Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ARTIFICIAL DIELECTRIC LENS
Document Type and Number:
WIPO Patent Application WO/2013/121686
Kind Code:
A1
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.

Inventors:
SUZUKI TAKEHITO (JP)
Application Number:
PCT/JP2012/083626
Publication Date:
August 22, 2013
Filing Date:
December 26, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
UNIV IBARAKI (JP)
International Classes:
H01Q15/04
Domestic Patent References:
WO1997022158A11997-06-19
WO1994011920A11994-05-26
Foreign References:
JP2010213021A2010-09-24
JP2011254482A2011-12-15
JP4183546B22008-11-19
Other References:
YOUNG-JIN PARK ET AL.: "A Photonic Bandgap (PBG) Structure for Guiding and Suppressing Surface Waves in Millimeter-Wave Antennas", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 49, no. 10, October 2001 (2001-10-01), pages 1854 - 1859, XP001108234
W. E. KOCK: "Metallic delay lens", BELL SYST. TECH. J., vol. 27, 1948, pages 58 - 82
See also references of EP 2816667A4
Attorney, Agent or Firm:
ASAMI Yasuo et al. (JP)
Yasuo Asami (JP)
Download PDF:
Claims: