1. Introduction Flashcards
Light is propagated (in what way), changes direction only if there is change in (…)
Linearly, refractive index.
Light travels from (direction).
Left to right.
Object/image distances (and inverses),
focal lengths, and radii of curvature are
measured from (…).
optical surfaces.
Distances in direction of light are
(positive/negative).
Positive.
Heights measured from (…)
Axis
For points below axis, heights are
(…).
Negative.
- Clockwise angles are (…)
- Angles measured from (…) to (…)
- Angles measured from (…) to (…)
Negative
Ray to axis
Normal to ray
Refractive index (n) usually depends upon (…)
Wavelength (lambda)
n (refractive index) = (equation?)
light velocity in vacuum/light velocity in medium
Snell’s Law?
nsini = n’sini’
i = angle from axis
n = refractive index
Paraxial Optics:
Involves paraxial rays, which are real (finite) rays and very close to optical axis. They can be considered to be ideal rays
A paraxial ray is a ray that establishes a small angle towards the optical axis of the system as well as remains close to it throughout the entire system.
The primary distinction between paraxial rays as well as principal axes seems to be the distance between themselves as well as the principal axis.
Gaussian Optics
* idealization of optical imagery based upon behavior of paraxial rays, but extended beyond paraxial region
.
Gaussian optics is a technique in geometrical optics that…
Describes the behavior of light rays in optical systems by using the paraxial approximation.
Gaussian optics assumes that…, known as the (name of theory?)
a = sin(a), first order theory.
Paraxial rays allow for the assumption that…
Sine of angle is equal to magnitude of angle.
