公开(公告)号：US5432807A

公开(公告)日：1995-07-11

申请号：US208139

申请日：1994-03-09

申请人： Yoji Okazaki ,  Chiaki Goto ,  Hiroaki Hyuga ,  Akinori Harada

发明人： Yoji Okazaki ,  Chiaki Goto ,  Hiroaki Hyuga ,  Akinori Harada

IPC分类号： G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  H01S3/109 ,  H01S3/10

CPC分类号： G02F1/37 ,  H01S3/109 ,  G02F1/3553 ,  G02F2001/3546

摘要： In an optical wavelength converting apparatus, a fundamental wave impinges upon a crystal of a nonlinear optical material, the type II of phase matching between the fundamental wave and its second harmonic is effected, and the second harmonic of the fundamental wave is thereby radiated out of the optical wavelength converting apparatus. Two crystals constituted of the same material are employed as the crystal. The two crystals have equal lengths and are located in orientations such that corresponding optic axes may be shifted 90.degree. from each other. The optical wavelength converting apparatus yields the second harmonic having the maximum possible output power and yet can be kept small in size and low in cost.

摘要翻译： 在光波长变换装置中，基波对非线性光学材料的晶体入射，实现了基波和二次谐波之间的相位匹配型II，从而将基波的二次谐波从 光波长转换装置。 使用由相同材料构成的两个晶体作为晶体。 两个晶体具有相等的长度并且位于取向上，使得相应的光轴彼此相差90度。 光波长转换装置产生具有最大可能输出功率的二次谐波，并且可以保持尺寸小，成本低。

公开(公告)号：US5343485A

公开(公告)日：1994-08-30

申请号：US937970

申请日：1992-09-01

申请人： Yoji Okazaki

发明人： Yoji Okazaki

IPC分类号： G02F1/35 ,  G02F1/355 ,  H01S3/06 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/108 ,  H01S3/109 ,  H01S3/16 ,  H01S3/23 ,  H01S3/10

CPC分类号： H01S3/09415 ,  H01S3/10092 ,  H01S3/0604 ,  H01S3/0627 ,  H01S3/109 ,  H01S3/1673

摘要： In a laser diode pumped solid state laser, a primary solid state laser medium containing a rare earth metal is pumped by a semiconductor laser, and the wavelength of a laser beam having been obtained from the solid state laser oscillation is converted by a nonlinear optical material into a different wavelength. A solid state laser medium for injection locking is located between the primary solid state laser medium and the semiconductor laser. The solid state laser medium for injection locking is pumped by the semiconductor laser and produces a laser beam for injection locking through solid state laser oscillation in a single longitudinal mode, such that the laser beam for injection locking may impinge upon the primary solid state laser medium.

摘要翻译： 在激光二极管泵浦固体激光器中，通过半导体激光器泵浦包含稀土金属的主要固态激光介质，并且从固态激光振荡获得的激光束的波长由非线性光学材料转换 变成不同的波长。 用于注入锁定的固态激光介质位于主固态激光介质和半导体激光器之间。 用于注射锁定的固态激光介质由半导体激光器泵浦，并且通过固体激光器振荡在单一纵向模式中产生用于注入锁定的激光束，使得用于注入锁定的激光束可能撞击到主固态激光介质 。

公开(公告)号：US5253102A

公开(公告)日：1993-10-12

申请号：US984354

申请日：1992-12-02

申请人： Yoji Okazaki

发明人： Yoji Okazaki

IPC分类号： G02B5/30 ,  G02F1/35 ,  G02F1/37 ,  H01S3/10 ,  H01S3/109

CPC分类号： H01S3/109 ,  G02F1/3534 ,  G02F1/37

摘要： An optical wavelength converter system which has a crystal of a first nonlinear optical material for converting an incoming laser beam into a second harmonic wave and a crystal of a second nonlinear optical material for converting the laser beam and the second harmonic wave into a sum frequency wave. A phase compensator plate is interposed between the crystal of the first nonlinear optical material and the crystal of the second nonlinear optical material, whereupon the laser beam and the second harmonic wave are aligned substantially in the same linear polarization before they enter the crystal of the second nonlinear optical material.

摘要翻译： 一种光波长转换器系统，其具有用于将入射激光束转换为二次谐波的第一非线性光学材料的晶体和用于将激光束和二次谐波转换成和频波的第二非线性光学材料的晶体 。 在第一非线性光学材料的晶体和第二非线性光学材料的晶体之间插入相位补偿板，于是激光束和二次谐波在它们进入第二非线性光学材料的晶体之前基本上被排列成相同的线偏振 非线性光学材料。

