Patents by Inventor Preethi Dacha

Preethi Dacha 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: 11451013
    Abstract: A wide-angle illuminator module including a rigid support structure having a plurality of angled faces, a flexible circuit including one or more VCSEL arrays, each VCSEL array positioned over a face among the plurality of angled faces, each VCSEL array including a plurality of integrated microlenses with one microlens positioned over each VCSEL in the VCSEL array, and a driver circuit for providing electrical pulses to each VCSEL array, wherein the plurality of VCSEL arrays address illumination zones in a combined field of illumination. The support structure may also be a heatsink. The flexible circuit may be a single flexible circuit configured to be placed over the support structure or a plurality of flexible circuits, each including one VCSEL array.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: September 20, 2022
    Assignee: Lumentum Operations LLC
    Inventors: Preethi Dacha, David Podva, Mial E. Warren
  • Publication number: 20210367410
    Abstract: A wide-angle illuminator module including a rigid support structure having a plurality of angled faces, a flexible circuit including one or more VCSEL arrays, each VCSEL array positioned over a face among the plurality of angled faces, each VCSEL array including a plurality of integrated microlenses with one microlens positioned over each VCSEL in the VCSEL array, and a driver circuit for providing electrical pulses to each VCSEL array, wherein the plurality of VCSEL arrays address illumination zones in a combined field of illumination. The support structure may also be a heatsink. The flexible circuit may be a single flexible circuit configured to be placed over the support structure or a plurality of flexible circuits, each including one VCSEL array.
    Type: Application
    Filed: August 3, 2021
    Publication date: November 25, 2021
    Inventors: Preethi DACHA, David PODVA, Mial E. WARREN
  • Patent number: 11095365
    Abstract: A wide-angle illuminator module including a rigid support structure having a plurality of angled faces, a flexible circuit including one or more VCSEL arrays, each VCSEL array positioned over a face among the plurality of angled faces, each VCSEL array including a plurality of integrated microlenses with one microlens positioned over each VCSEL in the VCSEL array, and a driver circuit for providing electrical pulses to each VCSEL array, wherein the plurality of VCSEL arrays address illumination zones in a combined field of illumination. The support structure may also be a heatsink. The flexible circuit may be a single flexible circuit configured to be placed over the support structure or a plurality of flexible circuits, each including one VCSEL array.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: August 17, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Preethi Dacha, David Podva, Mial E. Warren
  • Patent number: 11022724
    Abstract: Systems, methods, and devices disclosed herein relate to optical assemblies for spatial multiplexing, multi-zone illumination, and optical assemblies. In embodiments, light source arrays are aligned with one or more micro-lens assemblies to generate a specific field of illumination. In embodiments, surface-emitting light sources may be light-emitting diodes and/or surface-emitting lasers. The micro-lens array may be aligned with the light source arrays, on-axis or off-axis to a principal axis of corresponding lenses such that the light sources may be expanded to a desired divergence and field of illumination. In embodiments, multiple light sources may be combined to increase power output for a specific area of the field of illumination, and light sources may be driven independently depending on intended illumination.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: June 1, 2021
    Assignee: Lumentum Operations LLC
    Inventors: Richard F. Carson, Preethi Dacha, Mial E. Warren
  • Publication number: 20200310005
    Abstract: Systems, methods, and devices disclosed herein relate to optical assemblies for spatial multiplexing, multi-zone illumination, and optical assemblies. In embodiments, light source arrays are aligned with one or more micro-lens assemblies to generate a specific field of illumination. In embodiments, surface-emitting light sources may be light-emitting diodes and/or surface-emitting lasers. The micro-lens array may be aligned with the light source arrays, on-axis or off-axis to a principal axis of corresponding lenses such that the light sources may be expanded to a desired divergence and field of illumination. In embodiments, multiple light sources may be combined to increase power output for a specific area of the field of illumination, and light sources may be driven independently depending on intended illumination.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Inventors: Richard F. Carson, Preethi Dacha, Mial E. Warren
  • Publication number: 20190268068
    Abstract: A wide-angle illuminator module including a rigid support structure having a plurality of angled faces, a flexible circuit including one or more VCSEL arrays, each VCSEL array positioned over a face among the plurality of angled faces, each VCSEL array including a plurality of integrated microlenses with one microlens positioned over each VCSEL in the VCSEL array, and a driver circuit for providing electrical pulses to each VCSEL array, wherein the plurality of VCSEL arrays address illumination zones in a combined field of illumination. The support structure may also be a heatsink. The flexible circuit may be a single flexible circuit configured to be placed over the support structure or a plurality of flexible circuits, each including one VCSEL array.
    Type: Application
    Filed: May 8, 2019
    Publication date: August 29, 2019
    Inventors: Preethi Dacha, David Podva, Mial E. Warren