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Luis Alvarez Ph.D.

Luis Alvarez Ph.D.

The Nobel Prize in Physics 1968

Award: "for his decisive contributions to elementary particle physics, in particular the discovery of a large number of resonance states, made possible through his development of the technique of using hydrogen bubble chamber and data analysis"

Patents

Publication:1/42
Publication No:US 4911541 A
Title:Inertial pendulum optical stabilizer
Publication Type:Grant
Publication Date:Mar 27, 1990
Filing Date:Apr 6, 1988
Inventors:Luis W. Alvarez, Stephen F. Sporer
Original Assignee:Schwem Technology Incorporated
Abstract:An inertial pendulum stabilizer is utilized for stabilizing the lens train of an optical instrument to be stabilized, such as a television camera, against accidental angular motion. A substantially spherical optical doublet having a leading negative lens element and a trailing positive element with both lens elements together being afocal is utilized. The leading negative lens element is fixed in front of the lens train of the optical instrument to be stabilized. An inertial pendulum has the positive optical element lens fixed to the front of the pendulum, this positive element being located between the leading negative lens and the lens train of the optical element to be stabilized. The inertial pendulum pivots on two intersecting and mutually perpendicular axes. The inertial pendulum is attached to the lens train to be stabilized so that the two mutually perpendicular and intersecting pivot axes intersect the lens train of the optical element to be stabilized. Consequently, this inertial pendulum defines an interior spatial interval exceeding the dimensions of the lens train of the optical instrument to be stabilized to enable pivot around the lens train with stabilizing excursion of the positive lens element. The inertial pendulum is counter-weighted so that the center of gravity of the pendulum is coincident to the point of intersection of the mutually perpendicular pivot axes of the pendulum. The pendulum is thus neutral to the ambient gravitational field but responsive to forces of its own inertia relative to the camera. The inertial pendulum is biased to a neutral position with respect to the lens train at low frequencies of angular motion and provided with suitable damping to minimize low frequency oscillation of the pendulum with respect to the optical train during panning of the instrument. An optical stabilizer with minimum increase in dimension relative to the optical train of the instrument to be stabilized results.
Representative Figure:No Figure
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Publication:2/42
Publication No:US 4756866 A
Title:Nitrogen detection
Publication Type:Grant
Publication Date:Jul 12, 1988
Filing Date:Oct 9, 1985
Inventors:Luis W. Alvarez
Original Assignee:Alvarez Luis W
Abstract:A method and apparatus for detecting concentrations of nitrogen between 20% and 30% by weight such as is common in explosives is disclosed. A microtron having an output electron beam at a level below 45 MeV is targeted onto atypically tungsten target to provide gamma radiation levels. Deflection magnets adjacent to the target deflect the electron beam of the microtron to cause it to scan. Articles placed on a container containing suspect nitrogen are systematically scanned and output gamma radiation of 511 keV detected from nitrogen. Nitrogen concentrations and consequently expected concealed explosives are easily mapped in two or three dimensions, quantitatively.
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Publication:3/42
Publication No:US 4615590 A
Title:Optically stabilized camera lens system
Publication Type:Grant
Publication Date:Oct 26, 1976
Filing Date:Jul 17, 1984
Inventors:Luis W. Alvarez, Arnold J. Schwemin
Original Assignee:Schwem Instruments
Abstract:An optically stabilized camera lens system includes an objective lens mounted to the lens case and an optical train defining an optical path between the objective lens and a camera image plane. The optical train includes first a Humphrey prism, second a light reversing, cube corner element, third a zoom lens. Provision is made for replacement of the cube corner with a prism and use of aparity inverting prism such as a Dove or preferably a Pechan to provide an alternate path. Roll stabilization is provided by coupling the Pechan, Dove or equivalent parity reversing prism to a gyroscope so the prism becomes aderotating prism. The derotating prism rotates about the optical path at half the speed the case rotates about the optical axis to produce roll stabilization preferred in camera and video applications. The Humphrey prism is inertially mounted to the case, using a stabilizer to compensate for small accidental tilt and pan motions of the case. The tilt and pan stabilizer includes a Cardan suspension assembly including a first gimbal mounted to the case, a second gimbal pivotally mounted to the first gimbal and a precessor biased rotor mounted to the second gimbal. A third gimbal is pivotally mounted to the second gimbal; the Humphrey prism is pivotally mounted to the third gimbal. The Cardan suspension assembly provides a gyroscopically stabilized mount for the third gimbal.
