BSTJ 40: 3. May 1961: Design of a High-Resolution Electrostatic Cathode Ray Tube for the Flying Spot Store. (Cooper, H.G.)

15 MB·English

Design of a Tigh-Resolution Electrostatic
Cathode Ray ‘Tube for the
Flying Spot Store
ty 1h 6, COPE

ee front ty oad menus. ty 24 910"
nie pine Aaph nego! bal
ve seouied fy golace

Te pepo he die vive fo op poferance amd
sn Hest frowtag are seaonty na nopioly ocet A
I sao al eh esd ens tet yr
ta

he roslution acale ay tuber (CHIE) with lestmetse dete
jester tm ally lila atively tual deletion angles heeaee of
senting efots tnd ti deci pes The deletion
Aistoesies ene uae of weadasace a hee ges Ee sem and
oro lime che uss wter ster high-res tae

A langecapaes, ble pi, uiporonient warn. * ceed ae
12 fs ape ot, ae eens Lots evel fara vient

lertvaie telephone ee ir
Tee nemony st ea esata ytd CRT. ‘le sale ol I

Drove hv asses Stamey cbosaliey sts tthe am 2
Inv saersat ue opie bls pobipaplie fates, 6 akon in Ug.
Vinee rman stevie le ero sen mee stor of he

(CHET, Iw Insane sa sy the Hee ee

Cover of ogre
PAL rime art emer: mMEIENT ama NAY

‘elt <-

tion plates ty opts! bs, an an ebay apa hand
iver (aber en lit eet ufomaion pts,

Spatem desieyobje| ves iavadesistlly sean orm: Cove
‘hau one cure cing operations) ond arge remy repay
15 3 1 ite Ava eal a presser CAT ith el ntalis dete
tot ie wood whine ice soa chonertristes. Anny there xe 2
srl avi sey iene beam exe wor ara ely Tenge scree aren,
Tales plied waifornc nortan over ide oan
rel rare witan a jstuzen of the how fou wage, There pointe
mal as nore te del he ot

1h ma reine ae The spel ar sn tanny: regvement a: the
Arete econ, sorrn +m, se sted perfmmuce pei
better than tnd boon previncaly tained, Developmen of CTT Ter
the dying spot tons sim terseutenr ly adeaaber at Tl Telephone
Latsratoriee

“The primacy slyer se Uh caine ft poets de ete ea
sign considerations lr inant peforteauce a the ayer. Te
Spurs ovr, on paeracon se ce) Lae
rijertive ken cellent

dud Tinea ea -alevati pres cubes. At apppovihle portion
te paper tevotua fo the set neaatin deletion apeter, else fe
sed oe net clients design pcan an nchudes ¢ ows. faxzure of
the take

ovelasment of lesa ray te was seme em es
“hus tube design objntven were impnts leva ln ay yom
‘omsderatons, These objotves, in corms f desired cube eharsceestic,
Weil be sumac ty thie orion abe serve aw s basis forthe three
Salaun oreionson tbe design, Maelo the vale sted blow have
hrc disused in provkit etices'* on eystern desig, ad ers were
hte in privue iseusins nih systems pens

us Re

Cathe may tbe spt sae anally refers tothe dimeter of the
luonineennt sal on the stron, whieh may’ be denoted as tho optieat
spot sn, Tals maybe Ingger thaw the electron bear ss (or svete
foot in) thew fs ashen seater of abt within the acres
Hlosphve, Rsperinents comet om recon materi sed in he ing
fot stove CRT indeed thas auch setting eval he ae repli
rir sor fhieknoes ene meted af depeston wer asd, ene it
cal be enui ere ta sleeveal an pil spot sos axe the same,
{hd the terms il be etd incense i shi

fi and Spot ite Uniformly

‘A iqantieaties apeiron sf st ise I lage fen jot
azahigy, hese af he alles tgs of he elev i bea. Anon
fee watints meted of doling se sera (2) beni raster reat

tion, ‘by TV Fe powltion, wal cet thie stack devatien @ af ©
Ussden dstisitin.? Lae last me eal ye eee for hie ee,
hive espevinwnts seat hal Ie beer cies asetion Sythe CRT wae
Substontily Churches sperietian of spot ste ete sas
square hy en eealeon a se Lamiseseout goat, wil eontein £0
wrest of tie ofan xh Cus, Fora Gauge spt, cho sie o 628 a

