WIDE-FIELD, HIGH-POWER STEREOVIEWER

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A002200030006-9
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 4
• Document Creation Date: December 28, 2016
• Document Release Date: December 6, 2006
• Sequence Number: 6
• Publication Date: August 23, 1967
• Content Type: MF

Approved For Release fflEfffD
23 August 1967
MQBP UM FORChief, Development Staff, TDS
Chief, Exploitation Systems Branch, DS
WideField, High-Power Stereoviewer
1. In FY-65, Contract Numbed as initiated witbi I ~~ 1
for the design and development of a ject stereovt l.r, which is
essentially a specially configured light table 'or the 25X1
Versatile Stereoscope.
2. The instrument has been fabricated and delivered to ICE
x itial evaluation has shown that it is far f?rm satisfactory; however,
the contractor has cletely exhausted all the allocated funds under the
cost contract. Certain features do not meet the expressed provision of
the contract while others do not comply with the intent. The foils ring
deficiencies were found;
.nsport.
The right film.
Extensive scratching and film adherence to
the platen was occurring. This was caused by the film
2bb on the underside of the raised top glass platen.
Additional r,. an extreme electrostatic charge was being
built-up between the glass platens by this rubbing.
ThU deficiency has been cured by the undersigns de-
signing and the shop's fabricating a new set of brackets
to reposition the rear film roller to enable it to guide
the film between the two platens. This roller was re-
qu#.red to be lowered 0.237 inches!
(2) Both transports are extremely noisy. It is suspected
that the noise is generated from a number of sources such
as the motor, the clutch/brake unit, the gear transmission
is increased from ambient levels of i2db, 51db and 58db
>n the As.* Be,, and. Cs sound meter scales respectively to
89db on all scales. Measurements were made for the roller
Lleclass evie.
sP;'?s'r 1
EKCI!!i?M i -m ~t!2J"lativ
dow:tr_r and
Approved For Release 2006/12/06: CIA-RDP78B04747AO02200030006-9
 Approved For Release 2006/12/ 7A002200030006-9
Wide- 'i el d, ifigh::Power 3tereoviewer
noise alone and the left set increased the ambient
level of SMb on the Cs scale to 82db. A cc arison.
with the I Imotorized transports indicate that
they only increase the aient noise levels 22db,:
19db1 end 12db respectively on the As, Bs and Cs
scales. in addition to the noise problems it was
found that the transport system does notsupply
enough power to the spools, Neither transport will
wind film onto a fully lid 9.5 inch reel. This is
,:
o-As
at
tfi
"
.
.
e
spec
cific failure of the contract
b, Light Sources
Brightness. The maximum brightness of the gener L
illumination was found to be only 1300 ft. lamberts.
The contract specifically states that 1700 ft. lamberts
nsfty
t
x
e
~
quired. Furthermore, at this max3~ :
~
_ i
s the l'0^rn 'rs V1
t
e
illumina
ed a um intensity variation of
all
ow
tract only
At the lowest illumination setting there is perceivable
flicker; another failure of the contractual terms.
(2) Noise. There is a significant light source buzz
evident in both the cold cathode grids,
(3) The High Intensity Light Source. Although the High
Intensity Light Source is significantly brighter than
the cold cathode grid, the color of the light- very
reovi ewer is capable of a higher resoD v-
St
il
e
e
the ersat
ing capability with the lower intensity white cold-cathode
light source than with the yellow high intensity source
implemented. Although the concept of NtrackingAmar ateets
achieve the magnetic flux required for proper tracking
between the Large spacing of the master and slave g-nets
necessitated by the raising cover glass platen. As as
conseence, the tracking ability is only marginal and
the slave magnet (that one attached to the fibre Optic
cable) interferes with the general illumination masking
shade. The master magnet assembly restricts the motion
of the stereoscope's rhomboids, *Hereby all ithomboici
positions cannot be conveniently achieved.
Approved For Release 2006/12/06: CIA-R?P78B04747AO02200030006-9
 Approved For Release 200
74747AO02200030006-9
14 1w,
EJECT: Wide Field, High.*POwer 6tereoviewer
C. The four extrusions on the microscope transport
casting interfere with the upper glass platen when
it is completely raised,
d. More film guides need to be addled to enable the
leading edge of the film to be easily positioned
between the two glass platens during loading.
e. The clutch brake units on the film spools are applied
when power is applied to the instrument. This makes
loading the film difficult.
f. There are Mazy sharp corners on the instrument.
ecause the contractor has ape nA n1 1 4-U
caea zu~nCs o
the cost contract, it is recommended that
be approached
to detemine what nc'J,ing level on a fixe a ass would be required
to modify the existing table to bring It to an ,cceptable level of pair-
force. A rigid specifica-Lion would be required for each of the above
CAFE tr 4ann! ssn r
tin acceptable agreement cannot reached with
ether
contractors such as should. be approached; it :L I owever. is at'rrinrrl V rcr,ns mmv.a..a r.c z
the "?? s+ u+ vase v .uextiA.ca a oy eizner
Equipment Perfoxcmance Staff or the operating components be deferred
until the above discussed deficiencies can be. rectified. e
Exploitation Systems Branch, DS
Distribution:
Orig & 1 - Addressee
2 NP1C/T. S/DS/E8B
Approved For Release 2006/12/06: CIA-RDP78B04747A002200030006-9
 Approved For Release 2006/12/06: CIA-RDP78B04747AO02200030006-9
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Approved For Release 2006/12/06: CIA-RDP78BO4747A002200030006-9