公开(公告)号：US08144742B2

公开(公告)日：2012-03-27

申请号：US12500757

申请日：2009-07-10

Applicant: Hitoshi Shimizu ,  Takeo Kageyama

Inventor： Hitoshi Shimizu ,  Takeo Kageyama

IPC: H01S5/20 ,  H01S5/00

CPC classification number: H01S5/18311 ,  B82Y20/00 ,  H01S5/0422 ,  H01S5/0425 ,  H01S5/18341 ,  H01S5/18369 ,  H01S5/3095 ,  H01S5/3201 ,  H01S5/3406 ,  H01S5/3412 ,  H01S5/34306 ,  H01S2301/173

Abstract: To provide a surface emitting laser device including a substrate; an optical resonator arranged on the substrate, the optical resonator including a lower multilayer reflector and an upper multilayer reflector; a strained active layer arranged in the resonator, the strained active layer having a multiple quantum well structure formed with a quantum well layer and a barrier layer; and a current confinement layer arranged on an upper side of the strained active layer, the current confinement layer including a selectively oxidized portion, where the current confinement layer is arranged at a position where a strain in the selectively oxidized portion influences the strained active layer.

Abstract translation: 提供一种包括基板的表面发射激光器件; 布置在所述基板上的光学谐振器，所述光学谐振器包括下部多层反射器和上部多层反射器; 布置在所述谐振器中的应变有源层，所述应变有源层具有由量子阱层和阻挡层形成的多量子阱结构; 以及电流限制层，其布置在所述应变有源层的上侧，所述电流限制层包括选择性氧化部分，其中所述电流限制层布置在所述选择性氧化部分中的应变影响所述应变有源层的位置。

公开(公告)号：US20120020383A1

公开(公告)日：2012-01-26

申请号：US13187838

申请日：2011-07-21

Applicant: Hitoshi SHIMIZU ,  Yasumasa KAWAKITA

Inventor： Hitoshi SHIMIZU ,  Yasumasa KAWAKITA

IPC: H01S5/42

CPC classification number: H01S5/18311 ,  G02B6/4214 ,  H01S5/02292 ,  H01S5/18341 ,  H01S5/18347 ,  H01S5/18358 ,  H01S5/18369 ,  H01S5/3054 ,  H01S5/3215

Abstract: A surface emitting laser includes lower and upper multilayer mirrors, first-conductivity-type and second-conductivity-type contact layers formed between the lower and the upper multilayer mirrors, an active layer formed between the first-conductivity-type and the second-conductivity-type contact layers, a current confinement layer formed between the second-conductivity-type contact layer and the active layer, and first and second composition gradient layers formed facing each other across the current confinement layer. The first composition gradient layer and the second composition gradient layer are formed such that bandgap energy of each of the layers is monotonically decreased from the current confinement layer to an adjacent layer and approach bandgap energy of the adjacent layer in a growth direction.

Abstract translation: 表面发射激光器包括下层和上层多层反射镜，形成在下层和上层多层反射镜之间的第一导电型和第二导电型接触层，形成在第一导电型和第二导电型之间的有源层 型接触层，形成在第二导电型接触层和有源层之间的电流限制层以及横跨电流限制层彼此形成的第一和第二组成梯度层。 形成第一组成梯度层和第二组成梯度层，使得每个层的带隙能量从电流限制层单调减小到相邻层，并且在生长方向上接近相邻层的带隙能量。

公开(公告)号：US20120017842A1

公开(公告)日：2012-01-26

申请号：US13146921

申请日：2010-02-01

Applicant: Yukio Yamada ,  Hitoshi Shimizu ,  Takeshi Kimura

Inventor： Yukio Yamada ,  Hitoshi Shimizu ,  Takeshi Kimura

IPC: A01K1/03 ,  G01N21/01 ,  G01J3/44

CPC classification number: G01N21/01 ,  A01K1/0613 ,  A46D3/00 ,  A61B5/0071 ,  A61B5/0073 ,  A61B2503/40 ,  A61B2560/06 ,  G01N21/4795 ,  G01N21/6428 ,  G01N21/6456 ,  G01N21/65 ,  G01N2021/1787 ,  G01N2021/651

Abstract: A measurement object holder that holds a measurement object in an optical measurement instrument, wherein the optical measurement instrument takes, as the measurement object, a living body in which isotropic scattering of light occurs inside and receives light emitted from the measurement object is disclosed. The measurement object holder includes a block that is formed in a predetermined outer shape by a material having optical properties in which the isotropic scattering of light occurs inside; and a cavity portion that is formed inside the block, that has an inner shape following the outer shape of the measurement object and in which the measurement object is accommodated.

