Patent ID: 11933943
Assignee: LAMINATED FILM LLC
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A method of manufacturing a stack of peelable lenses to have a target peel strength, the method comprising:
coating a first lens with a first adhesive coating;
heating the first adhesive coating to evaporate at least some solvent of the first adhesive coating and to initiate curing of the first adhesive coating;
after said heating the first adhesive coating, exposing the first adhesive coating to ultraviolet light to continue curing of the first adhesive coating;
after said exposing the first adhesive coating to ultraviolet light, laminating a second lens onto a surface of the first adhesive coating to produce a first stack of lenses;
coating a third lens with a third adhesive coating;
heating the third adhesive coating to evaporate at least some solvent of the third adhesive coating and to initiate curing of the third adhesive coating;
after said heating the third adhesive coating, exposing the third adhesive coating to ultraviolet light to continue curing of the third adhesive coating;
after said exposing the third adhesive coating to ultraviolet light, laminating a fourth lens onto a surface of the third adhesive coating to produce a second stack of lenses;
coating the second lens with a second adhesive coating;
heating the second adhesive coating to evaporate at least some solvent of the second adhesive coating and to initiate curing of the second adhesive coating;
after said heating the second adhesive coating, exposing the second adhesive coating to ultraviolet light to continue curing of the second adhesive coating, wherein parameters of the heating and the exposing of the first, second, and third adhesive coatings are selected such that the first, second, and third adhesive coatings are only partially cured to result in a peel strength of the stack that is less than the target peel strength;
after said exposing the second adhesive coating to ultraviolet light, laminating the second stack of lenses onto a surface of the second adhesive coating to produce a combined stack of lenses from the first and second stacks of lenses; and
exposing the combined stack of lenses to an electron beam to sterilize the combined stack of lenses and to continue curing of the first adhesive coating, the second adhesive coating, and the third adhesive coating.