公开(公告)号：US4564268A

公开(公告)日：1986-01-14

申请号：US381915

申请日：1982-05-24

申请人： Kimio Tatsuno ,  Akira Arimoto

发明人： Kimio Tatsuno ,  Akira Arimoto

IPC分类号： G02B27/09 ,  B41J2/44 ,  G02B13/00 ,  G02B13/08 ,  G02B27/18 ,  G11B7/125 ,  G11B7/1376 ,  G11B7/1398 ,  G11B7/18 ,  H01S5/00 ,  G02B3/04

CPC分类号： G11B7/1398 ,  B41J2/442 ,  G02B13/00 ,  G02B27/18 ,  G11B7/1376

摘要： An optical system for focusing a light beam emitted from a semiconductor laser is disclosed which comprises a lens of a numerical aperture NA satisfying a relation ##EQU1## (where .lambda. and .DELTA.Z indicate a laser wavelength of and an astigmatic focal distance in the semiconductor laser, respectively) to make the wave front aberration of a light beam emerging from the lens smaller than or equal to .lambda./4, thereby correcting astigmatism in the semiconductor laser.

摘要翻译： 公开了一种用于聚焦从半导体激光器发射的光束的光学系统，其包括满足关系（（其中λ和DELTA Z表示半导体中的激光波长和散光焦距）的数值孔径NA的透镜 激光），以使从透镜出射的光束的波前像差小于或等于λ/ 4，从而校正半导体激光器中的散光。

公开(公告)号：US5615199A

公开(公告)日：1997-03-25

申请号：US356524

申请日：1994-12-15

申请人： Kimio Tatsuno ,  Takeshi Shimano ,  Hiroshi Fukuda ,  Osamu Komoda

发明人： Kimio Tatsuno ,  Takeshi Shimano ,  Hiroshi Fukuda ,  Osamu Komoda

IPC分类号： G11B7/135 ,  G11B7/125 ,  G11B7/00

CPC分类号： G11B7/1367 ,  G11B7/13922 ,  G11B2007/13727

摘要： An optical head apparatus for recording and reproducing data to and from optical disks, the apparatus boosting recording density by use of an objective lens with a higher numerical aperture (NA) than ever. A phase plate is added to the pupil position of the objective lens or to a position close thereto. The phase plate arrangement provides a deeper focal length, reduces the adverse effects of aberration and eliminates the need for a tilt servo mechanism despite the use of the objective lens having a greater numerical aperture than before.

摘要翻译： 一种用于从光盘记录和再现数据的光学头装置，该装置通过使用具有比以往更高的数值孔径（NA）的物镜提高记录密度。 将相位板添加到物镜的光瞳位置或其附近的位置。 相位板布置提供更深的焦距，减少了像差的不利影响，并且消除了对倾斜伺服机构的需要，尽管使用具有比以前更大的数值孔径的物镜。

公开(公告)号：US5281797A

公开(公告)日：1994-01-25

申请号：US996033

申请日：1992-12-23

申请人： Kimio Tatsuno ,  Shigeru Nakamura ,  Hisataka Sugiyama ,  Masahiko Takahashi

发明人： Kimio Tatsuno ,  Shigeru Nakamura ,  Hisataka Sugiyama ,  Masahiko Takahashi

IPC分类号： G11B7/125 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/09 ,  G11B7/135 ,  G11B11/10 ,  G11B11/105 ,  G01S1/20

CPC分类号： G11B7/1381 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/0903 ,  G11B7/139 ,  G11B2007/0006

摘要： An optical disk head having a short wavelength light source has an aperture diaphragm placed in the course of its focusing optical system which can change its aperture diameter depending on the pit size on an optical disk in order to allow recording on and reproducing from not only a short wavelength optical disk, but also a long wavelength optical disk. The aperture diameter is made larger for the smaller pit size and vice versa, and the light source output is adjusted depending on the aperture diameter so that the light amount coming from the disk surface to a photodetector cannot be changed with the aperture diameter.

摘要翻译： 具有短波长光源的光盘头具有放置在其聚焦光学系统的过程中的孔径光阑，其可以根据光盘上的凹坑尺寸改变其孔径直径，以允许不仅记录 短波长光盘，也是长波长光盘。 对于较小的凹坑尺寸，孔径直径变大，反之亦然，并且根据孔径直径调节光源输出，使得从盘表面到光电检测器的光量不能随孔径而改变。

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

IPC分类号： H04N5/85 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/095 ,  G11B17/00 ,  G11B27/02 ,  H04N5/76 ,  G11B7/12

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：US5377212A

公开(公告)日：1994-12-27

申请号：US961648

申请日：1992-10-16

申请人： Kimio Tatsuno ,  Tetsuo Andou ,  Tsuyoshi Miyai ,  Sten Helmfrid ,  Masahiko Takahashi ,  Koji Muraoka ,  Shigeru Nakamura

