Title:
HOLE DRILLING JIG FOR SPECTACLE LENS AND PRODUCTION JIG THEREFOR AND HOLE DRILLING METHOD FOR SPECTACLE LENS AND SPECTACLE LENS
Document Type and Number:
WIPO Patent Application WO/1999/037449
Kind Code:
A1
Abstract:
A hole drilling jig for a spectacle lens used when a non-through hole extending toward the inside of the lens is drilled in the edge face of a spectacle lens and a production jig therefor and hole drilling method for a spectacle lens and a spectacle lens. The hole drilling jig comprises a jig body and a plurality of support members attached to the jig body, wherein a spectacle lens is inserted into the opening of the jig body to be held there by clamping and is supported by the support members. A bit of a drilling machine on which the hole drilling jig is set is applied to the edge face of the spectacle glass while being guided by a guide formed on the support members, whereby a non-through hole is made in the edge face.
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Inventors:
Watanabe, Shigeru (112-6, Hikita Akiruno-shi Tokyo, 197-0834, JP)
Application Number:
PCT/JP1999/000271
Publication Date:
July 29, 1999
Filing Date:
January 25, 1999
Export Citation:
Assignee:
HOYA CORPORATION (7-5 Nakaochiai 2-chome Shinjuku-ku Tokyo, 161-0032, JP)
Watanabe, Shigeru (112-6, Hikita Akiruno-shi Tokyo, 197-0834, JP)
Watanabe, Shigeru (112-6, Hikita Akiruno-shi Tokyo, 197-0834, JP)
International Classes:
B23B47/28; B28D1/14; G02C1/02; G02C13/00; (IPC1-7): B26F1/16; G02C1/02; G02C13/02
Attorney, Agent or Firm:
Ando, Takeshi (Room 908, 25 Sankyo Building 48-10, Higashi-ikebukuro 1-chome Toshima-ku Tokyo, 170-0013, JP)
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