公开(公告)号：US06816532B2

公开(公告)日：2004-11-09

申请号：US10143806

申请日：2002-05-14

申请人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Takayuki Katoh

发明人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Takayuki Katoh

IPC分类号： H01S3094

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.

摘要翻译： 构成激光二极管激光固体激光装置的固态激光晶体或构成光纤激光装置或光纤激光放大器的光纤掺杂有Ho 3+，Sm 3+， 3+，Dy 3+，Er 3+和Tb 3+，使得激光束从固态激光晶体或光纤发射，或者光纤激光放大器的入射光为 通过从<5> S2至<5> I7的从5S→5J8→4G5 / 2→6H5 / 2→4G5 / 2〜6 H7 / 2，从F3 / 2〜6H11 / 2，从5℃到0℃的F2，从F9 / 2到6的H13 / 2， 从4/3> 3/1> 1/2，从4/3> 911/2到<6> H11 / 2，从S3 / D4至<7> F5。 上述固态激光晶体或光纤被GaN基复合激光二极管激发。

公开(公告)号：US06764183B2

公开(公告)日：2004-07-20

申请号：US09805833

申请日：2001-03-14

申请人： Yoji Okazaki

发明人： Yoji Okazaki

IPC分类号： G03B2100

CPC分类号： G09G3/02 ,  B82Y20/00 ,  G02B26/101 ,  G03B21/2033 ,  H01S3/06729 ,  H01S3/094007 ,  H01S3/09408 ,  H01S3/0941 ,  H01S3/1613 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/041 ,  H01S5/141 ,  H01S5/18369 ,  H01S5/2036 ,  H01S5/32341 ,  H01S5/34326 ,  H01S5/34333 ,  H01S5/4093 ,  H04N9/3129

摘要： Disclosed herein is a color laser display that comprises a red laser light source for emitting red laser light, a green laser light source for emitting green laser light, and a blue laser light source for emitting blue laser light. An excitation solid laser unit (which has a solid-state laser crystal doped with Pr3+ and a GaN semiconductor laser element for exciting the solid-state laser crystal), a fiber laser unit (which has a fiber with a Pr3+-doped core and a GaN semiconductor laser element for exciting the fiber), or a semiconductor laser unit (which has a semiconductor laser element, employing a GaN semiconductor, and a surface-emitting semiconductor element), is employed as at least one of the red laser light source, the green laser light source, or the blue laser light source.

摘要翻译： 这里公开了一种彩色激光显示器，其包括用于发射红色激光的红色激光光源，用于发射绿色激光的绿色激光光源和用于发射蓝色激光的蓝色激光光源。 激光固体激光单元（其具有掺杂有Pr 3+的固体激光晶体和用于激发固态激光晶体的GaN半导体激光元件），光纤激光单元（其具有Pr < 3 +>掺杂的芯和用于激发光纤的GaN半导体激光元件）或半导体激光器单元（其具有采用GaN半导体的半导体激光元件和表面发射半导体元件）至少被用作 红色激光光源，绿色激光光源或蓝色激光光源之一。

公开(公告)号：US06760057B2

公开(公告)日：2004-07-06

申请号：US10144863

申请日：2002-05-15

申请人： Toshiro Hayakawa ,  Nobufumi Mori ,  Yoji Okazaki ,  Hiroyuki Hiiro

发明人： Toshiro Hayakawa ,  Nobufumi Mori ,  Yoji Okazaki ,  Hiroyuki Hiiro

IPC分类号： G03C100

CPC分类号： B41J2/442

摘要： An optical recording method in which an effective recording sensitivity in the recording of image information on a photosensitive material is raised, whereby a productivity is enhanced owing to lowered energy (laser power) required for the recording or a heightened recording speed. An image is recorded by projecting a light beam onto the photosensitive material formed on a base material backing. The optical recording method includes the steps of: (a) successively outputting pulse light whose duty factor is at most 50%, from a light source; (b) modulating the pulse light output from the light source, in accordance with an image signal, and then projecting the modulated pulse light onto the photosensitive material; and (c) recording the image by causing the pulse light to scan the photosensitive material.

