Abstract: The technology generally relates to a binocular having two tubes, which are connected to one another by means of a hinged bridge pivotable about a hinge axis for adjusting the interpupillary distance. Within each of the two tubes an axially displaceable focusing means is arranged and a common focusing device for displacing the focusing means is formed. The focusing device includes a housing and a focusing knob rotatable about a rotational axis and the rotational axis is arranged coaxially to the hinge axis. The focusing knob is rotationally coupled to a focusing gear and the focusing gear, in each case, comprises a push rod, by means of which the focusing gear is, in each case, coupled to one of the two focusing means. A longitudinal axis of the push rod encloses an acute angle with the hinge axis.

Abstract: The present invention relates to a prism module, a camera comprising same, and an image display device. A prism module, according to one embodiment of the present invention, comprises: a prism holder having a prism fixed to a first surface thereof; a yoke coupled to a second surface of the prism holder; a driving magnet seated on the yoke; a sensor magnet disposed on the yoke; a hall sensor disposed to be spaced apart from the sensor magnet; and a sensor magnet support member to which the sensor magnet is attached. Thereby, it is possible to precisely detect a magnetic field.

Abstract: A long-range optical apparatus, particularly a binocular having two tubes for accommodating long-range optical devices, includes a first folding bridge, a second folding bridge, and preferably a third folding bridge. The folding bridges are pivotably arranged between the tubes of the long-range optical device and each include a first and a second bridge element associated with each other and pivotable relative to each other. At least one folding bridge has a fit that prevents mechanical contact of the bridge elements to each other at least in regions of the pivoting range of the bridge elements.

Abstract: The binoculars include right and left optical systems including right and left image stabilizing lenses, a lens holding member holding the image stabilizing lenses and being movable in a plane orthogonal to an optical axis direction, first and second guiding members disposed between the lens holding member and a base member, a first guiding mechanism allowing rolling of a first ball in a first direction between the lens holding member and the first guiding member, a second guiding mechanism allowing rolling of a second ball in a second direction between the first and second guiding members. The binoculars further include a first biasing member applying a biasing force toward the optical axis direction to the first and second guiding members, and a second biasing member applying a biasing force toward a direction orthogonal to the optical axis direction to the second guiding member.

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: The two-stage variable power binoculars are configured so that, in right and left body tubes focus lenses are movably provided in the direction of optical axis, movable frames are movably provided in a direction so as to intersect with the optical axis, magnification switch lenses are respectively provided in the movable frames a magnification switch knob for moving the focus lenses and movable frames is provided in a center portion connecting the body tubes and the magnification switch knob is operated to move the movable frames so that the magnification switch lenses are disposed at either the high-magnification position on the optical axis or at the low-magnification position set back from the optical axis, and simultaneously, to move the focus lenses so that focus is adjusted.

Abstract: There is provided binoculars which include a pair of observation optical systems each having an objective optical system, an erecting optical system and an eyepiece optical system. The binoculars include a focusing mechanism that is used to move a part of observation optical systems for focusing, a convergence value compensating mechanism that compensates for a convergence value by displacing displaceable optical elements which are at least parts of the objective optical systems, respectively, in association with actuation of the focusing mechanism, and a light shielding mechanism configured to shield light for preventing light from entering through a clearance caused in accordance with displacement of the displaceable optical elements by actuation of the convergence value compensating mechanism.

Abstract: A viewing apparatus includes a viewing optical system having a positive objective optical system and a positive eyepiece optical system, an image of an object formed through the positive objective optical system being viewed through the positive eyepiece optical system; a photographing optical system, provided independently from the viewing optical system, for photographing the object image viewed through the positive eyepiece optical system; a first focusing mechanism for changing an image focal point of the object image formed through the positive objective optical system of the viewing optical system; a second focusing mechanism for changing an image focal point of an object image formed through the photographing optical system; an association mechanism which interconnects the first focusing mechanism with the second focusing mechanism; and an indicia indication optical system for selectively indicating the object image and an indicia image in a field of view viewing through the positive eyepiece optical s

Abstract: A binocular is constructed to include a bridge, the bridge having two rows of knuckles aligned at two opposite lateral sides thereof, two bodies respectively pivoted to the bridge at two sides, the bodies each having a row of knuckles respectively coupled to the knuckles of the bridge, and two pivot bolts respectively fastened to the knuckles of the bridge and the knuckles of the bodies to couple the bodies to the bridge, for enabling the bodies to be turned relative to the bridge to the desired angle.

Abstract: A connecting member is provided with a first, a second and a third arm which radially extend. A first hole is formed at an end of the first arm, and a second hole is formed at an end of the second arm. The centers of the first and second holes respectively coincide with optical axes of objective lenses. A pair of eyepiece groups are held by a pair of holders. The holders are rotatably held by the first and second holes, so that an interpupillary adjustment is carried out. A rotation ring axle is threadably engaged with a third hole formed at an end of the third arm. A guide shaft passes through a junction of the first, second and third arms. The connecting member is movable along optical axes of the eyepieces, so that a focusing operation is carried out.

Abstract: An optical device having a dioptric correction device comprises a reference image display unit which is placed in the optical path extending from an object image to the optical system. The reference image is used for dioptric correction. The left and right reference images are different and are displayed on the left and right reference image display units when dioptric correction is performed. The reference image display unit is placed at a predetermined position between the optical system and an image display unit. Since the reference image is positioned at the predetermined position, both of the image of the image display unit and the reference image may be seen clearly.

