Menicon Co., Ltd.

Kenshiro Hattori

Hiroyuki Oyama

Koichi Inada

A holding device for cutting an ophthalmic lens includes a holding member which has a spherical sliding surface. A support member is provided with a spherical receiving surface which slidably supports the spherical sliding surface of the holding member. In addition, a fixing assembly is provided for adjustably positioning the lens holding member with respect to the support member. The fixing assembly includes a guide member which is rotatable about a support center axis, with the guide member including an eccentric guide hole, such that pins disposed between the guide hole and an extension of the lens holding member move (or adjust the position of) the lens holding member in response to rotation of the guide member. Rotation of the guide member thus results in sliding movement of the lens holding member with respect to the support member to thereby position the holding member with respect to the support member. A jig can be associated with the lens holding member, with the jig including a spherical surface having a spherical center which coincides with the spherical center of the spherical sliding surface of the lens holding member.

Holding device for cutting an ophthalmic lens

A holding device for cutting a toric lens includes a chuck member which holds the lens workpiece, with a rotation and guide assembly provided such that an axis of the chuck member moves along a line perpendicular to the axis of rotation. The chuck member is held by a chuck support member, and the chuck support member includes guide ends which move along an inner periphery of a guide hole of a guide member. The guide hole has a center axis which is eccentric with respect to a rotation axis in a direction orthogonal to the rotation axis, such that as the guide ends of the chuck support member move along the inner periphery of the guide hole, the chuck member rotates while the chuck axis moves along a line which is orthogonal to the rotation axis.

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Seki, Japan

Kenshiro Hattori