Using the Point Source Microscope (PSM) to find conjugates of parabolic and elliptical off-axis mirrors

Robert E. Parks; Michael Borden

doi:10.1117/12.894333

12 September 2011 Using the Point Source Microscope (PSM) to find conjugates of parabolic and elliptical off-axis mirrors

Robert E. Parks, Michael Borden

Author Affiliations +

Proceedings Volume 8131, Optical System Alignment, Tolerancing, and Verification V; 81310A (2011) https://doi.org/10.1117/12.894333
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

Although the PSM is primarily an alignment instrument, it can also be used to determine the conjugates of parabolic and elliptical off-axis mirrors. By positioning the PSM at the sagittal and tangential foci of the mirrors, the conjugate distances of the mirror can be found using a laser range finder, for example. Knowing the sagittal and tangential radii of curvature (Rs and Rt), the vertex radius (Rv) is easily calculated. This information is used to verify that the mirror has been correctly manufactured and to aid in positioning the mirror in an optical system. Examples are shown of these steps.

Citation Download Citation

Robert E. Parks and Michael Borden "Using the Point Source Microscope (PSM) to find conjugates of parabolic and elliptical off-axis mirrors", Proc. SPIE 8131, Optical System Alignment, Tolerancing, and Verification V, 81310A (12 September 2011); https://doi.org/10.1117/12.894333

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