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1. 发明授权

US4498159A Track deviation detecting apparatus 失效
标题翻译：履带偏差检测装置
公开(公告)号：US4498159A
公开(公告)日：1985-02-05
申请号：US465579
申请日：1983-02-10
申请人： Masahiro Daimon
发明人： Masahiro Daimon
IPC分类号： G11B7/09 , G11B7/00 , G11B21/00
CPC分类号： G11B7/0903
摘要： A track deviation detecting apparatus for detecting a deviation of a recording light spot (A) from a track (15) on a recording medium (7) comprises two diffraction gratings (2, 18) for producing two auxiliary spots (B1, C1) being led along light paths (30b1, 30c1), optical means comprising a light source (1), a collimator lens (17) and a condenser (6), and two optical detectors (20, 21) adapted to detect the respective reflected light rays from the auxiliary spots (B1, C1) on the recording medium (7). A positional relationship of two diffraction gratings (2, 18) and the optical means is arranged so that one of two auxiliary spots (B1, C1) is located on an unrecorded portion of the track (15) and at a lower edge (13) of the track (15), and the other is located on the unrecorded portion of the track (15) and at an upper edge of the track (15). The reflected light rays from two auxiliary spots (B1, C1) are led to the optical detectors (20, 21) installed correspondingly thereto, without being influenced by the record pits (16) formed by the spot of light (A). Thus, outputs from the optical detectors (20, 21) are differentially amplified by a differential amplifier (14) connected thereto, thereby making it possible to detect the amount and direction of the deviation of the spot of light (A) from the track (15) without being influenced by the record pits (16).
摘要翻译：用于检测来自记录介质（7）上的轨道（15）的记录光点（A）的偏差的轨道偏离检测装置包括两个用于产生两个辅助点（B1，C1）的衍射光栅（2,18）沿着光路（30b1,30c1）引导，包括光源（1），准直透镜（17）和冷凝器（6）的光学装置和适于检测各个反射光线的两个光学检测器（20,21）从记录介质（7）上的辅助点（B1，C1）。两个衍射光栅（2,18）和光学装置的位置关系被布置成使得两个辅助点（B1，C1）中的一个位于轨道（15）的未记录部分上并且位于下边缘（13）处，，另一个位于轨道（15）的未记录部分和轨道（15）的上边缘处。来自两个辅助点（B1，C1）的反射光线被引导到对应于其安装的光学检测器（20,21），而不受由光斑（A）形成的记录坑（16）的影响。因此，来自光检测器（20,21）的输出通过与其连接的差分放大器（14）进行差分放大，从而可以检测光点（A）与轨迹（A）的偏离量和方向 15）而不受记录坑的影响（16）。

2. 发明授权

US5513201A Optical path rotating device used with linear array laser diode and laser apparatus applied therewith 失效
标题翻译：用于线性阵列激光二极管的光路旋转装置及其应用的激光装置
公开(公告)号：US5513201A
公开(公告)日：1996-04-30
申请号：US235455
申请日：1994-04-28
申请人： Satoshi Yamaguchi , Masahiro Daimon , Koichi Chiba , Tetsurou Kobayashi , Yoshimasa Saito
发明人： Satoshi Yamaguchi , Masahiro Daimon , Koichi Chiba , Tetsurou Kobayashi , Yoshimasa Saito
IPC分类号： G02B6/42 , G02B27/09 , H01S3/00 , H01S5/00 , H01S5/40 , H01S3/094
CPC分类号： G02B19/0057 , G02B19/0028 , G02B27/0944 , G02B27/0961 , G02B27/0966 , G02B27/0972 , G02B6/425 , H01S5/4025 , G02B6/4206 , H01S3/005 , H01S5/005
摘要： An optical path rotating device, disposed in front of a linear array laser diode having a plurality of long and narrow and linearly arranged emitters for emitting a group of laser beams in the form of a dotted line, the optical path rotating device being able to convert the laser beams from the emitters into laser beams lined up in the form of ladder rungs by receiving the group of laser beams collimated by being refracted in a direction substantially perpendicular to the direction of the dotted line, rotating the positions of the laser beams from the emitters substantially for a right angle, and emitting the laser beams, and a laser apparatus, which uses the optical path rotating device, for collimating the substantially rung-shaped laser beams into two directions independently, bringing the laser means into focus, thus increasing the density of the laser energy at the focus.
摘要翻译：一种光路旋转装置，设置在线阵列激光二极管的前面，该线阵列激光二极管具有多个长而窄的线性排列的发射体，用于发出虚线形式的一组激光束，该光路旋转装置能够转换通过接收通过在与虚线的方向基本垂直的方向上被折射而准直的激光束组，将来自发射器的激光束形成为阶梯形式的激光束，将激光束的位置从发射器基本上成直角，并且发射激光束;以及激光装置，其使用光路旋转装置，用于将大致梯形激光束独立地准直到两个方向，使激光装置聚焦，从而增加焦点处的激光能量的密度。

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