# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/727094130:0017
# Permalink to this reading: https://leibnizlegible.com/page/727094130:0017?run=74
# Title: Optica Promota, Seu Abdita radiorum reflexorum & refractorum Mysteria, Geometrice Enucleata (shelfmark Leibn. Marg. 94)
# Folio 5, page id 727094130:0017
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=727094130&page=17
# Source image: https://digitale-sammlungen.gwlb.de/content/727094130/jpgs/default/00000017.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 27 lines, status machine
# Lines: 27 recognised, mean confidence 0.80
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line: the recognised lines in reading order, one per line.

sa
3
d
ns es es d
Od.
cOpOlitIO
Proposiium sii inquirere, quanam sit supersicies
quaemetitur refractiones:
e
Mnibus in Macheli vel levicer versatis, vi l90
nocum est, radios luminosos per diaphanu. n
rarius cranfeunres, ex in aliud diaphanum
densius oblique incidences, refringi in supor-
ficie secundi diaphani, e 2d perpendiculares
vergere ab incidenciae punctis excitacas; e
e concrario radios per diaphanu. densius
cranseunces, e in aliud diaphanum renuius
obliq; incidences, retringi in superticie secundi disph ni, ec a prae.
dictis perpendicularibus divergere. Cujus retrectionis crulas e ele-
menca non noltrum elthic explicare, abunde enim de his disputr-
Tune Alhazenus, Vitcellio, Keplerns, es mulsi alii: Mnoniam ve: e
qua de carum mensur a ab auchoribusproferuneur minus solida vi-
centur, paucula quaedam de hac re (Michemacicis Fortan non inuri-
lia) in medium adducere conabimur. De his aucem quae alcioris
sunc consideracionis, licene paululum analogi e dispurare, prius-
quamm ad crp. Bcsav SCOmetricaM ACCCd aMIS.
8aL133