Title:
OPTICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2016/181895
Kind Code:
A1
Abstract:
[Problem] In a conventional flat plate lens, condensing functionality is weak, and size reduction (decreasing the focal distance and reducing the size of the lens) is significantly limited. [Solution] The present invention provides an optical element for condensing/diverging/refracting linearly polarized light using a plurality of wavelength plate regions of a photonic crystal. Using the features whereby a thin wavelength plate has an extremely large effective refractive index difference, and a phase difference can be continuously varied on a single substrate, it is possible to provide an optical element for condensing/diverging/refracting linearly polarized light. Because a lens can be formed by numerous thin wavelength plates in the present invention, the thickness of the lens as a whole can be made extremely small.
Inventors:
KAWAKAMI SHOJIRO (JP)
KAWASHIMA TAKAYUKI (JP)
IJIRO TOSHIKAZU (JP)
KAWASHIMA TAKAYUKI (JP)
IJIRO TOSHIKAZU (JP)
Application Number:
JP2016/063635
Publication Date:
November 17, 2016
Filing Date:
May 06, 2016
Export Citation:
Assignee:
AUTOCLONING TECH LTD (JP)
PHOTONIC LATTICE INC (JP)
PHOTONIC LATTICE INC (JP)
International Classes:
G02B5/30; G02B1/02
Domestic Patent References:
| WO2009044834A1 | 2009-04-09 | |||
| WO2004008196A1 | 2004-01-22 |
Foreign References:
| JP2010156896A | 2010-07-15 | |||
| US20130177273A1 | 2013-07-11 | |||
| US7715099B2 | 2010-05-11 |
Attorney, Agent or Firm:
HIROSE TAKAYUKI (JP)
Takayuki Hirose (JP)
Takayuki Hirose (JP)
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