Understanding Optical Equivalent Path: Differences and Similarities

In summary, the conversation discusses the concept of optical equivalent path and its relation to optical path length. It is mentioned that this concept is related to refractive index and can affect the distance traveled by light waves in certain applications. The conversation also mentions a patent application where the term is used in reference to a camera pentaprism.
  • #1
jishitha
23
0
Actually,. What is optical equivalent path.,.? Is this and optical path length are same,.,.,??
 
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  • #2
the first thing that comes to mind is that this is to do with refractive index.For example light slows down in glass, water etc and the wavelength becomes shorter. In some applications such as interference this means that the 'physical distance' becomes a different (greater) distance as far as the waves are concerned.
Hope that this is some help although I am not certain that it is a complete explanation.
 
  • #3
Where did you see the phrase "optical equivalent path"?

I did a Google search for it, putting it in quotes as shown above in order to keep the words together in the search. Besides this very thread, and links to it, I found only a U.S. patent application for a camera pentaprism. There, it seems to mean the same thing as "optical path length."
 

FAQ: Understanding Optical Equivalent Path: Differences and Similarities

What is optical equivalent path?

Optical equivalent path refers to the distance traveled by light in an optical system, taking into account the effects of refraction and reflection. It is the path that light follows through an optical system, which may differ from the actual physical distance due to the bending of light.

How is optical equivalent path different from physical distance?

The physical distance is the actual distance between two points in an optical system, while the optical equivalent path takes into account the bending of light and may be longer or shorter than the physical distance.

What are the factors that affect optical equivalent path?

The main factors that affect optical equivalent path are the refractive index of the medium through which light travels, the curvature of the optical surfaces, and the angle of incidence of the light.

Can optical equivalent path be measured?

Yes, optical equivalent path can be measured using specialized instruments such as interferometers or optical profilometers. These instruments can accurately measure the path length traveled by light in an optical system.

What are the applications of understanding optical equivalent path?

Understanding optical equivalent path is important in the design and analysis of optical systems, such as lenses, mirrors, and prisms. It is also crucial in fields such as optics, astronomy, and microscopy, where precise measurement and control of the path of light is essential.

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