Underwater navigation device
First Claim
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1. A navigational device for personal use, comprising:
- a) a face mask with a transparent window for binocular vision when said device is worn by a user;
b) a directional indicator for attachment to said face mask;
c) a multiplicity of symbols displayed on said indicator to identify the directional orientation of said indicator and said mask; and
d) a means for attaching said directional indicator to said mask at a stable location and distance from said mask to permit a user to focus his eyes upon said directional indicator for continuous availability of direct binocular viewing of said directional symbols.
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Abstract
A navigation device for personal use includes a face mask with a transparent window for binocular vision when the device is worn by the user. The face mask has a directional indicator attachement with a multiplicity of symbols to identify the directional orientation of the mask. The directional indicator is attached at a stable location and distance for continuous availability of direct binocular viewing.
44 Citations
26 Claims
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1. A navigational device for personal use, comprising:
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a) a face mask with a transparent window for binocular vision when said device is worn by a user; b) a directional indicator for attachment to said face mask; c) a multiplicity of symbols displayed on said indicator to identify the directional orientation of said indicator and said mask; and d) a means for attaching said directional indicator to said mask at a stable location and distance from said mask to permit a user to focus his eyes upon said directional indicator for continuous availability of direct binocular viewing of said directional symbols. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device for underwater navigation of a diver, comprising:
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a) a diver'"'"'s face mask; b) a directional indicator responsive, when said device is worn by said user, to movements of said diver and said mask in roll, pitch, and yaw in reference to the geodetic coordinate system, said directional indicator comprising; a compass sensitive to the earth'"'"'s magnetic forces; a visible display of heading reference symbols relative to the earth'"'"'s north, south, east, and west coordinates; and c) a means of adjustable attachment of said directional indicator to said diver'"'"'s face mask for forward and rearward movement of said directional indicator relative to the viewing window of said face mask and for locating said directional indicator display of heading reference symbols within the binocular field of view of said diver'"'"'s eyes. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A device for underwater navigation of a diver, comprising:
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a) a diver'"'"'s face mask including a transparent viewing window said mask to be worn by said diver; b) a directional indicator responsive to movements of said diver and said mask in roll, pitch, and yaw in reference to the geodetic coordinate system, said directional indicator comprising; a compass sensitive to the earth'"'"'s magnetic forces; a visible display of heading reference symbols relative to the earth'"'"'s north, south, east, and west coordinates, said display located within said diver'"'"'s field of view; c) a means of attachment of said directional indicator to said diver'"'"'s face mask for locating said directional indicator display of heading constantly within the direct binocular field of view of said diver'"'"'s eyes for all motions and orientations of said diver'"'"'s head; and d) a magnifying optical lens interposed in said field of view between said diver'"'"'s eye and said heading reference display for enhanced acuity in the diver'"'"'s near field of vision, said lens positioned to maintain a constant distance between said display and said lens regardless of the orientation of said diver. - View Dependent Claims (24, 25, 26)
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Specification