The Fresnel rhomb is used for the production 0of 0cirularly
polarized light. In this paper, we propose a set of two 45 -90 -45 prisms
which is equivalent to the Fresnel rhomb. The analysis of polarization
properties of such a set of prisms was done and it was found that fo
orginary experiments on polarizatin, it may satisfactory to use two 45 -90-
45 prisms for producing the circularly polarized light. It is not necessary
to fabricate a special prism i.e. the Fresnel rhomb with special angles. If
the faces of the prisms are coated with antireflection coatings, a high
degree of circularly polarized light is obtained. The polarization
calculations were done and verified by experiment.
Some simple methods for calculating the radii of curvature of the null mirrors for a given Ritchey-Chretein system are described. The cases considered include the null for the concave primary, the null for the convex secondary, and examples of unobscured design, on-axis design, and off-axis design.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.