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公开(公告)号:US20080265037A1
公开(公告)日:2008-10-30
申请号:US12094609
申请日:2006-11-24
申请人: Gert T'Hooft , Frank Jeroen Pieter Schuurmans , Bernardus Hendrikus Wilhelmus Hendriks , Mohammed Meftah
发明人: Gert T'Hooft , Frank Jeroen Pieter Schuurmans , Bernardus Hendrikus Wilhelmus Hendriks , Mohammed Meftah
IPC分类号: G06K7/10
CPC分类号: G02B26/005 , G02B3/14 , G11B7/0065 , G11B7/1392
摘要: An optical scanning device for scanning an optical record carrier. The optical scanning device includes: a radiation source system (661; 761); an optical element (1; 101; 201; 301) comprising a first fluid (A) and a second fluid (B; C) separated from each other by a fluid meniscus (16; 116, 138; 216; 316) having an adjustable configuration; and a control system (20; 120; 220; 320) arranged to adjust the fluid meniscus configuration to introduce a first type of wavefront modification. The first type of wavefront modification causes the radiation beam to be redirected from an input radiation beam path (2; 102; 244; 348) onto one of a plurality of output radiation beam paths (24, 26; 140; 246; 350) which each have a different angular displacement (α, β, γ, δ, ∈) from the input radiation beam path. The control system is further arranged to adjust the fluid meniscus configuration to introduce a second type of wavefront modification. The second type of wavefront modification is arranged to compensate a wavefront aberration of the radiation beam, the compensated wavefront aberration being adjusted in accordance with the angular displacement.
摘要翻译: 一种用于扫描光学记录载体的光学扫描装置。 光学扫描装置包括:辐射源系统(661; 761); 包括通过流体弯月面(16; 116,138; 216; 316)彼此分离的第一流体(A)和第二流体(B; C)的光学元件(1; 101; 201; 301) 组态; 以及布置成调节流体弯月面配置以引入第一类型波前修改的控制系统(20; 120; 220; 320)。 第一类型的波前修正使得辐射束从输入辐射束路径(2; 102; 244; 348)重定向到多个输出辐射束路径(24,26; 140; 246; 350)中的一个上,其中 每个都具有与输入辐射束路径不同的角位移(α,β,γ,δ,∈)。 控制系统进一步布置成调节流体弯液面配置以引入第二类型的波前修改。 第二类型的波前修正被布置为补偿辐射束的波前像差,补偿的波前像差根据角位移被调整。
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62.
公开(公告)号:US20080175127A1
公开(公告)日:2008-07-24
申请号:US11910751
申请日:2006-04-06
IPC分类号: G11B7/0065
CPC分类号: G11B7/0065
摘要: The invention relates to a holographic device for writing data in and/or reading-out data from a holographic information carrier. The holographic information carrier comprises a plurality of patterns recorded with a plurality of corresponding recording multiplexing parameters. The holographic device comprises means for detecting one of the patterns and means for associating the detected pattern with the corresponding recording multiplexing parameter. The invention also relates to a corresponding read-out method and a corresponding recording method.
摘要翻译: 本发明涉及一种用于在全息信息载体中将数据写入和/或读出数据的全息装置。 全息信息载体包括用多个对应的记录复用参数记录的多个图案。 全息装置包括用于检测图案之一的装置和用于将检测到的图案与对应的记录多路复用参数相关联的装置。 本发明还涉及相应的读出方法和相应的记录方法。
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公开(公告)号:US20080130462A1
公开(公告)日:2008-06-05
申请号:US11814006
申请日:2006-01-06
IPC分类号: G11B7/0065
CPC分类号: G11B7/1353 , G11B7/0065 , G11B7/128
摘要: An optical device comprises a light source (301) for generating a radiation beam, a reflective diffractive structure (304) for reflecting and diffracting said radiation beam along an optical path (PP), imaging means (305) for imaging the radiation beam after it has been reflected and diffracted by said reflective diffractive structure, and a holographic beam splitter (303) between said reflective diffractive structure and said imaging means along said optical path. Such an optical device can be used for recording data into a holographic medium.
摘要翻译: 光学装置包括用于产生辐射束的光源(301),用于沿着光路(PP)反射和衍射所述辐射束的反射衍射结构(304),用于对其辐射束进行成像的成像装置(305) 已经被所述反射衍射结构反射和衍射,以及沿着所述光路在所述反射衍射结构和所述成像装置之间的全息分束器(303)。 这种光学装置可用于将数据记录到全息介质中。
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