Patents by Inventor Jason L. Posselt

Jason L. Posselt 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).

  • Performance and color consistent LED
    Patent number: 8096675
    Abstract: The instant invention discloses a device and method to mix and match LED die at a LED emitter or array level in an array to obtain a consistent average weighted wavelength, and/or desired flux, reducing the spread of a color range and therefore reducing the observed LED color range. The mixing of different wavelength and flux LED's expands the color gamut of the LEDs available to be used in a particular luminaire with a given color specification.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: January 17, 2012
    Assignee: Bridgelux Inc.
    Inventor: Jason L. Posselt
  • Light emitting devices with enhanced luminous efficiency
    Patent number: 6933535
    Abstract: A structure includes semiconductor light emitting device and a wavelength converting layer. The wavelength converting layer converts a portion of the light emitted from the semiconductor light emitting device. The dominant wavelength of the combined light from the semiconductor light emitting device and the wavelength converting layer is essentially the same as the wavelength of light emitted from the device. The wavelength converting layer may emit light having a spectral luminous efficacy greater than the spectral luminous efficacy of the light emitted from the device. Thus, the structure has a higher luminous efficiency than a device without a wavelength converting layer.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: August 23, 2005
    Assignee: Lumileds Lighting U.S., LLC
    Inventors: Daniel A. Steigerwald, William D. Collins III, Robert M. Fletcher, Michael J. Ludowise, Jason L. Posselt
  • High stability optical encapsulation and packaging for light-emitting diodes in the green, blue, and near UV range
    Patent number: 6590235
    Abstract: An LED component is provided, with light emission in the green-to-near UV wavelength range. The light-emitting semiconductor die is encapsulated with one or more silicone compounds, including a hard outer shell, an interior gel or resilient layer, or both. The silicone material is stable over temperature and humidity ranges, and over exposure to ambient UV radiation. As a consequence, the LED component has an advantageously long lifetime, in which it is free of “yellowing” attenuation which would reduce the green-to-near UV light output.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: July 8, 2003
    Assignee: Lumileds Lighting, U.S., LLC
    Inventors: Julian A. Carey, Williams David Collins, III, Jason L. Posselt
  • High stability optical encapsulation and packaging for light-emitting diodes in the green, blue, and near UV range
    Publication number: 20010010371
    Abstract: An LED component is provided, with light emission in the green-to-near UV wavelength range. The light-emitting semiconductor die is encapsulated with one or more silicone compounds, including a hard outer shell, an interior gel or resilient layer, or both. The silicone material is stable over temperature and humidity ranges, and over exposure to ambient UV radiation. As a consequence, the LED component has an advantageously long lifetime, in which it is free of “yellowing” attenuation which would reduce the green-to-near UV light output.
    Type: Application
    Filed: February 2, 2001
    Publication date: August 2, 2001
    Inventors: Julian A. Carey, Williams David Collins, Jason L. Posselt
  • High stability optical encapsulation and packaging for light-emitting diodes in the green, blue, and near UV range
    Patent number: 6204523
    Abstract: An LED component is provided, with light emission in the green-to-near UV wavelength range. The light-emitting semiconductor die is encapsulated with one or more silicone compounds, including a hard outer shell, an interior gel or resilient layer, or both. The silicone material is stable over temperature and humidity ranges, and over exposure to ambient UV radiation. As a consequence, the LED component has an advantageously long lifetime, in which it is free of “yellowing” attenuation which would reduce the green-to-near UV light output.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: March 20, 2001
    Assignee: Lumileds Lighting, U.S., LLC
    Inventors: Julian A. Carey, William David Collins, III, Jason L. Posselt