Aklin, G.(1945). telephoto objective, U.S. Patent 2380207. WiQVZ{
Arai, Y. (1984). Large aperture telephoto lens, U.S. Patent D@ !r?E`
Cooke, G. H.(1965). Photographic objectives, in Applied {{>,c}O /
Engineering, Vol. 3, R. Kingslake(Ed.), Academic, New [kckE-y
Eggert, J.(1968). Photographic telephoto lenses of hing telephoto >msQ@Ch
2288956. F;kKn:X L
Horikawa, Y. (1984). Telephoto lens system, U.S. Patent Qe4 % A
Kreitzer, M. H.(1982). Internal focusing telephoto lens, 2i
!\H$u`
Matsui, S.(1982). telephoto lens system, U.S. Patent 4338001. ^,5%fl
Tanaka, T.(1986). Lens system, U.S. Patent 4575198.