Patents by Inventor Mohiuddin Mala
Mohiuddin Mala 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).
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Patent number: 11313996Abstract: A light emitting diode (LED) light source is disclosed. The LED light source comprises a lens structure that includes a hemispherical dome with a base. The LED light source comprises a cavity in the base. The cavity has an opening and a taper such that a cross-section area within the cavity is smaller than an area of the opening. The LED light source comprises a light emitting device comprising an LED die contacting the taper. The taper allows for easy insertion of the LED die into the lens structure. The taper serves to accurately align the LED die when the LED die is inserted.Type: GrantFiled: January 14, 2021Date of Patent: April 26, 2022Assignee: Lumileds LLCInventors: Walter Daeschner, Mikhail Fouksman, Mohiuddin Mala, Ashim Shatil Haque
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Publication number: 20210132263Abstract: A light emitting diode (LED) light source is disclosed. The LED light source comprises a lens structure that includes a hemispherical dome with a base. The LED light source comprises a cavity in the base. The cavity has an opening and a taper such that a cross-section area within the cavity is smaller than an area of the opening. The LED light source comprises a light emitting device comprising an LED die contacting the taper. The taper allows for easy insertion of the LED die into the lens structure. The taper serves to accurately align the LED die when the LED die is inserted.Type: ApplicationFiled: January 14, 2021Publication date: May 6, 2021Inventors: Walter Daeschner, Mikhail Fouksman, Mohiuddin Mala, Ashim Shatil Haque
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Patent number: 10895669Abstract: A light emitting diode (LED) light source is disclosed. The LED light source comprises a lens structure that includes a hemispherical dome with a base. The LED light source comprises a cavity in the base. The cavity has an opening and a taper such that a cross-section area within the cavity is smaller than an area of the opening. The LED light source comprises a light emitting device comprising an LED die contacting the taper. The taper allows for easy insertion of the LED die into the lens structure. The taper serves to accurately align the LED die when the LED die is inserted.Type: GrantFiled: September 16, 2019Date of Patent: January 19, 2021Assignee: Lumileds LLCInventors: Walter Daeschner, Mikhail Fouksman, Mohiuddin Mala, Ashim Shatil Haque
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Publication number: 20200116902Abstract: A light emitting diode (LED) light source is disclosed. The LED light source comprises a lens structure that includes a hemispherical dome with a base. The LED light source comprises a cavity in the base. The cavity has an opening and a taper such that a cross-section area within the cavity is smaller than an area of the opening. The LED light source comprises a light emitting device comprising an LED die contacting the taper. The taper allows for easy insertion of the LED die into the lens structure. The taper serves to accurately align the LED die when the LED die is inserted.Type: ApplicationFiled: September 16, 2019Publication date: April 16, 2020Applicant: Lumileds LLCInventors: Walter Daeschner, Mikhail Fouksman, Mohiuddin Mala, Ashim Shatil Haque
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Patent number: 10490719Abstract: Light emitting die (300) comprising a plurality of light emitting elements (310A, 310B), each having a pair of bond pads (N1,P1 and N2,P2), wherein at least two diagonally opposite bond pads of adjacent light emitting elements on a die have their facing corners truncated (330) to enable a direct diagonal coupling of a complementary pair of diagonally opposite bond pads when the die is monted on a substrate on which an interconnection pattern is formed. By enabling diagonal as well as lateral coupling of the bond pads of multiple light emitting elements of a die, the multiple light emitting elements may be arranged in a variety of series and/or parallel configurations, thereby facilitating the use of the same die at different nominal operating voltages with a single interconnect layer on the substrate upon which the die is mounted.Type: GrantFiled: October 19, 2016Date of Patent: November 26, 2019Assignee: Lumileds Holding B.V.Inventors: Wen Yu, Oleg B. Shchekin, Franklin Wall, Kuochou Tai, Mohiuddin Mala, Robert Zona, Jeffrey Kmetec, Alexander Nickel
