Lenses: Difference between revisions
No edit summary |
No edit summary |
||
| Line 3: | Line 3: | ||
==The Main Idea== | ==The Main Idea== | ||
Index of refraction depends on the wavelength. Thus, light of different wavelengths is bent, or deflected, by different amounts as it passes through a glass prism. Two glass prisms placed together act like a lens. [[File:Converging.png|200px|thumb|right|Converging]] [[File: | Index of refraction depends on the wavelength. Thus, light of different wavelengths is bent, or deflected, by different amounts as it passes through a glass prism. Two glass prisms placed together act like a lens. [[File:Converging.png|200px|thumb|right|Converging]] [[File:diverging.png|200px|thumb|right|Diverging]] The images on the right show that how these two prisms are placed together determines the behavior of the light rays. Placed base to base, the prisms represent what is called a "converging" lens, through which incoming light rays come together, or converge. Placed tip to tip, the prisms represent a "diverging" lens, through which incoming light rays "diverge". | ||
Revision as of 19:00, 24 November 2015
Lenses are found in a huge array of optical instruments, ranging from a simple magnifying glass to the eye to a camera’s zoom lens. Law of refraction is used to explore the properties of lenses and how they form images.
The Main Idea
Index of refraction depends on the wavelength. Thus, light of different wavelengths is bent, or deflected, by different amounts as it passes through a glass prism. Two glass prisms placed together act like a lens.
The images on the right show that how these two prisms are placed together determines the behavior of the light rays. Placed base to base, the prisms represent what is called a "converging" lens, through which incoming light rays come together, or converge. Placed tip to tip, the prisms represent a "diverging" lens, through which incoming light rays "diverge".
A Mathematical Model
What are the mathematical equations that allow us to model this topic. For example [math]\displaystyle{ {\frac{d\vec{p}}{dt}}_{system} = \vec{F}_{net} }[/math] where p is the momentum of the system and F is the net force from the surroundings.
A Computational Model
Examples
Be sure to show all steps in your solution and include diagrams whenever possible
Simple
Middling
Difficult
Connectedness
- How is this topic connected to something that you are interested in?
- How is it connected to your major?
- Is there an interesting industrial application?
History
Put this idea in historical context. Give the reader the Who, What, When, Where, and Why.
See also
Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?
Further reading
Books, Articles or other print media on this topic
External links
Internet resources on this topic
References
This section contains the the references you used while writing this page