发明人： Kimio Tatsuno ,  Tetsuo Andou ,  Tsuyoshi Miyai ,  Sten Helmfrid ,  Masahiko Takahashi ,  Koji Muraoka ,  Shigeru Nakamura

IPC分类号： G11B7/125 ,  H01S3/00 ,  H01S3/0941 ,  H01S3/108 ,  H01S3/109

CPC分类号： G11B7/127 ,  H01S3/109 ,  H01S3/0064 ,  H01S3/09415 ,  H01S3/108

摘要： A short-wavelength laser having a stable output and an optical information processing system capable of high-density recording are disclosed. A solid-state laser is used as a light source, and a nonlinear optical crystal is arranged in a resonator in order to produce a short wavelength by means of a solid-state laser. The retardation of the nonlinear optical crystal is controlled by determining the length of the nonlinear optical crystal. A solid-state laser device having a stable output with the noise removed from a pumping power light source is also provided. Further, the solid-state laser device is used as a light source for the optical information processing system, and the light of irrelevant wavelengths contained in the light from the solid-state laser device are removed by a device having the ability to select wavelengths. Thus, not only a stable light source with a short wavelength but also an optical information processing system capable of high-density recording are realized.

摘要翻译： 公开了具有稳定输出的短波长激光器和能够进行高密度记录的光学信息处理系统。 使用固态激光器作为光源，并且在谐振器中布置非线性光学晶体，以便通过固态激光器产生短波长。 通过确定非线性光学晶体的长度来控制非线性光学晶体的延迟。 还提供了具有从泵浦功率光源去除的噪声的稳定输出的固态激光器件。 此外，固体激光装置用作光学信息处理系统的光源，并且通过具有选择波长的能力的装置去除来自固体激光装置的光中包含的不相关波长的光。 因此，不仅实现了具有短波长的稳定光源，而且实现了能够进行高密度记录的光信息处理系统。

公开(公告)号：US06678432B2

公开(公告)日：2004-01-13

申请号：US09785451

申请日：2001-02-20

申请人： Junji Shigeta ,  Kimio Tatsuno ,  Masataka Shirai

发明人： Junji Shigeta ,  Kimio Tatsuno ,  Masataka Shirai

IPC分类号： G02B613

CPC分类号： H01S5/02216 ,  H01S5/02415 ,  H01S5/026 ,  H01S5/0264 ,  H01S5/0683 ,  H01S5/4031

摘要： To resolve a problem in which in an optical output and wavelength monitor integrated type semiconductor laser module monolithically integrated in parallel with a plurality of semiconductor lasers, since light emitting positions of the respective semiconductor lasers differ, an allowable range of an optical incident position of the monitor is exceeded, the optical incident position of the monitor is confined in the allowable range by integrating backward optical waveguides for guiding backward beam of the respective semiconductor lasers to a narrow range at a backward end of a semiconductor chip along with the semiconductor lasers, whereby there can be easily realized a semiconductor laser module with a built-in optical monitor even in the case of the chip integrated with the plurality of semiconductor lasers and can be realized an inexpensive optical module having high function.

摘要翻译： 为了解决在与多个半导体激光器并联地单片集成的光输出和波长监视器集成型半导体激光器模块中的问题，由于各个半导体激光器的发光位置不同，所以光入射位置的允许范围 监视器被超过，通过将反射光波导集成在半导体激光器的半导体芯片的后端，将各个半导体激光器的反向光束集成到窄范围内，将监视器的光学入射位置限制在允许范围内，由此 即使在与多个半导体激光器集成的芯片的情况下，也可以容易地实现具有内置光学监视器的半导体激光器模块，并且可以实现具有高功能的便宜的光学模块。

公开(公告)号：US06597712B2

公开(公告)日：2003-07-22

申请号：US09934562

申请日：2001-08-23

申请人： Kimio Tatsuno ,  Hiroaki Furuichi ,  Kazumi Kawamoto ,  Katsumi Kuroguchi

发明人： Kimio Tatsuno ,  Hiroaki Furuichi ,  Kazumi Kawamoto ,  Katsumi Kuroguchi

IPC分类号： H01S313

CPC分类号： H01S5/0687 ,  H01S5/0064 ,  H01S5/0085 ,  H01S5/02216 ,  H01S5/02284 ,  H01S5/4012

摘要： In a wavelength locking optical system, a resonator is formed between a wavelength deviation detection device and a facet of the laser diode, which makes a control signal unstable. A solution to this problem is to arrange polarization controlling elements between a wavelength deviation detection filter and a laser diode to stabilize the deviation signal, and to perform wavelength-locking with the stabilizer signal.

