PROJECTION VIEWER EVALUATION

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A000500070001-5
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 12
• Document Creation Date: December 28, 2016
• Document Release Date: March 2, 2001
• Sequence Number: 1
• Publication Date: February 1, 1965
• Content Type: FORM

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Declass Review by NIMA/DOD
~~:ON TR ACTOR
ILLEGIB
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E9TIMAT ED COMPLETION
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Serial Nr Site Tes Date
I. GEN~i.AL INSPECTION:
Test personnel shall be thoroughly familiar with applicable specifications, and
items not specifically noted in this schedule shall be checked and discrep-
ancies noted. Make a general inspection of the unit paying particular atten-
tion to workmanship and general appearance. Check interior and exterior
.surfaces, electrical wiring, transports, control panel, etc., for compliance
with specifications. Make comments below:
II. PROJECTION SYSTEM TEST:
For the follow3.ng tests, measure and record the test conditions at the time
of the test:
Line voltage (at lamp) ~~VAG
G ~ `~`~ 7~ off`
Temperature
Relative Humidity ~'
A. Light Test
. 1. With an open film gate and the brilliance control at max-
i.rrum, take light intensity readings with a calibrated Photometer at the points
indicated by the sketch below (points 1 thru 9) fvr each of the magnification
rangess
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3? In all magnification ranges, check for evidence of "hot
spots" over the entire screen. Make comments below as to the degree of hot
spatting and in which magnification range, if any. II`~/
n Theere +~i/is not evidence of "hot spotting" on thed~screen. -}-w -t~ ~'l~~-~~-~ ~~
N-~~CaL.4 ~u- ~Gt,e.Jt. ~ ,~ cs ~~c~-~-en,?4- . W~.2s~ .~c~~-~f / (o v)(Yc~evi.-R. ~~
2
3 ~+
1
9 5
B
7 6
3 a - 3 =13 .~.,
~- ~~ ~- !2~-v
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1. Place a calibrated grid of approximately 0.2" spacing in
the film gate and clamp. Determine the length that each side of the projected
grids should be by multiplying the actual grid spacing by the magnification
range as engraved on the selector buttons, and record in the space below.
Make 16 random measurements of the projected grid lines, 4 in each quadrant,
in each magnification range. Half of these measurements should be in the
X direction and half in the Y direction; record measurements below.
Calibrated grid of ~ '~r~ spacing.
Grid lines at X
Grid lines at }C
Grid lines at X
Grid lines at X
2. Measurements : ~ y-, h^
~x
~ x
l~.x
.3t~x
Quad i
/5:-7 X
~ ~ 3D '
X _ 5~-
X ~~~~
/~~ 7 X
~ 34 "
~ ~ 3 9
~ ~,7 Y
30 . -
~ ~
Ps.~ Y
~
y- s-9_
Y ~yq
y , ~?-
Y: ~~-
Quad II
~ ~ ~ 3 , ~
~' = 3 a ..
,~ = .~ ~
X ly9-
~ - ~S~ 7
X = 3~ -
~ ~ ~_
~ r y 9
Y ,~ ,s,7
3~ ,
Y
~r ~S`~'
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 X ` ~S, 7 -
Y ~=~s;7
X = 30
x -- 3 ~
~y~-
3. Magnification: Compare the average of the projected grid
line measurements with the "Grid lines at X" length (determined in B.1. above
to determine conformance with magnification specifications.
Does conform with magnification specifications in C~X, X,
X, X.
4. Distortion: Compare the projected grid line measurements
with the "Grid lines at ~ X" length (determined in B.1. above) to determine
conformance with distortion specifications.
Does~ro-t- conform with distortion specifications in ~ X, _,_X,
X, X.
5. A final distortion test, make a visual check of the
entire screen to determine the presence of any distortions not discovered -~r
performing the above tests, i. e., curved grid lines, wavy grid lines, etc
Make comments below: , /~ ~ (1 _ ~ o ~~~, ~- /I ~~`~"~~~
1/ i C~ cX GYM
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Quad III
Quad IV
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B. R~:SOLUTI0~1 TEST
1. Place a .Standard High Contrast Air Force Resolution Target
in the film gate and apply clamping. Make 5 readings of the minimum readable
targets at each magnification setting, one in each quadrant and one at screen
center, record readings below:
Cntr I II III IV
x 5~~.~ ~7.~.~ ~a~3z 5 7,zS ~j.z~'
~x 1G~r 7~ 1~/r7V ~~lf7G /L/r7L 1d/r~v
2~ !z
2. The brilliance control should be left in the maximum pas-
ition throughout the entire test - preferably for at least $ hours without
shut-off during breaks in the test schedule. Test should start with a new
lamp and should burn-out occur, record the time on the lamps used for the
test. At the end of the test, check all optical elements for heat damage -
check lamps for bulges and swelling.
