TWIN LIGHT SOURCE STEREOSCOPIC LIGHT TABLE

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A003000030002-4
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 37
• Document Creation Date: December 28, 2016
• Document Release Date: November 23, 2004
• Sequence Number: 2
• Publication Date: October 27, 1964
• Content Type: REQ

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TWIN LIGHT SOURCE
STEREOSCOPE LIGHT TABLE
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Declass Review by NGA / DoD
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Section
TABLE OF CONTENTS
Title Page
TITLE PAGE un-numbered
TABLE OF CONTENTS
LIST OF ILLUSTRATIONS -iv-
1 INTRODUCTION 1-1
1.1 GENERAL 1-1
1.2 BRIEF DESCRIPTION 1-1
2 FILM VIEWER DESCRIPTION 2-1
2.1 OVERALL CONFIGURATION 2-1
2.2 ILLUMINATION SYSTEM 2-2
2. 2. 1 Light Sour ce s 2-2
2. 2.2 Viewing Light Controls 2-3
2.3 TILTING MECHANISM 2-4
2.4 MICROSCOPE MOUNT 2-5
3 OPTIONAL FEATURES 3-1
3.1 MOTORIZED FILM DRIVE 3-1
3.2 FILM FOOTAGE COUNTING 3-1
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TABLE OF CONTENTS
Section
Title
Page
3.3
FILM FLATTENING
3-2
3.4
SLACK LOOP PROVISION
3-3
4
RELEVANT EXPERIENCE
4-1
4. 1
INTRODUCTION
4-1
4.2
MULTI-SENSOR VIEWER
4-2
4.3
4-4
5INCH V1EWI?dt/PRINTJiR
(PORTABLE)
4.4
IIC LIGHT TABLE
4-5
5
PROGRAM SCHEDULE
5-1
6
QUALITY ASSURANCE AND
6-1
RELIABILITY
6. 1
INTRODUCTION
6-1
6.2
QUALITY ASSURANCE
6-2
6. 2. 1
Receiving Inspection
6-2
6. 2.2
Electrical and Mechanical
6-2
Inspection
6. 2.3
Optical Calibration and
6-2
Alignment Checks
6. 2. 4
Witnessing of Final Tests
6-2
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TABLE OF CONTENTS
Section
Title
Page
6. 3
RELIABILITY
6-2
6.3. 1
Design Review
6-3
6. 3. 2
Use of Preferred Parts
6-3
6. 3. 3
Human Engineering
6-3
6.3.4
Usage Factors
6-3
6. 3. 5
Failure Reporting and
6-3
Analysis
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Figure
NuiTibe r
2-1
4-1
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4-3
5-1
6-1
6-2
6-3
LIST OF ILLUSTRATIONS
Title
Overall Configuration
Multi-Sensor Viewer
r-1Viewer/Printer
IIC Light Table
Program. Schedule
Reliability Organization
Reliability Functions
Failure Report
Following
Page No.
2-1
4-2
4-4
4-5
5-1
6-1
6 - 2
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SECTION 1
INTRODUCTION
1.1 GENERAL
This proposal for the Twin Light Stereoscope Light Table has been
prepared by
in response to une
Design Objectives document, dated 10 September 1964.
1 particularly well qualified in the engineering tech-
nologies which are essential for successful design, development
and fabrication of the required light table. Of particular value in
the proposed program is extensive experience in de-
veloping equipment for image in. erpretation systems using direct
viewers. Based upon this background, can offer assurance
of high-quality picture illumination, together with an already
developed, precise and reliable dimming control. In all phases of
equipment design, the application of sound human engineerinc con-
cepts and thorough reliability planning is well established at
1.2 BRIEF DESCRIPTION
The Twin Light Stereoscope Li ht Table, as shown in Figure 2-1, is
a table top unit which present
pproach to developing a
viewer which will meet all therequiremens of the Design Objectives.
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The special features of this viewer are:
1. Optimum usage of human factors techniques in the
design of the equipment.
2. An illumination system incorporating cold cathode
grids which will provide the maximum screen
brightness and evenness of illumination.
3. A viewing light dimmer which provides brightness
control over the entire illumination range without
any fli_ckeri.
4. A light table tilting mechanism which can not be
jarred or slip and thereby cause accidental dam-
age to any glass or optical components.
5. A microscope mount configuration and design
which permits easy and convenient alignment of
the stereoscope's optical axis to the required 10
minutes of arc.
