Conferences and Exhibitions
Optical Perspectives Group will be at SPIE Optics + Photonics 2022
23 - 25 August 2022
Booth #735
San Diego Convention Center
111 W Harbor Dr.
San Diego, CA 92101
Optical Perspectives Group at SPIE
Optical Perspectives Group will also be at ASPE
37th Annual Meeting of the American Society for Precision Engineering
10 - 14 October 2022
Booth #2
Hyatt Regency BellevueBellevue, Washington, USA
News & Applications
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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
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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Updates about PSM cameras and supply chain issues
While OPG normally keeps PSMs in stock we are experiencing supply chain issues with cameras.For more information about this continue reading...
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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 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.
Featured Products
New Products
Right Angle Adapter Accessory for PSM
The Right Angle Adapter (RAA) is an attachment for the Point Source Microscope (PSM) that adds flexibility to the PSM by allowing the objective to be attached at right angles to the axis of the PSM.
Set of 10 balls for use with the PSM
Precision balls for use with the PSM for alignment and assembly of optical systems.
“C” mount Objective Adapter
The “C” mount has 1”-32 TPI and fits many Edmund Optics lens tubes and fittings.
Thorlabs SM1 Objective Adapter
The Thorlabs SM1 adapter with 1.035-40 TPI fits many Thorlabs SM1 lens tubes.
Mitutoyo Objective Adapter
The Mitutoyo adapter with M26x36 TPI fits their long working distance objectives.
Calibration Package for PSM
OPG offers a NIST traceable square wave grating with 4 lp/mm spacing for use in calibrating the lateral scale of the PSM and other optical instruments.
Calibration Package for PSM Angular Measurement
OPG offers a PTB traceable 1” diameter window with an approximate 30 arc minute wedge measured for exact value to better than 1 arc second on a Trioptics PrismMaster and a Certificate of that measurement.
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.
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
– 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
Downloads
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SPREADSHEET FROM APPLIED OPTICS PAPER:
"Measuring the four paraxial lens parameters using an autostigmatic microscope"
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BIBLIOGRAPHY OF DOWNLOADABLE PAPERS
You must register and log in to access the Bibliography of Downloadable Papers.
Case Studies & Testimonials
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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. Thank you, IDEX.
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"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
Worldwide Representatives
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:
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
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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