Lighting arrangement for lighting the interiors of towers and tunnels

US9683723B2 · kind B2 · utility

Assignee

• Weidmüller Interface GmbH & Co. KG and PH · DE

Inventors

• Christian Heggemann · Detmold, DE
• Daniel Muether · Detmold, DE
• Michael Gerkens · Bielefeld, DE
• Hans Schlingmann · Heubach, DE

Key dates

• Filing date: Dec 5, 2013
• Grant date: Jun 20, 2017
• Expiry date: Jan 27, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F21Y2115/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A lighting arrangement for illuminating a passage, such as a wind tower or tunnel, includes at least one lighting unit having a generally rectangular base with bottom, side and end walls cooperating to define an open-topped chamber, a pair of light energy sources arranged partially in the housing chamber for directing light beams toward opposite ends of the housing, respectively, and a cover member formed of light-transmitting material, which cover member is connected with the base to extend over the light energy sources and to close the housing chamber. The cover member includes a concave dome portion containing a cavity within which the light sources are mounted. Opposite areas of the cover dome portion define collimating devices for concentrating the light beams in opposite directions longitudinally of the passage that is to be illuminated. A plurality of lighting units are longitudinally-arranged in the passage, and are electrically connected in series.