Sane te
lying atm sve lfstives of ange stooge rapaviey ave sentially
‘scores coeration colt CHET rsa in yates of @ = MODES —

hoz ashe This errespord.o1 pal benny 1h enn)
ff £14 Te shovel hr wmphasied! thas the faterasens on por sige set
emit tal ie Pre ually seven ea (ince suse,

find mite fa gered enn re, nage witht lagi Tae po
twatiale, The best spot ne nalonmity shal could be ablained in eam
Inorvalp-deweoped veicstatie CIR Ts ws ne a of th,
fhe the mein = QOD ines tye Twain ene ae Bel
fontant of 10 wloranspene,

a leserting Peto

na CRP aeolvating potential is determined by system nowds for
bight sooaviey ana a high Level of radia Aux tem te
Frm ena svar rear gor, ay HH

servon, Since on improvement in ene parameter is achieved only at
‘acres an the ther, a comapnise ist he mae. On thie ba, the
desig value fox aecsersing volage wae chow a 10 hilovolte

1s Bote Current

Another ORT characevetie detnrve by the wisn perio
radian fa fons the seen ie hoamncurees. a witon, eystom design
sive thet rhe din x eat Aare a eemsantabsnite wae whieh
in inion nb ite a beans. hain sn hn sven, Aevringly,
‘ovis Lunineosat intuit, ue to stomunsonmi in reson
Aeposiion or ve degradation i imiseseens ffeeney of the phosphor by
beetom homardmen, ae eomipensatad by an appropiate slecteic
tlstment a st tes net hu, exten perting sng
bran eutrent mist be proved over which fe sat sige Fie, weed
in Beeson 2, ue au be ang nitsine ules eo iors of vnetant fens

‘ola Hdl ae ae a clang an ee rina po
He In wie eae wise lat ee

Th view af shee oonsidevali the ried gen eeavet ope
Inga assed ao 2 ctr, Th kas uf ou wl
Inv wsod fon he runt itv va on The seer ay acd 3a

heen Teakiny wha he ta roeker one of Hike

2 Pais Syaton

‘he eandom aooess feature of she iyise pot stone nseesataese an
vleetestriodserk way stent presi, raggenir wae ull Bea
Duc the porter regen the detlesiew eeeitey seule probit
Obsctivee forthe dee‘ sgeters are low expac-tance, Jew thon 25
snieomnernds or pnt whew ee psp od a wv nee
fey of 13M a2 0 ele pri or Bol pa of plat To iio,
tho to ete of putes be org to win 3 deseo, Vai
Hine defen face dve ca Vee atari cashion ABscation
sat be las Than 40.7 pe cent aver the qty seven are, which fs
Aagned ace in Soetion 2.5.1, 1U% peeasidle to obtain the 150 10
‘ols per nek asoragy deletion Inetor by earn the ns eveeration
potential in the range betcen and 11 ovat.

eats focusing eects intredsoed by the deestion aya are very
Aeiterions ta the spot se nirmiyy mo, amie ene Br de
ection fectsing Frequently made by fod nat of the deer
rignal ck tothe forws elestrede(s} vin sm oproprinte shaping eit
"This might be tolerated inayat design at ice des rable
onearsrone ies auucrmuer enw exMOUE RAT TORR TT

21 Quality Sere Aree

“Thea of he phnsplice wer wish tolerances on beam size, dete
on fair, ete ane le maintaine = denoted the gut sereen arco
‘The saniasns quality ova i determined by many ntorating ster:
onscerstinnsy and fas beet spied sx a 1 ines on se
outed ne machi enter f he facet

par

‘The plugphor must havea shor persistence {= 10~ sand) to poet
high peed systems opention sn sale posesta Lanse eeseney
as high as possible, From sia’ of high mre! ample i asco
"aed that DIS wg the opt ans savor: mata Te hte a deve fe
sho cerw 1M gilisiramlF an en ener eficeney of eke ene