Representative Figure:No Figure
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Publication:4/42
Publication No:US 4480310 A
Title:Dead reckoning range finding device for cart
Publication Type:Grant
Publication Date:Oct 30, 1984
Filing Date:Jul 9, 1982
Inventors:Luis W. Alvarez
Original Assignee:Luis W. Alvarez
Abstract:No Abstract
Representative Figure:No Figure
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Publication:5/42
Publication No:US 4417788 A
Title:Stabilized zoom binocular
Publication Type:Grant
Publication Date:Nov 29, 1983
Filing Date:Sep 18, 1980
Inventors:Luis W. Alvarez, Arnold J. Schwemin
Original Assignee:Schwem Instruments
Abstract:A stabilized binocular using a gimbaled and stabilized triple-reflecting compensator (such as that in Humphrey U.S. Pat. No. 3,475,073) having three reflecting surfaces for each binocular path is disclosed. Each of the binocular paths is in convergent light from an objective to and through gimbaled stabilizer assembly to a primary focus that is stabilized with respect to the case. The triple-reflecting surfaces disposed to reflect light in the manner corresponding to a single plane mirror at an effective mirroring plane with a displacement between the incident and reflected light beams. The compensator remains stabilized with respect to inertial space, while the instrument undergoes accidental angular motion. The reflecting property of the compensator brings the image back to the same place on the case despite the accidental angular motion. The displacing function of the compensator enables the image to be displaced to a location where the image does not interfere with the incoming light path. This image is then processed by conventional field optics, including a zoom relay lens. Provision is made to adjustably compensate for displacement and resultant angular velocity, acceleration, and jerk. Resonance is naturally avoided as torquing forces are not applied where inertial centering of the compensator is sufficient.
Representative Figure:No Figure
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Publication:6/42
Publication No:US 4399455 A
Title:Television viewer
Publication Type:Grant
Publication Date:Aug 16, 1983
Filing Date:Jun 18, 1981
Inventors:Luis W. Alvarez
Original Assignee:Luis W. Alvarez
Abstract:A viewing system for use with a cathode ray tube display comprising an objective lens which focuses the display image onto a limited light diverging screen having orthogonally arranged lenticular lenses on its opposite planar surfaces and which diverts the projected light to produce an image of maximum brightness in a hypothetical ellipse having a major dimension of six inches and minor dimension of two inches at a viewing distance of sixteen inches.
Representative Figure:No Figure
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Publication:7/42
Publication No:US 4317119 A
Title:Stand alone collision avoidance system
Publication Type:Grant
Publication Date:Feb 23, 1982
Filing Date:Dec 12, 1979
Inventors:Luis W. Alvarez
Original Assignee:Luis W. Alvarez
Abstract:A stand alone collision avoidance system is disclosed for mounting to a large passenger jet especially to avoid the collision problem common to such large jets colliding with small propeller driven aircraft. A bistatic radar antenna system is disclosed having a frequency in the range of 40 Giga Hertz (hereafter GHz). Paired bistatic antennas are used with each couplet of bistatic transmitting and receiving antennas searching one quadrant of a total forward hemisphere of search in the direction of plane travel. Paired transmitter antennas, one for each quadrant, are typically located above and below the nose located weather radar and are mechanically scanned side to side in the typical "beaver tail" scan with the beaver tail occupying 100° of elevation and 0.71° of beam width. Paired receiving antennas, again one for each quadrant, are located with one such antenna on the leading edge of the vertical stabilizer or tail and the other antenna on a special mast lowered in a position where landing gear shadow does not obscure forward view. Each receiving antenna is mechanically scanned side to side synchronously with its transmitter antenna and consists of a phased array with a vertical scan generated from about 500 discrete linearly disposed receiving elements for vertical resolution of up to 0.21°. The antenna is responsive only to radar return signals approaching the antenna in a narrow vertical angular range, at some desired, and variable, vertical angle.
