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CoeLux: Artificial Sunlight That’s Real Enough to Trick Your Camera and Brain

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Re: CoeLux: Artificial Sunlight That’s Real Enough to Trick Your Camera and Brain

#31

Post by seivan »

jkxyz wrote: post #14
jamespitts wrote: post #12

Artificial sunlight could be revolutionary if applied with scale in cities. It could enable new, far denser forms of architecture "built for people", mitigating the ill psychological effects of being without natural surroundings. The energy use would be heavy, but it might be worth the cost given the transportation energy savings and higher productivity and happiness of the city population.

Don't forget seasonal affective disorder, or just the general influence on affects that cloudy weather has. Imagine waking up to streaming sunlight every morning. I can see that making a huge change in people's lives.

It would have to produce vitamin-D (or whatever the sunlight produces when it hits your skin) in order to combat that.

Source: Me in wintertime Sweden.

Re: CoeLux: Artificial Sunlight That’s Real Enough to Trick Your Camera and Brain

#32

Post by [deleted] »

bd wrote: post #25
ipsum2 wrote: post #22

Earlier quoted context omitted.

While this is is nice, the main breakthrough of CoeLux is the simulation of Rayleigh scattering, not just a bright diffused light.

Lot of things scatter. There is probably something cheaper than $35,000 per light. Maybe milk could be used? :) http://2.bp.blogspot.com/-wyj6iHUndhg/UXpUk6HxfLI/AAAAAAAACu... http://thestandardmodel.blogspot.com/2013/04/when-i-was-chil... It feels like they charge so much not because there would be some principal engineering / technical obstacle but simply because they can. They have been the first who realized some…

[deleted]

Re: CoeLux: Artificial Sunlight That’s Real Enough to Trick Your Camera and Brain

#33

Post by contravariant »

ogig wrote: post #19
jamespitts wrote: post #12

Artificial sunlight could be revolutionary if applied with scale in cities. It could enable new, far denser forms of architecture "built for people", mitigating the ill psychological effects of being without natural surroundings. The energy use would be heavy, but it might be worth the cost given the transportation energy savings and higher productivity and happiness of the city population.

But, can we really replicate sunlight? Might sound pessimist but the sun is a star, 1AU away, with a huge mass compared to earth, and It's the energy source for life here. Seems like a very long shot aspiring to create an artificial replacement for that, even for the narrow objective of tricking our bodys. There must be some scientific knowdlegde regarding this that I ignore.

Like you said, the sun is 1 AU away, we're getting a fraction of its energy. Actually that fraction is still way beyond what were able to generate, and will remain that way for quite some time. However, we only need to illuminate the part of the earth with humans in it, which is a more manageable scale.

What we consider sunlight is essentially the light emitted by any object at 6000K, which is reasonably easy to achieve but somewhat difficult to contain. And actually mimicking the sun is usually not the best method (for one, the unfiltered UV would be very unhealthy). It's possible to approximate the visible part of that light though, and we're gradually getting better at it.

Re: CoeLux: Artificial Sunlight That’s Real Enough to Trick Your Camera and Brain

#34

Post by deelowe »

bd wrote: post #20

Somebody on reddit made a cheap do-it-yourself version for their basement office for $150 (using LED lights for plants): http://imgur.com/a/r31Gb While definitely not the same, there should be an opportunity for something costing less than $35,000 while still getting closer. For example here is DIY 90,000 lumen flashlight that supposedly cost $250-350: https://www.youtube.com/watch?v=-JVqRy0sWWY&t=3m40s Using 10 of t…

While nice and all, this is something totally different.

Re: CoeLux: Artificial Sunlight That’s Real Enough to Trick Your Camera and Brain

#35

Post by sneak »

seivan wrote: post #31
jkxyz wrote: post #14

Earlier quoted context omitted.

Don't forget seasonal affective disorder, or just the general influence on affects that cloudy weather has. Imagine waking up to streaming sunlight every morning. I can see that making a huge change in people's lives.

It would have to produce vitamin-D (or whatever the sunlight produces when it hits your skin) in order to combat that. Source: Me in wintertime Sweden.

Concurrent orally-administered vitamin D would achieve the same effect.

Re: CoeLux: Artificial Sunlight That’s Real Enough to Trick Your Camera and Brain

#36

Post by sneak »

marchica wrote: post #7
infectoid wrote: post #3

The article is a year old. Does anyone know where the tech is actually at now? I was expecting this to be slightly more common by now.

Now prices have fallen. We have installed about 50 systems till now

Is there a list somewhere of the publicly-accessible ones? I would love to go and see it in person.

Re: CoeLux: Artificial Sunlight That’s Real Enough to Trick Your Camera and Brain

#39

Post by danieltillett »

sonium wrote: post #24

Sadly they write little substantial about the internal construction principle so I'm making an educated guess: Based on the pictures one can see that relatively hard shadows are created as expected by a point-like light source (like a far away sun). Also in the movie it can be seen that the 'sun' moves with the camera when the camera moves. The hard shadows would be created if all light emitting the 'window' are almo…

This is because it is all in the patents [1].

1. http://patents.justia.com/inventor/paolo-di-trapani

Re: CoeLux: Artificial Sunlight That’s Real Enough to Trick Your Camera and Brain

#40

Post by knappe »

haddr wrote: post #28
bd wrote: post #20

Somebody on reddit made a cheap do-it-yourself version for their basement office for $150 (using LED lights for plants): http://imgur.com/a/r31Gb While definitely not the same, there should be an opportunity for something costing less than $35,000 while still getting closer. For example here is DIY 90,000 lumen flashlight that supposedly cost $250-350: https://www.youtube.com/watch?v=-JVqRy0sWWY&t=3m40s Using 10 of t…

Can LED bulbs already provide a light quality comparable with the light of the sun?

LEDs are used to grow many varieties of coral, with a lot of success. The article below talks about many of the factors you have to consider when emulating sunlight.

https://orphek.com/led-light-chose-aquarium/

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