Making a Monolithic Telescope Part 1: Optical Design and Aspherics.
Video Contents: 00:00 General Intro 00:56 Spherical is easy 01:32 Aspherical is hard 01:59 Ideal lens vs. spherical surface lens 03:17 The concept of the light ray 04:47 A little optics quizz 06:21 Optimum spot size using iterative numercal analysis 07:56 Use of optical design software (Zemax) 09:45 Theory of aspherics 10:54 Conical aspherics 12:02 Polynomial aspherics and even aspheres 14:24 Numerical optimization in aspherics 15:30 Effect of introducing an aspherical surface 16:55 Optical design of monolithinc telescopes 18:23 Material choice and CTE 20:52 Classical Cassegrain configuration 22:10 Schmidt Cassegrain configuration If you want to support the production of these videos, you can now become a Patron of the channel. You can find more information on : / huygens_optics Reference to my original video on tiny monolithic telescopes: • Why is this Space Telescope so Tiny? LInk to my video on conics: • Making a Mirror with a Variable Surface S... For the record, I do not have any commercial ties to any of the companies or individuals that are linked below. Zemax page for requesting a trial license of Optic Studio: https://www.zemax.com/pages/try-optic... If you want to know more about the workflow in Zemax, the great tutorial videos by Scott Sparrold of OpticsRealm are a good start: / opticsrealm Youtube video discussing the optical design of the James Webb telescope: • Designing of the James Webb Space Telescope The Thorlabs page with aspheric lenses and the formula: https://www.thorlabs.com/newgrouppage... I used a few short clips from the following Youtube videos, assuming this use is covered under the fair use policy by placing references to the channels and links to the corresponding videos in the description. Clip from Yuri Petrunins "polishing 210mm lens": • Polishing 250 lens . Clip from Edmund Optics "How an Aspheric Lens is Made": • How an Aspheric Lens is Made Clip from Learn n hv fun "Refraction of Light Through a Glass Slab[...]: • Refraction of Light Through a Glass Slab u... Did I forget to mention you here? Let me know and I will set things straight.
Making a Monolithic Telescope Part 2: Machining Glass
Making a monolithic telescope Part 3: Figuring & Testing
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