Representative Figure:No Figure
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Publication:8/42
Publication No:US 3988358 A
Title:Process for the preparation of aldehydes from organic halides
Publication Type:Grant
Publication Date:Oct 26, 1976
Filing Date:May 10, 1974
Inventors:Richard F. Heck
Original Assignee:University of Delaware
Abstract:Carboxylic acid esters or amides are obtained from aryl, heterocyclic, vinylic, ethynylic, and benzylic halides and substituted derivates thereof, by reacting same with an alcohol or primary or secondary amine and carbon monoxide, in the presence of a palladium catalyst and if necessary a tertiary amine at about 20.degree.-150.degree. C and from about a half to about 100 atmospheres pressure. A typical example is the conversion of bromobenzene into n-butyl benzoate at 100.degree. C and one atmosphere of carbon monoxide in the presence of tri-n-butyl-amine and a catalytic amount of PdBr.sub.2 [P(C.sub.6 H.sub.5).sub.3 ].sub.2.
Representative Figure:No Figure
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Publication:9/42
Publication No:US 4301468 A
Title:Color television viewer
Publication Type:Grant
Publication Date:Nov 17, 1981
Filing Date:Mar 10, 1980
Inventors:Luis W. Alvarez
Original Assignee:Luis W. Alvarez
Abstract:In this hand-held color television viewing device, differently colored, side-by-side rasters are produced on the screen of a cathode ray tube from standard color television signals by the use of three pairs of serial delay lines. One delay line of each pair stores a horizontal scan line of color video information for a single color signal while the other delay line of each pair, each in succession, outputs the previously stored line in one-third of a line scan period to the control element of the cathode ray tube. The three side-by-side rasters are then optically combined into a single, composite colored, greatly enlarged, virtual image of high brightness.
Representative Figure:No Figure
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Publication:10/42
Publication No:US 4251726 A
Title:Deuterium tagged articles such as explosives and method for detection thereof
Publication Type:Grant
Publication Date:Feb 17, 1981
Filing Date:Feb 26, 1979
Inventors:Luis W. Alvarez
Original Assignee:Luis W. Alvarez
Abstract:Deuterium tagging in an amount at least ten (10) times the natural abundance of the deuterium isotope occurrence is disclosed. A composition of matter, including the group consisting of hydrogen containing compounds having at least one atom which is not oxygen and at least about ten (10) times the naturally occurring deuterium is disclosed. Preferred use is set forth in tagging explosives. A method of detecting the tagged article, such as explosives concealed in airline luggage includes subjecting tagged compounds with energy quanta sufficient to carry out the reaction D→n+p-2.23 MeV and detecting the number of neutrons generated is disclosed where n is a neutron, p is a proton and 2.23 MeV is the threshold energy required for the reaction. The apparatus, including a conveyor and a vertically scanning shutter is disclosed in combination with a linear accelerator for generating the X-ray energy in the order of 4 MeV and a boron triflouride proportional counter for detecting neutrons. Specific limitations are disclosed which readily adapt the method of tagged article detection to tagged explosives in airline luggage.
Representative Figure:No Figure
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Publication:11/42
Publication No:US 3829536 A
Title:Method of forming an optical element of reduced thickness
Publication Type:Grant
Publication Date:Aug 13, 1974
Filing Date:Apr 30, 1973
Inventors:Luis W. Alvarez
Original Assignee:Humphrey Res Ass
Abstract:No Abstract
Representative Figure:No Figure
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Publication:12/42
Publication No:US 3827798 A
Title:Optical element of reduced thickness
Publication Type:Grant
Publication Date:Aug 6, 1974
Filing Date:Apr 30, 1973
Inventors:Luis W. Alvarez
Original Assignee:Optical Res & Dev Corp
Abstract:An optical element of reduced thickness is formed by a mosaic of discrete lens faces, the lens faces together deflecting light in a manner equivalent to a conventional optical element of much greater thickness. Process and apparatus for the production of the lens element is included.
