The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 1983
Filed:
Oct. 08, 1980
Edward P Wallner, Wayland, MA (US);
William B Wetherell, Stoneham, MA (US);
Abstract
An atmospheric dispersion corrector having a housing capable of mounting therein either a pair of single prisms or a pair of compound prisms which can be either rotated with respect to each other or rotated, as a unit, simultaneously with each other. The specific requirements for the prisms making up both the pair of single prisms or the pair of compound prisms permit the corrector to rotate the single prisms or compound prisms through a particular rotation angle with respect to a vertical plane at which atmospheric dispersion correction over a broad spectral bandpass range can be achieved. These specific requirements encompass not only particular prism angles but also specific glass types from which the prisms are manufactured.