LENS ARRAY, COMPOUND EYE OPTICAL SYSTEM AND LENS ARRAY MANUFACTURING METHOD

Title:

LENS ARRAY, COMPOUND EYE OPTICAL SYSTEM AND LENS ARRAY MANUFACTURING METHOD

Document Type and Number:

WIPO Patent Application WO/2014/119751

Kind Code:

A1

Abstract:

A thin lens array realizable by high-precision formation by means of simple injection molding, and a manufacturing method thereof are provided. In this lens array (10), a protruding section (16) is formed in a connecting region (10y) between multiple lens elements (10a) and extends in the direction in which the resin flows during molding, enabling filling, with little pressure drop, melted resin (J) in various locations in a cavity (70a) of a mold device (70) for forming the thin lens array (10), and enabling high-precision transcription of the optical surface, including of the lens elements (10a) far from a gate (GA). Further, a mold recess for transcribing the protruding section (16) has the role of aiding the uniform spread of the resin, and this facilitates preventing formation of welds due to wrapping around of the molten resin (J).

Inventors:

SHIMOMA TAKESHI (JP)
KONNO KENJI (JP)
TATEBAYASHI KEISUKE (JP)
IMAI TOSHIYUKI (JP)
MORI HAJIME (JP)

Application Number:

PCT/JP2014/052331

Publication Date:

August 07, 2014

Filing Date:

January 31, 2014

Export Citation:

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Assignee:

KONICA MINOLTA INC (JP)

International Classes:

G02B3/00; B29C33/42; G02B7/02; G02B13/00

Domestic Patent References:

WO2008102582A1	2008-08-28
WO2008081660A1	2008-07-10
WO2000016157A1	2000-03-23

Foreign References:

JP2003329808A	2003-11-19
JP2008116606A	2008-05-22
JP2012103553A	2012-05-31
JP2012533775A	2012-12-27

Attorney, Agent or Firm:

FUKUDA, MITSUHIRO (JP)
Mitsuhiro Fukuda (JP)

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