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公开(公告)号：US5221310A
公开(公告)日：1993-06-22
申请号：US796648
申请日：1991-11-22
CPC分类号： G02F1/3558 , G02F1/377
摘要： A wavelength conversion device exhibiting an excellent wavelength conversion efficiency is provided by forming it in such a manner that an LiTaO.sub.3 substrate is subjected to a proton exchange treatment to form a proton-exchange layer before the proton-exchange layer is subjected to heat treatment to form a domain-inverted structure. Heat treatment is performed at a high temperature rising speed to prevent the thermal diffusion of the proton-exchange layer so that the expansion of the domain-inverted structure to be formed in the proton-exchange layer is restrained. As a result, a higher harmonic wave wavelength conversion device can be provided.
摘要翻译： 通过使LiTaO 3基板进行质子交换处理以形成质子交换层，在质子交换层进行热处理以形成之前，形成具有优异的波长转换效率的波长转换元件 域反转结构。 以高温上升速度进行热处理，以防止质子交换层的热扩散，从而抑制在质子交换层中形成的畴反转结构的膨胀。 结果，可以提供高次谐波波长转换装置。
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公开(公告)号：US5323262A
公开(公告)日：1994-06-21
申请号：US11136
申请日：1993-01-29
CPC分类号： G02F1/3558 , G02F1/377
摘要： A wavelength conversion device exhibiting an excellent wavelength conversion efficiency is provided by forming it in such a manner that an LiTaO.sub.3 substrate is subjected to a proton exchange treatment to form a proton-exchange layer before the proton-exchange layer is subjected to heat treatment to form a domain-inverted structure. Heat treatment is performed at a high temperature rising speed to prevent the thermal diffusion of the proton-exchange layer so that the expansion of the domain-inverted structure to be formed in the proton-exchange layer is restrained. As a result, a higher harmonic wave wavelength conversion device can be provided.
摘要翻译： 通过使LiTaO 3基板进行质子交换处理以形成质子交换层，在质子交换层进行热处理以形成之前，形成具有优异的波长转换效率的波长转换元件 域反转结构。 以高温上升速度进行热处理，以防止质子交换层的热扩散，从而抑制在质子交换层中形成的畴反转结构的膨胀。 结果，可以提供高次谐波波长转换装置。
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3.发明授权
公开(公告)号：US5142596A
公开(公告)日：1992-08-25
申请号：US730442
申请日：1991-07-16
CPC分类号： G02F1/377 , G02B6/1228 , G02B6/305 , G02B6/4206 , G02B2006/1204 , G02B2006/12183 , G02B2006/12195 , G02F1/3525 , G02F2001/374
摘要： A tapered light wave guide reduced in propagation loss, improved in coupling efficiency and free from the problem of optical damage. An input section, a widthwise tapered coupling section having a depth d2, and a wave guide having a depth d1 are formed on an LiNbO.sub.3 substrate. A depthwise tapered section in which the depth is changed from d2 to d1 is provided to connect the widthwise tapered coupling section having constant depth d2 and the wave guide, whereby a reduction in light propagation efficiency due to optical damage is prevented.
摘要翻译： 锥形光波导减少了传播损耗，提高了耦合效率，并且没有光学损伤的问题。 在LiNbO 3衬底上形成输入部分，具有深度d2的宽度方向的锥形耦合部分和具有深度d1的波导管。 设置深度从d2变为d1的深度渐缩部分，以连接具有恒定深度d2的宽度方向的锥形联接部分和波导，从而防止由光学损伤引起的光传播效率的降低。
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公开(公告)号：US5253259A
公开(公告)日：1993-10-12
申请号：US825124
申请日：1992-01-24
CPC分类号： G02F1/3775 , G02F2001/3546
摘要： A frequency doubler of the invention employs a nonlinear optical effect of stabilizing the harmonic output from the frequency doubler. The frequency doubler has an LiNbO.sub.3 substrate, domain inverted regions and a waveguide, which are formed on the substrate, and a thin-film heater formed on the waveguide by depositing Ni-Cr. The temperature of the frequency doubler is controlled by applying a current to the thin-film heater so as to heat the frequency doubler. Even if the wavelength of a semiconductor laser is changed due to change in the environmental temperature, the frequency doubler can stably be operated by changing the temperature of the frequency doubler.
