Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LIGHT DIFFUSION LENS MANUFACTURING DEVICE AND MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/039373
Kind Code:
A1
Abstract:
 An objective of the present invention is to provide a light diffusion lens manufacturing device that enables the efficient production of high quality light diffusion lenses having improved optical characteristics. The light diffusion lens manufacturing device is provided with: a pair of molds 15 which comprises a fixed mold 16 and a mobile mold 18, and in which is formed a cavity 22 that is for the final molded product and that delimits the shape of a light diffusion lens 14; a mold clamping device 62 to which the pair of molds 15 are mounted; a conveyance device 66 that has a chucking means capable of advancing and retreating between the pair of molds 15 when the pair of molds 15 is in an open state, and that inserts the semi-molded product 12 of the light diffusion lens 14 into the cavity 22 for the final molded product; a heating device 68 that has a heating means capable of advancing and retreating between the pair of molds 15 when the pair of molds 15 is in an open state, and that heats the surface of the inserted semi-molded product facing the fixed mold 16 until the surface is in a melted state; and an injection device that, after the pair of molds has been clamped, injects a molding material into the cavity 22 for the final molded product so that the molding material covers the melted surface of the semi-molded product 12.

Inventors:
KATSUMATA RYUICHI (JP)
Application Number:
PCT/JP2015/075585
Publication Date:
March 17, 2016
Filing Date:
September 09, 2015
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOSHIBA MACHINE CO LTD (JP)
International Classes:
B29C45/14; B29C33/12; B29C45/73; B29C45/78
Foreign References:
JPH10138291A1998-05-26
JP2008195005A2008-08-28
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Download PDF: