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公开(公告)号：US06761046B2
公开(公告)日：2004-07-13
申请号：US09882599
申请日：2001-06-15
IPC分类号： C03B1314
CPC分类号： C03B23/0013 , C03B23/004
摘要： A method and apparatus for making cylindrical glass preforms with convex, optical quality convex end surfaces is taught. A glass ball preform is placed on a heated lower platen. The temperature of the glass ball preform is raised to a temperature above the glass transition temperature of the glass ball preform. The glass ball preform is engaged with an upper platen. At least one of the upper platen and the lower platen is moved vertically to cause the gap between the upper platen and the lower platen to narrow to a predetermined dimension. Simultaneously, at least one of the upper platen and the lower platen is moved horizontally relative to the other platen to cause the glass ball preform to roll between the upper platen and the lower platen and form a cylindrical preform having a predetermined diameter, the cylindrical preform having convex, optical quality end surfaces.
摘要翻译： 教导了一种用于制造具有凸的，光学质量的凸出端面的圆柱形玻璃预制件的方法和装置。 将玻璃球预制件放置在加热的下台板上。 将玻璃球预制件的温度升高到高于玻璃球预制件的玻璃化转变温度的温度。 玻璃球预制件与上压板接合。 上压板和下压板中的至少一个垂直移动，使得上压板和下压板之间的间隙变窄到预定尺寸。 同时，上压板和下压板中的至少一个相对于另一个压板水平移动，以使玻璃球预制件在上压板和下压板之间滚动并形成具有预定直径的圆柱形预制件，该圆柱形预制件 具有凸的光学质量端面。
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公开(公告)号：US06385997B1
公开(公告)日：2002-05-14
申请号：US09570609
申请日：2000-05-12
IPC分类号： C03B2326
CPC分类号： C03B11/084 , C03B11/082 , C03B2215/05 , C03B2215/414 , C03B2215/50 , Y02P40/57
摘要： A method for fabricating a mold tool for molding optical elements is taught which comprises heating a mold tool blank made from a vitreous material to a temperature above the glass transition temperature of the vitreous material; generating an axial viscosity gradient in the mold tool blank; pressing a punch into an optical quality mold surface of the mold tool blank, the punch including a pressing surface with a predetermined geometry for forming an optical feature; cooling the mold tool blank to a temperature below the glass transition temperature of the material; and removing the punch from the mold tool blank thereby creating the optical feature in the optical quality mold surface. The axial viscosity gradient is achieved by creating an axial thermal gradient. Multiple optical features can be formed in the mold surface of the blank using a single punch such that the pressing, cooling and removing steps are repeated with the punch or the blank being translated to a different position between the last removing step and the next pressing step. In such manner, a high temperature glass mold tool can be formed which can be used to mold glass optical elements either individually or in arrays.
摘要翻译： 一种用于制造用于模制光学元件的模具的方法，包括将由玻璃质材料制成的模具坯料加热到高于玻璃质材料的玻璃化转变温度的温度; 在模具坯料中产生轴向粘度梯度; 将冲头压入模具坯料的光学质量模具表面中，冲头包括具有用于形成光学特征的预定几何形状的按压表面; 将模具坯料冷却到低于材料的玻璃化转变温度的温度; 并从模具坯料上移除冲头，从而在光学质量模具表面中形成光学特征。 通过产生轴向热梯度来实现轴向粘度梯度。 可以使用单个冲头在坯料的模具表面中形成多个光学特征，使得当冲头或坯料被转换到最后的去除步骤和下一个压制步骤之间的不同位置时，重复挤压，冷却和移除步骤 。 以这种方式，可以形成高温玻璃模具，其可以单独地或阵列地用于模制玻璃光学元件。
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公开(公告)号：US5190233A
公开(公告)日：1993-03-02
申请号：US684417
申请日：1991-04-12
IPC分类号： B65B41/16 , B65B41/00 , B65B41/12 , B65H19/26 , B65H20/12 , B65H35/04 , G03B17/26 , G03C1/76 , G03C3/00
CPC分类号： G03B17/26
摘要： An apparatus for cutting and feeding strips of web material includes a source (36) of an indeterminate length of web material; means (40-48) for withdrawing a predetermined portion (10) of web material from the source; a guide track (56,98-104) for receiving the lead end of the portion and guiding its edges along a curved path; a rotatable vacuum drum (60) positioned intermediate the ends of the curved path for gripping the portion; a cutter (50) for cutting the web to define a strip; and a motor drive arrangement (62,64,66) for rotating the vacuum drum to feed the strip along the curved path.