公开(公告)号：US5153110A

公开(公告)日：1992-10-06

申请号：US832630

申请日：1992-02-12

申请人： Kiyoshi Kawai ,  Yoji Okazaki

发明人： Kiyoshi Kawai ,  Yoji Okazaki

IPC分类号： G03C5/08 ,  G03C1/035 ,  G03C7/26 ,  G03C7/30 ,  G03C7/392

CPC分类号： G03C7/30 ,  G03C1/035 ,  G03C7/3924 ,  G03C2001/03517 ,  G03C2001/03541

摘要： A method of forming colored images by exposing and then developing a silver halide color photographic photosensitive material which has a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer and a red sensitive silver halide emulsion layer on a support. In the method, silver halide grains which have a silver bromide containing phase of which the silver bromide content is from 10 to 60 mol % localized at the surface or within the grains, and in which from 95 to 99.5 mol % (average value) of the grains as a whole in the emulsion layer consists of silver chloride, the remainder consisting of substantially silver iodide free silver bromide, are included in at least one of the green sensitive and red sensitive silver halide emulsion layers. The material is subjected to a scanning exposure with blue light, green light and red light.

公开(公告)号：US5151714A

公开(公告)日：1992-09-29

申请号：US529404

申请日：1990-05-29

申请人： Yoshiharu Okino ,  Yoji Okazaki

发明人： Yoshiharu Okino ,  Yoji Okazaki

IPC分类号： G03G15/01 ,  G02B26/10 ,  G02B26/12 ,  H04N1/50

CPC分类号： H04N1/504

摘要： The essential feature of the color image recording apparatus of the present invention is that it uses a laser light source capable of simultaneous emission of laser beams associated with exposure to R, G and B light. The apparatus also uses a light deflector and a device for selectively reflecting or transmitting said laser beams, for example, a rotating polygonal mirror in which at least one of the reflecting faces has a different spectral characteristic of reflection than other faces or a light deflector and at least one color filter that operates in synchronism with the light deflector.In the present invention, a laser beam having a wavelength associated with exposure to light either one or R, G and B colors is separated from the light beams emitted from the laser light source, and the recording material is exposed to successive beams of different colors, one for each scanning line, to insure exposure for a full-color image by three scanning lines. Since this obviates the need for providing the reflecting mirror and the dichroic mirrors that have been necessary to align the optical axes of R, G and B laser beams in the prior art color image recording apparatuses, it becomes possible to construct a compact and inexpensive color image recording apparatus.

摘要翻译： 本发明的彩色图像记录装置的基本特征是使用能够同时发射与曝光于R，G和B光的激光束同时发射的激光光源。 该装置还使用光偏转器和用于选择性地反射或透射所述激光束的装置，例如旋转多面镜，其中至少一个反射面具有与其它面或光偏转器不同的反射光谱特性， 至少一个与所述光偏转器同步操作的滤色器。 在本发明中，与从激光光源发射的光束分离具有与曝光一样的波长的激光，或从R，G，B两种颜色的激光与激光光源发射的光束分离，并将记录材料暴露于不​​同颜色的连续光束 ，每个扫描线一个，以确保通过三条扫描线曝光全色图像。 由于不需要在现有技术的彩色图像记录装置中设置用于对准R，G和B激光束的光轴所必需的反射镜和分色镜，所以可以构成紧凑且廉价的颜色 图像记录装置。

公开(公告)号：US5124999A

公开(公告)日：1992-06-23

申请号：US406018

申请日：1989-09-12

申请人： Yoji Okazaki ,  Koji Kamiyama

发明人： Yoji Okazaki ,  Koji Kamiyama

IPC分类号： G02F1/35 ,  G02F1/355 ,  G02F1/361 ,  G02F1/37 ,  H01S3/06 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/108 ,  H01S3/109

CPC分类号： H01S3/0615 ,  H01S3/09415 ,  H01S3/108 ,  H01S3/109

摘要： A laser-diode-pumped solid-state laser including a solid-state laser rod doped with a rare-earth material such as neodymium, a semiconductor laser for emitting a laser beam to pump said solid-state laser rod to oscillate a beam, and a resonator including a bulk single crystal of organic nonlinear optical material for converting the wavelength of the beam which is oscillated by said solid-state laser rod. The organic nonlinear optical material is preferably PRA, MNA, NPP, NPAN, MAP, m-NA, or the like. The semiconductor laser may comprise a single-transverse-mode, or a single-longitudinal-mode semiconductor laser.

摘要翻译： 激光二极管泵浦固体激光器，其包括掺杂有诸如钕的稀土材料的固态激光棒，用于发射激光束以泵浦所述固态激光棒以振荡光束的半导体激光器;以及 包括用于转换由所述固态激光棒振荡的光束的波长的有机非线性光学材料的体单晶的谐振器。 有机非线性光学材料优选为PRA，MNA，NPP，NPAN，MAP，m-NA等。 半导体激光器可以包括单横模或单纵模半导体激光器。

