Allan Lee Schweitzer

US Patent:

6862382, Mar 1, 2005

Filed:

May 14, 2001

Appl. No.:

09/853575

Inventors:

Ting Wang - Princeton NJ, US
Allan Schweitzer - San Mateo CA, US
Maximilan Ott - Pennington NJ, US

Assignee:

NEC Corporation - Tokyo

International Classification:

G02B006/00

US Classification:

385 31, 385 47, 385901

Abstract:

A luminescent material, such as phosphor, is radiated by energy propagated from the side of an optical fiber, causing the luminescent material to emit visible light The luminescent material can be of a coincidentally-excited type, requiring the absorption of two wavelengths of radiation to emit visible light. In such a case, two side-emitting optical fibers can be used, with each optical fiber providing one of the needed radiation wavelengths. One embodiment of the invention involves a matrix of optical fibers forming an optical display panel made using coincidentally-excited phosphors. Side-emitting optical fibers are used to simultaneously stimulate a phosphor pixel located between the two fibers, allowing matrix addressing of each pixel individually. The optical display panel is constructed of only optical components. Another embodiment involves an optical switch with coincidentally-excited luminescent material.

US Patent:

7574078, Aug 11, 2009

Filed:

Jun 17, 2004

Appl. No.:

10/870326

Inventors:

Jefferson L. Wagener - New Hope PA, US
Christopher S. Koeppen - New Hope PA, US
Allan Schweitzer - Plainsboro NJ, US
Thomas Andrew Strasser - Warren NJ, US

Assignee:

Meriton Networks US Inc. - Wilmington DE

International Classification:

G02B 6/26

US Classification:

385 17, 385 16

Abstract:

An optical switch is provided which includes a plurality of input/output ports for receiving one or more wavelength component(s) of an optical signal. The optical switch also includes an optical arrangement that directs the wavelength component to any given one of the plurality of input/output ports. The given input/output port may be selected from among any of the plurality of input/output ports. If the optical signal includes a plurality of wavelength components, the optical arrangement includes at least one wavelength selective element such as a thin film filter. The wavelength selective element selects one of the wavelength components from among the plurality of wavelength components. The optical arrangement also includes a plurality of optical elements each associated with one of the wavelength selective elements. Each of the optical elements direct the selected wavelength component, which is selected by its associated selective element, to a given one of the plurality of input/output ports independently of every other wavelength component. The optical elements may be tiltable retroreflective mirror assemblies.

US Patent:

20040189547, Sep 30, 2004

Filed:

Apr 9, 2004

Appl. No.:

10/820783

Inventors:

Ting Wang - Princeton NJ, US
Allan Schweitzer - San Mateo CA, US
Maximilian Ott - Pennington NJ, US

Assignee:

NEC CORPORATION

International Classification:

G09G003/20

US Classification:

345/044000

Abstract:

A luminescent material, such as phosphor, is radiated by energy propagated from the side of an optical fiber, causing the luminescent material to emit visible light. The luminescent material can be of a coincidentally-excited type, requiring the absorption of two wavelengths of radiation to emit visible light. In such a case, two side-emitting optical fibers can be used, with each optical fiber providing one of the needed radiation wavelengths. One embodiment of the invention involves a matrix of optical fibers forming an optical display panel made using coincidentally-excited phosphors. Side-emitting optical fibers are used to simultaneously stimulate a phosphor pixel located between the two fibers, allowing matrix addressing of each pixel individually. The optical display panel is constructed of only optical components. Another embodiment involves an optical switch with coincidentally-excited luminescent material. One radiation is provided by a side-emitting optical fiber. To activate the switch, a second radiation is provided by a laser diode.

US Patent:

20090297097, Dec 3, 2009

Filed:

Aug 11, 2009

Appl. No.:

12/539482

Inventors:

Jefferson L. Wagener - Morristown NJ, US
Christopher S. Koeppen - New Hope PA, US
Allan Schweitzer - Plainsboro NJ, US
Thomas Andrew Strasser - Warren NJ, US

Assignee:

MERITON NETWORKS US INC. - Wilmington DE

International Classification:

G02B 6/26

US Classification:

385 18

Abstract:

An optical switch is provided which includes a plurality of input/output ports for receiving one or more wavelength component(s) of an optical signal. The optical switch also includes an optical arrangement that directs the wavelength component to any given one of the plurality of input/output ports. The given input/output port may be selected from among any of the plurality of input/output ports. If the optical signal includes a plurality of wavelength components, the optical arrangement includes at least one wavelength selective element such as a thin film filter. The wavelength selective element selects one of the wavelength components from among the plurality of wavelength components. The optical arrangement also includes a plurality of optical elements each associated with one of the wavelength selective elements. Each of the optical elements direct the selected wavelength component, which is selected by its associated selective element, to a given one of the plurality of input/output ports independently of every other wavelength component. The optical elements may be tiltable retroreflective mirror assemblies.

US Patent:

58043730, Sep 8, 1998

Filed:

Mar 31, 1995

Appl. No.:

8/414398

Inventors:

Allan Lee Schweitzer - Plainsboro NJ
Warren D. Smith - Plainsboro NJ

Assignee:

NEC Research Institute, Inc. - Princeton NJ

International Classification:

C12Q 168

US Classification:

435 6

Abstract:

Single- or double-strand oligonucleotides are used to create a molecular automata. The preferred embodiment is a DNA Turing machine and a method of performing a transition in such a DNA Turing machine.

US Patent:

63079879, Oct 23, 2001

Filed:

Feb 8, 1999

Appl. No.:

9/246145

Inventors:

Ting Wang - Princeton NJ
Allan Schweitzer - San Mateo CA
Maximilan Ott - Pennington NJ

Assignee:

NEC Corporation - Tokyo

International Classification:

G02B 600

US Classification:

385 31

Abstract:

A luminescent material, such as phosphor, is radiated by energy propagated from the side of an optical fiber, causing the luminescent material to emit visible light. The luminescent material can be of a coincidentally-excited type, requiring the absorption of two wavelengths of radiation to emit visible light. In such a case, two side-emitting optical fibers can be used, with each optical fiber providing one of the needed radiation wavelengths. One embodiment of the invention involves a matrix of optical fibers forming an optical display panel made using coincidentally-excited phosphors. Side-emitting optical fibers are used to simultaneously stimulate a phosphor pixel located between the two fibers, allowing matrix addressing of each pixel individually. The optical display panel is constructed of only optical components. Another embodiment involves an optical switch with coincidentally-excited luminescent material.

US Patent:

60752408, Jun 13, 2000

Filed:

Jul 30, 1998

Appl. No.:

9/124832

Inventors:

Kojiro Watanabe - Cranbury NJ
Ting Wang - Princeton NJ
Ichiro Fujieda - Kanagawa, JP
Yao Li - Monmouth Jct. NJ
Allan Schweitzer - Plainsboro NJ

Assignee:

NEC USA, Inc. - Princeton NJ

International Classification:

H01J 314

US Classification:

250234

Abstract:

A hand-held optical scanner for reading color images formed on a document. The scanner head is all-optical and contains no electronics. Optical fiber bundles couple the scanner head to a remote opto-electronic module containing a linear or a 2D sensor array for converting optical signals, reflected from the document, to electrical signals for transmission to a computer display, etc. By using side coupling, the transmitted and reflected light for each pixel travels through the same optical fiber without the need for a beam splitter. The optical fibers are used for the functions of image scanning, position encoding, and signaling a computer which assigns each one of incoherently arranged optical fibers to one of the functions.