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Patent Searching and Data


Title:
MANUFACTURE OF FRESNEL LENS
Document Type and Number:
Japanese Patent JP2001030364
Kind Code:
A
Abstract:

To provide a low-priced Fresnel lens which is hardly deformable and free from scratches on a projecting part formed on the surface of the lens and its manufacturing method.

This Fresnel lens has a lens member 20 molded in a Fresnel lens shape and a transparent plate 30 bonded to the smooth face of the lens member 20. The method for manufacturing the Fresnel lens comprises a Fresnel lens member manufacturing process for manufacturing the lens member 20 molded in a Fresnel lens shape and a bonding process for bonding the transparent plate 30 to the smooth face of the lens member 20 made in the lens member manufacturing process. In this case, the bonding process is to bond the smooth face of the lens member 20 to one of the faces of the transparent plate 30 and make the bonded lens member 20 and the transparent plate 30 pass, in such a way that the lens member 20 and the transparent plate 30 come into contact with the elastic belt 53 and a metallic belt 64 respectively, between the elastic belt 53 and the metallic belt 64 arranged opposite to the elastic belt 53 and further, pressurize these members.


Inventors:
NAKAYAMA MASAHIKO
OOKANEMASA YASUKI
Application Number:
JP1999000208554
Publication Date:
February 06, 2001
Filing Date:
July 23, 1999
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
International Classes:
B29C33/42; B29D11/00; (IPC1-7): B29D11/00; B29C33/42
Attorney, Agent or Firm:
工藤 実 (外1名)