William Thornton6147 Christian St, Philadelphia, PA 19143

2004017, Sep 9, 2004

Feb 27, 2004

10/789584

William Thornton - Cranford NJ, US

G03C003/00

430/010000

Only recently the shapes and positions of the three spectral sensitivities, of the three input channels to the normal human visual system, have become known with adequate accuracy for commercial exploitation. It is now time, therefore, to design the lighting by which human observers and workers visually operate, so that a maximum of human good-seeing can result from a minimum of kilowatt-hours expended on the lighting. The method is to utilize, in the lighting, only the three spectral colors to which the visual system responds most strongly. The embodiment is a device which efficiently generates white light, using a three-component light-generating medium, the first component electrically energized to exhibit a green emission confined to the immediate wavelength neighborhood of 530 nm, the second an orange-red emission confined to the immediate wavelength neighborhood of 610 nm, and the third a blue-violet emission confined to the immediate wavelength neighborhood of 450 nm.

4431942, Feb 14, 1984

Nov 4, 1981

6/318230

William A. Thornton - Cranford NJ

North American Philips Electric Corp. - New York NY

H01J 162
H01J 6304

313487

Color-corrected HID mercury-vapor lamp provides good color rendition of illuminated objects and also has a commercially desirable emission color. The lamp incorporates the usual arc tube which emits both ultraviolet radiations and visible radiations and the color-correcting phosphor components are carried on the inner surface of an outer protective envelope and comprise three different phosphor components. A first of the phosphor components has an emission confined to the shorter wavelength region of the visible spectrum with a peak of emission at from 440 nm to 470 nm. A second of the phosphor components is confined to the middle wavelength region of the visible spectrum with a peak of emission at from 520 nm to 560 nm and the third of the phosphor components has an emission confined to the longer wavelength region of the spectrum with its peak of emission at from 605 nm to 630 nm. When the composite visible emissions from the arc tube and the phosphor components are combined, the emission color of the lamp at least approximates a cool-white color which is positioned at least proximate the black body line. Thus, the normal yellow-green emission of an uncorrected HPMV lamp is substantially color corrected in all respects.

4824246, Apr 25, 1989

Nov 23, 1987

7/124288

William A. Thornton - Cranford NJ

G01J 102

356243

Colored object which is to be illuminated by many different types of sources of illumination and which exhibits an improved constancy of color appearance upon change of illuminants. The radiation-absorbing exterior portion of the object has color-absorbing components which combine to exhibit reflectance bands peaking at about 450 nm in the blue-violet, about 530 nm in the green and about 610 nm in the orange-red. The reflectance bands are substantially confined to a radiation range of 50 nm to 60 nm as measured at one-half of the maximum measured reflectance of the bands. This range can be expanded to 40 nm to 80 nm with some sacrifice in performance. The relative proportions of each of the color-absorbing components are preselected to produce a desired composite color for the exterior portion of the object. There is also provided a method for making the exterior portion of the object.

4029983, Jun 14, 1977

Mar 25, 1976

5/670490

William A. Thornton - Cranford NJ

Westinghouse Electric Corporation - Pittsburgh PA

H01J 6118
H01J 6134
H01J 6144

313 25

The light output of a high-pressure metal-halide lamp that employs a sodium-scandium discharge and has an efficacy of approximately 90 lumens per watt is selectively modified by a luminescent coating on the inner surface of the outer envelope to provide color rendering and a source-color that are similar to those of an incandescent type lamp. The luminescent coating comprises a blend of two selected phosphor materials, one of which absorbs and is excited by blue-violet radiations produced by the arc discharge and emits in the green portion of the spectrum, and the other of which absorbs and is excited by the violet to yellow band of radiations produced by the arc discharge and emits in the red portion of the spectrum. The desired color rendering and reduction in the color temperature (from about 3600K to about 2800K) are achieved with a minimum drop in efficiency by using a luminescent coating consisting of approximately equal amounts (by weight) of green-emitting CaS:Ce phosphor and red-emitting CaS:Eu phosphor. Various other combinations of phosphors are also disclosed.

4584413, Apr 22, 1986

Sep 14, 1983

6/531979

William B. Thornton - Woodlyn PA
Alfred E. Borchert - Cherry Hill NJ

Atlantic Richfield Company - Los Angeles CA

C07C179025

568576

This invention relates to the purification of tertiary butyl hydroperoxide containing minor amounts of primary and secondary alkyl hydroperoxide contaminants obtained by the oxidation of isobutane by contacting the tertiary butyl hydroperoxide with at least about 2 milliequivalents per gram of total hydroperoxide present of a hydroxide or an oxide of an alkali metal or alkaline earth metal in aqueous solution and recovering the desired tertiary butyl hydroperoxide containing substantially reduced concentrations of primary and secondary alkyl hydroperoxide contaminants.

3963953, Jun 15, 1976

Apr 29, 1975

5/572815

William A. Thornton - Cranford NJ

Westinghouse Electric Corporation - Pittsburgh PA

H01J 6304

313487

A device to generate light of a quality which will accent the mismatch in color appearance of objects having different spectral reflectance curves but which appear at least generally similar in color and lightness under illumination by daylight. As there are many objects which match under one illuminant such as daylight, but do not match under other illuminants, there are many applications in which it is desirable to provide for early detection of potential mismatches. This invention generates visible radiation substantially confined to at least two of the 405-435 nm, 475-505 nm, 565-595 nm, and 645-675 nm wavelength ranges, and which preferably has less than 20 percent of the radiations in the 435-465 nm, 525-555 nm and 595-625 nm wavelength ranges.

4653925, Mar 31, 1987

Aug 23, 1985

6/768573

William A. Thornton - Cranford NJ

G01J 351

356419

Method and apparatus for rapidly measuring any of a large number of characteristics of lamplight. Apparatus extracts from the illumination being measured seven narrow visible bands and one wider band of ultraviolet. The measured power in each of the visible bands is multiplied by a weighting coefficient and the combination of the products provides a number which is indicative of the lamplight characteristic being measured. The measured power in the ultraviolet band is separately weighted from the measurements in the visible bands.

4826286, May 2, 1989

May 6, 1988

7/191971

William A. Thornton - Cranford NJ

G02B 528
G02B 110

350166

Filter system operates to provide reasonable seeability for human visual system while simultaneously limiting the total radiation energy impinging upon the eye. System comprises a transparent substrate which carries a plurality of thin layers having indices of refraction which alternately vary from a high index to a low index. Radiations passing the filter system are substantially confined to three bands centered at about 450 nm, 530 nm, and 610 nm with the width of the bands being from about 3 nm to about 50 nm as measured at one-half the maximum measured radiation transmission of each of the bands.