METHOD OF MANUFACTURING A MOLDED ARTICLE, MANUFACTURING DEVICE AND OBJECTIVE LENS FOR OPTICAL PICKUP
    1.
    发明申请
    METHOD OF MANUFACTURING A MOLDED ARTICLE, MANUFACTURING DEVICE AND OBJECTIVE LENS FOR OPTICAL PICKUP 有权
    制造成型制品的方法,制造装置和用于光学拾取的目标透镜

    公开(公告)号:US20070229964A1

    公开(公告)日:2007-10-04

    申请号:US11754018

    申请日:2007-05-25

    Abstract: The present invention relates to a method of manufacturing a molded article in the form of an optical element such as a glass lens by heat-softening a glass material such as optical glass and press molding it with high precision in a pressing mold as well as an objective lens for optical picking up. The method of manufacturing comprises press-molding a molding material to make a molded article, measuring an optical property of the molded article, correcting pressing rate of at least one of the pressing molds based on the optical property thus measured, and further press-molding to make a molded article with the corrected pressing rate. A pressing device comprising a pair of pressing molds having molding surfaces processed to prescribed shape, and a means of driving one of the pair of pressing molds at a prescribed rate to press mold a molding material supplied between the pressing molds is disclosed. The device further comprises a means for detecting an optical property, a shape or a number of the molded articles and a means for controlling driving of said means of driving by correcting pressing rate of the molds based on the detected property, shape or number.

    Abstract translation: 本发明涉及一种通过对诸如光学玻璃等玻璃材料进行热软化的玻璃透镜等光学元件的形状的制造方法,并且在压模中高精度地压制成型品, 物镜用于光学拾取。 制造方法包括:对成型体进行压制成型,测定成形品的光学特性,根据所测定的光学特性校正至少一个压模的冲压速度,进一步进行压制成形 以制造具有校正的按压速率的模制品。 公开了一种压制装置,其包括一对具有加工成规定形状的成型面的加压模具,以及以规定的速度驱动一对加压模具中的一个按压模具的装置,以将模压材料加压成型。 该装置还包括用于检测光学性质,形状或数量的模制品的装置,以及用于通过基于所检测的属性,形状或数量来校正模具的按压速度来控制所述驱动装置的驱动的装置。

    Positioning method of optical element, positioning member of optical element and optical unit, and manufacturing method thereof
    2.
    发明授权
    Positioning method of optical element, positioning member of optical element and optical unit, and manufacturing method thereof 有权
    光学元件的定位方法,光学元件和光学单元的定位构件及其制造方法

    公开(公告)号:US06507446B2

    公开(公告)日:2003-01-14

    申请号:US09893745

    申请日:2001-06-29

    CPC classification number: G02B7/02 G02B6/32 G02B7/027

    Abstract: The lateral V-shaped groove (2) and the longitudinal V-shaped groove (3), which cross each other, are formed on a surface of the substrate (1). When the optical element (100) is contacted with and supported by four ridges composed of sides (21, 22) of one V-shaped groove and sides (31, 32) of the other V-shaped groove, the optical element is positioned at the three-dimensional support position which is geometrically determined by the four points at which the four ridges and the surface of the optical element come into contact with each other.

    Abstract translation: 在基板(1)的表面上形成有横向彼此交叉的V形槽(2)和纵向V形槽(3)。 当光学元件(100)与由一个V形槽的侧面(21,22)和另一个V形槽的侧面(31,32)组成的四个脊接触并支撑时,光学元件位于 由四个脊和光学元件的表面彼此接触的四个点几何地确定的三维支撑位置。

    Method of producing molded article
    3.
    发明授权
    Method of producing molded article 失效
    生产模制品的方法

    公开(公告)号:US06334973B1

    公开(公告)日:2002-01-01

    申请号:US09671615

    申请日:2000-09-28

    Abstract: A molded article having a highly accurate outer form accuracy, including various optical products, is produced from a preform having a simple form by a press-molding, in which a fine pattern can be highly accurately transferred and no burr is formed. A first mold member having a concave portion with an inner surface made of a molding surface and a second mold member which is to be opposed to the first mold member and has a molding surface are used to press-mold the preform. The preform is shaped in a polyhedral form to permit fitting of the preform in the concave portion of the first mold member.

