公开(公告)号：US12032270B2

公开(公告)日：2024-07-09

申请号：US17876656

申请日：2022-07-29

申请人： LUMINAR TECHNOLOGIES, INC.

发明人： Aditya Jain ,  Yueyang Chen

IPC分类号： G02F1/35 ,  G02B5/08 ,  G02F1/00

CPC分类号： G02F1/3546 ,  G02B5/0841 ,  G02F1/0063

摘要： A metasurface includes a plurality of Bragg mirrors, each having a defect cavity therein, arrayed in a grid. A heat source is provided for each of the plurality of Bragg mirrors. Each heat source is positioned to selectively modulate heat applied to its respective Bragg mirror and to impart a different phase shift via the applied heat from the heat source.

公开(公告)号：US11885986B2

公开(公告)日：2024-01-30

申请号：US16943927

申请日：2020-07-30

申请人： Luminar Technologies, Inc.

发明人： Aditya Jain ,  Zoran Jandric ,  Dan Mohr ,  Kevin A. Gomez ,  Krishnan Subramanian

IPC分类号： G02B5/00 ,  G02B1/00 ,  G02F1/313 ,  G02F1/29 ,  G02B6/122 ,  G02B27/00 ,  G01S7/481

CPC分类号： G02B5/008 ,  G01S7/481 ,  G01S7/4814 ,  G01S7/4817 ,  G02B1/002 ,  G02B1/007 ,  G02B6/1226 ,  G02B27/0087 ,  G02F1/292 ,  G02F1/3133 ,  G02F2202/30

摘要： An active metasurface that provides low-loss and high-bandwidth modulation control of light includes a number of cells arranged on a substrate. A controller dynamically alters a voltage differential supplied to the electrodes of each of the cells is adapted to alter refractive index of each of the high-index dielectric blocks in order to controllably steer light exiting the cell.

公开(公告)号：US11709318B1

公开(公告)日：2023-07-25

申请号：US17677790

申请日：2022-02-22

申请人： LUMINAR TECHNOLOGIES, INC.

发明人： Aditya Jain ,  Li-Yuan Chiang

IPC分类号： G02B6/12

CPC分类号： G02B6/12011 ,  G02B2006/12061

摘要： A waveguide grating antenna apparatus includes a substrate layer, an asymmetric waveguide array layer upon the substrate layer, and a waveguide grating array layer formed above the asymmetric waveguide array layer. The waveguide array layer is composed of two forms of waveguide structures arranged in parallel. Each waveguide of the first form extends continuously, has a first width, and is laterally separated from each adjacent waveguide of the first form by a gap distance. Each waveguide of the second form extends parallel to and between adjacent waveguides of the first form within the first gap distance and is narrower than each of the first width and the gap distance. Pairs of the second form are closer to lateral sides of a first alternating set of the first form. The waveguide grating is composed of adjacent, separated elements extending axially along each waveguide of the first form.

公开(公告)号：US11927777B2

公开(公告)日：2024-03-12

申请号：US16943927

申请日：2020-07-30

申请人： Luminar Technologies, Inc.

发明人： Aditya Jain ,  Zoran Jandric ,  Dan Mohr ,  Kevin A. Gomez ,  Krishnan Subramanian

IPC分类号： G02B5/00 ,  G01S7/481 ,  G02B1/00 ,  G02B6/122 ,  G02B27/00 ,  G02F1/29 ,  G02F1/313

CPC分类号： G02B5/008 ,  G01S7/481 ,  G01S7/4814 ,  G01S7/4817 ,  G02B1/002 ,  G02B1/007 ,  G02B6/1226 ,  G02B27/0087 ,  G02F1/292 ,  G02F1/3133 ,  G02F2202/30

摘要： An active metasurface that provides low-loss and high-bandwidth modulation control of light includes a number of cells arranged on a substrate. A controller dynamically alters a voltage differential supplied to the electrodes of each of the cells is adapted to alter refractive index of each of the high-index dielectric blocks in order to controllably steer light exiting the cell.