摘要翻译： 用于切割和进给幅材材料条的装置包括幅材材料长度不确定的源（36）; 用于从所述源中取出网材料的预定部分（10）的装置（40-48） 导轨（56,98-104），用于接收该部分的引导端并沿着弯曲路径引导其边缘; 位于弯曲路径的端部之间的可旋转真空鼓（60），用于夹紧该部分; 用于切割所述幅材以限定条带的切割器（50）; 以及用于旋转真空鼓以沿着弯曲路径供给条带的马达驱动装置（62,66,66）。
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公开(公告)号：US06305194B1
公开(公告)日：2001-10-23
申请号：US09354219
申请日：1999-07-15
申请人： Michael K. Budinski , Jayson J. Nelson , Phillip D. Bourdage , David A. Richards , Paul O. McLaughlin , Paul D. Ludington
发明人： Michael K. Budinski , Jayson J. Nelson , Phillip D. Bourdage , David A. Richards , Paul O. McLaughlin , Paul D. Ludington
IPC分类号： C03B2302
CPC分类号： C03B11/082 , C03B2215/414 , C03B2215/61
摘要： A method and apparatus is disclosed for compression molding arrays optical elements which may be later singulated. The apparatus includes first and second mold halves with the second mold half having a central nest and a plurality of predetermined negative optical surface features therein. A glass preform is placed in the central nest and the first and second mold halves and the glass preform are heated to at least the glass transition temperature of the glass preform. The glass preform is then pressed between the first and second mold halves to thereby form an integral array of optical elements with each of the optical elements being a positive of the predetermined negative optical surface features. The integrally formed array of optical elements is then cooled to below the glass transition temperature and removed from the first and second mold halves.
摘要翻译： 公开了用于压缩成型阵列的光学元件的方法和装置，其可以稍后被分割。 该装置包括第一和第二半模，其中第二半模具有中心嵌套和多个预定的负光学表面特征。 将玻璃预成型件放置在中心座中，将第一和第二半模和玻璃预制件加热至至少玻璃预制件的玻璃化转变温度。 然后将玻璃预制件按压在第一和第二半模之间，从而形成光学元件的整体阵列，其中每个光学元件是预定的负光学表面特征的正值。 然后将整体形成的光学元件阵列冷却至低于玻璃化转变温度并从第一和第二半模移除。
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5.发明授权Apparatus for removing air from between a master magnetic medium and a slave magnetic medium preceding anhysteretic transfer of signals from master to slave 失效用于从主磁介质和从属磁介质之间移除空气的装置，其中信号从主机到从机之间的非磁滞传输
公开(公告)号：US5426535A
公开(公告)日：1995-06-20
申请号：US99041
申请日：1993-07-29
CPC分类号： G11B15/605 , G03B17/24 , G11B5/865 , G03B2217/244
摘要： A prerecorded magnetic master web (54) and an unrecorded magnetic slave web (14), such as a photographic film having a magnetic coating, are brought into intimate contact for anhysteretic recording by wrapping the moving master web partially around a small diameter gimballed roller (66) positioned in close proximity to a rotating transfer drum (36); wrapping the moving slave web partially around a larger idler roller (34) positioned in close proximity to both the gimballed roller and the transfer drum; wrapping the slave web partially around the transfer drum with the master web wrapped outside the slave web; and evacuating a chamber or volume (68) formed among the webs, rollers and drum, to remove air from between the webs and cause them to converge into intimate contact at a nip upstream of a signal transfer zone in which a magnetic head (70) applies a decaying magnetic field to cause anhysteretic transfer from the master web to the slave web.
