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Jonathan N Vanderwall, 832710 Macomb St NW, Washington, DC 20008

Known as:
Jonathan Vanderwall Jona Vanderwall Jonatha Vanderwall
Related to:
Dale Vanderwall

Jonathan Vanderwall Phones & Addresses

2710 Macomb St NW, Washington, DC 20008    202-6869151   

2710 Macomb St NW APT 309, Washington, DC 20008    202-6869151   

239 Derry Rd, Hershey, PA 17033    717-5339758   

860 Norman Dr, Lebanon, PA 17042   

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Publications & IP owners

Us Patents

Method And Apparatus For Reduction Of Modal Noise In Fiber Optic Systems

US Patent:
4357713, Nov 2, 1982
Filed:
Sep 12, 1979
Appl. No.:
6/074634
Inventors:
James C. Blackburn - Adelphi MD
Jonathan Vanderwall - Washington DC
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
H04B 900
US Classification:
455609
Abstract:
A dithering means is applied to a laser diode to provide dither modulation along with a signal input thereto. Modal noise, otherwise generated by the system, is reduced by the introduction of dither modulation.

Reflecting Aspheres Of Revolution For Forming Certain Beams

US Patent:
4643545, Feb 17, 1987
Filed:
May 22, 1986
Appl. No.:
6/873041
Inventors:
Jonathan Vanderwall - Washington DC
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
G02B 510
US Classification:
350618
Abstract:
A reflecting asphere of revolution for reflecting light radiation having a wavelength in the range from 0. 2 microns to 10 microns, emanating from or passing through a focus into an omnidirectional planar or conical fan beam of uniform thickness. The reflecting surface is generated by rotating an outer segment of a parabola about a line intersecting the parabola axis at its focus. In one application, this reflecting surface is used to equally disperse optical power emanating from the end face of an optical fiber to a plurality of solar cells. In another application, two of these reflecting aspheres of revolution are utilized to create an annular zone in a system for detecting objects, such as aircraft, entering the annular zone. Folding mirrors may be utilized to make systems using this reflecting asphere of revolution more compact. Also, truncated conical reflecting surfaces may be used with these reflecting aspheres of revolution to generate certain beams, such as annular cylindrical beams.

Possible Relatives

David G Vanderwall  Dani A Vanderwall  Daniel P Vanderwall  Dirk L Vanderwall  Dorothy P Vanderwall  Douglas J Vanderwall  Francis J Vanderwall  Jonathan L Johnson  Jonathan A Stancil  Jonathan Standridge 

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