EP 0469031 B1 19940921 - IMPROVEMENT IN FIXTURES FOR LUMINOUS TUBES.
Title (en)
IMPROVEMENT IN FIXTURES FOR LUMINOUS TUBES.
Title (de)
VERBESSERUNGEN AN BEFESTIGUNGEN FÜR BELEUCHTUNGSRÖHREN.
Title (fr)
AMELIORATION RELATIVE A DES ARMATURES D'ECLAIRAGE POUR DES TUBES FLUORESCENTS.
Publication
Application
Priority
- NO 891443 A 19890407
- NO 9000061 W 19900406
Abstract (en)
[origin: WO9012245A1] 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).
IPC 1-7
IPC 8 full level
F21V 11/02 (2006.01)
CPC (source: EP)
F21V 11/02 (2013.01)
Citation (examination)
- EP 1159534 A1 20011205 - UNITED TECHNOLOGIES CORP [US]
- DE 11984108 U
Designated contracting state (EPC)
AT BE DE DK GB SE
DOCDB simple family (publication)
WO 9012245 A1 19901018; AT E112030 T1 19941015; AU 5431290 A 19901105; DE 69012812 D1 19941027; DE 69012812 T2 19950216; EP 0469031 A1 19920205; EP 0469031 B1 19940921; FI 914719 A0 19911007; NO 167944 B 19910916; NO 167944 C 19911227; NO 891443 D0 19890407; NO 891443 L 19901008
DOCDB simple family (application)
NO 9000061 W 19900406; AT 90906378 T 19900406; AU 5431290 A 19900406; DE 69012812 T 19900406; EP 90906378 A 19900406; FI 914719 A 19911007; NO 891443 A 19890407