Hello all,
 
We received from Klaus Leckebush some excellent photographs of an Iwan Kahn optical fiber focusing sundial, one of several sundials that he made that use them.  It is the December Sundial of the month at www.stainedglasssundials.com
 
I won't go into an explanation of how it works since you can read about it on the website in the Image Archive under Stained Glass Sundials of the 20th Century, Dial 160.
 
Not only are these dials technological wonders, they are exquisitely painted with intricate scrollwork and other adornments.  He also did a few similar dials that are just etched glass and can be found in the etched glass section.  (Check out Dial 196!)
 
I've been in contact with Mr. Kahn who is now 83 years old.  He is sending me good photos of his other dials that were on the Behrendt videotape which Dave Bell will post when we get them.
 
If you go to Dial 160, there are links there to his articles that describe the construction of his dials more deeply.
 
Direct Links:
 
John

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