Abstract

A magnetic video tape can be used to record the polarization of light from each minimum resolvable area of an extended astronomical source. The raster scan of a television camera is recorded on a video tape. The rotation index of a polarizer is recorded on the magnetic-tape audio channel. Raw data input to a computer is provided by the digitized output from the recorded magnetic tape. For each minimum resolvable area of the extended light source, the computer printout shows the intensity and the percentage and direction of polarization. The solar corona during an eclipse is one example of a suitable subject.

© 1970 Optical Society of America

Eclipse Instrumentation for the Solar Corona

D. H. Menzel and J. M. Pasachoff
Appl. Opt. 9(12) 2626-2630 (1970)

Studies of Coronal Lines with Electronic Cameras During the Eclipse of 7 March 1970

B. Fort
Appl. Opt. 9(12) 2643-2647 (1970)

An Optical System for Monochromatic Photography of the Electron Corona

K. E. Kissell, C. Morais, A. Righini, and G. Righini
Appl. Opt. 9(12) 2620-2625 (1970)

Apparatus for Measurement of Luminescence Spectra with a Digital Recording System

F. R. Lipsett, G. Bechthold, F. D. Blair, F. V. Cairns, and D. H. O’Hara
Appl. Opt. 9(6) 1312-1318 (1970)

Optics and the Mariner Imaging Instrument

D. R. Montgomery and L. A. Adams
Appl. Opt. 9(2) 277-287 (1970)