摘要翻译： 本发明的倍频器采用稳定来自倍频器的谐波输出的非线性光学效应。 倍频器具有形成在衬底上的LiNbO 3衬底，畴反转区域和波导，以及通过沉积Ni-Cr形成在波导上的薄膜加热器。 通过向薄膜加热器施加电流以加热倍频器来控制倍频器的温度。 即使半导体激光器的波长由于环境温度的变化而变化，倍频器也可以通过改变倍频器的温度来稳定地工作。
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公开(公告)号：US08767783B2
公开(公告)日：2014-07-01
申请号：US12596577
申请日：2009-02-18
申请人： Koichi Kusukame , Tetsuro Mizushima , Kazuhisa Yamamoto , Hiroyuki Furuya , Shinichi Kadowaki , Kiminori Mizuuchi
发明人： Koichi Kusukame , Tetsuro Mizushima , Kazuhisa Yamamoto , Hiroyuki Furuya , Shinichi Kadowaki , Kiminori Mizuuchi
IPC分类号： H01S3/10
CPC分类号： G03B21/2033 , G02B27/48 , G03B21/2053 , G03B21/208 , G03B33/06
摘要： A light source device is provided with a coherent light source for emitting the coherent light, and a pattern changer for changing an interference pattern of the coherent light on a surface of the illumination object. The pattern changer includes a photorefractive crystal which is arranged between the coherent light source and the illumination object and on an optical path of the coherent light and exhibits a photorefractive effect, and a changer for changing at least one of a light intensity distribution, a polarization direction, a wavelength and an intensity of coherent light incident on the photorefractive crystal. The illumination object is illuminated with the coherent light.
摘要翻译： 光源装置设置有用于发射相干光的相干光源，以及用于改变照明对象表面上的相干光的干涉图案的图案改变器。 图案转换器包括光折射晶体，其布置在相干光源和照明对象之间以及相干光的光路上并呈现光折射效应;以及变换器，用于改变光强度分布，偏振 方向，入射到光折射晶体上的相干光的波长和强度。 照明物体用相干光照亮。
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6.发明授权公开(公告)号：US08294979B2
公开(公告)日：2012-10-23
申请号：US12743646
申请日：2008-11-19
CPC分类号： G03B21/14 , G02F1/353 , G02F2001/3542 , G03B21/2033 , G03B21/2066 , G03B21/2073
摘要： A wavelength conversion device includes a laser light source that emits a fundamental wave; a wavelength conversion element that converts the fundamental wave into a second harmonic wave; and an optical system including a wavelength selective mirror that reflects the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave, while transmitting therethrough the second harmonic wave generated by wavelength conversion, wherein the optical system makes the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave enter the wavelength conversion element again to be subjected to wavelength conversion once or more than once, while being focused by the wavelength selective mirror, and the conversion efficiency in at least one of the second stage and stages subsequent to the second stage is higher than the conversion efficiency in the first stage, where the conversion efficiency in each stage is defined as: (a second harmonic wave generated in one stage)/(a square of the fundamental wave entered in the one stage).
摘要翻译： 波长转换装置包括发射基波的激光光源; 将基波转换为二次谐波的波长转换元件; 以及包括波长选择镜的光学系统，其反射通过波长转换元件传播的基波而不转换成二次谐波，同时透过其中由波长转换产生的二次谐波，其中光学系统使得基波传播 通过波长转换元件而不被转换成二次谐波，再次被波长转换元件进行一次或多于一次的波长转换，同时被波长选择镜聚焦，并且至少一个 第二级和第二级之后的级别高于第一级的转换效率，其中每级的转换效率被定义为：（一级产生的二次谐波）/（输入的基波的平方） 在一个阶段）。
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公开(公告)号：US08152314B2
公开(公告)日：2012-04-10
申请号：US11916041
申请日：2006-05-22
申请人： Toshifumi Yokoyama , Ken'ichi Kasazumi , Shin-ichi Kadowaki , Kiminori Mizuuchi , Hiroyuki Furuya , Kazuhisa Yamamoto
发明人： Toshifumi Yokoyama , Ken'ichi Kasazumi , Shin-ichi Kadowaki , Kiminori Mizuuchi , Hiroyuki Furuya , Kazuhisa Yamamoto
IPC分类号： G03B21/00
CPC分类号： G03B21/005
摘要： A display device (100) of the present invention has a first switch (3) and a second switch (4) on an upper surface of its casing, and includes a control circuit (18) for controlling the first switch (3) and the second switch (4) and a light source (19) inside the casing. The control circuit (18) performs control so that the light source (19) is turned on when the second switch (4) is pressed after a predetermined period of time has passed from when the first switch (3) was pressed. Thereby, the display device (100) of the present invention prevents entering of a person into a projection area before projection of video, and controls inadvertent start-up.
