Libromm
&
PropoGrionum:
rwrem,
&
partimn dij}ojitio11em..., dum rejle:r:'i:
jpec1,u11r
,
ac ji
dir;fl~JPec1.,~ett1r
ex p1111floca–
r/Jett
refle.~io11il
.tque dijla11te
a
j}ec11/o ac oc11/11s,
111
ji quo1I dextra
m
ordmt ad refp1c1ente111 Jint
jimjlra.
.
580
i6.
objeí11tm
eodem 11lodo
radi.rtrejlexl:
,
quo direfle
radittret
,
ji.
1111rtartt locum
cum
Ji1.1 1111agme.
ibid.
.
1
7,
si j}wdi
pl~11i
i11di11ttt10 variet11r uno gradu, r.z–
di11.s reflex11.s, ej11fde111 & i111mot1 radtl mcidentts,
d11ob11S gradibm 11111tab1t11r.
581
18.
Moto in orbe;11 jpernlo, apparenter 11101>ef/1Y ob1e–
c?tm1 i11 orbem, 11/uifi¡uc moms
duple.~
ejl
1110-
Nt! JPeculi.
58i.
19.
Fieri potefl 11t aliquiJ jéipfi1111 11011 videat inJPeculo,
ftd ea q11.tfaris ger1111tm·.
ibid.
¡¡o.
~oties
objefl11111 per piures rejlexio11u videtur, ejus
dif/1111tia ab oculo ...qualts
eJl
ommbl/S radtis i11ri–
denti.t,
&
rejlexio11is fimttl jim1ptis.
ibid,
u.
Specttla ita dtj}o11ere
,
llt imago jitblimis
&
vola11s
•
videat11r.
583
u.
U110 j}emlo 11111/tiplicari potefl obje{/11111.
ibid.
2+
111 j}eculi; vitreis fo/is radiusd11plzcat11r.
. .
584
z4.
In j}ernloJraflo objeé/11111 aliq11ando m11lt1plicatur,
aliq11a1ido
ver~
11011.
585
25.
In
JPeculrs pla11is jéc1111d11111 co11vexitate111 dij}ofitis
r.ej}efl11 oc11/t
,
11011 v1det11r objer111111
nifi
femel,
ibid.
26.
J¡¡ j}ec11lis pl1t11ú fecr111d1)111
co11cavitate11~
dij}ofitis,
re.JPeEtu oc11/i
,
potejl 11utlflpftear1 ob1efl11111 pro
1111111ero j}ec11/oru111.
.
.
58
6
z,7,
In
eodem plano j}emlo, potefl 1dem
ob1eif1111V1'.td~1·1
pluriu.
.
.
.
1b1d,
z8.
Duobus ¡pemliJ
,
ob1efl11m q11111q111es
,
11t fexzes
111tJlupbcau.
ibid.
z9.
Dt1abu1 JPec11/zs objefl11111
i11fi1tities 1111dtiplicare.
581
-3º·
111
refie:r:ionib11s pla11omm fpemloT1/m 1111111ero
i)11-
parib11s dextra appam1t jinif/ra,
&
in numero
partbus dextra apparent dextra.
588
31.
Spec11/,1ita dtj}o11erc
,
: 11t iis motis ej11fdem objcEli
imago 11111 accedat
,
alia recedat.
589
32.
Vari"' defom111t101(es.
ibid.
33.
Objec?orumJjeczes per foramen emiffes in c11bic1d11111
cl1111fi1m jpemlo plano erigere.
590
e
A T
o
p .
T R I
e
.tE
LIBER
II.
De fpeculis convexis.
PrtoP. l .
LJnea d11fl11
.:1
centro jpec11/i per p1mfl11m
rejlexionis dividir bifiiriam a11g11llim
có111prehe11ji1111
a
radiis i11cide11ti<1.
&
rejlexio11is.
593
•
z.
Solrt4 cathettt! incidenti.t in /eipfum rejleélit11t,
594
3.
JlrmE/11111 rejlexio11il in JPecrtlis fpbd.rtcis
,
efi
i11tir
cathetos mC1de11t1.t,
&
rejlc:r:ionis.
ibid. ·
4·
Radi11s rejlexus t11 conve:r:is fph<1.ricis c11111 catbeto
i~cidmti.t
co11currit, & viciffim raditrs incide1i-
11..
c11111 catlmo rejlexio11is.
ibid.
5".
Radius
~11c~de11ti.t
c11m car/Jeto
rejle.~ionis,&
raditls
refiex10111s cum catheto i1nide11ti« co11curT1111t
m–
f':
t
a11~e11rem
d11é111111 per p1111ll11111 rejlexionis,
6
ji1pra cenrrum.
'59'')
6•
A.b
e~dem
objel!i Nmélo ad eundem oc11!11111
,
ab
muco t1111111m.1Jec11/i.fph<1.rici co11ve.<i p1mllo fie-
11
~~~.'f~·\~·
ibiél.
7. R.1d11
rejfe.~1 i~
fPet:rr/11
Cb11ve.~is
11/1tgis dif}erguil::
tur
,
qw1111
111
fPrculrs
plams.
ibid.
8.
Spewlo Jplh!.mo convexo difeél11111 m;optms corr¡;.
gere.
