Night lighting device for engineering construction

The utility model discloses a night lighting device for engineering construction, which comprises a shell, a luminous body, a convex lens and a diffraction piece, the inner surface of the shell is covered with a reflective coating, the luminous body and the convex lens are both arranged in the shell...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHOU LIGANG, DING ZHONGMING, ZHANG FENG, WU HAIHAI, HU YEWEI, LI NING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS LIGHTING MECHANICAL ENGINEERING STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a night lighting device for engineering construction, which comprises a shell, a luminous body, a convex lens and a diffraction piece, the inner surface of the shell is covered with a reflective coating, the luminous body and the convex lens are both arranged in the shell, the periphery of the convex lens is fixedly connected with the inner surface of the shell, and the diffraction piece is arranged on the outer surface of the shell. The diffraction sheet covers the opening of the shell; the convex lens is positioned in an area between the luminous body and the diffraction sheet; the diffraction sheet is provided with a light hole, and the opening width of the light hole is 2-3 mm. The night lighting device for engineering construction has the advantages that the light utilization rate can be effectively improved, the lighting range is enlarged, and the number of arranged lamps is reduced; illuminating light rays can be more uniform, and adverse accidents caused by dazzling light r