Title:
OPTICAL BODY, DIFFUSION PLATE, DISPLAY DEVICE, PROJECTION DEVICE, AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/123466
Kind Code:
A1
Abstract:
[Problem] To suppress the occurrence of periodic optical characteristics in a structural unit larger than an aperiodic structure in an optical body in which a microlens array serving as the aperiodic structure is arrayed and expanded in a wide area. [Solution] This optical body is a single or an aggregated plurality of aperiodic structure regions constituted by a single lens group comprising a plurality of single lenses. In the aperiodic structure region, the arrangement state of the single lens group is aperiodic as a whole, and the ratio of the size of the aperiodic structure region to the average aperture diameter of the single lens in the aperiodic structure region is 25 times or more.
Inventors:
ARIMA MITSUO (JP)
ISHIWATA MASAYUKI (JP)
NAGAHAMA TSUTOMU (JP)
ISHIWATA MASAYUKI (JP)
NAGAHAMA TSUTOMU (JP)
Application Number:
PCT/JP2017/043625
Publication Date:
July 05, 2018
Filing Date:
December 05, 2017
Export Citation:
Assignee:
DEXERIALS CORP (JP)
International Classes:
F21V5/04; G02B3/00; G02B5/02; G02F1/13357; G03B21/14; G09F9/00
Domestic Patent References:
WO2016143350A1 | 2016-09-15 | |||
WO2016052359A1 | 2016-04-07 |
Foreign References:
JP2013076881A | 2013-04-25 | |||
JP2012013748A | 2012-01-19 | |||
JP2012013748A | 2012-01-19 | |||
JP2005275000A | 2005-10-06 | |||
JP2012181816A | 2012-09-20 |
Other References:
See also references of EP 3550336A4
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (JP)
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