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Shankar M V
Gopi Chandran Ramachandran, Mukunda Srinivas Adyam, Shankar Madras Venugopal, Anant Achyut Setlur, Alok Mani Srivastava, Holly Ann Comanzo, Venkatesan Manivannan, William Winder Beers: Phosphors containing oxides of alkaline-earth and group-13 metals, and light sources incorporating the same. General Electric Company, Fletcher Yoder, July 18, 2006: US07077980 (8 worldwide citation)

A phosphor comprises europium, at least two alkaline-earth metals, and at least a Group-13 metal. In one embodiment, the phosphor has a formula selected from the group consisting of Sr4-a-zAaEuzD12O22 and Sr4-a-zAaEuzD14O25; wherein A is at least an alkaline-earth metal other than strontium; D is an ...


2
Shankar M V
Dan Hancu, Mukunda Adyam, Emil Radkov, Prasanth Kumar, Anant Achyut Setlur, Alok Mani Srivastava, Holly Ann Comanzo, Gopi Chandran, Madras Venugopal Shankar: Phosphor and blends thereof for use in LEDs. Lumination, Fay Sharpe, March 10, 2009: US07501753 (4 worldwide citation)

Phosphor compositions having the formula EueMmAaGgQqNnXx, where M is at least one of Be, Mg, Ca, Sr, Ba, Cd, Sn, Pb or Zn; A is at least one of B, Al, Ga, In, Bi, Sc, Y, La or a rare earth element other than Eu; G is at least one of Si or Ge; Q is at least one of O, S, and Se; X is at least one of F ...


3
Shankar M V
Gopi Chandran Ramachandran, Alok Mani Srivastava, Timothy John Sommerer, Suchismita Sanyal, Prasanth Kumar Nammalwar, Holly Ann Comanzo, William Winder Beers, Madras Venugopal Shankar: Electrode materials for electric lamps and methods of manufacture thereof. General Electric Company, Mary Louise Gioeni, January 26, 2010: US07652415

An electron emissive material comprises an alkaline earth metal halide composition and operable to emit electrons on excitation. A lamp including an envelope, an electrode including an alkaline earth metal halide electron emissive material and a discharge material, is also disclosed.


4
Thomas Frederick Soules, William Winder Beers, Alok Mani Srivastava, Lionel Monty Levinson, Anil Raj Duggal: Light emitting device with phosphor composition. General Electric Company, Toan B Vo, Noreen C Johnson, June 26, 2001: US06252254 (363 worldwide citation)

The invention relates to a light source comprising a phosphor composition and a light emitting device such as an LED or a laser diode. The phosphor composition absorbs radiation having a first spectrum and emits radiation having a second spectrum and comprises at least one of: YBO


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Edward Brittain Stokes, Thomas Francis McNulty, Daniel Darcy Doxsee, Alok Mani Srivastava, Lionel Monty Levinson, Anil Raj Duggal: Solid state illumination system containing a light emitting diode, a light scattering material and a luminescent material. General Electric Company, Foley & Lardner, September 14, 2004: US06791259 (277 worldwide citation)

A lamp containing a radiation source, a luminescent material and a radiation scattering material located between the radiation source and the luminescent material is provided. The lamp may be a white emitting lamp. The radiation source may be a blue emitting LED. The luminescent material may be a ye ...


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Anant Achyut Setlur, Alok Mani Srivastava, Holly Ann Comanzo: Phosphor blends and backlight sources for liquid crystal displays. General Electric Company, Toan P Vo, Patrick K Patnode, October 26, 2004: US06809781 (185 worldwide citation)

A phosphor composition that comprises at least one phosphor emitting in each of the blue, green, and red regions of the visible spectrum is disposed adjacent to a backlight source of a color liquid crystal display. The phosphor composition emits strongly in the wavelength ranges of color filters use ...


8
Alok Mani Srivastava, Holly Ann Comanzo, Thomas Francis McNulty: White light emitting phosphor blends for LED devices. General Electric Company, Foley & Lardner, September 16, 2003: US06621211 (173 worldwide citation)

There is provided white light illumination system including a radiation source, a first luminescent material having a peak emission wavelength of about 575 to about 620 nm, a second luminescent material having a peak emission wavelength of about 495 to about 550 nm, which is different from the first ...


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Lionel Monty Levinson, Alok Mani Srivastava: LIGHT EMITTING DEVICE WITH BA2MGSI2O7:EU2+, BA2SIO4:EU2+, OR (SRXCAY BA1-X-Y)(A1ZGA1-Z)2SR:EU2+PHOSPHORS. General Electric Company, Toan P Vo, Noreen C Johnson, August 6, 2002: US06429583 (164 worldwide citation)

A lamp comprises a light emitting element such as a light emitting diode or a laser diode which emits blue light, and a phosphor composition which absorbs the blue light having a first spectrum from the light emitting element and emits light having a second spectrum. The phosphor composition compris ...