Device and method for blocking optical lens

Details Device and method for blocking optical lens Device and method for blocking optical lens

2011-05-24

2011-05-24

Crispino, Richard (Department: 1747)

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Automatic and/or material-triggered control

C156S357000, C425S808000, C451S390000, C451S392000, C451S393000, C451S394000, C451S395000, C451S397000, C451S398000, C451S400000, C451S402000

Reexamination Certificate

active

07946325

ABSTRACT:
A centering device (13) is arranged to surround a loading table (11) on which a lens blank (1) is to be set, to set the geometric center of the lens blank (1) to coincide with the center of the loading table (11). The centering device (13) includes three clamp pins (31) which press the peripheral surface of the lens blank (1). When centering is ended, the loading table (11) on which the lens blank (1) is set is pushed up by a moving device (12) from a centering position (H1) to a block position (H2), and a peripheral portion of the lens blank (1) on a concave surface side is urged against the lower surfaces of locking portions (31A) of clamp pins (31). After a predetermined amount of wax (4) is dripped onto the lens blank (1), a lens holding unit (2) is moved downward by a predetermined amount and urged against the wax on the lens blank (1) to spread the wax thin and let the wax to solidify. Thus, the lens blank (1) and lens holding unit (2) are bonded to each other.

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Machine Translation of JP 2003-071691.
Machine Translation of JP 09-290340.

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