Representative Figure:No Figure
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Publication:13/42
Publication No:US 3739455 A
Title:Method of making fresnelled optical element matrix
Publication Type:Grant
Publication Date:Jun 19, 1973
Filing Date:Apr 5, 1971
Inventors:Luis W. Alvarez
Original Assignee:Humphrey Res Ass
Abstract:A process for producing the matrix of a fresnelled optical element is disclosed. Discrete elongate elements are first aligned and held in side-by-side relation so that the element ends together can be formed to the shape of a continuous optical surface. Thereafter the elements are released and realigned, typically on a surface, to form the matrix of a fresnelled lens element. Techniques of changing the angular alignment of the discrete faces of the lens elements are described.
Representative Figure:No Figure
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Publication:14/42
Publication No:US 3659105 A
Title:Subatomic particle detector with liquid electron multiplication medium
Publication Type:Grant
Publication Date:Apr 25, 1972
Filing Date:Oct 21, 1970
Inventors:Luis W Alvarez, Stephen E Derenzo, Richard A Muller, Robert G Smits, Haim Zaklad
Original Assignee:Atomic Energy Commission
Abstract:A subatomic particle detector having a large number of equally spaced anode conductors arranged in a single plane opposite and parallel to a large cathode plate with the space between the anode conductors and cathode plate filled with liquid argon. A phototransistor is connected to each conductor for automatic readout of the detector by means of a  laser beam that is scanned over each phototransistor.
Representative Figure:No Figure
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Publication:15/42
Publication No:US 3507565 A
Title:Variable-power lens and system
Publication Type:Grant
Publication Date:Apr 21, 1970
Filing Date:Feb 21, 1967
Inventors:Luis W Alvarez, William E Humphrey
Original Assignee:Optical Res & Dev Corp
Abstract:No Abstract
Representative Figure:No Figure
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Publication:16/42
Publication No:US 3468596 A
Title:Stabilized zoom optical device
Publication Type:Grant
Publication Date:Sep 23, 1969
Filing Date:Jan 26, 1966
Inventors:Alvarez Luis W
Original Assignee:Optical Res & Dev Corp
Abstract:No Abstract
Representative Figure:No Figure
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Publication:17/42
Publication No:US 3434771 A
Title:Gyroscopic lens
Publication Type:Grant
Publication Date:Mar 25, 1969
Filing Date:May 11, 1966
Inventors:Alvarez Luis W
Original Assignee:Bell & Howell Co
Abstract:No Abstract
Representative Figure:No Figure
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Publication:18/42
Publication No:US 3378326 A
Title:Gyroscopically controlled accidental motion compensator for optical instruments
Publication Type:Grant
Publication Date:Apr 16, 1968
Filing Date:Sep 12, 1963
Inventors:Alvarez Luis W
Original Assignee:Bell & Howell Co
Abstract:No Abstract
Representative Figure:No Figure
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Publication:19/42
Publication No:US 3366794 A
Title:Scanning apparatus for aiding in the determination of point co-ordinates of paths of charged particles as recorded on photographic film
Publication Type:Grant
Publication Date:Jan 30, 1968
Filing Date:Jun 26, 1963
Inventors:Alvarez Luis W
Original Assignee:Atomic Energy Commission Usa
Abstract:No Abstract
Representative Figure:No Figure
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Publication:20/42
Publication No:US 3305294 A
Title:Two-element variable-power spherical lens
Publication Type:Grant
Publication Date:Feb 21, 1967
Filing Date:Dec 3, 1964
Inventors:Luis W Alvarez
Original Assignee:Optical Res & Dev Corp
Abstract:No Abstract
Representative Figure:No Figure
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Publication:21/42
Publication No:US 3299768 A
Title:Optical range finder with variableangle exponential prism
