Aklin, G.(1945). telephoto objective, U.S. Patent 2380207. G6T_O
Arai, Y. (1984). Large aperture telephoto lens, U.S. Patent F(tx)V
~T3
Cooke, G. H.(1965). Photographic objectives, in Applied ee yHy"@
Engineering, Vol. 3, R. Kingslake(Ed.), Academic, New G1 vNt7
Eggert, J.(1968). Photographic telephoto lenses of hing telephoto {phNds%
2288956. 28 ?\
Horikawa, Y. (1984). Telephoto lens system, U.S. Patent bD/~eIcWL
Kreitzer, M. H.(1982). Internal focusing telephoto lens, Y;?{|
Matsui, S.(1982). telephoto lens system, U.S. Patent 4338001. 9I6a"PGDb
Tanaka, T.(1986). Lens system, U.S. Patent 4575198.