Abstract translation: 本发明公开了一种将测量对象保持在光学测量仪器中的测量对象保持器，其中所述光学测量仪器作为所述测量对象，将生物体作为测量对象的内部发生光的各向同性散射并接收从测量对象发射的光。 测量对象保持器包括通过具有光学特性的材料形成为预定的外部形状的块，其中发生光的各向同性散射; 以及形成在所述块内的空腔部，所述空腔部具有与所述测量对象的外部形状相邻并且容纳所述测量对象的内部形状。

公开(公告)号：US20120008659A1

公开(公告)日：2012-01-12

申请号：US13176921

申请日：2011-07-06

Applicant: Yasumasa KAWAKITA ,  Hitoshi SHIMIZU ,  Takeo KAGEYAMA

Inventor： Yasumasa KAWAKITA ,  Hitoshi SHIMIZU ,  Takeo KAGEYAMA

IPC: H01S5/323 ,  H01S5/18

CPC classification number: H01S5/18311 ,  H01S5/02208 ,  H01S5/02284 ,  H01S5/02288 ,  H01S5/0425 ,  H01S5/18322 ,  H01S5/18369 ,  H01S2304/04

Abstract: A surface emitting laser includes a cavity region formed on a group-III-V compound substrate, which includes an active layer and a current confinement layer that has an aluminum oxide compound and confines a current path through which a current is injected into the active layer, an upper DBR mirror and a lower DBR mirror formed on the substrate, sandwiching the cavity region, and a graded-composition layer disposed to contact the current confinement layer, which has an aluminum composition ratio decreasing monotonically as a distance from the current confinement layer increases. The graded-composition layer includes a first region that contacts the current confinement layer and an oxidation stop layer that contacts the first region and that has a change rate of the aluminum composition ratio larger than that of the first region. The graded-composition layer is oxidized from an interface with the current confinement layer to at least a portion of the oxidation stop layer.

Abstract translation: 表面发射激光器包括形成在III-V族化合物衬底上的空腔区域，该腔体区域包括有源层和具有氧化铝化合物的电流限制层，并限制电流通过该电流通路流入有源层 ，形成在基板上的上DBR镜和下DBR镜，夹着腔区，以及设置成接触电流限制层的渐变组成层，其具有与当前限制层距离单调减小的铝组成比 增加 渐变组成层包括接触电流限制层的第一区域和与第一区域接触的氧化停止层，并且其铝组成比的变化率大于第一区域的变化率。 梯度组合物层从与电流限制层的界面氧化成氧化停止层的至少一部分。

公开(公告)号：US20110199500A1

公开(公告)日：2011-08-18

申请号：US12975180

申请日：2010-12-21

Applicant: Hitoshi SHIMIZU ,  Koji Yoshida ,  Kazuhiko Katakura ,  Takayuki Iida

Inventor： Hitoshi SHIMIZU ,  Koji Yoshida ,  Kazuhiko Katakura ,  Takayuki Iida

IPC: H04N5/228

CPC classification number: H04N5/33 ,  A61B1/00009 ,  A61B1/00165 ,  A61B1/042 ,  A61B1/043 ,  A61B1/063 ,  A61B1/0638 ,  A61B5/0071 ,  A61B5/0084 ,  A61B5/02007 ,  A61B5/418 ,  G01N21/6456 ,  G06K9/2018 ,  G06T5/50 ,  G06T2207/10068 ,  G06T2207/20224 ,  G06T2207/30101 ,  H04N5/2258 ,  H04N5/32 ,  H04N5/332

Abstract: Obtaining a first image captured by directing light having a first wavelength to an observation area and receiving light emitted from the observation area, and a second image captured by directing light having a second wavelength shorter than the first wavelength to the observation area and receiving light emitted from the observation area, and obtaining a deep portion image of the observation area by subtracting the second image from the first image.

