Apparatus for collecting, distributing and utilizing solar radiation

• US 4,411,490 A
• Filed: 08/18/1980
• Issued: 10/25/1983
• Est. Priority Date: 08/18/1980
• Status: Expired due to Term

• Current Assignee: Maurice Daniel
• Original Assignee: Maurice Daniel
• Inventors: Daniel, Maurice
• Primary Examiner(s): Lee, John D.
• Assistant Examiner(s): Gonzalez, Frank
• Application Number:
  US06/178,784
• Time in Patent Office: 1,163 Days
• Field of Search: 350/96.10, 350/96.15, 350/96.16, 350/96.18, 350/96.19, 350/96.20, 350/96.24, 350/96.28, 350/258, 350/259, 350/260, 350/262, 350/265, 362/32, 126/440, 126/441
• US Class Current: 126/648
• CPC Class Codes: F21S 11/00 Non-electric lighting devices or systems using daylight roofs with sky-light opening E04D13/03; sun blinds for windows with means for redirecting light onto ceiling of a room E06B9/00; hybrid lighting devices combining artificial and natural light F21S19/00; solar heat collectors F24S; solar cells or solar cell modules H01L31/00
• CPC Class Codes: F24S 23/12 Light guides
• CPC Class Codes: F24S 23/30 with lenses
• CPC Class Codes: G02B 6/0005 the light guides being of the fibre type G02B6/0003 takes precedence
• CPC Class Codes: H01L 31/0543 comprising light concentrating means of the refractive type, e.g. lenses
• CPC Class Codes: H01L 31/0547 comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
• CPC Class Codes: Y02E 10/40 Solar thermal energy, e.g. solar towers
• CPC Class Codes: Y02E 10/52 PV systems with concentrators
• CPC Class Codes: Y10S 385/90 Solar collector or transmitter

Abstract

The apparatus for collecting, distributing and utilizing solar radiation includes a solar collection panel (24) having an array of solar gathering cells (1, 37) which provide radiation to a light collecting unit (3, 4, 39). This light collecting unit (3, 4, 39) provides radiation as a single beam to a lens system (5, 7) which provides a coherent beam to a lightpipe (8). This beam is then directed to use units such as a light to electricity converter (100, 154), heat distributing elements (202, 213, 230, 244, 270) and light distributing elements (322, 336, and 348).

Claims

1. A panel structure for collecting and distributing electromagnetic radiation, said panel structure comprising:

(a) a radiation gathering means for gathering electromagnetic radiation incident thereon and for transmitting electromagnetic radiation so gathered;

(b) light collection chamber means positioned to receive the electromagnetic radiation transmitted from said radiation gathering means, said radiation gathering means including a plurality of cell structures each having a focusing means for focusing electromagnetic radiation incident thereon toward said light collection chamber means, the exterior surface of said light collection chamber means including at least one optical window positioned relative to each said cell structure such that the electromagnetic radiation focused by each said focusing means toward said light collection chamber means passes through said optical window to be received by said light collection chamber means;

(c) reflecting means mounted within said light collection chamber means for redirecting the electromagnetic radiation received by said light collecton chamber means; and

(d) light trap means for capturing the electromagnetic radiation redirected by said reflecting means and for conducting the electromagnetic radiation so captured away from said light collection chamber, said light trap means including at least one transparent entrance window means positioned along the interior surface of said light collection chamber means to enable the electromagnetic radiation redirected by said reflecting means to enter said light trap means.

2. A panel structure as set forth in claim 1, wherein said light trap means further includes a transparent exit window means positioned at a point removed from said transparent entrance window means to permit radiation captured and conducted from said light collection chamber means by said light trap means to escape from said light trap means.

3. A panel structure as set forth in claim 2, including a concentrating means for reducing the angular dispersion of electromagnetic radiation escaping from said transparent exit window means.

4. A panel structure as set forth in claim 3, wherein said concentrating means includes at least one series of lenses.

5. A panel structure as set forth in claim 3, wherein said concentrating means includes a first series of lenses which reduce the angular dispersion of electromagnetic radiation escaping from said transparent exit window means to form a coherent beam and a second series of lenses which receive said coherent beam and further reduce the angular dispersion of the electromagnetic radiation contained therein to focus said coherent beam toward a predetermined point.

6. A panel structure as set forth in claim 5, including a lightpipe means for receiving said coherent beam from said concentrating means and for conducting electromagnetic radiation contained in said coherent beam away from said panel means.

7. A panel structure as set forth in claim 1, wherein each said focusing means includes at least one lens element.

8. A panel structure as set forth in claim 7, wherein said lens element is a Fresnel lens.

9. A panel structure as set forth in claim 7, wherein each said focusing means includes two lens elements.

10. A panel structure as set forth in claim 1, wherein said plurality of cell structures are arranged in a matrix array across the top of said light collection chamber means and said top includes a corresponding plurality of optical windows respectively formed beneath each of said cell structures.

11. A panel structure as set forth in claim 10, including a mirrored surface extending between each said focusing means and each said optical window.

12. A panel structure as set forth in claim 11, wherein each said mirrored surface is constructed as a six-sided pyramidal mirror.

13. A panel structure as set forth in claim 1, wherein all of the interior surfaces of said light collection chamber means except said transparent entrance window means are covered with a mirrored coating.

14. A panel structure as set forth in claim 1, wherein said light trap means includes an interference film means for dividing the electromagnetic radiation conducted away from said light collection chamber by said light trap means into at least visible and infrared components.

15. A panel structure for collecting and distributing electromagnetic radiation, said panel structure comprising:

(a) a radiation gathering means for gathering electromagnetic radiation incident thereon and for transmitting the electromagnetic energy so gathered;

said radiation gathering means including lens means for collecting radiation over a wide angular range and focusing the radiation so collected into a narrow beam and optical window means positioned to receive said narrow beam of radiation, said optical window means including an aperture bounded by curved mirror surfaces diverging outwardly from said aperture toward said lens means;

(b) and light transmitting means positioned to receive said beam of radition from said optical window and operating to transmit said radiation as a single beam.

16. The panel structure of claim 15, wherein said light transmitting means includes an elongated optical fiber having one end positioned adjacent said aperture.

17. The panel structure of claim 15, wherein said light transmitting means includes light collection chamber means positioned to receive electromagnetic radiation from said aperture, and reflecting means mounted within said light collection chamber means for redirecting the electromagnetic radiation received by said light collection chamber means.

18. A panel structure for collecting and distributing electromagnetic radiation, said panel structure comprising:

(a) a radiation gathering means for gathering electromagnetic radiation incident thereon and for transmitting the electromagnetic energy so gathered;

(b) light collection chamber means positioned to receive the electromagnetic radiation transmitted from said radiation gathering means;

(c) reflecting means mounted within said light collection chamber means for redirecting the electromagnetic radiation received by said light collection chamber means, said reflecting means including a plurality of conically shaped mirrors; and

(d) light trap means for capturing the electromagnetic radiation redirected by said reflecting means and for conducting the electromagnetic radiation so captured away from said light collection chamber, said light trap means including at least one entrance window means positioned along the interior surface of said light collection chamber means to enable the electromagnetic radiation redirected by said reflecting means to enter said light trap means.

19. A panel structure as set forth in claim 18, wherein said conically shaped mirrors are right angle cone mirrors having a 90°

apex angle.

20. A panel structure as set forth in claim 18, wherein the surfaces of said conically shaped mirrors as viewed in cross-section are comprised of parabolas.