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11. 发明授权

US6144500A Plastic lens 失效
标题翻译：塑料镜片
公开(公告)号：US6144500A
公开(公告)日：2000-11-07
申请号：US34605
申请日：1998-03-03
申请人： Makoto Iwaki , Haruyuki Ohashi
发明人： Makoto Iwaki , Haruyuki Ohashi
IPC分类号： B29D11/00 , G11B7/135 , G11B7/22 , G02B3/02
CPC分类号： B29D11/00932 , G11B7/1374 , G11B7/22
摘要： A plastic lens which can be positioned correctly during lens mounting. The plastic lens is used as a pickup lens on an optical head for an optical disk and it has a lens portion in the center with an annular rim formed on the periphery. The rim has two opposed surfaces, one of which provides a reference plane to effect positioning for fixing the plastic lens in a lens holder. The rim has a gate portion which remains to project from the periphery after a molten plastic material was injected through the corresponding channel during molding. The gate portion is cut off by a pair of cutting blades which are moved to come closer to each other in a direction substantially parallel to the optical axis of the lens portion. As the result of the cutting operation, a bur occurs at a distal end of the gate portion and it projects in a direction parallel to a plane orthogonal to the optical axis.
摘要翻译：镜头安装时可以正确放置的塑料透镜。塑料透镜用作光盘用光学头上的拾取透镜，并且其中心具有形成在周边上的环形边缘的透镜部分。边缘具有两个相对的表面，其中一个相对的表面提供参考平面以实现将塑料透镜固定在透镜保持器中的定位。在模制期间，熔融塑性材料通过相应的通道注入后，边缘具有保留从周边突出的浇口部分。门部分被一对切割刀片切断，所述一对切割刀片沿着基本上平行于透镜部分的光轴的方向彼此靠近移动。作为切割操作的结果，在门部的远端处产生毛刺，并且在与光轴正交的平面平行的方向上突出。

12. 发明授权

US5657168A Optical system of optical information recording/ reproducing apparatus 失效
标题翻译：光信息记录/再现装置的光学系统
公开(公告)号：US5657168A
公开(公告)日：1997-08-12
申请号：US527980
申请日：1995-09-14
申请人： Koichi Maruyama , Makoto Iwaki
发明人： Koichi Maruyama , Makoto Iwaki
IPC分类号： G02B27/00 , G11B7/135 , G02B3/02
CPC分类号： G11B7/1372 , G02B27/0025 , G11B7/1378 , G11B7/13922
摘要： An optical system of an optical information recording/reproducing apparatus includes a light source for emitting a generally parallel luminous flux. An objective optical system for converging the luminous flux emitted from the light source portion onto a medium is provided. The objective optical system can comprise a hologram lens or can have both surfaces formed as convex aspherical surfaces. A chromatic aberration correcting element having almost no power is adapted to correct chromatic aberration of the objective lens. A mechanism for independently actuating the objective lens at least in an optical axis direction is provided. Further, a beam splitter for splitting the luminous flux reflected by the medium from a light path directed to the light source portion and guiding the luminous flux to a light receiving system can be provided.
摘要翻译：光信息记录/再现装置的光学系统包括用于发射大致平行的光通量的光源。提供了一种用于将从光源部分发射的光束会聚到介质上的物镜光学系统。物镜光学系统可以包括全息透镜或者可以将两个表面形成为凸非球面。几乎没有功率的色像差校正元件适于校正物镜的色像差。提供了至少在光轴方向独立地致动物镜的机构。此外，可以提供一种分束器，其用于将由介质反射的光束从指向光源部分的光路分解并将光束引导到光接收系统。

13. 发明授权

US5644437A Optical system of optical information recording/reproducing apparatus 失效
标题翻译：光信息记录/再现装置的光学系统
公开(公告)号：US5644437A
公开(公告)日：1997-07-01
申请号：US527977
申请日：1995-09-14
申请人： Koichi Maruyama , Makoto Iwaki
发明人： Koichi Maruyama , Makoto Iwaki
IPC分类号： G02B27/00 , G11B7/135 , G02B9/04
CPC分类号： G11B7/1372 , G02B27/0025 , G11B7/1378 , G11B7/13922
摘要： An optical system of an optical information recording/reproducing apparatus includes an objective lens for converging a generally parallel luminous flux. A chromatic aberration correction element for correcting chromatic aberration of the objective lens is provided and has substantially no power. The chromatic aberration correcting element comprises a positive lens and a negative lens positioned in the generally parallel luminous flux. The positive and negative lenses of the chromatic aberration correcting element have substantially the same refractive index and different Abbe's number.
摘要翻译：光信息记录/再现装置的光学系统包括用于会聚大致平行的光通量的物镜。提供了用于校正物镜的色差的色像差校正元件，并且基本上没有功率。色差校正元件包括位于大致平行的光束中的正透镜和负透镜。色像差校正元件的正透镜和负透镜具有大致相同的折射率和不同的阿贝数。

