アコモドメーターの改良とその応用

A new accommodometer and its application

Ⅰ．はじめに

　私らはかねて，調節時間を手がかりにして人眼の調節機能を研究するために，アコモドメーターを製作し，種々な測定方法によつて調節の現象を解析してきた。

　今回，従来のアコモドメーターの欠点を除去し機能を追加したⅡ型アコモドメーターを完成したのでここに報告し，あわせてそれを応用した実験の成績を報告する。

1) A new type of accommodometer (model Ⅱ) is devised in which three features are added to those of the previous accommodome-ter (model Ⅰ).

i) Diopters are variable in terms of chan-ges in the distance between the target and the eye without exchanging lenses, providing continuous shifting of diopter and no change of image size of the target.

ii) Three targets and three optical path-ways, instead of two, are used so that more examinations may be available.

iii) The new target has its Landolt' ring surrounded with radiating lines so that asti-gmatism may be detected.