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US4252408A Expired / Lapsed US ⏱️ 0.0 years remaining

Directionally solidified eutectic structure and method of forming the same

Assignee: University of California, San Diego
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Filing: 1979-03-09
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Granted: 1981-02-24
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Expires: 1999-03-09
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Abstract

Abstract A directionally solidified, optically conductive eutectic system and method of forming the same. A Type II eutectic which divides into fiber and matrix phases when directionally solidified consists of a fiber phase having a lesser molecular weight but higher refractive index than the matrix phase. The resulting fiber array is optically conductive, and may be used to advantage in applications such as CRT screens, waveguides, fiber optic image intensifiers, and lasers.

Inventors

  • 👤 James D. Parsons
  • 👤 Alfred S. Yue

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 03:33
CPC Classifications
C; C30; C30B; C30B21/00; C30B21/02

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 66 words
A directionally solidified, optically conductive eutectic system, comprising: a matrix material comprising a first component of a type II eutectic system, and a plurality of mutually spaced, optical fibers within said matrix material, said fibers being formed from a second material component of said type II eutectic system, said fiber material being characterized by a lesser molecular weight but greater refractive index than said matrix material.
Claim 2
Dependent Claim 66 words
A directionally solidified, optically conductive eutectic system, comprising: a matrix material comprising a first component of a type II eutectic system, and a plurality of mutually spaced, optical fibers within said matrix material, said fibers being formed from a second material component of said type II eutectic system, said fiber material being characterized by a lesser molecular weight but greater refractive index than said matrix material.
Claim 3
Dependent Claim 11 words
The system of claim 1, wherein said fibers are substantially colinear.
Claim 4
Dependent Claim 16 words
The system of claim 1, wherein said fibers are arranged substantially in a packed hexagonal array.
Claim 5
Dependent Claim 17 words
The system of claim 1, the diameter of said fibers being no greater than about 3 micrometers.
Claim 6
Dependent Claim 18 words
The system of claim 1, said matrix material comprising CaF 2 , and said fiber material comprising MgO.
Claim 7
Dependent Claim 16 words
The system of claim 1, said matrix material comprising KF, and said fiber material comprising LiF.
Claim 8
Dependent Claim 73 words
A fiber optic waveguide, comprising: an elongate, directionally solidified eutectic system extending generally along an axis, said system comprising a matrix and a plurality of optically conductive fibers disturbed within said matrix substantially colinear with the system axis, said matrix and fibers being formed respectively from materials comprising the components of a type II eutectic system, said fiber material being characterized by lesser molecular weight but greater refractive index than said matrix material.
Claim 9
Dependent Claim 73 words
A fiber optic waveguide, comprising: an elongate, directionally solidified eutectic system extending generally along an axis, said system comprising a matrix and a plurality of optically conductive fibers disturbed within said matrix substantially colinear with the system axis, said matrix and fibers being formed respectively from materials comprising the components of a type II eutectic system, said fiber material being characterized by lesser molecular weight but greater refractive index than said matrix material.
Claim 10
Dependent Claim 165 words
In a cathode ray tube having an electron beam source and means controlling the direction of a beam emitted by said source, the improvement comprising a high resolution screen adopted to be illuminated by said beam, said screen comprising: a fiber optic mosaic having a first surface facing the electron beam source and a second surface opposite said first surface forming a screen, said mosaic comprising a matrix and a plurality of optically conductive fibers distributed within and extending across said matrix from said first to said second surface, said matrix and fibers being formed respectively from materials comprising the components of a type II eutectic system, said fiber material being characterized by a lesser molecular weight but greater refractive index than said matrix material, said fibers being substantially colinear and of sufficient density to transmit a high resolution image, and a fluorescent coating over said first mosaic surface positioned to receive an electron beam, and in response thereto to emit light into said mosaic.
Claim 11
Dependent Claim 165 words
In a cathode ray tube having an electron beam source and means controlling the direction of a beam emitted by said source, the improvement comprising a high resolution screen adopted to be illuminated by said beam, said screen comprising: a fiber optic mosaic having a first surface facing the electron beam source and a second surface opposite said first surface forming a screen, said mosaic comprising a matrix and a plurality of optically conductive fibers distributed within and extending across said matrix from said first to said second surface, said matrix and fibers being formed respectively from materials comprising the components of a type II eutectic system, said fiber material being characterized by a lesser molecular weight but greater refractive index than said matrix material, said fibers being substantially colinear and of sufficient density to transmit a high resolution image, and a fluorescent coating over said first mosaic surface positioned to receive an electron beam, and in response thereto to emit light into said mosaic.
Claim 12
Dependent Claim 131 words
A high resolution video screen, comprising: a fiber optic mosaic having a pair of opposed surfaces, one of said surfaces forming a screen, and a flourescent coating over the other of said surfaces, said coating being adapted to emit light into said mosaic in response to its being illuminated by an electron beam; said mosaic comprising a matrix and a plurality of optically conductive fibers distributed within and extending across said matrix between said opposed surfaces, said matrix and fibers being formed respectively from materials comprising the components of a type II eutectic system, said fiber material being characterized by a lesser molecular weight but greater refractive index than said matrix material, said fibers being substantially colinear and of sufficient density to transmit a high resolution image to the screen surface.
Claim 13
Dependent Claim 131 words
A high resolution video screen, comprising: a fiber optic mosaic having a pair of opposed surfaces, one of said surfaces forming a screen, and a flourescent coating over the other of said surfaces, said coating being adapted to emit light into said mosaic in response to its being illuminated by an electron beam; said mosaic comprising a matrix and a plurality of optically conductive fibers distributed within and extending across said matrix between said opposed surfaces, said matrix and fibers being formed respectively from materials comprising the components of a type II eutectic system, said fiber material being characterized by a lesser molecular weight but greater refractive index than said matrix material, said fibers being substantially colinear and of sufficient density to transmit a high resolution image to the screen surface.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-02-24 1984-08-25 1985-02-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-02-24 1988-08-25 1989-02-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-02-24 1992-08-25 1993-02-24 $7700.00 Window Closed / Lapsed

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