CONTACT DUPLICATING & RESEAU PRINTER AND HIGH RESOLUTION STEP & REPEAT PRINTER FIFTH MONTHLY LETTER REPORT

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A001600040021-9
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 11
• Document Creation Date: December 28, 2016
• Document Release Date: January 27, 2005
• Sequence Number: 21
• Publication Date: December 10, 1996
• Content Type: REPORT

Approv"qpIease 2005/02/17: CIA-RDP788O47 01600040021-9
HIGH:RESOLUTION STEP & REPEAT PRINTER
FIFTH. MONTHLY LETTER REPORT
December/ 10 , 1'964
Period: November 1, 1964 to December 1, 1964
STAT
NGA Review
Complete,'
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CONTACT DUPLICATING & RESEAU PRINTER.
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CONTACT DUPLICATING AND RESEAU PRINTER.
1.2 'Activity, of this Report Period..
Plans for Next Report Period.
1.5 Documentation
2.2., 'Activity of this Report Period..
2.1. Purpose i. .
2.2.1 - Electronic//Control
V
2.2.2 Film Gate. . .
2:.2.3 Exposure Control
Film Frame Identification. . .
2.2.5 Film Handling. . .
2.3 Plans for Next Reporting Period .
2.4- . Problems . . . . . . ... .
2.5 Documentation . . . .
2.6 Questions Outstanding . .
3'.0 STATUS OF FUNDS.
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HIGH RESOLUTION STEP AND REPEAT PRINTER.,
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tortion?or damage..
:apability, and high'.resolution'with minimum film !dis-
Ac-tiual' tests on 'the breadboard unit have successfully demonstrated
`1-.0 CONTACT'DUPLICATING AND RESEAU PRINTER
1.1 Purpose
The overall objective of the current contract is the design,
fabrication, test, and..delivery in fifteen months of 'a. photo-
Prime design goals are high speed' automatic opera-tion,variable
'graphic'Step,and Repeat Contact Duplicating.& Reseau Printer....
The deliverable equipment will be 'sui.table.
for operational use.
The'Printer will accommodate films of 70.,
mm...;o`9--!l/2',' width with frame lengths up to 30. inches,. and.will
offer.: operation in. the Reseau mode as an' option.
Primary-activity'of this report period 'has/been the completion'.,
1.2,, Activity of this Report ,Period'
of the Design'Plan report, paralleled bbreadboard experiments'
to confirm the recommended solutions, ontained therein.
the DC motor and magnetic particle clutch technique for both film
transports Further development-is directed.toward'lowering the
-transient film stresses-' -with continuous 'adjustment of torque as
negative frames have been incorporated into the unit.
In conjunction with operation of the air-pressure pad and the
-Photoelectric means for advancing duplicating film and for sensing
the film spool diameter varies.
exposure source, wiring of all components has been completed'
so that automatic cycling of all , functions. is. now possible.
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The multiple lamp-bank and honeycomb collimators are now being
installed in the breadboard unit in preparation for a,prelimi-
nary photographic test program which is expected to demonstrate
resolution and uniformity of illumination.
A secondary breadboard
is currently being fabricated to evaluate exposure . sources. and.
-various methods-for platen illumination. A photoelectric circuit
for Automatic Exposure Control will.. be included n..the'mock-
before multiple circuits are fabricated for, inclusion- in the,
p .
Investigation of the.Reseau grid fabrication problem.. is con`tin_.
breadboard unit.
uing with two
release of a purchase order. 'Preparation of the Design Plan=-is_
manufacturers to determine optimum means for pro-
'ducing grid lines and to.r.esolve specification details prior to
drawings were reviewed with the program-technical monitors...on
now--complete' as--well as the' Industrial Design renderings .and ob-
jective board,. A preliminary copy of the Design Plan , and,layout'
.November 20, 1964,, and final publication is currently under way..
l-:3 Plans for Next Report Period'
:Following the preliminary photographic
Reseau grid.' lines will also be-contact printed. With a.firm plan.
demonstrate full-:scale operationwith,Automatic Exposure Control.
Simulated aerial' negatives constructed of multiple.' arrays of step-
--wedges will` be used, as well ' as gh resolution targets. Sample
tests on the'breadboard
unit, a second series of tests will be performed` to' evaluate and
___.in-- mind for ,the' Pre-View & Punch Station, lay-out drawings will
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generated.to determine configuration and spacing o;f' the' magH
._.of the'Reseau grid. binding frame and locator pins
nifying viewers. -and associated punches,, as well `as the.,-design,...
-Tentative selection of specific.electrical components with' con-
'-.No major problems to delay scheduled progress have:occurre,d or
sideration of RFI $uppression' is under, way'.
