Search Results - john+howell

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Gravitational Camera
This technology describes how a gravimeter may be used as an gravitational imaging device. The pendulum gravimeter may include an interferometer, such as a Sagnac interferometer, to determine a displacement on the pendulum by way of a mirror attached to the pendulum. Scanning of the object may be performed in 1D, 2D, or 3D, and may result in an image...
Published: 11/14/2019   |   Inventor(s): Andrew Jordan, John Howell
Keywords(s):  
Category(s): Devices, Imaging
Perfect Paraxial Cloak Design and Device
Applications A paraxial cloaking device provides a cloaking volume in which an item can be hidden from view, from a continuous range of directions in three dimensions. Advantages The cloaking device overcomes some of the limitations of previous devices, such as background discontinuity, using inexpensive, readily available materials in a novel con...
Published: 10/1/2014   |   Inventor(s): Joseph Choi, John Howell
Keywords(s):  
Category(s): Optics