The invention relates to binoculars and a method for adjusting an interpupillary distance of binoculars, comprising a first housing half having a first eyepiece with a first optical axis, a second housing half having a second eyepiece with a second optical axis, wherein the distance of the first optical axis to the second optical axis defines an interpupillary distance and wherein the first housing half and the second housing half are hingedly connected to each other by means of at least one folding bridge and wherein the folding bridge comprises a first folding bridge portio coupled with the first housing half and a second folding bridge portion coupled with the second housing half and wherein the interpupillary distance may be changed by pivoting the two housing halves and wherein a detection device is formed, by means of which the interpupillary distance may be determined.

Disclosed herein is an exemplary bipod device that includes a first shaft and a second shaft. The first and the second shaft are attached together by a connector. Also, attached to the first shaft is a first platform and attached to the second shaft is a second platform. Additionally, disclosed herein is an exemplary bipod system that includes a bipod comprising a first and a second shaft, and a connector connected to the first and second shaft. The bipod system further includes a first platform attached to the first shaft.

An optical instrument indexing device includes a riser and first and second platform. The first platform is disposed on a first side of the riser at a first position on the riser. The second platform disposed on a second side of the riser at a second position on the riser. Both the first and second platforms are indexed or indexable to align two optical instruments to a field of view.

A modular binocular night vision device permits vision during low-light conditions by converting incoming near-infrared and visible light from a viewed scene to an intensified visible light image. The modular binocular night vision device comprises a pair of monocular housings, connected to one another by way of a bridge, that are arranged for respectively covering the right and left eye of an observer. Each monocular housing contains an identical optical system. An example modular binocular night vision device comprises the bridge and a mount module used to attach the modular binocular night vision device to a helmet. The bridge includes a mechanical connection port on a top side thereof. The mount module includes a base and an onboard power source. The base is removeably attachable to the mechanical connection port on the bridge and the onboard power source is adapted to provide power to the binocular night vision device.

A modular binocular night vision device permits vision during low-light conditions by converting incoming near-infrared and visible light from a viewed scene to an intensified visible light image. The modular binocular night vision device comprises a pair of monocular housings, connected to one another by way of a bridge, that are arranged for respectively covering the right and left eye of an observer. Each monocular housing contains an identical optical system. An example modular binocular night vision device comprises the bridge and a mount module used to attach the modular binocular night vision device to a helmet. The bridge includes a mechanical connection port on a top side thereof. The mount module includes a base and an onboard power source. The base is removeably attachable to the mechanical connection port on the bridge and the onboard power source is adapted to provide power to the binocular night vision device.

Provided is an anti-vibration device which includes a shake correction unit, the anti-vibration device including a first vibration detector that is disposed in the shake correction unit, a second vibration detector that is disposed outside the shake correction unit, and a processor. The processor performs anti-vibration control based on a first output value output from the first vibration detector and a second output value output from the second vibration detector.

Provided is an anti-vibration device which includes a shake correction unit, the anti-vibration device including a first vibration detector that is disposed in the shake correction unit, a second vibration detector that is disposed outside the shake correction unit, and a processor. The processor performs anti-vibration control based on a first output value output from the first vibration detector and a second output value output from the second vibration detector.

A binocular telescope includes a pair of Schmidt-Pechan roof prisms, a second half pentaprism, a right-angle prism, a main circuit board, and an auxiliary circuit board. The second half pentaprism is connected to a first lateral surface of one of the first half pentaprisms. A second lateral surface of the second half pentaprism substantially faces the other first half pentaprism. The third lateral surface of the right-angle prism is connected to the second lateral surface of the second half pentaprism. A normal of the fourth lateral surface of the right-angle prism is perpendicular to an imaginary plane. The imaginary plane includes a normal of the first lateral surface and a normal of the second lateral surface. The light emitter and the light receiver on the auxiliary circuit board are arranged above the fourth lateral surface of the right-angle prism and electrically connected with the main circuit board respectively.

A focusing mechanism for a binocular with dual stiffness of operation, comprises a focusing knob which is mounted rotatably about its longitudinal axis on a static shaft which is fixedly mounted in the binocular structure. The focusing knob is associated with a braking means with adjustable braking effect and is provided with a braking drum. The cylindrical circumferential surface of the braking drum is associated rotatably about its longitudinal axis with the cylindrical circumferential surface of a braking ring, whose other cylindrical circumferential surface is associated by its circumferential surface with a collet of a clamping ring, which is with its rigid part seated in the housing which is fixedly mounted on the static shaft. The collet of the clamping ring is associated with the control of the pressure force on the cylindrical circumferential surface of the braking ring, the control of the gripping of the collet being coupled to a switch of stiffness of the focusing operation.

A focusing mechanism for a binocular with dual stiffness of operation, comprises a focusing knob which is mounted rotatably about its longitudinal axis on a static shaft which is fixedly mounted in the binocular structure. The focusing knob is associated with a braking means with adjustable braking effect and is provided with a braking drum. The cylindrical circumferential surface of the braking drum is associated rotatably about its longitudinal axis with the cylindrical circumferential surface of a braking ring, whose other cylindrical circumferential surface is associated by its circumferential surface with a collet of a clamping ring, which is with its rigid part seated in the housing which is fixedly mounted on the static shaft. The collet of the clamping ring is associated with the control of the pressure force on the cylindrical circumferential surface of the braking ring, the control of the gripping of the collet being coupled to a switch of stiffness of the focusing operation.