Abstract: The invention relates to a viewing instrument (1) for observing the surroundings and aiming at targets in the surroundings of a vehicle, in particular an armored vehicle, comprising an eyepiece unit (2) and an objective unit (3) and comprising an optical waveguide bundle (4), which connects the objective unit (3) and the eyepiece unit (2) to each other, wherein the optical waveguide bundle (4) transmits an image of the surroundings, which is focused by the optical unit of the objective unit (3) onto the objective-side end of the optical waveguide bundle (4), to the eyepiece unit (2), wherein a reticle (6) is arranged in an intermediate image plane, in which the optical unit (5) of the eyepiece unit (2) focuses the transmitted image of the surroundings as an intermediate image, and is rotatable about the optical axis (7) relative to the intermediate image.

Abstract: A deployable thin-film mirror telescope comprises a base structure and a metering structure. The base structure houses a thin-film mirror, which can be rolled for stowage and unrolled for deployment. The metering structure is coupled to the base structure and can be folded for stowage and unfolded for deployment. In the deployed state, the unrolled thin-film mirror forms a primary minor for the telescope and the unfolded metering structure positions a secondary minor for the telescope.

Abstract: A telescopic tube includes an upper section tube and a lower section tube that are provided coaxially with each other. A plurality of connecting rods is provided between the upper and lower section tubes in parallel to the axis of the tube. Via the connecting rods, the upper section tube or the lower section tube can slide telescopically in the axial direction of the tube, thereby extending or retracting the tube.

Abstract: Described is a toy weapon with a periscope suitable for allowing a user to view obstructed objects through the periscope. The toy weapon comprises a weapon-shaped body with a trigger attached with the body. A user may activate the trigger with a finger to shoot the toy weapon. The periscope is attached with the body. The periscope includes an eye piece and a viewing piece, formed to allow a user to point the viewing piece at an object and view the object through the eye piece. In a desired aspect, the toy weapon is a water gun. In this aspect, a pressurized tank is attached with the trigger and the body. A pressure pump is connected with the pressurized tank to allow a user to build up water pressure within the tank. Depressing the trigger causes water stored within the tank to be expelled from the tank toward an object.

Abstract: A focusing device and a telescopic tube module thereof are for use with optical equipment. The focusing device has a base module and a telescopic tube module. The base module has a housing, a shaft, and at least two bearings. The telescopic tube module has a tubular body, a bottom reinforced member, and an upper reinforced member. The bottom reinforced member is a reinforced board. The upper reinforced member includes at least two reinforced strips. The tubular body is slidably disposed in the housing. The shaft supports the bottom reinforced member. The at least two bearings support the upper reinforced member. When the shaft drives the tubular body to move, the stability and the precision of the focusing device are improved, and the durability of the tubular body is improved.

Abstract: A periscope is mounted through the roof and into a room within a building, such as a house or the like, whereby people in the building can view scenes outside without leaving the building. The periscope extends from a room in the building, such as a living room of a house, upwardly through any overhead ceilings and floors and through the roof. Further, the periscope extends above the topmost roofline for increased distance viewing or viewing over obstacles. Using an eyepiece at the bottom of the periscope, a user can then see outside areas, including distant areas, while remaining in the comfort of his or her house. The building can be any permanent dwelling structure, such as a house, apartment, single story building, multistory building, condominium, cottage, cabin, beach house or the like, in a residential or commercial setting.

Abstract: An optical observation device is connected to an extendable and retractable snorkel tube for above-water observation during the snorkel travel (travel at periscope depth) of the submarine. The optical observation device is designed as a compact unit which consists of an optronics unit with a short-travel drive. The compact unit is assembled on the snorkel tube. At least one further compact unit is provided which comprises at least one communication arrangement with a short-travel drive, wherein this further compact unit is likewise provided on the snorkel tube.

Abstract: An all-reflective optical system includes an all-reflective afocal module, an all-reflective imaging module and an all-reflective switching structure being operated to direct a light beam through the afocal module and the imaging module. A first position of the switching structure directs the light beam to enter the first optical end of the afocal module and exit the second optical end of the afocal module, and thereafter to enter the input optical end of the imaging module. A second position of the switching structure directs the light beam to enter the second optical end of the afocal module and exit the first optical end of the afocal module, and thereafter to enter the input optical end of the imaging module. A third position of the switching structure directs the light beam to enter the input optical end of the imaging module so that the light beam completely bypasses the afocal module.