摘要翻译： 本发明的显示装置（100）在其壳体的上表面具有第一开关（3）和第二开关（4），并且包括用于控制第一开关（3）的控制电路（18）和 第二开关（4）和光源（19）。 控制电路（18）进行控制，使得当从第一开关（3）被按压经过预定时间段之后按下第二开关（4）时，光源（19）被接通。 因此，本发明的显示装置（100）防止在投影视频之前将人进入投影区域，并且控制无意的启动。
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公开(公告)号：US08038304B2
公开(公告)日：2011-10-18
申请号：US12305493
申请日：2007-06-19
CPC分类号： G03B21/14 , G03B35/20 , G03B37/04 , H04N9/3173 , H04N9/3182 , H04N9/3185 , H04N9/3194
摘要： A projector system is provided with at least one projector mobile in a specified space and adapted to project a video to a projection area included in the specified space in accordance with inputted video information, a plurality of position sensors each including a position detecting section for detecting a positional relationship of the projector with the projection area and arranged in a specified positional relationship with the specified space, and a controller for controlling a video to be projected from the projector to the projection area based on detection results by the position detecting sections of the plurality of position sensors.
摘要翻译： 投影仪系统具有至少一个在特定空间内移动的投影仪，并根据输入的视频信息将视频投影到指定空间中包括的投影区域;多个位置传感器，每个位置传感器包括检测位置检测部分 投影仪与投影区域的位置关系并且以与指定空间的指定位置关系布置的控制器，以及控制器，用于基于由投影仪的位置检测部分的检测结果控制从投影仪投影到投影区域的视频 多个位置传感器。
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9.发明授权Wavelength conversion element, laser light source, two-dimensional image display and laser processing system 有权波长转换元件，激光光源，二维图像显示和激光加工系统公开(公告)号：US08018646B2
公开(公告)日：2011-09-13
申请号：US11997099
申请日：2006-07-26
IPC分类号： G02F1/35
CPC分类号： G02F1/3558 , C30B15/00 , C30B29/30 , G02F1/3551 , G02F1/37 , G02F2202/20 , G02F2203/21
摘要： A wavelength conversion element is provided with a substrate including a nonlinear optical single crystal having a periodically poled structure, wherein a visible light transmittance of the substrate is 85% or higher when ultraviolet light is irradiated to the substrate. Further, a laser light having an average output of 1 W or more is outputted by shortening a wavelength of inputted laser light having a wavelength of 640 nm to 2000 nm. By improving visible light transmission characteristics when the ultraviolet light is irradiated in this way, a breakdown of crystal can be prevented and a stabilization of output characteristics at high output can be realized. As a result, an absorption of green light induced by ultraviolet light can also be suppressed and a saturation of output and the breakdown of crystal can be avoided.
摘要翻译： 波长转换元件设置有包括具有周期性极化结构的非线性光学单晶的衬底，其中当将紫外光照射到衬底时，衬底的可见光透射率为85％以上。 此外，通过缩短波长为640nm至2000nm的输入激光的波长，输出平均输出为1W以上的激光。 通过以这种方式照射紫外线时的可见光透射特性的改善，可以防止晶体的破坏，并且能够实现高输出下的输出特性的稳定化。 结果，也可以抑制紫外线诱发的绿光的吸收，可以避免输出的饱和和晶体的击穿。
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公开(公告)号：US20110012986A1
公开(公告)日：2011-01-20
申请号：US12920226
申请日：2009-03-23
IPC分类号： B41J15/14
CPC分类号： A23B4/002 , A23L3/00 , A23L13/00 , A23L13/03 , A23L15/00 , A23L17/00 , A23L17/75 , A23L19/05
摘要： Provided is a printing apparatus for printing information on a printing area of an object to be printed by irradiating the object to be printed with a first laser beam. The printing apparatus includes a light source for outputting the first laser beam, a light collecting optical system for collecting the first laser beam to the printing area of the object to be printed, and a scanning unit for performing scanning with the first laser beam. The object to be printed contains moisture at least in the printing area, and a wavelength of the first laser beam is 350 nm or more and 550 nm or less.
摘要翻译： 提供一种打印装置，用于通过用第一激光束照射要打印的对象来在要打印的对象的打印区域上打印信息。 打印装置包括用于输出第一激光束的光源，用于将第一激光束收集到待打印对象的打印区域的光收集光学系统和用于执行第一激光束的扫描的扫描单元。 要打印的对象至少在打印区域中含有水分，并且第一激光束的波长为350nm以上且550nm以下。
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