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1. (WO2018220737) SPECTACLE LENS, DEVICE FOR MANUFACTURING SPECTACLE LENS, DESIGN METHOD, AND DESIGN PROGRAM

Pub. No.:    WO/2018/220737    International Application No.:    PCT/JP2017/020215
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu Jun 01 01:59:59 CEST 2017
IPC: G02C 7/06
Applicants: HOYA LENS THAILAND LTD.
ホヤ レンズ タイランド リミテッド
QI, Hua
祁 華
Inventors: QI, Hua
祁 華
Title: SPECTACLE LENS, DEVICE FOR MANUFACTURING SPECTACLE LENS, DESIGN METHOD, AND DESIGN PROGRAM
Abstract:
Each of a pair of left and right eyeglass lenses is provided with a far sight range and near sight range, and a progressive range in which the refractive power progressively changes between the far sight range and the near sight range. In the pair of left and right eyeglass lenses mounted in an eyeglass frame, the height position of a far eye point as a reference point of the far sight range differs between the left and right eyeglass lenses, and the length of a progressive zone linking the far sight region and the near sight region differs between the left and right eyeglass lenses.