Optical information phase change recording medium having double
protective layer
    2.
    发明授权
    Optical information phase change recording medium having double protective layer 失效
    具有双重保护层的光学信息相变记录介质

    公开(公告)号:US4984231A

    公开(公告)日:1991-01-08

    申请号:US147362

    申请日:1988-01-22

    IPC分类号: B41M5/26 G11B7/24

    CPC分类号: G11B7/2403 Y10S430/146

    摘要: An optical information recording carrier which comprises an information recording film susceptible to a change in atomic arrangement upon exposure to a recording beam, a first transparent film for preventing diffusion of heat generated in the recording film upon exposure to the recording beam and provided on each side of the recording film, a second transparent film for diffusing the heat in the in-plane direction of the film and provided on at least one outside thereof, and an organic member further provided on at least one outside thereof, the recording beam being irradiated onto the recording film through the organic member has distinguished characteristics of repeated recordings and erasings.

    摘要翻译: 一种光学信息记录载体,其包括在暴露于记录光束时容易发生原子排列变化的信息记录膜;第一透明膜,用于防止在暴露于记录光束时在记录膜中产生的热的扩散并且设置在每一侧 记录膜的第二透明膜,用于在膜的面内方向上扩散热量并设置在其至少一个外部的第二透明膜,以及还设置在其至少一个外部的有机部件,所述记录光束照射到 通过有机构件的记录膜具有重复记录和擦除的特征。

    Stack type optical disc apparatus, sealed and separate type optical head
therefor and optical disc medium
    3.
    发明授权
    Stack type optical disc apparatus, sealed and separate type optical head therefor and optical disc medium 失效
    堆叠式光盘装置,密封分离型光头及光盘介质

    公开(公告)号:US5235591A

    公开(公告)日:1993-08-10

    申请号:US641309

    申请日:1991-01-15

    IPC分类号: G11B7/12 G11B7/14 G11B33/14

    CPC分类号: G11B7/14 G11B33/14 G11B7/122

    摘要: A separation type optical head according to the present invention includes at least a light source portion for emitting collimated beams, a focusing device (a focusing lens) for focusing the collimated beams onto an information recording surface of an optical disc medium, a focal point control mechanism for the position of the spot on the information recording surface, and a photo-detection portion for receiving beams reflected by the information recording surface. The structure is divided into a fixed portion including the light source portion and the photo-detection portion and a movable portion including the focusing device (focusing lens) and the focal point control mechanism. At least the movable portion of the separation type optical head is movably accommodated n a frame (sealing case) for the optical head so as to prevent irregular vibrations of the movable portion due to high speed air flows or turbulence. Furthermore, a focal point control mechanism of an air float type may be employed in the movable portion of the separation type optical head so as to actively utilize the high speed air flow generated due to the rotation of the disc medium to perform a rough adjustment of the focal point of the focusing device.

    摘要翻译: 根据本发明的分离型光学头至少包括用于发射准直光束的光源部分,用于将准直光束聚焦到光盘介质的信息记录表面上的聚焦装置(聚焦透镜),焦点控制 在信息记录表面上的位置的机构,以及用于接收由信息记录表面反射的光束的光检测部分。 该结构被分为包括光源部分和光检测部分的固定部分和包括聚焦装置(聚焦透镜)和焦点控制机构的可动部分。 至少分离型光学头的可移动部分可移动地容纳在用于光学头的框架(密封壳体)中,以防止由于高速空气流动或湍流引起的可移动部分的不规则振动。 此外,可以在分离型光学头的可动部分中采用气浮式的焦点控制机构,以便主动地利用由于盘介质的旋转而产生的高速气流来进行粗略调整 聚焦装置的焦点。

    Magneto-optical recording media and magneto-optical recording device
using the same
    7.
    发明授权
    Magneto-optical recording media and magneto-optical recording device using the same 失效
    磁光记录介质和使用其的磁光记录装置

    公开(公告)号:US5434844A

    公开(公告)日:1995-07-18

    申请号:US43455

    申请日:1993-04-06

    IPC分类号: G11B11/105 G11C13/06

    摘要: This invention provides a magneto-optical recording medium comprising at least an information storage layer and a readout layer disposed on the substrate, the information storage layer being used to record information by changing the magnetized state by raising the temperature thereof by light irradiation, and the readout layer being capable of copying information recorded on the above-mentioned information storage layer, located closer to the substrate than the above-mentioned information storage layer, and having a coercive force of 3 kOe or less at room temperature. By using this recording medium, a Signal to Noise ratio can be obtained in reproduction without deterioration of the information recording characteristics.

