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A comment on What it's like to spend 40-50 hours in VR every week. Parent comment

Re:What it's like to spend 40-50 hours in VR every week by ako on Tuesday September 28, 2021 @06:48AM (#28681267)
Isn't everything picked up by your eyes emitted light?
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Re:What it's like to spend 40-50 hours in VR every week by illwrks on Tuesday September 28, 2021 @11:08AM (#28683677)
No.

Think of it like a cinema projection vs TV screen.

In a cinema a projector sends light onto a screen that bounces off and towards your eyes, this is a reflected light.

If you were to watch a TV of the same size it would be emitting light from LED's shining light directly to you.

There are some comments on an older thread with some good info: https://news.ycombinator.com/item?id=17993615

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Re:What it's like to spend 40-50 hours in VR every week by goodpoint on Tuesday September 28, 2021 @11:29AM (#28683969)
Direct or reflected light is just light. Same stuff.

What matters is the content and quality of the light spectrum.

LED lights or even LCD screens can be designed with a more or less healthy spectrum depending on the priorities of the manufacturer. But this is an economical problem that can be regulated.

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