PVS-14 | L3Harris Unfilmed 24UA: HIGH FOM, Hand Select
PVS-14 | L3Harris Unfilmed 24UA: HIGH FOM, Hand Select
PVS-14 | L3Harris Unfilmed 24UA: HIGH FOM, Hand Select
PVS-14 | L3Harris Unfilmed 24UA: HIGH FOM, Hand Select
PVS-14 | L3Harris Unfilmed 24UA: HIGH FOM, Hand Select
PVS-14 | L3Harris Unfilmed 24UA: HIGH FOM, Hand Select
Apollo Gear Co.

PVS-14 | L3Harris Unfilmed 24UA: HIGH FOM, Hand Select

$4,550.00
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Shipping calculated at checkout.

SPEC KEY:

Hand-Select Night Vision includes actual specs of the tube(s) included in your night vision device as listed on the tube manufacturer's data sheet. The data sheet serves as a certificate of conformance to demonstrate that tubes meet or exceed their quality and performance standards.

For a breakdown of L3Harris' various tube options and associated minimum performance, please see our guide to Minimum Specifications and Spots. Guides discussing specs are available under the "Resources" tab

FOM = Figure of Merit

SNR = Signal to Noise (Numeric)

RES (or CR) = Center Resolution (line pairs / mm)

HALO = Halo (mm)

EBI = Equivalent Background Illumination

Provided images through the tubes are captured on a Hoffman Engineering 126A. The digital imaging process can cause slight color and brightness variations between images. White phosphor tubes appear white to the eye. Images may may not depict all cosmetic details in every lighting evironment. Every night vision device has some degree of peppering or small spots at or below .003" (the smallest countable size depicted on a data sheet).

Q: Why do some pictures look more blue vs. green? Is one better? Also, some appear to be brighter than others. 

A: Color differences are primarily caused by taking digital images of tubes and are not reflective of tube performance. Tube pictures are provided to show spots and cosmetic blemishes.  White phosphor tubes will appear white to the eye - not blue or green, though there can be very slight variation among tubes.

Q: Why do some tubes contain dark spots?

A: Spots are caused by the manufacturing process of night vision intensifier tubes. Spots aren't an indication of performance and exist in nearly every tube (though some tubes may exhibit larger spots than others). Military Spot spec tubes permit countable spots (those larger than .003") in zone 2 and zone 3 (the rings outside of the bullseye on a dart board), whereas aviation spot spec tubes only permit countable spots in zone 3 (outer periphery of the tube, furthest from center).

 L3Harris | Minimum Specifications and Spots

 

Spots

L3Harris Tubes ending with UM or UA (ex. 18UM vs. 24UA) have differing tolerances for dark spots.

  • UM (military) tubes permit spots greater than .003" (diameter) in Zone 2 and 3. Spots greater than .003" are not permitted in Zone 1.
  • UA (aviation) tubes limit spots greater than .003" to Zone 3 only. This is L3's strictest spot spec.
  • Dark spots less than or equal to .003" don't meet the threshold as a countable spot and are commonly referred to as "peppering".  

To reference the Zone regions, you can refer to the image above which shows a tube photographed on a Hoffman Engineering 126A test set. 

Military Spot Spec:

Spot Size Zone 1 Zone 2 Zone 3
(Inches) Limit Limit Limit
>.012 0 0 0
>.009 0 0 0
>.006-.009 0 1 1
>.003-.006 0 2 2
Bright Spots 0 0 0
Dark spots </= .003” are acceptable

Despite adding up to 6 total (above), L3 tubes are limited to 4 spots max

Aviation Spot Spec: 

Spot Size Zone 1 Zone 2 Zone 3
(Inches) Limit Limit Limit
>.012 0 0 0
>.009 0 0 0
>.006-.009 0 0 1
>.003-.006 0 0 2
Bright Spots 0 0 0
Dark spots </= .003” are acceptable

  

Performance

L3Harris unfilmed tubes are available with various minimum performance levels (18, 20, 22, 24).

The higher the performance series number (i.e. 20 vs. 18), the higher the minimum performance.

This performance series is then combined with a spot spec to identify the tube. For example, the 18 performance series, with unlimited FOM ("U"), and Military ("M") spot spec would be 18UM. 

