Oculus artificialis teledioptricus, sive, Telescopium : ex abditis rerum naturalium & artificialium principiis protractum novâ methodo, eâque solidâ explicatum ac comprimis è triplici fundamento physico seu naturali, mathematico dioptrico et mechanico, seu practico stabilitum ... . us fiint indicata, & plurima adhuc fagax Ledor infrareperiet. 18. Specillum nimis cavum , fttrc cujus cavitatis diameter cfl nimis spedlli ni»parva m tubis communibus coilocatum , licet valde augeat objedlum; cx- mium cav^teris paribustamen ica diftrahicpenicillorum radios, utpauciffimi Retinamingredi poflint. U
Oculus artificialis teledioptricus, sive, Telescopium : ex abditis rerum naturalium & artificialium principiis protractum novâ methodo, eâque solidâ explicatum ac comprimis è triplici fundamento physico seu naturali, mathematico dioptrico et mechanico, seu practico stabilitum ... . us fiint indicata, & plurima adhuc fagax Ledor infrareperiet. 18. Specillum nimis cavum , fttrc cujus cavitatis diameter cfl nimis spedlli ni»parva m tubis communibus coilocatum , licet valde augeat objedlum; cx- mium cav^teris paribustamen ica diftrahicpenicillorum radios, utpauciffimi Retinamingredi poflint. Unde ratio aliqua patec, cur Lentes nimis cav^ in debilius & obfcurius objeda pr^fentent, 19. Ad cujufcunquc Lentis cav^ fph^ricitatem facile dignofcen-dam, Dc Chales Diopt. hb. 2. prop. 54. has praxes pr^fcribit. Obverte comavimem ejuf adohjeBum, ^ recede , donec apparcitt omni. „moMconfrfio : dtft^ntia oculikfpectllo erit qmrta fars diametri concaviutis, ,VcL obje^remon & vaUe conjpicui imagmem fer reflextonem formatam in,ifharta difttnaam exhtbe , chart^ dtftantta a Lente erit quarta pars diametriconcavttatis. Ventque recede afpectllo concnvo , donec feipfum oculu^ difitnm ^tdeat, ertt tunc tn centro concavttatis, Verum alia praxis infra dabitur. <% sm- «i li,l 11& m I Funiamentum IhMathmatico. Dioptricum^* SYNTAGMA IL
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Keywords: ., bookcentury1600, bookdecade1680, bookidgric00033125, bookyear1685
