DONALD J. WILLIAMS, M.D.
Medical Practice in San Diego, CA

6485150, Nov 26, 2002

Jul 3, 2001

09/898778

Ronald G. Driggers - Davidsonville MD
Donald N. Williams - San Diego CA
Charles S. Bendall - El Cajon CA

The United States of America as represented by the Secretary of the Navy - Washington DC

G02B 504

359615, 359361, 359566, 359831

A tunable spectral source includes an enclosure having first and second apertures; an optical dispersive element positioned in the enclosure; and multiple pixel source elements that are individually controllable for selectively directing one or more broadband light signals through the first aperture to irradiate the optical dispersive element. Each of the broadband light signals irradiates the optical dispersive element at a unique angle of incidence. The optical dispersive element disperses the broadband light signals into spectral component signals at dispersion angles that are dependent upon the angle of incidence of each broadband light signal that irradiates the optical dispersive element. The portions of the spectral component signals that are emitted through the second aperture are determined by selecting one or more particular pixel source elements to irradiate the optical dispersive element.

3952290, Apr 20, 1976

Nov 11, 1974

5/522808

Donald N. Williams - San Diego CA

The United States of America as represented by the Secretary of the Navy - Washington DC

G11C 1142, G11C 1304

340173LM

An improved read-only optical memory system is provided comprising a mask ving a plurality of discrete increments of recorded information defined by variations in opacity and a suitable light source positioned to illuminate the mask so that the mask transmits recorded information in the form of light energy in accordance with the opacity of the illuminated discrete increments. A multiple element photo responsive charge coupled device is positioned to receive the light energy transmitted by the illuminated mask and has its elements arrayed for developing a charge at each element position commensurate with the photo energy transmitted by an optically aligned discrete increment of the mask. Accordingly, the charges of the multiple elements are representative of the recorded information defined by variations in opacity of the mask and means for transferring the charges out of the charge coupled device is provided such as appropriate control logic and/or clocking pulses producing electrical signals from the individual discrete charges of each element in the charge coupled device which are representative of the recorded information. The mask is adapted to be replaceable providing access to as much additional recorded information as may be desired.

3981592, Sep 21, 1976

Mar 31, 1975

5/563751

Donald N. Williams - San Diego CA

The United States of America as represented by the Secretary of the Navy - Washington DC

G01N 2116, G01C 308

356237

A system for locating breaks in fiber optic filaments employs light energy ulses which are controlled to be emitted at determinable times and directed along the light path of the fiber optic filaments under test. A pulse detector is positioned to receive any reflected pulse light energy from the fiber optic filaments and an indicator is responsive for indicating the elapsed time between the emission of the pulses and the reception of the reflected pulse light energy, preferably calibrated in terms of distance to establish the location of breaks in the fiber optics line.