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3941474 |
Light-conducting glass structures
By heat treating a glass member containing at least one kind of cation to constitute a modifying oxide in contact with a source of another kind of cation to cause ion substitution, a...
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3936149 |
Non-homogeneous objective lens having an aperture diaphragm
A non-homogeneous objective lens having an aperture diaphragm is disclosed which can effectively obviate flare without giving any bad influence upon the field and which can improve picture image...
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3923486 |
Method of producing light-conducting glass structure
By heat treating a glass member containing at least one kind of cation to constitute a modifying oxide in contact with a source of another kind of cation to cause ion substitution, a...
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3916182 |
Periodic dielectric waveguide filter
An optical waveguide comprising either a substrate coated with a layer of optic material or a clad optic fiber. A periodic variation in the index of refraction of either: (1) the substrate and/or...
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3909110 |
Reduction of dispersion in a multimode fiber waveguide with core index fluctuations
Step index, multimode fiber waveguides are designed according to the disclosed invention with intentional fluctuations of the refractive index of the fiber core, with the aim of reducing dispersion...
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3904268 |
Optical waveguide having optimal index gradient
A graded-index optical waveguide for use in an optical communication system in which optical signals having a mean wavelength λ are propagated. The fiber comprises a core of radius a surrounded by...
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3894857 |
Process for exchanging alkali ions for thallium ions in a glass fiber
A novel laser comprises a fiber-like light transmission medium having a gradient in the refractive index which is greatest at its axis and gradually decreases toward the surface and which includes...
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3891302 |
Method of filtering modes in optical waveguides
Modes are filtered in an optical waveguide by selecting and providing a periodic variation, such as a surface corrugation or a refractive index variation, in a filter region in the waveguide. The...
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3887264 |
Optical fiber with asymmetric index profile
This application describes a graded-index optical fiber comprising a core having at least one planar surface that extends in a direction parallel to the direction of wave propagation. The...
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3884550 |
Germania containing optical waveguide
An optical waveguide having a cladding layer formed of high purity glass and a core of high purity germania containing glass having an index of refraction above that of the cladding layer, said...
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3877783 |
Gradient refractive index light-conducting glass structure
A light-conducting glass structure, the refractive index of which in each cross section perpendicular to the centre line or plane along which light is to advance of the structure decreases...
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3873339 |
Method of forming optical waveguide circuit path
A method of producing a planar optical waveguide circuit path by applying to at least a portion of a smooth surface of a glass substrate having a predetermined desired index of refraction a first...
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3859103 |
OPTICAL GLASS BODY HAVING A REFRACTIVE INDEX GRADIENT
An optical glass body comprising at its central axis 50 to 70 mol % of SiO 2 , 10 to 30 mol % of B 2 O, 1 to 25 mol % of Tl 2 O and R 2 O, the total proportion of Tl 2 O and R 2 O being 10 to...
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3856494 |
LIGHT-CONDUCTING GLASS STRUCTURES MADE BY VAPORIZATION
A glass body containing a dissolved vaporizable component is heated under conditions whereby some of this component can vaporize off from the surface of the glass body to cause the concentration of...
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3853384 |
OPTICAL TRANSMISSION LINE
Optical transmission line suitable for transmitting electromagnetic radiation within the visible spectrum and adjoining portions of the infrared and ultraviolet spectra consists of an alumina-doped...
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3843228 |
PRODUCTION OF LIGHT-CONDUCTING GLASS STRUCTURES WITH REFRACTIVE INDEX DISTRIBUTION
A contact surface of a glass body, along an axis of which light is to adve, containing at least one modifying oxide is caused to contact an agent having an affinity for the oxide sufficient to...
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3843229 |
OPTICAL WAVEGUIDE HAVING A GRADED REFRACTIVE INDEX CORE FORMED OF SILICON AND GERMANIUM
An optical waveguide having a refractive index which decreases radially outwards from a center core zone thereof and is composed of a mixture of 1 to 10 percent by weight germanium and silicon. A...
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3841731 |
IMPROVEMENTS IN OR RELATING TO LIQUID CORE DIELECTRIC WAVEGUIDES
The number of modes progagating as guided modes along a dielectric optical waveguide depends on the refractive index difference between core and cladding materials. By altering this difference the...
