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News announcements and other topics => News => Topic started by: franco malgarini on October 16, 2016, 01:25:43 PM
Title:
Fresnel Telescope DIY
Post by:
franco malgarini
on
October 16, 2016, 01:25:43 PM
Use fresnel lens 1 meter and phase conjugated mirror
Title:
Re: Fresnel Telescope DIY
Post by:
franco malgarini
on
October 16, 2016, 02:31:03 PM
https://en.wikipedia.org/wiki/Fresnel_Imager
https://www.alibaba.com/product-detail/1000mm-1000mm-big-solar-spot-fresnel_60325826287.html
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