Technical data

A. Bright Spots

Abrightspotisasmall,non-uniformbrightareathatmayickerorappearconstant(Figure4-3).

Not all bright spots make the CO-MINI returnable. Cup your hand over the lens to block out all light. If

the bright spot remains, please contact Customer Support.

Bright spots usually go away when all light is blocked out. Verify that any bright spots are not simply the

result of bright light in the area you are observing. Bright spots are acceptable if they do not interfere

with the user’s ability to view the scene or perform missions.

B. Emission points

Emission points are steady or uctuating pinpoints of bright light in the image area that do not go away

whenallexternallightisblockedfromtheobjectivelens(Figure4-3).Thepositionofanemissionpoint

within the image area does not move. Not all emission points are cause to return the CO-MINI. Verify

that emission points are not simply light sources present in the scene you are observing. Emission

points are acceptable if they do not interfere with the user’s ability to perform missions.

BRIGHT

SPOT

EMISSION

POINT

FIGURE 43. EMISSION POINTS AND BRIGHT SPOTS

C. Black Spots

Black spots are cosmetic blemishes in the image intensier or debris between the lenses. Black spots are

acceptable as long as they do not interfere with the user’s ability to observe the scene. No action is required

if this condition is present, unless the spots interfere with the operator’s ability to perform missions.

D. Fixed-pattern Noise

Fixed-pattern noise is usually a cosmetic blemish characterized by a faint hexagonal (honeycomb) pat-

tern that appears throughout the viewing area. This typically occurs in excessively lit environments or

whenviewingverybrightlights(SeeFigure4-4).Thispatterncanbeseenineveryimageintensierif

the level of light is high enough. This condition is acceptable as long as the pattern does not interfere

with the user’s ability to view an image or their ability to perform missions.

FIGURE 44. FIXEDPATTERN NOISE