The light table is 18" deep x 16" wide x 3" high in level position.
The detachable stereoscope mount extends 9" above the top sur-
face. The on-off controls and dimming controls are grouped on
the top of the rear fixed surface at a convenient angle for opera-
tion.
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SECTION 2
FILM VIEWER DESCRIPTION
2.1 OVERALL CONFIGURATION
The Twin Light Source Stereoscope Light Table, as shown in
Figure 2-1, is a table top unit which provides the divided viewing
surface directly in front of the operator. The viewing controls are
conveniently located on the top surface, so that all controls are
within easy reach of the operator with no obstruction of the viewing
surface or interruption of the viewing operation, when actuating the
controls. The viewing surface is split about its front to rear center-
line so that each 5" x 6" viewing area becomes independent light
sources when the partition is removed. This permits stereo viewing
with differing densities or with differing scales. The viewing surfaces,
stereoscope mount and controls are all mounted on a front pivoted
frame which permits inclination of this light table proper, by the
operator, of from 0? to 45? (0? being parallel to the floor). As
shown in Figure 2-1, the top of the viewing surface is located less
than 3" above the table top. The tilting mechanism located in the
rear is manually operated by the operator to raise the rear of the
light table proper so that the requested inclination of up to 450 is
available (30? tilt is shown in Figure 2-1). However, it should be
noted that the B. & L. Zoom 70 and Wild Model M-5 Stereoscopes
have their eyepieces set for convenient operator viewing when the
imagery is held flat. Note that the controls are convenient for the
operator throughout this range and that comfortable viewing is always
afforded the operator when seated on a, normal desk type chair. The
light table does not incorporate reel brackets but provision is made
for future mounting of the Richards dual reel brackets (T-2-5) without
interfering with any of the controls or viewing functions.
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DEFLEX CONVERTIBLE GROUNDING PLUG-I
HIGH VOLTAGE TRANSFORMER (2)1
LI/ARIAC DIMMER CONTROL (2)
MICRO SWITCH INDICATOR (2)
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.....
ALIGNMENT RETICLE
0
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9.
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II
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GLASS STAGE 11
_
0 0
B 8 L STAGE CLIPS (4)
B & L MODEL It ZOOM STEREOSCOPE
//
-IWILD M-5 STEREOMICROSCOPE
/STEREOSCOPE ADAPTER
/ADJUSTABLE MICROSCOPE SPRING LOADED
MOUNT (DETACHABLE)
MICROSCOPE MOUNT
COLD CATHODE GRID (2)
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REMOVABLE LIGHT BAFFLE
/rag
SUPPORT BASE' 13 WIRE POWER CORD
Approwil-FORgeWaPe ~WWI 1eataPina44YLatc13000030002-4
TILTING ARM (2)
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2.2 ILLUMINATION SYSTEM
2.2.1 Light Sources
The light sources proposed byill be two 5" wide x
6" deep viewing surfaces direc , y a jacent to each other for ideal
usage as a larger single viewing surface. The two light sources
will be high intensity, cold cathode grids. These grids are inter-
changeable, are not potted or encapsulated and are easily replaced
by relatively unskilled personnel using a minimum of the common
?hand tools. Although the cost of these high intensity, cold cathode
grids is considerably greater than that of the standard fluorescent
tubes, the advantages obtained result in far greater overall value.
These advantages are:
Service life of 10,000 hours
No deterioration from frequent on-off cycling
ge, Minimum height can be realized for table top
utilization
tool
MN1 Simpler wiring and circuitry, therefore much
greater reliability and down time
Assurance that illumination is always even and
uniform since perimeter grid can be made closer
With individual tubes there is no guarantee that
they will age uniformly, they deteriorate more
rapidly with on-off operation and when a tube is
replaced, it will be much brighter than the others
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is proposing a maximum intensity for each light source,
. -lamberts rather than the specified level of not less
than 1500 ft. -lamberts measured at the working surface. The
reason for proposing this greater light level is to ensure that the
to ultimate purpose of this light table is achieved. When viewing
photography under magnification the need for illumination increases
significantly as the magnification is increased. This is of particular
importance if small scale, high resolution photography is being
viewed.
wig The light sources will be sufficiently diffused such that the variation
in intensity will not exceed ? 5% as the working surface is scanned
along a line which is perpendicular to the light grids. The temper-
ature of the light table will not rise more than 15?F after extended
use (6 - 8 hours). The air vents will be baffled to prevent light from
shining into the operator's eyes or the eyes of anyone in proximity.
