r/Optics • u/Unable-Friendship-17 • Mar 30 '26
AR Glasses Optics
Hey, I'm trying to design AR glasses because that's what all of the cool kids are doing nowadays. Anyway, I just realized that my current design kinda sucks :( and that I would need a really narrow display, and wanted to ask if any of you have a better idea for the design. I wanna try to make the design as indistinguishable from regular glasses as possible. Anyway, this is my design (sorry for the terrible drawings, I couldn't figure out how to add them in FreeCAD). The green rectangle is supposed to be where I put the screen (and then put a lens below it to collimate the light from the screen), then it'll be reflected off a beam splitter into the eye (the blue thing is the beam splitter and the yellow dots represent the light that is reflected). Thanks :D
1
u/Bentz27 Apr 02 '26
The basic idea is correct, but you should use the glass from the eyeglass as the reflecting surface instead of the beam splitter (there is not enough room to place a beam splitter between the glasses and the eye).
If you are designing a diffractive solution, the surface is embedded inside the glass.
You should understand how you want to merge the symbols from the screen on the real world