PROGRESS REPORT NO. 2

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A000700020028-3
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 3
• Document Creation Date: December 28, 2016
• Document Release Date: April 1, 2002
• Sequence Number: 28
• Publication Date: March 18, 1966
• Content Type: REPORT

Approved Forll~+lease 2002/06/17 : CIA-RDP78B04747+1>~d00700020028-3
Progress Report Na. 2
Report Period; 19 February 1966 to 18-March 1966
i
Project Title: Gems Develagment (continuation)
PROJECT ITIENTIFICATION
Contractor's Project No. - - - - - - SPO-27203
Customer's Project No. - - - - - - 99740-6
Contract No. - - = - - - - - - -~
FISCAL DATA
Type of Contract
Total Contract Price
STAT
Dated: 5 January 1966
Scheduled Completion Rate 30 June 1961
Percent of Total Funds Expended 3.7% as of 25 February 1.966
~~
Percent of Work Completed 3.7ya as of 25 February 1966
Declass Review by
NIMA/DOD
STAT
STAT
Approved For Release 2002/06/17: CIA-RDP78B04747A000700020028-3
 Approved For lease 2002/06/17: CIA-RDP78B04743i~00700020028-3
Objective of Pro ect
The principal objective of this project is to Betermine how well the
image quality of mission photography can be assessed by means of Gems. In order
to accomplish this objective, psychological tests shall be performed wherein
photographic images of known quality (^,rems) are compared to mission photography.
In fulfillment of this objective, a number of subta~ks are being undertaken.
These subtasks consist in the refinement of existing Gam making techniques,
the study of alternate techniques, the study of Gems viewing equipment, and the
preparation of Gem sets in large numbers.
Status of Overall Proiect
As expected, the overload on the Gems facility continued through
the second month of this program. However, the expansion of the facility is
proceeding as planned with completion scheduled for 4 April 1966. Preliminary
work has been accomplished in planning various tasks of the overall program and
some specific progress has been made in the refinement of existing Gems making
techniques.
has been given. This clearance makes it possible to go ahead on
the detailed planning of the psychological testing. To this end, a tentative
meeting between contractor and subcontractor (on testing} has been scheduled for
week of 28 March.
Work Completed During Report Period
a) Equipment Modification
The source assembly of the Gem making equipment is being modified.
The 300 watt tungsten lamp and single diffuser are. being replaced with a 650
watt bromine cycle lamp, reflector, and double diffuser configuration. Tests
of this configuration show that improved uniformity of mask illumination and a
threefold increase in intensity should be obtained,
b} Ncar Field Effects in Gem Making
The degradation of knife edge images by near field effects (Fresnel -
diffraction) has been determined for a limited number of Gema rinting.geometries.
The preliminary results indicate that near field effects play~in at least same
cases, a significant role in the formation of the image in the Gems making proce.3s.
Further analysis will provide a guide in the proper selection of Gem printing
parameters, viz., source to transparency, and transparency to film spacings
c) Psychoph~sical Testing
A work statement was prepared as a basis for the subcontract on
psychophysical testing. A tentative meeting has been arranged for week of
28 March.
Customer clearance and briefing for one of contractor's personnel
Approved. For Release 2002/06/17: CIA-RDP78B04747A000700020028-3
 Approved For'R~ease 2002/06/17: CIA-RDP78B04747~00700020028-3
d) Gema Viewer
A request for quotation has been released describing a split field
microscope comparator. This device is to be used for laboratory comparison of
Gems and also is to be used in the design study of an automated Gems viewer.
Work for Next Period
The specific activity for the next pexiod will include:
a) Test of modified Gems Frinter
b) Continued analysis of near field effects
c) Meeting on and planning for Psychophysical Testing
d) Start of Gems viewer study
Approved For Release 2002/06/1 ~ : CIA-RDP78B04747A000700020028-3