EP 0981010 A1 20000223 - Reflector for a luminaire, in particular for street lighting
Title (en)
Reflector for a luminaire, in particular for street lighting
Title (de)
Reflektor für eine Leuchte, insbesondere für Strassenbeleuchtung
Title (fr)
Réflecteur de luminaire d'éclairage notamment pour voie publique
Publication
Application
Priority
FR 9810535 A 19980819
Abstract (en)
The originally flat stamping, from a, typically, less than 1mm thick, highly reflective sheet, has an area (10) cut away to accommodate the base of the lamp (6). Generally triangular cutaways are provided, (20) on either side of this and, (18) in two corresponding positions at the other end. These cutaways produce an end tongue (16), between the second pair, and two side wings (22). In each side wing, smaller complementary triangular cutaways are nade, (28) in the peripheral areas and, (30) parallel to the lantern axis (SS). The apex of each cutaway excision ends in a circular hole (18a, 20a, 28a, 30a) for stress relief. The stamping acquires the required complex concave form in a suitably tooled press, the side areas (26) adjoining the lamp base remaining flat. The edges of the cutaway zones then closely coincide, providing a nearly continuous reflecting surface. The reflector is secured to the supporting lantern case through a central screw-hole (32), and its shape is maintained by contour ribs moulded transversely in the case. For fine adjustment of the reflector's optical characteristics, small plastic shims can be clipped over the ribs where necessary.
Abstract (fr)
Le réflecteur (2) de luminaire d'éclairage de voie publique présente un espace concave (4) entre un sommet (12) et un bord de périmètre inférieur (14), le réflecteur ayant des première et deuxième extrémités (8, 10) et permettant de recouvrir une source lumineuse (6) par des surfaces optiques bombées (16, 22) situées de part et d'autre d'un plan de symétrie (S), les surfaces optiques convergeant vers la première extrémité du réflecteur. Il est constitué d'une feuille pliée (100) présentant, au niveau d'au moins une partie des surfaces optiques, des éléments de surface ayant des courbures selon deux plans perpendiculaires. <IMAGE>
IPC 1-7
IPC 8 full level
F21V 7/10 (2006.01)
CPC (source: EP US)
F21V 7/10 (2013.01 - EP US); F21V 7/24 (2018.01 - EP US); F21V 7/28 (2018.01 - EP US); F21V 17/12 (2013.01 - EP); F21W 2131/10 (2013.01 - EP)
Citation (applicant)
- FR 2517805 A1 19830610 - POLAROID CORP [US]
- FR 2737281 A1 19970131 - FD ECLAIRAGE [FR]
- FR 2284820 A1 19760409 - ESQUIRE INC [US]
Citation (search report)
- [DXAY] FR 2737281 A1 19970131 - FD ECLAIRAGE [FR]
- [YA] EP 0457645 A2 19911121 - DAVID FRANCIS [FR]
- [A] AU 475784 B2 19760902
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0981010 A1 20000223; FR 2782551 A1 20000225; FR 2782551 B1 20001110
DOCDB simple family (application)
EP 99401990 A 19990805; FR 9810535 A 19980819