| 摘要 |
The invention concerns a light fitting consisting of a power unit (1), a light source (2) powered by the power unit, a reflector (3) connected to the light source and working with it, and a light pipe (6) connected to the reflector. The invention also concerns a procedure for the installation of such a light fitting. In the case of cold-storage rooms, for example, on account of energy costs, it is desirable to locate the power source, light source and reflector outside the cold-storage room and arrange for the light to be transmitted through the wall. In order to avoid problems connected with the leakage of heat, condensation and the formation of ice, the light fitting according to the invention is designed so that the end of the light pipe (6) facing the reflector is provided with a surrounding insulating pipe (5) and so that there is a plate (8) that is transparent to the wavelength range of the light source at the junction between the reflector (3) and the light pipe (6), which transparent plate is designed to form an airtight seal with the light pipe (6) and provide a seal with the surrounding insulating pipe (5).
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