公开(公告)号：US5036504A

公开(公告)日：1991-07-30

申请号：US277735

申请日：1988-11-30

申请人： Yuzo Ono ,  Akitomo Ohba ,  Yasuo Kimura

发明人： Yuzo Ono ,  Akitomo Ohba ,  Yasuo Kimura

IPC分类号： G11B7/09 ,  G11B7/135

CPC分类号： G11B7/1381 ,  G11B7/0903 ,  G11B7/0912 ,  G11B7/0916 ,  G11B7/1353 ,  G11B7/1378

摘要： An optical head includes a reflection type grating lens for dividing specified polarized lights into a reflected light and a diffracted light, a device for detecting a RF signal from the reflected light of the grating lens, and a device for detecting focusing and tracking error signals from the diffracted light of the grating lens. The grating lens consists of a plurality of domains having different optical properties respectively, so that the reflected and diffracted lights are obtained. The optical head further includes a total reflection prism to compensate a phase difference between polarized lights orthogonal to a grating groove of the grating lens and parallel thereto, and a polarizing prism for dividing the reflected light into two polarized lights orthogonal to each other in polarization thereof. Thus, a simple, miniaturized, and inexpensive optical head is obtained.

公开(公告)号：US4945529A

公开(公告)日：1990-07-31

申请号：US940007

申请日：1986-12-10

申请人： Yuzo Ono ,  Yutaka Yamanaka ,  Yasuo Kimura

发明人： Yuzo Ono ,  Yutaka Yamanaka ,  Yasuo Kimura

IPC分类号： G11B7/09 ,  G11B7/135

CPC分类号： G11B7/1381 ,  G11B7/0901 ,  G11B7/0916 ,  G11B7/1353

摘要： For use in combination with an optical source for generating a coherent beam along a main optical axis, an optical head device comprises a diffraction grating having a plurality of grating regions which are responsive to the coherent beam for directing a zeroth-order diffracted beam to a focussing lens and are responsive to an optical beaem reflected from an optical recording medium for directing sidewards diffracted beams to an optical detector assembly. An effective area of a diameter of about 5 mm is sufficient for the diffraction grating. Each sidewards diffracted beam may form an angle of 20.degree. with the main optical axis. The optical detector assembly is used in detecting focussing and tracking errors for the recording medium and can be used in reproducing optical information from the recording medium. A six-partitioned optical detector assembly is preferred when the grating regions are four in number. Either a four-partitioned or a three-partitioned optical detector assembly is preferred when the grating regions are two in number. Depending on the grating regions, the optical detector assembly preferably has two optical detector elements which are placed on different levels relative to the diffraction grating.

摘要翻译： 为了与用于沿着主光轴产生相干光束的光源组合使用，光学头装置包括具有多个光栅区域的衍射光栅，所述光栅区域响应于相干光束，用于将零级衍射光束引导到 并且响应于从光学记录介质反射的用于将侧向衍射光束引导到光学检测器组件的光学beaem。 对于衍射光栅，直径约5mm的有效面积是足够的。 每个侧向衍射光束可以与主光轴形成20°的角度。 光检测器组件用于检测记录介质的聚焦和跟踪误差，并且可以用于从记录介质再现光信息。 当光栅区域数量为四个时，优选六分区光学检测器组件。 当光栅区域是两个数量时，优选四分区或三分区光学检测器组件。 根据光栅区域，光学检测器组件优选地具有相对于衍射光栅放置在不同级别的两个光学检测器元件。

公开(公告)号：US5493555A

公开(公告)日：1996-02-20

申请号：US469787

申请日：1995-06-06

申请人： Yasuo Kimura ,  Yuzo Ono

发明人： Yasuo Kimura ,  Yuzo Ono

IPC分类号： G11B7/09 ,  G11B7/135 ,  G11B11/105 ,  G11B7/00

CPC分类号： G11B11/10576 ,  G11B11/10532 ,  G11B11/10543 ,  G11B7/0901 ,  G11B7/0916 ,  G11B7/1353 ,  G11B7/1381

摘要： A light radiated from a light source is focused on an optical disc by a focusing lens. A light reflected from the optical disc is introduced to a signal detection system. In the signal detection system, the introduced light is diffracted by a birefringent diffraction grating element utilizing an optical crystal. The diffracted light is received by a photodetector. Consequently, focus and track errors are detected, and information stored in the optical disc is re-produced.

