Block mold and apparatus for blocking a lens
AssigneeSchneider GmbH & Co. KG
InventorsGunter SCHNEIDER, Klaus HOFMANN
Life of this patent
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Abstract
An apparatus and a block mold for blocking a lens are proposed, wherein the lens is blocked on a block piece by means of a block material. The space between the lens and the block piece is laterally delimited by a block mold. The block mold is preferably plate-shaped and has a plurality of block openings for forming different block sizes and has an integrated coolant channel. This enables easy and fast changing between different block sizes and very good cooling.
Claims20
A block mold for blocking a lens on a block piece by means of a block material,
- wherein the block mold laterally delimits a space between the lens and the block piece for the block material,
- wherein the block mold has a plurality of block openings which are formed differently to form different block sizes or are provided with different block inserts, and/or wherein the block mold has at least one coolant channel.
An apparatus for blocking a lens on a block piece by means of a block material, the apparatus having a block mold for laterally delimiting a space between the lens and the block piece for the block material,
- wherein the block mold has a plurality of block openings for forming different block sizes and/or has at least one coolant channel, and/or
- wherein the apparatus has a changing device, a dedicated changing drive and/or a guide for moving and/or displacing the block mold and/or for changing between different block openings to form different block sizes.
An apparatus for blocking a lens on a block piece by means of a block material, the apparatus having at least one block station,
- wherein the apparatus has two block stations along and/or parallel to a linear axis for loading with lenses to be blocked, feeding with block pieces and/or unloading of blocked lenses, and/or
- wherein the apparatus has a loading device for the block station and/or an unloading device, for the block station and/or a feeding device, for feeding the block station with block pieces, and/or
- wherein the apparatus has a magazine for block pieces and a feeding device and/or block piece conveying device for removing the block pieces, and/or for rotating the block pieces into a desired rotational position.
Dependencies are inferred from the claim text.