Abstract: An auxiliary optical unit attachable to an optical device for optional use therewith, includes: (a) an afocal teleconverter lens system having a predetermined magnification; (b) a laser range finder system for measuring and displaying the range to viewed object; and (c) a beam splitter located within the auxiliary optical unit such that when the auxiliary optical unit is attached to the optical device, both the displayed range and the object are concurrently viewable by the optical device. In the described preferred embodiment, the optical device is a telescopic gun sight to which the auxiliary optical unit is quickly attachable, to provide range display and increased magnification whenever desired.

Abstract: A viewing device (10) adapted to be held at eye level by an apparatus (14) comprises a housing (16) designed to fit within a tray (12) of the apparatus (14), two eyepieces (22) mounted to a proximal end (24) of the housing, a magnification mechanism (26), and a focus mechanism (28). The device (10) also includes either two objective lenses (18) or a video screen (118) mounted to a distal end (20) of the housing (16). The housing (16) preferably includes a substantially flat bottom (30) and two substantially flat sides (32) and is preferably secured to the tray (12) by a threaded fastener (36). The eyepieces (22) are preferably flexible and padded to provide a comfortable fit. The eyepieces (22) may be either contoured or substantially flat. The contoured eyepieces (22) fit against a user's face. The substantially flat eyepieces (22) fit against the user's eyeglasses.

Abstract: An optical sight for a combat vehicle, intended to be mounted in a weapon turret of the vehicle in order to make possible sight lines at elevations between roughly −10° and 90° of a weapon barrel mounted pivotably about a horizontal axis in the weapon turret. The sight comprises a lower standard sight unit, which deflects vertical incident light by 90° to an eyepiece, and a top mirror, located above the standard sight unit and pivotable in synchronism with elevating movements of the barrel, likewise about a horizontal axis. Positioned above the standard sight unit is a deflection prism which has an upper surface which faces the top mirror, is inclined at roughly 45° to the vertical and is designed to reflect incident light at an angle of roughly 45° to the surface and less, but to transmit light which is incident at roughly 90° to the surface.

Abstract: The present invention relates to a mounting system for mounting a camera, or other similar devices, for afocal photographic viewing through a telescope eyepiece providing an attachment for the telescope which allows attachment of the telescope eyepiece and a yoke which locks and supports a supporting rail along which is mounted a camera platform which is designed to be adjustable to bring the camera or other light receptor device into axial alignment with the eyepiece of the telescope quickly and to hold the device in fixed axial alignment. The invention permits adjustment with four aspects: lateral perpendicular mutually exclusive movement in two axes to the optical axis; longitudinal movement along the optical axis; and tilting or pivoting movement in one of the two lateral perpendicular axes.

Abstract: The invention relates to an optical sight for a combat vehicle, intended to be mounted in a weapon turret (26) of the vehicle in order to make possible sight lines at elevations between roughly −10° and 90° of a weapon barrel mounted pivotably about a horizontal axis in the weapon turret. The sight comprises a lower standard sight unit (12), which deflects vertical incident light by 90° to an eyepiece (16), and a top mirror (18), located above the standard sight unit (12) and pivotable in synchronism with elevating movements of the barrel, likewise about a horizontal axis. Positioned above the standard sight unit (12) is a deflection prism (20) which has an upper surface (22) which faces the top mirror, is inclined at roughly 45° to the vertical and is designed to reflect incident light at an angle of roughly 45° to the surface and less, but to transmit light which is incident at roughly 90° to the surface (22).

Abstract: An emergency supplementary vision device comprises a collapsible tube made of airtight material and having an expanded form and a compact stowed form; first and second clear members disposed at respective first and second ends of the tube to enable the user to see through said tube and observe a source of information at the other end while smoke or other particulate matter is in the environment; and a filter operably associated with the tube to filter the ambient atmosphere and fill the interior of said tube with clear air when said tube is expanded to its expanded form.

Abstract: An apparatus (10) for conveniently holding a viewing device (20) at the eye level of the user is provided, which allows the user to properly position the device (20) for ease of use without the need for continually holding the device (20), and also allows the device (20) to be pivoted to a retracted, non-use position. The apparatus (10) includes an attachment headband (16) which pivotally supports a pair of elongated, forwardly extending arms (12, 14); a tray (18) extends between and is secured to the arms (12, 14) and supports the device (20). The tray (18) is adjustable both vertically and in a fore and aft direction so that it can be precisely positioned for each individual user. A cap assembly (92) may be releasably secured to the apparatus (10) to cover the user's head and the device (20).

Abstract: A submarine periscope eyeguard housing assembly includes a viewing lens housing having a viewing lens aperture and viewing lens therein, first and second arm members fixed to the viewing lens housing and extending therefrom, a first blinder mounted on the first arm member, and a second blinder mounted on the second arm member. A first eyeguard is mounted on the first blinder for engagement by a left eye area of a viewer's head, and a second eyeguard is mounted on the second blinder for engagement by a right eye area of the viewer's head. A third eyeguard is rotatably mounted on the viewing lens housing and is adapted to be rotated into a selected one of a first position complementary to the first eyeguard and a second position complementary to the second eyeguard.

