Title:
PRODUCTION DEVICE FOR OPTICAL ELEMENT AND PRODUCTION METHOD FOR OPTICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2018/079837
Kind Code:
A1
Abstract:
This production device for an optical element O produces an optical element O comprising two spherical segments and a circular column section by press-forming a heat-softened molding material M with an upper die 2 and a lower die 3, the device comprising: a measuring unit for measuring the diameter or the mass of the molding material M; a calculation unit 41 for calculating, on the basis of the diameter or the mass of the molding material M measured by the measuring unit, the target thickness of the optical element O; and a control unit 42 for controlling the inter-die distance between the upper die 2 and the lower die 3 during press-forming so as to yield the target thickness of the optical element O calculated by the calculation unit 41.
Inventors:
MISAKA MOTOSUKE (JP)
Application Number:
PCT/JP2017/039353
Publication Date:
May 03, 2018
Filing Date:
October 31, 2017
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
C03B11/08; G02B3/00
Foreign References:
| JPH10167737A | 1998-06-23 | |||
| JP2005001966A | 2005-01-06 | |||
| JP2010059026A | 2010-03-18 | |||
| JP2009203139A | 2009-09-10 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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