Title:
PRESCRIPTION SEAL LENS
Document Type and Number:
Japanese Patent JP2005249842
Kind Code:
A
Abstract:
To eliminate the problem that spectacle lenses can not be worn after being purchased since a wearing feeling of original progressive refracting-power lenses can not be sufficiently experienced because of thickness effect of eye examination lenses with progressive refracting power used for the test of wearing etc.
A sheet type lens of ≤1 mm in thickness is formed of an irreversibly deformable material such as polyethylene or polycarbonate. This lens is stuck on an eye examination lens to enable refracting power adjustment without awareness of thickness effect.
Inventors:
KATO KAZUHISA
Application Number:
JP2004056185A
Publication Date:
September 15, 2005
Filing Date:
March 01, 2004
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
G02C7/08; G02B1/04; (IPC1-7): G02C7/08; G02B1/04
Attorney, Agent or Firm:
Masahiko Ueyanagi
Fujitsuna Hideyoshi
Osamu Suzawa
Fujitsuna Hideyoshi
Osamu Suzawa