ATN PVS7-HPT, User Manual

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1-4
INTERMITTENT OPERATION. This is a defect in the image area of
the PVS-7 . Sec “flashing”.
LIGHT INTERFERENCE FILTER (LIF). This is a tear-protection fil-
ter for the goggle. Use of this filter will result in a slight reduction in
system gain.
MICROCHANNEL PLATE. A current-multiplying optical disk that
intensifies the electron image produced by the photocathode.
PHOTOCATHODE. The input optic of an image intensifier that ab-
sorbs light energy and in turn releases electrical energy in the form
of an electron image.
SACRIFICIAL WINDOW. A replaceable sacrificial window is sup-
plied to protect the objective lens assembly during operation in ad-
verse conditions.
SCINTILLATION. A faint, random, sparkling effect throughout the
image area. Scintillation is a normal characteristic of the image
intensifier assembly 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 .i dying photocathode and is caused by a defective vacuum seal
of the image intensifier. Shading is very dark and you cannot see an
image through it.
1-4 ADMINISTRATIVE STOwAGE
Administrative stowage of equipment should be done in the fac-
tory-supplied container and after a thorough PMCS as outlined in
Chapter 3 of this manual. This will ensure the PVS-7 remains in a
mission ready-condition during storage.
1-5 wARRANTY INFORMATION
This item shall conform to design, manufacturing, and performance
requirements and be free from defects in material and workmanship
for a period of two (2) years from the date of acceptance. If item is
defective, notify ATN or point of purchase contact.