Richard D Freeman

US Patent:

43342000, Jun 8, 1982

Filed:

May 1, 1980

Appl. No.:

6/145810

Inventors:

Richard R. Freeman - Middletown NJ
Jonathan C. White - Eatontown NJ

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

H01S 322

US Classification:

372 90

Abstract:

A laser apparatus for inverting a population in an atomic or molecular species is provided. Energy is stored in a first species and a laser induced collisional energy transfer from that first species to a selected dissociative molecular state of a second species causes an inversion of one of the constituents of the second species. This is represented, in one embodiment of the present invention which utilizes a second species comprising a diatomic molecule, by the reaction A*+BC+h. nu. fwdarw. A+(BC)*. fwdarw. A+B*+C, where A and A* are the ground and excited states of the first species respectively, denoted as the storage species, BC and (BC)* are the ground and excited states of the second species respectively, which comprises atoms B and C, and B* is the excited state of atom B, which excited state is inverted.

US Patent:

53853903, Jan 31, 1995

Filed:

Feb 9, 1994

Appl. No.:

8/194160

Inventors:

Jimmy Freeman - New York NY
Richard Freeman - New York NY
George Spector - New York NY

International Classification:

A47C 400

US Classification:

297380

Abstract:

A portable seat carrier is provided, which consists of a seat in which a person may sit upon. A backrest to support a back of the person, is hinged to the seat. A structure extends from the sides of the seat to removably connect to the backrest for supporting the backrest in an upright position. Components are for carrying the seat and the backrest. When the supporting structure is removed from and placed behind the backrest, the backrest can be folded backwards against the seat, to form a briefcase type configuration, allowing the carrying components to transport the briefcase type configuration to another location.

US Patent:

41662199, Aug 28, 1979

Filed:

May 19, 1978

Appl. No.:

5/907591

Inventors:

Christopher P. Ausschnitt - Holmdel NJ
Gary C. Bjorklund - Cranbury NJ
Richard R. Freeman - Red Bank NJ
Ralph H. Storz - Freehold NJ

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

B01D 5944
H01J 3934

US Classification:

250423P

Abstract:

Atoms of hydrogen or deuterium are fully ionized by a three-photon process which is enhanced by the two-photon 1S. fwdarw. 2S resonant transition. The resultant ions are detected with high efficiency to provide discrimination between small concentrations of atomic hydrogen and atomic deuterium in a vacuum or in the presence of a background gas. The use of two unequal photo energies to pump the two-photon resonance provides the capability of mapping the individual three dimensional distribution of the hydrogen or deuterium. The detection process is also appropriate to determining these data in dishcarge plasmas and flames.

US Patent:

43038409, Dec 1, 1981

Filed:

Oct 27, 1980

Appl. No.:

6/201145

Inventors:

John E. Bjorkholm - Holmdel NJ
Richard R. Freeman - Middletown NJ
Richard L. Panock - Ocean NJ
William E. Cooke - Los Angeles CA

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

H03F 700

US Classification:

307427

Abstract:

The present invention relates to an apparatus for providing second harmonic generation from a single beam in an isotropic medium. An isotropic medium having a two-photon transition between a first level and a second level with a quadrupole moment therebetween is exposed to a beam of laser radiation. The photons in the laser beam have an energy which is substantially equal to one-half the energy difference between the first and second levels.

US Patent:

41953380, Mar 25, 1980

Filed:

May 6, 1970

Appl. No.:

5/035025

Inventors:

Richard D. Freeman - Madison NJ

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

G06F 314
G03B 1500

US Classification:

364200

Abstract:

Apparatus and methods are disclosed for defining and controlling the relative positioning of symbols in a computer-based imaging system for generating images suitable for controlling a printing operation. Information describing the symbols is stored in a memory and is retrieved and the corresponding symbol relatively positioned on an imaging device in response to a control program and an input specification of the desired coincidence of "concatenation points" associated with each symbol.

US Patent:

43272886, Apr 27, 1982

Filed:

Sep 29, 1980

Appl. No.:

6/192343

Inventors:

Arthur Ashkin - Rumson NJ
John E. Bjorkholm - Holmdel NJ
Richard R. Freeman - Middletown NJ
David B. Pearson - Staten Island NY

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

H01S 100

US Classification:

250251

Abstract:

A cw laser beam of radiation superimposed upon a beam of particles, for example a beam of neutral particles, can cause substantial changes in particle trajectories when the radiation frequency is tuned near a resonant transition in the particle. The particles can be confined by, ejected from, or steered by the laser beam. The present invention teaches the range of values over which the frequency of electromagnetic radiation is to be offset from the frequency of a particle resonance, as a function of radiation power for specific wave propagation modes, to produce best focusing of the particle beam by a copropagating beam of electromagnetic radiation. Our invention takes into account the effect of random fluctuations which arise out of the quantum nature of the electromagnetic wave-particle interaction in order to determine the appropriate range of values.

Author:

Richard N. Freeman

ISBN #:

0075723301

Author:

Richard N. Freeman

ISBN #:

0075723352

Author:

Richard N. Freeman

ISBN #:

0075723328

Author:

Richard N. Freeman

ISBN #:

0075723336

Author:

Richard N. Freeman

ISBN #:

0075723344

Author:

Richard N. Freeman

ISBN #:

0075723360

Author:

Richard T. Freeman

ISBN #:

0122650506

Author:

Richard Freeman

ISBN #:

0226261646