LED Lights Can Fake Daylight For Indoor-Junkies

[slaphappy]

A cousin of mine serves in the navy on board a submarine, where they spend something like 3 months at a time completely under water never reaching the surface. The ships interior lights change colors at night just so people feel some sort of change, even if it just means going from white to blue. He says it can be pretty stressful at times, very weird being so disconnected from nature for so long. I could see artificial light like this being a great stress reliever convincing people it's really daylight during daylight hours and so on.

 

[slaphappy]

[citation][nom]wtfzors[/nom]Any hydroponics farmer from the 1990s can tell you that LEDs are not a suitable substitution for sunlight. Old news. Just because some designer (I bet hes on unemployment..) put LEDs in a parallelogram array does not mean there has been any breakthrough that befits a tech news site.[/citation]It's not supposed to substitute for natural light, it's merely a psychological tool to trick your brain into thinking it's daylight, so you dont start going stir crazy.

 

[wolfram23]

Well, I guess it's interesting. Some people have mentioned really good uses for it. At the very least it's a neat effect, the sunlight on the walls in the picture looks quite real, albeit without any heat.

 

[Camikazi]

[citation][nom]Parrdacc[/nom]Neat, but what nobody has windows, skylights, or whatever? I mean with those you can get the daylight indoors for free and not have to use led lights. Still nice idea though.[/citation]
Yea that is nice until the Earth moves and the sunlight can't reach the windows anymore remember the sun is not in the same place all the time. Then there are those places that have short days or are cloudy a lot, these would be good for those places that see little sunlight.

 

[mobomofo]

WARNING! All World of Warcraft players must wear sunblock of SPF 30 or greater when exposed to this LED lighting.

I can't believe they left this warning off the original article. Everyone knows that any entity containing or resembling the words "sun" or "light" requires the WOW warning message. Is no one looking out for the safety of our WOW player community??

 

[mr_tuel]

Combine with high-power UV LEDS (not sure if they exist or not) and you can actually give indoor plants a chance to photosynthesize. If you are allergic to plants, then you can at least avoid being totally pasty-white like the typical WOW player.

 

[mr_tuel]

Also, if you could combine this idea with UV emitting LEDS, you could use this to grow 'herbs' or other indoor crops and not have substantial heat/ electric bills...

 

[kayvonjoon]

[citation][nom]Rhynn[/nom]Not when "outside" is plagued with nuclear fallout, horse-sized cockroaches, disease and zombies!!![/citation]
Man ,you've been playing too much Fallout3!!!

 

[eddieroolz]

I'm going to need this, I routinely wake up at 4pm...

 

[Guest]

i HAVE led lights and they don't seem no where near that bright.

 

[omikron48]

Cool! So I can, like, turn of the "sunlight" when I want to sleep in and not go to work?

 

[gpace]

[citation][nom]Silmarunya[/nom]Are you referring to the 'blue hazard'? If so, that only applies for blue LED's (who uses these in their house anyway?) and cool white LED's (which can easily be replaced by warm white for most applications).[/citation]
Actually, almost all the time, a white LED is a blue LED with a LED with a yellow Phosphor that changes some of the blue into yellow which mixes to what we see as white. Cool white LEDs are also more efficient then warm white because less light is converted into yellow for cool white LEDs.

Also, LEDs can create a lot of heat, even the best commercially available LEDs are 160 lumen per watt max (at low currents for a high power LED, which are not practical, most LEDs, like the ones in many cheap flashlights and bulbs are much less efficient). 100% efficient white light source is around 240 lumen per watt presuming sun spectrum, so white LEDs are even less efficient then they seem (still better then incandescents and some florescent).

Still, a nice idea, but not really new.

 

[JohnnyLucky]

I was at the hardware store a little while ago. They had "daylight" and "soft white" LED bulbs.

 

[Supertrek32]

I'm sure there are people in the far north and south that would greatly appreciate this.

Submariners, too.

 

[abbadon_34]

So I'm assuming the S.A.D. Seasonal Affective Disorder with shortly be elemintated with LED
s imitating sunlight and creating vitamin D ?

An immediate, practical application. REAL news you can UZE

 

[neiroatopelcc]

Do these just mimic the looks of sunlight during the day, or does it replace full spectrum lighting ? (giving vitamin d)
If the latter, it could be very useful for people who work at night or people who're not exposed to the real sun often enough.

 

[Chris_TC]

[citation][nom]leomoty[/nom]It's cheaper to go outside.[/citation]
Right, because the sun shines 24/7. Night time doesn't exist.

 

[jsc]

abbadon,

My wife is one of those severely afflicted with SAD. She grew up in Florida; not a problem there.

The first winter in Germany was a different story. This was back in '85 and I did not have a clue what was going on until I saw an article in the Stripes 'n Gripes, err, Stars 'n Stripes about SAD. I built a lightbox using "daylight" flourescent lights for her and she became much easier to live with.

White LED's would have been easier.

 

[jsc]

abbadon,

My wife is one of those severely afflicted with SAD. She grew up in Florida; not a problem there.

The first winter in Germany was a different story. This was back in '85 and I did not have a clue what was going on until I saw an article in the Stripes 'n Gripes, err, Stars 'n Stripes about SAD. I built a lightbox using "daylight" flourescent lights for her and she became much easier to live with.

White LED's would have been easier.

 

[klavis]

News Flash! Normal Lights Can Fake Sun Light!