Chapter 1. Introduction

Intro 22:52 13 August 2023 This is the order/progression on optical axis. Starts from Object to Image Radius:- How much surface is curved Thickness :- Distance to the next surface at its intersection with optical axis Infinite thickness means Object placed infinitely. Parallel waves entering out lens. a plane wave is the limit of a spherical wave as the distance from the source approaches infinity. This is because the curvature of the wavefronts becomes negligible at large distances. Material :- Blank means vaccum This describes how light enters or how much light controls aperture Entrance Pupil Diameter Intro Page 1

he entrance pupil diameter is the size of the opening on the object side of the lens or optical system that gathers light and forms the initial image of the scene. Field:- What point on object where image is launched Wavelength : Light Wavelength/ Colour Designing a Lens Intro Page 2

1) Blue rays are the rays. 2) Lets put one more surface to see rays :- (it should be infront of 3) If doesn’t's see the rays, Click on Settings and check first and last surface 4) Apply a material for Material Commonly used glass material Intro Page 3

5) Apply Back material of lens some radius Thus it’s a Symmetric Lens 6) Apply thickness to surface 3 7) To want point where it converges we need to do some trick:- Intro Page 4

This issue needs to be encountered Intro Page 5