Visual Dictionary
Subscribe
The Visual
Virtual Human Body
Language:
English
French
Spanish
Look up an image:
Explore by theme
About the Visual
Books
Games
HOME
>
science
>
physics: optics
>
telescopic sight
telescopic sight
Optical instrument mounted on a rifle or a measuring device to increase accuracy.
See telescopic sight in :
french
|
spanish
dovetail
Device for mounting the telescopic sight onto a device or firearm.
winding adjustment
Button for positioning the sight horizontally to offset any divergence of the target from the reticle.
elevation adjustment
Button for positioning the sight vertically to offset any divergence of the target from the reticle.
field lens
Lens placed between the objective and the eyepiece to widen the field of vision.
reticle
Optical system made up of two fine crossed wires to create a precise point as a sighting reference.
turret cap
Part covering and protecting an adjustment button.
objective lens
Lens that captures the light from the observed object and causes it to converge to form a magnified inverted image.
eyepiece
Optical disk or system of disks through which the eye sees the image produced by the lens.
main scope tube
Cylindrical body of the telescopic sight that houses the optical system and through which the light travels.
erecting lenses
Lens system that returns the inverted image formed on the objective lens.