Composite eyeglass lens laminating holder
OwnerHerbert M. Abramsinventor
Life of this patent
Estimating the term…
Abstract
Front and rear lenses of a composite eyeglass lens are laminated together by holding the front lens in an X, Y adjustable stage on a laminating axis, holding the rear lens in a predetermined position relative to the laminating axis, and moving the two lenses together on the laminating axis to spread an adhesive between them. The rear lens holder is rotatable around a laminating axis and has an adjustable center foot adhesively tacked to the rear lens and an array of surrounding pressure feet for pressing the rear lens uniformly against the front lens in a process that can be observed by the operator. Then, the adhesive between the pressed-together lenses is cured by UV radiation directed through the front lens before the lenses are removed from the laminator.
Claims16
A composite eyeglass lens laminating holder comprising:
- a. a center foot having a tacky adhesive face adhered to a rear surface of a rear lens at an optical center of the rear lens so that the center foot and the rear lens are mountable on a laminating axis passing normally through the optical center;
- and
- b. a plurality of pressure feet arranged around the center foot and movable relative to the center foot in the direction of the laminating axis, the position of the pressure feet being setable relative to the center foot to distribute bonding pressure force applied to the rear face of the rear lens.
A rear lens holder for a composite eyeglass lens laminator, the rear lens holder comprising:
- a. a center foot removably mountable on the laminator;
- b. an array of pressure feet arranged around the center foot;
- c. the center foot having a tacky adhesive surface engaging a rear face of the rear lens at the optical center of the rear lens through which a laminating axis extends;
- d. the array of pressure feet being movable relative to the center foot in the direction of the laminating axis and being lockable in different positions along the direction of movement;
- and
- e. the center foot and the array of pressure feet being rotatable around the laminating axis and movable along the laminating axis.
A system for distributing pressure over the rear face of a rear lens mounted on a holder of a composite eyeglass lens laminator, the system comprising:
- a. a center foot engaging an optical center of the rear lens and aligned with a cylindrical axis of the rear lens;
- b. the center foot being attachable to the holder to position the optical center of the rear lens on laminating axis through the optical center and to orient the cylindrical axis of the rear lens in a predetermined direction relative to the holder;
- and
- c. an assembly of pressure feet engaging regions of the rear face of the rear lens around the center foot, the pressure foot assembly being movable relative to the holder and being lockable in different positions relative to the holder, and the center foot being movable along the laminating axis to adjust the holder pressure applied to the center foot relative to the holder pressure applied to the pressure feet.
Dependencies are inferred from the claim text.