Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-04-10
1997-07-22
Shafer, Ricky D.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359131, 359156, 2440, 2443, 2445, 2452, G02C 100, G02C 300, A61F 902
Patent
active
056508662
ABSTRACT:
The invention provides a pair of goggles which can be used for a variety of recreational activities, such as swimming, cycling, ball games etc. The goggles comprise of a pair of eyepieces and a nosepiece. Each eyepiece has a lens and rim, each rim having a first connecting structure and a headstrap connecting structure to receive a headstrap. The nosepiece has a pair of second connecting structures, and a bridge structure disposed between and integral with the second connecting structure. Each second connecting structure is complementary to a respective first connecting structure of the pair of eyepieces and forms an essentially rigid interference fit therewith. Inner portions of the second connecting structure and outer portions of the bridge means are contiguous and inclined at respective angles to each other at a rigid joint which is sufficiently stiff to resist deformation when subjected to normal loads occurring during use. In this way, the angles between the second connecting structure and the outer portions of the bridge means remain essentially unchanged during normal use.
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Speedo of California--1990 Catalogue--Model "Ultra Vision 1".
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Shafer Ricky D.
Sharp Plastics Manufacturing Ltd.
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