摘要翻译： 提高了在感光材料上记录图像信息时的有效记录灵敏度的光记录方法，由于记录所需的能量（激光功率）降低或记录速度提高，从而提高了生产率。 通过将光束投影到形成在基材背衬上的感光材料上来记录图像。 光记录方法包括以下步骤：（a）从光源连续输出占空比最多为50％的脉冲光; （b）根据图像信号调制从光源输出的脉冲光，然后将调制的脉冲光投射到感光材料上; 和（c）通过使脉冲光扫描感光材料来记录图像。

公开(公告)号：US5933439A

公开(公告)日：1999-08-03

申请号：US877515

申请日：1997-06-17

申请人： Hiroaki Hyuga ,  Yoji Okazaki

发明人： Hiroaki Hyuga ,  Yoji Okazaki

IPC分类号： G02F1/37 ,  H01S3/082 ,  H01S3/098 ,  H01S3/109 ,  H01S3/137 ,  H01S3/16

CPC分类号： H01S3/08036 ,  H01S3/025 ,  H01S3/0401 ,  H01S3/08004 ,  H01S3/09415 ,  H01S3/109

摘要： An etalon is disposed in a resonator of a laser to make the laser oscillate in a single longitudinal mode. Opposite end faces of the etalon through which light travels are provided with coating by ion-assisted deposition to prevent output fluctuations of the laser due to changes in environmental moisture and/or aging of the laser. Preferably the coating is of HfO.sub.2 and SiO.sub.2. In accordance with a second aspect of the present invention, there is provided a single longitudinal mode laser comprising a resonator and an etalon which is disposed in the resonator to make the laser oscillate in a single longitudinal mode, wherein the improvement comprises that opposite end faces of the etalon through which light travels are provided with coating by ion-assisted deposition. Further, the resonator may be contained in an airtight casing.

摘要翻译： 标准具设置在激光器的谐振器中，以使激光器以单一纵向模式振荡。 通过离子辅助沉积，通过光线行进的标准具的相对端面由于环境湿度的变化和/或激光老化而导致激光器的输出波动。 优选地，涂层是HfO 2和SiO 2。 根据本发明的第二方面，提供了一种单纵模激光器，其包括谐振器和标准具，该谐振器和标准具设置在谐振器中以使激光器以单一纵向模式振荡，其中改进包括相对端面 通过离子辅助沉积使光线穿过其的标准具被提供涂层。 此外，谐振器可以容纳在气密的外壳中。

公开(公告)号：US5671240A

公开(公告)日：1997-09-23

申请号：US560121

申请日：1995-11-17

申请人： Yoji Okazaki

发明人： Yoji Okazaki

IPC分类号： G02F1/35 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/098 ,  H01S3/109 ,  H01S3/11

CPC分类号： H01S3/08036 ,  G02F2001/3548 ,  H01S3/08059 ,  H01S3/09415 ,  H01S3/109

摘要： In a solid state laser, a solid state laser medium is pumped with a pumping source. A wavelength selector element is disposed in a laser resonator and a twisting element makes a mode of an oscillating beam a twisted mode in the laser resonator.