    摘要翻译: 本发明提供一种磁光记录介质,至少包括信息存储层和设置在基板上的读出层,所述信息存储层用于通过通过光照射升高其温度来改变磁化状态来记录信息,并且 读出层能够复制记录在上述信息存储层上的信息,位于比上述信息存储层更靠近基板的位置,并且在室温下具有3kOe以下的矫顽力。 通过使用该记录介质,可以在再现时获得信噪比,而不会降低信息记录特性。

    Member for recording information
    9.
    发明授权
    Member for recording information 失效
    会员记录信息

    公开(公告)号:US4296419A

    公开(公告)日:1981-10-20

    申请号:US76424

    申请日:1979-09-17

    摘要: A recording member in which a bismuth-antimony alloy thin film containing antimony as its indispensable component is deposited on a predetermined substrate is disclosed. The Sb content of the film lies in a range of from 1 % to 15 % inclusive in terms of the average atomic-%. Preferably, the Sb content has the average value held in the specified range, and it is gradually increased in the thickness direction of the film so that in the part near the substrate and/or front surface of the film, the maximum content may lie within a range of at most three times the average content of other part of the film.

    摘要翻译: 公开了一种记录部件,其中将含有锑作为不可缺少的成分的铋 - 锑合金薄膜沉积在预定的基板上。 膜的Sb含量在平均原子%的范围内在1%至15%的范围内。 优选地,Sb含量的平均值保持在规定范围内,并且在膜的厚度方向上逐渐增加,使得在膜的基板和/或前表面附近的部分中,最大含量可以在 最多是电影其他部分平均含量的三倍。

    Recording member
    10.
    发明授权
    Recording member 失效
    录音成员

    公开(公告)号:US4348461A

    公开(公告)日:1982-09-07

    申请号:US160661

    申请日:1980-06-18

    摘要: A recording member having a predetermined substrate, and a thin film which is formed on the substrate and which is formed with recesses or pits for recording information when irradiated with a working beam, characterized in that said thin film is formed of an inorganic material which contains at least arsenic, selenium and tellurium, and that a distribution of either of said Se and said Te decreases from a part near the surface of said thin film towards a central part thereof, while a distribution of said As increases from a part near the surface towards said central part, is disclosed. This recording member can afford a high signal-to-noise ratio and a long lifetime. It is preferable that the distribution of said Se decreases so as to be at least 50 atomic-% in terms of the content of said Se in a part being the closest to the surface of said thin film and to be at most 40 atomic-% in terms of the average content of said Se over the whole thin film, and that the distribution of said As increases so as to be at most 15 atomic-% in terms of the content of said As in the closest part and to be 5 to 35 atomic-% in terms of the average content of said As in said whole thin film. The Se-Te-As-based material may well be doped with at least one element selected from the group consisting of Ge, S, Tl, Sn, Pb, In and Ta, within a range of 2 to 15 atomic-%.

    摘要翻译: 具有预定基板的记录部件和形成在基板上并且在用工作光束照射时用于记录信息的凹坑或凹坑形成的薄膜,其特征在于,所述薄膜由无机材料形成,所述无机材料包含 至少砷,硒和碲,并且所述Se和所述Te中的任一个的分布从所述薄膜的表面附近的部分向其中心部分减少,而所述As的分布从表面附近的部分增加 朝向所述中心部分。 该记录部件可以提供高的信噪比和长的使用寿命。 优选所述Se的分布以与所述薄膜表面最接近的部分中的所述Se的含量为至少50原子%,并且为至多40原子% 就所述Se在整个薄膜上的平均含量而言,所述As的分布以所述As在最接近的部分的含量为最多为15原子%,并且为5〜 在所述整个薄膜中,所述As的平均含量为35原子%。 可以在2至15原子%的范围内掺杂选自由Ge,S,Tl,Sn,Pb,In和Ta组成的组中的至少一种元素的Se-Te-As基材料。