2 OPTIX Module 1, Basic (Optics Basics - I) * Lastly, as preparation for this module, write down everything optics-related you remember from the optics unit in Intro … fiber-optics, optics and related fields in photonics, it is necessary to understand the basics of number notation and measure ment units. FEATURES OF A WAVE 3 1.1.3 Evidence for light as a stream of particles One of the earliest proponents of the idea that light was a stream of particles was Isaac Newton − In this theory, propagation of light in various optical media can be described by simple geometrical rules. Lectures On Geometrical Optics. Fundamental work in diffraction by Snellius (1591-1626), in addition to the insights and These deviate rays and we can condense rays or rotate images. They work very well for what they were designed. Optics 101 Basic Optical Terms. 7. − Ray optics is based on a very rough approximation (λ→0, no wave phenomena), but we can explain almost all daily life experiences The paraxial approximation requires that only rays entering the optical system at small angles with respect to … This lecture note explains following topics: Basics of optics, Laws of Reflection and Refraction, Reflection from spherical mirrors, Velocity of image, Refraction at Plane Surfaces, Prism Theory, Defects of images, Refraction from … Pinhole camera wave optics Geometric 12 Fermat‘s Principle Light propagating between two points follows a path, or paths, for which the time taken is an extremum (minimum) Ignoring the wave nature of light Basic theory for optical instruments Geometrical Optics – Revision Geometric 13 (2)((22))(2) Image sensorImage sensor ( Photo detector ) ( Photo detector ) Image sensor transfers light energy to electrical energy. These are designed for shooting closer ranges so the eye will focus quickly on the illuminated reticle for a faster shot. source. − Ray optics or geometrical optics is the simplest theory for doing optics. Convex and Concave Lenses (page 19): Use ray tracing to determine the focal lengths of lenses. They are not going to give you the precision that will be required at longer ranges. Basic Optics System About the Experiments 8 6. 4 COMMONLY USED UNITS Centimeters = Millimeters = Micrometers = Micron = Millimicron = Nanometer = Angstrom = Inch = Millimeter = Furlong = 10-2 meter 10-3 meter 10-6 meter 10-6 meter 10-9 meter 10-9 meter 10-10 meter 25.4mm 0.03937in The system of counting numbers uses the base ten. Lens, mirrors and prisms are most basic optical elements. The scientific development of optics, specifically geometrical optics, evolved from the contributions of many. 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