Patent ID: 8439154
Filing Date: 2013-05-14
Classification: B64C

Abstract:
1. A vibration damping system, comprising: a first window structure; a second window structure that is spaced-apart from said first window structure by a first distance, in an arrangement by which at least portions of said first and second window structures are substantially parallel to one another; wherein said first window structure comprises a single layer of material that is substantially transparent at optical wavelengths for humans; wherein said second window structure comprises two separate layers of material that are both substantially transparent at visible optical wavelengths for humans, said two separate layers being spaced-apart from one another by a second distance in an arrangement by which at least portions of said two separate layers are substantially parallel to one another, thereby forming a space between said two separate layers of material of said second window structure in which said space includes a gaseous material; wherein said gaseous material is used as a vibration damping medium; and wherein said second distance is less than about 0.016 inches (0.41 mm), and said second distance is of a size that provides air-film vibration damping for said second window structure.