发明名称 |
System and method for efficient illumination in color projection displays |
摘要 |
A multilevel optical phase element is illuminated with a light source having a plurality of wavelengths of interest. The multilevel phase element disperses light from the light source by diffraction and focuses the dispersed light onto an imaging plane. A light modulating display in the imaging plane having a plurality of pixel elements is actuated. Each pixel element is assigned to transmit a predetermined spectral region within the near field region of the multilevel display element so as to receive the dispersed and focused light from the multilevel optical phase element. A system for displaying a color image includes a light source emitting a plurality of wavelengths of interest, a multilevel optical phase element, and a light modulating electronic display.
|
申请公布号 |
US2002093740(A1) |
申请公布日期 |
2002.07.18 |
申请号 |
US20010895865 |
申请日期 |
2001.06.29 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
SWANSON GARY J. |
分类号 |
G02F1/1335;G02F1/13357;H01L21/02;H04N5/74;H04N9/31;(IPC1-7):G02B5/18;G02B27/44 |
主分类号 |
G02F1/1335 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|