the branch of physics that studies the physical properties of light
"the optics of a telescope"
The physics of light and vision.
The light-related aspects of a device.
The optics of this telescope are particularly good.
Perception, image, public relations.
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.
The numerical value of optics in Chaldean Numerology is: 8
The numerical value of optics in Pythagorean Numerology is: 1
Images & Illustrations of optics
Translations for optics
From our Multilingual Translation Dictionary
- optaic, radharceolaíochtIrish
- אופטיקה, תורת האורHebrew
- ljósfræði, sjónfræðiIcelandic
- 광학, 光學Korean
- quang học, 光學Vietnamese
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