FORMING MOLD, PLATE MEMBERS OF FORMING MOLD, AND METHOD FOR MANUFACTURING FORMING MOLD

WIPO Patent Application WO/2022/097458

A1

Provided is a forming mold for a corner cube reflector, the forming mold including a plurality of plate members, wherein each of the plate members includes two opposite positioning surfaces, each of the positioning surfaces has a shape obtained by alternately connecting two kinds of flat surfaces that form an angle of 120 degrees therebetween, the respective kinds of flat surfaces are parallel to each other, a cross-section of the plate member perpendicular to the two kinds of flat surfaces has a shape in which regular hexagons having the same shape with the centers thereof disposed on a straight line are arranged such that adjacent regular hexagons share one side, one surface of the plate member surrounded by the two opposite positioning surfaces includes a set of three surfaces approximately orthogonal to each other and approximately square including two adjacent sides of each of the regular hexagons and having two adjacent sides respectively on two surfaces perpendicular to the cross-section of the regular hexagon, and the plurality of plate members are assembled by fitting the positioning surfaces such that one surface of the forming mold includes the set of three surfaces.

MAKI HISASHI (JP)
NISHIO YUKINOBU (JP)

PCT/JP2021/038385

May 12, 2022

October 18, 2021

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NALUX CO LTD (JP)

B29C33/38; G02B5/124

WO1997004940A1

1997-02-13

US3649153A	1972-03-14
JP2012137623A	2012-07-19
JP2011043760A	2011-03-03
JP2012108213A	2012-06-07
JP2005128421A	2005-05-19
JPS59192201A	1984-10-31
JP2006520712A	2006-09-14
JPS55121011A	1980-09-17
US1591572A	1926-07-06

FUSHIMI, Naoya (JP)

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