发明名称 |
HIGH EFFICIENCY PROJECTION DISPLAYS HAVING THIN FILM POLARIZING BEAM SPLITTERS |
摘要 |
<p>A projection display system includes a thin film polarizing beam splitter/combiner has first and second light transmissive substrates in the form of prisms and a plurality of thin film layers disposed between the prisms. The thin film layers and have predetermined thicknesses and refractive indices which allow unpolarized incident light to be separated into s-polarized and p-polarized light beams. Both frustrated total internal reflection and thin film interference are simultaneously employed to allow s-polarized light to be transmitted and p-polarized light to be reflected over a wide range of wavelengths and angles of incidence. The device further includes two spatial light modulators for encoding an image to be projected. By providing a different signal to each spatial light modulator, a 3 dimensional display results.</p> |
申请公布号 |
CA2183188(A1) |
申请公布日期 |
1998.02.14 |
申请号 |
CA19962183188 |
申请日期 |
1996.08.13 |
申请人 |
NATIONAL RESEARCH COUNCIL OF CANADA |
发明人 |
LI, LI;SULLIVAN, BRIAN |
分类号 |
G02B27/28;H04N9/31;(IPC1-7):G02B27/00;H04N5/74;G02F1/133;G02B27/26 |
主分类号 |
G02B27/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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