Headgear mounted display visor
First Claim
1. A headgear mounted display comprising in combination:
- headgear adapted to be worn by a person;
means for projecting an image;
a visor formed from substantially transparent plastic material for mounting on said headgear and having an inner concave and an outer convex surface, and, with reference to an orthogonal, right-handed xyz Cartesian coordinate system of spatial reference having its origin located on said inner concave surface and its z-axis parallel to the line of sight of the person wearing said headgear, said inner concave surface being in cross-section in the x-axis of reference, symmetrical about both the origin and the y-z plane of reference, having one-half of the cross-section of said visor in the x-axis of reference as a first circular segment containing the origin at one end and connected at its opposite end to one end of a first paraboloid segment which is connected at its opposite end to one end of an elliptic segment whose opposite end forms a side boundary of said visor,and having a cross-section of the visor in the y-axis of reference having a second circular segment, one end of which forms an upper boundary of said visor and an opposite end connected to one end of a third circular segment having its opposite end connected to one end of a second paraboloid segment whose opposite end forms a lower boundary of said visor.
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Accused Products
Abstract
A visor for mounting on a helmet adapted to be worn by an individual, includes a substantially transparent visor having an inner concave surface, and, with reference to an orthogonal, right-handed xyz Cartesian coordinate system of spatial reference having its origin located on the inner concave surface and its z-axis parallel to the line of sight of the individual wearing the helmet, the inner concave surface being defined by a cross-section of the visor in the x-axis of reference, which is symmetrical about both the origin and the y-z plane of reference, having one-half of the cross-section of the visor in the x-axis of reference being a first circular segment containing the origin at one end and connected to its opposite end to one end of a first paraboloid segment which is connected at its opposite end to one end of an elliptic segment whose opposite end forms a side boundary of the visor, and by a cross-section of the visor in the y-axis of reference having a second circular segment, one end of which forms an upper boundary of the visor and an opposite end connected to one end of a third circular segment having its opposite end connected to one end of a second paraboloid segment whose opposite end forms a lower boundary of the visor.
47 Citations
32 Claims
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1. A headgear mounted display comprising in combination:
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headgear adapted to be worn by a person; means for projecting an image; a visor formed from substantially transparent plastic material for mounting on said headgear and having an inner concave and an outer convex surface, and, with reference to an orthogonal, right-handed xyz Cartesian coordinate system of spatial reference having its origin located on said inner concave surface and its z-axis parallel to the line of sight of the person wearing said headgear, said inner concave surface being in cross-section in the x-axis of reference, symmetrical about both the origin and the y-z plane of reference, having one-half of the cross-section of said visor in the x-axis of reference as a first circular segment containing the origin at one end and connected at its opposite end to one end of a first paraboloid segment which is connected at its opposite end to one end of an elliptic segment whose opposite end forms a side boundary of said visor, and having a cross-section of the visor in the y-axis of reference having a second circular segment, one end of which forms an upper boundary of said visor and an opposite end connected to one end of a third circular segment having its opposite end connected to one end of a second paraboloid segment whose opposite end forms a lower boundary of said visor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A visor for mounting on a helmet adapted to be worn by an individual, comprising:
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a sheet of substantially transparent plastic shield material having an inner concave surface, and, with reference to an orthogonal, right-handed xyz Cartesian coordinate system of spatial reference having its origin located on said inner concave surface and its z-axis parallel to the line of sight of the individual wearing the helmet, said inner concave surface being defined by a cross-section of said sheet in the x-axis of reference, which is symmetrical about both the origin and the y-z plane of reference, having one-half of the cross-section of said sheet in the x-axis of reference being a first circular segment containing the origin at one end and connected at its opposite end to one end of a first paraboloid segment which is connected at its opposite end to one end of an elliptic segment whose opposite end forms a side boundary of said sheet, and by a cross-section of said sheet in the y-axis of reference having a second circular segment, one end of which forms an upper boundary of said sheet and an opposite end connected to one end of a third circular segment having its opposite end connected to one end of a second paraboloid segment whose opposite end forms a lower boundary of said sheet. - View Dependent Claims (9)
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10. A headgear mounted display comprising in combination:
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headgear adapted to be worn by a person; means for projecting an image; a visor formed from substantially transparent plastic material for mounting on said headgear and having an inner concave and an outer convex surface, and, with reference to an orthogonal, right-handed xyz Cartesian coordinate system of spatial reference having its origin located on said inner concave surface and its z-axis parallel to the line of sight of the person wearing said headgear, said inner concave surface being in cross-section in the x-axis of reference, symmetrical about both the origin and the y-z plane of reference, having one-half of the cross-section of said visor in the x-axis of reference as a first concave segment containing the origin at one end and connected at its opposite end to one end of a first paraboloid segment which is connected at its opposite end to one end of a second concave segment whose opposite end forms a side boundary of said visor, and having a cross-section of said visor in the y-axis of reference having a third concave segment, one end of which forms an upper boundary of said visor and an opposite end connected to one end of a fourth concave segment having its opposite end connected to one end of a second paraboloid segment whose opposite end forms a lower boundary of said visor. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A visor for mounting on a helmet adapted to be worn by an individual, comprising:
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a sheet of substantially transparent plastic shield material having an inner concave surface, and, with reference to an orthogonal, right-handed xyz Cartesian coordinate system of spatial reference having its origin located on said inner concave surface and its z-axis parallel to the line of sight of the individual wearing the helmet, said inner concave surface being defined by a cross-section of said sheet in the x-axis of reference, which is symmetrical about both the origin and the y-z plane of reference, having one-half of the cross-section of said sheet in the x-axis of reference being a first concave segment containing the origin at one end and connected at its opposite end to one end of a first paraboloid segment which is connected at its opposite end to one end of a second concave segment whose opposite end forms a side boundary of said sheet, and by a cross-section of said sheet in the y-axis of reference having a third concave segment, one end of which forms an upper boundary of said sheet and an opposite end connected to one end of a fourth concave segment having its opposite end connected to one end of a second paraboloid segment whose opposite end forms a lower boundary of said sheet. - View Dependent Claims (18)
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19. A visor for mounting on a helmet adapted to be worn by a wearer, comprising:
a sheet of substantially transparent plastic shield material having an inner concave and an outer convex surface, said inner concave surface defining, in those two regions of said inner concave surface adapted to be positioned immediately in front of the eyes of the wearer of the helmet, respective first and second paraboloids, said two paraboloids having spaced axes. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
Specification