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批评家之间的区别al Angle and Acceptance Angle

September 10, 2019Posted byMadhu

Thekey differencebetween critical angle and acceptance angle is thatwe measure the critical angle within the fiber while we measure the acceptance angle outside the fiber.

An optical fiber a thin, flexible fiber with a glass core through which light signals can be sent with very little loss of strength. The terms critical angle and acceptance angle come under thereflectionof light through an optical fiber.

CONTENTS

1.Overview and Key Difference
2.What is Critical Angle
3.接受角是什么
4.Side by Side Comparison – Critical Angle vs Acceptance Angle in Tabular Form
5.Summary

What is Critical Angle?

The critical angle is theangle of incidencebeyond which rays of light passing through a denser medium to the surface of a less dense medium are no longer refracted but totally reflected. With respect to optical fibers, the critical angle is the least angle of incidence at which total internal reflection takes place.

Key Difference - Critical Angle vs Acceptance Angle

Figure 01: Critical Angle to Prevent Light from Reflecting Back

Furthermore, if a light ray exceeds the critical angle, the light is totally reflected back to the direction where it came (into the denser medium).

接受角是什么?

Acceptance angle is the maximum angle within which an element accepts light. In an optical fiber, it is the maximum angle from the axis at which light can remain confined within the core for “total internal reflection.

批评家之间的区别al Angle and Acceptance Angle

Figure 02: Acceptance Cones

Furthermore, mathematically, acceptance angle is half of the angle of the acceptance cone; the light that enters the optical fiber will propagate only through a cone that we call the acceptance cone.

What is the Difference Between Critical Angle and Acceptance Angle?

The terms critical angle and acceptance angle come under the reflection of light through optical fibers. However, there is a difference between critical angle and acceptance angle. We measure the critical angle within the fiber, whereas we measure the acceptance angle outside the fiber.

批评家之间的区别al Angle and Acceptance Angle - Tabular Form

Summary – Critical Angle vs Acceptance Angle

Basically, we come across the terms critical angle and acceptance angle when we study the reflection of light through optical fibers. However, the key difference between critical angle and acceptance angle is that we measure the critical angle within the fiber and the acceptance angle outside the fiber.

Image Courtesy:

1. “RefractionReflextion” By Josell7 – Own work(CC BY-SA 3.0)viaCommons Wikimedia
2. “Acceptance Angle-Optical Imperfections” By Jcc2011 at English Wikipedia(CC BY-SA 3.0)viaCommons Wikimedia

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Filed Under:Physical Chemistry

About the Author:Madhu

Madhu is a graduate in Biological Sciences with BSc (Honours) Degree and currently persuing a Masters Degree in Industrial and Environmental Chemistry. With a mind rooted firmly to basic principals of chemistry and passion for ever evolving field of industrial chemistry, she is keenly interested to be a true companion for those who seek knowledge in the subject of chemistry.

Comments

  1. Hyungjai,rheesays

    September 13, 2019 at 12:54 am

    Wisdom

    Reply

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