Mitutoyo Corporation

Maxwell James Perkins

Scott Allen Harsila

Isaiah Freerksen

A workpiece holder is configured to hold a workpiece and is utilized in a metrology system which includes a sensing configuration for obtaining 3-dimensional surface data for the workpiece. The workpiece holder includes at least three reference features (e.g., spherical reference features extending from sides) that are configured to be sensed by the sensing configuration when the workpiece holder is in different orientations (e.g., as rotated 180 degrees between first and second orientations for presenting front and back sides of the workpiece towards the sensing configuration). A determination of 3-dimensional positions of the reference features for each orientation enables a combining (e.g., in a common coordinate system) of 3-dimensional surface data that is acquired for the workpiece in each orientation. Interchangeable workpiece holding portions may be provided that fit within the workpiece holder for holding workpieces with different characteristics (e.g., having different sizes and/or shapes).

Workpiece holder for utilization in metrology system for measuring workpiece in different orientations

A tunable acoustic gradient (TAG) lens is provided including a lens casing, a refractive fluid, a controllable acoustic wave generating element (e.g., a piezoelectric vibrator) and an external reservoir configuration. An operational volume of the refractive fluid is contained in a casing cavity of the lens casing. The external reservoir configuration includes a deformable external fluid reservoir that contains a reserve volume of the refractive fluid and that is connected to the casing cavity by a flow channel. The flow channel enables the refractive fluid to flow back and forth between the casing cavity and the deformable external fluid reservoir in accordance with expansion and contraction of the refractive fluid (e.g., due to changes in temperature). The lens casing, deformable external fluid reservoir and flow channel are configured as a sealed system, with no intentional gas volume included in the sealed system.

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Mountlake Terrace, WA, United States of America

Maxwell James Perkins