Abstract: A device for adjusting interpupillary distance is provided. The device for adjusting interpupillary distance includes an adjustment bottom, a housing, and an adjustment support. The housing is disposed on the adjustment bottom. The housing includes a base, a holder, and a deformation part disposed between the base and the holder. The holder moves relative to the base via the deformation part. The adjustment support is connected to the holder and the adjustment bottom.

Abstract: A visual target acquisition scope system including an adjustable connection between a zero magnification scope viewed by a first eye of a user and a power scope viewed by a second eye of the user. The system includes first and second movable sections connected and controlled by an adjustment locking mechanism. Using the system, while the user looks at an object through the zero magnification power scope with the first eye and looks at the object through the high power scope with the second eye, the target visible to the first eye is simultaneously visible to the second eye, so as to provide immediate acquisition and viewing of the object through the high power scope with the second eye.

Abstract: The invention aims at providing a pair of binoculars making it possible to easily perform a focusing operation and a diopter adjustment, and efficiently perform an assembling operation. The present invention provides a pair of binoculars having a pair of supporters for supporting adjustment lenses provided between a pair of ocular optical systems and a pair of objective optical systems so as to be capable of moving forward and backward along the optical axis, a focusing gear for performing a focusing operation by moving said pair of supporters forward or backward at the same time in the direction of optical axis, a diopter adjuster for performing a diopter adjustment by moving one supporter forward or backward in the direction of optical axis as keeping the other supporter stationary, and a focusing and diopter adjusting unit having a changeover gear for changing over the focusing gear and the diopter adjuster to each other.

Abstract: A binocular telescope comprises right and left slide plates, and right and left mount plates disposed on the right and left slide plates. Right and left telescopic optical systems are mounted on the right and left slide plates which can be moved to adjust interpupillary distance for a user. A part of the right telescopic optical system is mounted on the right mount plate, and a part of the left telescopic optical system is mounted on the left mount plate. The right and left mount plates are moved along the optical axes of the right and left telescopic optical systems, to perform a focusing operation. The right and left slide plates have straight portions extending parallel to the optical axes. The right and left mount plates have right and left guide shoes slidably engaged with the straight portions.

Abstract: First lens frame has first front and rear shaft bearings that engage with the first guiding shaft along the optical axis, and a second shaft bearing that engages with a second guiding shaft along the optical axis. The first front and rear shaft bearings are spaced apart from each other along the first guiding shaft. Second lens frame has third front and rear shaft bearings that engage with the second guiding shaft, spaced apart form each other, and fourth shaft bearing that engages with the first guiding shaft. The third front and rear shaft bearings are arranged with the second shaft bearing between them, and fourth shaft bearing is disposed between the first front and second shaft bearings.

Abstract: An improved ocular mounting assembly having a pair of ocular support arms which can be extended by sliding out of a box-section assembly housing for supporting a pair of ocular devices attached to the ends of the support arms. The improvement is a pair of stabilizers disposed inside the assembly housing and providing stability against rotational motion when the arms are extended. In one embodiment, the stabilizers are interference-fitted balls, retained in position by retainer holes in the assembly housing, and receding into recess cut-outs at the end of the support arms when the arms are fully retracted. In an alternate embodiment, the stabilizers are L-shaped, and can be either an integral part of the housing or bonded to it with adhesive.

Abstract: A binocular instrument according to the present invention basically comprises a binocular instrument body, a left-hand lens barrel supported by a supporting frame, a high-hand lens barrel supported by the body, a left-hand armor slidable in a pupil distance (distance between optical axis) adjusting direction and a right-hand armor fixed to the body. When the binocular instrument is switched from a non-using state to a using state, the left-hand armor is slid in the left direction, so that only the left-hand armor moves while the supporting frame is in the fixed condition, and the lenses are set at an open condition, thereby permitting the use of the binocular instrument. Thereafter, when the left-hand armor is slid in the same direction, the supporting frame is shifted together so that a pupil distance maximizing position is reached.

Abstract: A binocular includes two parallel telescope systems. First and second lens units belong to one of the telescope systems, so that the optical axis of the first lens unit is in line with the optical axis of the second lens unit. The first and second lens units are supported by first and second movable frames, respectively, which are supported by a common guide shaft extending in the direction of the optical axes.

Abstract: A binocular telescope provided with a pair of left and right lens-barrels respectively containing optical systems, a first guide shaft for supporting these lens-barrels in such a manner that the lens-barrels can slide in a direction perpendicular to the optical axes of the optical systems and can rotate, a second guide shaft for restraining the relative tilt of the lens-barrels around this first guide shaft in such a manner that the optical axes of the left and right optical systems become parallel to each other, a first rib for holding both ends of the first guide shaft by fitting upper and lower covers to each other, and a second rib for restraining the tilt of the optical axes of the entire lens-barrels around the first guide shaft.

