Letter Re: A Low Cost Source for Fresnel Lenses
Jim: By coincidence, I just opened Saturday’s post to find the link to the Fresnel lens YouTube video. What are the odds? On Friday I went yard sale shopping. (A rare day of freedom for me since I normally work that day. We are down for two weeks for factory work and in preparation of the new potato crop.) At this sale was the Fresnel lens from a scrapped out projection television set on the front lawn. It was leaning up and in the open. I told the lady that is not a good idea an explained to her the …