Title:
GAP-FILLING MICROLENS ARRAY FOR IMPROVING HOMOGENEITY AND EFFICIENCY
Document Type and Number:
WIPO Patent Application WO/2020/067625
Kind Code:
A1
Abstract:
The present invention relates to a gap-filling microlens array arranged on one surface of an optical substrate so as to be divided into basic lenses and sub-lenses, and the shapes of the respective base sides of the basic lenses and the sub-lenses are the same as or different from any one from among a polygonal shape, a circular shape, an oval shape, and an atypical shape and are an aspherical shape satisfying the sag profile of formula (1) below, the basic lenses and the sub-lenses have the same ratio of a pitch size to a sag value as in formula (2) below, the basic lenses are randomly arranged so as to have a part overlapping with an adjacent basic lens, the maximum length of opening parts between the basic lenses in x- and y-axis directions is 1-20% of the maximum pitch size of the basic lenses in the x- and y-axis directions, the sub-lenses are arranged in the opening parts, and the maximum length in the x- and y-axis directions of parts overlapping with adjacent basic lenses and the sub-lenses is 1-20% of the maximum pitch size of the sub-lenses in the x- and y-axis directions.
Inventors:
OH EUN SONG (KR)
YANG DAE WOONG (KR)
SONG HO YOUNG (KR)
YANG DAE WOONG (KR)
SONG HO YOUNG (KR)
Application Number:
PCT/KR2019/006466
Publication Date:
April 02, 2020
Filing Date:
May 30, 2019
Export Citation:
Assignee:
YNG INC (KR)
International Classes:
G02B3/00
Foreign References:
| KR20120123409A | 2012-11-08 | |||
| KR20050052509A | 2005-06-02 | |||
| KR20160103541A | 2016-09-01 | |||
| KR20050080697A | 2005-08-17 | |||
| KR20140002935A | 2014-01-09 |
Attorney, Agent or Firm:
INNO PATENT & LAW FIRM (KR)
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