Invention Grant
US07826121B2 Use of an angle-selective retro-reflector to recapture off-state energy 有权
使用角度选择性后向反射器来重新捕获截止状态的能量

  • Patent Title: Use of an angle-selective retro-reflector to recapture off-state energy
  • Patent Title (中): 使用角度选择性后向反射器来重新捕获截止状态的能量
  • Application No.: US12210860
    Application Date: 2008-09-15
  • Publication No.: US07826121B2
    Publication Date: 2010-11-02
  • Inventor: Sajjad A. Khan
  • Applicant: Sajjad A. Khan
  • Applicant Address: US TX Dallas
  • Assignee: Texas Instruments Incorporated
  • Current Assignee: Texas Instruments Incorporated
  • Current Assignee Address: US TX Dallas
  • Agent Wade James Brady, III; Frederick J. Telecky, Jr.
  • Main IPC: G02B26/00
  • IPC: G02B26/00
Use of an angle-selective retro-reflector to recapture off-state energy
Abstract:
Provided is a method for using a display system. The method, in one embodiment, includes directing a light beam from a light source to an array of individually addressable pixels of a spatial light modulator. The method further includes modulating the light beam into a first portion of light using a first addressable pixel, and a second portion of light using a second addressable pixel. Thereafter, the method includes directing the first portion of light having a first incident angle and the second portion of light having a second different incident angle toward an angle-selective retro-reflector, the angle-selective retro-reflector configured to transmit the first portion of light onto a display target, and reflect the second portion of light back toward the second addressable pixel. Additionally, the method includes recycling the reflected second portion of light to the pixels of the spatial light modulator.
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