Protective light image translating system

Claim 2

A protective light-translating system having the capability to show differentiation between different intensities of light and to show fluctuation in light intensities, comprising in combination: a metallic electrically conducting, light opaque rod having a relatively thin electroluminescent film on one end thereof and a photoconductive film on the other end thereof; said rod comprising the sole support means for the electroluminescent and photoconductive films; a pair of transparent flat electrodes spaced apart in parallel relation to each other at opposite ends of said rod and having thin transparent conducting surface films in contact therewith; and means for applying an operating voltage between said electrodes in connection with the said surface films to effect a minimum glow on said electroluminescent film with a predetermined minimum light level on said photoconductive film, thereby to transmit the effect of light variations through said rod from the photoconductive end without the transmission of incident light thereon.

Claim 3

A light translating system as defined in claim 1, wherein the electroluminescent film is composed of a compound of a metal, said metal being selected from the group consisting of aluminum, cadmium and zinc and said compound being of relatively high electrical impedance and dielectric breakdown strength, and wherein the photoconductive means is a cadmium sulfide film of substantially equal impedance.

Claim 4

A light translating system as defined in claim 1, wherein the electroluminescent film is an anodic film of impurity-doped aluminum oxide, and wherein the photoconductive means is a thin anodic film of cadmium sulfide.

Claim 5

A protective light-translating system, having the capability to show differentiation between different intensities of light and to show fluctuation in light intensities, comprising in combination; a plurality of like electrically insulated light opaque metallic rods each having an electroluminescent film thereon at one end and a photoconductive film thereon at the other end said rods each comprising the sole support means for their respective electroluminescent and photoconductive films; a pair of transparent flat disclike end electrodes in spaced relation to each other; said metallic rods mounted in tight parallel relation with like ends together between and abutting said end electrodes to provide composite electroluminescent and photoconductive end surfaces in contact with said electrodes and a series current paths through said end films and rods between said electrodes; and means connected with said end electrodes for applying an operating voltage therebetween of a magnitude to effect current flow through said path and an initial visible glow on the composite electroluminescent surface with predetermined minimum illumination on the photoconductive surface, thereby to effect light image translation in varying degrees through said rods individually from the photoconductive surface ''''without the transmission of incident light thereon'''' to the electroluminescent surface, and respective image pickup and reproduction thereby in a mosaic pattern and with limited brightness.

Claim 6

A protective light-translating system, having the capability to show differentiation between different intensities of light and to show fluctuation in light intensities, comprising in combination; a plurality of like electrically insulated light opaque metallic rods each having an electroluminescent film thereon at one end and a photoconductive film thereon at the other end said rods each comprising the sole support means for their respective electroluminescent and photoconductive films; a pair of transparent flat disclike end electrodes in spaced relation to each other; said metallic rods mounted in tight parallel relation with like ends together between and abutting said end electrodes to provide composite electroluminescent and photoconductive end surfaces in contact with said electrodes and a series current paths through said end films and rods between said electrodes; and means connected with said end electrodes for applying an operating voltage therebetween of a magnitude to effect current flow through said path and an initial visible glow on the composite electroluminescent surface with predetermined minimum illumination on the photoconductive surface, thereby to effect light image translation in varying degrees through said rods individually from the photoconductive surface ''''without the transmission of incident light thereon'''' to the electroluminescent surface, and respective image pickup and reproduction thereby in a mosaic pattern and with limited brightness.

Claim 7

A protective light image translating system as defined in claim 4, wherein the electroluminescent and the photoconductive films on the rods are respectively of aluminum oxide and cadmium sulfide and wherein the end electrodes are of glass coated on each contact surface with tin oxide in a thin transparent film to render the glass surface electrically conducting.

Claim 8

A protective light image translating system as defined in claim 5, wherein the electrical conductivity between the end electrodes and the rods through said end film is enhanced by an interposed viscous transparent contact film containing boric acid.