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Patent number: 10416356Abstract: A lens structure is pre-formed with features that facilitate accurate alignment of a light emitting chip within the lens structure. To ease manufacturing, the features include tapered walls that allow for easy insertion of the light emitting chip into the lens structure, the taper serving to accurately align the light emitting chip when the chip is fully inserted. The taper may include linearly sloped or curved walls, including complex shapes. An adhesive may be used to secure the light emitting chip to the lens structure. The light emitting chips may be picked-and-placed into an array of lens structures, or picked-and-placed onto a substrate that may be overlaid by the array of lens structures.Type: GrantFiled: January 4, 2015Date of Patent: September 17, 2019Assignee: Lumileds, LLCInventors: Walter Daeschner, Mikhail Fouksman, Mohiuddin Mala, Ashim Shatil Haque
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Patent number: 10379263Abstract: A lens structure is pre-formed with features that facilitate accurate alignment of a light emitting chip within the lens structure. To ease manufacturing, the features include tapered walls that allow for easy insertion of the light emitting chip into the lens structure, the taper serving to accurately align the light emitting chip when the chip is fully inserted. The taper may include linearly sloped or curved walls, including complex shapes. An adhesive may be used to secure the light emitting chip to the lens structure. The light emitting chips may be picked-and-placed into an array of lens structures, or picked-and-placed onto a substrate that may be overlaid by the array of lens structures.Type: GrantFiled: January 4, 2015Date of Patent: August 13, 2019Assignee: Lumileds, LLCInventors: Walter Daeschner, Mikhail Fouksman, Mohiuddin Mala, Ashim Shatil Haque
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Patent number: 10355182Abstract: A lens is affixed over an LED die mounted on a substrate to encapsulate the LED die. The lens may have a top surface shaped as a dome or other shape to achieve the desired light pattern. The lens has a cavity for the LED die. A reflector pattern is molded into the bottom surface of the lens, such as one or more facet rings with an angled surface surrounding the LED die. The angled surface of the facet ring reflects the downward or shallow light emission from the LED die upward. A plurality of facet rings of different radii and heights may be formed in the bottom of the lens for shaping the light emission. Any suitable shape of facet may be used. The facet rings may be formed to cause the LED module to emit a narrow beam or other light emission patterns.Type: GrantFiled: March 6, 2014Date of Patent: July 16, 2019Assignee: LUMILEDS LLCInventors: Walter Daeschner, Frederic Stephane Diana, Mohiuddin Mala, Ashim Shatil Haque, Mark Melvin Butterworth
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Patent number: 10237980Abstract: A patterned conductive layer on a flexible substrate includes pads for mounting an array of LEDs, conductive strips, and conductive tabs that couple the conductive strips to the pads. The desired circuit configuration is created by removing select tabs by punching holes or otherwise piercing the flexible substrate at the location of the tabs. In some embodiments, the patterned conductive layer is arranged to permit each LED to be mounted in either of two mirrored orientations, and in some embodiments, the patterned conductive layer is arranged to permit a separation between LEDs that is not predefined by the pattern. In some embodiments, the unmodified patterned conductive layer is arranged to provide a parallel circuit configuration, and the modified patterned conductive layer is arranged to provide a series or series-parallel configuration.Type: GrantFiled: December 16, 2014Date of Patent: March 19, 2019Assignee: Lumileds LLCInventors: Frederic Stephane Diana, Patrick Allen Bournes, Walter Daeschner, Yong Seok Choi, Axel Mehnert, Mohiuddin Mala
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Publication number: 20180337315Abstract: Light emitting die (300) comprising a plurality of light emitting elements (310A, 310B), each having a pair of bond pads (N1,P1 and N2,P2), wherein at least two diagonally opposite bond pads of adjacent light emitting elements on a die have their facing corners truncated (330) to enable a direct diagonal coupling of a complementary pair of diagonally opposite bond pads when the die is monted on a substrate on which an interconnection pattern is formed. By enabling diagonal as well as lateral coupling of the bond pads of multiple light emitting elements of a die, the multiple light emitting elements may be arranged in a variety of series and/or parallel configurations, thereby facilitating the use of the same die at different nominal operating voltages with a single inter-connect layer on the substrate upon which the die is mounted.Type: ApplicationFiled: October 19, 2016Publication date: November 22, 2018Applicant: Lumileds Holding B.V.Inventors: Wen YU, Oleg B. SHCHEKIN, Franklin WALL, Kuochou TAI, Mohiuddin MALA, Robert ZONA, Jeffrey KMETEC, Alexander NICKEL
