Litton Systems, Inc.

Terry D Morris

David W Buck

Michael D Waterman

Amotz Dor

Marcus L Sutton

Mark E Gramer

David A Crosby

James G Winkel

A transportable power source (P) for an image viewing device (D) includes a battery pack housing assembly ( ) to internally hold a first battery pack ( ). An electrical interface circuit ( ) receives an input voltage level ( ) and provides a resulting output voltage level ( ) as an output therefrom to operate the viewer device (D). The interface circuit ( ) receives a selected first input voltage level ( ) from the first battery pack ( ). Alternatively, the interface circuit ( ) receives a selected second input voltage level ( ) from a power supply source (S) external to the battery pack housing ( ). The interface circuit ( ) further includes a switch ( ) for selecting between sources of input voltage levels from among at least the first input voltage level ( ) and the second input voltage level ( ). The switch ( ) also selectively controls the source for the resulting output voltage level ( ).

Low profile battery pack with aircraft power provisions

A night vision device (NVD) includes a control circuit having an acceleration-responsive switch. When the NVD is in a generally horizontal use position, the acceleration-responsive switch enables a circuit allowing voltage to be applied to an image intensifier tube of the night vision device, so that night vision is provided. On the other hand, when the device is flipped up to a stowed position allowing the user of the device unobstructed natural vision, the acceleration-responsive switch senses the changed orientation of the gravitational acceleration vector, and turns off the image intensifier tube as well as other light-emitting sources of the night vision device. The acceleration responsive switch controls operation of voltage step-up circuit, which allows the NVD to be operated with a single one and on-half volt battery cell, and which also insures when it is turned off that not only is the image intensifier tube turned off, but also that all other possible sources of light emissions from the NVD are turned off.

Night vision device and method

A night vision device with improved user safety includes a head gear support structure which suspends a night vision viewer relative to the head and eyes of the user. The head gear includes a flip up mount allowing the user to flip the night vision viewer up and out of the user's line of sight for an unobstructed natural view of the environment. In order both to save battery power, and to prevent the user from inadvertently revealing his position by forgetting to turn off the night vision viewer before flipping it up, the support structure includes a magnetic flux source cooperable with a magnetically-responsive switch of the night vision viewer to maintain the viewer turned on only when the viewer is in its use position. When the viewer is flipped toward its upward position, the switch of the viewer is carried out of magnetic association with the flux source so that the viewer shuts off. Because the viewer remains mounted on the flip up mount during this series of events allowing the user an unobstructed view of the environment, the viewer is immediately available to be flipped downwardly to its use position back into operative association at its switch with the flux source, and to be turned on again for night vision viewing.

Head-mounted flip-up night vision device with automatic turn-off upon

A night vision scope which includes an improved voltage supply. A battery generates a voltage which is proportionally increased by a voltage step-up circuit to provide a voltage to an image intensifier and an infrared light source of the night vision scope. The voltage supply includes circuitry for limiting the voltage output of the voltage supply circuit if a battery is used which generates a voltage greater than that required by the elements of the night vision scope.

Growing community of inventors

Buckeye, AZ, United States of America

Terry D Morris