ZOOM LENS SYSTEM
作者： Kubota Yoji
DOI:
关键词: Power ratio 、 Group ii 、 Positive power 、 Negative power 、 Optics 、 Lens (optics) 、 Concave surface 、 Zoom lens 、 Physics
摘要: PROBLEM TO BE SOLVED: To provide a compact three-group zoom lens system having variable power ratio being about 3 and capable of correcting aberration so as to satisfy high image quality in mega order. SOLUTION: The 100 is constituted by arranging 1st group I negative power, 2nd II positive 3rd III this In the case fixed groups are moved. comprises 1 turning its strong concave surface an side 2 which front lens, 4th 4 rear then 5th 5 power. respective lenses 1st, have aspherical one surface, respectively. COPYRIGHT: (C)2006,JPO&NCIPI
lens.org 参考文章(3)
Genta Yagyu, Hitoshi Hagimori, Kazuhiko Ishimaru, Zoom lens device ,(2003)
Okada Naoshi, Kono Tetsuo, PHOTOGRAPHING LENS SYSTEM ,(2001)
Masaharu B Ishiwat Rm. Deguchi, Hironobu Hikarinomach Rm. Satoh, Masahiko Chigasaki Rm. Do. Yatsu, Kenji Shimoseya . . Sano, Takesuke Totsuka-cho Maruyama, Kenji Chigasaki Rm. D. Kobayashi, Zoom lens system ,(1990)