H - Electricity – 01 – J
Patent
H - Electricity
01
J
33/66
H01J 9/24 (2006.01) B24B 13/005 (2006.01) B24B 13/015 (2006.01) C03B 11/10 (2006.01) H01J 29/89 (2006.01)
Patent
CA 1318500
Abstract of the Disclosure A system is disclosed for externally locating the geometric center of an internal lens element which requires that an external reference surface be accurately formed so as to lie concentrically with the central axis of the internal lens element. This is a accomplished in a pressing operation by precisely aligning and securing a ring element to a plunger member. Three points are then selected on the outer reference surface which are not only utilized for positioning the internal lens element for grinding an outer surface to a desired thickness, but also are utilized for aligning and affixing an external lens system in geometric alignment with the internal lens.
600196
Lopata Donald John
Mathew Robert Lawrence
Corning Incorporated
Gowling Lafleur Henderson Llp
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