Patent ID: 9684203
Date: 2017-06-20
CPC Classifications: G02B,G02F,G03B

Claim:
1. An image projection system comprising: a) an incoming wire grid polarizer disposed between a light source and a liquid crystal display (LCD); b) the incoming wire grid polarizer including an array of parallel, elongated rods disposed over a surface of a transparent substrate with gaps between adjacent rods, each of the rods including a reflective wire sandwiched between two absorptive ribs; c) the incoming wire grid polarizer disposed in a location to receive light from the light source and capable of substantially transmitting one polarization and substantially absorbing an opposite polarization of the light from the light source; and d) the incoming wire grid polarizer disposed in a location to receive reflected light from the LCD and capable of substantially absorbing the reflected light from the LCD; e) the polarizer, in a light wavelength range of 450 nanometers through 700 nanometers, is capable of absorbing at least 80% of one polarization of light from both sides of the polarizer and transmitting at least 80% of an opposite polarization of light.