EP1201872A3 - Vorrichtung zur Lichtumlenkung zur Beleuchtung eines Innenraumes - Google Patents

Vorrichtung zur Lichtumlenkung zur Beleuchtung eines Innenraumes Download PDF

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Publication number
EP1201872A3
EP1201872A3 EP01125174A EP01125174A EP1201872A3 EP 1201872 A3 EP1201872 A3 EP 1201872A3 EP 01125174 A EP01125174 A EP 01125174A EP 01125174 A EP01125174 A EP 01125174A EP 1201872 A3 EP1201872 A3 EP 1201872A3
Authority
EP
European Patent Office
Prior art keywords
boundary surface
light incident
boundary
curved
optical element
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP01125174A
Other languages
English (en)
French (fr)
Other versions
EP1201872B1 (de
EP1201872A2 (de
Inventor
Adolf Prof.-Dr. Goetzberger
Thomas Kuckelkorn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Publication of EP1201872A2 publication Critical patent/EP1201872A2/de
Publication of EP1201872A3 publication Critical patent/EP1201872A3/de
Application granted granted Critical
Publication of EP1201872B1 publication Critical patent/EP1201872B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Beschrieben wird eine Vorrichtung zur Lichtumlenkung sowie und -ausblendung für den stationären Einsatz bei einer transluzenten Gebäudefassade zur gezielten Beleuchtung eines Innenraumes mit wenigstens einem transluzenten optischen Element, das eine eben ausgebildete Lichteintrittsseite aufweist sowie eine Lichtaustrittsseite vorsieht, die von einer ersten gekrümmten Grenzfläche sowie zumindest von einer zweiten Grenzfläche begrenzt ist, wobei die Krümmung der ersten Grenzfläche derart ausgebildet ist, dass Lichtstrahlen, die aus einem ersten Raumwinkelbereich auf die Lichteintrittsseite auftreffen und in das optische Element einkoppeln im Wege der Totalreflexion an der ersten Grenzfläche auf den Bereich der zweiten Grenzfläche konzentriert werden und dass Lichtstrahlen, die aus einem zweiten Raumwinkelbereich auf die Lichteintrittsseite auftreffen und in das optische Element einkoppeln durch die erste Grenzfläche aus dem optischen Element austreten.
Die Erfindung zeichnet sich dadurch aus, dass die zweite Grenzfläche ebenfalls stetig gekrümmt ausgebildet ist und dass die erste und die zweite Grenzfläche nahtlos und mit einem stetigen Krümmungsverhalten aneinander anschließen.
EP01125174A 2000-10-26 2001-10-23 Vorrichtung zur Lichtumlenkung zur Beleuchtung eines Innenraumes Expired - Lifetime EP1201872B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10053095A DE10053095A1 (de) 2000-10-26 2000-10-26 Vorrichtung zur Lichtumlenkung sowie-ausblendung für den stationären Einsatz bei einer transluzenten Gebäudefassade zur gezielten Beleuchtung eines Innenraumes
DE10053095 2000-10-26

Publications (3)

Publication Number Publication Date
EP1201872A2 EP1201872A2 (de) 2002-05-02
EP1201872A3 true EP1201872A3 (de) 2003-08-27
EP1201872B1 EP1201872B1 (de) 2006-05-24

Family

ID=7661129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01125174A Expired - Lifetime EP1201872B1 (de) 2000-10-26 2001-10-23 Vorrichtung zur Lichtumlenkung zur Beleuchtung eines Innenraumes

Country Status (3)

Country Link
EP (1) EP1201872B1 (de)
AT (1) ATE327404T1 (de)
DE (2) DE10053095A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10231139C1 (de) * 2002-07-10 2003-10-16 Fraunhofer Ges Forschung Sonnenschutzvorrichtung mit einer Vielzahl von parallel zueinander orientierter Lamellen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773733A (en) * 1987-11-05 1988-09-27 John A. Murphy, Jr. Venetian blind having prismatic reflective slats
US5220462A (en) * 1991-11-15 1993-06-15 Feldman Jr Karl T Diode glazing with radiant energy trapping
EP0800035A1 (de) * 1996-04-02 1997-10-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Stationäre Einrichtung zur Abschattung des direkten Sonnenlichts bei Verglasungen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773733A (en) * 1987-11-05 1988-09-27 John A. Murphy, Jr. Venetian blind having prismatic reflective slats
US5220462A (en) * 1991-11-15 1993-06-15 Feldman Jr Karl T Diode glazing with radiant energy trapping
EP0800035A1 (de) * 1996-04-02 1997-10-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Stationäre Einrichtung zur Abschattung des direkten Sonnenlichts bei Verglasungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LORENZ W: "A glazing unit for solar control, daylighting and energy conservation", SOLAR ENERGY, PERGAMON PRESS. OXFORD, GB, vol. 70, no. 2, 2001, pages 109 - 130, XP004313798, ISSN: 0038-092X *

Also Published As

Publication number Publication date
DE50109862D1 (de) 2006-06-29
ATE327404T1 (de) 2006-06-15
EP1201872B1 (de) 2006-05-24
DE10053095A1 (de) 2002-05-16
EP1201872A2 (de) 2002-05-02

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