Next space telescope could use a Fresnel lens
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Next space telescope could use a Fresnel lens
The article talks about the next (possible) space telescope and how it may use a Fresnel lens rather than mirrors or conventional lens.
https://theconversation.com/a-new-thin- ... ses-206055
https://theconversation.com/a-new-thin- ... ses-206055
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Re: Next space telescope could use a Fresnel lens
It will be interesting to see if they can make this work well over a decent bandwidth.
Here's more technical details:
https://opg.optica.org/osac/fulltext.cf ... &id=446612
Looking forward to seeing this in Earth-based refractors for amateur astronomy?
Here's more technical details:
https://opg.optica.org/osac/fulltext.cf ... &id=446612
Looking forward to seeing this in Earth-based refractors for amateur astronomy?
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Re: Next space telescope could use a Fresnel lens
thx for the infos .
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Re: Next space telescope could use a Fresnel lens
35 x 8.5m lenses!!!
Thanks for the link.
Graeme
Thanks for the link.
Graeme
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Re: Next space telescope could use a Fresnel lens
Fresnel lenses are not useful for imaging at all. I don't see how this modification eliminates all the obvious disadvantages. It als suggests that it is meant for spectral analysis from planets passing in front of a star, as opposed to direct imaging that a good telescope can do. They talk about very smallAntennaGuy wrote: ↑Thu Jul 13, 2023 7:11 pm It will be interesting to see if they can make this work well over a decent bandwidth.
Here's more technical details:
https://opg.optica.org/osac/fulltext.cf ... &id=446612
Looking forward to seeing this in Earth-based refractors for amateur astronomy?
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