Patents by Inventor Bee Yin Chua

Bee Yin Chua 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).

  • Patent number: 8089083
    Abstract: Light emission from a light package, such as from an LED light package, is enhanced by a system and method for adjusting the refractive index at the surface of the encapsulating material surrounding the light source. The surface refractive index is changed to better match the index within the encapsulating material with the index of the media surrounding the encapsulating material. In one embodiment, the index is adjusted by roughing the surface of the encapsulating material. In another embodiment, a separate layer is created having a corrective index of refraction. The separate layer can comprise photonic crystals, if desired. In some embodiments the adjusting will achieve a graded index of refraction.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: January 3, 2012
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventor: Janet Bee Yin Chua
  • Patent number: 7922352
    Abstract: A device and method for emitting output light utilizes multiple light sources to produce original light having different peak wavelengths. A first light source of the device is configured to generate first light having a peak wavelength in the blue wavelength range, while a second light source of the device is configured to generate second light having a peak wavelength in the red wavelength range. Some of the original light emitted from at least the first light source is converted into light having a peak wavelength longer than the peak wavelength of the original light using a photoluminescent material to produce the output light.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: April 12, 2011
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Janet Bee Yin Chua, Yue Hoong Lau
  • Patent number: 7880381
    Abstract: A plurality of different frequency absorbing materials are placed between an LED and a surface so as to generate a non-monochromatic colors. In one embodiment, a light device is arranged with light sources, each of which emit light of a different color, and by surrounding the different colored light sources with a color changing media, each of which absorb light of different colors and by allowing the light sources to be individually calibrated as to power level, a variety of colors can be achieved.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: February 1, 2011
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Kheng Leng Tan, Janet Bee Yin Chua, Wei Liam Loo
  • Patent number: 7777355
    Abstract: Organometallic colloid(s) is dispersed in a polymer matrix to form an infrared-blocking encapsulant.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: August 17, 2010
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Janet Bee Yin Chua, Kean Loo Keh
  • Patent number: 7736020
    Abstract: An illumination device and method of making the device uses a three-dimensional (3D) substrate on which a number of light-emitting dies are mounted. The 3D substrate is configured to define an interior region. The illumination device includes electrical traces on at least one of the exterior surface and the interior surface of the 3D substrate.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: June 15, 2010
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Tajul Arosh Baroky, Janet Bee Yin Chua
  • Patent number: 7737634
    Abstract: A light emitting diode (“LED”) Device with Flexible Containment for Liquid Encapsulant is disclosed. The LED Device with Flexible Containment for Liquid Encapsulant includes an LED in a concave base housing, the LED having a p-doped semiconductor body and an n-doped semiconductor body. The device further includes a liquid containment chamber over the LED, configured to contain liquid encapsulant, and space permitting expansion and contraction of the liquid encapsulant in the chamber.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: June 15, 2010
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Margaret Tan Kheng Leng, Janet Bee Yin Chua
  • Patent number: 7708427
    Abstract: A light source device and method of making the device uses a substrate, which may be a glass or ceramic substrate, having thru-holes for heat dissipation. The light source device includes a number of light-emitting dies that are mounted on the substrate such that each thru-hole is positioned directly below one of the light-emitting dies.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: May 4, 2010
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Tajul Arosh Baroky, Janet Bee Yin Chua
  • Patent number: 7679672
    Abstract: An electronic flash, imaging device and method for producing a flash of light having a wavelength spectrum in the visible wavelength range and the infrared wavelength range uses a fluorescent material to convert at least some of the original light emitted from one or more light sources of the electronic flash to longer wavelength light to produce the flash of light. The light sources may be configured to generate light having a peak wavelength in an ultraviolet-and-visible wavelength range. The fluorescent material may include any combination of red, green, blue and yellow phosphors.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: March 16, 2010
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Janet Bee Yin Chua, Kok Chin Pan, Soo Ghee Lee
  • Patent number: 7667766
    Abstract: A light module associated with the camera provides flash light having a spectral content that is adjustable according to one or more drive signals. The light module includes one or more emitters of light of at least two different colors that are individually accessible to the one or more drive signals. The flash light is a mixture of the light from the one or more emitters.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: February 23, 2010
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Kian Shin Lee, Janet Bee Yin Chua, Yue Hoong Lau, Teoh Teh Seah, Joon Chok Lee
  • Patent number: 7609291
    Abstract: A device and method for producing an enhanced color image of a scene of interest captures a grayscale image of the scene of interest using a flash of infrared light and a color image of the scene of interest without using any flash of infrared light. The grayscale information from the grayscale image and the visible color information from the color image are combined to produce the enhanced color image.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: October 27, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Chin Hin Oon, Kean Loo Keh, Farn Hin Chen, Eit Thian Yap, Gim Eng Chew, Kee Yean Ng, Thye Linn Mok, Wool Kin Goon, Rene P. Helbing, Janet Bee Yin Chua
  • Patent number: 7562809
    Abstract: An article and a method for testing the assembly of that article are disclosed. The article includes a plurality of modules, at least two of the modules are capable of being placed in two different positions in the article, each module having a correct position in the article. Each module includes an aperture at a location determined by the desired position for that module in the article. The apertures are placed such that the apertures will be aligned to form a transparent channel when the modules are arranged in a predetermined pattern with respect to one another, but not when arranged in any of the possible incorrect orders. The article can be tested for assembly errors by transmitting a test light signal into the first end and testing for light that traversed all of said first transparent channel.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: July 21, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Janet Bee Yin Chua, Eit Thian Yap
