Reflector and optical system of LCD projector

摘要

A reflector includes a reflective film and a substrate, wherein the reflective film is attached to the substrate. Also, an optical system of an LCD (liquid crystal display) projector includes a first reflector, a second reflector, an LED (light emitting diode) light source, a condenser, a collimating lens, an LCD light valve, a field lens and a projection lens, wherein the LED light source, the condenser, the first reflector, the collimating lens, the LCD light valve, the field lens, the second reflector and the projection lens are set in sequence according to a direction of light. The reflector is significantly improved in the reflection efficiency while maintaining the low cost, or the reflector is significantly reduced in the manufacturing cost while achieving the high reflection efficiency, so that the output brightness and the photoelectric efficiency of the projector including the reflector with low cost, which has a very positive effect.