Re: LED eye damage

"redbelly" <redbelly98@xxxxxxxxx> wrote in message
news:1148304299.619681.11300@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Tim Williams wrote:
"mc" <look@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:K_9cg.41566$QU3.18163@xxxxxxxxxxxxxxxxxxxxxxxxx
The risk of damage to any particular area of the retina depends on the
wattage per area, not the total wattage.

So why don't we have billions of atom-sized pinholes in our retinas from
looking at the night sky full of neutron stars and pulsars? ;-)
<G,d&r>

The diffraction limit of our eyes puts a lower limit on how small an
image can be. And it's a lot larger than an atom :-)

Exactly. And the eye is usually a good bit worse than diffraction-limited.


.

Relevant Pages

  • Re: LED eye damage
    ... wattage per area, not the total wattage. ... So why don't we have billions of atom-sized pinholes in our retinas from ... looking at the night sky full of neutron stars and pulsars? ... The diffraction limit of our eyes puts a lower limit on how small an ...
    (sci.electronics.design)
  • Re: LED eye damage
    ... wattage per area, not the total wattage. ... So why don't we have billions of atom-sized pinholes in our retinas from ... looking at the night sky full of neutron stars and pulsars? ...
    (sci.electronics.design)
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