+An **image sensor** is a device that captures [light](/wiki/light) and transforms it into an electrical signal, forming a digital image. It serves as the fundamental 'eye' in devices like a [digital camera](/wiki/digital_camera) or smartphone, translating the visible world into data.
+## See also
+- [Lens](/wiki/lens)
+- [Pixel](/wiki/pixel)
+- [Photography](/wiki/photography)
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