Title:
WAFER LENS, SHAPING MOLD FOR WAFER LENS, AND PRODUCTION METHOD FOR WAFER LENS
Document Type and Number:
WIPO Patent Application WO/2013/191034
Kind Code:
A1
Abstract:
Provided are the following: a wafer lens with good accuracy and on a substrate of which are formed a plurality of lenses and alignment marks; a shaping mold for the wafer lens; and a production method for the wafer lens. The volume of the inside of a lens annular portion (Lb) in a lens (L) (the volume of a portion of a lens (L) which comes inside a virtual cylindrical plane coaxial with a light axis and passing through a point (P3) when the lens (L) is severed at the virtual cylindrical plane) and the volume of the inside of a mark annular portion (AMb) of an alignment mark (AM) (the volume of a portion of the alignment mark (AM) which comes inside a virtual cylindrical plane coaxial with an axial line of the alignment mark and passing through point (P4) when the alignment mark (AM) is severed at the virtual cylindrical plane) are effectively the same. This configuration enables, when a curable resin material is provided between a substrate (ST) and shaping molds (M1, M2) using the individual drop method, problems such as the following to be avoided: due to an excess of supplied resin material, a large amount of the material overflows from a mark cavity of the shaping mold that forms the alignment mark (AM) causing adjacent lenses to become attached and thereby inviting cracks when the wafer lens is severed; or being unable to accurately form the alignment mark (AM) because there is not enough resin material.
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Inventors:
TANIGAWA HIROUMI (JP)
IMAI TOSHIYUKI (JP)
IMAI TOSHIYUKI (JP)
Application Number:
PCT/JP2013/066064
Publication Date:
December 27, 2013
Filing Date:
June 11, 2013
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G02B3/00; B29C33/40; B29C33/42; B29C39/10; B29C39/26; B29C39/44; B29D11/00; B29L11/00
Domestic Patent References:
| WO2011055654A1 | 2011-05-12 |
Foreign References:
| JP2008310213A | 2008-12-25 | |||
| JP2003248156A | 2003-09-05 | |||
| JP2006146083A | 2006-06-08 |
Attorney, Agent or Firm:
TAMURA Keijiro et al. (JP)
Keijichiro Tamura (JP)
Keijichiro Tamura (JP)
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