Sun reflecting devices in High Rise Buildings

[rornew]

Are far as i can tell these are hard to find or simply dont exist in a huge number. I would appreciate any help in finding precedents under this title to include sun scoops, Light pipes, light shelves and prismatic glazing.

I have already found HSBC, Hong Kong and Crystal Island, Moscow (new Foster and Partners)

[lekizz]

I believe Foster's Reichstag conversion in Berlin and Richard Rogers' Senedd Building in Cardiff use light scoops/light wells.

I have been working on a live project recently for a prison that is using light tubes (from solatube.com) to get daylight over 20m into the building. Though after travelling that far the light is not very bright at all, to say the least!

[rornew]

Yes ive looked at both but neither are high rise.

[lekizz]

Idon't see any mention of high rise in your question!

Are you the guy/gal that wants to grow farmyard crops in a block of flats?

[rornew]

It says it in the title of the post!

No im not, havnt been on here for months.

[nanrehvasconez]

Heliostats are scientific instruments that track the progress of the sun across the heavens. Simple heliostats use an ordinary clockwork mechanism to follow the sun, while more complex heliostats track the sun directly by sensing its position in the sky or incorporate microprocessing software that compansates for the angle of the sun throughout the solar year. The word heliostat is a compound of the Greek word for 'sun', helios, and the word for 'still' or 'stationary', stat, and it appears to have been coined in the mid 18th century. As with many scientific inventions from that period, a number of inventors have been credited for the device, making it unclear who is actually responsible for it.

Heliostats are most commonly used to position mirrors and reflect sunlight continuously in a specific direction, although strictly speaking, heliostat refers to the positioning device and not the mirror. The most frequent use of heliostats in the 18th century, when they became widespread, was to position mirrors for astronomy observations and optical experiments. In the 20th century, arrays of mirrors positioned on heliostats were used in a range of mostly scientific applications, including electricity generation, astronomy, ARCHITECTURE, and solar lighting.

An organic example of the heliostat exists in the sunflower, which is known to track the movement of the sun across the sky to maximize exposure. Mechanical heliostats work in a similar way, and usually with the same end goal of harnessing the sun's energy. The most basic heliostat involves a pivoting clockwork mechanism with a mirror positioned on it to follow the sun's progress across the sky. In a laboratory setting, where the device can be moved to compensate for changes in the sun's angle, this type of device is adequate. More complex automated heliostats use software and sensors to orient themselves in relationship to the sun. Companies that sell heliostats to provide architectural accents or integral lighting solutions usually offer them with embedded microprocessors capable of calculating solar positioning algorithms.

Massive arrays of mirrors mounted on heliostats reflecting light to specific locations and distribution systems can be found in high rise buildings, on solar energy farms, as architectural effects on structures all over the world, and in many astronomy laboratories. Use of heliostats in architecture is growing, as sunlight is effective, free, and pleasing ambient lighting. In labs, heliostats are used for solar observations, including measurements of solar radiation, as well as for energy production, heat generation, and other applications. Many labs also have siderostats, designed for tracking stars other than the sun.

[nanrehvasconez]

The March 17th, 08 issue of Newsweek magazine, under PROJECT GREEN has a reference to heliostatic devises used to provide sunlight to a park. Heliostats are used in Europe.

[rornew]

Yeah, they do it in battery park, New York as well

[xtiank]

http://www.huvco.com/


here is something I came across. I will be using the high performance daylighting system. There fiber optic system might work for what you are trying to do. assuming you can put the collectors on the roof and run the fiber optic to each room in the high rise

[Antisthenes]

i think this is what you want

http://www.ciralight.com/ciralightProducts.php

for many reasons

[Architorture]

i believe there is one on a building in boston that has a large central atrium which it reflects light down into... i can't think of its name at the moment... its sorta ugly looking... i'll try to remember it and post it up

[Antisthenes]

does it have a built in GPS and reflector to maximize the sun on early and late hours?

[john latham]

NORMAN FOSTER USED THEM ON THE BIG BANK IN HONG KONG