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Priority claimed from DE1967S0111367external-prioritypatent/DE1597992B2/de
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Publication of BE719491ApublicationCriticalpatent/BE719491A/xx
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
F21V13/02—Combinations of only two kinds of elements
F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
F21S8/00—Lighting devices intended for fixed installation
F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
F21S8/068—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension from a stretched wire
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Engineering & Computer Science
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General Engineering & Computer Science
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Non-Portable Lighting Devices Or Systems Thereof
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