6
9.
Speculum convexmn mmorts
¡p!,,,:u.
ftgmentt~~
,
11z.tgts d
zfpergu Tddrosrejlexos
,
quam /Pmdum
q11od e(t
111a1oruJPh.tr"- jégmtnttim.
591
10.
~ofpecri/1~11
com,ex1m1 propuls ocu/3 admo"<b1tur,
eo tard11u rad11 ad 1dem ob1eflu111 pertmemes
pojl cryflaU1111m111111e11t11r.
ibid
11.
St objeif11m
&
oc11lus «qt1a/irer
a
fpecu/o dtjlenr•
prmf/11111 rejfexwr111 .tqu11liter difl11t ub 11traqu;
c.1tbeto:
ibid.
11••
Eadem
ejl
ratio totirfs Catheti incide11tid. ad lmeam
i11tercepta111
,
111rer ce1m·um fpcc11/1
&
co11rnrji11n
r11dii rejlex10111S' qt1<1. ef/ diflami.t. objefli
a
tan~
gente ad 1111e11m mrercepram ínter ra11gentem
&
co11c11rfi1111 radti 1'Jlfiexio11is
,
mm c:rthe10
i11~
cide11t1.t.
598
r3.
Locus 1m11gi1Ti1 i11fpec11/isfpb«ricis co11vexis.
ibid,
14.
.M.gor
ejl
dzjl1mtza rmaginis
d
centro, q11a111
a
p1111-
flo rejle:r:1onu.
6oi
r5.
Majo~
eJl
dijl~nria
objeifi ad fPern/11111 co11vex1111z,
quam
mlágmu arl rdem fPecu/11111.
ibid.
16.
Dif/a11t1tt i111agi11is
.t
centro m1gor efl dimidia parte
ftmidi11111em.
ibicl
17.
P11vc?i re111011oru
.t
jpec11/o
m
eodem catheto
111
¡;
1
~
de11ti~
affi.m:pri,
Úllt~o
vicmior efl centro,
quam~
ptmfü 1111111u
re111011.
ibid.
18.
Loms imaginis aliq11a11do intra ffieczt/11111, aliq11an–
do
i11
ji1pcrfic1e fpecul1,
&
al1q11ando extra fpec11-
l11m app11ret.
6o:z;
19.
In fpeculis convexis, imagines o/;je(Jorum. ipfis objefl1s
·
1m11om appttre11t.
ibid.
20.
I11 mi11orifpemlo convexo
,
i111agi11es appare11t mi-
nores, q11am i11111ajori,
603
21,
Oculo 1111111oro,jiobjeélum adfpec11l1111111ccedat,111a-
jor iUim appareb11 ,imago.
604
u .
Oculo
,ªd
jpeculr~m co11ve~11111
11ccede11re imagines
mmus dijlant a ji1perjiC1e fpewlz,
&
majores
"{l–
pttrent.
ibid.
23.
In fpemlrs conre:r:iJ dextra apparwtJi11ijlra.
ibid.
:i.4.
Objefla .tqu,rlrter
.:1
centro jpecrtli, & ab octtlo di–
fla11tiá, habent m1agmes
~
.iqttalirer
.:1
centro di-
jla11res.
1
605
25.
Objefl~T111n
.equalirer .
.:1
fpeculo co11vexo
,
imago
vwmorzs oc11lo, vzc1111or
ejl
centro fpecult.
ibid.
:t6.
Circ11lm [pernio co11ce11rrtc11s tta j}ec1atm
,
11t lineit
duc1a ab oc11/o ad ce11tru111 j}eculi jit ad illius
plam1111 re[ft1
,
apparet 11t circ11lus etiam con–
centriws.
ibid•
•2'7.
Line.t per cenm1111 circ11/i rranfe11111ú imago efl li.-
11ea refla.
606
28.
Circul11.sfpec11/o co11centric11s
it11 fpeflatus, 111 linea
~b
omlo ad ej11s ce11tr11111 duifa
,
oblzque i11cidat
m
l!)Us
pla1111111
,
cirmlarem habet 1magi11m1, fed
e:r:centrrcam.
ibid.
29.
Circ11/11s m crgr" plano ctntmm fpeculi
ejl
mima
convexus
,
quirm circ11l11s
co11m1tric111,
/Jabe~
/maginem convexam.
ibid.
36.
Oi1111i1 line.._ fpem/11111 11onfacantís imago
eJl
conve-
xa.
ibid,
31.
Omnis tirc11/z11 c11j11s co11vexitt11 ¡pmrlum refpicit
,
1111.1gi11e111 habet tonve:r:am.
607
32.
Jinago czrculi
111
wjm plano centrttm jpeculi conve.-
x111011 exijlit
~11rvi/111ea
ejl.
ibid:
.33.
Li11e.i fpccu/11111
ftc.msal1q111111do lit pu11c111111,
ali~
q11a11do
111
rcfl.r fi11M, pe[ ltt tdlltif}er
a
re{/,,
dcjleflem appartt.
lb
id,
34
.ldem objeé/11111
per 11111/tiplicem rejlexionem i11
j}ec11l11 co11ve.o:r< fac1am videri potejl,
ibici:
í
ij
Dé
/