Glossary/Optics

Optics

A B C D E F G H I L M N O P Q R S T V W Z

A

Absolute Co-witness
ACOG (Advanced Combat Optical Gunsight)
Active Night Vision
Adjustable Objective (AO)
Anamorphic Distortion
Anti-Cant Device (ACD)
Anti-Reflection Device (ARD)
Argon Purging
Astigmatism (Optics)
Auto-Shutoff

B

Ballistic Calculator
Battery Life (Optic)
Battle Optic
BDC (Bullet Drop Compensation) Turret
BDC Reticle
Binoculars

C

Cant
Cantilever Mount
Cheapo Glass
Christmas Tree Reticle
Chromatic Aberration
Clicks (Turret Clicks)
Click Value
Coatings (Lens Coatings)
Collimation
Coma

D

Daylight Bright Reticle
Depth of Field
Digital Scope
Diopter Adjustment
Distortion
Dot Reticle
Duplex Reticle

E

Elevation Adjuster
Elevation Turret
Erector System
Etched Reticle
Exit Pupil
Exit Pupil Distance (EPD)
Exit Pupil Ring
Eyebox
Eye Relief

F

Field of View (FOV)
First Focal Plane (FFP)
Fixed Power Scope
Focal Length
Focus Adjustment (Objective)
FOG (Fear of God) Reticle
Forward Observing Scope
Fusion Optic

G

German #4 Reticle
Glass

H

Heads-Up Display (HUD)
Holdover
Holographic Weapon Sight

I

Image Intensifier Tube
Image Inverter
Index Matching Fluid
IR Illuminator

L

Laser Rangefinder (LRF)
Lens Caps
Lens Flare
Lens Pen
Light Transmission
Lower 1/3 Co-witness
LPVO

M

Magnification
Magnification Ring
Magnifier (Optic)
Main Tube
MOA (Minute of Angle)
Mounting Base
MRAD (Milliradian)

N

NETD (Noise Equivalent Temperature Difference)
Night Vision Device (NVD)
Nitrogen Purging
Non-Magnified Optic

O

Objective Bell
Objective Lens
Ocular Bell
Ocular Lens
Optical Axis
Optical Center
O-rings

P

Parallax
Passive Night Vision
Picatinny Rail
Pistol Scope
Pixel Pitch (Thermal)
Prismatic Sight
Prism (Optics)

Q

QD Lever
Quick Detach (QD) Mount

R

Rangefinding Reticle
Recoil Lug
Red Dot Sight
Refresh Rate (Thermal)
Resolution
Resolution (Thermal)
Reticle
Reticle Illumination
Riflescope
Riflescope Rings
Ring Gap
Ring Lapping

S

Scout Scope
Second Focal Plane (SFP)
Shake Awake
Shockproof
Side Focus Knob
Side Parallax
Sniper Scope
Spherical Aberration
Spotting Scope
Subtension
Sunshade

T

Thermal Crossover
Thermal Imager
Throw Lever
Tracking
True 1x
Tube Diameter
Turrets

V

Variable Power Scope
Vignetting

W

Waterproof
Weaver Rail
Windage Adjuster
Windage Turret
Wire Reticle

Z

Zeroing
Zero Offset
Zero Retention
Zero Stop