Question

The maximum angle in which external light rays may strike the air or glass interface and still propagate down the fiber is called

Answer 1

sorry I don't know this answer

Answer 2

The maximum angle in which external light rays may strike the air or glass interface and still propagate down the fiber is called acceptance angle.

Definition and Characteristics:

• The highest angle at which a solar concentrator can capture incoming sunlight is known as the acceptance angle. Its value is influenced by the receiver's refractive index and the optic's concentration.
• In practical systems, increasing a concentrator's acceptance angle is desirable, and doing so can be accomplished by using nonimaging optics.
• The acceptance angle may be different in the two directions for concentrators that concentrate light in two dimensions.

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