Featured Products
MICROFINISH TOPOGRAPHER
Universal Surface Roughness Measurement
AXICON CENTERING STATION
for PSM Point Source Microscope
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.
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.
Conferences and Exhibitions
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Aug. 24-28, 2020
MORE INFO
Free Digital Forum
Online Only
News
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During the SPIE Optics + Photonics Free Digital Forum
(Online Only) August 24-28 2020,
Robert (Bob) Parks will be presenting two newly published papers. -
This month's PSM application describes measuring the radius of curvature of a spherical surface.
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Experimental setup:
A Point Source Microscope (PSM) was mounted on a motorized vertical stage above a 25 mm diameter, 200 mm efl lens sitting above a plane mirror. A square black paper mask with an 8 mm diameter hole was placed over the lens as shown in the figure below to give an f/25 aperture.
A Contemporary Version of the Autostigmatic Microscope and Its Uses
OUTLINE
– Main historical use
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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"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 -
The PSM is an ideal tool for finding the center of curvature of a ball or the axis of a cylinder. The question is for how small a ball or cylinder can the PSM do this?
The smallest article that was readily available was a piece of monofilament 8 pound test fishing line that was 290 μm in diameter. There was no problem finding the axis of the fishline, and separating the Cat’s eye reflection from the surface from the confocal reflection of the axis. The experiment was done with a 5x objective, and the result would have been even more definitive using a 10x objective.
Worldwide Representatives
FOR SALES IN CHINA 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
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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