    Abstract translation: 包含各种光学产品的具有高精度外形精度的模制品由具有简单形式的预成型件通过压模成型制成,其中精细图案可以高精度地转印并且不形成毛刺。 使用具有由成型面形成的内表面的凹部和与第一模具部件相对并具有成形面的第二模具部件的第一模具部件来压制模具。 预成型件成形为多面体形状以允许预成型件在第一模具构件的凹部中的嵌合。

    Optical fiber fixing member, method of manufacturing the optical fiber fixing member, optical fiber array, and method of manufacturing the optical fiber array
    4.
    发明授权
    Optical fiber fixing member, method of manufacturing the optical fiber fixing member, optical fiber array, and method of manufacturing the optical fiber array 失效
    光纤固定部件,光纤固定部件的制造方法,光纤阵列,以及光纤阵列的制造方法

    公开(公告)号:US06324332B1

    公开(公告)日:2001-11-27

    申请号:US09445021

    申请日:1999-12-02

    Abstract: An optical fiber fixing member having optical fiber engagement grooves 2 and peaks 5 between the engagement grooves 2 is configured as a unitary structure by molding. A preform G is pressed with a mold 21 such that the concavities 25 of the mold 21, which comprises convexities 26 and concavities 25 for the transfer of the engagement grooves 2 and the peaks 5, respectively, are filled with the preform G only partially. The shape of the convexities 26 of the mold 21 is transferred, yielding optical fiber engagement grooves 2 whose surfaces are mold transfer surfaces 6. Because the preform G fills the concavities 25 only partially, the peaks 5 between the optical fiber engagement grooves formed by the filling of the concavities 25 are free rounded surfaces 7 whose shape does not reflect the shape of the concave bottom portions 25a of the mold 21.

    Abstract translation: 具有光纤接合槽2和接合槽2之间的峰5的光纤固定构件通过模制而构成为一体结构。 预成型体G用模具21压制,使得分别用于接合槽2和峰5的转移的凸部26和凹部25的模具21的凹部25仅部分地填充有预成型体G. 模具21的凸部26的形状被转印,产生表面为模具转印面6的光纤接合槽2.由于预成型体G仅部分地填充凹部25,所以在由 凹部25的填充是自由的圆形表面7,其形状不反映模具21的凹形底部25a的形状。

    Mold for fabricating optical fiber guide block
    5.
    发明授权
    Mold for fabricating optical fiber guide block 失效
    用于制造光纤导块的模具

    公开(公告)号:US6032490A

    公开(公告)日:2000-03-07

    申请号:US42947

    申请日:1998-03-17

    Abstract: In a grindstone for fabricating a mold which has optical fiber engagement portions of an optical fiber guide block used for aligning optical fibers, two main grinding surfaces are provided to form the optical fiber engagement portions contacted with the sides of the optical fibers and a tip end portion which is contiguous to the two main grinding surfaces and which has a contour contained within a predetermined area. The predetermined area has a triangle shape which is defined by two tangent lines along the two main grinding surfaces and a preselected line drawn between two points determined on the two main grinding surfaces. The two points are decided in accordance with a predetermined formula.

    Abstract translation: 在用于制造具有用于对准光纤的光纤引导块的光纤接合部分的模具的砂轮中,设置有两个主要研磨表面,以形成与光纤的侧面接触的光纤接合部分,以及尖端 该部分与两个主磨削表面相邻并且具有包含在预定区域内的轮廓。 预定区域具有三条形状,其由沿两个主研磨表面的两条切线和在两个主研磨表面上确定的两个点之间绘制的预选线限定。 这两点是按照预定公式决定的。

    Objective lens
    9.
    发明授权
    Objective lens 有权
    物镜

    公开(公告)号:US07345829B2

    公开(公告)日:2008-03-18

    申请号:US11787068

    申请日:2007-04-13

    Abstract: Lens aberration in an objective lens for recording and reproducing optical information, which is composed of a molded aspherical single lens, is inhibited while at the same time good lens productivity is attained. Also attained are excellent optical properties and high production efficiency in a mold processing step and a press molding step conducted to manufacture the lens. To this end there is provided an objective lens 1 having a convex aspherical surface formed at a first surface and a numerical aperture NA which satisfies the condition NA≧0.8. It is preferable to have an aspherical surface also at the second surface. A molding material that was premolded to a prescribed shape and is in a heated and softened state is press molded by using a pair of upper and lower molds having opposing molding surfaces, a molding surface shape is transferred by using a spherical molding material with a radius r and pressing the molding material between a pair of upper and lower molds, and the paraxial curvature radius R of the convex aspherical surface satisfies the following relation r/R≦1.35.

