WO2002055927A3 - Surface with angularly dependent light transmission - Google Patents

Surface with angularly dependent light transmission Download PDF

Info

Publication number
WO2002055927A3
WO2002055927A3 PCT/IL2002/000019 IL0200019W WO02055927A3 WO 2002055927 A3 WO2002055927 A3 WO 2002055927A3 IL 0200019 W IL0200019 W IL 0200019W WO 02055927 A3 WO02055927 A3 WO 02055927A3
Authority
WO
WIPO (PCT)
Prior art keywords
window
transmission
angularly dependent
transmission characteristics
light transmission
Prior art date
Application number
PCT/IL2002/000019
Other languages
French (fr)
Other versions
WO2002055927A2 (en
Inventor
Rami Kalfon
Original Assignee
Pasit Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pasit Ltd. filed Critical Pasit Ltd.
Priority to AU2002219491A priority Critical patent/AU2002219491A1/en
Publication of WO2002055927A2 publication Critical patent/WO2002055927A2/en
Publication of WO2002055927A3 publication Critical patent/WO2002055927A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S11/00—Non-electric lighting devices or systems using daylight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2417—Light path control; means to control reflection

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Optical Elements Other Than Lenses (AREA)

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.
PCT/IL2002/000019 2001-01-09 2002-01-08 Surface with angularly dependent light transmission WO2002055927A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002219491A AU2002219491A1 (en) 2001-01-09 2002-01-08 Surface with angularly dependent light transmission

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL140816 2001-01-09
IL14081601A IL140816A0 (en) 2001-01-09 2001-01-09 Surface with angulary dependent light transmission

Publications (2)

Publication Number Publication Date
WO2002055927A2 WO2002055927A2 (en) 2002-07-18
WO2002055927A3 true WO2002055927A3 (en) 2003-02-13

Family

ID=11075019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2002/000019 WO2002055927A2 (en) 2001-01-09 2002-01-08 Surface with angularly dependent light transmission

Country Status (3)

Country Link
AU (1) AU2002219491A1 (en)
IL (1) IL140816A0 (en)
WO (1) WO2002055927A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2538013A1 (en) * 2011-06-21 2012-12-26 Solar Campus Gmbh Angle-selective sunlight dimming on a building exterior

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519675A (en) * 1982-04-18 1985-05-28 Bar Yonah Yitzchak Selectively light transmitting panel
US4773733A (en) * 1987-11-05 1988-09-27 John A. Murphy, Jr. Venetian blind having prismatic reflective slats
EP0685681A2 (en) * 1994-05-31 1995-12-06 SANYO ELECTRIC Co., Ltd. Solar lighting apparatus and controller for said apparatus
US5551042A (en) * 1993-04-26 1996-08-27 Minnesota Mining And Manufacturing Company Structured films and use thereof for daylight illumination
WO1997014982A1 (en) * 1995-10-18 1997-04-24 Nobuo Oyama Light-diffusing panel and window shade using same
EP0823645A1 (en) * 1996-08-08 1998-02-11 Werner Dr. Lorenz Window pane
US6105318A (en) * 1998-09-11 2000-08-22 Harrison; Janet Seasonally selective passive solar shading system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519675A (en) * 1982-04-18 1985-05-28 Bar Yonah Yitzchak Selectively light transmitting panel
US4773733A (en) * 1987-11-05 1988-09-27 John A. Murphy, Jr. Venetian blind having prismatic reflective slats
US5551042A (en) * 1993-04-26 1996-08-27 Minnesota Mining And Manufacturing Company Structured films and use thereof for daylight illumination
EP0685681A2 (en) * 1994-05-31 1995-12-06 SANYO ELECTRIC Co., Ltd. Solar lighting apparatus and controller for said apparatus
WO1997014982A1 (en) * 1995-10-18 1997-04-24 Nobuo Oyama Light-diffusing panel and window shade using same
EP0823645A1 (en) * 1996-08-08 1998-02-11 Werner Dr. Lorenz Window pane
US6105318A (en) * 1998-09-11 2000-08-22 Harrison; Janet Seasonally selective passive solar shading system

Also Published As

Publication number Publication date
WO2002055927A2 (en) 2002-07-18
IL140816A0 (en) 2002-02-10
AU2002219491A1 (en) 2002-07-24

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