Blocking machine for lens manufacture
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 26, 1988
Issued Date -
N/A
app pub date -
Apr 20, 1987
filing date -
Apr 19, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosure relates to a machine for aligning and attaching partly-worked lens blanks to a block so that the remainder of the blank can be machined. The machine comprises a vee-shaped holder for supporting the block with it axis vertical above a moveable table on which the lens blank is supported. The moveable table is freely moveable in any direction in a horizontal plane and the machine includes means for bringing the block and partly-worked lens into contact and achieving alignment of the axes of the block and lens blank by permitting the lens blank to move in any direction in a horizontal plane. A film of liquid adhesive is provided between the surface of the lens blank and the block which acts both as a lubricant and as a bonding agent when correct alignment has been achieved.
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