Diving mask with improved field of vision
OwnerJohn E. Lewisinventor
Life of this patent
Estimating the term…
Abstract
A diving mask has a body for sealably engaging a wearer's face. The mask has one or more transparent viewing plates supported by the body, each having inner and outer surfaces. One or more prisms or simply curved lenses are affixed to the viewing plates to improve the diver's field of vision. A pair of horizontally oriented prisms or lenses may be mounted to a front viewing plate below the diver's normal view plane to provide a field of view directed downward toward the diver's body so as to provide a self-inspection capability. Vertically oriented prisms or lenses may be mounted on front and side plates to produce an enhanced and substantially continuous horizontal peripheral field of view.
Claims38
A mask for underwater use comprising:
- a body configured to sealably engage a wearer's face;
- at least one transparent viewing plate supported by the body and having inner and outer surfaces;
- and
- a transparent cylinder mounted on at least one such viewing plate in an orientation parallel thereto for refractively altering a view through said viewing plate.
A mask for underwater use comprising:
- a body configured to sealably engage a wearer's face;
- a transparent viewing plate supported by the body and having inner and outer surfaces;
- and
- a transparent body mounted on said viewing plate for refractively altering a view through the viewing plate, the transparent body having a first planar surface and a simply curved second surface, which second surface is at least in part at an acute angle to the first surface.
A mask for underwater use comprising:
- a body configured to sealably engage a wearer's face;
- a transparent face plate supported by the body and having inner and outer surfaces;
- and
- a transparent body connected to said face plate for refractively altering the view through the transparent body, the transparent body having a first planar surface and a simply curved second surface, which second surface is at least in part at an acute angle to the first surface.
A mask comprising:
- a body configured to sealably engage a wearer's face;
- a transparent face plate supported by the body and having inner and outer planar surfaces and left and right sides;
- left and right transparent side plates, each having inner and outer surfaces, supported by the body adjacent the left and right sides of the face plate, respectively, and oriented substantially orthogonal to the face plate;
- and
- a transparent body having a first planar surface and a simply curved second surface, which second surface is at least in part at an acute angle to the first surface, said first planar surface affixed to one of the side plates.
A mask comprising:
- a body for engaging a wearer's face;
- a transparent face plate supported by the body, wherein said face plate has inner and outer planar surfaces and left and right viewing sections;
- and
- first and second transparent prisms, each of which has a first planar surface, wherein the first planar surface of the first such prism is affixed to the inner surface of the right viewing section, and the first planar surface of the second such prism is affixed to the inner surface of the left viewing section.
Dependencies are inferred from the claim text.