Abstract translation: 通过将具有第一波长的光引导到观察区域并接收从观察区域发射的光而获得的第一图像和通过将具有比第一波长短的第二波长的光引导到观察区域并接收发射的光而捕获的第二图像 并且从第一图像中减去第二图像，获得观察区域的深部图像。

公开(公告)号：US20110051088A1

公开(公告)日：2011-03-03

申请号：US12991080

申请日：2009-03-11

Applicant: Hitoshi Shimizu ,  Takefumi Hayashi

Inventor： Hitoshi Shimizu ,  Takefumi Hayashi

IPC: A61B3/12

CPC classification number: A61B3/102 ,  G01N21/4795

Abstract: A fundus oculi observing device 1 specifies a characteristic site of a fundus oculi Ef depicted in tomographic images of the fundus oculi Ef and, based on the position of the characteristic site within frames FH and FV of the tomographic images, changes a target position of a signal light LS so that the characteristic site is depicted in the center positions within the frames FH and FV and executes a main measurement, thereby forming a tomographic image and/or a three-dimensional image of the fundus oculi Ef.

Abstract translation: 眼底观察装置1指定眼底Ef的断层图像中描绘的眼底Ef的特征部位，并且基于断层图像的帧FH和FV内的特征部位的位置改变目标位置 信号光LS，使得特征部位被描绘在帧FH和FV内的中心位置，并执行主要测量，从而形成眼底Ef的断层图像和/或三维图像。

公开(公告)号：US07830521B2

公开(公告)日：2010-11-09

申请号：US11864711

申请日：2007-09-28

Applicant: Hiroaki Yamamoto ,  Toshihito Kimura ,  Hitoshi Shimizu ,  Masashi Hakamata

Inventor： Hiroaki Yamamoto ,  Toshihito Kimura ,  Hitoshi Shimizu ,  Masashi Hakamata

IPC: G01N21/00

CPC classification number: G01N21/553 ,  G01N2021/157

Abstract: Provided are a detection apparatus, a detection method and an optically transparent member, which can detect a decrease in a precision. A convolution is performed by a convolution portion 80 contained in an image processing portion 38, to acquire the distribution information indicating the light intensity distribution of a light beam, which is totally reflected at the interface and which is incident at a plurality of angles to an dielectric block 52 so as to be totally reflected at the interface of the dielectric block 52. A spatial frequency resolution is performed on the light intensity distribution indicated by the distribution information acquired, by a detection precision evaluating portion 86 contained in the image processing portion 38, to thereby derive the light intensity distribution of each spatial frequency of the light beam. The precision is detected by comparing the light intensity distribution derived, with a threshold value predetermined for each spatial frequency.

Abstract translation: 提供了能够检测精度降低的检测装置，检测方法和光学透明构件。 通过包含在图像处理部分38中的卷积部分80执行卷积，以获取指示在该界面处被全反射并以多个角度入射的光束的光强度分布的分布信息 介质块52，以便在介质块52的界面处被全反射。通过由图像处理部分38中包含的检测精度评估部分86对由所获取的分布信息指示的光强度分布执行空间频率分辨率 ，从而导出光束的每个空间频率的光强度分布。 通过将导出的光强度分布与针对每个空间频率预定的阈值进行比较来检测精度。

公开(公告)号：US07764452B2

公开(公告)日：2010-07-27

申请号：US11546408

申请日：2006-10-12

Applicant: Hitoshi Shimizu

Inventor： Hitoshi Shimizu

IPC: G02B7/00

CPC classification number: G02B7/025 ,  B29D11/0073

Abstract: A cemented lens is produced by cementing a first lens having a concave surface with a second lens having a convex surface. The second lens is placed on the concave surface of the first lens to align the concave surface with the convex surface. Adhesive is dropped in each predetermined place around the second lens by a predetermined quantity to abut against an outer circumferential end of the second lens. The position of the second lens is adjusted. The adhesive is irradiated with ultraviolet light. Thus, the outer circumferential end of the second lens is bonded with the concave surface of the first lens. There is no bonding layer between the cementing surfaces as in the related art. There is no fear that light passes through the bonding layer. It is therefore unnecessary to consider deterioration of optical performance caused by deformation of the adhesive exposed to intensive light.

