DEAR JOHN:

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A000600020013-0
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: December 21, 2001
• Sequence Number: 13
• Publication Date: March 24, 1961
• Content Type: LETTER

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Approved For Release 2002/06/17 : CIA-RDP78BO4747A000600020013-0
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STATINTL
P. O. Box 1407
Main Post Office
Washington 13, D. C.
STATINTL Attention:
STATINTL
Dear John:
of the 2:1 Reduction Lens. This was written by
I am enclosing the latest report on the development
one of our Optical Engineers, who is currently
working on the lens development?
Since the time this report was completed, the design
has been corrected to the point where we feel that only
a minor touch-up will be required. In fact, it may be
good enough right now to put into production.
We are making a thorough analysis which will let us know
whether further work is required. In the meantime, we
are sending the glass requirements to the various optical
companies all over the world in order to get price infor-
mation on their willingness to bid the job.
As you can see from the design report, we started out with
a considerably simpler design concept than the one which we
Declass Review by NIMA/DOD
Approved For Release 2002/06/17 : CIA-RDP78BO4747A000600020013-0
STATINTL
 Approved For Release 2002/06/17 : CIA-RDP78B04747A000600020013-0
STATINTL
STATINTL
STATINTL
March 24, 1961
Washington 13, D. C. Page 2
finally used. The present system contains 14 pieces
of glass with a total blank weight of approximately 1, 300
pounds, Obviously, we cannot purchase this glass for
the estimated cost in the original breakdown which was
We are hopeful that the glass costs will not exceed
the entire contract price.
STATINTL You and I have indicated that you do not wish
us to lose money and although we cannot submit a revised
cost to you at this time, I thought I would give you a little
advance notice that our costs will be considerably higher
than those in the estimate. As soon as we have final glass
quotation, we will let you know how we stand on the entire
contract..
the one variable which we cannot control except through speci-
fications to our vendors. Perhaps, you have some contact
with the glass companies which could help us to impress upon
them the need for the utmost in quality on these large pieces of
glass.
resolution requirements. The only problem from here on is
one of manufacturing the system to the design performance.
In achieving design performance, glass homogeneity will be
The lens design at this point looks extremely good and we
are perfectly confident of its capabilities of meeting the
We are looking forward to your visit and expect to have a com-
plete story on where we stand by that time.
Very truly yours,
Encls. Chief Engineer
GKT:cs
STATINTL
STATINTL
Approved For Release 2002/06/17 : CIA-RDP78B04747A000600020013-0