cancel
Showing results for 
Search instead for 
Did you mean: 

New type of Picoprojecter

MrMonkeybat
Explorer
http://spectrum.ieee.org/consumer-electronics/audiovideo/holographic-displays-coming-to-smartphones
Ignoring most of the article which is rather speculative or limited in application I notice this:
Each of the 1 million pixels on Ostendo’s little chip consists of a layer each of red, green, and blue micro-LEDs (or lasers, in some iterations) sitting on top of its own small silicon image processor. The pixels are between 5 and 10 micrometers on a side. By modulating the power to the individual layers, each pixel can send out any color of light in a thin, focused beam.


An array of individually controllable lasers unlike a micro mirror array with sequential color could be an ideal projector for HMDs. With laser light it would only take a single lens to project the ideal distortion onto the ideal concave screen allowing the eye lenses to be simple cheap spherical lenses without aberration conforming to the focal fields Petzval cuvature.

A holographic screen could direct the light towards the eye lens saving power and with a small grain size avoiding speckle.
0 REPLIES 0