摘要翻译： 在波长锁定光学系统中，在波长偏差检测装置和激光二极管的刻面之间形成谐振器，这使得控制信号不稳定。 该问题的解决方案是在波长偏差检测滤波器和激光二极管之间布置偏振控制元件以稳定偏差信号，并且利用稳定器信号执行波长锁定。

公开(公告)号：US5737467A

公开(公告)日：1998-04-07

申请号：US569915

申请日：1995-12-08

申请人： Takeshi Kato ,  Shinji Tsuji ,  Kimio Tatsuno ,  Satoru Kikuchi ,  Masahiro Ojima ,  Yoichi Yasuda

发明人： Takeshi Kato ,  Shinji Tsuji ,  Kimio Tatsuno ,  Satoru Kikuchi ,  Masahiro Ojima ,  Yoichi Yasuda

IPC分类号： G02B6/30 ,  G02B6/42 ,  G02B6/36

CPC分类号： G02B6/421 ,  G02B6/30 ,  G02B6/4242 ,  G02B6/4261 ,  G02B6/4265

摘要： An optical fiber is held in a ferrule, and then the ferrule is located in a positioning groove formed in a substrate, thereby aligning the optical fiber with an optical device bonded to a surface of the substrate. Then, a lid is placed on the substrate in such a manner that the ferrule is located in a positioning groove formed in the lid and that the optical device is received in a cavity formed in the lid. The ferrule is thus held between the two grooves, and in this condition a resin is filled in the two grooves, thereby retaining the ferrule. Then, the lid is sealingly secured to the substrate. After these parts are thus assembled together, this assembly is put in dies, and then a package is molded.

摘要翻译： 将光纤保持在套圈中，然后套圈位于形成在基板中的定位槽中，从而使光纤与结合到基板的表面的光学装置对准。 然后，将盖子放置在基板上，使得套圈位于形成在盖中的定位槽中，并且光学装置被容纳在形成在盖中的空腔中。 因此，套圈保持在两个槽之间，并且在这种情况下，树脂被填充在两个槽中，从而保持套圈。 然后，盖被密封地固定到基板上。 在将这些部件组装在一起之后，将该组件放入模具中，然后封装成型。

公开(公告)号：US4759628A

公开(公告)日：1988-07-26

申请号：US826341

申请日：1986-02-05

申请人： Kimio Tatsuno ,  Yoshito Tsunoda ,  Masatoshi Ohtake ,  Keiji Kataoka ,  Seiji Yonezawa

发明人： Kimio Tatsuno ,  Yoshito Tsunoda ,  Masatoshi Ohtake ,  Keiji Kataoka ,  Seiji Yonezawa

IPC分类号： G01J9/02 ,  G01B9/02 ,  G01J3/45 ,  G01J9/04

CPC分类号： G01J9/04 ,  G01J3/45

摘要： In an interferometry wherein a light beam from a light source is divided in two, one of which is used as a reference beam and the other beam is used as an inspecting beam, and the two beams are projected again on an identical plane so as to form an interference pattern; a wavelength scanning type laser diode interferometry characterized in that a laser diode is employed as the light source, and that an injection current of the laser diode is modulated thereby to scan a wavelength of the laser diode and to change an intensity distribution of the interference pattern.

摘要翻译： 在其中来自光源的光束被分成两部分的干涉测量中，其中一个用作参考光束，另一个光束用作检查光束，并且两个光束再次投射在相同的平面上，以便 形成干扰模式; 波长扫描型激光二极管干涉测量法，其特征在于使用激光二极管作为光源，并且调制激光二极管的注入电流，从而扫描激光二极管的波长并改变干涉图案的强度分布 。

公开(公告)号：US4274101A

公开(公告)日：1981-06-16

申请号：US76427

申请日：1979-09-17

申请人： Keiji Kataoka ,  Kimio Tatsuno ,  Susumu Saito

发明人： Keiji Kataoka ,  Kimio Tatsuno ,  Susumu Saito

IPC分类号： G02B26/12 ,  B41J2/455 ,  B41J2/47 ,  G02B7/28 ,  G02B26/10 ,  G11B7/09 ,  H01S3/101 ,  H04N1/036 ,  G01D9/42 ,  G02B7/02 ,  G02B27/17

CPC分类号： B41J2/442 ,  B41J2/471 ,  G02B26/10 ,  H04N1/036

摘要： In a laser beam recording apparatus comprising a laser source, an optical modulator for modulating the intensity of the laser beam from the laser source in response to an electrical signal, an optical scanner for deflecting the modulated laser beam, a recording medium on which the deflected laser beam is recorded, and a optical system for guiding the emitted laser beam from the laser source to recording medium, an automatic focusing device is provided for vibrating a lens or mirror in the optical system in synchronism with the scanning provided by the optical scanner, thereby converging the deflected laser beam into a small spot at any position on the recording medium.

摘要翻译： 在包括激光源的激光束记录装置中，响应于电信号调制来自激光源的激光束的强度的光调制器，用于偏转调制的激光束的光学扫描器，其上偏转的记录介质 记录激光束，并且提供用于将发射的激光束从激光源引导到记录介质的光学系统，自动聚焦装置用于与由光学扫描器提供的扫描同步地在光学系统中振动透镜或反射镜， 从而将偏转的激光束会聚到记录介质上的任何位置的小斑点。