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1. 发明授权

US3739534A Method of producing toric lens elements with aspheric surfaces 失效
标题翻译：用多孔表面生产陶瓷透镜元件的方法
公开(公告)号：US3739534A
公开(公告)日：1973-06-19
申请号：US3739534D
申请日：1971-10-08
申请人： SCRIPTO INC
发明人： FULLER D
IPC分类号： B24B1/00 , B24B13/02 , B24B35/00
CPC分类号： B24B35/00 , B24B1/00 , B24B13/02 , Y10S359/90
摘要： A toric lens element is provided with an aspheric surface by first generating a cylindrical surface of revolution on a body of optical material and then honing this surface to aspherize it. While the work is being rotated about the axis of the cylinder, a honing member having a cutting surface of fixed radius is reciprocated back and forth along a path contained within a plane passing symmetrically through the work at an angle to the cylindrical axis. By controlling the curvature of the honing surface and the angle of honing, an aspheric surface is generated which approximates a fourth order sag plot effect. The particular relation is one in which the honing surface is formed with a radius of curvature which is equal to 1/RI cos2 phi +1/RTsin2 phi ; where RI is the instantaneous radius of curvature of the ellipse defined by the intersection of the cylindrical work surface and the plane in which the hone is reciprocated at that point of the ellipse at which the ellipse is intersected by its minor axis, RT is the radius of the cylindrical surface, phi is equal to 90*minus the angle of the plane, RL RIcos2 phi +RTsin2 phi with respect to the axis of rotation, and RL is the radius of the honing surface.
摘要翻译：复曲面透镜元件设置有非球面，首先在光学材料体上产生旋转的圆柱形表面，然后将该表面珩磨以使其变形。当工件围绕圆柱体的轴线旋转时，具有固定半径的切割表面的珩磨部件沿包含在与圆柱轴成一定角度对称地穿过工件的平面内的路径往复运动。通过控制珩磨表面的曲率和珩磨角度，产生近似四阶下垂曲线效应的非球面。特定的关系是其中珩磨表面形成有等于1 / RI cos2 phi + 1 / RTsin2 phi的曲率半径的关系。其中RI是椭圆的瞬时曲率半径，由圆柱形工作表面与椭圆在椭圆与其短轴相交的椭圆之间往复运动的平面的交点定义，RT为半径圆柱形表面的phi等于90°减去相对于旋转轴线的平面的角度RL = RIcos2 phi + RTsin2 phi，RL是珩磨表面的半径。

2. 发明授权

US3718079A Shutter assembly for photographic equipment 失效
标题翻译：快照装置摄影设备
公开(公告)号：US3718079A
公开(公告)日：1973-02-27
申请号：US3718079D
申请日：1971-10-08
申请人： SCRIPTO INC
发明人： FULLER D
IPC分类号： G03B9/14
CPC分类号： G03B9/14
摘要： A between-the-lens shutter which includes a sealed casing containing a liquid of selected index of refraction to couple two optical elements of the camera lens and which also houses a pair of shutter blades. The shutter blades are mounted to pivot about an axis offset with respect to an aperture through the casing and are controlled by a common cocking-releasing cam. The shutters are cocked sequentially and released simultaneously. A high shutter speed effect is achieved by allowing both shutter blades, when released to return simultaneously toward their normal or rest positions and a slow shutter speed effect is achieved by delaying the return of the second-cocked shutter blade when the two blades are released simultaneously. The delayed return is achieved by a latch made operative by slightly shifting the pivot mounting for the two shutter blades, the latch temporarily holding the second shutter blade in cocked position and being disengaged from this shutter blade in response to movement of the other shutter blade to its rest position after both blades have been simultaneously released by the cam.
摘要翻译：一种镜片间快门，其包括容纳选定折射率的液体的密封壳体，以耦合相机镜头的两个光学元件，并且还容纳一对快门叶片。快门叶片安装成围绕相对于穿过壳体的孔偏移的轴线枢转并且由公共的释放凸轮控制。百叶窗按顺序并同时释放。通过允许快门叶片当释放时同时朝向其正常或静止位置而实现快门速度效果，并且当两个叶片同时释放时延迟第二旋转快门叶片的返回来实现慢快门速度效果来实现高快门速度效果。通过稍微移动用于两个快门叶片的枢转安装来操作的闩锁来实现延迟返回，闩锁暂时将第二快门叶片保持在旋转位置，并且响应于另一个快门叶片的移动而与该快门叶片脱离接合两个叶片后的静止位置都被凸轮同时释放。

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