746346

Librorum

Propofitionum.

trlllll

;

babet imaginem qt1011d fir11111 everfam

rejpelltt omli 111ag15 dijl.mtt< a Jpec11/o

q11am

imago

eodem diflet.

635

4'8·

Objcfl11m tora/e magi< remotullt

centro fpec11fr,

qu~m

p1mflm11faci, b11bet imagmem fe 111111ore111.

ibid.

49.

objeflomm imagines per reflexio11e111 ad fpec11-

/11111

concav11111

m c!J.lrtá

dijli11c1ijfime dcpmgm1-

t11r, in loco pr..c1p11e obfcuro.

ibici.

50.

D11obru fPec11lu concavu, objeflorum imagi11es

gere.

636

5i.

1111.1gi11es objec1omm i11 cubic11/o claefo, i11verfo firtt

cxh1b1tM fpec11lo concavo erigere.

ibid.

5z.

Presbyra 11ti 11011 potejl fpec11/o co11cavo, 11ifi ad di-

jling11e11dt1 objec111, qu.. jimr circa foc11111.

637

53.

Spew/11111 co11c111•11111

fplu.r.t. 111111Ú111fl ftgment11111,

res parv,u amplrjicat,ft11 111icrofcopi11111

cft.

ibid.

54.

Telefcop1u111 ex d11obtrs JPeculH co1w1vrs co111po11ere,

q110 objec111111 i11verji1m videbit11r.

ibid.

'f'í·

om/11J i11ter focum

fpecul11m conc11v1m1 pojitm,

objella re111ot11 videt erec1o fir11.

638

56.

Teleftopi11111 ex fpeculis co11&avo

convexo co111po-

11ere,i11 q110 objefla vide11ntur ereflo jit11.

ibid.

concavis cylindricis,

conicis.

ibitl.

~7.

Oculo exiflente i11 jitperficie, a11t itura fi1perficiem

fpec11/i cyli11drtci

aut co11ici,

quoltbet p1111flo

fpec11li potejl fieri 11liq1111 rejlexio.

639

58.

Owlo exijlcme exna fpec111ti111 conc,n111m ryli11dri"

"'"".

potefl

ficn

rcjb:w ad 1U11111

Rlt1fi¡ua111 dl–

m1d1.i parre jitperfictti.

ibld.

59.

/mea pt1rallela 11.n

.'.

jic

conrn

11111

[eéfio plani

njlex1onu

fi1perfiaci co11c.rv4. ']l•!•drr., a//t coiii

,,¡,

11no pmic1o ob1efü

1111icm c.mtum radius re–

fiexm ad _oc11l11111 pervc111er.

6 3

60.

commwm fel/10 plam rejlex1onu,

ji1perfinei

co1JiClfl

·,

a11t cylindriclfl concav.t.fir c1rc11/m, aut

ali.1 figura c11rva,

eodcm ob1ello

oc11lt11n

piures radit rcjlcxi pervemrc poJ!imr.

61.

Si fpeculum cylmdric11111 co1icav11111 tra foli oppo11a–

t11r, lit raditl5 jólaru jit 11d axem relltt.s, omnet

'adii colligenwr

i11

linea axi paralleltr,

eii

difl11nre q11ttrta parte diametri.

ibid,

6i. .

Si comt.s ita foli oppo11ar11r, ut radit15 falaris cuni

axe coincidat,011111es radii fo/ares

i11

axe 11111e11t11r,

ibid.

63. Si objell11111 fir i11 axe ryl111dri

videbitttr ab oculo

in altiori loco pofito

i¡¡ alto p1111llo ejufilem axi<.

ibid.

64. De rejlexionib11s

i11

corporrb11s fc.1br1i·

64t

65. L1111are corptu pohtum

11011

ejl,fed fc.1bm111.

ibid.

66. A11 in rejlexíonib11s corporum 1101J levi11111 proportio

decreftmtis luminis fir

111

tl11pltet1ra ra11one di-–

flantt,zrnm lwmnofi,

vero

corpori.s

rejleflemis.

64-z..

~~=~W.m~~~-~~~~~~~~~

T R A

TA Tus .X XI

O ,P T R 1 C

A _,

SEU

RADIO

REFRACTO.

