Culham
Earl Alexander Culham, Edmonton CA
Patent application number | Description | Published |
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20100171862 | Parallax Camera and Display Screen - In the beginning, display screens were monochrome, and a video artist was limited to specifying the brightness of a pixel. With the advent of color display screens, the artist could specify the color and brightness of a pixel. With this invention, the artist can now additionally specify the direction from which that color and brightness can be seen. I anticipate a single pixel being capable of displaying different colors in different directions at the same time. This invention also describes a camera capable of capturing this directional information. | 07-08-2010 |
J. Richard Culham, Waterloo CA
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20110153242 | THERMOCOUPLE MEASUREMENT IN A CURRENT CARRYING PATH - A method of measuring a temperature of a wire and a current flowing through the wire with a thermocouple includes taking a first voltage reading from the thermocouple with the current at a first polarity, and taking a second voltage reading from the thermocouple with the current at a second polarity. The first voltage reading is averaged with the second voltage reading to obtain an average voltage reading, which is referenced to a correlation table to calculate the temperature of the wire. Half of a voltage difference between the first voltage reading and the second voltage reading is divided by the resistance in the wire to calculate the current flowing through the wire. | 06-23-2011 |
Louise Culham, Maple Valley, WA US
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20130253411 | PHOTODYNAMIC THERAPY LASER - A laser system including: a laser source operable to emit a first and a second laser beam having first and second operating wavelengths, respectively; a fiber optic cable to guide and homogenize the laser beams; an expander to increase the diameter of the laser beams; a cylinder to guide the laser beams and limit respective diameters of the first and second laser beams, wherein the cylinder is positioned after the expander on an optical path of the laser beam; a first optical system to collimate the laser beams, wherein the optical system is positioned after the cylinder on the optical path of the laser beams; a spot-size selector comprising a plurality of apertures, wherein the spot-size selector is positioned after the first optical system on the optical path of the laser beams; and a second optical system to focus the laser beams on a tissue of the patient. | 09-26-2013 |
Louise Ellen Culham, Auburn, WA US
Patent application number | Description | Published |
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20090303440 | DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION - A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used. | 12-10-2009 |
Louise Ellen Culham, Maple Valley, WA US
Patent application number | Description | Published |
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20130088683 | DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION - A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used. | 04-11-2013 |
20130192513 | DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION - A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used. | 08-01-2013 |
20130269592 | APPARATUS WITH TIMED COLOR CHANGE INDICATION - An apparatus with time controlled color change indication comprises an apparatus includes a disposable, limited or restricted use product and an oxygen sensing color changeable dye disposed on a portion of the apparatus, the dye being translucent or having a first color upon application and for a defined time thereafter and the dye changing color after exposure to oxygen for the defined time. For example, a packaging for containing a product for human consumption has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the product for human consumption should no longer be consume or has decreased in freshness, quality of taste or potency. | 10-17-2013 |
Louis Ellen Culham, Maple Valley, WA US
Patent application number | Description | Published |
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20150346172 | APPARATUS WITH TIMED COLOR CHANGE INDICATION - An apparatus with time controlled color change indication comprises an apparatus includes a disposable, limited or restricted use product and an oxygen sensing color changeable dye disposed on a portion of the apparatus, the dye being translucent or having a first color upon application and for a defined time thereafter and the dye changing color after exposure to oxygen for the defined time. For example, a packaging for containing a product for human consumption has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the product for human consumption should no longer be consume or has decreased in freshness, quality of taste or potency. | 12-03-2015 |