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公开(公告)号：US07583714B2
公开(公告)日：2009-09-01
申请号：US11679349
申请日：2007-02-27
IPC分类号： H01S5/00
CPC分类号： H01S5/18308 , B82Y20/00 , H01S5/06226 , H01S5/18358 , H01S5/18369 , H01S5/305 , H01S5/3054 , H01S5/3095 , H01S5/34306
摘要： The relationship between the reflectivity characteristic of a DBR layer(s), in which an InP layer and an InGaAlAs layer are laminated alternatively, and the optical absorption characteristic of the InGaAlAs layer, is a trade-off in a vertical cavity surface emitting laser on an InP substrate. The present invention applies a semiconductor DBR layer(s), in which an InP layer and an InGaAlAs-MQW (multi-quantum-wells) layer are laminated alternatively, in order to dissolve the above trade-off. The InGaAlAs-MQW layer is composed of InGaAlAs-wells and barriers. The InP layer is doped uniformly and the InGaAlAs-MQW layer has a structure in which at least a part thereof is doped.
摘要翻译： 其中InP层和InGaAlAs层交替层压的DBR层的反射率特性与InGaAlAs层的光吸收特性之间的关系是垂直腔表面发射激光器的折衷 InP衬底。 本发明应用半导体DBR层，其中InP层和InGaAlAs-MQW（多量子阱）层被交替层叠，以便解决上述折衷。 InGaAlAs-MQW层由InGaAlAs阱和阻挡层组成。 InP层被均匀地掺杂，并且InGaAlAs-MQW层具有其至少一部分被掺杂的结构。
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公开(公告)号：US06989550B2
公开(公告)日：2006-01-24
申请号：US10606834
申请日：2003-06-27
IPC分类号： H01L27/15
CPC分类号： B82Y20/00 , H01S5/12 , H01S5/1231 , H01S5/2009 , H01S5/3409 , H01S5/34313
摘要： The prior art distributed feedback laser having an InGaAlAs active layer involves a problem that its laser characteristics are deteriorated at high temperature due to the high device resistance. According to the present invention, a ridge type laser is fabricated by: forming an InGaAlAs-MQW layer 104 on a n-type InP substrate 101; growing a p-type InGaAlAs-GRIN-SCH layer 105, a p-type InAlAs electron stopping layer 106 and a p-type grating layer 107 in this order on the InGaAlAs-MQW layer 104; forming a grating; and regrowing a p-type InP cladding layer 108 and a p-type InGaAs contact layer in this order. The concave depth of the grating is smaller than the thickness of the p-type grating layer 107.
摘要翻译： 具有InGaAlAs有源层的现有技术的分布式反馈激光器涉及由于器件电阻高而使其激光特性在高温下劣化的问题。 根据本发明，通过在n型InP衬底101上形成InGaAlAs-MQW层104来制造脊型激光器; 在InGaAlAs-MQW层104上依次生长p型InGaAlAs-GRIN-SCH层105，p型InAlAs电子阻挡层106和p型光栅层107; 形成光栅; 并依次重新生长p型InP包覆层108和p型InGaAs接触层。 光栅的凹深小于p型光栅层107的厚度。
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公开(公告)号：US08124432B2
公开(公告)日：2012-02-28
申请号：US12630008
申请日：2009-12-03
IPC分类号： H01L21/205 , H01L31/18 , H01S5/22 , H01S5/343
CPC分类号： H01S5/34333 , B82Y20/00 , H01L33/0075 , H01S5/2009 , H01S5/3213 , H01S5/3215 , H01S5/3407
摘要： In an InGaN-based nitride semiconductor optical device having a long wavelength (440 nm or more) equal to or more than that of blue, the increase of a wavelength is realized while suppressing In (Indium) segregation and deterioration of crystallinity. In the manufacture of an InGaN-based nitride semiconductor optical device having an InGaN-based quantum well active layer including an InGaN well layer and an InGaN barrier layer, a step of growing the InGaN barrier layer includes: a first step of adding hydrogen at 1% or more to a gas atmosphere composed of nitrogen and ammonia and growing a GaN layer in the gas atmosphere; and a second step of growing the InGaN barrier layer in a gas atmosphere composed of nitrogen and ammonia.
摘要翻译： 在具有等于或大于蓝色的长波长（440nm或更大）的InGaN基氮化物半导体光学器件中，在抑制In（铟）偏析和结晶度劣化的同时实现波长的增加。 在制造具有包括InGaN阱层和InGaN阻挡层的InGaN基量子阱有源层的InGaN基氮化物半导体光学器件中，生长InGaN势垒层的步骤包括：第一步骤，在1 ％以上，由氮和氨组成的气体气氛，并在气体气氛中生长GaN层; 以及在由氮和氨组成的气体气氛中生长InGaN势垒层的第二步骤。
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公开(公告)号：US20070241344A1
公开(公告)日：2007-10-18
申请号：US11733229
申请日：2007-04-10
IPC分类号： H01L33/00
CPC分类号： B82Y20/00 , H01L33/06 , H01S5/0014 , H01S5/18311 , H01S5/2213 , H01S5/2231 , H01S5/34306 , H01S5/34353
摘要： For a semiconductor light emitting device using GaInNAs as an active layer, since GaInNAs includes N, the critical thickness is reduced and it is difficult to lengthen the wavelength of a laser beam. A semiconductor light emitting device is prepared, which has an active layer comprising a quantum well layer formed by successively stacking a GaInNAs layer and a GaInAs layer and GaAs barrier layers stacked on both sides of the quantum well layer. The quantum level of the conduction band is present above the conduction band edge of the GaInAs layer.