    Abstract translation: 用于记录和再现光学信息的物镜中的由模制的非球面单透镜组成的透镜像差被抑制,同时获得良好的透镜生产率。 在模具加工步骤和进行制造透镜的压制成型步骤中也获得了优异的光学性能和高生产效率。 为此,提供一种具有形成在第一表面上的凸非球面的物镜1和满足条件NA> = 0.8的数值孔径NA。 优选在第二表面也具有非球面。 将预成型为规定形状并处于加热软化状态的成型材料通过使用具有相对成型面的一对上下模具进行加压成型,通过使用具有半径的球形成型材料转印成型面形状 并且在一对上模和下模之间挤压成型材料,并且凸非球面的近轴曲率半径R满足以下关系r / R <= 1.35。

    Manufacturing method for glass molded products
    10.
    发明授权
    Manufacturing method for glass molded products 失效
    玻璃成型制品的制造方法

    公开(公告)号:US6105395A

    公开(公告)日:2000-08-22

    申请号:US998063

    申请日:1997-12-24

    Abstract: In a method for molding glass products having a fine structure as of an optical fiber holder with a high size precision, a mold used for the molding has the fine structure in a size such that a size difference occurring when the glass product is cooled down to a room temperature where at the end of molding with a pressure a size of the fine structure of the mold for glass product and a size of a fine structure of the glass product formed by transfer of the fine structure of the mold are the same as one another is so adjusted that a size of the fine structure of the completed glass product falls within a permissive size precision range. The mold may has a size satisfying, as a size of a fine structure at a room temperature, a formula [1+(.alpha.g-.alpha.m).times..DELTA.T+.alpha.g'.times..DELTA.T'].times.Sg, wherein Sg denotes a size of a fine structure of thc glass product at the room temperature; .alpha.g denotes a mean thermal expansion coefficient of the glass to be molded in a temperature range from the room temperature to the glass transition temperature of the glass to be molded; .alpha.m denotes a mean thermal expansion coefficient of the mold in a temperature range from the room temperature to the glass transition temperature of thc glass to be molded; .DELTA.T denotes a difference between the room temperature and the glass transition temperature of the glass to be molded; .DELTA.T' denotes a difference between a temperature at which the mold's pressure exerted to the glass product is released and the glass transition temperature, in a case where the mold's pressure exerted to the glass product is released at a temperature higher than the glass transition temperature after pressing the mold with a high pressure; and .alpha.g' is a thermal expansion coefficient of the glass to be molded at a mean temperature of summation of the glass sag temperature and the glass transition temperature.

    Abstract translation: 在具有高精度的具有精细结构的玻璃制品的方法中,用于成型的模具具有精细的结构,其尺寸使得当玻璃制品冷却至 在模制结束时的室温,其中用于玻璃制品的模具的精细结构的尺寸的压力和通过模具的精细结构的转移而形成的玻璃制品的精细结构的尺寸与一个 另一个被调整为使得完成的玻璃制品的精细结构的尺寸落在允许的尺寸精度范围内。 模具的尺寸可以满足在室温下的精细结构的尺寸,公式[1+(αg-αm)×DELTA T +αg'x DELTA T'] xSg,其中Sg表示尺寸 在室温下的玻璃制品的精细结构; αg表示在待模制玻璃的室温至玻璃化转变温度的温度范围内待模制的玻璃的平均热膨胀系数; αm表示在待模制玻璃的室温至玻璃化转变温度的温度范围内的模具的平均热膨胀系数; DELTA T表示待模制玻璃的室温和玻璃化转变温度之间的差异; DELTA T'表示在模具施加到玻璃制品上的压力释放温度高于玻璃化转变温度的情况下,模具施加到玻璃制品的压力的温度与玻璃化转变温度之间的差异 用高压压模具; 并且αg'是在玻璃下垂温度和玻璃化转变温度的平均温度下待模制的玻璃的热膨胀系数。

Patent Agency Ranking