4 ms·
This has been applied for decades. Those 'ceiling windows' in art galleries are often false windows with bright daylight lamps beneath it. By the way, the sun
by unglaublich 5y ago
This has been applied for decades. Those 'ceiling windows' in art galleries are often false windows with bright daylight lamps beneath it.
By the way, the sun produces ~50.000 lux on earth's surface. That's 100 times more than in a wall illuminated office.
To reach that brightness, you would need tens of kilowatts of LED lightning for medium and larger sized rooms. That's totally infeasible. Also, imagine the heat building up. It will literally be like a greenhouse in your room.
So in reality, no one actually aims for the brightness of the sun. But just something fairly bright at a high ('cool') color temperature. That produces the same sensation.
- runeks 5y agoNot only that, but it would also be impossible to see what’s on your computer screen as this isn’t designed to outshine the sun.
- sterlind 5y agoif such a thing were possible, would it be healthy to use a monitor with a 10K lux backlight? I can't decide if this would help or just fry your eyes.
- novok 5y agoWell the sun makes 50klux of light on the surface, and we look at that amount all the time with no harm.
- ericye16 5y agoYes, but usually we don't look into that.
- formerly_proven 5y agoYou don't look at the surface of the earth?
- b112 5y agoHe's of the concave theorists, which take the flat Earth society one step further, and believe the Earth is concave. And surely for them, you can see the horror of such large amounts of light being funneled, being reflected back and forth, over and over. So no, most assuredly, he does not look at the Earth!
- netcan 5y agoPerhaps in theory, considering that when you look at someone's face outside on a sunny day, it is brighter than that. OTOH, staring directly into a lightbulb isn't pleasant, so I suppose there's more to this. Either way, I think the best way to deal with bright light isn't a brighter screen. It's an unlit screen, like e-ink or something.
- Lascaille 5y ago>would it be healthy to use a monitor with a 10K lux backlight? The eyes adapt to brighter backlights but you end up not being able to see your desk. One major annoyance is that eye floaters become a lot more prominent the smaller your pupils are.
- picture 5y agodoes that also include infra red/non visible parts of the spectrum? sorry I'm not familiar with the unit involved
- revax 5y agoNo, lux is based on lumen and itself founded on the human perception of light using the luminous efficiency function. https://en.wikipedia.org/wiki/Luminous_efficiency_function https://en.wikipedia.org/wiki/Luminous_efficiency_function
- nine_k 5y agoMany people (including myself) find such brightness levels uncomfortable, and wear sunglasses. Sunlight is free, but electric light is not. This is why light in my apartment is very bright but not nearly as bright as the streets on a sunny summer day.
- sacrosancty 5y agoIt doesn't need to be the whole room. Just a small patch would feel like having a skylight with the sun pouring in.
- michaelt 5y ago'Overcast February day in London' is only 5,000 lux at the surface, according to my lux meter. You could achieve that with 750W of LEDs. Of course, that is still quite a lot of power.
- BizarroLand 5y agoDepends on distance. They make e27 screw in LED bulbs that will put out over 5,000 lux but you would need to hold the bulb pretty close to your face to get the full value of it.