-
公开(公告)号：US4241240A
公开(公告)日：1980-12-23
申请号：US954869
申请日：1978-10-26
申请人： Kazuo Shigematsu , Keizo Kato , Toshimitsu Miyauchi , Seiji Yonezawa , Fumiyuki Inose , Kimio Tatsuno , Takeshi Maeda
发明人： Kazuo Shigematsu , Keizo Kato , Toshimitsu Miyauchi , Seiji Yonezawa , Fumiyuki Inose , Kimio Tatsuno , Takeshi Maeda
CPC分类号： G11B17/005 , G11B27/02 , G11B7/0953
摘要： An optical information recording and reproducing apparatus is disclosed in which a predetermined signal is recorded on a track of a rotating recording medium by a recording light beam and the recorded information is reproduced by a reproducing light beam. The information recorded on the last record track is reproduced by the recording beam and the reproducing beam and radiating position of the recording beam on the recording medium is displaced by a predetermined distance from the last record track.
摘要翻译： 公开了一种光信息记录和再现装置，其中通过记录光束将预定信号记录在旋转记录介质的轨道上，并且通过再现光束再现记录信息。 记录在最后记录轨道上的信息由记录光束再现，并且记录光束的再现光束和记录光束的照射位置离开最后的记录轨道一预定的距离。
-
公开(公告)号：US4301527A
公开(公告)日：1981-11-17
申请号：US47078
申请日：1979-06-11
摘要： An optical head comprising a lens disposed at a position for forming spot images of a semiconductor laser having a plurality of lasing points, in which beams from the semiconductor laser are focused on a disc on which predetermined information is recorded by light.
摘要翻译： 一种光学头，包括设置在用于形成具有多个激光点的半导体激光器的点图像的位置处的透镜，其中来自半导体激光器的光束聚焦在光被记录了预定信息的盘上。
-
公开(公告)号：US4298974A
公开(公告)日：1981-11-03
申请号：US37898
申请日：1979-05-10
申请人： Yoshito Tsunoda , Kimio Tatsuno , Toshimitsu Miyauchi , Kunio Aiki , Ryoichi Ito
发明人： Yoshito Tsunoda , Kimio Tatsuno , Toshimitsu Miyauchi , Kunio Aiki , Ryoichi Ito
摘要： An optical head comprising a semiconductor laser array which is used as a light source, and an optical system which guides laser beams from the array to a predetermined recording medium. The beam from one lasing point of the array is modulated by predetermined information and is used as a recording beam, while the beam from another lasing point is continuously oscillated and is used as a playback beam.
摘要翻译： 包括用作光源的半导体激光器阵列的光学头以及将激光束从阵列引导到预定记录介质的光学系统。 来自阵列的一个激光点的光束由预定信息调制，并用作记录光束，而来自另一个激光点的光束被连续地振荡并用作回放光束。
-
公开(公告)号：US4556965A
公开(公告)日：1985-12-03
申请号：US241728
申请日：1981-03-09
CPC分类号： G11B7/0909
摘要： In an information recording apparatus for recording predetermined information on a recording medium by means of a laser beam, an optical system and a light detector are arranged for detecting a reflected version of the laser beam from the recording medium, whereby the focusing of the laser beam on the recording medium is automatically controlled.
摘要翻译： 在用于通过激光束将预定信息记录在记录介质上的信息记录装置中，布置有用于检测来自记录介质的激光束的反射形式的光学系统和光检测器，由此激光束的聚焦 在记录介质上自动控制。
-
公开(公告)号：US4283785A
公开(公告)日：1981-08-11
申请号：US33806
申请日：1979-04-26
IPC分类号： H04N5/85 , G11B7/0045 , G11B7/12 , G11B7/125 , G11B7/126 , G11B20/06 , G11B20/18 , G11B27/36 , H01S5/0683 , G11B7/00
CPC分类号： G11B7/126 , G11B20/06 , G11B20/18 , G11B27/36 , G11B7/0045 , G11B7/12 , H01S5/06835
摘要： In an optical information recording apparatus, a version of a recording light emitted from a light source and reflected by a recording medium is detected to control the recording light output power of the light source.
摘要翻译： 在光学信息记录装置中，检测从光源发射并由记录介质反射的记录光的版本，以控制光源的记录光输出功率。
-
6.发明授权
公开(公告)号：US4308612A
公开(公告)日：1981-12-29
申请号：US105704
申请日：1979-12-20
CPC分类号： G11B20/1813 , G06F11/00 , G11B7/0052
摘要： In apparatus wherein a predetermined information signal is recorded on an optical disk by the use of a light beam; an information recording apparatus characterized by provision of a light detector for detecting reflected light caused by the reflection of the light beam by the optical disk, and a checking circuit for detecting the duration for which a maximum peak value of the output from the light detector exists, the recorded state of information on the optical disk being detected on the basis of the output from the detector by the checking circuit.
摘要翻译： 在其中通过使用光束将预定信息信号记录在光盘上的装置中; 一种信息记录装置，其特征在于提供一种光检测器，用于检测由光盘反射光束引起的反射光;以及检查电路，用于检测存在来自光检测器的输出的最大峰值的持续时间 基于通过检查电路的来自检测器的输出检测光盘上的信息的记录状态。
-
公开(公告)号：US4051528A
公开(公告)日：1977-09-27
申请号：US661806
申请日：1976-02-26
申请人： Yasutsugu Takeda , Hisashi Nakamura , Yoshito Tsunoda , Toshihisa Tsukada , Toshimitsu Miyauchi
发明人： Yasutsugu Takeda , Hisashi Nakamura , Yoshito Tsunoda , Toshihisa Tsukada , Toshimitsu Miyauchi
IPC分类号： H04N5/85 , G02B27/00 , G11B7/09 , G11B7/095 , G11B7/12 , G11B7/125 , G11B7/128 , G11B7/135 , H04N5/86
CPC分类号： G11B7/128 , G11B7/095 , G11B7/12 , Y10S250/909
摘要： Optical information reconstructing apparatus comprising a disc having at least one surface on which groups of dots bearing information are concentrically or spirally arrayed, a mechanism for rotating the disc, a light source for projecting a light beam on the array of groups of dots, and at least one photodetector for detecting diffracted light waves from the groups of dots, characterized in that a semiconductor laser array is used as the light source and that the light emission is switched from one laser source to another in the laser array in tracking the information.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.03 秒)