| 摘要 |
The headgear comprises a substantially semi-rigid organic plastic sheath structure adapted to be placed in spaced relationship over the eyes and nose of an individual wearing the same, with perimeter portions of the sheath structure lying peripherally outward from the wearer's eyes and nose. The sheath has lateral eye accommodating portions with transparent eye-vision areas. A nose accommodating portion is located intermediate the eye portions. A nostril breath outlet is located at a peripherally outward portion of the sheath other than along the lower edge thereof. Passage means carries nostril breath of a wearer of the sheath from the nose portion to the outlet without substantial direct nostril breath communication into the space between the wearer's eyes and the innermost surfaces of the sheath structure at the eye-vision areas. At least the eye-vision areas are preferably formed by using outer and inner plate members, with an intervening insulation space therebetween. The passage means for carrying nostril breath may be grooved or U-shaped, or may comprise a conduit. A bonnet member is preferably fixed to the sheath; and the passage means of the sheath permits breathing of air underneath the bonnet. Several optional features are included for headgear for water or air environmental use.
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