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You want to call it a "camera sensor" but I personally would not attach the moniker "camera" unless they are in the business of translating light into images of some kind. Here, let's ask Wikipedia:

"A camera is an optical instrument used to capture and store images or videos, either digitally via an electronic image sensor, or chemically via a light-sensitive material such as photographic film."

See now, a camera is the whole instrument, not merely its image sensor. But a camera uses an "image sensor". What is an image sensor?

"An image sensor or imager is a sensor that detects and conveys information used to form an image. It does so by converting the variable attenuation of light waves (as they pass through or reflect off objects) into signals, small bursts of current that convey the information."

So there is no way we've described what's going on in LiFi. For example, you walk up to a urinal and the infrared sensor detects you. Does it paint an image of your privates on a website? No. There is no camera in the urinal, hopefully. The urinal is only interested in whether you are standing right there or if you've left. The urinal does not employ an "image sensor", it uses something dumber.

Likewise, do your solar panels use cameras? They conduct based on exposure to light, don't they? But what is a solar panel concerned about? It generates electricity, not images. A photovoltaic cell is not an image sensor because it has nothing to do with images.

What would your camera be if I disabled the viewfinder display and eliminated its ability to save files on sdcard? Would it still be a camera if its sensors produced electricity but it couldn't provide me an image based on that conduction?

LiFi is not using something dumber, but LiFi is likewise unconcerned about creating images. Since a camera is, by definition, concerned with images, LiFi does not use cameras.




It isn't a 'camera' but what is 'essentially a camera with very few pixels' but a small array of light sensor elements?

I think you should take a step back and look at this logically and stop trying to be right.


> stop trying to be right.

I think you would benefit from this advice as well; and I did attempt to apply logic, but you're ignoring the quoted Wikipedia definitions, and essentially we're just talking past each other, and I have no idea what sort of terminology you're trying to throw around now because it doesn't evidently have anything to do with LiFi tooling as it is.


I answered a simple question: 'is this essentially a camera with few pixels', and I defined what a camera pixel is and agreed that it is 'essentially a camera with few pixels'. It obviously isn't a camera, just like a bicycle is not a motorcycle, but it is 'essentially a motorcycle with a person as an engine'.

If you still think that is wrong, then that's fine I guess; it's your opinion and you are welcome to it.


I think the words being look for here are analogy rather than essential.

The essence of a bicycle is not a motorcycle with a human motor. However, that is a very good analogy for what a bicycle is.


I appreciate the agreeable answer, but it's also worth noting that the bicycle came first in its simplicity, and so the correct framing is that a motorcycle is a bicycle with an internal combustion human.

So how did cameras start? Well, the word is literally Latin for "room" because a man would go into a small, darkened room with only a pinhole opening at one end, and he could observe an image projected on the far wall.

So the original "camera obscura" had no lens or sensors at all! It was essentially a refractive element and a screen. The observer could then paint or draw according to the projected image he perceived with the image sensors in his eyes.


> but LiFi is likewise unconcerned about creating images.

Off topic, but I sense great pun potential here.




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