Forum Discussion
What is the angular resolution of the DK2?
I've seen people say anywhere from just under 8 to 9 pixels/degree, and that it is a mostly uniform angular resolution across the FOV. Where does this number come from? If I try to calculate it t...
"jamesj" wrote:
I know they use a 10x magnification aspheric lens.
No, 10X is just a speculation considering the size of the screen and the expected FOV. Oculus VR has never advertised the magnification of the lenses.
"jamesj" wrote:
Assuming the eye is ~2" away from the screen, the angular resolution of each pixel without a lens would be 4.4301 Minutes. Magnify that by 10x and you get 44 minutes per pixel, or 1.36 pixels/degree.
It doesn't work like that. To calculate the FOV correctly you need to know the surface profile of the lenses - not only the magnification - and you need to use ray-tracing with the correct equations for aspheric surfaces taking into account the refractive index of the lens.
Or you can simply launch the Oculus demo, press the spacebar to see the calculated FOV, take a screenshot to calculate the percentage of the display that is used and calculate the pixels per degree with that.