摘要翻译： 在固态激光器中，固体激光介质用泵浦泵泵送。 波长选择器元件设置在激光谐振器中，并且扭转元件在激光谐振器中使振荡光束成为扭曲模式。

公开(公告)号：US5415978A

公开(公告)日：1995-05-16

申请号：US181255

申请日：1994-01-13

申请人： Masahiro Asami ,  Nobuharu Nozaki ,  Yoji Okazaki

发明人： Masahiro Asami ,  Nobuharu Nozaki ,  Yoji Okazaki

IPC分类号： B41J2/525 ,  G03B27/73 ,  G03C1/00 ,  G03C1/10 ,  G03C5/08 ,  G03C7/00 ,  G03C7/30 ,  H04N1/50

CPC分类号： H04N1/50 ,  G03C7/3041 ,  Y10S430/146 ,  Y10S430/164

摘要： An image is formed in a color photosensitive material through scanning exposure by using at least one semiconductor laser excited solid laser including a semiconductor laser, a non-linear optical element and means for controlling the temperature thereof as a light source for producing a laser beam. The laser beam is modulated by an external modulator in accordance with the image to be formed. Among the combinations of photosensitive layers and laser beams, at least two laser beam light sources are such that a laser beam has a wavelength falling within .+-.20 nm from the maximum wavelength in the spectral sensitivity distribution of the corresponding photosensitive layer. Each photosensitive layer has a spectral sensitivity distribution with a peak width of up to 40 nm. The method enables to form an image in a conventional silver halide photosensitive material having spectral sensitivity in the visible region using a cost effective light source, the resulting image having color generated to a satisfactory density, free of a density variation, and hence of high quality.

摘要翻译： 通过使用包括半导体激光器，非线性光学元件的至少一个半导体激光激光固体激光器和用于控制其温度作为用于产生激光束的光源的装置的扫描曝光，在彩色感光材料中形成图像。 激光束根据要形成的图像由外部调制器调制。 在感光层和激光束的组合中，至少两个激光束光源使得激光束的波长在对应的感光层的光谱灵敏度分布中与最大波长相差+/- 20nm。 每个感光层具有峰值宽度高达40nm的光谱灵敏度分布。 该方法能够使用成本有效的光源在可见光区域中具有光谱灵敏度的常规卤化银感光材料形成图像，所得到的图像产生的密度达到令人满意的密度，没有密度变化，因此具有高质量 。

公开(公告)号：US5341393A

公开(公告)日：1994-08-23

申请号：US29378

申请日：1993-03-10

申请人： Yoji Okazaki ,  Hiroaki Hyuga

发明人： Yoji Okazaki ,  Hiroaki Hyuga

IPC分类号： H01S3/06 ,  H01S3/0941 ,  H01S3/109 ,  H01S5/06 ,  H01S3/09

CPC分类号： H01S3/109 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/0627 ,  H01S3/09408 ,  H01S3/094084 ,  H01S3/09415 ,  H01S3/1095 ,  H01S3/1611

摘要： A laser-diode-pumped solid-state laser includes a solid-state laser rod which is doped with a rare-earth material such as neodium and has a wavelength converting function and a semiconductor laser which pumps the solid-state laser rod. Opposite end faces of the solid-state laser rod are formed into resonator mirrors, and a wavelength-converted wave such as a second harmonic of the laser beam oscillated by the solid-state laser rod or a sum frequency wave of a laser beam oscillated by the solid-state laser rod and a semiconductor laser beam emitted by a semiconductor laser is extracted.

摘要翻译： 激光二极管泵浦固态激光器包括掺杂有诸如氖钠等稀土材料并具有波长转换功能的固体激光棒和泵浦固态激光棒的半导体激光器。 固态激光棒的相对端面形成谐振镜，激光束的二次谐波等波长转换波由固态激光棒振荡，激光束的和频振荡由 提取固体激光棒和由半导体激光器发射的半导体激光束。

公开(公告)号：US5310918A

公开(公告)日：1994-05-10

申请号：US700285

申请日：1991-05-15

申请人： Nobuhiko Uchino ,  Masaki Okazaki ,  Makoto Ishihara ,  Akinori Harada ,  Yoji Okazaki ,  Kazumi Kubo

发明人： Nobuhiko Uchino ,  Masaki Okazaki ,  Makoto Ishihara ,  Akinori Harada ,  Yoji Okazaki ,  Kazumi Kubo

