Plastic lens block with ribs
AssigneeSummitt Molding & Engineering, Inc.
InventorsCharles T. Rothe, Craig Buckner
Life of this patent
Estimating the term…
Abstract
A lens block for use in securing an optical lens during cutting, grinding and polishing of the lens is disclosed wherein the lens block is formed from a plastic material and includes various radially extending grooves for introducing an adhesive material between the lens block and a lens blank to be worked upon. The grooves also defined therebetween various ribs and upstanding surface portions which function to increase the surface area of the lens block for adhesion purposes and to provide additional structural rigidity to the lens block which prevents flexing of the block.
Claims19
A lens block for use in securing an optical lens during cutting, grinding and polishing of the lens, said lens block comprising:
- a unitary block body having a body mounting surface portion, an opposing lens mounting surface portion and a side portion spacing said body mounting surface portion from said lens mounting surface portion, said body mounting surface portion being spaced from said lens mounting surface portion in an axial direction;
- a plurality of spaced, radially extending grooves formed in said lens mounting surface portion;
- at least one additional groove formed in said lens mounting surface portion, said at least one additional groove interconnecting a predetermined number of said plurality of radially extending grooves;
- an axial bore hole extending from said body mounting surface portion to said lens mounting surface portion and opening into at least one of said plurality of radially extending grooves.
A lens block for use in securing an optical lens during cutting, grinding and polishing of the lens, block comprising a unitary block body having a body mounting surface portion and an opposing lens mounting surface portion including a central portion and a radially spaced outer peripheral portion, said lens mounting surface portion further including a plurality of spaced grooves extending radially from adjacent said outer peripheral portion toward said central portion, said plurality of grooves terminating radially outward from said central portion.
Dependencies are inferred from the claim text.