Ir Illuminator Operation - ATN PS-7 Operator's Manual

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next focus the front lens until the image and the grain are both sharp.

When you are in low-light conditions and the daylight filter is off, you

may focus the front lens to receive sharp image, the diopter should

not be adjusted.

5X lenS FoCUS aDjUStment

NOTE

The front lens should be readjusted as you view objects at differ-

ent distances.

2.2.5. IR IllUMINATOR OPERATION

A. Built-in Infra-Red Illuminator

FIGURE 2-14. PS-7 BUIlT-IN INFRA-RED IllUMINATOR

Infra-red illuminators, or Ir illuminators, are common to night vision.

the Ir light greatly enhances the performance of the PS-7 while re-

maining almost totally invisible to the naked eye.

2-12

StanDarD lenS

FoCUS aDjUStment

FIGURE 2-13. PS-7 lENS ADjUSTMENT

3X lenS FoCUS aDjUStment

8X lenS FoCUS

aDjUStment rInG

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