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Tagged with: Lens Centering

Conjugate Selection for Precision Lens Centering (ABSTRACT)

ABSTRACT: The concept of centering a precision, symmetric lens system using a high-quality rotary table and an auto-focusing test instrument are well known. Less well known are methods of finding convenient, or easily accessible, lens conjugates on which to focus while performing the centering operation. We introduce methods of finding suitable conjugates and centering configurations that lend themselves to practical centering solutions.

Lens Centering Using the Point Source Microscope (ABSTRACT)

ABSTRACT: Precision lens centering is necessary to obtain the maximum performance from a centered lens system. A technique to achieve precision centering is presented that incorporates the simultaneous viewing through the upper lens surface of the centers of curvature of each element as it is assembled in a lens barrel. This permits the alignment of the optical axis of each element on the axis of a precision rotary table which is taken as the axis of the assembly.

Versatile Autostigmatic Microscope (ABSTRACT)

ABSTRACT: Use of the PSM to find wedge in hemispherical domes, to measure angles as an autocollimator, to check centration in molded optics and to check spindle runout.

Case Studies & Testimonials

  • "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 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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