DE1875622U - SPECIAL FLAT CEILING AND CORNER LAMP. - Google Patents

Description

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ELECTRICAL PRODUCTS FACTORY

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Bsen / S. May 9, 1963 Description

Re: particularly flat ceiling and corner luminaires

In modern buildings, due to the low room height, the window lintels are only a few centimeters below the Ceiling led. In order to illuminate a room in the same direction as the incoming daylight, the usual Corner lights that have asymmetrical light distribution cannot be used. To this end are particularly flat, preferably angular corner lights have already been designed and are on the market.

However, these well-known flat ceiling or corner lights have the disadvantage that both the ballasts and the lamps - preferably fluorescent tubes - are the same enclosed space, since in such flat lights the amount of air in the surrounding area is relatively is small. This creates an increased ambient temperature, which affects both the operation of the fluorescent lamps as well as the maximum temperatures permissible according to the VDE regulations exceeds. In order to achieve an asymmetrical light distribution, this housing has a special one Built-in mirror.

The invention described below avoids these inconveniences. The luminaire space encompassing the fluorescent lamp is formed by a sloping, reflector-like partition separated by an open room accommodating the ballasts.

Tel.-Sa.-No. CO221) * 593111 Novalux-Gesetlscnaft · Brandenburg & Co. Bantien: Deutsche Bank AG.

Telegraph: OS882542 5 Cologne-ßraunsfelcJ · Widdersdorfer Strasse 227 Cologne-Eraunsfeld Mr, S5O3OO

Telegram: Novalux Koeln train station: Cologne-Ehrenfeld Postscheckkonto Cologne 17SS

Claims (1)

Sheet: At the same time, there are spacer cams on the top of the metal housing and on the head ends and optionally also on the Underside of the housing ventilation slots, so that there is unhindered air circulation around the device and good heat dissipation takes place. This significantly reduces the ambient temperature inside the lamp compartment and does not affect the operation of the lamps. The head ends of the previously known models are also made entirely of metal, i.e. opaque, or form a part the opaque metal housing, which means that the light emission on the side is particularly strong when arranged as individual lights with special needs. In the case of the registered model, the end tub also encompasses most of the head ends in order to also allow light to escape from the side and to enable better and more even brightening of the ceiling, etc. The inclined, reflector-like partition wall already distributes light from the window into the interior of the room to be illuminated. However, a much better asymmetrical light distribution can be achieved by that both the tub itself and the head ends are prismatic in such a way that a refraction of the light rays takes place in the desired direction to achieve more uniform lighting. Protection claims Particularly flat, predominantly angular electrical ceiling and corner luminaires with a translucent plastic cover, built-in ballasts and fluorescent tubes, characterized in that (1) the ballasts (aa) to achieve a lower ambient temperature inside the lamp room outside of the room (bb) accommodating the fluorescent lamps and the room containing the ballasts (c) is open at the top, (2) according to claim (1), further characterized in that the ballasts contained between the lamp compartment (bb) and the Room (c) attached partition wall (d) like a reflector is designed to direct the luminous flux into the utility room, (3) according to claim (1) and (2), further characterized in that the cover trough is designed prismatically in such a way that that by refraction of the light rays an asymmetrical light distribution and even ceiling illumination is achieved will, (M-) according to claims (1), (2) and (3) further characterized in that that the separate room (c) containing the ballasts has ventilation slots for better ventilation (ee) is provided on the metal part of the head ends as well as on the lower surface of the chassis, (5) according to claims (1), (2), (3) and (H) further characterized in that that on the upper, the lamp compartment shielding surface of the housing spacer cams (ff) to achieve better air circulation, especially in connection with the ventilation slots between the lamp and Ceiling are provided, (6) according to claims (1), (2), (3), (H) and (5) further characterized in that the translucent cover trough auoiTN forms part of the side head ends. NOVA -! LUX - GES,
Brandenburg S Co, IN THE