Title:
DIFFUSION PLATE, DISPLAY DEVICE, PROJECTION DEVICE, AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/057744
Kind Code:
A1
Abstract:
[Problem] To provide a diffusion plate whereby a more uniform diffusion angle distribution characteristic can be realized, a display device, a projection device, and an illumination device. [Solution] The present invention is a microlens-array-type diffusion plate comprising a single-lens group positioned on a surface of a transparent substrate, the opening size and curvature radius of each single lens constituting part of the single-lens group varying with respect to the single-lens group overall, the apex position of each single lens being irregularly disposed, and the energy distribution of light passing through the single-lens group being substantially uniform in a predetermined diffusion angle range.
More Like This:
Inventors:
ARIMA MITSUO (JP)
ISHIWATA MASAYUKI (JP)
NAGAHAMA TSUTOMU (JP)
ISHIWATA MASAYUKI (JP)
NAGAHAMA TSUTOMU (JP)
Application Number:
PCT/JP2016/079150
Publication Date:
April 06, 2017
Filing Date:
September 30, 2016
Export Citation:
Assignee:
DEXERIALS CORP (JP)
International Classes:
G02B5/02; F21S2/00; F21V3/00; F21V3/02; G02B3/00; G02F1/13357; G03B21/14; G09F9/00; F21Y115/10
Foreign References:
| JP2004505306A | 2004-02-19 | |||
| JP2006500621A | 2006-01-05 | |||
| JP2014510952A | 2014-05-01 | |||
| JP2011511310A | 2011-04-07 | |||
| JPH03192232A | 1991-08-22 | |||
| JP2004145330A | 2004-05-20 | |||
| JP2012181816A | 2012-09-20 |
Other References:
See also references of EP 3343252A4
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (JP)
Download PDF:
Previous Patent: TRANSDERMALLY ABSORBABLE COMPOSITION
Next Patent: DIELECTRIC THIN FILM, CAPACITOR ELEMENT, AND ELECTRONIC COMPONENT
Next Patent: DIELECTRIC THIN FILM, CAPACITOR ELEMENT, AND ELECTRONIC COMPONENT