摘要翻译： 对于使用GaInNA作为有源层的半导体发光器件，由于GaInNA包括N，临界厚度减小，并且难以延长激光束的波长。 制备半导体发光器件，其具有包括通过连续层叠GaInNA层和GaInAs层而形成的量子阱层的活性层和层叠在量子阱层两侧的GaAs势垒层。 导带的量子水平存在于GaInAs层的导带边缘之上。
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公开(公告)号：US06990133B2
公开(公告)日：2006-01-24
申请号：US10772294
申请日：2004-02-06
申请人： Takeshi Kikawa , Kouji Nakahara , Etsuko Nomoto
发明人： Takeshi Kikawa , Kouji Nakahara , Etsuko Nomoto
IPC分类号： H01S5/00
CPC分类号： H01S5/0282 , H01L2224/45144 , H01L2224/48091 , H01S5/0014 , H01S5/02216 , H01S5/02284 , H01S5/0683 , H01S5/1039 , H01S5/12 , H01S5/2231 , H01S5/227 , H01L2924/00014 , H01L2924/00
摘要： Laser diodes containing aluminum at high concentration in an active layer have been usually suffered from remarkable facet deterioration along with laser driving operation and it has been difficult for the laser diodes to attain high reliability. An aluminum oxide film lacking in oxygen is formed adjacent to the semiconductor on an optical resonator facet, by which facet deterioration can be minimized and, accordingly, the laser diode can be operated with no facet deterioration at high temperature for long time and a laser diode of high reliability can be manufactured at a reduced cost.
摘要翻译： 在激活层中含有高浓度的铝的激光二极管通常伴随着激光驱动操作而引起显着的面恶化，并且激光二极管难以获得高可靠性。 在光谐振器面上与半导体相邻形成缺氧的氧化铝膜，由此可以使面畸变最小化，并且因此激光二极管可以长时间在高温下没有小面恶化的情况下工作，而激光二极管 可以以较低的成本制造高可靠性。
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公开(公告)号：US08569727B2
公开(公告)日：2013-10-29
申请号：US12999392
申请日：2009-06-11
IPC分类号： G01V8/00
CPC分类号： H04N9/317 , G02B26/10 , H04N9/3129
摘要： The object of the invention included in the present application is to automatically prevent the deterioration of the image even when the image quality of the projected image is deteriorated due to the replacement of the light source or the like. The following light beam scanning image projection apparatus is one means for achieving the object. In the light beam scanning image projection apparatus including a plurality of light sources which emit the light beams of respectively different wavelengths, a driving section which modulates the intensity of each light beam in accordance with the image signal, the light axis alignment means which aligns the light axes of each light beam, and scanning means which scans the light beams, the light axis alignment means includes: a plurality of optical elements; and an adjusting section which adjusts at least one of a position and a gradient of at least one of the optical elements, and the light beam scanning image projection apparatus further includes: detecting means which detects a shift between a spot center of each light beam and a center reference point; and position correction means which controls the adjusting section based on a detection result in the detecting means to adjust at least one of the position and the gradient of at least one of the optical elements of the light axis alignment means, thereby aligning the light axes of each light beam.
摘要翻译： 本申请中包括的本发明的目的是即使当由于更换光源等而导致投影图像的图像质量劣化时，也能够自动防止图像的劣化。 以下光束扫描图像投影装置是实现该目的的一种手段。 在包括发射分别不同波长的光束的多个光源的光束扫描图像投影设备中，根据图像信号调制每个光束的强度的驱动部分，将对准该光束的光轴对准装置 每个光束的光轴和扫描光束的扫描装置，光轴对准装置包括：多个光学元件; 以及调整部，其调整至少一个所述光学元件的位置和倾斜度中的至少一个，并且所述光束扫描图像投影装置还包括：检测装置，其检测每个光束的光点中心与 中心参考点 以及位置校正装置，其基于检测装置中的检测结果来控制调节部分，以调整光轴对准装置的至少一个光学元件的位置和梯度中的至少一个，从而使光轴对准装置的光轴 每个光束。
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公开(公告)号：US20050127383A1
公开(公告)日：2005-06-16
申请号：US10772294
申请日：2004-02-06
申请人： Takeshi Kikawa , Kouji Nakahara , Etsuko Nomoto
发明人： Takeshi Kikawa , Kouji Nakahara , Etsuko Nomoto
IPC分类号： B82Y20/00 , H01L21/00 , H01S5/028 , H01S5/0683 , H01S5/10 , H01S5/12 , H01S5/223 , H01S5/227 , H01L33/00
CPC分类号： H01S5/0282 , H01L2224/45144 , H01L2224/48091 , H01S5/0014 , H01S5/02216 , H01S5/02284 , H01S5/0683 , H01S5/1039 , H01S5/12 , H01S5/2231 , H01S5/227 , H01L2924/00014 , H01L2924/00
摘要： Laser diodes containing aluminum at high concentration in an active layer have been usually suffered from remarkable facet deterioration along with laser driving operation and it has been difficult for the laser diodes to attain high reliability. An aluminum oxide film lacking in oxygen is formed adjacent to the semiconductor on an optical resonator facet, by which facet deterioration can be minimized and, accordingly, the laser diode can be operated with no facet deterioration at high temperature for long time and a laser diode of high reliability can be manufactured at a reduced cost.
