发明公开
- 专利标题： Computer generated hologram for optical switching with SLM
- 专利标题（中）： 计算机可靠性全息计算
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申请号： EP10183288.9申请日： 2000-10-04
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公开(公告)号： EP2372470A1公开(公告)日： 2011-10-05
- 发明人: Warr, Steven , Tan, Kim Leong , Crossland, William , Manolis, llias , Redmond, Maura , Wilkinson, Timothy , Holmes, Melanie , Robertson, Brian
- 申请人： THOMAS SWAN AND CO., LTD.
- 申请人地址： Crookhall Consett, Co. Durham DH8 7ND GB
- 专利权人： THOMAS SWAN AND CO., LTD.
- 当前专利权人： THOMAS SWAN AND CO., LTD.
- 当前专利权人地址： Crookhall Consett, Co. Durham DH8 7ND GB
- 代理机构： Neobard, William John
- 优先权： GB9923428 19991004
- 主分类号： G03H1/08
- IPC分类号： G03H1/08 ; G03H1/30
摘要：
A method of producing a phase-only computer generated hologram for a pixellated Spatial Light Modulator device (200) supporting a discrete number of modulation levels and having an integrated layer of liquid crystal material above a silicon circuit, the method comprising: determining punctuated replay coordinates in a Fourier transform plane (202) of the SLM (200); using said coordinates for calculating the size in pixels of a base cell;
evaluating a holographic base cell pattern using a phase quantisation procedure and replicating said base cell in the plane of the said hologram device 200) until the entire aperture of the hologram device is filled.
evaluating a holographic base cell pattern using a phase quantisation procedure and replicating said base cell in the plane of the said hologram device 200) until the entire aperture of the hologram device is filled.
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