens elements of low refractive index material are interspersed within the fluid is disclosed. Preferably, the enveloping medium is a liquid optical fluid contained in a hollow shell. Hollow air-filled chambers, fabricated from a material similar in refractive index as that of the fluid, are supported in the liquid and serve as low index refractive elements in the higher index enveloping medium.

High refraction index enveloping medium lens system

A high grain optical fiber viewing device utilizes image and object planes that are orthogonal to the fiber axis. Optics are provided at the object plane that ultimately defines the audience window, which can be varied and changed at will. Anti-reflectant immersed optics can be added to the input plane to improve efficiency.

High gain optical fiber viewing device

A multiple tube projection television system. At least two image generating cathode ray tubes are provided, having an image generating surface which is concave. The radius of curvature of the image generating tubes is selected to be between 1.2 and 2 times the image diagonal of each tube. Dichroic mirror means are provided to combine the images produced from each tube. A projection lens system is positioned at an optical distance from each tube which is substantially equal to the radius of curvature of the concave phosphor surface. The combination provides for an optimum amount of light to the entrance aperture of the projection lens system.

High brightness projection TV system using one or more CRTs with a

A reflector and method for making the same involves joining a set of curved reflective segments together to form a concave reflector having a focal point common to all of the segments. Each segment is conveniently a quarter section of the overall reflector, for example, and includes a pair of connecting plates arranged generally perpendicularly with respect to one another along its peripheral edges. The plates of adjacent segments may be joined together such that each segment and its associated plates are directed generally towards the common focal point. The various segments may be made by conventional plastic forming techniques and coated on one side thereof with reflective material.

Reflector with attenuating connecting plates

A reflective film suitable for reflecting light and radio frequency energy includes a thin annealed metal foil affixed to a polymeric carrier layer or substrate wherein the polymeric carrier is thicker than the metal foil so that the foil tends to assume the physical properties, and particularly the elongation of the carrier without rupture or surface cracking of the foil upon stretching. In this manner, the polymer-metal foil laminate can be substantially deformed and stretched to fit complex shapes while maintaining a continuous, 100% reflective foil layer. The elasticity and yield strength of the substrate are selected to permit the combined foil and substrate to be stretched to fit complex shapes.

Reflective film and method of applying same

A projection lens system of the type used in connection with cathode ray tubes, and more specifically a cathode ray tube projection system having an internal lens folding means, useful in projecting an image or series of images on a screen.

Fresnel lens projection system with high gain screen

Fresnel lens system

Viewing screen and supporting structure

The improved projection screen of the invention comprises a substrate of extended area upon which has been deposited, as by printing, or casting, in accordance with the method, a pattern of liquid-containing elements of desired shape and size, which are then solidifed as by drying or chilling, in accordance with the method, to permanent light-affecting form. In one embodiment, the liquid includes a thixotropic agent to aid in shape retention during permanent solidification. Such liquid may comprise a polymer such as polyvinyl chloride, or the like, to which has been added a hardening agent and/or slip agent. Permanent solidification can be accomplished by drying, catalysis, temperature reduction or elevation or any other suitable means. In another embodiment, a substrate can be extrusion casted or the like with one surface bearing the desired optical shape, or the surface of a preformed heat deformable substrate can be heated and deformed to the desired optical configuration and then solidified, as by chilling. the solidified optical elements can be in any desired size, pattern, shape and profile thickness and may be transparent or opaque, with or without light-defracting inclusions and/or matte surface portions or the like. The substrate surface to which the elements are attached may be specular, semi-specular, non-specular or transparent and the substrate may be rigid or flexible. The optical elements and/or the substrate can be metallized, if desired. The method is rapid, simple, inexpensive and reproducible and has great flexiblity. The projection screen produced by the method has carefully controlled optical properties which can be tailored for desired applications.

Projection screen and method of making same

A system for projecting a color television image is described which comprises a plurality of cathode ray tubes, each of different monochromatic color and each having an image display screen, an optic having an equal plurality of successive reflective surfaces, each being selectively reflective to one of the different monochromatic colors and positioned such that each surface reflects an image appearing on the display screen of one of the plurality of tubes, and a lens disposed behind the tubes to transmit a composite color image of the images reflected from the successive reflective surfaces.

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St. Petersburg, FL, United States of America

Marvin P Hodges