Impor tant Export Res trictions ! Co mmodities, produ cts, technologi es and ser vices of thi s manu al are contro lled by the U.S.
Depar tment o f State Oce of D efense Trade Controls, in accordance with International Trac in Arms (ITAR), Title 22, Code of
Federal Regulati ons Part 120-130 and/or by the Expor t Administration Re gulations (EAR) of U.S. Depar tment of Commerce. At any
time whe n a license or a wri tten approval o f the U.S. Govern ment
is app licable to it, it i s illegal and stric tly forbidd en to exp ort, intend to export, tr ansfer in any other manner w hatsoever, sel l any
hardwar e or technical da ta, provide any a ssociated ser vice to any
non-U. S. r esident, beyond or within the United States territory,
until th e valid lice nse or writ ten approval has been i ssued by the
Depar tments of th e U.S. Gover nment h aving j urisdiction . Addi tionall y U.S. law prohibits the sale, transfer, o r export of items to
certai n restri cted parties, des tinations, and embar goed countries,
as iden tied on lis ts maintaine d by the U.S . Departm ent of State,
the U.S. Department of Commerce, and t he U.S. Depar tment of
Treasury. It i s the responsib ility of the Customer to be aw are of
these lis ts. The sale, tran sfer, transport ation, or shipme nt outside of the U.S. of any product prohibited o r restricte d for expor t
without complying with U. S. export c ontrol laws and re gulations,
includin g prope r expor t licen sing, do cumentation or au thorization, is unlaw ful and may result in civil and/or cr iminal pen alties
and/or constitute a fe deral cri me. Diver sion cont rary to U.S. law
is stric tly prohibited .
2
SAFETY SUMMARY
Before operating this product, carefully read and study this Operation and Maintenance Manual.
The PVS-14 and 6015 is a precision electron-optical instrument, and requires careful handling. To avoid
damage to the equipment or physical harm to the user when operating the PVS-14 and 6015, follow all
WARNINGS, CAUTIONS and NOTES.
Below you will nd denitions of the following alerts that appear throughout this Manual:
WARN ING — Identies a clear danger to the person operating the equipment.
CAUTION – Identies risk of damage to the equipment.
NOTE – Serves to highlight essential procedures, conditions, and statements, or convey important in-
structional data to the user.
WARNING:
This product contains natural rubber latex which may cause allergic reactions! The FDA
has reported an increase in the number of deaths that are associated with an apparent sensitivity to natural latex proteins. If you are allergic to latex, it is a good idea to learn which products
contain it and strictly avoid exposure to those products.
WARNINGS:
Toxic Material
The image intensier’s phosphor screen contains toxic materials.
• If an image intensier breaks, be extremely careful to avoid inhaling the phosphor screen
material. Do not allow the material to come in contact with the mouth or open wounds on the
skin.
• If the phosphor screen material contacts your skin, wash it o immediately with soap and
water.
• If you inhale/swallow any phosphor screen material, drink a lot of water, induce vomiting, and
seek medical attention as soon as possible.
WARNINGS:
• The monocular will not be turned o automatically when ipped up. The monocular must be
turned o by the power switch.
• The compass illuminator can be seen by others using night vision devices.
• Do not use contaminated eyecup or eyeguard. They must be replaced.