摘要翻译： 在激活层中含有高浓度的铝的激光二极管通常伴随着激光驱动操作而引起显着的面恶化，并且激光二极管难以获得高可靠性。 在光谐振器面上与半导体相邻形成缺氧的氧化铝膜，由此可以使面畸变最小化，因此激光二极管长时间可以在高温下没有小面恶化的情况下工作，而激光二极管 可以以较低的成本制造高可靠性。
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公开(公告)号：US06396044B1
公开(公告)日：2002-05-28
申请号：US09468523
申请日：1999-12-21
IPC分类号： H01J1014
CPC分类号： H04N1/03 , H04N1/0303 , H04N1/0305
摘要： To achieve a reduction in the cost of components and a reduction in assembly steps in a production line, the number of parts is reduced in an image reading apparatus. An image reading apparatus includes a casing which is provided with a unit to which light reflected from an original document surface is incident, a lens for converging the reflected light, an image sensor to which the reflected light which has been converged by the lens is incident, and a plurality of reflectors disposed between the light incident unit and the lens for defining an optical path for the reflected light. The reflectors are formed on the inner surface of the casing in a plurality of positions by vacuum depositing aluminum on the inner surface.
摘要翻译： 为了实现部件成本的降低和生产线中的组装步骤的减少，在图像读取装置中部件的数量减少。 图像读取装置包括壳体，该壳体设置有从原稿表面入射的光的单元，用于会聚反射光的透镜，被透镜会聚的反射光入射的图像传感器 以及设置在光入射单元和透镜之间的多个反射器，用于限定反射光的光路。 反射器通过在内表面上真空沉积铝而在多个位置形成在壳体的内表面上。
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公开(公告)号：US06943922B2
公开(公告)日：2005-09-13
申请号：US09840910
申请日：2001-04-25
CPC分类号： H04N1/1911
摘要： An image reading apparatus is provided which is capable of reading an original document at a higher speed. M pieces of lines on the surface of the original document can be simultaneously read by M pieces of line-like strings of light sensing devices making up a CCD (Charge-Coupled Device) having an interval represented by N pieces of lines to be read. When simultaneous reading is completed, the original document is moved to a line existing apart by L pieces of lines from the lines that have been read. While the original document is moving, image signals of lines that have been read are A/D (analog to digital) converted and then stored to memory regions. Simultaneous reading operation and subsequent storing are sequentially performed on lines on which the line-like strings of light sensing devices are placed.
摘要翻译： 提供了能够以更高速度读取原稿的图像读取装置。 可以通过M条由具有由N条待读取的间隔表示的间隔的由CCD（电荷耦合器件）构成的光感测装置的M条线同时读取原稿的表面上的M条线。 当同时读取完成时，将原始文档移动到与已读取的行分开的L条线上存在的线上。 在原始文档移动的同时，已经读取的行的图像信号被A / D（模数转换）转换并存储到存储器区域。 在其上放置有线状的感光元件串的线上依次执行同时读取操作和随后的存储。
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公开(公告)号：US06563608B1
公开(公告)日：2003-05-13
申请号：US09323038
申请日：1999-06-01
IPC分类号： H04N104
CPC分类号： H04N1/0282 , H04N1/02815 , H04N1/02845 , H04N1/0285
摘要： A document reading apparatus includes a light-source assembly which can provide the reduced number of parts and the effective use of light. The light-source assembly includes a plate and a holder. The plate has a reflective surface at one side thereof and a fixing surface at the other side thereof, wherein the plate is fixed at the fixing surface such that the reflective surface is placed in a predetermined direction. The holder is provided on the reflective surface of the one side of the plate. The holder holds and fixes the light source substantially parallel to the reflective surface.
摘要翻译： 文件读取装置包括能够提供减少数量的部件和有效使用光的光源组件。 光源组件包括板和支架。 该板在其一侧具有反射表面，在其另一侧具有固定表面，其中该板被固定在固定表面上使得反射表面被放置在预定的方向上。 保持器设置在板的一侧的反射表面上。 保持器保持并固定基本平行于反射表面的光源。
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