The total viewing area will be approximately 10" wide x 6" deep. The
diffuser will be a single piece of opal plastic and the stage will be a
single piece of glass. As shown in Figure 2-1, the light baffle, which
separates the two grids and prevents light from spilling between the
two grid areas, is easily removable. The upper, or working, surface
of the glass stage protrudes above the surrounding area by at least
1/16". The metal surface immediately surrounding the viewing stage
has four holes, two on each side, for the insertion of the B. & L.
?11 Zoom 70 spring stage clips.
2. 2. 2 Viewing Light Controls
Another advantage available with the proposed cold cathode grid viewing
light sources is the highly reliable dimming control which can vary the
brightness over the entire range without any flickering, as usually
occurs with standard fluorescent lamps, particularly at the reduced
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STATINTL light levels. The dimmer control which has used success-
fully in many other applications, see Section , u ilizes a Variac
auto-transformer which varies the input voltage (110 VAC) to the
high voltage power supply used with these viewing lights. As shown
in Figure 2-1, two separate dimming or brightness controls as well
as two separate on-off controls are provided on the top surface since
the imagery to be stereoviewed might be of different densities and the
stereo fusing is easier done when the imagery is presented on a
comparable image brightness basis.
Each dimming control will vary the intensity of its light source from
100 to 2,000 ft. -lamberts, twice the specified range, without notice-
able flicker at any level of intensity. The two independent controls
are conveniently located at the rear of the light table within comfortable
reach of the operator from the front, yet not interfering with any of the
viewing functions. The separate on-off switches will incorporate built
in lamps which indicate when the light source has been turned on and
the switch button will be suitably engraved.
The light table will operate on a nominal 115 volt, 50-60 cps supply,
and will use approximately 200 watts of power. The light table will
be equipped with a 3-wire power cord, not less than six feet long,
terminated at one end with a "Deflex" Safety Power Connector (made
by the APM-Hexseal Corporation, 41 Honeck Street, Englewood,
New Jersey), or its equivalent. The other end shall be terminated
within the light table and shall be securely mounted to the frame of the
light table. The third (ground) conductor in the power cord shall be
grounded to the metal frame of the light table.
2.3 TILTING MECHANISM
The light table with the stereoscope attached, is capable of being tilted
about an axis along the front of the light table as shown in Figure 2-1.
This tilting permits the operator to place the viewing stage in the
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horizontal position or up to a maximum angle of 450 to the hori-
zontal. However must point out the fact that the
inclination of the stereoscopts eyepieces will correspondingly
be shifted from what is normally the convenient viewing angle.
In providing the 45? of tilt considers the usage of a
ratchet and pawl, device as shown in the Design Objectives to be
a dangerous design. Accidental jarring or shock might cause
damage to the glass, light grids or optical components. A more
reliable and functional design is to use the captive slotted linkagc
shown in Figure 2-1. Not only is this mechanism positive (non-
slipping) but it also provides continuous adjustment throughout the
45? range.
2.4 MICROSCOPE MOUNT
The microscope mount shown in Figure 2-1, can be used with either
the B&I, Model II Zoom 70 Stereoscope, the Wild Model M-5 Stereo-
microscope, or by use of the clamp type adapter -- any similar
stereoscope or microscope of approximately the same size and weight.
Properly designed clamping members permit changing merely by the
use of thumb screws. The stereoscope supports and clamps are
sufficiently rigid, and sufficient mechanical advantage is provided for
tightening torques so that no play will occur after any changes in
mounting or alignment. The gross positioning is made with the
primary "Clamp-On" mount for approximate focusing with a particular,
auxiliary lens system. The rack and pinion adjustment (normally part
of the supporting arm of the stereoscope or microscope) is then used to
bring the image into sharp focus.
Alignment of the stereoscope's optical axis is maintained to within
10 minutes of arc of a right angle to the viewing stage. The require-
ment for "maintaining the alignment of the stereoscope's optical axis
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to within 10 minutes of arc of a right angle to the viewing stage" is
more critical than it appears to be. The provisions to be made for
providing this degree of alignment, regardless of the type of stereo-
scope or microscope in use, must utilize the optical axis itself.
