National Instruments Corporation

Semicube, Inc.

Mark S Williams

Lothar Wenzel

John E MacCrisken

Raymond M Warner, Jr

Lynn Millar, Legal Representative

A system and method for parallel-beam scanning a surface. An energetic beam source emits an energetic collimated beam which is received by an optical device, comprising: one or more optical media, operable to receive the emitted beam, such as two pairs of coordinated mirrors or a right prism, and at least one actuator coupled to the one or more optical media, and operable to rotate each of the one or more optical media around a respective axis to perform a parallel displacement of the beam in a respective direction, wherein the respective direction, the beam, and the respective axis are mutually orthogonal. The optical device is operable to direct the beam to illuminate a sequence of specified regions of a surface.

Parallel-beam scanning for surface patterning of materials

System and method for detecting symmetries of discrete curves. A mapping operator is applied to a first discrete curve to amplify its features, generating a first mapped discrete curve. A correlation of the first mapped discrete curve with each of a plurality of rotationally shifted versions of a second mapped discrete curve is computed, generating a corresponding plurality of correlation values. A minimum period of the two curves is determined based on the correlation values, and, based on the minimum period, a symmetry group (SG) of the two curves is determined and output. If the two curves are the same curve, the SG is the rotational SG of the discrete curve. If the second curve is a reflection of the first, the SG is the mutual reflection SG of the first. If the first and second curves are different curves, the SG is the mutual SG of the two curves.

Growing community of inventors

Austin, TX, United States of America

Mark S Williams