Search results
This article summarizes equations used in optics, including geometric optics, physical optics, radiometry, diffraction, and interferometry. Definitions [ edit ]
Physics Formulas Optics/Cheat Sheet. In concave mirrors; · Rays coming parallel to the principal axis pass from the focal point. · Rays coming from the focal point travel parallel to the principal axis.
14 sie 2020 · Matrix methods. A light ray can be described by a vector (nα, y) with α the angle with the optical axis and y the distance to the optical axis. The new position of a light ray interacting with an optical system can be obtained using matrix multiplication: (n2α2 y2) = M(n1α1 y1) where Tr(M) = 1.
Optics Cheat Sheet. Reflection of Light. Reflection is the turning back of the light from the surface it hits. Incoming and reflected lights have same angle with the surface. If the surface reflects most of the light then we call such surfaces as mirrors.
Formulas for Optics. L is the distance between focal points and s is the distance to the near point (25 cm)
There is a formula for the refraction of light (as shown in this figure) derivable from Maxwell's Equations, called Snell's Law: n1 sin(θ1) = n2 sin(θ2). (See fig for definitions of symbols) Example: You are looking into water at a little fish. • Your eye draws "straight lines" (dashed, in the fig) and deduces that the fish is located at ...
Optics Formulas. The quantity η0 is the wave impedance of vacuum, and η is the wave impedance of a medium with refractive index n. Wave Quantity Relationship. = π= π 2 2 n. k. λ λ. 0. = π ν = 2 n n ω. c c. Intensity Nomogram. The nomogram below relates E, H, and the light intensity I in vacuum.