If precision levels were considered as the means for determining
alignment, it would be necessary to have a mounting surface on the
instrument which maintains some precise geometry to the optical
axis. The standard B&L Zoom 70 Stereoscope and the standard
Wild M-5 Stereomicroscope do not have this feature. Therefore,
proposes that an "Alignment Reticle" be used in conjunction
with continuously variable adjustments in X and Y for providing this
degree of alignment. The alignment reticle is a standard glass reticle
consisting of a series of precise concentric circles. By viewing this
reticle through the specific stereoscope to be used at its highest
magnification a determination of the preciseness of the alignment of
the optical axis to the stage can be made. At high magnification, the
depth of field (focus) becomes extremely short. By observing the
sharpness of the extremes of the reticle with respect to the sharpness
of the center of the reticle, the degree of alignment is determined. The
instrument's alignment will have been attained when the entire reticle
appears in sharp focus. A reticle is proposed because it has the high
contrast and resolution as well as sharp features which facilitate
focusing capability and subsequently, alignment capability.
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SECTION 3
OPTIONAL FEATURES
The Twin Light Source Stereoscope Light Table was designed in
accordance with the Design Objectives, dated 10 September 1964.
However, wherever practicable, the design and layout of compon-
ents was made so that present proposed light table can be easily
modified to increase its operational capability. The salient
features which can be added to the light table with a minimum of
modification are as follows:
3.1 MOTORIZED FILM DRIVE
bit In addition to providing the capability for mounting Richards Corp.
STATINTL dual reel brackets, Model T-2-5 at a later date an
easily implement the incorporation of motorized turn winding and
rewinding. This added capability for efficiently utilizing roll film
merely involves the addition of a compact reversible variable speed
drive system which is easily incorporated within the present con-
figuration. Slew speeds of up to 300 f.p.m. are easily attainable
using standardi Ideveloped film drives.
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3.2 FILM FOOTAGE COUNTING
If roll film is used it becomes important for the P.I. to accurately
locate the specific frames he is to stereoview. can easily
implement in the future 4 digit film footage counters whichwill also
provide high accuracy and readout to 0.5 ft. This capability of
accurate film footage or frame counting and recovery has proven to
be very desirable in detailed photo interpretation work. Essentially,
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the film footage count would be established by a precisely ground
metering roller of 1.9099" so that 1 revolution meters 6" (0.50 ft.)
of film. A cam is coupled to this metering roller which activates
a switch so that one revolution or count, corresponds to 0.50 ft.
wig Since the counting is digital, the maximum error that would be
attributable to the mechanical portion of film footage counting is
only 1 count or 0.5 ft. With properly designed film transport
ord systems having dynamic braking and excellent reversibility char-
acteristics, the slippage of the capstan or pressure roller drive
can be considered to be negligible. Therefore, the most significant
factor affecting the accuracy of film footage counting is the precise-
ness of the ground metering roller. Since rollers can easily be
ground to within tolerances of E 0.001", the maximum error could
be 0.003" of film per revolution (6 inches of film) or 0.006" of film
per foot. Therefore, an accuracy of essentially 1/2" of film per
100 ft. could be maintained with zero film slippage.
3.3 FILM FLATTENING
For most efficient stereoviewing, particularly under reasonable
magnifications, the two images must be fixed in the same viewing
plane. Various means exist for obtaining film flatness, the simplest
assi of which is to sandwich the film between the glass stage and glass
plates. However, care must be exercised while stereoviewing so as
not to jar the final positioning of the film which resulted in the fused
imagery. By building these glass flattening plates into the light table
structure, the likelihood of accidentally shifting the film after the
imagery has been positioned and fused is eliminated. The glass
platens would be hinged so that they can easily be retracted when
not required.
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3.4 SLACK LOOP PROVISION
When photographs are inseparably contained on their supporting
media (film or paper) in fixed relationship to each other as nega-
tives (or contact prints) on uncut rolls of film (or paper), no
possibility exists to place physically the corresponding image into
the correct position as required for stereo perception.
By utilizing the space between the two light sources to form a
slack loop capable of accumulating the required amount of film,
two images which are separated by more than the Zoom 70
Stereoscope's rhomboidal separation can be stereoviewed while
in roll form.
