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Title:
METHOD OF MAKING POLARIZED LIGHT SEPARATING ELEMENT, BONDING DEVICE, AND OPTICAL PICKUP DEVICE
Document Type and Number:
Japanese Patent JP2003322720
Kind Code:
A
Abstract:

To provide a method of making a polarized light separating element to suppress protruding of an organic birefringent film from a transparent substrate and mispositioning thereof in bonding the organic birefringent film to the transparent substrate.

In the bonding process comprising applying a UV curing adhesive 3 onto the transparent substrate 1, placing the organic birefringent film 5 varying in a refractive index onto a vibration surface varying in incident light on the UV curing adhesive, rotating the transparent substrate 1 on which the film 5 is placed by first rotation, stopping the rotation of the transparent substrate 1 rotated by the first rotation, gliding the organic birefringent film on the transparent substrate to correct its position, rotating the transparent substrate 1 by second rotation, stopping the rotation of the transparent substrate 1 by the second rotation, and curing the UV curing adhesive 3 by irradiating the adhesive with UV rays; the first rotation and correction are repeated until the film 5 does not approximately move on the transparent substrate 1 by the first rotation and thereafter, the second rotation and curing are performed.


Inventors:
MURAKAMI AKISHIGE
AZUMA YASUHIRO
HIKIJI SHUICHI
MORI KOJI
MORI TETSUJI
SUZUDO TAKESHI
Application Number:
JP2002127926A
Publication Date:
November 14, 2003
Filing Date:
April 30, 2002
Export Citation:
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Assignee:
RICOH KK
International Classes:
G02B5/30; C09J201/00; G02B5/18; G11B7/135; (IPC1-7): G02B5/30; C09J201/00; G02B5/18; G11B7/135
Attorney, Agent or Firm:
Toru Kabayama (1 person outside)