Title:
DISPLAY LENS MOLDING METHOD AND DISPLAY LENS MOLD SET
Document Type and Number:
WIPO Patent Application WO/2021/084586
Kind Code:
A1
Abstract:
[Problem] To provide a method for injection-molding a display lens by layering resins, the injection molding method having higher molding precision. [Solution] Provided are a display lens molding method, etc., the method having: a step for injection-molding a primary half-body of a display lens, the primary half-body molding step involving molding a joining-surface center part for joining with a secondary half-body into a concave shape so that in-plane stress of the secondary half-body uniformly decreases without being distributed disproportionately in the thickness direction during injection-molding of the secondary half-body; and a secondary half-body molding step for injection-molding the secondary half-body on a joining surface of the primary half-body.
Inventors:
ITO HAJIME (JP)
Application Number:
PCT/JP2019/042215
Publication Date:
May 06, 2021
Filing Date:
October 28, 2019
Export Citation:
Assignee:
DAITEC CO LTD (JP)
International Classes:
G02B3/00; B29C45/16; B29C45/26; B29L11/00
Foreign References:
| JP2006062359A | 2006-03-09 | |||
| JP2009214486A | 2009-09-24 | |||
| JP2006240210A | 2006-09-14 | |||
| JP2018065281A | 2018-04-26 | |||
| JPH03230920A | 1991-10-14 | |||
| JP2008107490A | 2008-05-08 |
Attorney, Agent or Firm:
KUDO Ichiro (JP)
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