The article on making an apodizing screen and the spreadsheet are very long (~0.6 to 0.7 MB). The design article is a good deal shorter and contains much of the meat of the whole page. I am sorry, but the spreadsheet has a lot of calculations and the Making article a lot of photographs. I advise you to look at the design article and decide if you want to download the longer works.
All items appearing on this page are copyrighted by Harold R. Suiter. Brief quotes may be used as long as they are properly referenced. All other rights reserved. The spreadsheet is partially locked against improper entries for protection against fumble-fingers. You may modify the yellow cells.
An article I wrote in the summer of 2001, about the design of apodizers for obstructed apertures. I wrote it because most of the screens I see mentioned on the net and in the literature are designed either for unobstruced apertures or (sadly) not even designed at all. Most of these latter screens are imitations of a friend who heard it from a friend. As a consequence, they seldom work as well as they should.
A sidebar article I also wrote in the summer of 2001, about making a large apodizer.
The design spreadsheet.
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