National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
A Wide-Angle Photographic Camera of James G. Baker With the Paraboloidal Mirror
Rail, Zdeněk ; Melich, Zbyněk ; Šrajer, Bohdan ; Vápenka, David ; Tomka, David ; Thoř, Tomáš ; Pintr, Pavel ; Macner, David
A field of view of the paraboloidal mirror is small. Dominant aberration which limits its angular diameter is coma. Using correctors consisting lenses and aspherical plates star images of the mirror systems can be radically corrected. In this paper we present optical design of such photographic camera computed by James G. Baker. His device is composed of a paraboloidal mirror, a cemented dublet in front of focus and an aspherical plate placed in entrance parallel beam.
The Coma Corrector of D.M.Maksutov
Rail, Zdeněk ; Jareš, Daniel ; Vápenka, David
The simpliest coma corrector of the paraboloidal mirror is a singlet-meniscus of Maksutov. This corrector placed into converging beam of a paraboloidal mirror corrects coma and saves stigmatic image of the system on its optical axis. The corrector can be easily to built and enlarges the field of view about three times.

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