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1.发明授权
公开(公告)号：US5508528A
公开(公告)日：1996-04-16
申请号：US346978
申请日：1994-11-29
IPC分类号： G03F7/20 , H01L21/027 , G01J1/00 , A61N5/00 , G21G5/00
CPC分类号： G03F7/70058 , G03F7/70575 , G03F7/70916 , G03F7/70933
摘要： An imaging apparatus and an illumination unit for use in such an apparatus are described, which unit comprises an illumination housing (LH) accommodating a radiation source (LA) and at least a reflector (RL). To prevent a decrease of the radiation power supplied by the illumination housing, this housing is provided with means (LA, SH, L.sub.29) which prevent a diffuse deposit of silicon-containing particles present in the ambient air from being formed on optical components within the illumination housing.
摘要翻译： 描述了用于这种装置的成像设备和照明单元，该单元包括容纳辐射源（LA）和至少反射器（RL）的照明外壳（LH）。 为了防止由照明壳体提供的辐射功率的降低，该壳体设置有装置（LA，SH，L29），其防止存在于环境空气中的含硅颗粒的扩散沉积物形成在内部的光学部件上 照明外壳。
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2.发明授权Record carrier having servo-track portions and sector addresses having the same predetermined width 失效具有伺服磁道部分和具有相同预定宽度的扇区地址的记录载体
公开(公告)号：US5038339A
公开(公告)日：1991-08-06
申请号：US467696
申请日：1990-02-20
CPC分类号： G11B7/24 , G11B23/0057 , G11B7/00745 , G11B7/0938 , G11B7/12 , G11B7/14
摘要： A record-carrier body is described, in which a user can record information by means of optical radiation, which record-carrier body has a relief structure of optically detectable servo-track portions and sector addresses. If the maximum width of the servo-track portions and the areas in the sector addresses is at least of the order of half the track period, the servo track portions can be tracked in an optimum manner and the sector-address areas and the information areas recorded by the user provide a read signal of high amplitude.
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3.发明授权
公开(公告)号：US5268748A
公开(公告)日：1993-12-07
申请号：US834025
申请日：1992-02-11
CPC分类号： G11B7/00375 , G01N21/88 , G01N21/55 , G01N21/59 , G01N21/9506
摘要： An arrangement for measuring the reflection and/or transmission of an object comprises a frame 1, a carrier 7 for the object, a radiation source 15 and a detector unit. The detector unit, which comprises one or more radiation-sensitive detectors 17A, 17B may be arranged on a holder 13 which is pivotable about a pivotal axis 13a. A slide 5, which is movable parallel to the pivotal axis, may be provided for moving the carrier and the detector unit rectilinearly towards and away from one another.
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4.发明授权Record-carrier body provided with a relief structure of optically detectable servo-track portions and sector addresses and apparatus for forming said structure 失效具有可光学检测的伺服磁道部分的浮雕结构和用于形成所述结构的扇区地址和装置的记录载体主体
公开(公告)号：US4959822A
公开(公告)日：1990-09-25
申请号：US410691
申请日：1989-09-21
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/007 , G11B7/08 , G11B7/09 , G11B7/12 , G11B7/24 , G11B7/26 , G11B23/00
CPC分类号： G11B7/261 , G11B23/0057 , G11B7/007 , G11B7/00745 , G11B7/0938 , G11B7/24 , G11B7/24079
摘要： A record carrier body is disclosed which is, provided with sector addresses and servo-track portions. The maximum width of the servo-track portions is at least 60% of the track period, in a direction transverse to the track direction, and is at least of the order of twice the maximum width of the sector-address areas. This makes it possible to obtain an improved tracking signal in addition to a satisfactory address signal. An improved information signal can be obtained by recording the information in the lands between the servo tracks. An apparatus is disclosed for recording sector addresses and servo track portions on the record carrier body.
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5.发明授权Record-carrier body provided with a relief structure of optically detectable servo-track portions and sector addresses and apparatus for forming said structure 失效具有可光学检测的伺服磁道部分的浮雕结构和用于形成所述结构的扇区地址和装置的记录载体主体
公开(公告)号：US4893298A
公开(公告)日：1990-01-09
申请号：US735005
申请日：1985-05-17
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/007 , G11B7/08 , G11B7/09 , G11B7/12 , G11B7/24 , G11B7/26 , G11B23/00
CPC分类号： G11B7/261 , G11B23/0057 , G11B7/007 , G11B7/00745 , G11B7/0938 , G11B7/24 , G11B7/24079
摘要： An optical record carrier body having a planar substrate with elongated generally parallel servo tracks thereon separated by lands extending there-between, the lands having a flat surface coplanar with the substrate surface and a recording layer thereon on which information can be recorded by a beam of radiation. Sector addresses are provided between successive segments of the lands, each sector address having optically detectable areas. The maximum transverse width of each servo track is at least 60% of the track period and at least twice the maximum transverse width of the sector address areas. Apparatus is disclosed for recording the servo tracks and sector addresses on a substrate, as well as apparatus for recording information on the successive segments of the lands between the sector addresses.
摘要翻译： 一种具有平面基板的光学记录载体主体，其上具有细长的大体上平行的伺服磁道，其上分隔有一个由其延伸的平台，其间具有与基板表面共面的平坦表面的平台和其上的记录层， 辐射。 扇区地址提供在陆地的连续段之间，每个扇区地址具有光学可检测区域。 每个伺服磁道的最大横向宽度至少为轨道周期的60％，并且至少为扇区地址区域的最大横向宽度的两倍。 公开了用于在基板上记录伺服轨道和扇区地址的装置，以及用于在扇区地址之间的陆地的连续段上记录信息的装置。
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