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Re: MARS HYBRID DESIGN II (First Draft)
- To: KellySt@aol.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, David@InterWorld.com, firstname.lastname@example.org, email@example.com
- Subject: Re: MARS HYBRID DESIGN II (First Draft)
- From: T.L.G.vanderLinden@student.utwente.nl (Timothy van der Linden)
- Date: Fri, 08 Mar 1996 16:32:44 +0100
>>As far as I know Fresnel lenses are not really lenses, that means they don't
>>magnify or bundle lightrays.
>Not necessarily true. Fresnel lenses have been used as magnifying glasses
>for years. Check into any good book on laser research.
>>These "lenses" are constructed in such a way that all outgoing light has the
>>same phase at a predetermined distance (the "focusing" distance).
>>the cancellation of two waves with a 180 degree phase difference is prevented.
>>So this method is only valid when normally INTERFERENCE makes de total
>Ummm, not sure.
I think my misunderstanding is already solved, but thanks.
P.S. What is your first name?