per idem coroll, 4» prop. 18. Sync. prasc. igicur ad hoc^um. ut oculus diftindc viderc poflit objcdum longinquum in fitu cverfo,debecoculus applicatus efTc ultra duplam diftantiam fiii foci iive bafis diflinto-nis, & ultra focum Lcncis convcx». ^ Propo- Syntagma II Cafut IV,Propofitio XIX.… … L- Tr\ Emonllratio Nam qiio magis oculus remo-•*-^vebitur a loco I ( qui fit ex. gr. primus iitus,in quo oculus vidct diftin^te objedum C D cver-fum) e^ concurfus determinantium radiorum abextremitatibus E 6^ F imaginis ulteriori loco veJutM efficitur, adeoque per xi. primi Euclid. confti-tuetur…
Optics, Geometrical · Optical instruments
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