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SECTION 4
RELEVANT EXPERIENCE
4.1 INTRODUCTION
1;: mlextensive experience in the development of Image Inter-
im Viewers is a valuable asset in the development of
this direct viewing Light Table. In addition to the development of
compact cameras, stabilized mounts and film processing units for
airborne use is continually engaged in the development
of precision equipmentor the ground based operations of film
viewing and interpretation. The exacting demands of this latter
technology have imposed on engineers a stringent discipline
which leads to a critical appraisal of design concepts and the deft
execution of the actual design and construction, Of particular signifi-
cance in developing image interpretation equipment is
recent and current experience in the development of the Image inter-
pretation Cell (IIC), wherein close field association with the various
Air Force tactical reconnaissance commands has acquainted us with
mu the "working level" P.1. requirements. The [IC was designed and
STATINTL fabricated by under Air Force Contract
AF30(602)-288Z, for the prototype, and AF30(602)-3256 for the pro-
duction systems. The IIC is a completely self-contained, deployable,
image interpretation system for the generation of forward echelon,
accurate intelligence data in the form of Flash and Immediate Photo
Interpretation Reports. The IIG was subjected to a series of mech-
anical and environmental tests which verified the soundness of the
product design and its capability for sustained operation in the
emi S TA TINTL military environment. Examples of Image Interpretation
Film Viewer developments which are closely related to this proposed
program are discussed below.
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4.2 MULTI-SENSOR VIEWER
The Multi-Sensor Viewer,
was developed by
for
integrated interpretation and analysis of multi-sensor data.
The MSV, see Figure 4-1, provides simultaneous direct viewing of
70mm to 9-1/2 inch film at four stations. Hard copy print repro-
duction under normal room light conditions and full mensuration
capability, with digital readout, is provided at all four film stations.
Stereo viewing with zoom magnification is provided at the two
horizontal stations with a slack loop drive on the first station
(panoramic channel) for points up to 72" apart. In addition, the
TTR projection viewer located on top, enables viewing of 70 X
100 mm film chips at 4X magnification for comparison viewing.
The operator may display at random any one of 100 chips contained
in a removable magazine. Ten extra chip magazines, each con-
taining 100 chip holders are stored within the MSV.
SPECIFICATIONS
Dimensions (inches):
Weight (pounds):
Power Requirements:
74w x 73h x 40 d (nominal)
1150 (approximate)
120/208 VAC, 400 cps, 3 phase,
2200 watts.
120 VAC, 60 cps, single phase,
300 watts.
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Film Capacity:
Viewing Surfaces:
70mm rolls up to 1000 ft.
(all stations)
5 inch rolls up to 1000 ft.
(all stations)
9 inch rolls up to 1000 ft.
(frame station only)
70 x 100 ram chips - 100 per
magazine (TTR viewer)
9-1/2 x 27 inches (frame station)
5-1/2 x 27 inches (SLR and IR
stations)
5-1/2 x 12 inches (two at panoramic
station)
Viewing Surface Illumination: Cold Cathode - Adjustable
Brightness 40-1000 ft. -lamberts
Vacuum System: Provided for each viewing surface
Printing: 3 stations with 5 x 9-1/2 inches
1 station with 9-1/2 x 9-1/2 inches
Print Exposure:
Processing Time:
Film Drive Velocity:
1 to 5 seconds
15 seconds
Each station independently adjustable
up to 150 FPM, option of individual
or ganged drive with 2% accuracy.
Reversible individual and master
speed control
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Film Capacity:
Viewing Surfaces:
70mm rolls up to 1000 ft.
(all stations)
5 inch rolls up to 1000 ft.
(all stations)
9 inch rolls up to 1000 ft.
(frame station only)
70 x 100 ram chips - 100 per
magazine (TTR viewer)
9-1/2 x 27 inches (frame station)
5-1/2 x 27 inches (SLR and IR
stations)
5-1/2 x 12 inches (two at panoramic
station)
Viewing Surface Illumination: Cold Cathode - Adjustable
Brightness 40-1000 ft. -lamberts
Vacuum System: Provided for each viewing surface
Printing: 3 stations with 5 x 9-1/2 inches
1 station with 9-1/2 x 9-1/2 inches
Print Exposure:
Processing Time:
Film Drive Velocity:
1 to 5 seconds
15 seconds
Each station independently adjustable
up to 150 FPM, option of individual
or ganged drive with 2% accuracy.
Reversible individual and master
speed control
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FIGURE 4-2.
App
HINGED VIEWING SCREEN -
AND PAPER HOLDER (9" X9")
FLUORESCENT
LIGHT TABLE
PRINT PROCESSOR
IVIEWER/PRINTER
roved Fo
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Illumination for the light table consists of three fluorescent tubes
with a translucent diffusion panel as a viewing surface. A 300 watt
projection type filament lamp, used with double condensing lenses
and an f/4.5 projection lens, provides illumination for imaging the
negative on the 9" x 9" viewing screen.
