Title:
METHOD FOR MANUFACTURING OPTICAL ELEMENT AND METHOD FOR MANUFACTURING REFLECTIVE-TYPE AERIAL IMAGE FORMING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2017/061389
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for manufacturing an optical element, which is capable of reducing the number of manufacturing steps and improving a yield while securing high parallelism between reflection surfaces. The method for manufacturing a light-transmissive optical element 1 in which reflection surfaces 4 parallel to the thickness direction are arranged in parallel to each other at predetermined intervals is provided with: a lamination step for laminating transparent base materials 2 each having the reflection surface 4 formed on at least one surface thereof via a spacer 15 arranged on the reflection surface 4, and forming a laminate 11 having a gap G between the base materials 2; a pressure reduction step for reducing pressure to set the gap G to be in a vacuum state by exhausting gas from an exhaust surface 11c to which the gap G of the laminate 11 is exposed; and a fixing step for fixing the laminate 11 by applying suction onto the exhaust surface 11c to fill the gap G with a liquid adhesive 3 from a suction surface 11b opposed to the exhaust surface 11c and curing the adhesive 3.
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Inventors:
KITANO HIROHISA (JP)
EGUCHI SUEHIRO (JP)
EGUCHI SUEHIRO (JP)
Application Number:
PCT/JP2016/079331
Publication Date:
April 13, 2017
Filing Date:
October 03, 2016
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
OPTCERAMICS LTD (JP)
SENYO OPTICAL CO LTD (JP)
MIKUNI SEIKYO CO LTD (JP)
OPTCERAMICS LTD (JP)
SENYO OPTICAL CO LTD (JP)
MIKUNI SEIKYO CO LTD (JP)
International Classes:
G02B5/08; B29C39/12; B29C39/42; G02B27/22
Domestic Patent References:
| WO2012133403A1 | 2012-10-04 |
Foreign References:
| JP2012252293A | 2012-12-20 | |||
| JP2006126828A | 2006-05-18 | |||
| JP2008142968A | 2008-06-26 | |||
| JP2010134415A | 2010-06-17 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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