At present, there are many materials for luminaire reflectors, which are roughly divided into two types: light/diffuse reflective materials and specular reflective materials: 1. Diffuse or diffuse reflective materials: (1) White lacquer, enamel, plastic, fabric, etc. For fluorescent lamps, enamel is used for industrial lamps, plastics and fabrics for residential Lighting; (2) Mirror materials that use diffused reflection on the surface of mirror surface to produce diffuse reflection; (3) Polished after sandblasting on aluminum surface Hair (dumb) face reflector. 2. Specular reflection material: (1) Specular reflection aluminum plate obtained after polishing the surface of high-purity aluminum plate. At present, there is an aluminum plate with a protective film on the surface, which is mostly used for fluorescent lamps and floodlighting lamps, and the total reflectivity can reach 84?87. (2) A polyester film coated with high reflectivity silver on a general aluminum plate has a reflectivity of 92 to 94%. At present, there is a factory producing aluminum-coated polyester film composite aluminum plate with a reflectivity of about 80%; (3) Vacuum-aluminizing or coating a dielectric film on the surface of glass, aluminum or plastic, so that the infrared light is transmitted/conducted through the substrate, and visible light is reflected, commonly known as a cold-light film reflector; (4) Electroformed by electroforming to obtain nickel The reflector of the substrate is coated with a high reflectivity or other material on the outside; (5) A triangular prismatic reflector is formed by the total reflection property of glass or plastic. A portion of the light is transmitted and most of it is reflected back.
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