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CN109414796A 使用杯型磨具的透镜球面加工方法以及透镜球面加工装置 有权

使用杯型磨具的透镜球面加工方法以及透镜球面加工装置
摘要：
在透镜球面加工方法中，形成使得旋转的杯型磨具(9)抵接于透镜表面(5a)的抵接状态、以及使得杯型磨具(9)沿着透镜表面(5a)进行球心摆动的球心摆动状态，由此将透镜表面(5a)磨削成球面。在球心摆动状态下，将从球心摆动的摆动中心(P1)到杯型磨具(9)的与透镜表面(5a)的接触点(P3)的距离设定为与球面的半径(R)相同。将球心摆动的摆动幅度设定为：能够使得杯型磨具(9)的与透镜表面(5a)的接触点(P3)从透镜表面(5a)的一侧的外周缘侧向另一侧的外周缘侧移动而越过透镜表面上的透镜中心(P2)。
摘要（英）：

In a spherical lens surface processing method, a lens surface (5a) is ground to a spherical surface by forming a contacting state in which a rotating cup-shaped grinding stone (9) is placed in contactwith the lens surface (5a) and a sphere center oscillation state in which the cup-shaped grinding stone (9) oscillates along the lens surface (5a) centered on a sphere center. In the sphere center oscillation state, the distance from the center (P1) of the sphere center oscillation to the contact point (P3) of the cup-shaped grinding stone (9) with the lens surface (5a) is set to be the same as the radius (R) of the spherical surface. The oscillation width of the sphere center oscillation is set so that the contact point (P3) of the cup-shaped grinding stone (9) with the lens surface (5a) canmove from one peripheral edge of the lens surface (5a) past the lens center (P2) on the lens surface to the other peripheral edge.

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