Title:
RETROREFLECTOR AND STEREOSCOPIC DISPLAY DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2015/181994
Kind Code:
A1
Abstract:
A stereoscopic display device (34) is configured by combining a retroreflector (26) and a half mirror (35). The retroreflector is formed by a side-by-side arrangement of unit optical blocks (15) each including a first and second mirror face (11, 12) intersecting each other at a right angle, and a third and fourth mirror face (13, 14) orthogonal to the first and second mirror faces (11, 12). The first and second mirror faces (11, 12) are formed on the bottom of each unit optical block (15), and the third and fourth mirror faces (13, 14) are formed on the sides of each unit optical block (15). Incident light entering a unit optical block (15) from a prescribed direction is reflected parallel to the incident light via the first and second mirror faces (11, 12), and the third or fourth mirror face (13, 14).
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Inventors:
OTSUBO MAKOTO (JP)
Application Number:
PCT/JP2014/071654
Publication Date:
December 03, 2015
Filing Date:
August 19, 2014
Export Citation:
Assignee:
ASUKANET CO LTD (JP)
International Classes:
G02B5/136; G02B30/00; G02B30/60
Foreign References:
| JP2011511303A | 2011-04-07 | |||
| JP2009025776A | 2009-02-05 |
Attorney, Agent or Firm:
NAKAMAE FUJIO (JP)
Fujio Nakamae (JP)
Fujio Nakamae (JP)
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