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Patent Searching and Data


Title:
WAFER LENS PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/024745
Kind Code:
A1
Abstract:
The aim is to regulate thickness on the optical axis in the production of wafer lenses. Disclosed is a wafer lens production method that is equipped with a dispensing process for dropping resin onto a forming die (64), an imprinting process for pressing either the forming die (64) or a glass substrate (2) toward the other, and a releasing process for releasing the glass substrate (2) from the forming die (64), and that repeats the processing from the dispensing process to the releasing process as a single cycle and successively forms resin lenses (4) on the glass substrate (2); wherein the height (A) of the non-lens area (6) surrounding the lenses (4) and the height (B, C) of the glass substrate (2) are measured between the releasing process of a first cycle and the dispensing process of a second cycle, and the position of the forming die (64) is corrected for the imprinting processes of the second cycle on, on the basis of the heights (A-C).

Inventors:
FUJII YUITI (JP)
FUJIMOTO AKIHIRO (JP)
TAKITANI TOSHIYA (JP)
HOSOE SHIGERU (JP)
Application Number:
PCT/JP2010/064157
Publication Date:
March 03, 2011
Filing Date:
August 23, 2010
Export Citation:
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Assignee:
KONICA MINOLTA OPTO INC (JP)
FUJII YUITI (JP)
FUJIMOTO AKIHIRO (JP)
TAKITANI TOSHIYA (JP)
HOSOE SHIGERU (JP)
International Classes:
B29C39/06; B29C39/10; B29C39/44; G02B3/00; B29L11/00
Foreign References:
JP2009018578A2009-01-29
JP2003033926A2003-02-04
JP2007137051A2007-06-07
JP2008279772A2008-11-20
JP2010080632A2010-04-08
JP3926380B12007-06-06
US20060259546A12006-11-16
Other References:
See also references of EP 2474402A4
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