Title:
SURFACE WITH ANGULARLY DEPENDENT LIGHT TRANSMISSION
Document Type and Number:
WIPO Patent Application WO2002055927
Kind Code:
A3
Abstract:
A window (46) with angularly dependent light transmission, provided by means of a transmissive panel (80, 82, 100, 102, 110, 112) with an array of rows of prismatic shape (48, 86) aligned at an angle to a window edge, such that the desired transmission characteristics are optimized as a function of the sun's path across the sky, thereby increasing the efficiency of the angularly dependent transmission of the window. The window can be equipped with two such panels, and the overall transmission characteristics can be tuned by optical design optimization methods to minimize the changes in transmission through the window during the course of the day, or to generally optimize desired transmission characteristics during the course of the day or as a function of seasonal changes in incident solar radiation. Furthermore, the optimization process can be utilized to reduce viewing distortion through the window.
Inventors:
KALFON RAMI (IL)
Application Number:
PCT/IL2002/000019
Publication Date:
February 13, 2003
Filing Date:
January 08, 2002
Export Citation:
Assignee:
PASIT LTD (IL)
KALFON RAMI (IL)
KALFON RAMI (IL)
International Classes:
E06B9/24; F21S11/00; F21V5/02; (IPC1-7): F21S11/00; E06B3/66; E06B9/24
Domestic Patent References:
| WO1997014982A1 | 1997-04-24 |
Foreign References:
| EP0823645A1 | 1998-02-11 | |||
| US4519675A | 1985-05-28 | |||
| US4773733A | 1988-09-27 | |||
| EP0685681A2 | 1995-12-06 | |||
| US5551042A | 1996-08-27 | |||
| US6105318A | 2000-08-22 |
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