14. 发明授权

US5638221A Optical system of optical information recording/reproducing apparatus 失效
标题翻译：光信息记录/再现装置的光学系统
公开(公告)号：US5638221A
公开(公告)日：1997-06-10
申请号：US527978
申请日：1995-09-14
申请人： Koichi Maruyama , Makoto Iwaki
发明人： Koichi Maruyama , Makoto Iwaki
IPC分类号： G02B27/00 , G11B7/135 , G02B9/04
CPC分类号： G11B7/1372 , G02B27/0025 , G11B7/1378 , G11B7/13922
摘要： An objective optical system of an optical information recording/reproducing apparatus includes a light source for emitting a generally parallel luminous flux, an objective optical system for converging the luminous flux emitted from the light source portion onto a medium and a chromatic aberration correcting element for correcting a chromatic aberration of the objective lens. The chromatic aberration correcting element is formed of three lens cemented together. A first lens and a third lens of the chromatic aberration correcting element have a same polarity power while a second lens has a different power from that of the first and third lenses. Incident and outgoing end faces of the chromatic aberration correcting element are formed as generally plane surfaces. A mechanism for independently actuating the objective lens at least in an optical axis direction is provided. Further, a beam splitter for splitting the luminous flux reflected by the medium from a light path directed to the light source portion and guiding the luminous flux to a light receiving system may also be provided.
摘要翻译：光信息记录/再现装置的物镜光学系统包括用于发射大致平行光束的光源，用于将从光源部分发射的光束会聚到介质上的物镜光学系统和用于校正的色像差校正元件物镜的色差。色差校正元件由三个透镜粘合在一起形成。色差补偿元件的第一透镜和第三透镜具有相同的极性功率，而第二透镜具有与第一透镜和第三透镜的功率不同的功率。色像差校正元件的入射端和出射端面形成为大致平面。提供了至少在光轴方向独立地致动物镜的机构。此外，还可以提供一种分束器，用于将由介质反射的光束从指向光源部分的光路分解并将光通量引导到光接收系统。

15. 发明授权

US6115175A UV image forming optical system 失效
标题翻译：紫外成像光学系统
公开(公告)号：US6115175A
公开(公告)日：2000-09-05
申请号：US577160
申请日：1995-12-22
申请人： Koichi Maruyama , Makoto Iwaki , Syunitirou Wakamiya , Shigeo Kubota , Hiroshi Suganuma , Minoru Takeda
发明人： Koichi Maruyama , Makoto Iwaki , Syunitirou Wakamiya , Shigeo Kubota , Hiroshi Suganuma , Minoru Takeda
IPC分类号： G02B13/14 , G02B13/24 , G03F7/20 , H01L21/027 , G01B11/00 , G02B11/00
CPC分类号： G03F7/70241 , G02B13/143
摘要： A UV image forming optical system includes a collimating lens for collimating light emitted from a UV light source, an imaging lens for forming an image of the collimated light transmitted through the collimating lens, and a beam splitting optical system positioned in an optical path of the collimated light between the collimating lens and the imaging lens. At least one of the collimated light emitted from the collimating lens and the light transmitted through the imaging lens, reflected by a reflector and transmitted again through the imaging lens is made incident upon an external viewing optical system.
摘要翻译： UV图像形成光学系统包括用于准直从UV光源发射的光的准直透镜，用于形成通过准直透镜透射的准直光的图像的成像透镜，以及位于所述准直透镜的光路中的分束光学系统准直透镜与成像透镜之间的准直光。从准直透镜发射的准直光中的至少一个和透过成像透镜的光被反射器反射并再次透过成像透镜，被入射到外部观察光学系统上。

16. 发明授权

US6052232A Molded plastic lens 失效
标题翻译：塑胶镜片
公开(公告)号：US6052232A
公开(公告)日：2000-04-18
申请号：US69211
申请日：1998-04-29
申请人： Makoto Iwaki
发明人： Makoto Iwaki
IPC分类号： G02B3/00 , G02B7/02
CPC分类号： G02B7/022
摘要： A plastic lens is molded from a suitable transparent thermoplastic resin, and has a lens body and an annular portion integrally formed around the lens body. The annular portion has an annular surface, as a first positioning surface, extending perpendicularly from a peripheral outer edge of a lens surface of the lens body with respect to an optical axis of the lens body, and a peripheral cylindrical surface, as a second positioning surface, extending perpendicularly with respect to the first positioning surface. A right-angled annular corner, defined by an intersection of a hypothetical extension of the first positioning surface and a hypothetical extension of the second positioning surface, is eliminated.
摘要翻译：塑料透镜由合适的透明热塑性树脂模制，并且具有透镜体和围绕透镜体一体形成的环形部分。环形部分具有作为第一定位表面的环形表面，该第一定位表面相对于透镜主体的光轴从透镜主体的透镜表面的周边外边缘垂直延伸，并且周向圆柱形表面作为第二定位表面，相对于第一定位表面垂直延伸。消除了由第一定位表面的假想延伸和第二定位表面的假想延伸部的交点限定的直角环形角。

17. 发明授权

US5491587A Collimating lens for optical system using semiconductor laser 失效
标题翻译：使用半导体激光的光学系统准直透镜
公开(公告)号：US5491587A
公开(公告)日：1996-02-13
申请号：US909040
申请日：1992-07-06
申请人： Makoto Iwaki , Koichi Maruyama , Makoto Iki
发明人： Makoto Iwaki , Koichi Maruyama , Makoto Iki
IPC分类号： G02B13/18 , G02B27/00 , G11B7/135 , G02B27/30
CPC分类号： G11B7/1372 , G02B13/18 , G02B27/0025 , G11B7/1376
摘要： A collimating lens system comprises a chromatic aberration correction element and a converging lens which has both surfaces formed of a convex aspherical surface. The converging lens has no aberrations except chromatic aberration. The chromatic aberration correction element has small refractive power adapted to correct a chromatic aberration of the converging lens, and the element is constructed of positive and negative lenses cemented to each other. The positive lens and the negative lens have almost the same refractive index, and have different dispersion.
摘要翻译：准直透镜系统包括色像差校正元件和具有由凸非球面形成的两个表面的会聚透镜。会聚透镜除色差外没有像差。色差校正元件具有适于校正会聚透镜的色差的小折射率，并且元件由正交和负透镜构成。正透镜和负透镜具有几乎相同的折射率，并且具有不同的色散。

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