05 Dec 07
It has been known for years that melatonin gets you to sleep at night and if you have bright lights in your bedroom, the light will inhibit the production or utilization of melatonin so it is harder to get to sleep in a lite up room. Recently it was discovered what band or color of light it is that produces that effect, and the color turns out to be blue. If you are hit with enough blue light when you go to bed, your melatonin will be inhibited. That leads to a way to help get to sleep, just by wearing glasses or contacts that block blue light. My question is this: if you go out looking for such glasses, when blue light is blocked from the normal white light spectrum, what is the resultant visible color of the glasses? I assume if I find such a color in a pair of glasses, it will be blocking blue light, does that follow?
05 Dec 07
Originally posted by sonhouseGlass is transparent, so it looks like the same color that it allows through. It will look blue. Think about it. If you want to put a filter on a light so that it makes blue light, you put a blue filter on it. Same idea.
It has been known for years that melatonin gets you to sleep at night and if you have bright lights in your bedroom, the light will inhibit the production or utilization of melatonin so it is harder to get to sleep in a lite up room. Recently it was discovered what band or color of light it is that produces that effect, and the color turns out to be blue. I ...[text shortened]... e if I find such a color in a pair of glasses, it will be blocking blue light, does that follow?
05 Dec 07
Originally posted by AThousandYoungThe idea was to have a pair of glasses that only blocked out blue, not a pair that only let blue light through. Other than that I think what you said is correct and I think a previous poster was correct in saying they would be yellow, since removing blue from the primary colours gives you red and green which makes yellow.
Glass is transparent, so it looks like the same color that it allows through. It will look blue. Think about it. If you want to put a filter on a light so that it makes blue light, you put a blue filter on it. Same idea.
05 Dec 07
Originally posted by PaddyBI called a camera store and talked to a filter guy there and he said if you have a filter that blocks blue, the filter looks yellow, so maybe thats the right idea.
The idea was to have a pair of glasses that only blocked out blue, not a pair that only let blue light through. Other than that I think what you said is correct and I think a previous poster was correct in saying they would be yellow, since removing blue from the primary colours gives you red and green which makes yellow.
06 Dec 07
Originally posted by PaddyBOh.
The idea was to have a pair of glasses that only blocked out blue, not a pair that only let blue light through. Other than that I think what you said is correct and I think a previous poster was correct in saying they would be yellow, since removing blue from the primary colours gives you red and green which makes yellow.
Well red and green don't make yellow. The opposite of blue is yellow + red = orange.
06 Dec 07
Originally posted by sonhouseI have my doubts about your facts. Night time is very blue. Do you have a reference? I'd think yellow light would keep you up, not blue light.
It has been known for years that melatonin gets you to sleep at night and if you have bright lights in your bedroom, the light will inhibit the production or utilization of melatonin so it is harder to get to sleep in a lite up room. Recently it was discovered what band or color of light it is that produces that effect, and the color turns out to be blue. I ...[text shortened]... e if I find such a color in a pair of glasses, it will be blocking blue light, does that follow?
06 Dec 07
Originally posted by AThousandYoungThe primary colours of light are red, green and blue - not red, yellow and blue. And red and green do make yellow. Use any picture editing tool (paint will do) and create a custom colour with just full red and green with no blue and see what you get.
Oh.
Well red and green don't make yellow. The opposite of blue is yellow + red = orange.
06 Dec 07
1 edit
Originally posted by sonhouseWhy not just turn the light off? Or buy some thicker curtains if it's an external light source?
It has been known for years that melatonin gets you to sleep at night and if you have bright lights in your bedroom, the light will inhibit the production or utilization of melatonin so it is harder to get to sleep in a lite up room. Recently it was discovered what band or color of light it is that produces that effect, and the color turns out to be blue. I ...[text shortened]... e if I find such a color in a pair of glasses, it will be blocking blue light, does that follow?
Edit... I appear to have wandered into P&P by mistake... where'd the generael forum go? 😕
06 Dec 07
Originally posted by PaddyBOh. I think I read that somewhere but I forgot.
The primary colours of light are red, green and blue - not red, yellow and blue. And red and green do make yellow. Use any picture editing tool (paint will do) and create a custom colour with just full red and green with no blue and see what you get.