why brownie sunglass block the blue light?

[radiology_dr]

why brownie sunglasses block the blue light? is this because its brown tint ?
If so, does this mean that any brown tinted sunglass can block the blue light?

[Tungsten_smooth]

@radiology_dr I've noticed that dark brown glass bottles do a fine job of creating a very amber yellow tint. I also have a 60 25 watt bulb that creates a orange/amber tint as well, but it's not brown, it's dark orange. I have an orange ~20 watt bulb that's very orange.

[Astara]

The above should be flagged for moderation, but apparently only privileged users can do so (I.e. I tried, but was told I was too noob!). Lame. Takes less reputation to post spam than to flag it as spam? Um... what's wrong with this picture.

[lorna]

@Astara thanks! I'll see if I can change that setting.