# Leibniz Legible — https://leibnizlegible.com # Page: https://leibnizlegible.com/page/1677894601:0072 # Permalink to this reading: https://leibnizlegible.com/page/1677894601:0072?run=74 # Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193) # Folio 62, page id 1677894601:0072 # Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=72 # Source image: https://digitale-sammlungen.gwlb.de/content/1677894601/jpgs/default/00000072.jpg # Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 33 lines, status machine # Lines: 33 recognised, mean confidence 0.91 # 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. poine trom whence che Rays Ro is co che distance be- erreen thac lucid poine and che Lens verr nearty. Non co examine whecher che difference berrmeen theRe- Fractions irhich che most retrangible and che least retran- sible Rays Aoming trom che lame poine sufter in the Ob- ject. Clasles oF Telelcopes and such like Clases, DC (O OPCAE a5 is here described, I contrired che Folloins Experi- ment. Exper. 16. The Lens which I uled in che second and eiehcha Tixpcrimenes, being placed Ex Feet and an Tuch dil- eant Crom any Object, collected che Species ot chat Object by che mean retransible Rays ac che distance Ot (IX Fece and an Juch From che Lens on che other Cde. And CherC- Foreby che Foregoing Rule ic oughero collect the Speciesot chat Object by che lcast retransible Rays ac the distance ot SIX Fcer and z 2 Inchestrom the Lens, and by che most re- Frangible ones ac che distance of fire Fcet and 10: Inches Erom ic: S0 chac becween the eno Places where these least and most retransible Rays collect che species, there may De che distance ot about 5: Inches. For by thac Rule, 25 Sx Feec and an Inch (che distance of che Lens Erom the lucid Objece) is eo evelre Fece and ewo Tnches (che di- Rance of che lucid Objece From che Focus of che mean re- Frangible RaY5) chac is, as one is eo cro, (0 is the 273th parc oF six Feec and an Inch (che distance becween che L ens and che Came Focus) to the distance betmeen the Focus ot che most retransible Rays and che Foeus ot che least re transible ones, irtich is theretore s = Inches, thac is very nearly s: Tnches. Non to Hnom irhecher ehis mealure ras erue, P repeated che second and cioheh Experiment ot chisBook wich coloured Lighe, irtrich nas less compound- ed ehan chac I chere made ile OF: FOr L no separared che HCTCTO.