Are these lenses safe for DIY HMD?
Posted: Sun May 11, 2014 8:10 am
Hi Everybody!
Awesome forum! I've been working on a DIY HMD and would like to contribute to the community after ensuring these lenses are safe to use...
I purchased the following lenses because the diameter reduced vignetting... They seem to work fine, however I noticed the structure is different than say the Oculus (entirely flat on one side and convex on the other).
http://www.aliexpress.com/snapshot/6008909234.html
1. How can you test to see if these lenses are safe to use?
2. The current design has the lenses approximately 40mm away from the display (and ~15mm away from eyes), whereas the specifications say the focal length is 63mm. What numbers should be used to calculate FOV, etc?
Thanks for your help! Enjoy the rest of your weekend!
Awesome forum! I've been working on a DIY HMD and would like to contribute to the community after ensuring these lenses are safe to use...
I purchased the following lenses because the diameter reduced vignetting... They seem to work fine, however I noticed the structure is different than say the Oculus (entirely flat on one side and convex on the other).
http://www.aliexpress.com/snapshot/6008909234.html
1. How can you test to see if these lenses are safe to use?
2. The current design has the lenses approximately 40mm away from the display (and ~15mm away from eyes), whereas the specifications say the focal length is 63mm. What numbers should be used to calculate FOV, etc?
Thanks for your help! Enjoy the rest of your weekend!