Title:
SPECTACLE LENS
Document Type and Number:
Japanese Patent JP2006267163
Kind Code:
A
Abstract:
To provide a spectacle lens which can accurately be positioned and incorporated in a spectacle frame having a large camber angle even when the spectacle frame has directivity.
The spectacle lens to be incorporated in the spectacle frame having a camber angle of ≥200° is characterized in that on an object-side refracting surface, a mark indicating a reference processing point and a direction of lens processing for incorporation into the spectacle frame is provided so that the reference processing point (d) is at a position displaced toward the nose from an external surface center point (c) corresponding to an eye point (a) of the eyeball-side refracting surface.
Inventors:
KAMISHITA KAORU
SHINOHARA SHUNEI
SHINOHARA SHUNEI
Application Number:
JP2005081194A
Publication Date:
October 05, 2006
Filing Date:
March 22, 2005
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
G02C7/02
Domestic Patent References:
| JP2001510905A | 2001-08-07 | |||
| JPH06123854A | 1994-05-06 | |||
| JP2004045873A | 2004-02-12 | |||
| JP2002311396A | 2002-10-23 | |||
| JP2003131176A | 2003-05-08 |
Attorney, Agent or Firm:
Masahiko Ueyanagi
Fujitsuna Hideyoshi
Osamu Suzawa
Fujitsuna Hideyoshi
Osamu Suzawa