III. FILM TRANSPORT TEST
A. Film Degradation Test: Load a roll of 9z" standard base film
which is free from any scratches or gouges, i. e., straight from the photo
lab and in new condition. Scan and slew in both directions 60 times (90 times
each way) with frequent stops and starts within a 10 to 20 foot marked segment
of the film. Check this segment of film at the highest magnification for
evidence of degradation.
The film is~is not appreciably degraded - make statement below as to
seriousness of degradation, if any.
B. Film Drive Test
Load a full 8" diameter reel of standard or thin base film and
scan or slew throughout the entire length. Also, scan and slew back and forth
several times at or near each end of the film to determine that operation of
the film drive is in accordance with Film Drive Specifications.
The unit will not satisfactorily "handle" full reels of film
thraughout the a tine length. Make comments below: ~J C'jZAc~rz. tu~~Q ~~~
y-
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2. Time the movement of a known length of film (15' or so)
scanning at the slowest possible speed and at the highest magnification.
Record the speed below. Repeat the test-for the fastest scan speed and
record the speed below. While in the slow scan speed, check for noticeable
jerking or. sporadic movements of the projected image. Slew an entire roll of
film from one side to the other and record elapsed-time below.
Slowest scan Q~1~ inches per second
Fastest scan ~~,b`~ inches per second
~Q 5t~# D""' ~ Slew ~ film f ~ 17 ~~ minutes/seconds
There is/=. noticeable jerking or sporadic movement of the projected
image at the highest magnification. Commennts: ~.~c~x~c~e ~~~?i~.l..Q~G c.~.,..a`~'1'
,
u~-- G+- /
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3. Repeat the test in paragrap~ above using 92" Thin Base film. ,
-e '~K, ~.L~c.~u, ~~z.~x
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IV. GENERAL OPERATION: While performing the above tests, all controls
and operations should be thoroughly exercised and controls should be placed
in every conceivable combination to check safety interlocks in the equipment.
Make statements below as to proper operation of all functions.
~~A,p~~~ L A. Later-al Drive. (Extreme to a}p-posits 1 extr~etme, ?~' ,)secon s }D Q
YL1.CL(,,~ `L oC~ GL4..~ k~Y 3[7' ~ - ~C5C~4 tL Ci. ..Q/~LJ'jQ . V A.L~ i~ Jir`E"~y A~c7F'h' C3~.u c~ r~Ck'k 1
~n ~% B. Fi m Motion Control . ~k ~ !l~ 't~ r .Q~',c~-l-~ C~~ x~x-a-~ to mot,^:rc~ -
~/~-e~ I.r.~C~,~.~ ~ ~ ~.~o C~(ercr~Q . e~c~ w~~e~ ~xe.~ ~. ~i ~rs o
~ """` ~C'C ~ " ti.l'tR /EL. [32~ ~ ~ -~Li+-~..E ~ ~.C~.S2. /T_.?n(.,tr({X~i.._ ~!
n /l~~ r
'W`~- ]~~LK ./LL'~.t ~. ~ ~.CJ~L L C~u~ ~ "~~ I .J~+[..S''C'~' - C-CTC'/J~'~G) ~ C~- "ii /1 - ~ ~Z L~/k~X~t'1 `
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D. Illumination C//fontrol . ~e7/t..~~e?~.-~. .r-C~Go G"~e.e-Q u. ,.Q.u~ -'ero-P lu
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h 1 above using ?Omm St'd film. _
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~,(,t~ ~~ . 1 n i .. v~ ir^r n ~ ~. A,/i r. , . , . , . /1 , XJ.LC"_.,,5 -0. , ..l/ / n,.a~ fig.
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E. Fine Facus_~crt~.v~~eq`` ~ '4'~crc.~; u~~ ,Mary ~cx.-c? ~~,req -~ ctu~a-tac~ca~ccs.S~_~,~
~C~ ~ .rt ct.(.e, Gtrr~. .~ C~ c.~ .rL.e%Qszr~erz. V~8 ~~~ ~t.GcQ.?r~
F. Scan/Slew Made Selection..~c.~,~.~n
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(~. Qther. (List controls tested and make commnents).,q. t/
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V. GENERAL: Personnel conducting tests should note below any comments
regarding opinions on workmanship, machine suitability to the mission, machine
strengths, machine weaknesses, etc. Make a lamp change and comment on the
ease/difficulty of this operation.
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Tests performed by:
Name Title
Mailing Address Telephone
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