Timeline for Is it possible to use Photolithography for telescope image sensor?
Current License: CC BY-SA 4.0
16 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 21, 2021 at 13:24 | vote | accept | Ilya Gazman | ||
| Jan 21, 2021 at 12:50 | comment | added | uhoh | @IlyaGazman your question has inspired me to ask Is it possible to use something besides emulsion to directly record the image of a nighttime object using a telescope? | |
| Jan 21, 2021 at 12:39 | answer | added | Peter Erwin | timeline score: 4 | |
| S Jan 17, 2021 at 12:44 | history | bounty ended | Ilya Gazman | ||
| S Jan 17, 2021 at 12:44 | history | notice removed | Ilya Gazman | ||
| Jan 10, 2021 at 20:10 | comment | added | Ilya Gazman | @ProfRob Yes, of course, I mentioned it to show what challenges we had then and now. | |
| Jan 10, 2021 at 14:03 | comment | added | ProfRob | The data hasn't been lost. It's still there on the photographic plates. | |
| Jan 10, 2021 at 13:14 | answer | added | Steve Linton | timeline score: 5 | |
| Jan 10, 2021 at 6:00 | history | tweeted | twitter.com/StackAstronomy/status/1348147573371113472 | ||
| S Jan 10, 2021 at 3:26 | history | bounty started | Ilya Gazman | ||
| S Jan 10, 2021 at 3:26 | history | notice added | Ilya Gazman | Draw attention | |
| Jan 5, 2021 at 19:18 | comment | added | uhoh | Correct or prevent what? | |
| Jan 5, 2021 at 17:07 | comment | added | Ilya Gazman | @uhoh can you correct or prevent it? Check out my other question about the theoretical limit of image sensors | |
| Jan 5, 2021 at 16:32 | comment | added | uhoh | Even if that film has a resolution of 4,000 lines/mm, that doesn't mean one can generate 4,000 lines/mm in visible light very easily. If you have two counter-propagating 500 nm green laser beams, they will produce a standing wave intensity pattern of that spatial frequency. But that won't happen at the focal plane of a telescope. | |
| Jan 5, 2021 at 16:27 | comment | added | uhoh | What a fascinating question! Extreme Ultraviolet light, phase-shifting masks, absurdly high numerical apertures (greater than unity by definition using immersion) and fancy pattern-doubling processes during etching are what get us to the tens of nanometer and below world. I suppose you could do this with a space telescope using EUV or X-rays. Somewhere in Stack Exchange I remember writing about daguerreotypes and/or making images by projecting images on to a dish of algae, but I can't find any of that right now. | |
| Jan 5, 2021 at 15:41 | history | asked | Ilya Gazman | CC BY-SA 4.0 |