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3838905 |
LIGHT-CONDUCTING STRUCTURES AND PRODUCTION THEREOF
Light-conducting structures each having a gradual refractive index gradient in a direction transverse to the direction in which light is to advance in the structure, which structure is made of a...
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3836347 |
CONTINUOUS PRODUCTION OF LIGHT-CONDUCTING GLASS FILAMENTS WITH REFRACTIVE INDEX GRADIENT
An electric current is passed by means of electrode means through a body of molten glass which is maintained at a temperature above its softening point and is flowing in contact with the electrode...
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3832028 |
COUPLER FOR OPTICAL WAVEGUIDE LIGHT SOURCE
A light coupler for transferring optical wave energy to or from light transmitting means including at least one optical waveguide. The coupler comprises a tapered core of transparent material of...
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3830640 |
PRODUCTION OF LIGHT-CONDUCTING GLASS STRUCTURES WITH INDEX GRADIENT
A light-conducting glass rod is passed continuously through a furnace when it is heated to a temperature above its softening point and is stretched into a thin filament. The rod has a refractive...
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3827785 |
GLASS LENS HAVING REDUCED CHROMATIC ABERRATION AND REFRACTIVE INDEX GRADIENT
A glass lens having a reduced chromatic aberration and a refractive index gradient such that its refractive index is expressed by the following equation N = No (1 - ar 2 ) Wherein N is the...
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3826560 |
METHOD OF FORMING A LIGHT FOCUSING FIBER WAVEGUIDE
A method of forming an article such as a light focusing fiber waveguide by applying to a substantially cylindrical starting member a layer of soot having a radially varying composition by means of...
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3825318 |
WAVEGUIDE COUPLER HAVING TRANSPARENT STRATIFIED STRUCTURE WITH PARALLEL FACES
An optical structure with parallel faces, has a refractive index decreasing continuously from one face to the other. The structure is produced by reactive cathode sputtering of tantalum in the...
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3823997 |
GRADED-INDEX OPTICAL FIBER
It is shown that minimum delay distortion is realized in a graded-index multimode optical fiber comprising an inner core of radius a surrounded by a suitable cladding when the refractive index...
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3816160 |
METHOD OF MAKING A PLASTIC OPTICAL ELEMENT
The invention relates to a transparent element for the deflection of incident electromagnetic radiation having an optical axis extending therethrough. The element includes a shaped polymeric matrix...
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3806224 |
OPTICAL TRANSMISSION LINE
Optical transmission lines suitable for transmitting electromagnetic radiation within the visible spectrum and adjoining portions of the infrared and ultraviolet spectra consists of a pure...
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3801181 |
GRADIENT INDEX LIGHT CONDUCTOR
Novel optical lens elements are disclosed, each of said elements consisting of a transparent body having two end surfaces crossing its center axis and having a refractive index distribution capable...
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3791806 |
CONTINUOUS PRODUCTION OF LIGHT-CONDUCTING GLASS FIBERS WITH ION DIFFUSION
In a process for continuously producing a light conducting glass fiber whin the refractive index in a plane perpendicular to the optical axis of the glass fiber is so distributed that it...
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3785718 |
LOW DISPERSION OPTICAL FIBER
The faster propagating, higher order modes are selectively removed from a multimode optical fiber by either attenuating said modes or by coupling the modes out of the fiber core and into the...
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3756688 |
METALLIZED COUPLER FOR OPTICAL WAVEGUIDE LIGHT SOURCE
A light coupler for transferring optical wave energy to or from light transmitting means including at least one optical waveguide. The coupler comprises a tapered core of transparent material of...
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3753607 |
OPTICAL IMAGE TRANSMITTING STRUCTURE
An optical image transmitting device capable of transmitting an image of an object to a plurality of locations comprises a plurality of optical fibers which are bundled together at their one ends...
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3737236 |
MAGNETOOPTIC READOUT SYSTEM UTILIZING OPTICAL WAVEGUIDE FIBERS
Optical waveguide fibers are utilized in a magnetooptic readout system for magnetic disk file applications to maintain high resolution capabilities of plane polarized light beams. In one type of...