  • Patent number: 7551848
    Abstract: A photographic light system, imaging device and method for providing different types of photographic light uses a single multifunctional light module to produce the different types of photographic light. The multifunctional light module includes a number of semiconductor light source devices, such as light emitting diodes (LED), which are controlled by a light module controller. The multifunctional light module can be used to produce an autofocus auxiliary light, a red-eye reducing light and a flash of light.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: June 23, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Kian Shin Lee, Janet Bee Yin Chua, Chi Yuen Marcus Wong
  • Patent number: 7535524
    Abstract: In one embodiment, apparatus is provided with a display panel, a wavelength converting material, and a light source. The display panel is provided with an interface to receive control signals defining one or more primary images that are projected from the display panel. The wavelength converting material absorbs light of a first wavelength and emits light of a second wavelength. The wavelength converting material defines a secondary image that is projected from the display panel when the wavelength converting material is illuminated by the light of the first wavelength. The light source causes the wavelength converting material to be illuminated by the light of the first wavelength.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: May 19, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Janet Bee Yin Chua, Yue Hoong Lau, Tah Wee Tee, Rene P. Helbing
  • Publication number: 20090122515
    Abstract: Light is emitted from a light emitting device. The light emitted from the light emitting device is combined with light from a first type of phosphor and a second type of phosphor. The first type of phosphor and the second type of phosphor are within an epoxy placed over the light emitting device. The first type of phosphor, when excited, emits light of a first color. The second type of phosphor, when excited, emits light of a second color. The first color and the second color are different.
    Type: Application
    Filed: January 4, 2009
    Publication date: May 14, 2009
    Inventors: Su Lin Oon, Janet Bee Yin Chua
  • Patent number: 7522211
    Abstract: A studio light having first and second light output regimes, and adjustable color temperature. The color temperatures of the first and second light output regimes may be different. The light module includes one or more emitters of light of at least two different colors. An external signal causes the light module to switch from a first light output regime to a second, higher intensity light output regime, and back to the first light output regime.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: April 21, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Kian Shin Lee, Janet Bee Yin Chua, Yue Hoong Lau, Teoh Teh Seah, Joon Chok Lee
  • Patent number: 7519287
    Abstract: An electronic flash, imaging device and method for producing flashes of light uses a diffractive optical element to produce a flash of light having a rectangular radiation pattern. The diffractive optical element is configured to diffract light emitted from a light source such that the radiation pattern of the light emitted from the diffractive optical element is rectangular to produce the rectangular flash of light.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: April 14, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte, Ltd.
    Inventors: Thye Linn Mok, Wooi Kin Goon, Gim Eng Chew, Kee Yean Ng, Janet Bee Yin Chua, Rene P. Helbing
  • Patent number: 7513669
    Abstract: An apparatus having a light source, light pipe, and light conversion layer is disclosed. The light source includes a plurality of LED dies arranged in an array, each LED emitting light having an excitation wavelength, the light source emitting light within a cone of angles. The light pipe is positioned to receive the light within the cone of angles through an edge surface such that the light within the predetermined cone of angles is totally reflected from the top surface. The light pipe has features that redirect some of the light at angles such that some of the redirected light exits through the top surface. The light conversion layer overlies the top surface and converts light of the excitation wavelength to light in an output spectrum having wavelengths different from the excitation wavelength. A display layer can be placed such that it is illuminated by light from the light pipe.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: April 7, 2009
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Janet Bee Yin Chua, Yue Hoong Lau
  • Patent number: 7495383
    Abstract: A phosphor composition and a light source constructed therefrom are disclosed. The phosphor composition includes first and second phosphors. The first phosphor includes first phosphor particles that convert light of an excitation wavelength to light having a first spectrum characterized by an intensity of light that varies as a function of wavelength. The first phosphor particles are chosen such that the first spectrum is independent of the size of the particles. The second phosphor includes particles of a QD phosphor that convert the excitation light to light in a QD phosphor spectrum. The first phosphor particles and the QD phosphor particles are present in a ratio of concentrations. The ratio, the first phosphor particles, and the QD phosphor particles are chosen such that a combined spectrum has an intensity that is more uniform as a function of wavelength than either the QD phosphor spectrum or the first spectrum.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: February 24, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Janet Bee Yin Chua, Yue Hoong Lau
  • Patent number: 7488990
    Abstract: Light is emitted from a light emitting device. The light emitted from the light emitting device is combined with light from a first type of phosphor and a second type of phosphor. The first type of phosphor and the second type of phosphor are within an epoxy placed over the light emitting device. The first type of phosphor, when excited, emits light of a first color. The second type of phosphor, when excited, emits light of a second color. The first color and the second color are different.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: February 10, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Su Lin Oon, Janet Bee Yin Chua
  • Patent number: 7481562
    Abstract: A device and method for providing illuminating light utilizes quantum dots to convert at least some of the original light emitted from a light source of the device to longer wavelength light to change the color characteristics of the illuminating light. The quantum dots may be included in the light source, a light panel and/or an optional interface medium of the device.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: January 27, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Janet Bee Yin Chua, Kok Chin Pan, Kee Yean Ng, Kheng Leng Tan, Tajul Arosh Baroky