公开(公告)号：US5080507A

公开(公告)日：1992-01-14

申请号：US585535

申请日：1990-09-20

申请人： Akinori Harada ,  Yoji Okazaki ,  Koji Kamiyama

发明人： Akinori Harada ,  Yoji Okazaki ,  Koji Kamiyama

IPC分类号： G02F1/35 ,  C09K9/02 ,  G02F1/355 ,  G02F1/361 ,  G02F1/37 ,  G02F1/377 ,  G02F1/383

CPC分类号： G02F1/3612 ,  G02F1/377 ,  G02F1/383 ,  G02F2001/374

摘要： A fundamental wave is caused to enter a Cerenkov-radiation type optical wavelength converter device which is formed of a single-crystal organic nonlinear optical material of an orthorhombic system of mm2 point group disposed in a cladding as a waveguide and a wavelength-converted wave such as a second harmonic whose wavelength within the range of 430 to 500 nm is extracted. The wavelength of the fundamental wave is selected so that the wavelength of the wavelength-converted wave becomes longer than the absorption edge of the organic nonlinear optical material by at least 30 nm. The fundamental wave is linearly polarized in the direction of the x-optic-axis or the y-optic-axis of the crystal of the organic nonlinear optical material and then caused to enter the optical wavelength converter device, and a wavelength-converted wave which is linearly polarized in the z-optic-axis of the crystal is extracted.

公开(公告)号：US07403554B2

公开(公告)日：2008-07-22

申请号：US10952719

申请日：2004-09-30

申请人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Takayuki Katoh

发明人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Takayuki Katoh

IPC分类号： H01S3/094

CPC分类号： H01S3/067 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0602 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/1603 ,  H01S3/161 ,  H01S3/1615 ,  H01S5/32341 ,  H01S2302/00

摘要： A solid-state laser crystal constituting a laser-diode-excited solid-state laser apparatus or an optical fiber constituting a fiber laser apparatus or fiber laser amplifier is doped with one of Ho3+, Sm3+, Eu3+, Dy3+, Er3+, and Tb3+ so that a laser beam is emitted from the solid-state laser crystal or the optical fiber, or incident light of the fiber laser amplifier is amplified, by one of the transitions from 5S2 to 5I7, from 5S2 to 5I8, from 4G5/2 to 6H5/2, from 4G5/2 to 6H7/2, from 4F3/2 to 6H11/2, from 5D0 to 7F2, from 4F9/2 to 6H13/2, from 4F9/2 to 6H11/2, from 4S3/2 to 4I15/2, from 2H9/2 to 4I13/2, and from 5D4 to 7F5. The above solid-state laser-crystal or optical fiber is excited with a GaN-based compound laser diode.

公开(公告)号：US07362789B2

公开(公告)日：2008-04-22

申请号：US10952760

申请日：2004-09-30

申请人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Takayuki Katoh

发明人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Takayuki Katoh

IPC分类号： H01S3/094

CPC分类号： H01S3/067 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0602 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/1603 ,  H01S3/161 ,  H01S3/1615 ,  H01S5/32341 ,  H01S2302/00

摘要： A solid-state laser crystal constituting a laser-diode-excited solid-state laser apparatus or an optical fiber constituting a fiber laser apparatus or fiber laser amplifier is doped with one of Ho3+, Sm3+, Eu3+, Dy3+, Er3+, and Tb3+ so that a laser beam is emitted from the solid-state laser crystal or the optical fiber, or incident light of the fiber laser amplifier is amplified, by one of the transitions from 5S2 to 5I7, from 5S2 to 5I8, from 4G5/2 to 6H5/2, from 4G5/2 to 6H7/2, from 4F3/2 to 6H11/2, from 5D0 to 7F2, from 4F9/2 to 6H13/2, from 4F9/2 to 6H11/2, from 4S3/2 to 4I15/2, from 2H9/2 to 4I13/2, and from 5D4 to 7F5. The above solid-state laser crystal or optical fiber is excited with a GaN-based compound laser diode.

公开(公告)号：US20080068695A1

公开(公告)日：2008-03-20

申请号：US11665494

申请日：2005-10-13

申请人： Takao Ozaki ,  Yoji Okazaki

发明人： Takao Ozaki ,  Yoji Okazaki

IPC分类号： G02B26/08 ,  G03F7/00

CPC分类号： G03F7/70791 ,  G03B27/32 ,  G03F7/70275 ,  G03F7/70291 ,  G03F7/70358

摘要： A tracing method in which tracing is performed by moving a spatial optical modulation device in a predetermined scanning direction relative to a tracing surface is provided. The spatial optical modulation device includes multitudes of tracing elements for modulating inputted light according to control signals transferred in accordance with tracing information. The method allows the spatial optical modulation device to perform the modulation rapidly to reduce the tracing time. The special modulation device is divided into a plurality of blocks A to D, and the control signals for each of the blocks A to D are transferred to the blocks in parallel.

摘要翻译： 提供了一种跟踪方法，其中通过相对于跟踪表面沿预定的扫描方向移动空间光学调制装置来执行跟踪。 空间光调制装置包括根据跟踪信息传送的控制信号调制输入光的多个跟踪元件。 该方法允许空间光调制装置快速执行调制以减少跟踪时间。 特殊调制装置被分成多个块A至D，并且块A至D中的每一个的控制信号并行传送到块。