Patents by Inventor Roy Kayser

Roy Kayser has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180064953
    Abstract: A phototherapy device includes a shell having an outer side, and an opposing inner side configured to face a treatment surface; a plurality of emitters of electromagnetic radiation that are supported by the shell and arranged to illuminate the treatment surface with the electromagnetic radiation; a holder that is connected to the shell; as well as a spacer having a head configured to adjustably connect to the holder, and a leg extending from the head and configured to abut the treatment surface for supporting the phototherapy device at an adjustable distance from the treatment surface.
    Type: Application
    Filed: March 18, 2016
    Publication date: March 8, 2018
    Inventors: John KENNEDY, Simon TREADWELL, Roy KAYSER
  • Patent number: 7835057
    Abstract: In a method of calibrating a light delivery device (10) having a solid state light source (12), for example comprising LEDs of an LED array, and an intensity control unit (16) comprising LED array driver and a dimmer module for generating a control signal for controlling at least the intensity of the light source, the light source is temporarily connected by a light guide (24; 24, 26) to a radiometer (38) for detecting irradiance of the delivered light. The light delivery device has a memory (30) for storing control signal parameters and associated radiance levels. The light delivery device is calibrated by adjusting the control signal parameters, e.g.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 16, 2010
    Assignee: EXFO Photonic Solutions Inc.
    Inventors: Roy Kayser, Yu Song, Mitchell Wade MacDonald
  • Publication number: 20080197300
    Abstract: In a method of calibrating a light delivery device (10) having a solid state light source (12), for example comprising LEDs of an LED array, and an intensity control unit (16) comprising LED array driver and a dimmer module for generating a control signal for controlling at least the intensity of the light source, the light source is temporarily connected by a light guide (24; 24, 26) to a radiometer (38) for detecting irradiance of the delivered light. The light delivery device has a memory (30) for storing control signal parameters and associated radiance levels. The light delivery device is calibrated by adjusting the control signal parameters, e.g.
    Type: Application
    Filed: February 25, 2008
    Publication date: August 21, 2008
    Inventors: Roy Kayser, Yu Song, Mitchell Wade Macdonald
  • Patent number: 7335901
    Abstract: A light delivery device (10) having a light source (12) and a variable aperture unit (18) is temporarily connected by a light guide (24; 24, 26) to a radiometer (38) for detecting irradiance of the delivered light. The light delivery device has a memory (30) for storing irradiance levels. The light delivery device is calibrated by adjusting the aperture to each of a series of predetermined settings, obtaining from the radiometer a corresponding series of delivered light irradiance levels measured thereby, storing the irradiance levels and aperture settings in memory, and applying a best fit algorithm to the irradiance measurements and aperture settings. Thereafter, a desired irradiance level can be set by selecting the best fit aperture setting. Output intensity levels may be measured at the same time as the irradiance levels and used to compensate for light source degradation when setting a desired irradiance level.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: February 26, 2008
    Assignee: EXFO Photonic Solutions Inc.
    Inventors: Roy Kayser, Graeme Rice, Xuming Zhang
  • Publication number: 20060139722
    Abstract: A light delivery device (10) having a light source (12) and a variable aperture unit (18) is temporarily connected by a light guide (24; 24, 26) to a radiometer (38) for detecting irradiance of the delivered light. The light delivery device has a memory (30) for storing irradiance levels. The light delivery device is calibrated by adjusting the aperture to each of a series of predetermined settings, obtaining from the radiometer a corresponding series of delivered light irradiance levels measured thereby, storing the irradiance levels and aperture settings in memory, and applying a best fit algorithm to the irradiance measurements and aperture settings. Thereafter, a desired irradiance level can be set by selecting the best fit aperture setting. Output intensity levels may be measured at the same time as the irradiance levels and used to compensate for light source degradation when setting a desired irradiance level.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 29, 2006
    Inventors: Roy Kayser, Graeme Rice, Xuming Zhang
  • Patent number: 6847170
    Abstract: A light source having a light generator, a sensor for sensing operational parameters of the light generator, and a light source data storage device integrated with the light generator and operatively coupled to the sensor, for storing operating data correlated to the operational parameters of the light emitter. The light source also typically has a light source housing, to which are mounted the light generator, the sensor and the light source data storage device.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: January 25, 2005
    Assignee: Exfo Photonic Solutions Inc.
