Ioan. Baptistae Portae neap. De refractione optices parte, libri nouem (1593)
Porta, Giambattista della, approximately 1535-1615 · Neapoli : Ex officina Horatij Saluiani : Apud Io. Iacobum Carlinum, & Antonium Pacem · leaf 138
dimetiens fphf r£ f qua interuallo oculorum fuerit 3 ipfiusq; hemifphxriura fpedabit . Spharrf dimetiens B C, centrum D, & fupra tria punda B D C oriantur tres perpendicu!ares,diriganturq; in redum, quarum terminis defignetur linea F K L»ipfo dimetienti aeque remota , loceturq; alter oculus in F,… … A t fi oculorum' interuallum illud (phasrg fuperabit, plus hemif- phaerio
Optics
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-100-221.webp)
