[sonium]

I think you might oversimplify matters a bit. If the pictures are original, I think this is quite remarkable.

Let me state three properties about daylight which I think this light source addresses very well:

1) Directionality: Sunlight produces a almost parallel bundle of light, unlike most domestic light sources which produce divergent light bundles. This is because sunlight comes from a indefinitely (for that scale) far away light source. If you want to emulate this you need some kind of optics. This is also different from an extended light source, e.g. a fluorescent tube / OLED which will not produce the sharp shadow edges as seen on this light source.

2) Color: The sky is blue, however sunlight is white (unless in morning or evening, where we see some atmosphere influence). The light source seems to be able to imitate this: It looks blue, but it produces perfectly white looking light (as one can see on the surfaces that it illuminates)

3) 'Texture and feel': You can feel direct sunlight because it is warm. This is because it has a lot of energy, around 1kW/m^2. This is a lot more than what domestic light sources usually produce. Typical light sources put out up to 500 lux, while direct sunlight is more than 30000 lux.

All together it seems quite remarkable, and I would really like to know how this all works.