Optical Perspectives Group at SPIE

Optical Perspectives Group at SPIE

ASPE 2023 Winter Topical Meeting

ASPE 2023 Winter Topical Meeting

Precision Optical Metrology Workshop

Westward Look Wyndham Grand Resort and Spa
Tucson, Arizona, USA
March 6-7, 2023

More info

  • PRODUCTS FROM OPTICAL PERSPECTIVES

    CALIBALL I

    CALIBALL I

    a calibration artifact using the Random Ball Test
    PSM POINT SOURCE MICROSCOPE

    PSM POINT SOURCE MICROSCOPE

    a complete, self-contained, portable metrology system
    CALIBALL II

    CALIBALL II

    a horizontal interferometer calibration device

    PRODUCT DETAILS ↓

News & Applications

  • Free PSM data logging software available

    A user of a PSM mentioned that it was too bad that data of spot positions could not be logged in the PSM Align software. This is true, data cannot be logged in the PSM Align software, but there is a version of the software designed for use with the centering station, LCS-PSM Align, that does log data. We do not send this version of the software out with the PSM alone because we figure it is not needed, at least initially, and it just adds more to the time to get familiar with the PSM.

    On the other hand...

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  • New Paper presented at OptiFab 2021

    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...

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  • Need custom optical test equipment?

    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 the custom hardware is built the PSM is bolted in place, connected to its computer and the test hardware is ready to use as an autocollimator, alignment device or centering sensor.

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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.

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  • Adding mechanical datums to CGHs and Fresnel mirrors

    In general, computer generated holograms (CGHs) and plane Fresnel mirrors (and lenses), made by the same techniques as CGHs, have optical “datums” or foci that are “rigidly attached” to the CGH or Fresnel plane substrate and move in six degrees of freedom with the substrate.

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A Contemporary Version of the Autostigmatic Microscope and Its Uses

OUTLINE

What is an autostigmatic microscope (ASM)

Measuring the radius of curvature of a concave surface
– Main historical use

Modern version of an ASM uses internal infinite conjugate optics

Use of an ASM for alignment of optical systems

Other uses of an ASM

Conclusions

View Presentation

Downloads

  • SPREADSHEET FROM APPLIED OPTICS PAPER:

     

    "Measuring the four paraxial lens parameters using an autostigmatic microscope"

     

    DOWNLOAD HERE

  • BIBLIOGRAPHY OF DOWNLOADABLE PAPERS

     

    You must register and log in to access the Bibliography of Downloadable Papers.

    DOWNLOAD HERE

Papers by Others

KEEPING UP WITH THE MANY USES AND APPLICATIONS OF THE PSM

It is difficult to keep up with the many uses and applications of the PSM, so we have put together a list of papers of journal articles sorted by application where others describe how they have used the PSM in their work. In each case we cite the article so you can find the whole paper. We also highlight the specific reference to the PSM in the paper. Here you will find applications that come closest to your interests from researchers around the world.

Read more

Case Studies & Testimonials

  • Sometimes good news goes unnoticed for the longest time. We just stumbled on this unattributed, but complimentary note about the PSM.
    See  https://www.idex-hs.com/wp-content/uploads/2018/05/Enabling-Micron-Level-Mounting-Accuracy.pdf   

    Notice the PSM in the top center of Fig. 9.  Optical Perspectives Group would like to express "thank you, IDEX".

  • "We are enjoying our Point Source Microscope and finding it invaluable in alignment and diagnostic tasks."

    Dr. John Mitchell
    Senior Optical Metrologist
    Glyndwr Innovations Ltd., St. Asaph, Wales, UK

     

  • "Just wanted to share a recent success aligning an adaptive optics test bed with the PSM. We used to use a traditional alignment telescope in the past, but the PSM made the whole process really easy and fast. The main requirements were to quickly determine the quality of beam collimation and pupil conjugates since there are several beam expanders and compressors with multiple pupil and focal planes."

    Suresh Sivanandam
    Dunlap Institute for Astronomy and Astrophysics
    University of Toronto

     

  • "You are always responsive and give us lots of useful information!!"

    Dr. Shaojie Chen
    Dunlap Institute for Astronomy and Astrophysics
    University of Toronto

     

  • "As always we are very much loving the instrument, I personally love the camera upgrade from what I'm used to!"

    Weslin Pullen
    Hart Scientific Consulting International, LLC
    Tucson, Arizona

     

OPG Customers

Optical Perspectives Group, LLC is pleased to announce that Optical Support, Inc. of Tucson, AZ  is manufacturing all of our products, including the Point Source Microscope, the MicroFinish Topographer and the Axicon Centering Station.  Optical Support  is a vertically integrated, engineering services company specializing in design and manufacturing of precision optical instruments and custom metrology tooling.

Worldwide Representatives

FOR SALES IN CHINA PLEASE CONTACT:

FOR SALES IN CHINA PLEASE CONTACT:
OPTurn Company Ltd
R607, Yingzhi Building, 49-3 Suzhoujie Str.
Beijing, China
+86-10 62527842
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FOR SALES IN ALL OTHER ASIAN COUNTRIES PLEASE CONTACT:

FOR SALES IN ALL OTHER ASIAN COUNTRIES PLEASE CONTACT:

清 原 耕 輔   Kosuke Kiyohara
清原光学 営業部   Kiyohara Optics / Sales
+81-3-5918-8501
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Kiyohara Optics Inc.
3-28-10 Funado Itabashi-Ku Tokyo, Japan 174-0041

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FOR SALES IN UK & EU PLEASE CONTACT

Armstrong Optical

+44(0) 1604 654220

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FOR SALES IN AUSTRALIA & NEW ZEALAND PLEASE CONTACT

Mersenne Optical Consulting

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