摘要翻译： 从光源照射的光通过聚焦透镜聚焦在光盘上。 从光盘反射的光被引入信号检测系统。 在信号检测系统中，引入的光被利用光学晶体的双折射衍射光栅元件衍射。 衍射光被光检测器接收。 因此，检测到焦点和轨道错误，并且重新生成存储在光盘中的信息。

公开(公告)号：US4753502A

公开(公告)日：1988-06-28

申请号：US813164

申请日：1985-12-24

申请人： Yuzo Ono

发明人： Yuzo Ono

IPC分类号： G02B26/10 ,  G02B1/00

CPC分类号： G02B26/106

摘要： A laser beam scanner that includes a laser source emitting light at a frequency (X.sub.2) and a rotatable hologram produced by interfering lasers at a frequency (X.sub.1) and located a distance (a) from the laser source and a scanned surface at a distance (b) from the hologram. The hologram satisfies the image forming relationship 1/F.sub.1 =1/f.sub.0 +1/f.sub.R where F.sub.1 is the focal distance of the hologram and f.sub.0 and f.sub.R are the respective distances of the hologram from the divergent and convergent points where the interfering lasers are located. The laser source is located in a position away from the optical axis of the hologram so as to enlarge the diffraction angle. However, in order to compensate for resulting astigmatism, the hologram is produced by selecting the positions of the two interfering lasers in order to satisfy the image formation relationship in a region distant from the hologram optical axis and not to satisfy the image formation relationship on the optical axis.

摘要翻译： 一种激光束扫描器，其包括以频率（X2）发射光的激光源和以频率（X1）干涉激光器并且距离激光源和扫描表面距离（λ）的距离（a）产生的可旋转全息图， b）从全息图。 全息图满足图像形成关系1 / F1 = 1 / f0 + 1 / fR其中F1是全息图的焦距，f0和fR是全息图与干涉激光器所在的发散和收敛点的距离 。 激光源位于远离全息图的光轴的位置以扩大衍射角。 然而，为了补偿所产生的像散，通过选择两个干涉激光器的位置来产生全息图，以便在远离全息光轴的区域中满足图像形成关系，并且不满足图像形成关系 光轴。

公开(公告)号：US4732654A

公开(公告)日：1988-03-22

申请号：US75247

申请日：1987-07-15

申请人： Atsuyoshi Yamauchi ,  Seiya Iguchi ,  Yuzo Ono ,  Hiroshi Kimura ,  Satoshi Morita

发明人： Atsuyoshi Yamauchi ,  Seiya Iguchi ,  Yuzo Ono ,  Hiroshi Kimura ,  Satoshi Morita

IPC分类号： C07D209/04 ,  C07D209/08 ,  B01D3/14

CPC分类号： C07D209/08

摘要： In an industrial process for preparing indole by reacting aniline and ethylene glycol, high boiling-point impurities and non-volatile substances are removed in advance from the reaction mixture either before the recovery of aniline from the reaction mixture or before the subsequent rectification of the resultant indole. Indole of a high purity can thus be obtained.

摘要翻译： 在用苯胺和乙二醇反应制备吲哚的工业方法中，在从反应混合物中回收苯胺之前或在随后的所得的精馏之前，从反应混合物中预先除去高沸点杂质和不挥发物质 吲哚。 因此可以获得高纯度的吲哚。