1.4 ' Problems
-are optimum thickness of .the Reseau grid platen wi-th.regard,to
: allowable deflection under 'contact printing pressure, and-,-the-
.critical consideration to-achieve resolution without systematic.
are forecast. Some of the important considerations to be resolved
'i mporance, of inherent imperfections in glass manufacture.,.Op-
timum degree of. collima.tio'.n' of ',the exposure sourc'e'is another',
1.5. Documentation
The following items ' were resolved during ,the Design,. Plan 'review.
-meeting held 'with- the program technical monitors on November 20,
1964 / '
1_-.--Paragraph 3.6. Synchronou
motion of negative?.and,duplicat-:
ing,film implies 'concurrent advance, but
speeds for. any purpose.'
'.`white"
3. Exhaust air from the Printer need"not be refiltered, but may
be ducted back into 'the recirculatory system of the facility for
not synchronism of :'film
2.___Reseau`lines are- -_ ten.ta-tively-proposed to print out
____but maybe "black" if advantages. can be demonstrated.
reprocessing.
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4. There will not be arrequirement for printing 2-1/4" x 2-1/4":
frames individually. The smallest. increment of negative-advance
shall be 4-1/2'.~ minimum.
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2.0, HIGH RESOLUTION STEP AND REPEAT PRINTER 0
2,1. Purpose,
The purpose of this effort is to design, fabricate, test and
deliver in twenty months a high-precision Step and Repeat
Photographic Contact Printer. This Printer, will be capable
of producing photographic contact prints of the highest possi-'
ble quality, resolution and acutance from roll films of width
varying from . 70 . mm to 9-1/2" up to a maximum of 30 inches.
.~ This program will include a six-month Feasibility Study and
Design Analysis, followed by a Breadboard Phase. Following
design approval, a prototype Printer will be produced'in ac-
cordance with the Design Plan..
2.2 Activity of this Report Period
2.2.1 Electronic Control
The Electronic Controo, study of all subsystems, except the
Exposure Control Subsystem, has been completed. Control Panel
changes as discussed at the'November design review meeting are
incorporated, and the control panel layout drawing is being up-
dated.
2.2.2 Film Gate
Resolution , tests-with open and plastic gates indicate resolution
.'of 400;lines per millimeter can be achieved.
'Step wedges will,be'used for gate evaluation of exposure control.
A test configuration has been designed and step wedges have been
ordered.
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Anti-reflection coatings on glass have been received and tests
are being. conducted to evaluate this method of reducing Newton
fringes which-occur between the negative and glass gate. Designs
for a'breadboard gate have been initiated.
2.2.3 Exposure Control
An electronic dodging,"system utilizing CRT beam modulation has
been analyzed and found to be unfeasible for. a 9 x 30 format
within the machine speed,and.film requirements of the system.
Compromise systems are being studied to determine.the optimum
. investigated in conjunction'with the light source study. In-
achievable results with electronic CRT scan techniques.
Aback-up slit scan utilizing a moving light source is being
vestigations involving spectral match with film characteristics,
rate and degree 'of illumination modulation and sensitometric
,analysis are expected to be concluded. A final system configur-
,.ation and initiation of the breadboard design is being planned
for. the next ',period.
2.2:4 Film Frame Identification ..
Optical density tests.of.,unexposed film of the types to be used
in the printer have been. conducted. These tests indicate that
photoelectric sensing by means of selective transmission through
both the negative film and the unexposed film is possible. A
photocell has been selected for the film reader and breadboard'
design has been initiated..
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Layout of the film transport breadboard has started. The bread-
board structure will be capable of subsequently housing other
major printer components for feasibility testing. Transport
- component selection and purchasing will commence during the
next reporting period.
2.3 Plans for Next Reporting Period
2.3.1 It is anticipated that the feasibility study will
.'be concluded and the Feasibility Report will be prepared.
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2.2.5 -Film Handling
.2.3..2 Additional breadboard, layouts will be started and
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ILLEGIB
A
Project clearances' have been obtained and an early meeting with
,the procuring-technical personnel is required to discuss the de
'tails of film coding and exposure control.
component selection and purchasing will be initiated.
2.4 Problems
2.5 Documentation
technical monitor and:-approved at the design review meeting
.A revised list of specification changes was discussed with the
on 23 November 1964.
2.6 Questions Outstanding '
2.6.1 List of spool sizes and formats.to be furnished by.
the' technical monitor.
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2.6.2 Document procurement' to be furnished by the techni-
600L,Test arid.Ev'aluate the Kalvar 70 MM
and 5 Inch Roll to ' Rolf Contact Printer
Processor (EN=85) O'
ary 7, 1964 DOD
915 Printer Contact Photographic EN 3
December 1962
System September 3, 1963
Film Printer EN. 31 August 1962-D OP. f
cal monitor.
/AD-438 418 Density Discrimination..for Printer
/AD-426..,996 A'Continuous Tone Diazo Reproduction,
047 Test and' Evaluation of USAF 70. MM'? Roll
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