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公开(公告)号：US06829284B2
公开(公告)日：2004-12-07
申请号：US10302122
申请日：2002-11-22
Applicant: Yuichiro Ori
Inventor： Yuichiro Ori
IPC: H01S308
CPC classification number: G02B19/0085 , G02B3/06 , G02B13/08 , G02B13/18 , G02B19/0014 , G02B19/0052 , G02B27/09 , G02B27/0955 , G11B7/1378 , G11B7/1398 , H01S5/02288
Abstract: A light source device has a semiconductor laser for emitting an elliptical divergent beam having a light intensity distribution in an elliptical form; and a beam shaping element for converting an elliptical divergent beam from said semiconductor laser into an approximately circular divergent beam having a light intensity distribution in an approximately circular form; wherein the beam shaping element has a first surface formed of a cylindrical surface and a second surface formed of an anamorphic surface, in order from said semiconductor laser side, and satisfies the predetermined conditional expressions.
Abstract translation: 光源装置具有用于发射具有椭圆形状的光强度分布的椭圆发散光束的半导体激光器; 以及光束成形元件，用于将来自所述半导体激光器的椭圆发散光束转换成具有大致圆形形状的光强度分布的近似圆形发散光束; 其中所述光束成形元件具有由所述半导体激光器侧依次由圆柱形表面和由变形表面形成的第二表面的第一表面，并且满足所述预定条件表达式。
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2.发明授权
公开(公告)号：US5995286A
公开(公告)日：1999-11-30
申请号：US35436
申请日：1998-03-05
Applicant: Hiromu Mukai , Yuichiro Ori , Shigeto Ohmori
Inventor： Hiromu Mukai , Yuichiro Ori , Shigeto Ohmori
CPC classification number: G02B5/1847 , B29D11/00009 , G02B5/1866
Abstract: An optical system has a diffractive optical element. A diffractive optical surface of the optical element has a blaze-shaped diffraction grating. The grating heights are smaller in the peripheral region of the grating than in the central region of the grating around its optical axis. The optical element acts as a lenses a result of light rays being deflected by the light-diffracting action of the diffractive optical surface.
Abstract translation: 光学系统具有衍射光学元件。 光学元件的衍射光学表面具有火焰状衍射光栅。 光栅的周边区域的光栅高度比围绕其光轴的光栅的中心区域小。 光学元件作为透镜，由于衍射光学表面的光衍射作用使光线偏转。
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公开(公告)号：US5872658A
公开(公告)日：1999-02-16
申请号：US794561
申请日：1997-02-03
Applicant: Yuichiro Ori
Inventor： Yuichiro Ori
CPC classification number: G02B15/173 , G02B5/1814
Abstract: A zoom lens system includes, from the object to image side, a first lens unit of a positive refractive power having a first lens element with a power to both diffract and refract light. A second lens unit has a negative refractive power and may include a second lens element having both the power to diffract and refract light, and it least a third lens unit is included. A zooming operation is performed by varying the distances between the respective first, second, and third lens units.
Abstract translation: 变焦透镜系统包括从物体到像侧，具有正屈光力的第一透镜单元，其具有具有衍射和折射光的功能的第一透镜元件。 第二透镜单元具有负屈光力，并且可以包括具有衍射和折射光的功能的第二透镜元件，并且至少包括第三透镜单元。 通过改变相应的第一，第二和第三透镜单元之间的距离来执行变焦操作。
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公开(公告)号：US07586827B2
公开(公告)日：2009-09-08
申请号：US10972970
申请日：2004-10-25
Applicant: Takuji Hatano , Katsuya Yagi , Yuichi Atarashi , Yuichiro Ori
Inventor： Takuji Hatano , Katsuya Yagi , Yuichi Atarashi , Yuichiro Ori
IPC: G11B7/12
CPC classification number: G11B7/1395 , G11B7/1369 , G11B7/13925 , G11B7/1398 , G11B2007/0006 , G11B2007/13727
Abstract: An optical pickup apparatus has a semiconductor laser source which emits a laser beam in a wavelength band of 405 nm having an elliptic light intensity distribution; a beam shaping element which shapes the light intensity distribution of the laser beam; a polarizing beam splitter having a polarized light separation film in contact with the air and reflecting the laser beam shaped by the beam shaping element on the polarized light separation film; and an objective lens which focuses the laser beam reflected on the polarized light separation film onto an optical information recording medium.