公开(公告)号：US5659531A

公开(公告)日：1997-08-19

申请号：US606272

申请日：1996-02-23

申请人： Yuzo Ono ,  Akitomo Oba

发明人： Yuzo Ono ,  Akitomo Oba

IPC分类号： G02B5/18 ,  G02B5/32 ,  G02B27/28 ,  G11B7/12 ,  G11B7/13 ,  G11B7/135 ,  G11B11/105 ,  G11B7/00 ,  G02B5/30

CPC分类号： G11B7/1353 ,  G02B27/28 ,  G02B5/1833 ,  G02B5/32 ,  G11B11/10543 ,  G11B7/123 ,  G11B7/131

摘要： An optical head device uses a birefringent diffraction grating polarizer configured in a reflection type. The device includes a polarizing hologram element which reflects the light from a light source to a converging lens system and diffracts the polarized light returning from a recording medium. A total reflection film is formed on a surface of a diffraction grating which is provided periodically by an ion exchange region and a dielectric film on a surface of a crystal plate having optically anisotropic characteristics. A polarizing beam splitter film formed on a surface of the polarizing hologram element has reflectivity and transmissivity having dependency on the polarization of the incident light. In another form, a polarizing hologram element includes a polarizing hologram which has diffractive efficiency having dependency on polarization of incident light and a polarizing beam splitter film which has reflectivity and transmissivity having dependency on the polarization of the incident light. The diffracted light is received by multi-split photodetectors. The arrangements enable to make the optical head device compact, light in weight and low cost.

摘要翻译： 光学头装置使用以反射型构造的双折射衍射光栅偏振器。 该装置包括将来自光源的光反射到会聚透镜系统并衍射从记录介质返回的偏振光的偏振全息元件。 在由具有光学各向异性特性的晶体板的表面上由离子交换区域和电介质膜周期性地设置的衍射光栅的表面上形成全反射膜。 形成在偏振光全息元件的表面上的偏振分束器膜具有依赖于入射光的偏振的反射率和透射率。 在另一种形式中，偏振全息元件包括具有与入射光的偏振有关的衍射效率的偏振全息图和具有依赖于入射光的偏振的反射率和透射率的偏振分束器膜。 衍射光被多分辨光电探测器接收。 这种布置使得光学头装置紧凑，重量轻并且成本低廉。

公开(公告)号：US5336875A

公开(公告)日：1994-08-09

申请号：US922786

申请日：1992-07-31

申请人： Yuzo Ono ,  Kazuhisa Shirakabe

发明人： Yuzo Ono ,  Kazuhisa Shirakabe

IPC分类号： G02B5/32 ,  G06K7/10 ,  G02B26/08 ,  G02B27/30

CPC分类号： G02B5/32 ,  G06K7/10663

摘要： In order to generate a Bessel beam at a location remote from an optical arrangement, the optical arrangement includes, a first beam converging element which is illuminated by a collimated beam, a second beam converging element which is illuminated by a beam which has passed through the first beam converging element. The first and second beam converging elements ere arranged in a manner to radiate a ring beam which is parallel with an optical axis. A third beam converging element is further provided which is illuminated by the ring beam. The third beam converging element is arranged to generate a non-diffractive beam at a location which is remote therefrom. Further, an improvement of a bar code reader is disclosed, which includes a laser source for producing a laser beam. A laser beam deflecting member is provided to deflect the laser beam so as to form a scan pattern comprised of two scan lines. The two scan lines are oriented at a predetermined angle with respect to one another. A combination of photo sensor and electric circuitry is provided to detect the beginning of the scan pattern and to discriminate between the two scan lines.

摘要翻译： 为了在远离光学装置的位置处产生贝塞尔光束，光学装置包括由准直光束照射的第一光束会聚元件，第二光束会聚元件，其被已经通过 第一光束会聚元件。 第一和第二光束会聚元件以辐射与光轴平行的环形光束的方式布置。 还提供了由环形光束照亮的第三光束会聚元件。 第三光束会聚元件布置成在远离其的位置处产生非衍射光束。 此外，公开了条形码读取器的改进，其包括用于产生激光束的激光源。 提供激光束偏转构件以使激光束偏转以形成由两条扫描线组成的扫描图案。 两个扫描线相对于彼此以预定角度定向。 提供光传感器和电路的组合以检测扫描图案的开始并区分两条扫描线。

公开(公告)号：US5270996A

公开(公告)日：1993-12-14

申请号：US968477

申请日：1992-10-29

申请人： Yuzo Ono

发明人： Yuzo Ono

IPC分类号： G11B7/09 ,  G11B7/135

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/0916 ,  G11B7/094

摘要： An optical head comprises a grating lens for diffracting light beam separated from the light beam path. The grating lens is composed of a plurality of regions having different focal length and diffraction direction so that the light beam is divided into a predetermined number of light beams. Therefore, a conventional beam splitter or polarizing beam splitter is replaced by a grating lens so that the optical head can be smaller and lighter, and the precision of detecting a track and focus errors is improved.