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3658407 |
IMAGE TRANSMITTER FORMED OF A PLURALITY OF GRADED INDEX FIBERS IN BUNDLED CONFIGURATION
Optical device for transmitting an image wherein a number of optical fibers are disposed in such a manner that they are arranged neatly in the same relative position among them, at least, both ends...
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3655259 |
STREOSCOPIC MICROSCOPE WITH GRADED INDEX FIBER OBJECTIVE LENSES
The disclosure relates to an optical image transmitting apparatus adapted for a viewfinder for observation of any object, wherein two systems of transparent structures are provided whose refractive...
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3650598 |
LIGHT-CONDUCTING GLASS STRUCTURE HAVING A PERIPHERAL LIGHT-ABSORBENT LAYER
A transparent glass body having a light-focusing effect and a refractive index decreasing progressively from its centerline outward and containing readily reducible metal oxides in at least the...
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3647277 |
INDUCTION HEATED OPTICAL GUIDE
The disclosed optical guiding system employs radial thermal gradients in a propagation medium which is a bulk solid dielectric having a positive temperature coefficient of index of refraction and...
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3646472 |
LASER STRUCTURES
Laser structures for generating and amplifying laser light, each such structure embodying an elongated core of solid laser material embedded within a cladding of solid light-transmitting material...
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3643097 |
OPTICAL FILTER FOR SUPPRESSING NOISE WHICH UTILIZES A GRADED OPTICAL FIBER AND MEANS FOR CONTROLLING TRANSVERSE POSITION OF IRIS
A noise suppression optical filter having practical utility in increasing the signal-to-noise ratio of a laser communication system. The filter comprises a converging light guide element having an...
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3639035 |
SYNTHETIC RESIN STRUCTURES FOR LIGHT CONDUCTION AND PRODUCTION THEREOF
A polymer in the form of a transparent bar or fiber having bridges due to ionic bonding of carboxylic groups and metals and having a compositional distribution wherein the concentrations of at...
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3614197 |
SOLID OPTICAL WAVE GUIDE HAVING A RADIALLY VARYING REFRACTIVE INDEX
An apparatus for transmitting high-speed modulated light includes a solid optical waveguide comprising a medium having a refractive index which progressively decreases in the radial direction...
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3610725 |
FLEXIBLE GAS LENS WAVEGUIDE
In an optical waveguiding system using thermal gas lenses, realignment of an undulating optical beam with the optical axis of the guide is achieved by bending the lenses along two mutually...
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3605013 |
CURRENT-MEASURING SYSTEM UTILIZING FARADAY EFFECT ELEMENT
A current-measuring system comprises a fiberlike light guide capable of causing the Faraday effect. The guide is adapted to be placed in proximity to a current-carrying conductor. Polarized light...
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3603666 |
LIGHT BEAM DEFLECTION CONTROL DEVICE WITH GRADIENT INDEX LIGHT GUIDE
A light beam deflection control device includes an elastic fibrous converging light guide having a refractive index greatest along the guide axis. The guide is disposed in a predetermined...
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3599114 |
LASER CONSTRUCTIONS
Laser construction employing an elongated core of preselected laser glass including erbium as an active ion therein and a cladding of selectively absorbing material including praseodymium in...
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3593026 |
LIGHT DEFLECTION COMPENSATION DEVICE UTILIZING AN OPTICAL FIBER HAVING A REFRACTIVE INDEX GRADIENT WHICH DECREASES RADIALLY
A light beam incident upon one end of a fibrous light guide of the type hng a refractive index gradient greatest at its axis and decreasing towards the surface, has its position and angle of...
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3571489 |
TRANSPARENT SUBSTRATE HAVING GRADED OPTICAL DENSITY CONDUCTORS THEREON
Electrical conductors in an array which are present in transparent insulating material such as glass and transparent plastic cause diffraction which interferes with viewing an image. By grading the...
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3533013 |
OPTICAL MASER HAVING MEANS FOR CONCENTRATING THE PUMPING LIGHT ENERGY IN THE CENTRAL PORTION THEREOF
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3441337 |
THERMAL GASEOUS WAVEGUIDE WITH GASCOOLING COMPARTMENTS LONGITUDINALLY DISTRIBUTED THEREALONG
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