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Optical combiners and transparent mirrors

A project log for Smart glasses: Notifications and heart-rate

(Inspired by work from Alain Mauer)

virgilius1995Virgilius1995 02/01/2019 at 11:270 Comments

Just a simple update. I hope to be ordering my initial hardware this weekend and am also looking into some alternatives to a prism. I've seen some work done with a sheet of transparent material for the actual display to eye but have been avoiding this as these setups usually look a bit clunky to me and more that that I'm worried about the visibility of the text when in strong sunlight. This has led me to a couple of articles on semi transparent mirrors. Any advice in material choice will be appreciated. I will link what I've been looking at.

Also I wanted an opinion on wether or not its worth getting something like the amazon link or if its fine to use some normal cut acrylic maybe with a film on it?

Optical design idea:

Articles:

http://www.tinmith.net/wayne/thesis/piekarski-ch2-background.htm

https://www.nature.com/articles/s41598-017-03117-w

https://medium.com/@RDelly/how-augmented-reality-headsets-work-diving-into-different-optical-designs-50d6240933ef

https://www.kguttag.com/2016/10/21/armr-optics-for-combining-light-for-a-see-through-display-part-1/

https://www.amazon.com/12-Acrylic-See-Through-Mirror/dp/B017ONH3EG/ref=sr_1_3?ie=UTF8&qid=1549020001&sr=8-3&keywords=transparent+mirror

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