V. Pcrpendicularis refraclionisdicicur linea perpendiculariter erecta fupcrpunctum incidenrias, ut eft HBI. ^ VI. Angulus incidenrix conftituitur ex linea incidentiz & perpcndicula-nrefracl:ionis,uteft ABH. r VII. Angulus rcfra.ftus conftituitur ex linea re£ra&ionis &:… … IX. Curva» fuperficies corporum pellucidorum radios per fingula pun&atranfeuntescodemmodo refringunc&decorquenr,quo plansein iisdem punclisil-las concihgences detorquerent. Sie radius A B incidcns in MBNad pun&umB eodem modo confiderari debet* acfi AB incideret in fuperficiem…
Optics, Geometrical · Optical instruments
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