摘要翻译： 将预先记录的磁性母版网（54）和未记录的磁性从动网（14）（例如具有磁性涂层的照相胶卷）通过将移动的母版纸部分地围绕小直径的支撑滚珠滚筒（...）进行紧密接触以进行非滞后记录 66）定位成紧邻旋转的转印鼓（36）; 将移动的从动纤维网部分地围绕定位在靠近滚珠滚筒和转鼓的更大的惰轮（34）上; 将副卷筒纸部分地围绕转印鼓包裹，主纸幅包裹在从纸幅之外; 并排出形成在腹板，辊和滚筒之间的腔室或体积（68），以从腹板之间移除空气，并使它们在信号转移区上游的压区处会聚到紧密接触中，在该区域中磁头（70） 施加衰减磁场，使得从主网络到从网络的非磁滞传输。
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公开(公告)号：US06363747B1
公开(公告)日：2002-04-02
申请号：US09570564
申请日：2000-05-12
IPC分类号： C03B1100
CPC分类号： C03C3/062 , C03B11/08 , C03B40/02 , C03B2215/48 , C03B2215/50 , C03B2215/72 , C03C3/0745 , C03C3/12 , C03C3/145
摘要： A method for making working mold tools for use in a compression molding process for molding optical glass elements from high temperature glasses having Tg's in the range of from about 400° C. to about 850° C. An yttria aluminosilicate glass is fabricated by traditional melting and casting processes to thereby make an amorphous base material having a minimum apparent viscosity of 1015 poise at the temperature at which the optical glass elements are to be molded. A mold preform is made from the base material. A first surface figure for the optical element to be molded with the working mold tool is defined. A second surface figure for a master mold tool and a third surface figure for the working mold tool are computed based upon the first surface figure and the coefficients of thermal expansion of the optical element, the master mold tool, and the working mold tool, the temperature at which the working mold tool is molded, and the temperature at which the optical element is to be molded. A master mold tool is then ground and polished to achieve the second surface figure. The working mold tool is then molded from the mold preform using the master mold tool.
摘要翻译： 制造用于压缩成型工艺的工作模具的方法，用于从Tg为约400℃至约850℃的高温玻璃成型光学玻璃元件。氧化钇铝硅酸盐玻璃通过传统熔化 和铸造工艺，从而在光学玻璃元件将被模制的温度下形成具有1015泊的最小表观粘度的非晶基材。 模具预成型件由基材制成。 定义了用工作模具工具模制的光学元件的第一表面图形。 基于第一表面图形和光学元件，主模具和工作模具的热膨胀系数来计算主模具的第二表面图形和用于工作模具工具的第三表面图形， 加工模具的成型温度以及光学元件的成型温度。 然后将主模具工具研磨和抛光以实现第二表面图形。 然后使用主模具工具从模具预制件模制工作模具。
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公开(公告)号：US07249853B2
公开(公告)日：2007-07-31
申请号：US11105766
申请日：2005-04-13
CPC分类号： G03B21/208
摘要： An optical sub-system has an optical element having a curved surface featured with a plurality of recurring surface tooling marks. The depth of any surface tooling mark is less than 0.2 wavelengths, whereby light is diffracted on the curved surface. A spatial filter blocks the diffracted light and passes the undiffracted light.
摘要翻译： 光学子系统具有具有多个重复表面加工标记的曲面的光学元件。 任何表面加工标记的深度小于0.2个波长，由此光在弯曲表面上衍射。 空间滤光器阻挡衍射光并传递未衍射光。
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公开(公告)号：US5822038A
公开(公告)日：1998-10-13
申请号：US911289
申请日：1997-08-14
摘要： A method and apparatus for stretching and aligning film sheets to a lenticular substrate comprising supporting members for the film sheet, two actuator assemblies positioned on opposite sides of a film sheet with a rigid bar member connecting the actuator means, "flexible" clamping members to engage the edges of the film sheet, a constraint member for the film sheet and lenticular substrate and detection means to detect errors in positioning of the film sheet image (substrate) and lenticular substrate.
摘要翻译： 一种用于将薄片片材拉伸和定向到双凸透镜基底的方法和装置，包括用于薄膜片材的支撑部件，两个致动器组件位于膜片的相对侧上，具有连接致动器装置的刚性杆件，“柔性”夹紧构件以接合 膜片的边缘，用于膜片和透镜基板的约束构件以及检测膜片图像（基板）和透镜基板的定位误差的检测装置。
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