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    • 61. 发明申请
    • Optical record carrier for use with uv radiation beam
    • 用于uv辐射束的光学记录载体
    • US20060110571A1
    • 2006-05-25
    • US10529687
    • 2003-09-19
    • Helmar Van SantenHendrik StapertJohan Kloosterboer
    • Helmar Van SantenHendrik StapertJohan Kloosterboer
    • B32B3/02
    • G11B7/2542G11B7/252G11B7/2534G11B7/2545G11B2007/24314G11B2007/24316G11B2007/2571G11B2007/25713
    • The present invention relates to an optical record carrier for recording and/or information using a radiation beam in the UV wavelength range, in particular having a wavelength in the range from 230 to 270 nm, comprising a substrate layer (S) and an information stack (R) comprising an information layer (P) comprising a material for forming marks and spaces representing an information by irradiation of a UV radiation beam, a transparent cover layer (C) on top of the side of the said record carrier facing the incident UV radiation beam. The cover layer (C) is made of a cured resin composition being a silicon based reactive material, which achieves a high UV transparency required for the recording and/or reading of data. The optical record carrier may further comprise at least one additional information stack and at least one transparent spacer layer for separating the information stacks from each other, said spacer layer (SP) being made of the said resin composition.
    • 本发明涉及一种用于记录和/或使用UV波长范围内的辐射束,特别是波长在230至270nm范围内的信息的光学记录载体,包括基底层(S)和信息堆叠 (R)包括信息层(P),所述信息层(P)包括用于形成通过UV辐射束的照射来表示信息的标记和空间的材料;在所述记录载体的面对入射的UV的一侧的顶部上的透明覆盖层 辐射束。 覆盖层(C)由基于硅的反应性材料的固化树脂组合物制成,其实现了数据记录和/或读取所需的高的UV透明度。 光学记录载体还可以包括至少一个附加信息堆叠和用于将信息堆叠彼此分离的至少一个透明间隔层,所述间隔层(SP)由所述树脂组合物制成。
    • 64. 发明授权
    • Method of manufacturing an optically scannable information carrier
    • US06649093B2
    • 2003-11-18
    • US09915679
    • 2001-07-26
    • Helmar Van SantenGerard Eduard Van Rosmalen
    • Helmar Van SantenGerard Eduard Van Rosmalen
    • B29D1100
    • G11B7/122G11B7/261Y10S425/81
    • The invention relates to a method of manufacturing a master mold (1), which is used to manufacture an optical information disc, such as a CD or DVD. According to the method, a substrate (3) is provided with a photosensitive layer (5), which is subsequently irradiated by means of a radiation beam (7), which is focused to a scanning spot (11) on said layer by means of an optical lens system (9). A liquid, such as water, is supplied into a gap (53) present between the photosensitive layer and an auxiliary lens (59) of the lens system facing said layer. As a result, the size of the scanning spot is decreased and the information density of the information disc to be manufactured is increased. According to the invention, the liquid is supplied via a supply opening (69) which is positioned immediately adjacent the auxiliary lens (59), in a direction which, viewed from the scanning spot (11), is contrary to a direction (Z) wherein the substrate (3) is moved with respect to the lens system (9). Thus, the liquid supplied via the supply opening is transported immediately and exclusively into said gap (53), so that the amount of liquid to be supplied to fill the gap is limited. The supply opening is formed in a wall portion (65), which extends in an imaginary plane in which also a side wall (63) of the auxiliary lens (59) facing the photosensitive layer is present. As a result, a homogeneous Couette flow of liquid without air inclusions is obtained in the gap. This Couette flow does not cause any undesirable mechanical vibrations of the lens system. The invention further relates to a method of manufacturing an optical information disc, according to which method a master mold (1) is manufactured in a first step, and the information disc is manufactured in a second step by means of a replica process using said master mold. The invention further relates to a device (25) for the manufacture of a master mold by means of a method according to the invention.