Title:
OPTICAL DEVICE, OPTICAL SYSTEM, AND TICKET GATE
Document Type and Number:
WIPO Patent Application WO/2016/114103
Kind Code:
A1
Abstract:
An optical device that has a light-guiding plate that is provided with: first light-convergence parts that are provided in a first region; and second light-guiding parts that are provided along the light-guidance direction of the light-guiding plate in a second region that is different from the first region. The light-convergence parts have respective optical surfaces that cause emission light to be emitted from an emission surface in directions that substantially converge at a convergence point in space or in a convergence line or that substantially diverge from a convergence point in space or from a convergence line. The light-convergence parts have different convergence points or convergence lines. A first image is formed in space from the aggregation of a plurality of convergence points or convergence lines formed by the first light-convergence parts, and a second image is formed in space from the aggregation of a plurality of convergence points or convergence lines formed by a plurality of the second light-convergence parts. When light that is parallel to the light-guidance direction of the light-guiding plate is being projected onto a surface that is orthogonal to the emission surface, the first light-convergence parts are causing emission light to be emitted at a first angle to the emission surface, and the second light-convergence parts are causing emission light to be emitted at a second angle to the emission surface.
Inventors:
SHINOHARA MASAYUKI (JP)
KITAMURA NORIKAZU (JP)
HIROSE YUJI (JP)
TANOUE YASUHIRO (JP)
OKUDA MITSURU (JP)
OKADA KAZUYUKI (JP)
KITAMURA NORIKAZU (JP)
HIROSE YUJI (JP)
TANOUE YASUHIRO (JP)
OKUDA MITSURU (JP)
OKADA KAZUYUKI (JP)
Application Number:
PCT/JP2015/086573
Publication Date:
July 21, 2016
Filing Date:
December 28, 2015
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
G02B27/22; F21V8/00; G02B6/122
Foreign References:
| JP2009540440A | 2009-11-19 | |||
| JP2008275922A | 2008-11-13 | |||
| US20140268327A1 | 2014-09-18 | |||
| JP2000510603A | 2000-08-15 | |||
| JPH10162177A | 1998-06-19 |
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
Ryuka international patent business corporation (JP)
Ryuka international patent business corporation (JP)
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