| CPC G02B 3/02 (2013.01) [G02B 1/041 (2013.01)] | 23 Claims | 

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               1. A method of manufacturing a removable lens stack, the method comprising: 
            providing a base layer including a substrate having a first side and a second side opposite the first side; and 
                stacking one or more removable lens layers on the base layer, each removable lens layer including a substrate having a first side and a second side opposite the first side, each removable lens layer further including a fluoropolymer coating on the second side of the substrate, the one or more removable lens layers being stacked on top of the base layer such that the second side of the substrate of each removable lens layer faces the first side of the substrate of the immediately preceding layer. 
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