Abstract: A binocular includes two parallel telescope systems. Each telescope system includes an objective system, an erecting system and an eyepiece system. The erecting system and the eyepiece system of each telescope system are part of a movable unit which is movable toward and away from a front-most lens of the objective system. The movable unit can be moved towards the front-most lens to a position in which an object cannot be viewed through the telescope system.

Abstract: A binocular includes two parallel telescope systems, two slide frames on which the telescope systems are respectively supported, and two shells, one fixed to each of the slide frames covering the telescope systems. The slide frames are supported by an I-shaped frame consisting of top and bottom members and a center block is provided between the top and bottom members. The slide frames between the top and bottom members so that the slide frames are slidable.

Abstract: Binoculars equipped with focus adjustment nut 53 to which left object lens holder 42 of the left optical system is linked, dioptric adjustment nut 61 to which right object lens holder 41 is linked and which is attached such that it may move relative to focus adjustment nut 53, and focus adjustment dial 51 and dioptric adjustment dial 63 to move said nuts, respectively. When dioptric adjustment dial 63 is operated, dioptric adjustment nut 61 moves along the optical axis, together with which movement right object lens holder 41 linked to dioptric adjustment nut 61 moves, whereby dioptric adjustment is carried out. Focus adjustment dial 51 is located on either the top or bottom surface of the binoculars, and dioptric adjustment dial 63 is located on the other surface.

Abstract: An interpupillary distance adjusting mechanism for use in a binocular telescope, having a pair of lens-barrels which contain lens optical systems, respectively, and are placed in parallel with each other. The interpupillary distance adjusting mechanism further has first and second guide shafts, which slidably guide the pair of lens-barrels in a direction substantially perpendicular to the direction of the optical axes of the lens optical systems, interpupillary distance adjusting springs for pushing the pair of lens-barrels in a sliding direction, and an interpupillary distance adjusting cam which can adjust an interpupillary distance by sliding the pair of lens-barrels along the guide shafts as the result of undergoing a pushing force from the interpupillary distance adjusting spring, of converting a part of the pushing force in a direction which intersects the sliding direction, and of moving the pair of lens-barrels by pushing the pair of lens-barrels against the first guide.

Abstract: To relieve fatigue of viewer's eyes, a binocular display system is equipped with a mechanical or electrical adjusting section for minimizing a separation between left and right virtual images for the left and right eyes. The adjusting section holds the arrangement of the four positions of left and right lenses (or curved mirrors) and left and right pictures produced by at least one display device in such a manner as to reduce the separation between the left and right virtual images of the left and right picture substantially to zero, and/or adjusts the arrangement of these four positions to move the left and right virtual images in a desired direction so that the left and right images remain optically coincident.

Abstract: An ANVIS 6 type of binocular night vision device includes a pair of night vision monocular scopes which adjustably depend from a support frame in front of a user's eyes. The support frame includes an interpupillary distance adjustment mechanism which allows placement of the monocular scopes to better achieve binocular vision with depth perception. The image quality of binocular vision afforded by the device is improved and made more durable by providing the monocular scope mounts with a dirt-shedding dry threaded engagement with their respective interpupillary adjustment shafts, as well as providing a laterally extended threaded engagement of these mounts with the adjustment shafts. As a result, wobble of the monocular scope mounts relative to the frame is significantly reduced, and wear of the component parts which over time contributes to increased wobble is also reduced.

Abstract: A night vision goggle device is fabricated for consumer use. The device employs interpupillary and diopter adjustments for each eye of the user. The combined adjustment mechanism incorporates manually operable control knobs located on the housing and one knob for each of the eye pieces. Each control knob is capable of moving both in a forward and rear mode and in a transverse mode. The knob can provide diopter focus adjustment for a front to back motion and for lateral movement or transverse movement the control provides for interpupillary adjustment. The movement of the knob and the removal of pressure or force from the knob enables the optical assemblies to be locked in position by a friction fit.

Abstract: An apparatus (10) for providing the coordinated rotation of two interrelated components (12, 14) includes first and second cam segment lobes (20, 22) each respectively associated with the interrelated components (12 14), the cam segment lobes (20, 22) are urged into rotatable contact with each other such that when the components (12, 14) are subjected to a torque the lateral distance therebetween is changed.

Abstract: A binocular night vision device includes a pair of night vision monocular scopes which adjustably depend from a support frame in front of a user's eyes. The support frame includes an interpupillary distance adjustment mechanism which allows non symmetrical placement of the monocular scopes to better achieve binocular vision with depth perception. Also, the adjustment mechanism allows adaptive duplicative use of identically the same component parts of the device on both the left and right sides of the support frame so that the number of different parts required for the device is reduced.