Optics
6 terms
Acceptance Angle
The maximum angle relative to the fiber axis at which incident light can enter the fiber core and undergo total internal reflection.
OpticsAccommodation of the Eye
The automatic adjustment process by which ciliary muscles alter crystalline lens focal length to focus objects at varying distances onto…
OpticsAngle of Deviation
The angle between the direction of an incident light ray entering an optical element (like a prism) and its emerging direction.
OpticsAstigmatism
A visual defect caused by non-spherical, asymmetric curvature of the cornea or lens, preventing rays in different planes from focusing at a…
OpticsAstronomical Telescope
A refracting optical instrument consisting of a long-focal-length objective lens and short-focal-length eyepiece used to observe distant…
OpticsAttenuation
The loss of optical power or signal strength as light propagates through a medium or optical fiber.