CMC21 NIGHT TARGET ENGAGEMENT TECHNIQUES WITH THE SERVICE RIFLE Flashcards
1
Q
The retina is responsible for
A
processing the light and translating it into recognizable objects
2
Q
cones
A
cones allow an individual to identify color, shape and contrast. (provide day vision)
3
Q
rods
A
grouped around the cones and are very sensitive to light (night vision)
4
Q
night vision adaptation methods
A
- remain in an area of darkness for 30 minutes
- red light 20 min, dark 10 min
5
Q
night vision considerations
A
- avoid looking at any bright light
- red filter for flashlight use
6
Q
Factors affecting night vision
A
- fatigue
- lack of oxygen
- long exposure to sunlight
- heavy smoking
- drugs
- headaches
- illness
- consumption of alcohol within the past 48 hours
- improper diet
7
Q
define off center vision
A
the techniques of keeping the attention focused on an object without looking directly at it
8
Q
define scanning/ figure eight scan
A
moving the eyes in a series of separate movements across the objective area
9
Q
two types of illumination
A
- ambient light
- artificial illumination
10
Q
5 nomenclature of an/pvs-14d
A
- objective lens
- eyepiece lens
- battery cartridge
- gain control
- power switch
11
Q
an/pvs-14d mount nomenclature
A
- latch
- thumbscrew
- alignment boss groove
- alignment boss