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Publication number: 20170006710Abstract: A patterned conductive layer on a flexible substrate includes pads for mounting an array of LEDs, conductive strips, and conductive tabs that couple the conductive strips to the pads. The desired circuit configuration is created by removing select tabs by punching holes or otherwise piercing the flexible substrate at the location of the tabs. In some embodiments, the patterned conductive layer is arranged to permit each LED to be mounted in either of two mirrored orientations, and in some embodiments, the patterned conductive layer is arranged to permit a separation between LEDs that is not predefined by the pattern. In some embodiments, the unmodified patterned conductive layer is arranged to provide a parallel circuit configuration, and the modified patterned conductive layer is arranged to provide a series or series-parallel configuration.Type: ApplicationFiled: December 16, 2014Publication date: January 5, 2017Inventors: Frederic Stephane Diana, Patrick Allen Bournes, Walter Daeschner, Yong Seok Choi, Axel Mehnert, Mohiuddin Mala
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Publication number: 20160341852Abstract: A lens structure is pre-formed with features that facilitate accurate alignment of a light emitting chip within the lens structure. To ease manufacturing, the features include tapered walls that allow for easy insertion of the light emitting chip into the lens structure, the taper serving to accurately align the light emitting chip when the chip is fully inserted. The taper may include linearly sloped or curved walls, including complex shapes. An adhesive may be used to secure the light emitting chip to the lens structure. The light emitting chips may be picked-and-placed into an array of lens structures, or picked-and-placed onto a substrate that may be overlaid by the array of lens structures.Type: ApplicationFiled: January 4, 2015Publication date: November 24, 2016Inventors: Walter Daeschner, Mikhail Fouksman, Mohiuddin Mala, Ashim Shatil Haque
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Publication number: 20160049561Abstract: A lens is affixed over an LED die mounted on a substrate to encapsulate the LED die. The lens may have a top surface shaped as a dome or other shape to achieve the desired light pattern. The lens has a cavity for the LED die. A reflector pattern is molded into the bottom surface of the lens, such as one or more facet rings with an angled surface surrounding the LED die. The angled surface of the facet ring reflects the downward or shallow light emission from the LED die upward. A plurality of facet rings of different radii and heights may be formed in the bottom of the lens for shaping the light emission. Any suitable shape of facet may be used. The facet rings may be formed to cause the LED module to emit a narrow beam or other light emission patterns.Type: ApplicationFiled: March 6, 2014Publication date: February 18, 2016Inventors: WALTER DAESCHNER, FREDERIC STEPHANE DIANA, MOHIUDDIN MALA, ASHIM SHATIL HAQUE, MARK MELVIN BUTTERWORTH
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Patent number: 7443569Abstract: The invention provides a micro-electro-mechanical-system (MEMS) mirror device, comprising: a mirror having a 2-dimensional rotational T-shaped hinge at a first end, and having a flexible connection at a second end opposite the first end. The invention also provides a MEMS mirror device, comprising: a mirror having a 2-dimensional rotational T-shaped hinge at a first end; and a vertical actuator connected to the 2-dimensional T-shaped hinge through a rigid connection. The invention also provides a MEMS mirror device, comprising: a mirror connected to a first end of a rotational actuator through bending springs at a first end, and having a torsional spring at a second end opposite the first end; a movable cantilever connected to the mirror through the torsional spring; and a support structure connected to the first end and a second end of the rotational actuator through torsional springs and connected to the movable cantilever.Type: GrantFiled: August 17, 2006Date of Patent: October 28, 2008Assignee: JDS Uniphase CorporationInventors: Mohiuddin Mala, Thomas Ducellier, Alan Hnatiw
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Patent number: 7432629Abstract: The present invention relates to an articulated micro-electro-mechanical (MEMS) device, which is constructed in such a way as to enable several of the devices to be closely packed together, i.e. high fill factor, for redirecting specific wavelengths of light from a dispersed optical signal to different output ports. The articulated MEMS device includes multiple pivotally connected sections that are pivotable about two perpendicular axes for limiting the amount of dynamic cross-talk as the device is rotated between different positions.Type: GrantFiled: February 15, 2006Date of Patent: October 7, 2008Assignee: JDS Uniphase CorporationInventors: Mohiuddin Mala, Barrie Keyworth, John Michael Miller, Thomas Ducellier, Graham McKinnon
