Share Email Print

Optical Engineering

Null testing using the virtual conjugates satisfying the Herschel condition
Author(s): Rick Dale Blakley
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Utilizing the Herschel condition, a method is presented for null testing most refractor doublet objectives, including the Baker air-spaced design with equal internal radii, and Maksutov corrector plates using auxiliary spherical mirrors. A special Baker air-spaced objective is offered that utilizes a spherical mirror in null testing that is generated by silvering the front face of the doublet's crown lens or immersing it into mercury. The classical Schmidt corrector is found to deny null testing using the technique.

Paper Details

Date Published: 1 January 1995
PDF: 4 pages
Opt. Eng. 34(1) doi: 10.1117/12.184068
Published in: Optical Engineering Volume 34, Issue 1
Show Author Affiliations

© SPIE. Terms of Use
Back to Top