PROGRESS REPORT FOR VERSATILE, HIGH PRECISION STEREO POINT TRANSFER DEVICE

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A002900040076-4
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 5
• Document Creation Date: December 28, 2016
• Document Release Date: November 25, 2002
• Sequence Number: 76
• Content Type: REPORT

` ~ ~ "` Approved Fo,~elease 2003/01/28.:CIA-RDP78B047~4002900040076-4 STAT`
PRO~$SS RSPB&T
For
VERSATILE, HIGH PRBCISION STEREO
PRINT T1tANSFBR DBVICE
p~~~ Covered ;
January 1.965
Dates;
15 February 1965
Job Ho.:
X552 and #552A
document No.:
OD-236
Declass Review by
NIMA/DOD
Approved For Release 2003/01/28 :CIA-RDP78B04747A002900040076-4
 STAT
Approved For lease 2003/01/28: CIA-RDP78B0474~02900040076-4
#3S2 - OD - 236
PROGttESS REPORT
Fvr
VBRSATILB, HIGH YRSCIBION STEREf)
FgINT TRANSFER DEVICE
Q~~j'IVE ASSffiiB1.Y
Several caaciusiona have been made with regard to improvement of
image brightness, light distribution and distortion. Brightness increase
that sill be Been in all magnification ranges, espec#ally the highest range
star implemented by design changes is light source. By the addition of a
#ield lens at the 1~ objective leas tc supplement the existing fixed field
leas a noticeable brightness improvement was observed at field edge. Bending
lower field lean under .38X objective leas image distortion eras greatly
ia~raved. All above changes are is work sad zequired waking several agecial
lenses and manufacture of new mount,.
Laeez ~+valuation has again bean delayed because of development wozk
a~n vacuum hoiddown. However, checkout of reticle controls is nearly templets.
The control pour supply with improved reguiati+on is morkiag wail with its
associated circuitry.
VACUUM FI,~M~~~y
Much work has been expended is this area to discover a method to
te6uce ox eliminate air babbles under film when using 4~" wida film, improve
vi?ibility of film edges and to reduce drag on film during transport. Manifold
design was changed so that film edges ride in 3/lb" deep slots in clear plastic
Approved For Release 2003/01/28: CIA-RDP78B04747A002900040076-4
 S,TAT_;~
Approved ForYiiElease 2003/01/28: CIA-RDP78B0474ZAA02900040076-4
manifolds. Tha air under film is evacuated by shallow slots oa uadezaide of
manifold below film guiding slats running right angles to film edge. Although
this scheme impzoves film drag during transport and visibility to film edge,
six bubbles still psz'sist. Numerous methods for controlling six pressure have
been tried with little reduction is bubble size. Geaerallq, about 90~ ar
better of acagaed area is pulled down within a few secoada and complete pull-
down can get to a minute or more. Plsrhaps the interim fox complete pulldown
can be used fox prellmiaarq film scaaning.To get say xsduction in pulldown
time with 9~" film same configuzatioa with microgroovea will have to b$ con-
sidered together with some effect cats image. To minimise image degradation,
increased diffusion of input light will be required, but the small numerical
apeztuze of 3 magnification ranges, the ~dded~light loss with the accompanging
need to iac~aaae light source output and increase is film temperature, will
eke further rePiaecm:nta in high intensity light source a8cessary. Microgroove
cYOSa section sad msaa~ to mask or raiaimiae optical effects of cross section
ovuld have aeriou8 aide effects an exiatiag parts of the viewer.
Wt x111 approach severei suppliers foz a~oailabilitq of improvod
+~icxogroove sass sections and patterns.
$fi~AtNIAiG ,I?R~ ~ .
Receipt of modified gear boxes x111 be delayed until March 1, 1965
because of intexaal problems at vendor. The long deliverp required for a clutch
coaceraed is the modification proved to have ao delay. This fact will allow
Approved For Release 2003/01/~8~.CIA-RDP78B04747A002900040076-4
 Approved For`ii~lease 2003/01/28 :CIA-RDP78B0474~p02900040076-4
~5g2 - OD - 23b
vendor shipment and installation of .all gear baxea. Special witch #ar gear
selection has also bees received. Ths joystick is being thvrcxtghly checked
cut for georcnetry and electrical error aaurcee sees in alignment raations. The
.problem plaguing campleticm is failwce to get a high degree of correspandwnce
b~etwaea channels at Iow joystick dsflectiana. We have built several fixtures
to aid evaluation here. In addition, a switch has been added to the joystick
m~schania'm..fa~c ia~ravement in synchronising oration between sues, Except for
the jcyatick de~lectic-as within a fear degrees of null, the switch will be "ON"
.and, tharefare, all axes. will be in motion at once, ar at least a much smailer
interval of delay than with switches formerly used.
The two-speted atop scheme has been eliminated to speed up retusn
Pram scaiuniug 3imits. This motion also simplified the redesign and rewiring
of gear selecting circuit. Aa the circuit new stands, carriages will halt and.
remai~a in gear selected by the operator at the sr~cs::aQit~g stop. a.~.~,ts.,_ _. _,
be C feted iktaxt & art Feriod
1~ Install and debug scanning drive modification
~~ Fire up system, Advance into system debugging
3) +Co~apleta laser film marking evaluation
4) Complete redesign, fabrication and assembly of vacuum film holddaora mechanists
S) Complete optical debugging '
ST~-T .n
Approved For Release 2003/01/28 CIA-RDP78B04747A002900040076-4
 Approved For Release 2003/01/28 :CIA-RDP78B04747A002900040076-4
Approved For Release 2003/01/28 :CIA-RDP78B04747A002900040076-4