DIRECT IMAGE VIEWER THIRD QUARTERLY REPORT 1/13/65 - 4/13/65 PROJECT 7506(Sanitized)

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A001700010010-2
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 7
• Document Creation Date: December 28, 2016
• Document Release Date: April 25, 2001
• Sequence Number: 10
• Content Type: REPORT

-pprovec( por Rel ase 001%Ot1-1 CIA-RbP7 0 4 40017n00' 0$'10 2
Declass Review by NIMA/DOD
Approved For Release 2001/05/11 CIA-RDP78BO4747AO01700010040-2
 Approved For Release 2001/05/11 : CIA-RDP78B04747A001700010010-2
STATOTHR
DIRECT IMAGE VIEWER
Third Quarterly Report
1/13/65 - 4/13/65
Project 7506
STATOTHR
STATOTHR
Approved For Release 2001/05/11 : CIA-RDP78B04747A001700010010-2
 Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2
I. PROGRESS SUMMARY
A. The viewer is complete except for painting and
installation of the optics.
B. The two objective lenses and 5X mirrors have been
installed and aligned.
STATOTHR
C. A meeting was held on 29 January at
to review the results of the first trial grating.
Copies of the final report were sent to the customer.
D. Some schedule delay has been encountered due to
late delivery of the optical components from
STATOTHR
E. The second/tx:lr will be completed by 7 May. Dr.
STATOTHR will visit with the results
in May.
STATOTHR
Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2
 Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2
II. ADMINISTRATION DETAILS
A. Schedule
The second quarterly report indicated a delivery schedule
of the first week in May. This has been changed to mid-May due
STATOTHRto late delivery of the optics from STATOTHR
M now plans to deliver the optics on 3 May.
The acceptance test with the customer is now planned for the
week of 17 May.
STATOTHR
B. Review of Efforts by
Copies of the report on the first trial of Phase II were
sent to the customer. Both customer representatives and _STATOTH R
STATOTHP project engineer were present at the review of the results.
STATOTHR During the acceptance test period in may, TATOTHR
personnel will bring to the results of Trial 2,
Phase II. It is expected that the success of this trial will
greatly influence the future efforts of
STATOTHR
Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2
 Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2
A. Progress
1. Optics
STATOTHR
Four optical elements were delivered to and have
been installed. These were the two objective lenses and mirrors
used for the 5X magnification. The two lenses used are: for 50X
magnification, a Bell and Howell Angenieux f/0.9 50mm lens, and
for 5X magnification a Schneider Componon 210mm lens. Both were
modified to contain square apertures with an apparent side
dimension of 0.707 which is adjustable by +10%.
The 1-inch lens resolves in excess of 700 1/mm with a high
contrast target. With this quality the viewer resolution will
be limited only by the observer. The resolution of the 5X lens
exceeds that required to surpass that of the operator.
These lenses have been mounted on the viewer along with the
mirrors and focusing and alignment tests made.
2. Diffraction Grating
Trial 1 was completed and trial 2 will be completed in early
May. The results of trial 1 were passed on to the customer early
this quarter. These results may be summarized as follows:
a) The measured results did not agree with
the calculated values.
b) The intensity variation was greater than
required.
c) The variation in intensity from order to
order was reduced by using a broader band
light source.
Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2
 Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2
d) The large variation (22:1 with crossed
gratings and 50 m)1 bandwidth) visually did
not appear too distracting.
These results led to the conclusion that for the second try
a different approach would be tried. Larger grooves would be
used to produce overlapping orders in hopes of averaging out the
differences. Reports to date from indicate good
progress along these lines. STATOTHR
The electrical-mechanical assembly and checkout is complete.
The electrical drives for X-Y and magnification translation work
very well. The viewer requires about five seconds to change from
one magnification to another. Tests have been run on the repeat-
ability of the magnification changing system. That is, that an
object centered at one magnification appears in the center when the
magnification is changed. This repeats to within .030 of an inch.
All parts inside the viewer have been black anodized except
for various steel shafts, etc.
The cover has been fabricated and will be painted before the
end of the month. The colors selected are light brown (tan) for
the cover and dark charcoal brown for the casting.
B. Trips
STATOTHR
One trip was made to for the review of
Trial 1, Phase II on January 29, 1965.
Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2
 Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2
C. Work Planned for Next Period
The viewer will be completed and delivered to the customer.
The final acceptance test is planned for the week of 17 May.
A final Engineering Report will be submitted following the
delivery of the viewer.
It is also anticipated that discussions will be held late
in the quarter to discuss the viewer configuration for the second
set of optics.
Approved For Release 2001/05/11 : CIA-RDP78BO4747AO01700010010-2