Oregon Rifleworks
HighLine Firearms
Low Price Guns
Gun Deals
Southwest Firearms
Oregon Arms & Ammunition
Buster Beaver Cerakote
Sporting Systems
Defensive Arts
J&B Firearm Sales
Simply Triggers
Advertise on Northwest Firearms
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.
Most optical phenomena can be accounted for using the classical electromagnetic description of light. Complete electromagnetic descriptions of light are, however, often difficult to apply in practice. Practical optics is usually done using simplified models. The most common of these, geometric optics, treats light as a collection of rays that travel in straight lines and bend when they pass through or reflect from surfaces. Physical optics is a more comprehensive model of light, which includes wave effects such as diffraction and interference that cannot be accounted for in geometric optics. Historically, the ray-based model of light was developed first, followed by the wave model of light. Progress in electromagnetic theory in the 19th century led to the discovery that light waves were in fact electromagnetic radiation.
Some phenomena depend on the fact that light has both wave-like and particle-like properties. Explanation of these effects requires quantum mechanics. When considering light's particle-like properties, the light is modelled as a collection of particles called "photons". Quantum optics deals with the application of quantum mechanics to optical systems.
Optical science is relevant to and studied in many related disciplines including astronomy, various engineering fields, photography, and medicine (particularly ophthalmology and optometry). Practical applications of optics are found in a variety of technologies and everyday objects, including mirrors, lenses, telescopes, microscopes, lasers, and fibre optics.

View More On Wikipedia.org
  1. washagonian

    Need Recommendations for Small Monocular

    Optics neophyte here. Old eyes. I'm starting to research small monoculars. Use would be for target shooting (probably max is 100 yards) and outdoor activity (kayaking and hiking). Because I know nothing, I would appreciate some suggestions of products to research. Looking for the best quality...
  2. CountryGent

    Optics being impacted by the panic?

    It is not uncommon for ammunition, standard capacity magazines, and "scary" guns to become scarce during the now thoroughly routine panic cycles. I don't, however, recall optics becoming problematic. This past week I was looking for a Leupold FX-II Ultralight 2.5x20㎜ to complete one of the...
  3. CountryGent

    Little optic for carry handle equipped AR?

    A while back I saw a very compact telescope scope for ARs with a carry handle upper. I was thinking it would be a good addition to the abbreviated AR we have: Recommendations? Thank you. :)
Southwest Firearms Forum
Oregon Arms & Ammunition
Copeland Custom Gunworks
NW Custom Firearms
Advertise on Northwest Firearms
Project Appleseed
Sporting Systems
Cerberus Training Group
Top Bottom