Papers Published by Optical Perspectives Group

Swing Arm Optical Coordinate-Measuring Machine: High Precision Ground Aspheric Surfaces Using A Laser Triangulation Probe

ABSTRACT The swing arm optical coordinate-measuring machine (SOC), a profilometer with a distance measuring interferometric sensor for in situ measurement of the topography of aspheric surfaces, has shown a precision rivaling the full aperture interferometric test. To further increase optical manufacturing efficiency, we enhance the SOC with an optical laser triangulation sensor for measuring test […]

Calculation Of The Vertex Radius Of An Off Axis Parabolic Surface Using The Sag Measured With A Three Ball Spherometer

Optical Testing, Published Papers

Abstract We describe a method of calculating the vertex radius of an off-axis parabolic segment using a three ball spherometer to measure the sag. The vertex radius is found by solving a set of six simultaneous, non-linear equations for the three coordinates of one of the ball centers and the corresponding three coordinates of the […]

Practical Alignment Using An Autostigmatic Microscope

Centering, Published Papers

ABSTRACT Auto-stigmatic microscopes (ASM) are useful for bringing centers of curvatures of lenses and mirrors to the centers of balls used as part of an alignment fixture. However, setting up the fixture to get the balls used for alignment in a straight line to represent the optical axis generally requires another piece of equipment. We […]

Lens Centering Using The Point Source Microscope

Centering, Published Papers

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 […]

Conjugate Selection For Precision Lens Centering

Centering, Published Papers

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 […]

Centering with the PSM

Centering, PSM Applications, Published Papers

Centering with the Point Source Microscope (PSM) is a perfect application. Centering with the Point Source Microscope (PSM) is a perfect application. When a spot of light from the objective focus is reflected back from a concave surface sitting on a rotary table, it will sweep out a circle on the video screen as the […]

Stay Up to Date

Worldwide Representatives

USA

Edmond Optics Worldwide
https://www.edmundoptics.com/contact-

Innovations Foresight
4432 Mallard Point,
Columbus, IN 47201 USA
Telephone:
1-215-884-1101
Contact:
Customerservice@innovationsforesight.com

More Info

UK & EU

Armstrong Optical
+44(0) 1604 654220
info@armstrongoptical.co.uk

More Info

All Asian Countries Except China

清　原　耕　輔 Kosuke Kiyohara
清原光学　営業部 Kiyohara Optics / Sales
+81-3-5918-8501
opg-sales@koptic.co.jp

Kiyohara Optics Inc.
3-28-10 Funado Itabashi-Ku Tokyo, Japan 174-0041

More Info

China

Langxin (Suzhou) Precision Optics Co., Ltd
1st floor, Building 10, Yisu Science and Technology Innovation Park, 100 meters west of the intersection of Xinhua Road and Weimeng Road, Kunshan City, Suzhou City, Jiangsu Province, 215345