Abstract: Focusing devices and methods for controlling a focal position of an objective lens assembly in a night vision optical device are provided. The focusing device includes an objective lens assembly positioned at a first or second focus position from an imaging device and a binary focus controller, coupled to the objective lens assembly, configured to translate the objective lens assembly relative to the imaging device to either the first or second focus position. The objective lens assembly is translated to either the first or second focus position in response to an orientation of the night vision optical device.

Abstract: Focusing devices and methods for controlling a focal position of an objective lens assembly in a night vision optical device are provided. The focusing device includes an objective lens assembly positioned at a first or second focus position from an imaging device and a binary focus controller, coupled to the objective lens assembly, configured to translate the objective lens assembly relative to the imaging device to either the first or second focus position. The objective lens assembly is translated to either the first or second focus position in response to an orientation of the night vision optical device.

Abstract: Systems and methods for viewing image data. The system includes a head borne image source, a controller, an eyepiece lens assembly and a display device. The head borne image source images an object and provides the image data. The controller determines a focus adjustment from a focus position of the head borne image source. The display device receives and displays the image data to a user's eye via the eyepiece lens assembly. A distance between the eyepiece lens assembly and the display device is adjusted based on the focus adjustment responsive to the focus position.

Abstract: Focusing systems and methods for remotely controlling a focal position of an objective lens assembly in a night vision optical device are provided. The focusing system includes a focusing device and a focus selector. The focusing device includes an objective lens assembly positioned among two or more focus positions from an imaging array and a focus controller, coupled to the objective lens assembly, configured to translate the objective lens assembly relative to the imaging array among the two or more focus positions. The focus selector is remote from the focusing device and is configured to wirelessly transmit a selected focus position to the focus controller. The objective lens assembly is translated to one of the two or more focus positions in response to the selected focus position transmitted by the focus selector.

Abstract: Systems and methods for viewing image data. The system includes a head borne image source, a controller, an eyepiece lens assembly and a display device. The head borne image source images an object and provides the image data. The controller determines a focus adjustment from a focus position of the head borne image source. The display device receives and displays the image data to a user's eye via the eyepiece lens assembly. A distance between the eyepiece lens assembly and the display device is adjusted based on the focus adjustment responsive to the focus position.