Publication Type:Grant
Publication Date:Jan 24, 1967
Filing Date:Aug 16, 1962
Inventors:Luis W Alvarez
Original Assignee:Optical Res & Dev Corp
Abstract:No Abstract
Representative Figure:No Figure
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Publication:22/42
Publication No:US 3114832 A
Title:Chi-ray spectroscopic system comprising plural sources, filters, fluorescent radiators, and comparative detectors
Publication Type:Grant
Publication Date:Dec 17, 1963
Filing Date:Jul 28, 1960
Inventors:Alvarez Luis W
Original Assignee:Radiation Counter Lab Inc
Abstract:No Abstract
Representative Figure:No Figure
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Publication:23/42
Publication No:US 2933442 A
Title:Electronuclear reactor
Publication Type:Grant
Publication Date:Apr 19, 1960
Filing Date:Jul 11, 1958
Inventors:Alvarez Luis W, Lawrence Ernest O, Mcmillan Edwin M
Original Assignee:Alvarez Luis W, Lawrence Ernest O, Mcmillan Edwin M
Abstract:No Abstract
Representative Figure:No Figure
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Publication:24/42
Publication No:US 2878411 A
Title:Color television display screen
Publication Type:Grant
Publication Date:Mar 17, 1959
Filing Date:Dec 29, 1955
Inventors:Alvarez Luis W
Original Assignee:Chromatic Television Lab Inc
Abstract:No Abstract
Representative Figure:No Figure
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Publication:25/42
Publication No:US 2825569 A
Title:Golf training device
Publication Type:Grant
Publication Date:Mar 4, 1958
Filing Date:Nov 2, 1953
Inventors:Luis W Alvarez
Original Assignee:Gaither And Company
Abstract:No Abstract
Representative Figure:No Figure
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Publication:26/42
Publication No:US 2804614 A
Title:Suppressed side-lobe radio receiving system
Publication Type:Grant
Publication Date:Aug 27, 1957
Filing Date:Feb 23, 1951
Inventors:Alvarez Luis W
Original Assignee:Alvarez Luis W
Abstract:No Abstract
Representative Figure:No Figure
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Publication:27/42
Publication No:US 2777083 A
Title:Electrode construction for cathoderay tubes
Publication Type:Grant
Publication Date:Jan 8, 1957
Filing Date:Apr 19, 1954
Inventors:Alvarez Luis W
Original Assignee:Chromatic Television Lab Inc
Abstract:No Abstract
Representative Figure:No Figure
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Publication:28/42
Publication No:US 2717960 A
Title:Coded pulse generating circuit
Publication Type:Grant
Publication Date:Sep 13, 1955
Filing Date:Sep 26, 1951
Inventors:Alvarez Luis W
Original Assignee:Alvarez Luis W
Abstract:No Abstract
Representative Figure:No Figure
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Publication:29/42
Publication No:US 2706793 A
Title:Vertical determination device
Publication Type:Grant
Publication Date:Apr 19, 1955
Filing Date:May 15, 1946
Inventors:Alvarez Luis W, Bruno Rossi, Chromey Frederick C
Original Assignee:Alvarez Luis W, Bruno Rossi, Chromey Frederick C
Abstract:No Abstract
Representative Figure:No Figure
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Radioactivity measurement
Publication:30/42
Publication No:US 2685027 A
Publication Type:Grant
Publication Date:Jul 27, 1954
Filing Date:Jul 11, 1946
Inventors:Alvarez Luis W
Original Assignee:Atomic Energy Commission
Abstract:No Abstract
Title:
Representative Figure:No Figure
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Publication:31/42
Publication No:US 2672567 A
Title:Thermionically emissive element
Publication Type:Grant
Publication Date:Mar 16, 1954
Filing Date:Nov 12, 1949
Inventors:Alvarez Luis W
Original Assignee:Rand Corp
Abstract:No Abstract
Representative Figure:No Figure
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Publication:32/42
Publication No:US 2668287 A
Title:Radio navigation system
Publication Type:Grant
Publication Date:Feb 2, 1954
Filing Date:Jun 18, 1948
Inventors:Luis W Alvarez
Original Assignee:Luis W Alvarez
Abstract:No Abstract