Claim 9

A light image translating system for eye protection against nuclear and laser flash effects, having the capability to show differentiation between different intensities of light and to show fluctuation in light intensities, comprising in combination: a pair of spaced transparent flat electrodes providing light image input and output elements for said system; means providing a thin transparent electrically conducting film on one face of each of said electrodes; a plurality of like electRically conducting, light opaque rods insulated one from the other and extending in tightly bunched parallel relation between said electrodes and the conducting films thereon as individual current conductors and light image translating elements for said system; said rods being of equal length and each being a small fraction of an inch in diameter to provide two finely divided high resolution composite flat end surfaces at said electrodes; means providing a photoconductive film on each rod in the composite end surfaces at the input electrode; means providing a relatively thin electroluminescent film on each rod in the composite end surface at the output electrode, said rods each comprising the sole support means for their respective electroluminescent and photoconductive films; and means connected with said electrodes and the conducting films thereon for applying an operating voltage thereto of a value for effecting a current flow therefrom through said rods and end surfaces to effect an initial glow in the electroluminescent surface in response to minimum illumination of the photoconductive surface, thereby to effect light image translation through said rods by current variation and voltage change on said end surface, and respective change pickup and reproduction with brightness limited to safe levels independent of incident light intensity and wave length and without transmission of incident light.

Claim 10

A light image translating system for eye protection against nuclear and laser flash effects, having the capability to show differentiation between different intensities of light and to show fluctuation in light intensities, comprising in combination: a pair of spaced transparent flat electrodes providing light image input and output elements for said system; means providing a thin transparent electrically conducting film on one face of each of said electrodes; a plurality of like electRically conducting, light opaque rods insulated one from the other and extending in tightly bunched parallel relation between said electrodes and the conducting films thereon as individual current conductors and light image translating elements for said system; said rods being of equal length and each being a small fraction of an inch in diameter to provide two finely divided high resolution composite flat end surfaces at said electrodes; means providing a photoconductive film on each rod in the composite end surfaces at the input electrode; means providing a relatively thin electroluminescent film on each rod in the composite end surface at the output electrode, said rods each comprising the sole support means for their respective electroluminescent and photoconductive films; and means connected with said electrodes and the conducting films thereon for applying an operating voltage thereto of a value for effecting a current flow therefrom through said rods and end surfaces to effect an initial glow in the electroluminescent surface in response to minimum illumination of the photoconductive surface, thereby to effect light image translation through said rods by current variation and voltage change on said end surface, and respective change pickup and reproduction with brightness limited to safe levels independent of incident light intensity and wave length and without transmission of incident light.

Claim 11

A light image translating system as defined in claim 7, wherein the electrically conducting rods are of a material which can be anodized and which are insulated each with an anodic film along its entire length, and wherein the electroluminescent film on each rod is of aluminum oxide and the photoconductive film on each rod is of cadmium sulfide.

Claim 12

A light image translating system as defined in claim 7, wherein the electrically conducting rods are composed of metal selected from the group consisting of aluminum, cadmium and zinc, and wherein the electroluminescent film on each rod is of zinc sulfide and the photoconductive film on each rod is cadmium sulfide.

Claim 13

A light-translating system, having the capability to show differentiation between intensities of light and to show fluctuation in light intensities, comprising in combination: a transparent electrode having a conducting surface, an electrically conducting transparent viscous layer in contact with said surface; an elongated slender metal, light-opaque rod having an electroluminescent layer on one end in contact with said viscous layer; a photoconductive layer on the opposite end of said rod, said rod comprising the sole support means for the electroluminescent and photoconductive films; a second electrically conducting transparent viscous layer in contact with said photoconductive layer; a second transparent electrode having a conducting surface in contact with said second viscous layer; means connected with said electrodes for applying a voltage thereto, for establishing a current flow through said series connected elements to effect an initial visible glow on said electroluminescent layer with predetermined minimum illumination in said photoconductive layer without the transmission of incident light thereon.

Claim 14

A light-translating system, having the capability to show differentiation between intensities of light and to show fluctuation in light intensities, comprising in combination: a transparent electrode having a conducting surface, an electrically conducting transparent viscous layer in contact with said surface; an elongated slender metal, light-opaque rod having an electroluminescent layer on one end in contact with said viscous layer; a photoconductive layer on the opposite end of said rod, said rod comprising the sole support means for the electroluminescent and photoconductive films; a second electrically conducting transparent viscous layer in contact with said photoconductive layer; a second transparent electrode having a conducting surface in contact with said second viscous layer; means connected with said electrodes for applying a voltage thereto, for establishing a current flow through said series connected elements to effect an initial visible glow on said electroluminescent layer with predetermined minimum illumination in said photoconductive layer without the transmission of incident light thereon.