So my Thursday morning musings are on why we we need Fresnel lenses (at all)
So this is a video that describes current lenses in VR
Which is an aid to bend more light into our eye so that the close up image from a big panel becomes clear. Same principle as spectacles or contact lenses. And Fresnel cutting is to reduce weight from a normal lens but with the downside of a small sweet spot in the central region where ridges are not needed,
So is the solution to shrink the panels to the same size as the pupil so that the light emitted from it is parallel to our eyeball, we get “all” the light beamed perfectly into our eye so the image is clear which means the job of the lens is much less, maybe not needed?
I guess the panel would need to be much closer to the eye, as in almost touching it. Hmm, then eye tracking would not work as it would be occluded.
So we can now produce flexible LCD panels that bend. Is that where we will end up? With a contact lens that is really just an LCD panel?
On the flip side, is there a lighter material for lenses so we don’t need Fresnel, that would remove ridge distortion and the sweet spot too.
And finally going off on a tangent, could we fix near blindness by attaching a VR headset to somebody, it videos the real world and blasts that image into the users eyes at a 500% brighter level. Hmm, cheaper than stem cell therapy.
Ok head hurts. time for a break.