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 includes first and second swingable bodies respectively accommodating telescope systems. The binocular further includes two drive rings respectively provided to the swingable bodies and an operation knob. A transmission unit is provided to transmit the rotation of the operation knob to the drive rings. The transmission unit includes two pairs of a first gear and a second gear. The first gear and the second gear engage with each other so that a contact point of pitch circles thereof is located on each of the swing axis.

Abstract: A binocular includes two parallel telescope systems two swingable bodies respectively accommodating the telescope systems, a supporting body which swingably supports the swingable bodies so that the swingable bodies are respectively swingable about two parallel swing axes, two drive rings rotatably provided to the swingable bodies, an operation knob provided to the supporting body which, and two rotating bodies respectively linked to the drive rings. Each of the rotating bodies located across a border of the swingable body and the supporting body.

Abstract: A binocular includes two telescope systems with parallel axes, eyepiece frames, adjustable eye cups, operation controls positioned between the telescope systems, a focus adjustment mechanism, a diopter correction mechanism, and a magnifying-power-varying mechanism. The focus adjustment mechanism and diopter correction mechanism are arranged coaxially. The magnifying-power-varying mechanism includes rotatable cam rings and guide rings connected by a single connecting belt that moves perpendicular to the optical axes to rotate the cam rings. The connecting belt is supported and held in position so that it does not bind. The position of magnifying-power-varying lenses can be adjusted. During assembly, the magnifying-power-varying lenses can be mounted in the guide rings in a number of positions by rotating the lens frames holding the lenses about the optical axis and inserting sliders in linear guide grooves.

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 telescope includes adjustable optical components. The telescope has at least two telescope halves, respectively having an optical axis passing through an ocular and an objective. The adjustable optical components lie between the ocular and objective in a respective housing tube. The telescope has, between the two telescope halves, an axis that is essentially aligned parallel to the two optical axes, and in which a shaft body is arranged. The shaft body has a longitudinal slot in which an adjusting body, displaceable in the longitudinal axis of the shaft body, is arranged. This adjusting body is adjustable in the longitudinal direction from outside the telescope, its axial movement being coupled with the movable optical components for common focusing. A separate drive knob is arranged to change the axial position of one optical component in one telescope half to compensate for visual defects.

Abstract: A binocular comprising a binocular body, one or a pair of objective lens-barrel unit or units, a pair of eyepiece lens-barrels and a pair of image-erecting chambers. A pair of parallel optical axes pass through the objective lens-barrel unit or units. The image-erecting chambers are arranged between the objective lens-barrel unit or units and the eyepiece lens-barrels. The image-erecting chambers have incorporated therein their respective prism units for optically connecting the optical axes of the objective lens-barrel unit or units to respective optical axes of the eyepiece lens-barrel units. Each of the image-erecting chambers is associated with the binocular body for angular movement relative thereto about a corresponding one of the optical axes of the objective lens-barrel unit or units in such a manner that the optical axes of the respective eyepiece lens-barrel units are movable angularly toward and away from each other respectively about the optical axes of the objective lens-barrel unit or units.

Abstract: A binocular comprising a housing and a pair of first and second optical systems positioned on each side of a central line. Each optical system includes an object lens and ocular lens arranged at a front part and at a rear part of the housing respectively. Further, a light admitting window is placed on the central line between the first and second optical systems for admitting light from an object. A detection module, provided independently of the first and second optical systems is used to output electrical signals which represent the distance to the object. The detection module may include an optical path deflecting means for z-shapely deflecting the light from the light admitting window and for directing the light to a sensor. The binocular is compact and has a hand grip that is designed in order to be holdable and focusable by the use of a single hand.

Abstract: Binoculars capable of simultaneous individual focus and simultaneous individual focus mechanisms therefor are discussed. The binoculars of the present invention are preferably offset hinged in the bridging portion to accommodate various users and for compactness. In addition, the binoculars of the present invention simulate the ease of center focus and combat parallax that results from misalignment of the optical axis and the mechanical axis of each binocular tube.

Abstract: A binocular comprising a binocular body, one or a pair of objective lens-barrel unit or units, a pair of eyepiece lens-barrels and a pair of image-erecting chambers. A pair of parallel optical axes pass through the objective lens-barrel unit or units. The image-erecting chambers are arranged between the objective lens-barrel unit or units and the eyepiece lens-barrels. The image-erecting chambers have incorporated therein their respective prism units for optically connecting the optical axes of the objective lens-barrel unit or units to respective optical axes of the eyepiece lens-barrel units. Each of the image-erecting chambers is associated with the binocular body for angular movement relative thereto about a corresponding one of the optical axes of the objective lens-barrel unit or units in such a manner that the optical axes of the respective eyepiece lens-barrel units are movable angularly toward and away from each other respectively about the optical axes of the objective lens-barrel unit or units.

Abstract: A binocular comprising a binocular body, one or a pair of objective lens-barrel unit or units, a pair of eyepiece lens-barrels and a pair of image-erecting chambers. A pair of parallel optical axes pass through the objective lens-barrel unit or units. The image-erecting chambers are arranged between the objective lens-barrel unit or units and the eyepiece lens-barrels. The image-erecting chambers have incorporated therein their respective prism units for optically connecting the optical axes of the objective lens-barrel unit or units to respective optical axes of the eyepiece lens-barrel units. Each of the image-erecting chambers is associated with the binocular body for angular movement relative thereto about a corresponding one of the optical axes of the objective lens-barrel unit or units in such a manner that the optical axes of the respective eyepiece lens-barrel units are movable angularly toward and away from each other respectively about the optical axes of the objective lens-barrel unit or units.