"Pilots, Man Your Planes!"   
                                         WWII U.S. Naval Aviation Collector's Guide                                                                              
AN-6530 Goggles
The desire to personalize their flying clothing and equipment was common among wartime Navy fliers and generally, it was not discouraged by uniform regulations or local unit commanders. The customized "patriotic" example shown here combines a red-painted, "improved" cushion, white strap and blue lenses. Blue was not a standard lens color, but they were available commercially and are often seen in the C.F.S. civilian version of their MK-II goggle (shown below). It is displayed with the flier's named, private-purchase, summer helmet, similar in pattern to the Navy M-450.  "B.G. PFETSCH" is neatly ink-stamped on both earphone holders.

LT (jg) Bernard G. Pfetsch was an Avenger pilot with VC-12. He participated in two cruises with his squadron, performing convoy escort and anti-submarine patrols in the Atlantic, first aboard CVE-11 U.S.S. Card in the summer of 1944, then aboard CVE-13 U.S.S. Core in the spring of 1945. It is believed the blue lenses would have been helpful to reduce glare off the water while scanning the ocean's surface for signs of  enemy U-Boat activity.
Below:  An American Optical press release, published in a wartime newspaper, extolls the vertues of their curved glass lenses.
Below:  It appears that American Optical was given contracts to produce lenses for the AN-6530 by the A.A.F. and the Navy. The Navy contract was N288s-23746 (for all three colors of lens) and they were packed in boxes containing 60 pairs, one color per box. Libby-Owens-Ford Glass Company also had an A.A.F. contract for clear lenses, but we have yet to see a Navy contract lens from this manufacturer. Lenses of the same size and colors (green, amber and clear), intended for use in both the previous B-7 and MK-II goggles, were produced by Baush & Lomb Optical Company and are marked on the paper wrapper "Army" or "MK-II" accordingly. No doubt, many of these, from existing stocks, were used in AN-6530s as well. 
Below:  The patent drawing for the new curved lens, developed by AO's Dr. Tillyer, mentioned in the article above. They were a solution to the headaches airmen complained of caused by lenses without "prism power" used previously.