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1. (WO2018079422) METHOD FOR ADJUSTING MAGNIFYING GLASS AND MAGNIFYING GLASS

Pub. No.:    WO/2018/079422    International Application No.:    PCT/JP2017/037925
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Sat Oct 21 01:59:59 CEST 2017
IPC: G02B 25/00
G02B 7/02
G02B 7/06
Applicants: KONICA MINOLTA, INC.
コニカミノルタ株式会社
Inventors: ISHIMODA, Isao
石母田 勲
Title: METHOD FOR ADJUSTING MAGNIFYING GLASS AND MAGNIFYING GLASS
Abstract:
Provided are a method for adjusting a magnifying glass, wherein changes to visibility can be suppressed during magnification changes by adjusting a variable magnification magnifying glass that is small and lightweight and user burden can be reduced, and a magnifying glass. In the method for adjusting a magnifying glass, at least one lens in a first optical system is displaced in the direction of the optical axis such that a focal distance for an object when a lens for changing magnification is displaced to a first magnification changing position and a focal distance for the object when the lens for changing magnification is displaced to a second magnification changing position are substantially the same, and thereafter, at least one lens in a second optical system is displaced in the direction of the optical axis so as to form a desired focal distance for the object at a desired visibility when the lens for changing magnification is displaced to the first magnification changing position or the second magnification changing position.