NVG Flashcards
What tool can help maintain aircraft control when hovering over low-contrast or disorienting surfaces?
In eye symbology: HUD/I-HUD/HDU
What component of the eye adjusts pupil size to allow light into the eye?
Iris
_____ cells are less effective as light levels decrease
Cone
Which type of vision is characterized by lack of color perception and required off center viewing?
Scotopic vision
Rhodopsin
30-45 minutes to buildup
Bleached out by bright light
How long does it take to recover dark adaptation due to exposure to a bright light?
5-45 minutes depending on duration and intensity of exposure
When is the lenses flexible?
When the individual is young
Where does the optic nerve enter the retina
The optic disk
What is the transition zone between photo pic and scotopic vision?
Mesopic vision
Dark adaptions takes how long?
30-45 min
How long is the night blind spot?
5-10 degrees
What information does motion parallax provide aviators?
Aircraft speed and direction of movement
How to clean dirty contacts using a ______
Pencil eraser
Which lense assembly contains the minus blue coating which filters out light from the aircraft instrument panel?
Objective lens
What item is used to clean the ANVIS electrical contacts?
Pencil eraser
What are the four Operational defects?
Shading
Edge glow
Emission points
Flashing/flickering and intermittent operation
On off switch is oriented
Up
You cannot mix what type of batteries
Alkaline and lithium
What kind of batteries can you not use
Rechargeable batteries
Primary batteries are on what side
Right
Low battery indicator
Re blinking light with 30 min remaining
Max counterweight
22 ounces
What is the only authorized counterweight
The bag
Anvis
Passive system
1:1 magnification
40 degree FOV