LENS UNIT AND MOBILE TERMINAL
To provide a lens unit and a mobile terminal capable of effectively reducing the size of a structure of a whole lens unit by effectively reducing the size of an entire lens barrel on the assumption that an optical parameter of the lens unit is the same by limiting a ratio of an outer diameter of a t...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a lens unit and a mobile terminal capable of effectively reducing the size of a structure of a whole lens unit by effectively reducing the size of an entire lens barrel on the assumption that an optical parameter of the lens unit is the same by limiting a ratio of an outer diameter of a tip end face of a lens barrel and an outer diameter of a tip end face of a rear lens barrel within a fixed range.SOLUTION: A lens unit is provided, the lens unit including a lens barrel including a front lens barrel 10 and a rear lens barrel 20 which are coaxially provided, in which a ratio of an outside diameter of a front end surface 101 of the front lens barrel to an outside diameter of a front end surface 109 of the rear lens barrel is within a predetermined range. By limiting the ratio between the outer diameter of the front end surface of the front lens barrel and the outer diameter of the front end surface of the rear lens barrel within a fixed range, it is possible to further reduce the size of the entire lens unit on the assumption that optical parameters are the same.SELECTED DRAWING: Figure 1
【課題】鏡筒の先端面の外径と後鏡筒の先端面の外径との比率を一定の範囲内に制限することで、レンズユニットの光学パラメータが同じであることを前提として、鏡筒全体の寸法を効果的に小さくし、レンズユニット全体の構造をより小型化することができるレンズユニット及び携帯端末を提供することを目的とする。【解決手段】レンズユニットを提供し、同軸に設けられた前鏡筒10と後鏡筒20とを含む鏡筒を含み、ここで、前記前鏡筒の先端面101の外径と前記後鏡筒の先端面109の外径との比が所定範囲内にある。本発明は、前鏡筒の先端面の外径と後鏡筒の先端面の外径との比率を一定の範囲内に制限することで、光学パラメータが同じであることを前提として、レンズユニット全体の構造をより小型化することができる。【選択図】図1 |
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