• When installing the headmount over the protective mask, be careful not to break the protec-
2.2.1 Equipment Characteristics, Capabilities, and Features 13
2.2.2 Location and Description of Major Components 13
2.2.3 Equipment Data 16
2.3 Principles of Operation 17
2.3.1 Mechanical Functions 17
2.3.2 Optical Functions 17
2.3.3 Electronic Circuit Function 18
3. OPERATING INSTRUCTIONS 19
3.1 Description and Use of Operator’s controls and indicators 19
3.1.1 Operator Controls and Indicators 19
3.2 Preventive Maintenance Checks and Service s (PMCS) 21
3.2.1 Preventive Maintenance Checks and Services 21
3.2.2 Resolution Check Using the TS-4348/UV Test Set 25
3.2.3. Inspection Criteria for Proper Image Intensier Operation 27
3.3 General Information 30
3.3.1 Unpacking 30
3.3.2 Installation of Batter y 30
3.3.3 Installation of Eyecup Or Eyeguard 31
3.3.4 Installation of Demist Shield 31
3.3.5 Installation of Sacricial Window 32
3.3.6 Installation and Adjustment of Headmount 32
3.3.7 Installation of Headmount/Helmet Mount Adapter 33
3.3.8 Installation of Helmet Mount to Helmet 33
3.3.9.Installation of Headmount with Protective Mask 34
5
3.3.10 Installation of Weapon Mount 35
3.3.11 Installation of Compass Caution 36
3.3.12 Installation of 3x Magnier 37
3.4 Operating Procedures 37
3.4.1 Hand-Held Operation 37
3.4.2 Head Mounted Operation 38
3.4.3 Helmet Mounted Operation 39
3.4.4 Weapon Mounted Operation 41
3.4.5 IR Source Operations 41
3.4.6 Operation with Compass 41
3.4.7 Operation with 3x Magnier 43
3.4.8 Operation with Gain Control 43
3.4.9 Preparation for Storage 43
3.5 Operation under Unusual Condition 44
3.5.1 Operation in Dusty or Sandy Areas 44
3.5.2 Operation in Rainy or Humid Conditions 44
3.5.3 Operation in Salt Water Areas 44
3.5.4 Operation in Nuclear, Biological and Chemical (NBC) Environments 44
4. MAINTENANCE INSTRUCTIONS 45
4.1 Lubrication Instructions 45
4.2 Troubleshooting Procedures 45
4.2.1. Troubleshooting 45
4.3. Operator ’s Maintenance Procedures 46
4.3.1 Cleaning the MUNVM 46
4.3.2 Headmount Maintenance 47
4.3.3 Neck Cord Maintenance 48
4.4 Service/Packing and Unpacking 48
4.4.1 Return Instructions 48
APPENDIX 49
A. Components of End Item (COEI) and Basic Issue Items (BII) Lists 49
B. Additional Authorization List (AAL) 51
C. Expendable and Durable Items List 52
D. Product Warranty Registration Card 53
Alphabetical Index 55
LIST OF FIGURES
FIGURE TITLE PAGE
2-1. Components of NVMPS 14
2-2. 3X Magnier and Compass for PVS-14/6015 14
2-3. Shipping and storage cases for PVS-14/6015 15
2-4. Multi-Use Night Vision Monocular 15
2-5. Mechanical Functions for the NVMPS 17
2-6. Optical Function Diagram 17
3-1. Monocular Controls and Indicators 19
3-2. TS-4348/UV Test Set Pattern 26
3-3. Shading 27
3-4. Edge Glow 28
3-5. Bright Spots and Emission Points 28
3-6. Fixed-Pattern Noise 29
3-7. Chicken Wire 29
3-8. Battery, Eyecup and Eyeguard Installation 31
3-9. MUNVM Headmount Adjustments 32
3-10. Headmount/Helmet Mount Adapter Installation 33
3-11. Installation of Helmet Mount 34
3-12. Helmet Mount 34
3-13. Reassembly of Helmet Mount 34
3-14. Weapon Mount Usage 35
3-15. Locating the Magnet 36
3-16. Compass Installation 36
3-17. 3X Magnier Installation 37
3-18. 3X Magnier Installation with Focus Ring Adapter 37
3-19. Headmount/Helmet Mount Adapter Operation 38
3-20. Tilt and Flip-up Assembly Mechanisms 40
3-21. View Through Installed Compass 42
3-22. Gain Control 43
4-1. Reinstalling the Neck Pad 47
4-2. Threading the Sliding Bar Buckles 47
A-1. Components of End Item 50
HOW TO USE THIS MANUAL
USAGE
You must familiarize yourself with the entire manual before operating the equipment. Before performing any kind of maintenance on your device, read the section on maintenance in its entirety. Follow all
WARNINGS, CAUTIONS, and NOTES.
MANUAL OVERVIEW
This manual contains sections on Operating and Maintaining the PVS-14 or 6015 Night Vision Monocular.
The Components of End Item (COEI) and Basic Issue Items (BII) Lists can be found in Appendix A.
TheAdditional Authorization List (AAL) can be found in Appendix B.
The Expendable and Durable Items List can be found in Appendix C.
The Product Warranty Registration Card can be found in Appendix D.
6
7
1
INTRODUCTION
1.1 GENERAL INFORMATION
1.1.1 TYPE OF MANUAL
Operation and Maintenance.
1.1.2 MODEL NUMBER AND EQUIPMENT NAME
PVS-14 Multi-Use Night Vision Monocular.
6015 Multi-Use Night Vision Monocular.
1.1.3 PURPOSE OF EQUIPMENT
To provide the operator with the ability to observe at night under moonlight and starlight conditions.