摘要翻译： 光头包括用于衍射从光束路径分离的光束的光栅透镜。 光栅透镜由具有不同焦距和衍射方向的多个区域组成，使得光束被分成预定数量的光束。 因此，常规的光束分离器或偏振光束分离器被光栅透镜替代，使得光学头可以更小和更轻，并且提高了检测轨迹和聚焦误差的精度。

公开(公告)号：US3942867A

公开(公告)日：1976-03-09

申请号：US533993

申请日：1974-12-18

申请人： Yuzo Ono

发明人： Yuzo Ono

IPC分类号： G11B7/0037 ,  G11B7/085 ,  G11B7/135 ,  G11B7/14 ,  G11B11/105 ,  G11C13/04 ,  G02B5/14

CPC分类号： G11B7/1384 ,  G11B11/10543 ,  G11B11/1055 ,  G11B11/10576 ,  G11B7/0037 ,  G11B7/085 ,  G11B7/14 ,  G11C13/04

摘要： An optical memory includes a light beam source, converting means for causing the light beam to take on a predetermined spot size, and a light-focusing fiber guide having a refractive index distribution decreasing radially outwardly from its center axis. A memory medium is arranged to be irradiated by an output beam from the fiber guide. The fiber guide has input and output end faces perpendicular to the direction from which the light beam irradiates the surface of the memory medium. The length of the fiber guide is equal to an integral multiple and a half-integral multiple, respectively, of the characteristic propogation pitch of the fiber guide corresponding to conditions in which the directions of the input and output beams are anti-parallel and parallel.

摘要翻译： 光学存储器包括光束源，用于使光束达到预定光斑尺寸的转换装置，以及具有从其中心轴线径向向外减小的折射率分布的光聚焦光纤引导件。 存储介质布置成由来自光纤引导件的输出光束照射。 光纤引导件具有垂直于光束照射存储介质表面的方向的输入和输出端面。 纤维引导件的长度分别等于纤维引导件的特征传播间距的整体倍数和半整数倍，这与输入和输出光束的方向反平行和平行的条件相对应。

公开(公告)号：US06459004B1

公开(公告)日：2002-10-01

申请号：US09763547

申请日：2001-02-23

申请人： Yuzo Ono ,  Kouichirou Terada ,  Kiyoshi Mizuma ,  Mikio Shibasaki

发明人： Yuzo Ono ,  Kouichirou Terada ,  Kiyoshi Mizuma ,  Mikio Shibasaki

IPC分类号： C07C3752

CPC分类号： C07C37/52 ,  C07C39/04 ,  C07C39/19

摘要： A cleavage method of bisphenols capable of yielding a product containing high-purity isopropenylphenol and phenol is disclosed, including (1) a cleavage step of supplying the mixture containing bisphenols together with chroman derivatives and flavan derivatives formed as by-products in the production process of bisphenols to a cleaving vessel and carrying out a cleavage reaction in the presence of a basic or acidic catalyst at a temperature of from 150 to 260° C. under a reduced pressure condition of not higher than 300 mmHg, (2) a distillation step of supplying the cleavage step product formed in the cleavage step in a vapor state to a distillation column and distilling at a temperature of from 130 to 200° C. under a reduced pressure condition of not higher than 300 mmHg, and (3) a reflux step of condensing the distillate from the distillation step, refluxing a part thereof to the distillation step at a reflux ratio of from 0.01 to 3, and discharging out the residue from the system.

摘要翻译： 公开了能够产生含有高纯度异丙烯基苯酚和苯酚的产物的双酚的裂解方法，其包括（1）在含有双酚的混合物的制造过程中将作为副产物形成的苯并二氢吡喃衍生物和黄烷衍生物一起供给的裂解步骤 双酚进行裂解容器，在碱性或酸性催化剂存在下，在150〜260℃的温度下，在不高于300mmHg的减压条件下进行裂解反应，（2）蒸馏步骤 将在蒸气状态的裂解步骤中形成的裂解步骤产物供应到蒸馏塔，并在不高于300mmHg的减压条件下在130至200℃的温度下蒸馏，和（3）回流步骤 从蒸馏步骤冷凝馏出物，将其一部分以0.01至3的回流比回流到蒸馏步骤，并从系统中排出残余物。