IPC分类号： C07D231/14 ,  C07D257/04 ,  C07D401/04 ,  G02F1/361 ,  G02F1/377 ,  C07D401/00 ,  C07D207/30 ,  C07D249/12

CPC分类号： C07D257/04 ,  C07D231/14 ,  C07D401/04 ,  G02F1/3612 ,  G02F1/377

摘要： Disclosed is a non-linear optical material represented by the following formula: ##STR1## wherein X represents a methyl group or a hydrogen atom, with the proviso that when X is a methyl group, A represents a nitrogen atom, Y represents a methyl group and B represents a nitrogen atom; and when X is a hydrogen atom , A represents C--COOC.sub.2 H.sub.5, Y represents a hydrogen atom and B represents C--CH.sub.3.In one embodiment, the non-linear optical material is represented by the following formula (I): ##STR2## In another embodiment, the non-linear optical material is represented by the following formula (II): ##STR3## Also disclosed is an orthorhomic molecular crystal having a space group of Pna2.sub.1 and constituted by molecules represented by the above formula (I).

摘要翻译： 公开了由下式表示的非线性光学材料：其中X表示甲基或氢原子，条件是当X为甲基时，A表示氮原子，Y表示甲基 B表示氮原子; 当X为氢原子时，A表示C-COOC2H5，Y表示氢原子，B表示C-CH3。 在一个实施例中，非线性光学材料由下式（I）表示：在另一个实施例中，非线性光学材料由下式（II）表示：还公开了 由具有上述式（I）表示的分子构成的空穴群Pna21的正交分子晶体。

公开(公告)号：US5130844A

公开(公告)日：1992-07-14

申请号：US596446

申请日：1990-10-12

申请人： Yoji Okazaki

发明人： Yoji Okazaki

IPC分类号： G02B6/42 ,  G02F1/35 ,  G02F1/355 ,  G02F1/361 ,  G02F1/37 ,  G02F1/39 ,  H01S3/108 ,  H01S5/00

CPC分类号： H01S3/108

摘要： An optical wavelength converter system includes a semiconductor laser for emitting a laser beam, the semiconductor laser having an external resonator such as a reflective grating, and an optical wavelength converter device disposed inwardly of the resonator and comprising a bulk single-crystal of organic nonlinear optical material. The bulk single-crystal is oriented to achieve angular phase matching between a laser beam emitted from the semiconductor laser and applied to the bulk single-crystal and a wavelength-converted wave.

摘要翻译： 光波长转换器系统包括用于发射激光束的半导体激光器，具有诸如反射光栅的外部谐振器的半导体激光器和设置在谐振器内部的光学波长转换器装置，并且包括有机非线性光学的大块单晶 材料。 大块单晶取向为实现从半导体激光器发射并施加到体单晶和波长转换波的激光束之间的角相位匹配。

公开(公告)号：US4943173A

公开(公告)日：1990-07-24

申请号：US401513

申请日：1989-08-31

申请人： Yoji Okazaki ,  Yukami Nitta ,  Shigeyoshi Harada

发明人： Yoji Okazaki ,  Yukami Nitta ,  Shigeyoshi Harada

IPC分类号： B41J29/10

CPC分类号： B41J29/10

摘要： A printer has a feeding path for guiding a printing paper from and toward an opening of the printer. A cross-sectional shape of the feeding path is minimized to be sufficient to pass the printing paper through the feeding path. At least one resonator is arranged in the feeding path. The resonator has a case defining a resonant chamber and holes formed on the case along with the feeding path. The resonant chamber communicates with the feeding path through the holes. Noises such as impact sound generated by a printing head of the printer are silenced by the resonator at frequencies around a resonance fequency of the resonator, and further silenced by the area reduced portion of the feeding path.

摘要翻译： 打印机具有用于从打印机的开口引导打印纸的进给路径。 馈送路径的横截面形状被最小化以足以使打印纸通过馈送路径。 至少一个谐振器布置在馈送路径中。 谐振器具有限定谐振室的壳体和与馈送路径一起形成在壳体上的孔。 谐振室通过孔与进给路径连通。 由谐振器在谐振器的谐振频率周围的频率使由打印机的打印头产生的冲击声的噪声静音，并进一步被馈送路径的区域缩小部分静音。