Abstract translation: 光拾取装置具有发射具有椭圆光强度分布的405nm波长带的激光束的半导体激光源; 光束成形元件，其对激光束的光强度分布进行整形; 偏振分束器，具有与空气接触的偏振光分离膜，并将由光束成形元件成形的激光束反射在偏振光分离膜上; 以及将反射在偏振光分离膜上的激光束聚焦到光学信息记录介质上的物镜。
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公开(公告)号：US20080310284A1
公开(公告)日：2008-12-18
申请号：US12179751
申请日：2008-07-25
Applicant: Kyu TAKADA , Junji Hashimura , Yuichiro Ori , Toru Kimura
Inventor： Kyu TAKADA , Junji Hashimura , Yuichiro Ori , Toru Kimura
IPC: G11B7/00
CPC classification number: G11B7/1353 , G02B3/08 , G02B13/003 , G02B13/0045 , G02B13/0055 , G02B13/0065 , G11B7/1367 , G11B7/13922 , G11B7/13925 , G11B2007/0006
Abstract: An optical pickup apparatus includes a diffractive optical element, and an objective lens that focuses a light beam of a first wavelength λ1, a light beam of a second wavelength λ2 and a light beam of a third wavelength λ3 on a first recording medium, a second recording medium, and a third recording medium, respectively, the wavelengths λ1, λ2, and λ3 being different from each other. The diffractive optical element includes a first diffractive surface that neither diffracts the light beam of the first wavelength λ1 nor the light beam of the third wavelength λ3 but diffracts the light beam of the second wavelength λ2, and a second diffractive surface that neither diffracts the light beam of the first wavelength λ1 nor the light beam of the second wavelength λ2 but diffracts the light beam of the third wavelength λ3, and each of the first and second diffractive surfaces satisfies the following condition inequality: Λ/λ≧8 wherein Λ represents the minimum pitch in the case that the width which generates a phase difference of one wavelength when the closest wavefronts resulting from adjacent steps in each of the diffractive surfaces are linked with each other is defined as one pitch, and λ represents the wavelength of the diffracted light.
Abstract translation: 光拾取装置包括衍射光学元件和将第一波长λ1的光束，第二波长λ2的光束和第三波长λ3的光束的光束聚焦在第一记录介质上的物镜，第二 记录介质和第三记录介质，波长λ1，λ2和λ3彼此不同。 衍射光学元件包括：第一衍射面，其既不衍射第一波长λ1的光束也不衍射第三波长λ3的光束，但衍射第二波长λ2的光束;以及第二衍射面，其不衍射光 第一波长λ1的光束和第二波长λ2的光束，但是衍射第三波长λ3的光束，并且第一和第二衍射面中的每一个满足以下条件不等式：<βin-line-formula description = “In-line Formulas”end =“lead”？>λ/λ> = 8 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中Lambda表示该情况下的最小间距 当由每个衍射表面中的相邻步骤产生的最接近的波前相互连接时产生一个波长的相位差的宽度被定义为一个间距，并且λ表示 衍射光的波长。
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Patent Agency Ranking
公开(公告)号：US20050213469A1
公开(公告)日：2005-09-29
申请号：US10952150
申请日：2004-09-27
Applicant: Kazunari Tada , Junji Hashimura , Yuichiro Ori
Inventor： Kazunari Tada , Junji Hashimura , Yuichiro Ori
CPC classification number: G02B27/0966 , G02B19/0014 , G02B19/0052 , G11B7/1378 , G11B7/13922 , G11B7/1398
Abstract: In a beam shaping device for converting the laser light emitted from a semiconductor laser light source from an elliptic beam to a circular beam, the light-entrance-side and light-exit-side surfaces of the beam shaping device both have a curvature only in the minor-axis direction of the cross section of the elliptic beam. Of the light-entrance-side and light-exit-side surfaces, one is a circular-arc cylindrical surface and the other is a non-circular-arc cylindrical surface. The beam shaping device fulfills prescribed conditions with respect to the center thickness, surface shapes, and/or other features.
Abstract translation: 在用于将从半导体激光源发射的激光从椭圆光束转换成圆形光束的光束整形装置中，光束成形装置的光入射侧和光出射侧表面仅在 椭圆梁的横截面的短轴方向。 在光入射侧和光出射侧表面中，一个是圆弧形圆柱形表面，另一个是非圆弧形圆柱形表面。 光束成形装置相对于中心厚度，表面形状和/或其他特征实现规定的条件。
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公开(公告)号：US20050111337A1
公开(公告)日：2005-05-26
申请号：US10972970
申请日：2004-10-25
Applicant: Takuji Hatano , Katsuya Yagi , Yuichi Atarashi , Yuichiro Ori
Inventor： Takuji Hatano , Katsuya Yagi , Yuichi Atarashi , Yuichiro Ori
CPC classification number: G11B7/1395 , G11B7/1369 , G11B7/13925 , G11B7/1398 , G11B2007/0006 , G11B2007/13727
Abstract: An optical pickup apparatus has a semiconductor laser source which emits a laser beam in a wavelength band of 405 nm having an elliptic light intensity distribution; a beam shaping element which shapes the light intensity distribution of the laser beam; a polarizing beam splitter having a polarized light separation film in contact with the air and reflecting the laser beam shaped by the beam shaping element on the polarized light separation film; and an objective lens which focuses the laser beam reflected on the polarized light separation film onto an optical information recording medium.