The PVS-14 or 6015 can be used as a handheld, head-mounted, helmet-mounted or weapon-mounted
device to allow walking, weapon ring, short-range surveillance, map reading, vehicle maintenance,
and administering of rst aid.
Recommendations from the user for improvements to the device are encouraged.
Mail your comments to Armasight Inc., 815 Dubuque Avenue, South San Francisco, CA 94080, USA.
Or, send an email to info@armasight.com.
8
1.2 WARRANTY INFORMATION AND REGISTRATION
1.2.1 WARRANTY INFORMATION
This product is guaranteed to be free from manufacturing defects in material and workmanship under
normal use for a period of two (2) years from the date of purchase. In the event that a defect covered
by the below warranty occurs during the applicable period stated above, Armasight, at its discretion,
will either repair or replace the product; such action on the part of Armasight shall be the full extent of
Armasight’s liability, and the Customer’s sole and exclusive reparation. This warranty does not cover a
product if it has (a) been used in ways other than its normal and customar y manner; (b) subjected to
misuse; (c) subjected to alterations, modications or repairs by the Customer of by any party other than
Armasight without prior written consent of Armasight; (d) special order or “close-out” merchandise
or merchandise sold “as-is” by either Armasight or the Armasight dealer; or (e) merchandise that has
been discontinued by the manufacturer and either parts or replacement units are not available due to
reasons beyond the control of Armasight. Armasight shall not be responsible for any defects or damage that in Armasight’s view are a result from the mishandling, abuse, misuse, improper storage or
improper operation of the device, including use in conjunction with equipment that is electrically or
mechanically incompatible with, or of inferior quality to, the product, as well as failure to maintain the
environmental conditions specied by the manufacturer. CUSTOMER IS HEREBY NOTIFIED THAT OPERATION OF THE EQUIPMENT DURING DAYLIGHT HOURS OR UNDER ANY EXCESSIVE LIGHT CONDITIONS
MAY PERMANENTLY DAMAGE THE INTERNAL COMPONENTS OF THE UNIT AND SAID DAMAGE WILL
NOT BE COVERED UNDER THIS WARRANTY. This warranty is extended only to the original purchaser.
Any breach of this warranty shall be enforced unless the customer noties Armasight at the address
noted below within the applicable warranty period.
The customer understands and agrees that except for the foregoing warranty, no other warranties
written or oral, statutory, expressed or implied, including any implied warranty of merchantability or
tness for a particular purpose, shall apply to the product. All such implied warranties are hereby and
expressly disclaimed.
1.2.2 LIMITATION OF LIABILITY
Armasight will not be liable for any claims, actions, suits, proceedings, costs, expenses, damages or
liabilities arising out of the use of this product. Operation and use of the product are the sole responsibility of the Customer. Armasight’s sole undertaking is limited to providing the products and services
outlined herein in accordance with the terms and conditions of this Agreement. The provision of products sold and services performed by Armasight to the Customer shall not be interpreted, construed,
or regarded, either expressly or implied, as being for the benet of or creating any obligation toward
any third party of legal entity outside Armasight and the Customer; Armasight’s obligations under this
Agreement extend solely to the Customer. Armasight’s liability hereunder for damages, regardless of
the form or action, shall not exceed the fees or other charges paid to Armasight by the customer or
customer’s dealer. Armasight shall not, in any event, be liable for special, indirect, incidental, or consequential damages, including, but not limited to, lost income, lost revenue, or lost prot, whether such
damages were foreseeable or not at the time of purchase, and whether or not such damages arise
out of a breach of warranty, a breach of agreement, negligence, strict liability or any other theory of
liability.
1.2.3 PRODUCT WARRANTY REGISTRATION
In order to validate the warranty on your product, Armasight must receive a completed Product Warranty Registration Card for each unit, or the Customer can complete a warranty registration on our
website, at www.armasight.com. Please complete the included form (Appendix D) and immediately
mail it to our Service Center:
Armasight Inc.
815 Dubuque Avenue
South San Francisco
CA 94080
United States of America.