    Inventor: Roy Kayser
  • Patent number: 6683421
    Abstract: A photocuring device and a method of photocuring using it. The device includes a housing and a light emitting semiconductor array mounted to the housing, capable of emitting light energy having a light output wavelength suitable for initiating a photoreaction. The device also has a power source for providing power to energize the array to emit light energy and a controller coupled to the power source for varying the power provided by the power source to the array.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: January 27, 2004
    Assignee: EXFO Photonic Solutions Inc.
    Inventors: John Kennedy, Jim Farrell, Manfred Hubert, Roy Kayser, Eduardo Ghelman
  • Patent number: 6515430
    Abstract: The invention relates to a power supply for an illumination system used to expose photo-initiated adhesives. The illumination system includes an arc lamp to provide light. As the lamp ages, its electrodes deteriorate, reducing the amount of light directed into a light guide and ultimately onto the adhesive. The power supply provides an increasing power input to the lamp to increase the light output of the lamp, countering this deterioration at least in part. The voltage and current drawn by the lamp are measured and a skewed control signal which magnifies the level is used to control the power input to the lamp.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: February 4, 2003
    Assignee: EXFO Photonic Solutions Inc.
    Inventor: Roy Kayser
  • Publication number: 20020135317
    Abstract: The invention relates to a power supply for an illumination system used to expose photo-initiated adhesives. The illumination system includes an arc lamp to provide light. As the lamp ages, its electrodes deteriorate, reducing the amount of light directed into a light guide and ultimately onto the adhesive. The power supply provides an increasing power input to the lamp to increase the light output of the lamp, countering this deterioration at least in part. The voltage and current drawn by the lamp are measured and a skewed control signal which magnifies the level is used to control the power input to the lamp.
    Type: Application
    Filed: February 1, 2001
    Publication date: September 26, 2002
    Inventor: Roy Kayser
  • Publication number: 20020114896
    Abstract: A method and system for curing reactive material. The system includes a generator capable of generating radiation, a power supply operatively coupled to the generator, and an emitter adapted to emit the generated radiation onto the material. The system also includes a temperature sensor capable of detecting the temperature of the material a controller adapted to control the power level of radiation emitted. The system also preferably includes a masking unit for shaping the emitted radiation to substantially match the profile dimensions of the reactive material. In one embodiment, the method includes the steps of generating radiation within the absorption spectrum of the reactive material; shaping the generated radiation to substantially match the dimensions of the reactive material; and emitting said shaped radiation onto the reactive material.
    Type: Application
    Filed: July 16, 2001
    Publication date: August 22, 2002
    Inventors: John Kennedy, John Kuta, Eduardo Ghelman, Roy Kayser, Chris Dimas, Manfred Hubert, Steve Martin
  • Publication number: 20020047546
    Abstract: A light source having a light generator, a sensor for sensing operational parameters of the light generator, and a light source data storage device integrated with the light generator and operatively coupled to the sensor, for storing operating data correlated to the operational parameters of the light emitter. The light source also typically has a light source housing, to which are mounted the light generator, the sensor and the light source data storage device.
    Type: Application
    Filed: November 13, 2001
    Publication date: April 25, 2002
    Inventor: Roy Kayser
  • Patent number: 6333602
    Abstract: A light source having a light generator, a sensor for sensing operational parameters of the light generator, and a light source data storage device integrated with the light generator and operatively coupled to the sensor, for storing operating data correlated to the operational parameters of the light emitter. The light source also typically has a light source housing, to which are mounted the light generator, the sensor and the light source data storage device.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: December 25, 2001
    Assignee: EXFO Photonic Solutions Inc.
    Inventor: Roy Kayser
  • Patent number: 5634711
    Abstract: A hand-held portable light emitting device is suitable for medical and industrial photocuring and phototherapy applications. The hand-held portable light emitting device has: (a) a portable housing having a front end and a rear end; (b) a semiconducting light emitter having a matrix of a plurality of light emitting diodes mounted at the front end of the housing to emit light energy suitable for initiating a photo-reaction; (c) a power supply connected to the light emitter to provide the electrical power for energizing the diodes to emit the light energy; (d) a controller connected to the light emitter and the power supply, to vary the level of the light energy; (e) a mount at the front end of the housing; and (f) an optical assembly mounted to the mount, to direct the light energy generated from the diodes to a photoreaction site near the optical assembly.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: June 3, 1997
    Inventors: John Kennedy, Roy Kayser