The print processor is motor driven, and has a removable roller
assembly. Processing solutions (developer and stabilizer) are in
32 oz. flexible plastic bottles (for durability and light weight).
The purpose of thel riewer/Printer is to provide a convenient
means for--
(a) viewing 5 inch wide aerial negatives in roll form
on an illuminated light table.
(b) viewing a 2X enlarged image of each 4-1/2" by
4-1/2" negative, or similar section of a panoramic
negative, on a 9" x 9" rear projection screen.
(c) obtaining 9" x 9" positive enlargements of each
negative (or stereo pairs) on photographic paper
under subdued room light (no darkroom necessary).
4.4 IIC LIGHT TABLE
The Image Interpretation Cell Light Table served as a detailed inter-
pretation station to supplement the activities of the MSV and to provide
a working area for detailed interpretation and analysis. As shown in
Figure 4-3, it provides direct or stereoscopic viewing of positive or
negative film from 70mm to 9-1/2" in width and up to 1000 ft. capacity
rolls. The film is secured to the light table by'a vacuum hold down
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system for mensuration or viewing under magnification. A carriage
and rails are provided to provide movement in the X and Y direction
of the stereoscopes over the 10" x 39" viewing surface.
The Light Source - two argon-mercury grids of serpentine pattern -
is embedded in an optically clear, elastomer matrix for protection
against mechanical shock and humidity damage. This source will
provide diffused "cold" light of a maximum intensity of at least 1200
ft. -lamberts at 70?F. "Cole light refers to the low heat output of
the grid, a 15?F temperature rise over a 4 hour period. Uniform
diffusion is accomplished by mounting the plastic diffuser at the
correct distance from the grids.
The film under observation can be held securely to the glass top if
desired. The top contains front and rear vacuum grooves which are
connected to silicone rubber vacuum manifold tubes connecting to the
outer edges of the glass top.
When 9-1/2" wide film is being used, the vacuum is applied to both
manifolds. For 70mm and 5" wide film, the vacuum is only applied
to the front groove, which is covered by the film.
The film reels are held between brackets attached to the table in either
the left or right T-rails. Each table is supplied with two sets of Reel
Brackets, each set consisting of one crank and one idler bracket. The
machine will accommodate single reels of any size from 70mm to
9-1/2" in width up to 1,000 feet capacity. The brackets are equipped
with drag brakes, cam operated spindle retractors and full ball bearing
suspension in all instances. Segmented nylon rollers at each end of the
table provide scratch-free film support. The cranks provide a pivoting
detent of the handle so that it can be rotated out of the way when not in
use.
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SECTION 5
PROGRAM SCHEDULE
The program schedule, as shown in Figure 5-1, will include
sufficient time for study, investigation and analysis of the pro-
duct design configuration finalized at the completion of the
first month. Complete and accurate layouts will establish the
design parameters and interfaces. All major components and
subsystems, optical, mechanical and electrical, will have been
selected and specified. Human engineering factors will be thor-
oughly explored and all operating functions will be checked out.
The long lead items, controls, structures and viewing lights
will be ordered and detailing will commence in full.
Reproducible manufacturing drawings and specifications will be
delivered as shown in Figure 5-1, one week after delivery of
the Twin Light Source Stereoscope Light Table.
5-1
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ON
SECTION 6
QUALITY ASSURANCE AND RELIABILITY
6.1 INTRODUCTION
The Quality Assurance and Reliability functions a
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awl
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are
in.ese Depart-
ments report to the Cieneral Manager. The degree of responsibility
exercised by each with regard to the coverage in these areas de-
pends on the nature of the program. In the case of a developmental
type of program where the quantities of equipments are very limited,
the primary responsibility for both Quality Assurance and Reliability
rests with the Engineering Department. As the quantities increase
and the requirements and methods become more firmly established,
the responsibility shifts to the Quality Control Department. This
section describes the proposed procedure which will be used as a
guide in the case of this Twin Light Stereoscope Light Table.
The Quality Control program at ow in effect on existing
projects is in compliance with . The procedures em-
ployed are under the surveillance of the resident Air Force inspector.
\,ihe rogram at now in
effect on existing projec ?s is in compliance with MI . The
reliability organization is shown in Figure 6-1, and its
functions are noted in Figure 6-2.
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