Tube Model Performance summary:

18 Series (UM or UA):
  • SNR: 24.1 minimum
  • Center Resolution: 64 lp/mm minimum
  • FOM: 1540 minimum
  • Halo: 1.0 maximum
  • EBI: 2.5 maximum
20 Series (UM or UA):
  • SNR: 28 minimum
  • Center Resolution: 64 lp/mm minimum
  • FOM: 1792 minimum
  • Halo: 1.0 maximum
  • EBI: 2.5 maximum
22 Series (UM or UA):
  • SNR: 30 minimum
  • Center Resolution: 64 lp/mm minimum
  • FOM: 1920 minimum
  • Halo: 1.0 maximum
  • EBI: 2.5 maximum
24 Series (UM or UA):
  • SNR: 33.75 minimum
  • Center Resolution: 64 lp/mm minimum
  • FOM: 2160 minimum
  • Halo: 1.0 maximum
  • EBI: 2.5 maximum
1217 Tubes (Custom 24 UA,  36 SNR Min.) :
  • SNR: 36 minimum
  • Center Resolution: 64 lp/mm minimum
  • FOM: 2304 minimum (implied)
  • Halo: 1.0 maximum
  • EBI: 2.5 maximum
  • Aviation Spot Spec (Spots limited to Zone 3 only)

Other:

1610 Tubes / 2376+ FOM models of PVS-31A, BNVD 1531:
  • SNR: 33 minimum
  • FOM: 2376 minimum
  • Center Resolution: 72 lp/mm minimum
  • Halo: 0.85 maximum
  • EBI: 2.5 maximum
  • Military Spot Spec (Spots permitted in Zone 2 and Zone 3)

Hand Select: Units will ship within 3-5 business days.

  • Full kit contains PVS-14 (Carson Industries) with L3 24UA 36 SNR min. tube, data sheet from L3Harris, objective lens cover, eyepiece cover, sacrificial window, demist shield, cleaning wipes, Apollo Lens-Pen, AA battery, Apollo stickers / decals and a soft-sided carry case.

Tube Model: - CUSTOM CONTRACT: 24UA, 36 SNR Minimum

  • The following Gen 3 white phosphor, mil-spec tubes from L3Harris are Model 24UA
    • These special order 24UA tubes go a step further and carry a 36 SNR MINIMUM rather than the standard 24UA's 2160 FOM minimum.
        • Unlimited FOM, Aviation spot spec
        • Unfilmed ("filmless"), autogated and come with electromagnetic interference (EMI) shielding.  
        • Aviation spot spec is L3Harris' strictest and only permits spots larger than .003" in zone 3 only (please note that all night vision contains small spots to some degree under the countable spot threshold)
        • 36 SNR minimum marked on the data sheets.
        • FOM = SNR x Center Resolution. See "Spec Key" and "Helpful Info" drop-downs above for more info on specs and spots.

    -----------------

    SN #: 170320697
    SNR: 37.5
    RES: 72
    FOM: 2700
    HALO: 0.8
    EBI: 0.8

     

    Versatility

    The PVS-14 is generally considered to be the most versatile night vision device available. They can be worn helmet mounted, hand-held, mounted to a telescope, camera, or other magnified optic for astronomy or surveillance. Their small size means they are easy to travel with and carry. They are small enough to fit in a GP pouch on a plate carrier without being obstructive.

    Adjustable Gain
    PVS-14s have variable gain adjustment and control.

    Gain control gives the user the ability to increase or decrease the tube brightness.

    Under extremely dark conditions, variable gain (also referred to as manual gain) allows the user to adjust the gain upward, giving a brighter image.

    Under higher light conditions, the user can decrease the gain for a cleaner image or to prevent the washout of fine details in high light.

    Additional features of the PVS-14 include an onboard IR illuminator and a red LED indicator light (light pipe) internal to the device (behind the tube) which signals IR is active or battery is low.

    The PVS-14 allows the user to retain their night adapted vision in one eye while viewing their illuminated surroundings through eyepiece of the PVS-14. On the other hand, binocular night vision gives the user better depth perception, and if it includes articulation, the ability to also use a monocular similar to a PVS-14 (by rotating one pod out of the way).

     

    Tech Specs

    Finish Polymer body (glass/carbon filled)
    Capability

    Flip-Up On-Off
    Built-in IR LED with “IR-on” indicator in FOV
    Low battery indicator in FOV
    Corrosion Resistance against salt water
    Gain Control Variable (manually adjustable). Requires tube type mx11769 or mx10160 with EGAC added. 
    Magnification 1x
    Lens System F/1.2
    FOV 40°
    Range of Focus 0.25 m to ∞
    Diopter Adjustment +2 to -6
    Infrared Illuminator Yes
    Power Supply AA
    Battery Life ~40 Hours (Alkaline), up to ~70 Hours (Lithium)
    Dimensions 4.5"L X 2.5"W X 2.75"H
    Weight 307g (10.8oz), depending on optics and tubes
    Standards Complies with MIL-PRF-49324(CR), MIL-PRF-49427(CR) and MIL-STD-810H (supersedes G).

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