Patents by Inventor Ariadne D. Tenner

Ariadne D. Tenner 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).

  • Lighting system for controlling the color temperature of artificial light under the influence of the daylight level
    Patent number: 5861717
    Abstract: A lighting system having at least one light source for supplying artificial light and a control unit for controlling the light source. The light source is of the type having an adjustable color temperature. The control unit is provided with a control signal form a signal from a signal generator. The signal generator is dependent on the mean daylight level. The control unit is arranged to adjust the color temperature of the light source in dependence on a predetermined relationship between the mean daylight level and the color temperature of the artificial light. The lighting system will provide artificial light which will when the daylight level, as measured on an office desk, increases from approximately 400 lux to approximately 800 lux, increase the color temperature from approximately 3300 K to approximately 4300 K.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: January 19, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Simon H. A. Begemann, Ariadne D. Tenner, Gerrit J. Van Den Beld
  • Lighting system for controlling the color temperature of artificial light under the influence of the daylight level
    Patent number: 5721471
    Abstract: A lighting system having at least one light source for supplying artificial light and a control unit for controlling the light source. The light source is of the type having an adjustable color temperature. The control unit is provided with a control signal from a signal generator. The signal generator is dependent on the mean daylight level. The control unit is arranged to adjust the color temperature of the light source in dependence on a predetermined relationship between the mean daylight level and the color temperature of the artificial light. The lighting system will provide artificial light which will when the daylight level, as measured on an office desk, increases from approximately 400 lux to approximately 800 lux, increase the color temperature from approximately 3300 K to approximately 4300 K.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: February 24, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Simon H. A. Begemann, Ariadne D. Tenner, Gerrit J. Van Den Beld
  • System to optimize artificial lighting levels with increasing daylight level
    Patent number: 5648656
    Abstract: An artificial lighting system comprises a daylight sensor for sensing a level of daylight, artificial light source means for providing a level of artificial light, daylight control means for control of the level of daylight and a controller for control of the level of artificial light dependent on the sensed level of daylight. The controller decreases the level of artificial light with increasing level of daylight when the sensed daylight level is below a threshold, and reduces the amount of daylight through control of the daylight control means when the sensed daylight level is above the threshold.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: July 15, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Simon H.A. Begemann, Gerrit J. Van Den Beld, Ariadne D. Tenner