Search results
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Title
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DUCTILE MACHINING OF CRYSTALLINE MATERIALS WITH VARIABLE RAKE SINGLE POINT DIAMOND MACHINING
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Author
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Griffin, Adam
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Date Created
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2019
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Subjects--Topical
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Mechanical engineering, Materials science
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Description
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The effect of a variable rake machining process such as Fast Tool Servo (FTS) on optical IR crystalline materials isn’t well understood and can be difficult to test. This thesis proposes and develops the concept of using a 'starburst' cut geometry...
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Title
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Design for Metrology of Freeform Optics
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Author
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Venditti, Kristen
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Date Created
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2020
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Description
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Freeform optics offer significant advantages over the conventional aspheric optics, but pose new challenges in metrology and manufacturing. The spatial frequencies of an optical surface that must be measured have changed due to the progression of ...
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Title
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Design for Metrology of Freeform Optics
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Author
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Venditti, Kristen
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Date Created
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2020
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Subjects--Topical
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Mechanical engineering, Optics, Engineering
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Description
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Freeform optics offer significant advantages over the conventional aspheric optics, but pose new challenges in metrology and manufacturing. The spatial frequencies of an optical surface that must be measured have changed due to the progression of ...
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Title
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Displacement Scale Based on Speckles
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Author
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Farsad, Mahsa
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Date Created
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2015
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Description
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Speckle patterns are complex intensity distributions, which occur when an optically rough surface is illuminated with a coherent light. The speckle phenomenon was known to be troublesome when the laser was first introduced, but later it was discov...
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Title
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Displacement Scale Based on Speckles
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Author
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Farsad, Mahsa
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Date Created
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2015
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Subjects--Topical
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Mechanical engineering, Optics
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Description
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Speckle patterns are complex intensity distributions, which occur when an optically rough surface is illuminated with a coherent light. The speckle phenomenon was known to be troublesome when the laser was first introduced, but later it was discov...
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Title
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Freeform Optical Surface Form Metrology with Serial Data Acquisition
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Author
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Noste, Todd
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Date Created
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2021
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Description
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Freeform optics, or optics with no axis of rotational invariance, provide optical designers more degrees of freedom, flexibility, and opportunity for innovation increasing optical performance and system integration while decreasing the form factor...
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Title
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Freeform Optical Surface Form Metrology with Serial Data Acquisition
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Author
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Noste, Todd
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Date Created
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2021
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Subjects--Topical
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Mechanical engineering, Optics, Physics
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Description
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Freeform optics, or optics with no axis of rotational invariance, provide optical designers more degrees of freedom, flexibility, and opportunity for innovation increasing optical performance and system integration while decreasing the form factor...
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Title
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Minimizing Task-Specific Uncertainty in CMM-Based Freeform Optics Metrology
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Author
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Uwakwe, Michael
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Date Created
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2018
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Description
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Measurements of surface form involve a comparison between the form of the test surface and a reference. In coordinate measuring machine (CMM) measurements, this reference is the machine geometry. The measurement results typically show a height map...
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Title
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Minimizing Task-Specific Uncertainty in CMM-Based Freeform Optics Metrology
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Author
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Uwakwe, Michael
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering, Optics, Metrology
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Description
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Measurements of surface form involve a comparison between the form of the test surface and a reference. In coordinate measuring machine (CMM) measurements, this reference is the machine geometry. The measurement results typically show a height map...
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Title
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OPTICAL METROLOGY OF FREEFORM OPTICS UTILIZING INTERFEROMETRIC STITCHING
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Author
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Hovis, Clark
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Date Created
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2019
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Description
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The utilization of interferometric stitching with coherence scanning interferometers has allowed these instruments to measure much larger areas than a single site measurement would permit. This has a major impact on the measurement of mid-spatials...
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Title
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OPTICAL METROLOGY OF FREEFORM OPTICS UTILIZING INTERFEROMETRIC STITCHING
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Author
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Hovis, Clark
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Date Created
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2019
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Subjects--Topical
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Mechanical engineering, Optics, Engineering
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Description
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The utilization of interferometric stitching with coherence scanning interferometers has allowed these instruments to measure much larger areas than a single site measurement would permit. This has a major impact on the measurement of mid-spatials...
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Title
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Optical surface characterization with the structure function
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Author
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He, Liangyu
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Date Created
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2013
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Description
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It is important to characterize surface and transmitted wavefront errors in terms of the spatial content. The errors are typically analyzed in three spatial domains: figure, ripple (or mid-spatial frequency) and roughness. These errors can affect ...
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Title
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Optical surface characterization with the structure function
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Author
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He, Liangyu
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Date Created
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2013
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Description
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It is important to characterize surface and transmitted wavefront errors in terms of the spatial content. The errors are typically analyzed in three spatial domains: figure, ripple (or mid-spatial frequency) and roughness. These errors can affect ...
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Title
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Optical surface characterization with the structure function
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Author
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He, Liangyu
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Date Created
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2013
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Subjects--Topical
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Mechanical engineering, Optics
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Description
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It is important to characterize surface and transmitted wavefront errors in terms of the spatial content. The errors are typically analyzed in three spatial domains: figure, ripple (or mid-spatial frequency) and roughness. These errors can affect ...