FI914719A0 - FOERBAETTRINGAR I FASTSAETTNINGAR FOER LYSROER. - Google Patents

FOERBAETTRINGAR I FASTSAETTNINGAR FOER LYSROER.

Info

Publication number
FI914719A0
FI914719A0 FI914719A FI914719A FI914719A0 FI 914719 A0 FI914719 A0 FI 914719A0 FI 914719 A FI914719 A FI 914719A FI 914719 A FI914719 A FI 914719A FI 914719 A0 FI914719 A0 FI 914719A0
Authority
FI
Finland
Prior art keywords
fins
pair
lysroer
fastsaettningar
foerbaettringar
Prior art date
Application number
FI914719A
Other languages
Finnish (fi)
Inventor
Per Kamsvaag
Original Assignee
Ifa Electric As
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 Ifa Electric As filed Critical Ifa Electric As
Publication of FI914719A0 publication Critical patent/FI914719A0/en

Links

Classifications

    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type

Abstract

A fixture device for luminous tubes, preferably of the ceiling-mounted kind, is equipped with a new type of transverse lamellas or fins (6) on the underside for shielding and distribution of the light from said fixture. The transverse fins (6) are constructed as pairs of single fins, with a mirror symmetrical design about a center plane for each pair. The distance between two single fins (6) in one pair is smaller than the distance from a single fin to the nearest single fin in the adjacent pair. The fins (6) are preferably equipped with outer reflection surfaces (7) with parabolic curvature, and the inner reflection surfaces in a pair are divided in two areas in such a manner that the lower area (9) of the inner reflection surface has the same curvature type as the outer reflection surface (7).
FI914719A 1989-04-07 1991-10-07 FOERBAETTRINGAR I FASTSAETTNINGAR FOER LYSROER. FI914719A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO891443A NO167944C (en) 1989-04-07 1989-04-07 DEVICE FOR LIGHT RANGE LIGHT
PCT/NO1990/000061 WO1990012245A1 (en) 1989-04-07 1990-04-06 Improvement in fixtures for luminous tubes

Publications (1)

Publication Number Publication Date
FI914719A0 true FI914719A0 (en) 1991-10-07

Family

ID=19891912

Family Applications (1)

Application Number Title Priority Date Filing Date
FI914719A FI914719A0 (en) 1989-04-07 1991-10-07 FOERBAETTRINGAR I FASTSAETTNINGAR FOER LYSROER.

Country Status (7)

Country Link
EP (1) EP0469031B1 (en)
AT (1) ATE112030T1 (en)
AU (1) AU5431290A (en)
DE (1) DE69012812T2 (en)
FI (1) FI914719A0 (en)
NO (1) NO167944C (en)
WO (1) WO1990012245A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4109492C2 (en) * 1991-03-22 2000-06-08 Parol Leuchtenkomponenten Gmbh Luminaire louvre for louvre luminaires equipped with discharge lamps
DE4243659A1 (en) * 1992-12-23 1994-06-30 Licentia Gmbh Metal grid for a lamp
NL9301557A (en) * 1993-09-09 1995-04-03 Simon Cornelis Van Putten Transverse lamella for a light box
DE69421979D1 (en) * 1993-09-09 2000-01-13 Veko Products B V Cross lamella for light box
NL9302169A (en) * 1993-12-13 1995-07-03 Simon Cornelis Van Putten Transverse lamella for a light box
NL1005610C2 (en) * 1997-03-24 1998-09-28 Veco Products B V Illuminated sign with a transverse blade.
US7128443B2 (en) * 2002-06-28 2006-10-31 Koninklijke Philips Electronics, N.V. Light-collimating system
DE102004039676A1 (en) * 2004-08-16 2006-02-23 Zumtobel Staff Gmbh grid array
NL1027815C2 (en) * 2004-12-17 2006-06-20 Lichtholland B V Lamella (52) is for a reflector (2) for a light fitting for a tube lamp and comprises two opposing main sides, an upper side and a lower side (8), all sides having a light-reflecting surface

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1984108U (en) * 1968-01-13 1968-04-25 Guenther Gubela GRID FOR ARRANGEMENT IN FRONT OF LIGHTING SOURCES.
DE3412162C1 (en) * 1984-03-31 1985-08-29 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg Elongated lamp
US6109566A (en) * 1999-02-25 2000-08-29 United Technologies Corporation Vibration-driven acoustic jet controlling boundary layer separation

Also Published As

Publication number Publication date
DE69012812D1 (en) 1994-10-27
EP0469031B1 (en) 1994-09-21
NO167944C (en) 1991-12-27
NO167944B (en) 1991-09-16
NO891443D0 (en) 1989-04-07
DE69012812T2 (en) 1995-02-16
NO891443L (en) 1990-10-08
EP0469031A1 (en) 1992-02-05
WO1990012245A1 (en) 1990-10-18
AU5431290A (en) 1990-11-05
ATE112030T1 (en) 1994-10-15

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Legal Events

Date Code Title Description
FD Application lapsed