Correction to: Simple Model of Corner Reflector Phenomena.
Shortly before publication of my paper, I finally received a copy of a report for which I had been searching for several months. Applied Optics inserted a note in proof in my paper to mention that report, but that note, as printed, refers to the wrong report. The note added in proof should have referred to Ref. 4, which is, R. C. Spencer, "Optical Theory of the Corner Reflector," M I T Radiation Laboratory Report 433, 2 March 1944. I t is an excellent report. I t discusses in a somewhat different manner much of the subject matter covered in my paper, but the effective aperture visualization models presented are similar to those that I developed. Spencer and his co-workers performed and reported an extremely thorough and detailed analysis. I t is unfortunate that this report had been so difficult to trace. I t apparently was so as a result of its original security classification, and I assume that most organizations did not retain copies of it. I t is, however, now available from the Library of Congress as an unclassified report, and I recommend it as background reading on this subject.