9
1.2.4 OBTAINING WARRANTY SERVICE
To obtain warranty service on your unit, the End-user (Customer) must notif y the Armasight service
department via email. Send any requests to ser vice@armasight.com to receive a Return Merchandise
Authorization number (RMA). When returning any device, please take in the product to your retailer, or
send the product, postage paid and with a copy of your sales receipt, to Armasight Corporation’s service center at the address listed above. All merchandise must be fully insured with the correct postage;
Armasight will not be responsible for improper postage or merchandise that becomes lost or damaged
during shipment. When sending product back, please clearly write the RMA# on the outside of the
shipping box. Please include a letter that indicates your RMA#, the Customer’s Name, a Return Address,
reason for the return, Contact information (valid telephone numbers and/or an e-mail address), and
proof of purchase that will help us to establish the valid start date of the warranty. Product merchandise returns that do not have an RMA# listed may be refused, or a signicant delay in processing may
occur. Estimated Warranty service time is 10-20 business days. The End-user/ Customer is responsible
for postage to Armasight for warranty service. Armasight will cover return postage/ shipping after warranty repair to the End-user/ Customer only if the product is covered by the aforementioned warranty.
Armasight will return the product after warranty service by domestic UPS Ground service and/ or domestic mail. Should any other requested, required or international shipping methods be necessary, the
postage/ shipping fee will be the responsibility of the End-user/ Customer.
1.3 CROSS REFERENCES
COMMON NAME OFFICIAL NAME
Allen Wrench Socket Head Screw Key
Battery Compartment Battery Box Cover
Shipping Case Textile Bag
Cotton Swab Disposable Applicator
Neoprene Jack Plug Plug Assembly
O-Ring Gasket
Safety Screw Electrical Dial-Knob Lock
Pattern Generator Optical Instrument Reticle
Lens Covers Exit Port Covers
Paddle Switch Remote Cable Switch
Batteries AA
Technical Manual Operator and Field Maintenance Manual
Tape Fastener Loop Fastener, Loop Tape
Tape Fastener Hook Fastener, Hook Tape
10
1.4 LIST OF ABBREVIATIONS
AAL Additional Authorization List
BII Basic Issue Items
CAGEC Commercial and Government Entity Code
cm Centimeters
COEI Components of End Item
CPC Corrosion Prevention and ControlCTA Common Table of AllowancesDA Department of the Army
EIC End Item Code
EIR Equipment Improvement Recommendation
FM Field Manual
Hrs Hours
IR Infrared
JTA Joint Table of Allowances
lbs Pounds
LED Light Emitting Diode
MUNVM Multi-Use Night Vision Monocular
NVMPS Night Vision Multi-Purpose System
MTOE Modied Table of Organization and EquipmentN/A Not Applicable
NBC Nuclear, Biological, and Chemical
NSN National Stock Number
Pam Pamphlet
PASGT Personal Armor System Ground Troops
PMCS Preventive Maintenance Checks and Services
Qty Quantity
Recm Recommended
Rqr Required
SF Standard Form
TDA Table of Distribution and AllowancesTM Technical Manual
TOE Table of Organization and EquipmentU/M Unit of Measure
Vdc Volts, direct current
11
1.5 GLOSSARY
BLACK SPOTS. These are cosmetic blemishes in the image intensier of the MUNVM or dirt or debris
between the lenses.
BRIGHT SPOTS. These defects can appear in the image area of the MUNVM. This condition is caused by
a aw in the lm on the microchannel plate. A bright spot is a small, nonuniform, bright area that may
icker or appear constant. Bright spots usually go away when the light is blocked out and are cosmetic
blemishes that are signal induced.
BROWPADS. Three hook-and-pile browpads are provided to adjust the headmount to t dierent
head sizes. The thin browpad (large head) comes attached to the headmount and the thick (small head)
or medium browpads are stored in the carrying case.
CAUTION. Condition, practices, or procedures that must be observed to avoid damage to equipment,
destruction of equipment, or a long-term health hazard.
CHICKEN WIRE. An irregular pattern of dark thin lines in the eld-of-view either throughout the image
area or in parts of the image area. Under the worst case condition, these lines will form hexagonal or
square-wave shaped lines.
DARK (OR DARK AREA). A place in which there is ver y little light. It does not mean total darkness.
Generally, this means conditions similar to a quarter-moon or starlit night.
DARK-ADAPTED. Having ones eye adjusted to the monocular’s output under low light conditions.
DIOPTER. A unit of measure used to dene eye correction. Adjustments to the diopter adjustment will
provide a clearer image in each eye.
EDGE GLOW. This is a defect in the image area of the monocular. Edge glow is a bright area (sometimes
sparkling) in the outer portion of the viewing area.
EMISSION POINT. A steady or uctuating pinpoint of bright light in the image area and does not go
away when all light is blocked from the objective lens of the monocular. The position of an emission
point within the image area of the monocular does not move. An emission point should not be confused with a point light source in the distance.
