Published Papers

Rapid Centering Of Optics

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ABSTRACT Traditionally a rotary table is used for optical centering because the table creates an axis as a reference. Previously, we showed that a Bessel beam also creates an axis useful for centering. The Bessel beam axis and a center of curvature of a surface makes it possible to center an optic simultaneously in tilt […]
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New Paper Presented at OptiFab 2021

During the SPIE Optifab Exhibition 18 – 21 October 2021, Robert (Bob) Parks presented a newly published paper.  For more information about this continue reading… This paper is available to read on optiper.com:
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Practical Considerations For Using Grating Produced Bessel Beams For Alignment Purposes

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ABSTRACT Bessel beams are useful for alignment because they create a small diameter, bright, straight line image in space perpendicular to the Axicon, or Axicon grating, producing the beam that is an exact analog of a single ray in a ray tracing program. Here we limit our discussion to Bessel beams produced by plane gratings […]
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Need Custom Optical Test Equipment?

WHY START FROM SCRATCH WHEN YOU CAN ORDER A PSM FROM OUR WEBSITE? It may surprise you but about 15% of Point Source Microscopes (PSMs) purchased are built into custom optical test hardware. Optical Perspectives supplies a CAD model of the PSM to help the customer integrate the PSM into their test hardware design. When […]
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Announcement of Re-Publication of “Optics and Optical Instruments—Preparation of Drawings for Optical Elements and Systems: A User’s Guide”

FROM THE OSA PUBLISHING BOOKSHELF OSA Standards Committeeeds. Ronald K. Kimmel and Robert E. Parks We hope you appreciate this republication of ISO 10110 Optics and Optical Instruments—Preparation of Drawings for Optical Elements and Systems: A User’s Guide, first published in 1995. This open-access republication is intended to give you a feel for the ISO 10110 […]
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Using the PSM as an Autocollimator

The other day I got a call from a PSM user asking about calibration. What he was really asking about was the setting of the zero, or origin, on the video screen. CROSSHAIRS IN THE CENTER OF THE FIELD  This is the same sort of “calibration” people talk about when using autocollimators, which are the […]
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