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Patent number: 7302132Abstract: A micro-electro-mechanical (MEMs) mirror device for use in an optical switch is disclosed. A “piano”-style MEMs device includes an elongated platform pivotally mounted proximate the middle thereof by a torsional hinge. The middle portion of the platform and the torsional hinge have a combined width less than the width of the rest of the platform, whereby several of these “piano” MEMs devices can be positioned adjacent each other pivotally mounted about the same axis with only a relatively small air gap therebetween. In a preferred embodiment of the present invention specially designed for wavelength switching applications, a greater range of arcuate motion for a mirror mounted thereon is provided by enabling the platform to rotate about two perpendicular axes.Type: GrantFiled: May 11, 2006Date of Patent: November 27, 2007Assignee: JDS Uniphase Inc.Inventors: John Michael Miller, Yuan Ma, Barrie Keyworth, Mohiuddin Mala, Graham McKinnon
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Publication number: 20070058238Abstract: The invention provides a micro-electro-mechanical-system (MEMS) mirror device, comprising: a mirror having a 2-dimensional rotational T-shaped hinge at a first end, and having a flexible connection at a second end opposite the first end. The invention also provides a MEMS mirror device, comprising: a mirror having a 2-dimensional rotational T-shaped hinge at a first end; and a vertical actuator connected to the 2-dimensional T-shaped hinge through a rigid connection. The invention also provides a MEMS mirror device, comprising: a mirror connected to a first end of a rotational actuator through bending springs at a first end, and having a torsional spring at a second end opposite the first end; a movable cantilever connected to the mirror through the torsional spring; and a support structure connected to the first end and a second end of the rotational actuator through torsional springs and connected to the movable cantilever.Type: ApplicationFiled: August 17, 2006Publication date: March 15, 2007Inventors: Mohiuddin Mala, Thomas Ducellier, Alan Hnatiw
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Publication number: 20060222312Abstract: The present invention relates to an articulated micro-electro-mechanical (MEMS) device, which is constructed in such a way as to enable several of the devices to be closely packed together, i.e. high fill factor, for redirecting specific wavelengths of light from a dispersed optical signal to different output ports. The articulated MEMS device includes multiple pivotally connected sections that are pivotable about two perpendicular axes for limiting the amount of dynamic cross-talk as the device is rotated between different positions.Type: ApplicationFiled: February 15, 2006Publication date: October 5, 2006Inventors: Mohiuddin Mala, Barrie Keyworth, John Miller, Thomas Ducellier, Graham McKinnon
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Publication number: 20060210218Abstract: A micro-electro-mechanical (MEMs) mirror device for use in an optical switch is disclosed. A “piano”-style MEMs device includes an elongated platform pivotally mounted proximate the middle thereof by a torsional hinge. The middle portion of the platform and the torsional hinge have a combined width less than the width of the rest of the platform, whereby several of these “piano” MEMs devices can be positioned adjacent each other pivotally mounted about the same axis with only a relatively small air gap therebetween. In a preferred embodiment of the present invention specially designed for wavelength switching applications, a greater range of arcuate motion for a mirror mounted thereon is provided by enabling the platform to rotate about two perpendicular axes.Type: ApplicationFiled: May 11, 2006Publication date: September 21, 2006Inventors: John Miller, Yuan Ma, Barrie Keyworth, Mohiuddin Mala, Graham McKinnon
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Patent number: 7110635Abstract: A micro-electro-mechanical (MEMs) mirror device for use in an optical switch is disclosed. A “piano”-style MEMs device includes an elongated platform pivotally mounted proximate the middle thereof by a torsional hinge. The middle portion of the platform and the torsional hinge have a combined width less than the width of the rest of the platform, whereby several of these “piano” MEMs devices can be positioned adjacent each other pivotally mounted about the same axis with only a relatively small air gap therebetween. In a preferred embodiment of the present invention specially designed for wavelength switching applications, a greater range of arcuate motion for a mirror mounted thereon is provided by enabling the platform to rotate about two perpendicular axes.Type: GrantFiled: May 21, 2004Date of Patent: September 19, 2006Assignee: JDS Uniphase Inc.Inventors: John Michael Miller, Yuan Ma, Barrie Keyworth, Mohiuddin Mala, Graham McKinnon