FIXED-PATTERN NOISE. This is a cosmetic blemish in the image area characterized by a faint hexagonal (honeycomb) pattern throughout the viewing area that most often occurs at high light levels or
when viewing very bright lights. Fixed-pattern noise is inherent in the structure of the ber optics and
can be seen in every image intensier if the light level is high enough.
FLASHING. This is a defect in the image area of the monocular. The image appears to icker or ash.
FLICKERING. See “ashing.”
GAIN. This is the number of times a night vision device amplies light input.
IMAGE INTENSIFIER. An electro-optical device that detects and amplies ambient light to produce a
visual image.
INFINITY FOCUS. Adjustment of the objective lens so that a distant object, such as a star or the point
light on a distant tower, forms the sharpest image.
INTERMITTENT OPERATION. This is a defect in the image area of the monocular. See “ashing”.
IR SOURCE. This is an IR Light Emitting Diode (LED). When turned on, the IR source provides additional
illumination to enhance existing light conditions used only for performing nearby tasks.
MICROCHANNEL PLATE. A current-multiplying optical disk that intensies the electron image pro duced by the photocathode.
NOTE. Essential information of special importance, interest, or aid in job performance.
PHOTOCATHODE. The input optic of an image intensier that absorbs light energy and in turn re-
leases electrical energy in the form of an electron image.
SCINTILLATION. A faint, random, sparkling eect throughout the image area. Scintillation is a normal
characteristic of the image intensier and should not be confused with emission points. Scintillation is
more pronounced under low light conditions. Also called “video noise”.
SHADING. The viewed image should be a full circle. If shading is present, you will not see a fully circular
image. Shading is indicative of a dying photocathode and is caused by a defective vacuum seal of the
image intensier. Shading is very dark and you cannot see an image through it.
WARNING. Conditions, practices, or procedures that must be observed to avoid personal injury or loss
of life.
12
13
2
DESCRIPTION AND DATA
2.1 EQUIPMENT DESCRIPTION
2.2.1. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES
The PVS-14/6015 is a hand-held, headmounted, helmet mounted, or weapon mounted night vision system that enables walking, weapon ring, short-range surveillance, map reading, vehicle maintenance,
and administering rst aid in both moonlight and starlight. Each unit allows for vertical adjustment (by
using head strap), fore-and-aft adjustment, objective lens focus and eyepiece focus. The monocular is
also equipped with an IR source and a low battery indicator. The PVS-14 model equipped with a manual
gain control.
2.2.2. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS
The NVMPS includes the items shown in Figures 1-1, 1-2, 1-3. The major components are the headmount, helmet mount, monocular, carrying case, and the shipping and storage case.
a. Monocular
The monocular (see Figure 2-4) consists of various components such as an objective lens, an image
intensier (not shown), an eyepiece lens and a battery cap.
The monocular also uses the accessories listed below:
Demist Shield – The demist shield (Figure 2-1) is used to prevent the eyepiece lenses from becoming fogged.
Sacricial Window – A replaceable sacricial window (Figure 2-1) is supplied to protect the objective lens during operation in adverse conditions.
Compass – The compass (Figure 2-2) enables the operator to see azimuth readings in the monocular.
Tethering Cord – The tethering cord (Figure 2-1) enables the user to attach the compass or 3X magnier to a button hole or belt loop to guard against dropping orlosing these items.
3X Magnier – (Additional Authorized Item) The 3Xmagnier (Figure 2-2) is a lens assembly which
can be added to the monocular to extend the operator’s observation ranges.
b. Headmount
The headmount (Figure 2-1) secures the monocular to the operator’s head for night viewing and provides freehand support for use with a weapon, protective mask or other purposes. It is adjustable and
cushioned. The thin browpad used for large heads, comes attached to the headmount; the thick and
medium browpads, used for smaller heads are stored in the carrying case.