‘eter npertans secon pacusieter i uniformity of High eens
srt se tity asa, The eso bjectve less chow 9-20 ara = 40
pps esr saricier feo Fe eli selon foe va, io nn 0 Keep
Tnscontem ere rate oii be

ns Po

The ving spur slurs inliche aby pire optral system, which
foeuses the ursiceeent pat vm te plcraysis investi pte,
Since the CLT faceplate tsi the Bt pt Seton tbe phospier aa
Tenees isa port us opr apsters. Ose system ubjecive that
CTU sho fe intertongesble witha the newest of rewring the
Invormaton staval i Hele potogrope pttes, hs post he Fao
ple issue fa arbor chat curved ann met very il
Foor wit gard to optics Raton hlelerere, plate curvature, at
Fest fro as. Hire ste est st grove a
tnthin se fing of SS nero igh rink ve hikes ie Be
Utifusn (DAR = U:010 ine}, the eadne of eureatune must be greater
thn 1900 ices Corsage baw om Ye asf FO. inl
tucasnted fra pepsi Inala Tie gweter ele rem
tere here al Ue Ta sae net e malntaned below 0.004 inch
Hisar wi nina sein 050 nee ween seh fees

The tube vesign nijertives dara above ae sammarzed in
ble
FOS run ony snenum naxunaeas gocnat, ay

“Tame L_ Sunt Ona sis yon Fray Sr Bros CRT

FESR I ape ater | Shanty at on enn ale

Ne velenueses in unity | Mihichowee Oe DOW inchs eauhnuc
fee serge TO es mc

RSLS Gagealiciee sewn some

‘Three pvimasy objorsivce a the leseon gan desig 2e

(smal besa sze at tho eossorer,

(dhs mesercte contzol gd tsconductasee, wed

{els exch if
Ten iportant :ectoxs censibataw 0 lng io are low cathode curse
lenrly tne -oading) and igh eum eflency (the ratio of bea to
fesode cuents. Tho er min a patie pret, whieh
in turn seduoosrathece degradation die ifm hombuedasen, Sicee the
rato of surfase tar weigh dhe CET cs the entode-emsiting seas
xelingly lage (108), nimi in of fos boar sunt
fevions eons ihe gu dash,

"An inersnareu (de pu, eowis ia Hig. eq), ie Wee in sat
OWT made today 1 enrains the elements wich foes te lets
to. atall ensues lead in he contol gveanie regan. The ero
Cover in tu i nays Ue screen ly the hjetive lee Blows
‘novalgal ho Ivede gon in great detail. Calelatons of eresover san,
calle lang nd current efciney weer ravi et, sing terval
SE Moss, or g number of fred eondgnations wit te tude 10
Slovolt ‘This wopmteh appeired navtivierory bec the hea
trent wes iter er Tne Ces na 10 neraampenes) or eth lace
ing was high {1 amprvepr em) to nehionon stably smell easyer
Mush better moslts, whist will be dseused in detail ler, were
fibived sith the tert xu aeraugament of Mg. 2, containing
Ceuade contra gr ot nod ey ati sso nae ay. Cons
feel ected un ee selva forthe Aza epot stone CUP al
snd tw ae the sje tres outliged tn Stn TT, The. Bee
Shoe eee ay td 4) rotates Eanes ay forne
ire eee thes opie acne Lg, Th, he
tenive ledge sabe vids gone ray be apple tare ceteade
front cod design A wul pevionase cevelapsl® 4. Rell Telesane
Taboraturise fir high soliton ere tne cdesignod for a 31
patel =t bloat} yas sort fortis pps, Ins. sl
evr da al tveleratel bg onseanian £2 enn

A very inprtoasfaetoeafecting esa seta ta sercen is che cle
rose eeosctey 1 ade 4 ag of ho Teed Bn, her as bs a
Croft ae onal ial eeeton ng potenti of 10 lleva. The
chalga tain sta ig i deseibed in fhe next ee
tin

sua Design of Ay ont ly Blots

"Th elev srvangement at he 3s as gap th rio i wh the
Ison ie aecleratd fn I i HO hlowets tert erty si the
Corneal evssover maznieation MV died the rt of spt size at
then divided yf encase. Sine the ay ls sense
ing i tool be tone on weak ax possle inure to minimize
TBreause of is rouveneet ae in Ta, a ees are ls ato
norte the ear long sn curt sien he Fexeion af eat
files’ rg asus tise the Binge ape a the objectire

