Same way as digital cameras in general work, just scaled down.
You have a lens that focuses light onto an image sensor. The image sensor is an electronic chip with millions of light-sensitive spots. When enough light rays hit a certain spot on it, it sends a signal that this pixel should be bright rather than dark.
The camera lenses are usually “fixed” because this saves a lot of space and avoids having the lens stick far out of the phone. This means you usually don’t have optical zoom. Even then, there is still usually a “camera bump” because it wasn’t possible to fit all the optics in the same thickness as the rest of the phone.
Same way as digital cameras in general work, just scaled down.
You have a lens that focuses light onto an image sensor. The image sensor is an electronic chip with millions of light-sensitive spots. When enough light rays hit a certain spot on it, it sends a signal that this pixel should be bright rather than dark.
The camera lenses are usually “fixed” because this saves a lot of space and avoids having the lens stick far out of the phone. This means you usually don’t have optical zoom. Even then, there is still usually a “camera bump” because it wasn’t possible to fit all the optics in the same thickness as the rest of the phone.
Same way as digital cameras in general work, just scaled down.
You have a lens that focuses light onto an image sensor. The image sensor is an electronic chip with millions of light-sensitive spots. When enough light rays hit a certain spot on it, it sends a signal that this pixel should be bright rather than dark.
The camera lenses are usually “fixed” because this saves a lot of space and avoids having the lens stick far out of the phone. This means you usually don’t have optical zoom. Even then, there is still usually a “camera bump” because it wasn’t possible to fit all the optics in the same thickness as the rest of the phone.
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