| 摘要 |
PURPOSE: A cover fixing unit of a lamp and a manufacturing method thereof are provided to enable a user to identify an object at light by forming a noctilucent object of various colors and patterns with transparent acryl. CONSTITUTION: A fixing nut(11) fixes a cover to a body of a lamp. A noctilucent object(12) has various colors and patterns in transparent acryl. The noctilucent object is visible through the nut body. A bolt groove(13) is formed in the upper center of the nut body. The nut body is circular, elliptical, or hexagonal. The outside of the nut body has a sawtooth shape.
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