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Author Topic: Lighthouse Lenses  (Read 432 times)

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Offline Tony H

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Lighthouse Lenses
« on: January 07, 2007, 04:47:17 AM »
Hi Guys

Found this when doing a Google search quite interesting

http://uslhs.org/assets/articles/article_fresnel_lens_1.pdf

Tony H in NZ


Offline David E

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Re: Lighthouse Lenses
« Reply #1 on: January 07, 2007, 09:30:19 AM »
Thanks Tony. I've written quite a bit about optics, in particular lighthouse lenses, so this is an excellent piece to discover :D

I'll go through it later...
David
► The Curious History of the Bulb Vase ◄
 A new book by Patricia Coccoris

Contact ► Cortex Design ◄ to order any book


Offline Tony H

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Re: Lighthouse Lenses
« Reply #2 on: January 07, 2007, 09:40:35 AM »
David

Glad you found this, here are two more, these are on Chance Glass but you may have seen these already.

http://www.search.revolutionaryplayers.org.uk/content/files/74/93/305.txt 

http://www.search.revolutionaryplayers.org.uk/engine/resource/exhibition/standard/default.asp?resource=2042


Tony H in NZ


Offline David E

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Re: Lighthouse Lenses
« Reply #3 on: January 07, 2007, 10:09:03 AM »
Thanks, yes I was aware of Revolutionary Players - an absolute gold mine for historical researchers of the English Midlands' heritage. How did we manage without the internet? 8)
David
► The Curious History of the Bulb Vase ◄
 A new book by Patricia Coccoris

Contact ► Cortex Design ◄ to order any book


 

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