Thick wan devehy 9 sore ant WR,
70 came wun stsinoe mecasoeat roewat, MaY oe

leas} The Later pint is élmstrata ue bes tnjeetie i Fig, 2b)
sere ti nt een ena (9 the als acter i pasene show
theanndet tor the ease of eho ctende tan for thas of tae triads, ‘The
caret effi iene Ws Ue 4 ag fens becomes more eon
{och races cathe Ig a so he 8 e-tesaf paee
lone € the essen

"Thins diferent acy figuras shown ig. 8 ne amalyael for
srasove anngention in Soya A. The lone eos rarely
Foal lato ad eatin peal place, el theca ere
‘hain fr the wove Spanier ad Fis. "The Dy. Dyna 8
“les isl in the igure were sete (dow te tabulated in Bef. 7
lo provide tbe wetkasl ns,‘ seul ce uuuaezed in Fig. wh
the aghitisatioy, 1, dus to ul lenves betwee the eave ad seen
ie potted as function of the astanee 2 betneen the exosover ae
-nidplone of thos, » gap. Ube midpiane foreach geomet ie nace
fi Fg. an tho eletromeptiol cir of the CUCT is shows Mg
200b1, TE ony be noted Fon Fig, that Af stew fer the a
omfygintcon in (Wd chil 2F hve ctrl wth Th

I abet sya lich, Fatma, a dys oat
‘arent ley, Te Ris veteran inserting 0" Seas
Sesanarinent atl a ghily nse Der, owt sale as Fi 3
Feransead eeclaatie iol ani nivairs) smart ions, sede
Netra ss erverven teatro tle all see

tone, One tron fe thie i ther The erocare mn ele th
cathe as the 4 ay sparing eppenseies nto. A Oineh value was
frleted, taevefoe, as a gved tompromice. Ako the DyiD, ratio was
‘ci anal, 0.38, in order to make the sy lens as woul ae passe
‘This ratio as not ploeed in Fig since th lowest DD, ratio eeu
ay Spangeaens sud edd forthe “(o)” goemsetey se
sion (ME = ratio toa
ehh ae

{vr mporinn ads a ie design int ie average eutode
loading #160 mianpene per fas, che eusone elem is very
high; for example, vale ina aneraamperes of vatkore cures Fe
sem ruled in pevide 10 mievoampence of beam euecent Te (57 pet
ont ume een

uote on fone, tld ite yg =pot sven he rapa
sf yatying the average Heath Ste, ou over ee ange by contol

sm ,
a weet |
i

Lowel
the voltage of 4. This and the eleeeealchavacteiatey of the tetnade
scam ill be poset in deal Setinn VET

“the crovaver rel the eso gun is imaged te ateen hy
‘the combined comverou fsuring cen af tho eae ene as che hor
tbe Tene 2" Fig. 20(a The aber te hue, nets eae etm
centremee sid often de#action sytem, proves moet ofthe bon feo
fg. It also coutins the limiting apocise that defi cae mai

er ae it posses uth th uhietive lens wad seller

‘An eller, mler haw magnets ee we chaser for the objec.
ive fe ree uf eon wel reduction of pattern distartion on
ho anrcn due to. magnece vingr Fis Fig shows the ln ws

ented erie, wehil eae he spleriea!alrations dpe
ies ectngonal feo eval I Tauren smd ine! for
tspterial sg, in whi Ve rsa hele eT
fe IM klovlttenal Thi a wil eden rad al sehr
fue ul the general eatuee il oe pits oar hens, The CTRT kes

fen L521 sealep of th lee deseo Rel. 1.) Thee ars ss
esredes, nd 4, haying macuzlly perpendisulaeelipsial apertures
oom ih sho ame se erie! the tng fete of the leas
safely epee fens ene) in the beriontal wid verted
Tieton by means wid as tespecively Is suchiove nthe eos
lpi Tens with mirmara manner of eletrodes, Aso, the a8

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