Applied optics patents.
3,147,664; 3,152,207; 3,153,112; 3,155,001; 3,156,823; 3,157,521; 3,160,698; 3,161,777; 3,164,661; 3,171,027; 3,270,132; 3,277,772; 3,286,582; 3,308,275; 3,308,709; 3,309,220; 3,309,523; 3,309,956; 3,310,356; 3,310,703; 3,311,699; 3,312,824; 3,312,825; 3,313,290; 3,313,971; 3,314,330; 3,314,331; 3,314,345; 3,315,111; 3,316,405; 3,316,412; 3,319,516; 3,319,518; 3,320,428; 3,320,850; 3,321,265.