What does paraxial mean?
The term paraxial refers to a region or ray that is situated outside the axis of a lens or optical system. In the context of optics, paraxial approximation is a simplification used to model the behavior of light as it passes through a lens. This approximation assumes that the angle of incidence is small, and the image is formed at the focal point. Paraxial rays are used to describe the behavior of light in a lens system, and the term is often used in technical contexts. While it may be unfamiliar to non-experts, paraxial is an important concept in the field of optics and lens systems. Its precise meaning and usage are essential in understanding the behavior of light and its interaction with optical systems.
adjectiveRelating to or situated outside the axis of a lens or optical system, especially in the case of a paraxial ray.
- Relating to or situated outside the axis of a lens or optical system.
"The paraxial region of the lens was where the image was formed."
"The paraxial region of the lens was where the image was formed."
"In paraxial approximation, the image is formed at the focal point."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of paraxial
The term paraxial comes from the Greek words 'para' meaning 'beside' and 'axial' meaning 'relating to an axis'. It was first used in the context of optics in the 17th century to describe the behavior of light as it passes through a lens. Since then, the term has been widely adopted in the field of optics and is used to describe the behavior of light in various lens systems.
How paraxial is actually used
Paraxial is often used in the context of optics and lens systems. It is a technical term and may be unfamiliar to non-experts.