DEAR MR.(Sanitized)

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A000100070020-2
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: July 20, 2000
• Sequence Number: 20
• Publication Date: October 5, 1962
• Content Type: LETTER

Approved For Release 2001/07/30 : CIA-RDP78B04747A000100 7 P 2
YtiJ
COHTR!CT FILE
Declass Review, NIMA/DoD
5 October 1962
Enclosed you will find three copies of the 22nd Monthly Progress
Report on Contract Task Order No. 1, for the development of
an Image Enhancement Instrument.
Very truly yours ,
WWIDsbk
Enclosures - 3
Approved For Release 2001/07/30 : CIA-RDP78BO4747A000100070020-2
 Approved For Release 2001/07/30 : CIA-RDP78B04747A0010070020-2
NAW
22nd MONTHLY PROGRESS REPORT
Im Enhancement Program
Contract Task Order No. 1
4 September to 4 October, 1962
Following the diagnosis that the scanning difficulties were principally
caused by non-uniform mirror -notion, a new drive system was designed utilizing
a "box" cam, operating the mirror at 5 sweeps per second.
During the period covered by this report, the cam was procured, after
considerable delay, and the assembly of the scanner completed. Initial tests
showed that the mirror motion is much more uniform. The output photographs
now reveal the fluctuations in the modulated light source, and work is underway
to design and incorporate the light regulating feedback loop in order to reduce
the effects of these fluctuations.
A number of aperture stops have been added to the optical system in
order to reduce flare light.
The rapid film processor has been re-built with some new parts.
The modulated light source cathode ray tube deflection yoke subassembly
has been replaced with components of better design.
The camera lens, which was initially an f/2 Astro-Berlin projection
lens, has been replaced by an f/3. 5 Kodak Ektar. The Astro-Berlin was found
to seriously limit the resolution capability of the output recording.
Three of the plane mirrors in the input scanner optical path have been
replaced with new mirrors and improved mirror mounts.
Emphasis on the project is now confined to the laboratory experimental
evaluation of the central "core" enhancement process. The sole task objective
is the production of photographic results which adequately demonstrate the capa-
bilities of the techniques incorporated. The orientation of the remaining effort
on the project will follow the examination, by concerned Government engineers,
of these results.
Approved For Release 2001/07/30 : CIA-RDP78B04747A000100070020-2