Abstract translation: 胶合透镜通过将具有凹面的第一透镜与具有凸面的第二透镜粘合而制造。 将第二透镜放置在第一透镜的凹面上，以将凹面与凸面对准。 粘合剂在第二透镜周围的每个预定位置落下预定量以抵靠第二透镜的外周端。 调整第二透镜的位置。 用紫外线照射粘合剂。 因此，第二透镜的外周端与第一透镜的凹面接合。 如现有技术那样，在固井表面之间没有结合层。 不用担心光通过粘合层。 因此，不需要考虑暴露于强光下的粘合剂的变形引起的光学性能的劣化。

公开(公告)号：US20100086311A1

公开(公告)日：2010-04-08

申请号：US12634895

申请日：2009-12-10

Applicant: Hitoshi SHIMIZU ,  Setiagung Casimirus ,  Yasukazu Shiina ,  Takeshi Hama ,  Norihiro Iwai

Inventor： Hitoshi SHIMIZU ,  Setiagung Casimirus ,  Yasukazu Shiina ,  Takeshi Hama ,  Norihiro Iwai

IPC: H04B10/00

CPC classification number: B82Y20/00 ,  H01S5/02284 ,  H01S5/18305 ,  H01S5/18313 ,  H01S5/18347 ,  H01S5/18391 ,  H01S5/34313

Abstract: A surface emitting laser includes a lower semiconductor multilayer mirror formed of a plurality of pairs of a high-refractive-index area and a low-refractive-index area; an active layer vertically sandwiched by cladding layers; a current confinement layer of AlzGa1-zAs having an oxide area in a peripheral portion of the current confinement layer, where 0.95≦z≦1; and an upper semiconductor multilayer mirror formed of a plurality of pairs of a high-refractive-index area and a low-refractive-index area. The low-refractive-index area of at least one of the lower semiconductor multilayer mirror and the upper semiconductor multilayer mirror includes an Alz1Ga1-z1As layer with a thickness thinner than that of the current confinement layer, where z≦z1.

Abstract translation: 表面发射激光器包括由多对高折射率区域和低折射率区域形成的下半导体多层反射镜; 垂直夹层的有源层; 在电流限制层的周边部分中具有氧化物区域的AlzGa1-zAs的电流限制层，其中0.95＆lt; 1; z＆nlE; 1; 以及由多对高折射率区域和低折射率区域构成的上半导体多层反射镜。 下半导体多层反射镜和上半导体多层反射镜中的至少一个的低折射率区域包括厚度比电流限制层薄的Alz1Ga1-z1As层，其中z＆nlE; z1。

公开(公告)号：US07577176B2

公开(公告)日：2009-08-18

申请号：US12040348

申请日：2008-02-29

Applicant: Hitoshi Shimizu ,  Takeo Kageyama

Inventor： Hitoshi Shimizu ,  Takeo Kageyama

IPC: H01S5/20 ,  H01S5/00

CPC classification number: H01S5/18311 ,  B82Y20/00 ,  H01S5/0422 ,  H01S5/0425 ,  H01S5/18308 ,  H01S5/18341 ,  H01S5/18369 ,  H01S5/3095 ,  H01S5/3201 ,  H01S5/3406 ,  H01S5/3412 ,  H01S5/34306 ,  H01S2301/173

Abstract: An optical resonator including a lower multilayer reflector and an upper multilayer reflector is arranged on a substrate. A strained active layer having a multiple quantum well structure formed with a quantum well layer and a barrier layer is arranged in the resonator. A current confinement layer including a selectively oxidized portion is arranged on an upper side of the strained active layer. The current confinement layer is arranged at a position where a strain in the selectively oxidized portion influences the strained active layer.

Abstract translation: 包括下多层反射器和上多层反射器的光学谐振器被布置在基板上。 具有量子阱层和势垒层的多量子阱结构的应变有源层被布置在谐振器中。 包含选择性氧化部分的电流限制层布置在应变有源层的上侧。 电流限制层布置在选择性氧化部分的应变影响应变有源层的位置。