Whois & Analysis for opticsplanet.com

A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope.

They are equipped with some form of graphic image pattern (a reticle) mounted in an optically appropriate position in their optical system to give an accurate aiming point.

Telescopic sights are used with all types of systems that require accurate aiming but are most commonly found on firearms, particularly rifles.

Other types of sights are iron sights, reflector (reflex) sights, and laser sights.

The optical components may be combined with optoelectronics to form a night scope.

Binoculars or field glasses are two telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects.

Most are sized to be held using both hands, although sizes vary widely from opera glasses to large pedestal mounted military models.

Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.

Optics usually describes the behaviour of visible, ultraviolet, and infrared light.

Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties.

Night vision is the ability to see in low light conditions.

Whether by biological or technological means, night vision is made possible by a combination of two approaches: sufficient spectral range, and sufficient intensity range.

Humans have poor night vision compared to many animals, in part because the human eye lacks a tapetum lucidum.

A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).

The first known practical telescopes were invented in the Netherlands at the beginning of the 1600s, by using glass lenses.

They found use in both terrestrial applications and astronomy.