1!11ml!lll@@@li:11.m:lli:11%

·lli:lmmlli.l:

!1·!lllml'.l11lli:INIOOIJ1:1

O P T R

C A.

L I BER

De refraéhone

fpecillis feparatis.

D1GREss10

DE ca11f1J p/Jyficis refr.1c1ioniI.

644

PRov.

fll

omni refral/.ione f.18.t m iifilem

medtts

eadem

efl

r.uio jinfis

anguh

inclm.1tto1ús

11d fi1111m ang111i refr11Bi.

In owm refrac11one faéla in irfilem mediis t.rdem

cfl

ratio finuJ a11g11fi inclinarionis ad fi1111111 ang11li

refrafli,feGunt/1/m dollri11111n Cartefii.

ibid.

Pri11111 merhodrt> organica obfer111md.t. proportionis

JinuJ ang11fi inclinationis ad fin11111 11ng11lt re–

fralli.

653

Seet111dt1 merhodr1J org.rni.a obftrand.t. proportio11is

qu.. efl mter fi111111i 11vguli inclinatioms

ft1111111

ang11li refraélt.

ibid.

Ter

tí"

111erbod1t.s org11nica ohfervand.. proportionis,

'l""'

mtercedit inter fin11111 anguli mc/inarionis

fin11m ang11lí refralli.

654

Exa1¡1m tab11f.t

a11 nempe ohf ervetttr eadem ftm-

per proportiiJ imer fi1111111 anguli i11c!inatioms,

fi1111m ang11/i refralli.

ibid.

Refraétiones ab nrre ifl virr11m 111etiri.

655

Refraé/10

fir

reciproce per

eojil.em

r11dios.

657

9· N11l!tt.s

eJI

ang11luJ í11clmationis in raro, cui aliq11is

11011 refpon.deat angul1u ri¡raflm zn de11/o,c11t 111tl–

l11s compem angulm refrnllus in raro.

íbid.

10.

Refrt1Etio 11ec vivida

ejl,

nec ordi11ata nifi 11tri 11fi¡ue

diaplwú ji1perficies f11erit palita.

ibid,

n .

DllO radii

i11

ídem fectmdt diap/Ja11ip1mflu111

tnW

deutes, refr.itl1

imerfeca11r.

R11di1para/Mi11xi /pb.trd- denfioris,

ejm

ji1-

pcrficie111 incidentes, ctlm t1Xe ultra ceutrum to11-

cummt.

ibid,

14.

lt••

es? jimu a11g11li refrallionis ad finum ang11li

inclmarionis

11tjemrdiamerer fPh.t.rici denfi ad

udi11m refr11ll11m.

659

1;.

egrej/it

vitro in ai!"rem, a11gulm refrallio11is efl

ftnujfis a11g11li ínc/i1i.ttioniJ.

ibld,

16. In femilente pla110-co11vexa, plano ad luminojimt

ohverfo radii 11xi pt1ralleli, ctlm eo In extremirare

diametri co11curr1111t.

660

17.

Convexitate ftmilentis atl jólem obvers!t radti axi

part1/leli ctlm eo 1mi11nt11r ad diflant1a111 dta111e-

11·i.

ibid.

18.

Leme plano-co11vex!t ignem pojfibile

cft

geneM'I,

661.

19.

Si 111cid11m in p1111flo foci col/ocet11r, radii

Jin!i~

leme refri11genwr paralle/i.

1b1~.

2-0.

/11cid11111 mimt.s diflet

femilenre plano convexa,

q1w11 ejm diametro, radti in

mcidm~u

per refra•

c1ionem divergent

1111/s t11111e11q1w11 lente.

Ji.1-

attr.

1b1d.

21.

L11cidi 1tltrt1fact1m in axe pojiri rad1i,c11111 axe con·

C//TTUllt.

66-z.

spb..ra vítrea radioJ folt1m.ax1 para/lelos 1111'.t

diflantit1m

'!"ª'!"

par

ru d1am

em..

.1b1d.

z3.

sphdXa virre11

objell~

remo.ta

exh1bet

di.flan~

tiam q11ar1.r, parttJ d1a111etrt.

66~

24.

uns

11rritu¡11e .tq11al1ter convexa , 11ntt r11d1or tfxl

iij

parallelof)