Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1999-04-28
2000-07-11
Epps, Georgia
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
250214VT, 359353, 359409, G02B 2714, G02B 530, G02B 2300, H01J 4014
Patent
active
060881658
ABSTRACT:
A night vision device comprising a facemask housing assembly having a peripheral surface defined by a rear surface contoured to a user's face and an open front surface, the housing assembly operative for encasing a pair of optical assemblies operative for receiving light from a viewed object via a first folded optical path and via a second direct optical path, combining the light from the first and second paths, and directing the combined light to a user's eye for viewing the object; where each optical assembly detachably coupled to the housing assembly. Each optical assembly comprises an objective lens assembly for receiving and focusing visible and infrared light from a viewed object along the first folded optical path; image intensifier means responsive to the focused light from the objective lens assembly for converting the visible and infrared light to visible intensified light; and beam combining means responsive to the visible intensified light and to the direct path light for combining with one another and directing the combination to the user's eye for viewing.
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Crabtree Ronald Croffard
Janeczko Donald John
Vance Gary Morgan
Epps Georgia
ITT Manufacturing Enterprises
Spector David N.
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