Controls
1. On/Off
Button
On top side, closest to your eye
Press to turn on. Press to turn off
2. Infrared
Button:
On top side, closest to the large front lens
Pressing button activates one of three different modes:
IR AUTO: the infrared emitter will measure the amount of ambient available, and
emit a calculated amount of light to illuminate the scene as required. This
setting will conserve battery life and is usually the preferred setting if you
have decided that the environment is so dark that you cannot see well
without its assistance.
IR MAX: the infrared emitter will output the maximum amount of infrared light
possible for maximum illumination at all times. Constant use at this setting
will minimize battery life.
IR OFF: no infrared light is emitted
3. Three-Way Switch
Located on the underside of unit, rear of battery door, near your thumb as you hold
the device
Push left
to decrease electronic gain
The image will darken with each press of the switch
Push right
to increase electronic gain
The image will brighten with each press of the switch
Push up
to activate the
menu
and program the iGen.
The programming function works as follows:
1. After menu activation, the menu will
time-out
in ten seconds if you do not
make a selection.
2. To
move through
the menu selections, push the 3-way switch
left or right.
3. To
choose
a menu selection for programming,
push up
on the 3-way switch.
You will choose the selection indicated by the arrow.
4. To
program
a setting, move the 3-way switch
left or right.
See the settings change.
5. To
accept a setting
after programming,
push
the 3-way switch
up.
6. When a setting is entered using the left/right control, the setting becomes active
immediately, but you must
push
the 3-way switch
up
to permanently accept the
setting. If you do not accept a setting after 10 seconds, the menu will time-out
and the previous setting will return as the permanent setting.
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Adjustments
1. Eyepiece
(technically referred to as the diopter focal lens in front of the microdisplay)
The iGen has two different focus adjustments. The eyepiece lens adjusts to focus the
display to your individual eyesight. The objective lens focuses on objects in the distance.
To adjust the eyepiece, do the following:
a. Push up on the three-way switch located on the bottom.
b. The menu will appear. Use this menu as a target to focus the eye piece.
c. Rotate the eyepiece rubber cup until the menu letters are sharp and in focus.
If the menu disappears, push up again to see the menu again.
d. Use the menu as a focusing target. This adjustment focuses your individual
eye sight on to the display screen.
e.
After the eyepiece focus is adjusted, do not change this adjustment, even if
the image is out of focus. After you set the eyepiece adjustment, use the
objective (front) lens to focus on objects in the distance.
2. Objective Lens
(large lens in metal housing on front of device)
This lens must be manually rotated to bring objects into focus. As you aim at different
objects at different distances, you may need to rotate the lens to bring the objects into
focus. This operates just like a pair of binoculars.
Lens Specifications are as follows:
Minimal Focal Distance: 16” (41cm)
Maximum Focal Distance: infinity.
Ability to see objects at a distance depends on object size and
ambient light conditions.
Angle of View: 12°
Field of View: 70’at 330’ distance (21 meters at 70 meter distance)
Magnification: 2.6 times
3. Infrared Emitter
You cannot adjust the intensity or light angle of the infrared emitter. The emitter casts a
12° angle of light, equal to that of the iGen’s angle of view. Because the emitter is
positioned to the side of the objective lens, at short distances you will notice a shadow
due to this offset. The infrared produces a round beam of light; at close distance, the
circle of light will clip the corners of the rectangular display. At very close range, you may
see a half-circle of bright light, while the rest of the scene is darker. You cannot control
the intensity of the infrared light, other than to set it in automatic mode. In automatic
mode, the output of the emitter is adjusted to provide the correct amount of infrared
required for optimum illumination. Since the device is very sensitive to infrared light, high
intensity infrared at close range causes the device to reduce internal gain and increase
exposure time, resulting in rapid battery discharge. Use of the IR MAX settings is only
recommended in a very dark outdoor environment.
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