Lead sunlight into your room

This is my new patent

very very good. suit to every home. even a public architecture hall. Hope all use it in your home or hall.

They call them "sun tubes" here in the U.S. They're very impressive and not terribly expensive. Look like a high wattage halogen lamp when the sun is out.

is the part widely using in usa building?

Yes, I see them fairly frequently. More in residential than commercial. They're very easy to retrofit. They're still a little new (10 years or so), but I have not seen them much in new construction yet, except in custom homes specifically designed by the homeowner. Very popular in the west and south-west parts of the US (where it's sunny 300 days of the year). Not so popular in other parts of the country.

This picture laid in my computer for 6 years until post today.

I dont know when shall I make up my mind to become it into product.

In the UK it is known as a "sun tube", being a pipe that ducts daylight into a room, often via a lens fitted on the roof and a diffuser fitted to the ceiling of the room in question. They are available commercially, and thay can be a neat and ingenious way of getting natural light into a room that does not have the capability to have a conventional window fitted into an outer wall.

Another possibility is the "borrowed light" - daylight from one room passes through a window in an interior wall into another room, in addition to having doors with glass panels between them.

Yes, in the front of it terminal there is a lens called Fresnel lens, which can be made of plastic to cut down cost. so that the light can be focus and through narrow passage into room with more energy.

Yes, we have these already and they are great. I have seen some and they are more intense per square inch than a standard skylight. Here is one product that is similar to your sketch:

http://www.gotubular.com/

They also make a version like your sketch for basements (I don't have a link handy) that projects light onto a fake window in the basement wall to give you the appearance of a ground floor in a subterranean room. Very psychologically pleasing.

I have conventional skylights, but some of the houses I looked at before buying this one in Florida has the tubular variety. One difference here than up north from where I came is the size of the skylights are much smaller than up north. One is that the light intensity here is higher and so is the heat. The second reason is hurricane resistance. Large skylights are a risk.

Thank you all that provide me with good net reference. I shall visit

I find that they are use optical fibre, not the tube I described.

the fibre is expensive for ordinary people.

and you cannt DIY.

but its flexible.