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Jacques P Govignon, 84100 Summer St UNIT 1-2, Watertown, MA 02472

Known as:
Jaques Govignon Jacques N
Related to:
Amanda M Krause 47 Barbara I Allen 76

Jacques Govignon Phones & Addresses

132 Antrim St #2, Cambridge, MA 02139    617-6615624   

132 Antrim St, Cambridge, MA 02139   

395 School St, Watertown, MA 02472   

100 Summer St, Watertown, MA 02472   

386 Commonwealth Ave, Boston, MA 02215   

Arlington, MA   

132 Antrim St APT 2, Cambridge, MA 02139   

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Mentions for Jacques P Govignon

Publications & IP owners

Us Patents

Method And Apparatus For Stabilizing A Broadband Source

US Patent:
6744793, Jun 1, 2004
Filed:
Dec 14, 2001
Appl. No.:
10/017351
Inventors:
Richard E. Stoner - Framingham MA
Jacques P. Govignon - Watertown MA
William P. Kelleher - Acton MA
Stephen P. Smith - Medford MA
Reinhardt Leon Willig - Maynard MA
Assignee:
The Charles Stark Draper Laboratory, Inc. - Cambridge MA
International Classification:
H01S 313
US Classification:
372 32, 372 2902, 359110, 359187
Abstract:
The invention relates to a method and system for wavelength stabilization of a broadband optical source. The method and system are based on utilizing an optical power divider to generate two optical signals for each of the broadband source and a reference wavelength source. The difference in the power ratio of the two optical signals derived from the broadband source and the power ratio of the two optical signals derived from the reference wavelength source is determined. Because the power ratios are similarly affected by component aging and changes in environmental factors such as temperature and incident radiation, the difference in the power ratios can be used to adjust the wavelength of the broadband source so that its center wavelength is stabilized to the center wavelength of the reference source.

Reduced Glare Scanner

US Patent:
4135791, Jan 23, 1979
Filed:
May 18, 1977
Appl. No.:
5/797983
Inventors:
Jacques P. Govignon - Malden MA
Assignee:
Varian Associates, Inc. - Palo Alto CA
International Classification:
A61B 314
US Classification:
351 7
Abstract:
Method and apparatus for reduced glare observation of the eye fundus through optical lenses is accomplished by synchronized scanning illumination and observation of successive portions of the fundus. The scanning is conducted in rapid cycles to obtain continuous observation of the fundus and to provide for reduced glare photographs thereof.

Wide Angle Fundus Illumination And Photography Apparatus

US Patent:
4023189, May 10, 1977
Filed:
Mar 29, 1974
Appl. No.:
5/455975
Inventors:
Jacques P. Govignon - Malden MA
Assignee:
Varian Associates - Palo Alto CA
International Classification:
G03B 2900
US Classification:
354 62
Abstract:
A wide angle instrument for illuminating, observing and photographing the fundus of the eye is provided. The instrument has a focus tube containing spaced decollimating and objective lenses with an adjustable aperture diaphragm positioned therebetween, which tube projects a glare-reducing entrance pupil on the eye examined and maintains the position and size thereof while the instrument is being focused by moving the focus tube relative to the eye examined to focus on the fundus.

Reduced Glare Scanner

US Patent:
4026638, May 31, 1977
Filed:
Dec 2, 1974
Appl. No.:
5/528740
Inventors:
Jacques P. Govignon - Malden MA
Assignee:
Varian Associates - Palo Alto CA
International Classification:
A61B 314
US Classification:
351 7
Abstract:
Method and apparatus for reduced glare observation of the eye fundus through optical lenses is accomplished by synchronized scanning illumination and observation of successive portions of the fundus. The scanning is conducted in rapid cycles to obtain continuous observation of the fundus and to provide for reduced glare photographs thereof.

Possible Relatives

Jacques Johnson  Jacques Jones  Jacques M Joseph  Jacques H Stevens  Jacques M Lafortune  Jacques S Lake  Jacques J Lamothe  Jacques Lapointe  Jacques L Larose  Jacques A Larson 

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