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# Title: Optica Promota, Seu Abdita radiorum reflexorum & refractorum Mysteria, Geometrice Enucleata (shelfmark Leibn. Marg. 94)
# Folio 78, page id 727094130:0090
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=727094130&page=90
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 44 lines, status machine
# Lines: 44 recognised, mean confidence 0.87
# 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.
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# After the first blank line: the recognised lines in reading order, one per line.

18, 29, 4b
uIuS.
A V B, Cuxponicur planum; apices conorum radiolorum, omni-
um, illius punctorum, exictune in plano HLII, ue e scholio ad
Prop. 43. hujus Pacis pater. Sine igitur apices, conorum radiolo
rum, punctorum A, B. puncta HE, N; ee crune puncta M, I, N, in
una linea rectu; quoniam A, V B, Cune in unarecta: radii enim
AD, BD, Cunc in eodem plano, cum axc: e ideo, tuperticies il-
lorum, sve reflectionis, Cive retractionis, una elt, e eadem: re-
Aectuneur igitur, vel retringuntur, in uno planocum axc, quod
planum, secar planum imaxinis, in recta M IN: de ob aequalica-
cem angulorum, A D V, ID N; criangula ADV, ID N, CunE
similia: FEVE
eodem modo;uE
ErGO, UE
CTAE aULCML, VE
DV: DI:: AV: INo
DV: DI:: VB: IM;
DV: DI:: AB: MH;
DV: DI:: A B: R, ioITUER, d
MLN, Tunc aequales. Imagines aurem punctorum A, B, apparent in
apicibus, conorum luorum radiolorum, hoc est inM, _cN, diltantibus,
recta R: Quod Faciendum erat.
Focem etiam modo, possune imagines visibilium, intinice di-
ctancium, in daca mentura represencari, 8. e. Sic engulus A DB,
angulus risocius, alicujus visibilis, intinire dictancis, quem subren-
dac recta AB, Fracq; uc A B, ad K; ica perpendicularis in subcen-
denrem, DV, ad DI, Se radii, paralleliipli D V, divergancur e
puncto L, lence vel speculo cujus vertices D, D, eodem modo, ut
hactenus dictum.
Scholium
cbta bescta
Si aurem recta A B Fueric adEO PArVAS UE nOD
ec ipsum vilibile, rurtus projcacur, in aliam imaginem, aqualem
ipliR. Ouod hachue heri non pollie, seiteranda erir operacio
ocandum camen. E recta R, hirnimis lonea respectu porricaris
enris, vel speculis imaginem MH. Fururam, contulam, ec indi-
Rinctum, versus enrromirares  de HIs in medio vero l, circuer
axem, lenris vel speculi pduetum. Cemper eric diltinctisim
quoniam imugo puncti b S D, projicitur in I, adrierem Be
d
de projici, in rectam, aequalem ipli R. projiciarur iptius N Bima.
00 inrectam, minorem ipta li, sux imago, eodem modo, al l
Omecrieum