Dual tab lenses

Abstract

A stack of laminated transparent lenses consists of two alternating optically clear materials in intimate contact. The materials are a plastic lens and clear adhesive. The adhesive is uninterrupted. The lens and the adhesive have refraction mismatch of less than 0.2. A tab portion is part of each lens acts as an aid in peeling away the outermost lens after contamination of the lens layer during racing conditions. The lens stack can be mounted to the posts on the face shield or laminated directly to a windshield.

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       10 . A protective covering affixable to a viewing surface comprising: 
 a plurality of superposed removable lenses adhesively affixed to one another;    each removable lens being held to each successive lens with a clear uninterrupted adhesive layer interposed between each successive removable lens;    each lens having a first removable tab portion on a first distal end of the lens and a second removable tab portion at an opposed second distal end of the lens with respect to the first removable tab portion, the first and second removable tab portions do not have any adhesive layer on either side of the first and second removable tab portions such that when the plurality of superposed removable lenses is affixed to the viewing surface a user can quickly grasp the first removable tab portion with his/her left hand or quickly grasp the second removable tab portion with his/her right hand for removing the top lens of the optical stack of laminated removable lenses and exposing a clean lens directly underneath the removed top lens.    
   
   
       11 . The covering of  claim 10  wherein no reflections are evident through the plurality of removable lenses.  
   
   
       12 . The covering of  claim 11  wherein a refraction mismatch between the lens and adhesive is less than about 0.2.  
   
   
       13 . The covering of  claim 11  wherein a refraction mismatch between the lens and adhesive is less than about 0.12.  
   
   
       14 . The covering of  claim 10  wherein the adhesive is a water-based adhesive.  
   
   
       15 . The covering of  claim 10  wherein the adhesive is an oil based adhesive.  
   
   
       16 . The covering of  claim 10  wherein a distance between contact surfaces of each successive lenses is negligible.  
   
   
       17 . The covering of  claim 16  wherein the distance is about ⅙ mil.  
   
   
       18 . The covering of  claim 10  wherein the lens is fabricated from polymer polyethylene terephalate.  
   
   
       19 . A protective covering affixable to a viewing surface, the protective covering comprising: 
 a lens affixable to the viewing surface with a clear uninterrupted adhesive layer interposed between the viewing surface and the lens, the lens having a first removable tab portion on a first distal end of the lens and a second removable tab portion at an opposed second distal end of the lens with respect to the first removable tab portion, the first and second removable tab portions do not have any adhesive layer on either side of the first and second removable tab portions such that when the lens is affixed to the viewing surface a user can quickly grasp the first removable tab portion with his/her left hand or quickly grasp the second removable tab portion with his/her right hand for removing the lens and exposing the clean viewing surface underneath the removed top lens.    
   
   
       20 . The covering of  claim 19  wherein no reflections are evident through the lens and adhesive.  
   
   
       21 . The covering of  claim 20  wherein a refraction mismatch between the lens and adhesive is less than about 0.2.  
   
   
       22 . The covering of  claim 20  wherein a refraction mismatch between the lens and adhesive is less than about 0.12.  
   
   
       23 . The covering of  claim 19  wherein the adhesive is a water-based adhesive.  
   
   
       24 . The covering of  claim 19  wherein the adhesive is an oil based adhesive.  
   
   
       25 . The covering of  claim 19  wherein a distance between the contact surfaces of each successive lenses is negligible.  
   
   
       26 . The covering of  claim 25  wherein the distance is about ⅙ mil.  
   
   
       27 . The covering of  claim 19  wherein the lens is fabricated from polymer polyethylene terephalate.