Geometric Optics Flashcards
Ray
A way of describing light as a wave form
Geometric optics
A way of describing the prorogation of light in terms of individual rays
Reflection
The change in direction of a wave form due to the presence of a surface
Surface normal
The line perpendicular to the flat surface
Optic properties of materials
Color, apsorptivity, luminocity, photosensativity, reflectivity, refractive index, scattering, transmittence
Transmitance
The change in wavelength of light as it passes through a given material
Scattering
The ability of a material to alter the direction of a wave of sound, particles, or light as they pass through a material
Optical medium
The object through which light passes in an optical system
Refractive index
The ratio of ‘c’ the speed of light through a substance to the speed of light through the optical medium
Index denoted as ‘n’
Reflectivity
The fraction of incident electromagnetic power that is reflected at a surface
Interface
The surface of the optical medium
Photosensitivity
The degree to which a material reacts upon receiving photons
Luminocity
A measure of brightness
Definition varies across multiple disciplines
Color
The visible electromagnetic wavelength of the photons reflected (transmitted in translucent materials) by the material
Gaussian Optics
The practice within geometric optics by which the use of the paralaxial approximation is used in calculation
