Mechanism for translating a night vision goggle

A mechanism for adjusting the position of an optical device with respect to a field helmet along an axis of translation, said mechanism comprising:

• an optical device mounting component for coupling to the optical device;
• a field helmet mounting component for coupling to the field helmet and being slideably coupled to the optical device mounting component along the axis of translation;
• a rotatable lever positionable between the optical device mounting component and the field helmet mounting component, wherein a surface of the lever includes a gear tooth that is shaped to engage gear teeth disposed on a surface of either the optical device mounting component or the field helmet mounting component,
• wherein the lever is rotatable about an axis of rotation between a locked position and an unlocked position, wherein in a locked position the gear tooth of the lever is positioned between adjacent gear teeth to prevent translation of the optical device mounting component with respect to the field helmet mounting component, and in an unlocked position the gear tooth of the lever is separated from the gear teeth to permit translation of the optical device mounting component with respect to the field helmet mounting component.

A night vision apparatus for attachment to a field helmet comprising:

• a night vision device;
• an optical device mounting component coupled to the night vision device;
• a field helmet mounting component for coupling to the field helmet and being slideably coupled to the optical device mounting component along the axis of translation;
• a rotatable lever positionable between the optical device mounting component and the field helmet mounting components, wherein a surface of the lever includes a gear tooth that is shaped to engage gear teeth disposed on a surface of either the optical device mounting component or the field helmet mounting component,
• wherein the lever is rotatable about an axis of rotation between a locked position and an unlocked position, wherein in a locked position the pear tooth of the lever is positioned between adjacent gear teeth to prevent translation of the optical device mounting component with respect to the field helmet mounting component, and in an unlocked position the gear tooth of the lever is separated from the gear teeth to permit translation of the optical device mounting component with respect to the field helmet mounting component.