Lenses in Geometric Optics
In geometric optics, lenses are optical devices designed to refract (bend) and focus light rays to form an image. There are two primary types of lenses: convex and concave.
Convex Lens
- Convex lens are known as converging lens.
- Thicker in the middle and thinner at the edges.
- Converges parallel incident rays to a focal point on the opposite side of the lens.
- Forms real, inverted images if the object is located beyond the focal point, and virtual, upright images if the object is within the focal point.
Concave Lens
- Concave lens are known as diverging lens.
- Thinner in the middle and thicker at the edges.
- Diverges parallel incident rays, making them appear to originate from a focal point on the same side of the lens.
- Forms virtual, upright, and reduced images.
Geometric Optics
Geometric optics is a branch of optics that focuses on the study of light as rays, without considering its wave nature. It deals with the behavior of light when it interacts with surfaces and boundaries, particularly in terms of reflection and refraction. Geometric optics is primarily concerned with the formation of images by optical elements such as lenses and mirrors and the principles governing their behavior.
In this article, we will learn in detail about geometric optics, optical instruments based on geometric optics, formulas and examples.
Table of Content
- What is Geometric Optics
- Laws of Geometric Optics
- Mirrors in Geometric Optics
- Lenses in Geometric Optics
- Ray Tracing in Geometric Optics
- Geometric Optics Formula
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