发明名称 |
Low noise transmission holographic optical element |
摘要 |
A holographic recording medium is treated to reduce or eliminate unwanted extraneous diffraction in a volume transmission hologram. Surface regions of the medium are desensitized either before or after a holographic recording to reduce the contrast of the holographic fringe pattern along the surfaces, and thereby to eliminate planar phase grating effects. Treatments include applying a burst of gas or vapor to the surface, irradiating the surfaces with highly absorbed incoherent light, thermally treating the recording medium.
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申请公布号 |
US5315417(A) |
申请公布日期 |
1994.05.24 |
申请号 |
US19920967941 |
申请日期 |
1992.10.28 |
申请人 |
HUGHES AIRCRAFT COMPANY |
发明人 |
MOSS, GAYLORD E.;WREEDE, JOHN E. |
分类号 |
G02B5/32;G03H1/18;(IPC1-7):G03H1/02;G03H1/04 |
主分类号 |
G02B5/32 |
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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