[04:45]

Some more quick updates from research. This was going to just be a comment in the previous log, but I thougt that I could use the better formatting options of a full log:

• I've got an idea for a design that would 
  • 1) fit with the new cuboid design language, 
  • 2) will fit the 2.9 or 3.2 inch screens whilst hopefully not looking unreasonably bulky (a.k.a like it's part of the design and not just a hilarious looking block ontop of the hat).
  • 3) That an even number of reflections are taken from the screen to the eyes. I looked into it, and flipping the images sent to the screen (e.g. for a teloprompter) isn't a standard GPU feature.
  • The design is inspired from the phone seen below as a texture to a square prizm going across the top (and slightly angled). I'll make a render eventually, but first I need to have some idea of optical requirements before I start.

• I've found out that aspherical lenses don't have strange optical issues like chromatic abberation (colour splitting) at the edges like the simple standard spherical ones do. Issue is, aspherical's are much less easy to find.
• Images focused at infinity do not produce an image. It will have to be refocused after the beam splitter.
• So far, the only aspherical (fresnel) lenses I've found (about 10 mins before starting this log) are these ones:
  • https://www.edmundoptics.co.uk/p/23quot-x-23quot-13quot-fl-aspheric-fresnel-lens/2429/
  • All the fresnels in the range are either £27 or £29, regardless of size.
  • When I wake up again, I'll start scanning their solid lens range, as those may offer a clearer image than fresnel.
• Due to the size of the 1440p panels, and their need for at least 1 lens to collimate (make parallel) the light for each, it's likely something that I'll skip on persuing. The result is some endgame specs, but it sure looks like I need to be pulling off some engame plays to get such a solution.
• 2160 is still likely to be a consideration because everything seems straightforward for it. It's also a similar size to the 2880, so it's very well possible that I could design for the 2880 in mind and then have 2 SKUs of TyMist. 
  • I might feel that 1620x2160 is a tablet being aircast to a projector, but that's still more pixel work area than the many 1080p laptops being sold today.
  • The seller of the 2880 said that the board is still under development though, so I'll have to see if that ever comes out if I ever get to the point where I could buy and install it.
• I wouldn't say that the 2560 is out, but I do like the sound of upgrade paths (see #SecSavr Suspense [gd0105])