Patents Examined by A. Wise
  • Variable grating diffractive light modulator
    Patent number: 7133184
    Abstract: Disclosed herein is a variable grating diffractive light modulator, which actuates lower reflecting plates of a lower reflecting array by a piezoelectric actuating method, and includes an upper reflecting array that is spaced apart from the lower reflecting array and attached to a lower surface of a substrate that is made of a light transmissive material and covers the lower reflecting array, so that the light modulator reflects incident light transmitted through the substrate and thereby produces diffractive light.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: November 7, 2006
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Dong-Ho Shin, Jong-Hyeong Song, Yoon-Shik Hong, Jong-Su Yi, Yurlov Victor