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    • 17. 发明申请
    • OPTICAL SCANNING DEVICE
    • 光学扫描装置
    • WO2006077542A3
    • 2006-10-05
    • PCT/IB2006050190
    • 2006-01-18
    • KONINKL PHILIPS ELECTRONICS NVTUKKER TEUNIS WVREHEN JORIS J
    • TUKKER TEUNIS WVREHEN JORIS J
    • G11B7/125G11B7/135
    • G11B7/1275G11B7/1367G11B7/13922G11B2007/0006
    • An optical scanning device for scanning optical record carriers, the optical record carriers including a first optical record carrier, a second optical record carrier and a third optical record carrier, the scanning device including a radiation source system (7) for producing first, second and third radiation beams for scanning said first, second and third record carriers, respectively, in first, second and third scanning modes, said first, second and third radiation beams having different predetermined wavelengths, the scanning device comprising an objective lens and an optical compensator, the optical compensator having a non-periodic phase structure through which each of said first, second and third radiation beams are arranged to pass, said non-periodic phase structure including a plurality of stepped annular zones separated by steps, the zones forming a non-periodic radial pattern, the stepped annular zones introducing first, second and third different wavefront modifications into at least part of the first, second and third radiation beams, respectively, characterized in that said objective lens is arranged to apply a focus offset when scanning said first record carrier, which focus offset is arranged to provide a phase modification which, in combination with said optical compensator, compensates spherical aberration in the first radiation beam.
    • 1。一种用于扫描光学记录载体的光学扫描装置,所述光学记录载体包括第一光学记录载体,第二光学记录载体和第三光学记录载体,所述扫描装置包括用于产生第一,第二和第三光学记录载体的辐射源系统(7) 用于在第一,第二和第三扫描模式中分别扫描所述第一,第二和第三记录载体的第三辐射束,所述第一,第二和第三辐射束具有不同的预定波长,所述扫描装置包括物镜和光学补偿器, 所述光学补偿器具有非周期性相位结构,所述第一,第二和第三辐射光束中的每一个均被布置成通过所述非周期性相位结构,所述非周期性相位结构包括由台阶分开的多个台阶式环形区域, 周期性径向图案,阶梯环形区域引入第一,第二和第三不同的波前修改 分别至少部分第一,第二和第三辐射束,其特征在于:所述物镜被设置为在扫描所述第一记录载体时施加聚焦偏移,所述聚焦偏移被设置为提供相位修改,所述相位修改与 所述光学补偿器补偿第一辐射束中的球面像差。
    • 20. 发明申请
    • SWITCHABLE OPTICAL ELEMENT
    • 可切换光学元件
    • WO2006056922A1
    • 2006-06-01
    • PCT/IB2005/053828
    • 2005-11-21
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.TUKKER, Teunis, W.HENDRIKS, Bernardus, H., W.KUIPER, SteinVREHEN, Joris, J.JUTTE, Petrus, T.
    • TUKKER, Teunis, W.HENDRIKS, Bernardus, H., W.KUIPER, SteinVREHEN, Joris, J.JUTTE, Petrus, T.
    • G02B3/14
    • G02B26/005G02B3/14
    • A switchable optical element having an optical path (OP) for a radiation beam and having a first state and a second state, the element comprising: a first fluid (12) and a second, different, fluid (14) which are immiscible and which are separated from each other by a fluid meniscus (16); a first, transparent, wall part and a second, transparent, wall part spaced from each other along the optical path; and a fluid switching system which is arranged to apply forces to the first and/or the second fluid in order to switch the element between the first and the second state. The first wall part includes a non-planar wavefront modifier (28), and wherein the fluid switching system is arranged to apply the forces so that when the element is in the first state, the first wall part is covered by the first fluid (12); and when the element is in the second state, the first wall part is covered by the second fluid (14). The switchable optical element is characterised in that the fluid switching system is arranged to switch between the first state and the second state such that when the element is in the first state the second wall part is covered by the second fluid, and when the element is in the second state the second wall part is covered by the first fluid. When the element is in both the first state and the second state, at least part of the fluid meniscus (16) is located on the optical path.
    • 一种具有用于辐射束的光路(OP)并具有第一状态和第二状态的可切换光学元件,所述元件包括:第一流体(12)和第二不同流体(14),其不混溶,并且其中 通过流体弯液面(16)彼此分离; 第一,透明的壁部分和第二透明壁部分,沿着光路彼此间隔开; 以及布置成向第一和/或第二流体施加力以便在第一和第二状态之间切换元件的流体切换系统。 第一壁部分包括非平面波前修正器(28),并且其中流体切换系统被布置成施加力,使得当元件处于第一状态时,第一壁部分被第一流体(12 ); 并且当元件处于第二状态时,第一壁部分被第二流体(14)覆盖。 可切换光学元件的特征在于,流体切换系统布置成在第一状态和第二状态之间切换,使得当元件处于第一状态时,第二壁部被第二流体覆盖,并且当元件为 在第二状态下,第二壁部被第一流体覆盖。 当元件处于第一状态和第二状态时,流体弯液面(16)的至少一部分位于光路上。