History Of Scuba Mask

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History Of Scuba Mask
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• Human eyes are not able to see underwater, so
  diver have to wear a face mask to see underwater
  the reason for this is that the optical density
  of water is completely different to air for which
  the eye is designed.

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Origin of scuba mask 1950

• In 1950's face mask was made at home from a piece
  of circular glass and bicycle inner tube,but by
  the end of the 1950s scuba mask design was
  beginning to evolve from this circular design to
  an oval, allowing for a wider field of view.

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1960

• Two panes of glass were added to the sides of
  scuba mask. Low-profile masks featured a nose
  pocket below the lens that allowed the glass to
  be closer to the eyes, reducing the volume of air
  contained within the mask.

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1980

• Silicone has been used. It is more comfortable
  for the diver due to its greater flexibility and
  longer lasting because it is less susceptible to
  damage from sunlight.

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http//www.primescuba.com/

• Now the scuba mask are consist of lightweight
  plastic frame, glass lenses and a silicone rubber
  skirt. Scuba mask enables you to see underwater
  properly.

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