Abstract translation: 光拾取装置具有发射具有椭圆光强度分布的405nm波长带的激光束的半导体激光源; 光束成形元件，其对激光束的光强度分布进行整形; 偏振分束器，具有与空气接触的偏振光分离膜，并将由光束成形元件成形的激光束反射在偏振光分离膜上; 以及将反射在偏振光分离膜上的激光束聚焦到光学信息记录介质上的物镜。
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公开(公告)号：US06590709B1
公开(公告)日：2003-07-08
申请号：US09062531
申请日：1998-04-17
Applicant: Yuichiro Ori , Koji Miyai , Hiromu Mukai , Shigeto Ohmori
Inventor： Yuichiro Ori , Koji Miyai , Hiromu Mukai , Shigeto Ohmori
IPC: G02B518
CPC classification number: B29D11/00769 , B29D11/00269 , B29D11/00432 , G02B5/1852 , G02B5/1876
Abstract: A diffractive optical element acts as a lens. The optical element has a diffraction grating. The diffractive grating is provided with a plurality of ridges. Each of the ridges has a transmissive surface. A sectional profile of the transmissive surface is composed of a plurality of successively connected strait lines of an identical length. The length varies from one ridge to another.
Abstract translation: 衍射光学元件用作透镜。 光学元件具有衍射光栅。 衍射光栅具有多个脊。 每个脊具有透射表面。 透射表面的截面轮廓由多条相同长度的相继连接的海峡线组成。 长度从一个脊到另一个不同。
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9.发明授权Diffusive optical element, illumination optical system, and image-shooting apparatus 失效扩散光学元件，照明光学系统和摄像装置公开(公告)号：US06515775B2
公开(公告)日：2003-02-04
申请号：US09732207
申请日：2000-12-07
Applicant: Yuichiro Ori
Inventor： Yuichiro Ori
IPC: G03H120
CPC classification number: G02B5/0242 , G02B5/0252 , G02B5/0278 , G02B5/0284 , G02B5/32
Abstract: A diffusive optical element exploiting holography is designed in such a way that, the higher the intensity of incident light in a wavelength range, the lower the rate at which the intensity of diffused light in that wavelength range is reduced with increasing angle relative to the maximum intensity direction. Thus, the lower the intensity of incident light in a wavelength range, the narrower the range of angles at which light is diffused in that wavelength range. This makes it possible to use light diffused at angles within a predetermined range relative to the maximum intensity direction, and thereby enhance light use efficiency in a wavelength range in which light intensity is comparatively low. This diffusive optical element is employed in an illumination optical system, which is used to illuminate photographic film from which to read images.
Abstract translation: 利用全息术的漫射光学元件被设计成使得在波长范围内入射光的强度越高，该波长范围内的漫射光的强度随着相对于最大值的角度的增加而减小 强度方向。 因此，入射光在波长范围内的强度越低，光在该波长范围内扩散的角度范围越窄。 这使得可以使用相对于最大强度方向在预定范围内的角度扩散的光，从而提高光强度相对较低的波长范围内的光使用效率。 这种漫射光学元件用于照明光学系统中，照明光学系统用于照射从中读取图像的照相胶片。
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公开(公告)号：US6067196A
公开(公告)日：2000-05-23
申请号：US784177
申请日：1997-01-15
Applicant: Yasushi Yamamoto , Yuichiro Ori
Inventor： Yasushi Yamamoto , Yuichiro Ori
CPC classification number: G02B15/161
Abstract: A zoom lens system has the first and second lens units. During zooming from a wide-angle end to a telephoto end, the lens units are moved to decrease a distance therebetween. The first lens unit has a positive refractive power. The second lens unit has a negative refractive power. The zoom lens system is provided with at least one surface having a power to diffract light.
Abstract translation: 变焦透镜系统具有第一和第二透镜单元。 在从广角端到长焦端的变焦期间，透镜单元被移动以减小它们之间的距离。 第一透镜单元具有正折光力。 第二透镜单元具有负折光力。 变焦透镜系统设置有至少一个具有衍射光的能力的表面。
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