Glare (vision)

Glare is difficulty of seeing in the presence of bright light such as direct or reflected sunlight or artificial light such as car headlamps at night. Because of this, some cars include mirrors with automatic anti-glare functions and in buildings, blinds or louvers are often used to protect occupants. Glare is caused by a significant ratio of luminance between the task and the glare source.

Factors such as the angle between the task and the glare source and eye adaptation have significant impacts on the experience of glare.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY 3.0

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