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1.发明授权Molded optical component with gate stubs removed from peripheral rim portions 失效具有从外围边缘部分移除的浇口短柱的模制光学部件
公开(公告)号：US5975882A
公开(公告)日：1999-11-02
申请号：US921341
申请日：1997-08-29
CPC分类号： B29D11/00413 , B29D11/00932 , B29C2793/009 , B29C37/02 , B29C45/382 , Y10S425/808
摘要： A molded optical component which is comprised of a lens portion, an annular outer rim integrally formed around the circumference of the lens portion, an annular reference surface formed on the circumference of the outer rim in a predetermined width along one end thereof, and an obliquely cut surface formed across the circumference of the outer rim by stripping a gate stub therefrom. The obliquely cut surface is extended from the other end of the outer rim up to a position falling short of near boundaries of the reference surface. A gate stub is removed from the molded optical component by bringing cutting edges of a rotary cutting tool into engagement with a circumferential portion of the outer rim at a predetermined angle of inclination with center axis of the latter thereby to remove circumferential portions of the outer rim including the gate sub and to form an obliquely cut surface crosswise of the circumference of the outer rim from the other end thereof up to a position falling short of the reference surface.
摘要翻译： 一种模制的光学部件，包括透镜部分，围绕透镜部分的圆周一体地形成的环形外边缘，沿着其一端以预定宽度形成在外边缘的圆周上的环形基准表面， 通过从其外缘剥离一个浇口短管而形成在外边缘的圆周上。 斜切面从外缘的另一端延伸到距基准面近边界的位置。 通过使旋转切削工具的切削刃与外边缘的圆周部分以预定的倾斜角度与后者的中心轴线接合，从模制的光学部件移除浇口短棒，从而去除外边缘的圆周部分 包括栅极辅助部分，并且从其另一端形成从外边缘的周边横向到斜下方的倾斜切割面，直到不参考基准面的位置。
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公开(公告)号：US6010647A
公开(公告)日：2000-01-04
申请号：US86621
申请日：1998-05-29
申请人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
发明人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
CPC分类号： B29D11/00028 , G02C7/06 , B29C45/00
摘要： A multifocal lens having a plurality of focal points with focal positions different from each other includes a central optical portion, centered at an optical axis, having a predetermined refractive index. The lens further includes at least one outer optical portion which is an optical member disposed like a ring around an outer periphery of the central optical portion so as to be centered at the optical axis, each having a different refractive index different from the predetermined refractive index and having an optical surface continuous with an optical surface of another optical portion disposed on the center side.
摘要翻译： 具有焦点位置彼此不同的多个焦点的多焦点透镜包括具有预定折射率的以光轴为中心的中心光学部分。 所述透镜还包括至少一个外部光学部分，所述外部光学部分是光学部件，所述光学部件围绕所述中心光学部分的外周设置为围绕所述光轴居中，每个具有不同于所述预定折射率的折射率 并且具有与设置在中心侧的另一光学部分的光学表面连续的光学表面。
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公开(公告)号：US6008955A
公开(公告)日：1999-12-28
申请号：US161743
申请日：1998-09-29
申请人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
发明人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
摘要： An optical lens made of plastic includes an optically functioning part, a flange part and disposed around the optically functioning part. The flange part has an outer circumferential face having a cylindrical surface about a lens optical axis. A gate-removed part is located at the outer circumferential face as an outward-projecting quadratic surface. The gate-removed part is located between a virtual outer circumferential face and a plane passing through a tolerance limit on the lens optical axis side. The virtual outer circumferential face is defined when a residual gate part is cut along a cylindrical surface coaxial with the lens optical axis and having a radius identical to that of the outer circumferential face. The plane is set on the lens optical axis side when the residual gate part is removed by cutting the flange part.
摘要翻译： 由塑料制成的光学透镜包括光学功能部分，凸缘部分并且设置在光学功能部分周围。 凸缘部分具有围绕透镜光轴的圆柱形表面的外周面。 门去除部分位于外圆周面上作为向外突出的二次曲面。 门去除部分位于透镜光轴侧的虚拟外圆周面和穿过公差极限的平面之间。 当沿着与透镜光轴同轴的圆柱表面切割剩余栅极部分并且具有与外周面的半径相同的半径时，限定虚拟外周面。 当通过切割凸缘部分去除剩余门部时，将平面设置在透镜光轴侧。
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公开(公告)号：US6050406A
公开(公告)日：2000-04-18
申请号：US120463
申请日：1998-07-23
申请人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
发明人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
CPC分类号： B65D71/70 , B65D21/0213
摘要： Provided is a storage case for a diffraction grating, which accommodates the diffraction grating in a constant orientation, so as to improve efficiency in the operation for assembling the diffraction grating. The storage sections each accommodate a diffraction grating Each storage section forms a storage space for accommodating a diffraction grating. The storage space is equipped with a rib for engaging the outer peripheral portion of the diffraction grating.
摘要翻译： 提供了一种用于衍射光栅的存储盒，其以恒定的方向容纳衍射光栅，以提高组装衍射光栅的操作的效率。 存储部分各自容纳衍射光栅每个存储部分形成用于容纳衍射光栅的存储空间。 存储空间配备有用于接合衍射光栅的外周部的肋。
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公开(公告)号：US6008957A
公开(公告)日：1999-12-28
申请号：US154749
申请日：1998-09-17
申请人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
发明人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
CPC分类号： G11B7/1372 , G02B3/02 , G11B7/22
摘要： A lens includes a center-of-gravity adjusting section in order to prevent the center of gravity of the lens from shifting due to removal of a gate portion formed during molding, thereby providing an optical lens which is easily handled and a method of making the optical lens. An optical lens having a flange at the outer periphery of an optically functioning portion includes a gate-cut section formed by cutting off a part of the flange together with a gate portion, continuously with the flange, and a center-of-axis adjusting section, formed by removing a part of the flange, for positioning the center of gravity in alignment with the optical axis of the optically functioning portion.
