LearningCausesv1

A polarising filter can reduce reflected glare

Rotation blocks much of the strongly polarised light from a non-metallic reflection.

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Output
Less glare and clearer detail beneath or beyond the reflection
Input
A camera viewing reflective water through a rotated polarising filter
Relationship

What connects the input and output?

Reflected light is often preferentially polarised. Aligning the filter to reject that orientation reduces the reflection while transmitting other scene light.

Sources

1
  1. www.britannica.com: A polarising filter can reduce reflected glarewww.britannica.com

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