14
HEAD/HE LMET MOUNT
ADAPTER
TETHE RING
CORD
THIN BRO WPAD
HEADMOUNT
WEAPON M OUNT
BATTERY CAR-TRIDGE
NECK CORD
OBJEC TIVE
LENS CAP
HELME T MOUNT
CARRYI NG CASE
DEMIST
EYEGUA RD
SHIELD
SACRIFICIAL
WINDOW
BAT TER Y
MONOCULAR
Figure 2-1. Components of NVMPS
COMPASS
MEDIUM A ND
THICK BR OWPADS
OPERATOR’S
MANUAL
LENS PAPER
CARRYI NG CASE
STRAP
3X MAGNIFIE R
(ADDIT IONAL ITEM)
Figure 2-2. 3X Magnier and Compass for PVS-14/6015
15
(SEE FIGUR E 2-1. FOR DETAIL S)
SHIPPING
AND
STORAG E
CASE
Figure 2-3. Shipping and storage cases for PVS-14/6015
EYEPIECE
LENS
OBJECTIVE
LENS
POWER
SWITCH
BAT TER Y
CAP
GAIN
CONTROL
Figure 2-4. Multi-Use Night Vision Monocular
c. Helmet Mount
This item (Figure 2-1), secures the monocular to the Personal Armor System Ground Troops (PASGT)
helmet allowing freehand support for use with a weapon, protective mask and/or other purposes. The
new helmet mount is made of a ruggedized metal. The old one is made of plastic.
d. Headmount/Helmet Mount Adapter
This item (Figure 2-1) is attached to the monocular to allow its use with the headmount or helmet
mount. It allows mounting in front of the lef t or right eye.
e. Weapon Mount
The weapon mount (Figure 2-1) adapts the monocular to the receiver rail as congured for the modular
weapon system kit.
f. Carrying Case
The carrying case (Figure 2-3) is provided for transportation and protection of the monocular, headmount, battery and accessories. Two slide keepers are provided for belt attachment and three D-rings
16
for shoulder and leg strap attachment. A carrying case strap is also provided which can be attached to
the two D-rings on the back of the carrying case.
g. Shipping and Storage Case
The NVMPS is supplied in a shipping and storage case (Figure 2-3).
2.2.3. EQUIPMENT DATA
The following tables provide information pertaining to the operational, electrical, mechanical, optical,
and environmental characteristics for the monocular.
TABLE 21. OPERATOR ADJUSTMENT LIMITS
ITEMLIMITS
Diopter Focus+2 to –6 diopters
Objective Focus25 cm to innity
TABLE 22. ELECTRICAL DATA
ITEMDATA
Power SourceBattery (1.5 Vdc max ea.)
Battery Requirements1 AA Alkaline or 1 AA 1.5 Vdc Lithium L91
TABLE 23. MECHANICAL DATA
ITEMCHARACTERISTICS
Shipping and Storage CaseSize: Approx.14” X 9.5” X 8” Weight: 2.4 lbs.
Carrying CaseSize: Approx. 14” X 8”
Monocular (see Note)Weight: 14 ounce
NOTE:
Weight of the monocular does not include accessories.
TABLE 24. OPTICAL DATA
ITEMDATA
Magnication1.0X (3X with 3X magnier)
Field-of-View40° (13° with 3X magnier)
Diopter Focus+2 to - 6 diopters
Objective Focus25 cm (9.8”) to innity
TABLE 25. ENVIRONMENTAL DATA
ITEMDATA
Monocular Operating Temperature-51°C to +49°C
Monocular Storage Temperature-51°C to +85°C
Illumination RequiredOvercast starlight to moonlight
17
2.3 PRINCIPLES OF OPERATION
2.3.1. MECHANICAL FUNCTIONS
The mechanical functions of the NVMPS allow for dierences in the physical features of individual operators and provide for operating the system. These functions include the power switch, eye relief adjustment, diopter adjustment, gain control, and objective focus. The mechanical controls are identied
in Figure 2-5.
DIOPTER
ADJUSTMENT
LAT CH
IR LENS
POWER
SWITCH
EYE RELI EF
ADJUSTMENT
OBJECTIVE
FOCUS
HIGH LIG HT CUT-OFF WINDO W
GAIN
CONTROL
Figure 2-5. Mechanical Functions for the NVMPS
NOTE:
The gain control is not present in 6015 or PVS-14NG model.
2.3.2 OPTICAL FUNCTIONS
The optical functions include an objective lens, image intensier and eyepiece lens (Figure 2-6). The objective lens collects light reected from the night scene by the moon, stars, or night sky, inverts the image and focuses that image on the image intensier. The image intensier converts the captured light
into a visible image and reinverts the image which can then be viewed through the eyepiece lens.
PHOTOCATHODE
OBJEC TIVE
LENS
MICROC HANNEL
PL ATE
PHOSPHO R
SCREEN
IMAGE
INTENSIFIER
Figure 2-6. Optical Function Diagram
FIBER- OPTIC
INVERTER
POWER
SUPPLY
EYEPIE CE
LENS
EYE
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