Can anyone identify the aviators worn by James' character in Person of Interest?

Due to the shows growing popularity like the Burn Notice sunglasses these will probably be impossible to find later

Sample Pictures:
http://s1177.photobucket.com/albums/x349/Aramis_Pacitto/?action=view&cur...
http://haveuheard.net/wp-content/uploads/2011/09/person-of-interest1-300...