IP Library Granted Patent US 7,843,640
Granted Patent B2
US 7,843,640 · App. 12/335,875 · Granted Nov 30, 2010

Light shelves for daylighting

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Quick Facts
Patent No.
US 7,843,640
App. No.
12/335,875
Granted
Nov 30, 2010
Kind
B2
Abstract

The embodiments disclosed herein relate to light shelves for daylighting, and more particularly to light shelves that include both a diffuser and a reflector. According to aspects illustrated herein, there is provided a light shelf that includes at least one anchor bracket suitable for attachment to a building structure; at least one support beam attached to the anchor bracket; and a plurality of light transmitting airfoil-shaped louvers each supported and positioned by the support beam at a preselected fixed profile angle, wherein each of the louvers includes a diffuser and a reflective surface.

Claims (53)

1. A light transmitting louver comprising:

a louver wherein:

a) a first curved element of the louver has a first end and a second end,

wherein the first curved element is composed of a plastic or metal;

b) a second element of the louver has a first end and a second end,

wherein the first end of the second element connects with the second end of the first curved element, and

wherein the second element includes a diffuser; and

c) a third curved element of the louver has a first end and a second end,

wherein the second end of the second element connects with the first end of the third curved element, and

wherein the third curved element includes a reflective surface,

wherein the first curved element, the second element, and the third curved element connect such that the louver forms an airfoil-shaped body.

2. The louver of claim 1 wherein the first end of the first curved element and the second end of the third curved element do not meet, resulting in an opening in the airfoil-shaped body.

3. The louver of claim 2 wherein the opening allows for the channeling of light to the diffuser of the second element.

4. The louver of claim 3 wherein the light is sunlight.

5. The louver of claim 1 wherein the reflector surface is made from an aluminum material.

6. The louver of claim 1 wherein the reflector surface is made from an acrylic plastic material.

7. The louver of claim 1 wherein the diffuser is a polycarbonate plastic material.

8. The louver of claim 1 wherein the diffuser is an acrylic plastic material.

9. A light transmitting louver comprising:

a louver wherein:

a) a first curved element of the louver has a first end and a second end, wherein the first curved element is composed of a plastic or metal, and wherein at least a portion of a surface of the first curved element includes a reflective surface; and

b) a second curved element of the louver has a first end and a second end, wherein the first end of the second curved element connects with the second end of the first curved element, and

wherein the second curved element includes a diffuser;

wherein the first curved element and the second element connect such that the louver forms an airfoil-shaped body;

wherein the first end of the first curved element and the second end of the second curved element do not meet, resulting in an opening in the airfoil-shaped body.

10. The louver of claim 9 wherein the opening allows for the channeling of light to the reflective surface of the first curved element.

11. The louver of claim 10 wherein the light reflects off of the reflective surface and channels to the diffuser of the second curved element.

12. The louver of claim 10 wherein the light is sunlight.

13. The louver of claim 9 wherein the reflective surface is made from an aluminum material.

14. The louver of claim 9 wherein the reflective surface is made from an acrylic plastic material.

15. The louver of claim 9 wherein the diffuser is a polycarbonate plastic material.

16. The louver of claim 9 wherein the diffuser is an acrylic plastic material.

17. A light shelf comprising:

at least one anchor bracket suitable for attachment to a building structure;

at least one support beam attached to the anchor bracket; and

a plurality of light transmitting airfoil-shaped louvers each supported and positioned by the support beam at a preselected fixed profile angle,

wherein each of the louvers includes a diffuser and a reflective surface;

wherein each of the light transmitting airfoil-shaped louvers comprise:

a first curved element having a first end and a second end,

wherein the first curved element is composed of a plastic or metal;

a second element having a first end and a second end,

wherein the first end of the second element connects with the second end of the first curved element, and

wherein the second element includes the diffuser; and

a third curved element having a first end and a second end,

wherein the second end of the second element connects with the first end of the third curved element, and

wherein the third curved element includes the reflective surface.

18. The light shelf of claim 17 wherein each of the light transmitting airfoil-shaped louvers comprise:

a first curved element having a first end and a second end,

wherein the first curved element is composed of a plastic or a metal, and

wherein at least a portion of a surface of the first curved element includes the reflective surface; and

a second curved element having a first end and a second end,

wherein the first end of the second curved element connects with the second end of the first curved element, and

wherein the second element includes the diffuser.

Assignments (2)
CHANGE OF NAME Recorded Nov 11, 2016
From: ALCOA INC.
To: ARCONIC INC.
Reel/Frame 040599/0309 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 10, 2009
From: HOOPER, WILLIAM J., JR.
To: ALCOA INC.
Reel/Frame 022233/0972 →