| 摘要 |
PURPOSE: A flat lamp is provided to increase optical efficiency by diffusing light of a light source to various angles. CONSTITUTION: An external lamp case(1) is formed as a right angle hexahedron and is formed by a plastic board. Multiple reflection plates(2) diffuse light emitted from an inner light source of a lamp. An upper unit and a lower unit of the multiple reflection plates are determined as 4cm based on a cut surface. A semi-transparent glass cover(5) is installed at a lower end of the lamp. |
