Natural Light ... via Fibre Optics

[kurohinge1]

Japanese condo residents to get sunlight via optical fibre system, report says

TOKYO (AP) - Residents of a Japanese condo are set to receive sunlight via a lighting system that transmits natural light from a rooftop lens to their rooms, a news report said Wednesday.

Residents demanded the 14-storey condo in central Tokyo be fitted with the system after finding that a 12-storey building would be erected only several metres away, blocking their access to sunlight, according to the daily Sankei newspaper.

"We are united in our desire for sunlight," the paper quoted resident Tadashi Ueda as saying.

The lighting system, developed by a consortium of engineering companies with government support, transmits sunlight captured by a large rooftop lens through an optical fibre system.

Harmful ultraviolet rays are removed before the light enters the condos, according to the consortium's website . . . more

You can read more about the technology and some products here: Sunlight-Direct

[GuyJean]

You can read more about the technology and some products here: Sunlight-Direct

That's awesome.. But does the hue of the light change like the guy explains at the end of this clip?
http://www.sunlight-direct.com/HSL%20on%20Discovery.wmv

Would the light be red during the evening sunset?

GJ

[kurohinge1]

. . . Would the light be red during the evening sunset?

I don't see why not.

You could also have a lot of fun sneaking up there & popping different colour filters over the parabolic dish during the day!

And I wonder if it would preserve shape/shadow-filters? If so, some residents could find interesting shapes being projected from their lights!

[Yorik]

Depending on the refractive index of the internal core, the absorbtion rate of the cladding, the size of the core, it's intended wavelength transmisivity and a lot of other cool (if your into light and light transmission through mediums) parameters, it may be possible to project shadows. Colors are another story all together..

I work fit Fibre Optic too much hey!!!