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ARTIFICIAL DIELECTRIC LENS

Foreign code F140007851
File No. S2012-0205-C0
Posted date Mar 11, 2014
Country WIPO
International application number 2012JP083626
International publication number WO 2013121686
Date of international filing Dec 26, 2012
Date of international publication Aug 22, 2013
Priority data
  • P2012-030576 (Feb 15, 2012) JP
Title ARTIFICIAL DIELECTRIC LENS
Abstract [Problem] To easily enable positioning and enable acquisition of a desired refractive index. [Solution] When a light axis is the z-axis, and the axes orthogonal to the z-axis are the x-axis and y-axis, multiple metal plates (10) comprise multiple groove portions formed in the x-axis direction, and have external shapes that are the shapes of cross-sections of a lens, said cross sections: following the y-axis from a bottom edge to a center, and from the center to a top edge; each being separated by a specified interval; and being parallel to the x-z plane. A metal dielectric lens (1) is formed by layering the metal plates (10) so that each is separated by the specified interval and is parallel to the x-z plane. By means of the aforementioned structure, a refractive index corresponding to the number, width and depth of the groove portions can be obtained, and the structure transmits visible light.
Scope of claims (In Japanese)[請求項1]
レンズの形状が凹、凸またはその組合せからなり、該レンズの光軸をz軸とし、z軸に直交する軸をx軸およびy軸とした際に、x軸方向に複数本の溝部が形成され、外形形状が、下縁から中央および中央から上縁に至るまでのy軸に沿った所定の間隔毎における少なくとも片面が球面状またはシリンダー状のレンズのx-z面に平行な各断面の形状とされている複数枚の導電板片を、前記所定の間隔を隔ててx-z面に平行になるよう積層することにより前記レンズが形成されており、前記溝部の本数と幅と深さとのパラメータとに応じて遅波されて集光されることを特徴とする人工誘電体レンズ。
[請求項2]
前記溝部が、前記導電板片の表面と裏面とに複数本ずつ形成されていることを特徴とする請求項1記載の人工誘電体レンズ。
[請求項3]
設計周波数の波長をλとした際に、前記溝部の幅が約λ/10以下とされていることを特徴とする請求項1または2記載の人工誘電体レンズ。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • IBARAKI UNIVERSITY
  • Inventor
  • SUZUKI TAKEHITO
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IS KE KG KM KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG
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