Why is this Space Telescope so Tiny?

Huygens Optics • October 15, 2021

Huygens Optics

About

Hi, my name is Jeroen and on the Huygens Optics channel I publish videos on personal projects. My main fields of interest are optics, mechanics and photolithography. The videos aren't targeted towards a general audience but for people with a passion for science and technology (e.g. my fellow nerds). The channel is named after the famous Dutch mathematician, astronomer and inventor Christiaan Huygens (1629-1695). He was the first to publish a mathematical description of the wave properties of light, and also discovered Saturn's rings. I make these videos for fun, without a financial motivation. Please don't contact me for sponsoring contracts or in-video advertisement. Neither me nor my viewers are interested. If you want to contribute as a viewer, you can do so by either donating using the Paypal link or by using the Patreon account: https://www.patreon.com/huygens_optics Your donation helps me to make better videos.

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Video Description

If you want to take a look through a similar telescope, follow this link: https://www.youtube.com/watch?v=2lf6uuU51Z8&t=1608s Optical Engineer Rik ter Horst shows us how he makes very small telescopes (at home) which are intended for use in micro-satellites. Contents: 0:00 Intro 1:06 About telescopes and focal length 3:35 The Cassegrain telescope 4:38 The Schmidt-Cassegrain telescope 5:18 The monolithic telescope concept 6:30 Rik ter Horst Interview 10:25 Riks' polishing setup 13:51 About manufacturing aspherics 16:50 Advantages of solid telescopes 17:49 Dreaming about a VLTT ORESAT PROJECT CORRECTION. I was notified that the name of the university behind the OreSat project is erroneous: It is the "Portland State University" (https://www.pdx.edu/), not University of Portland. Sorry about that! Direct link to the Oresat project: https://www.oresat.org/ Rik published details about the 1993 version of this type of telescope on cloudynights.com in 2013. https://www.cloudynights.com/topic/406276-a-solid-30-mm-f10-schmidt-cassegrain/ (archived article) 2:34 The image shows the second telescope of Galileo, not the first telescope of Lipperhey. The video contains images of external sources. Please visit their websites for more information: - Star party image was taken from: https://www.nps.gov/cebe/planyourvisit/star-party.htm - More amazing astro-photos made by Dick van Tatenhoven can be found at: https://www.sterrenwachtalmere.nl/donateurs/dick - NOVA-Astron website: https://www.astron.nl/about/organisation/nova/ - Yerkes telescope photo from: https://www.space.com/26858-yerkes-observatory.html - Source of image at 0:41 is http://www.bxoptic.com/production-workshop/ - Image of the Schmidt plate and Cassegrain telescope taken from their respective Wikipedia pages: https://en.wikipedia.org/wiki/Schmidt%E2%80%93Cassegrain_telescope https://en.wikipedia.org/wiki/Schmidt_corrector_plate Do you like what I do and want to support it? I'v recently started a patreon page: https://www.patreon.com/huygens_optics Did I forget a reference? Objections? Please let me know and I will set it straight and add a link.