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2. Optics - Wikipedia

   en.wikipedia.org/wiki/Optics

   Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. [1] Optics usually describes the behaviour of visible, ultraviolet, and infrared light.

3. History of optics - Wikipedia

   en.wikipedia.org/wiki/History_of_optics

   The early writers discussed here treated vision more as a geometrical than as a physical, physiological, or psychological problem. The first known author of a treatise on geometrical optics was the geometer Euclid (c. 325 BC–265 BC). Euclid began his study of optics as he began his study of geometry, with a set of self-evident axioms.

4. Physical optics - Wikipedia

   en.wikipedia.org/wiki/Physical_optics

   Physical optics is also the name of an approximation commonly used in optics, electrical engineering and applied physics.In this context, it is an intermediate method between geometric optics, which ignores wave effects, and full wave electromagnetism, which is a precise theory.

5. Optical engineering - Wikipedia

   en.wikipedia.org/wiki/Optical_engineering

   Optical engineers use the science of optics to solve problems and to design and build devices that make light do something useful. [3] They design and operate optical equipment that uses the properties of light using physics and chemistry , [ 4 ] such as lenses , microscopes , telescopes , lasers , sensors , fiber-optic communication systems ...

6. List of optics equations - Wikipedia

   en.wikipedia.org/wiki/List_of_optics_equations

   Visulization of flux through differential area and solid angle. As always ^ is the unit normal to the incident surface A, = ^, and ^ is a unit vector in the direction of incident flux on the area element, θ is the angle between them.

7. Category:Optics - Wikipedia

   en.wikipedia.org/wiki/Category:Optics

   Optics is the science of light and its interaction with matter.. Optics is a broad subject area. Much of the content is covered in subcategories. Many basic concepts are covered in Category:Geometrical optics, in which light is considered as if it were composed of rays.