Patent ID: 8974093
Filing Date: 2015-03-10
Classification: F21S,F21V,F21W

Abstract:
1. A light casing, comprising: two lateral fastening members, each lateral fastening member having a first surface, a second surface, and an orifice disposed near the center of the lateral fastening member, a positioning slot disposed on the periphery of the orifice on the second surface, and a sliding slot disposed on the periphery of the positioning slot on the second surface; a fixed case having an arc-shaped cross-section, a concave opening surface, a convex surface, and two opening ends, and each of the two opening ends of the fixed case fixedly disposed in the positioning slot of one of the lateral fastening members; and a movable case having an arc-shaped cross-section, a concave opening surface, a convex surface, and two opening ends, and each of the two opening ends of the movable case movably disposed in the sliding slot of one of the lateral fastening members; and wherein when the movable case covers the convex surface of the fixed case, the concave opening surface of the fixed case is uncovered, and when the fixed case and the movable case form a covered space, the concave opening surface of the fixed case is covered by the movable case.