Representative Figure:No Figure
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Publication:33/42
Publication No:US 2626352 A
Title:Pulse discriminating circuit
Publication Type:Grant
Publication Date:Jan 20, 1953
Filing Date:Aug 15, 1949
Inventors:Alvarez Luis W
Original Assignee:Alvarez Luis W
Abstract:No Abstract
Representative Figure:No Figure
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Publication:34/42
Publication No:US 2605413 A
Title:Antenna system with variable directional characteristic
Publication Type:Grant
Publication Date:Jul 29, 1952
Filing Date:Nov 10, 1943
Inventors:Alvarez Luis W
Original Assignee:Alvarez Luis W
Abstract:No Abstract
Representative Figure:No Figure
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Publication:35/42
Publication No:US 2568265 A
Title:Radio beacon and system utilizing it
Publication Type:Applications
Publication Date:Sep 18, 1951
Filing Date:Mar 18, 1943
Inventors:Alvarez Luis W
Original Assignee:Alvarez Luis W
Abstract:No Abstract
Representative Figure:No Figure
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Publication:36/42
Publication No:US 2555101 A
Title:Aircraft control system
Publication Type:Grant
Publication Date:May 29, 1951
Filing Date:Feb 25, 1944
Inventors:Alvarez Luis W, Johnston Lawrence H
Original Assignee:Alvarez Luis W, Johnston Lawrence H
Abstract:No Abstract
Representative Figure:No Figure
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Publication:37/42
Publication No:US 2545595 A
Title:Linear accelerator
Publication Type:Grant
Publication Date:Mar 20, 1951
Filing Date:May 26, 1947
Inventors:Alvarez Luis W
Original Assignee:Alvarez Luis W
Abstract:No Abstract
Representative Figure:No Figure
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Publication:38/42
Publication No:US 2530418 A
Title:Radio-echo detection and location apparatus for approaching hostile craft
Publication Type:Grant
Publication Date:Nov 21, 1950
Filing Date:Dec 15, 1943
Inventors:Alvarez Luis W
Original Assignee:Alvarez Luis W
Abstract:No Abstract
Representative Figure:No Figure
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Publication:39/42
Publication No:US 2527474 A
Title:Radio beacon and discriminating circuit therefor
Publication Type:Grant
Publication Date:Oct 24, 1950
Filing Date:Oct 14, 1943
Inventors:Alvarez Luis W
Original Assignee:Alvarez Luis W
Abstract:No Abstract
Representative Figure:No Figure
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Publication:40/42
Publication No:US 2514436 A
Title:Airway monitoring and control system
Publication Type:Applications
Publication Date:Jul 11, 1950
Filing Date:Jun 18, 1948
Inventors:Luis W Alvarez
Original Assignee:Luis W Alvarez
Abstract:No Abstract
Representative Figure:No Figure
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Publication:41/42
Publication No:US 2480208 A
Title:Radio distance and direction indicator
Publication Type:Grant
Publication Date:Aug 30, 1949
Filing Date:Jun 27, 1944
Inventors:Alvarez Luis W
Original Assignee:Us Sec War
Abstract:No Abstract
Representative Figure:No Figure
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Publication:42/42
Publication No:US 2479195 A
Title:Communication system
Publication Type:Grant
Publication Date:Apr 7, 1945
Filing Date:Apr 7, 1945
Inventors:Luis W Alvarez
Original Assignee:Luis W Alvarez
Abstract:No Abstract
Representative Figure:No Figure
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Alvarez
Photo: Jose Mercado/Stanford News Service/Wikipedia

Name: Luis Walter Alvarez
Birth: 13 June 1911, San Francisco, CA, USA
Death: 1 September 1988, Berkeley, CA, USA
Institution: University of California, Berkeley, CA, USA
Award: "for his decisive contributions to elementary particle physics, in particular the discovery of a large number of resonance states, made possible through his development of the technique of using hydrogen bubble chamber and data analysis"
Subject: particle physics
Portion of Cash: 1/1
Biography
Patents