Optical lens layout and blocking device

Details Optical lens layout and blocking device Optical lens layout and blocking device

1979-10-15

1982-05-18

Rosenberger, R. A.

Optics: measuring and testing

Lens or reflective image former testing

Optical center, cylinder axis, or prism measuring or...

51216LP, B22D 1900

Patent

active

043302033

ABSTRACT:
Given the known position of the optical center of an unfinished lens which is to be contoured for an eyeglass frame, this invention relates to a single device for locating and aligning the contemplated geometric center of what will be the finished lens with the optical center so that a block may be secured to the lens at such geometric center for holding the lens for contouring. The device comprises a lens holder situated above a slidable grid scale which is used in combination with a fixed scale to decenter the lens on the lens holder such that the contemplated geometric center of the lens will line up above the position of a block that may be accurately moved into place by moving the same slider containing the grid.

REFERENCES:
patent: 2917971 (1959-12-01), Goddu et al.
patent: 3049766 (1962-08-01), Buckminster
patent: 4138085 (1979-02-01), Bicskei

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