| http://www.w3.org/ns/prov#value | - In this regard, it is preferred that a lens, such as an optical lens or the like, that includes an infrared filter be utilized, such as can be economically achieved by adding near infrared/infrared absorbing compounds (such as disclosed in U.S. Pat. Nos. 6,117,370; 5,959,105 and 5,024,923, which are hereby incorporated herein by reference) into an optical lens material, such as an acrylic or polyc
|