摘要翻译： 透镜包括重心调节部分，以便防止透镜的重心由于在模制过程中形成的门部分的移除而移动，从而提供易于处理的光学透镜以及使 光学透镜。 在光学功能部分的外周具有凸缘的光学透镜包括通过与凸缘连续地切断凸缘的一部分与栅极部分一起形成的切割部分和轴向中心调节部分 通过去除凸缘的一部分而形成，用于将重心定位成与光学功能部分的光轴对齐。
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公开(公告)号：US6088160A
公开(公告)日：2000-07-11
申请号：US161744
申请日：1998-09-29
申请人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
发明人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
CPC分类号： G02B7/026 , G02B5/1852
摘要： A diffractive optical element includes an optically functioning part including a diffraction grating and a flange part disposed around the optically functioning part. On an outer circumferential face of the flange part, there are at least three protrusions at respective different locations. The protrusions project outward from the outer circumferential face.
摘要翻译： 衍射光学元件包括光学功能部分，其包括衍射光栅和设置在光学功能部分周围的凸缘部分。 在凸缘部分的外周面上，在相应的不同位置处具有至少三个突起。 突起从外周面向外突出。
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公开(公告)号：US6055111A
公开(公告)日：2000-04-25
申请号：US92050
申请日：1998-06-05
申请人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
发明人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
CPC分类号： G02B7/022 , B29D11/00413 , B29D11/00432 , G02B3/00
摘要： A plastic lens which is easy to mold and has favorable optical precision. This plastic lens has a flange at the outer periphery of an optically functioning portion, a part of the peripheral surface of the flange being provided with a gate-positioning projection, and a side face of the gate-positioned projection including a cut-off portion.
摘要翻译： 塑料透镜，易于模制，光学精度良好。 该塑料透镜在光学功能部分的外周具有凸缘，凸缘的周面的一部分设有栅极定位突起，并且栅极定位的突起的侧面包括截止部分 。
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公开(公告)号：US5936782A
公开(公告)日：1999-08-10
申请号：US32785
申请日：1998-03-02
申请人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
发明人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
CPC分类号： G11B7/1353 , G11B7/1374 , G11B2007/0006 , G11B2007/13722
摘要： An objective lens for a pickup optical system for optically reading out information recorded in a recording medium , includes a first lens body and a second lens body integrally attached to a surface of the first lens body and having a micro Fresnel portion for focusing light to a predetermined position of the recording medium. When the objective lens is used for a pickup optical system, the micro Fresnel portion faces away from an accommodation region for accommodating the recording medium to prevent dust from attaching to the micro Fresnel portion.
摘要翻译： 用于光学读出记录在记录介质中的信息的拾取光学系统的物镜包括第一透镜体和与第一透镜体的表面整体连接的第二透镜体，并具有用于将光聚焦到 记录介质的预定位置。 当物镜用于拾取光学系统时，微型菲涅耳部分远离用于容纳记录介质的容纳区域，以防止灰尘附着到微型菲涅耳部分。
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公开(公告)号：US5905599A
公开(公告)日：1999-05-18
申请号：US161742
申请日：1998-09-29
申请人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
发明人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
CPC分类号： G02B7/02
摘要： An optical lens made of plastic comprises an optically functioning part, a flange part disposed around the optically functioning part, and a gate-removed part located at an outer circumferential face of the flange part. The gate-removed part is defined by removing a residual gate part projecting from the outer circumferential face. The surface of the gate-removed part is covered with a hygroscopicity adjusting part. The hygroscopicity adjusting part is made of a material less hygroscopic than the plastic of which the optical lens is made.
摘要翻译： 由塑料制成的光学透镜包括光学功能部分，设置在光学功能部分周围的凸缘部分和位于凸缘部分的外周面处的栅极去除部分。 通过去除从外周面突出的残留栅极部分来限定栅极去除部分。 浇口去除部分的表面被吸湿性调节部分覆盖。 吸湿性调节部分由比制造光学透镜的塑料少的吸湿性材料制成。
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公开(公告)号：US6034827A
公开(公告)日：2000-03-07
申请号：US122626
申请日：1998-07-27
申请人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
发明人： Yoshimitsu Nomura , Masaaki Fukuda , Takashi Ito , Kaneyoshi Yagi
CPC分类号： G02B27/62 , G02B27/0025 , G02B3/02
摘要： Provided is an optical lens which can reduce and easily adjust astigmatism. The optical lens has a flange at an outer periphery of an optically functioning portion. The flange has smaller-diameter sections recessed inward from its outer peripheral portion. The smaller-diameter sections are located at positions symmetrical to each other about an optical axis of the optically functioning portion.
摘要翻译： 提供了可以减少并且容易地调节散光的光学透镜。 光学透镜在光学功能部分的外周具有凸缘。 凸缘具有从其外周部向内凹陷的小直径部分。 较小直径部分位于相对于光学功能部分的光轴彼此对称的位置处。
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