Abstract: A telescope is provided with a rearview mirror having a mirror surface opposite to the observer. The rearview mirror is located on both sides of the eyepiece, the objective lens, or the telescope body and can be rotatably attached, insertably attached, clipped, or fastened. The rearview mirror is parallel to or tilting to the lens of the eyepiece. The objective lens can be circular, square, or any other shape.

Abstract: An adjusting apparatus of a binocular telescope with a binocular body including a pair of juxtaposed telephoto optical systems is provided. The apparatus includes a diopter adjusting shaft for adjusting a difference in diopter between the pair of juxtaposed telephoto optical systems. The diopter is adjusted by rotating the diopter adjusting shaft to move an objective lens in one of the pair of juxtaposed telephoto optical systems. A focus adjusting shaft for adjusting a focus of the optical systems is also provided. The focus is adjusted by moving the focus adjusting shaft in a direction parallel to an optical axis. The focus adjusting shaft rotates the diopter adjusting shaft to move the objective lenses of the pair of optical systems in an integral manner in an optical axis direction. An operation member for rotating the diopter adjusting shaft and a connecting member for connecting the diopter adjusting shaft and the operating member are provided.

Abstract: Headgear apparatus allows a viewer to see objects in a periscopic direction and a normal direction simultaneously. A periscope is mounted to a headpiece that is easily supported by the viewers head. The periscope has movable mirrors and an extending periscope section to allow the viewer to change the angle of the periscopic view relative to a plane containing a normal line of sight and the peripheral distance of the periscopic view, respectively. The apparatus further has a sectional periscope, whereby sections containing the reflective elements of the periscope can be rotated relative to each other and change the periscopic view in the plane of the forward line of sight. The head gear apparatus is adapted to a mask or an underwater mask that allows a viewer to see objects in a periscopic direction and a forward direction in diverse environments such as under water.

Abstract: A can telescope includes a can being of a container having a front end and a back end, a removable lens cap at the back end and a removable can lid also at the back end, the can being that of a pop or soda can. The can telescope also includes a base tubular section which is smaller than the container and which is secured inside the container, and further includes three telescopic tubular sections in which one slides into and is extended from another. The container has a storage compartment inside thereof, which is defined as being between the side wall of the container and the side wall of the base tubular section. The storage compartment can be accessed through the back end of the container upon removal of the removable can lid. Objects and liquids can be stored in the storage compartment. When not in use, the can telescope has the appearance that of a pop or soda can and is an ideal souvenir.

Abstract: A binocular incorporates a focusing and diopter correction mechanism having a common shaft, whereby the diopter adjustment is performed by rotation of the shaft and the focusing operation is performed by axial movement of the shaft. The lens-moving portions of the focusing/diopter adjustment mechanism are in a cavity having an access hole, in which the shaft enters the access hole through a water-tight seal to control the lens-moving portions of the adjustment mechanism. The binocular also incorporates a strap attaching mechanism having a spring-loaded clip and groove, wherein a flanged pin provided to a strap end is pushed past the clip into the groove, and the clip returns under the bias of the spring to hold the flanged pin in the groove. Also included is an eyecup adjustment mechanism having two positions defined by click-stops, wherein the eyecups are not rotatable, but are longitudinally slidable relative to corresponding support barrels.

Abstract: In the controlled and stabilized platform (1) comprising a plurality of optical apparatuses, the optical apparatuses (8, 9, 10) are mounted in a casing (7) which is pivotable about a sight axis (12) in a bearing (13) which is pivotable about a bearing axis (14), the casing (7) and the bearing (13) being controlled about their axes (12) and (14) by motors (40) and (38) actuated by detectors measuring variations in the angular position of a stabilized input mirror (11) which reflects radiations going to the optical apparatuses or coming from the latter.

Abstract: A resetting mechanism for an electronic theodolite of the present invention is comprised of a horizontal shaft for vertically turning a telescope, a first cam provided at one end of the horizontal shaft, and a lock lever limited by the first cam. A second cam is locked or released by the lock lever, and operates a lock member. A lock concave provided on the telescope is locked by the lock member when the telescope is turned to a fully down, locked position. Also an encoder is set to a zero position when the telescope is turned to a fully down, locked position.

Abstract: A periscope structure is mounted to a door assembly to accommodate individuals restricted relative to standing, wherein the periscope structure is vertically adjustable and is arranged for ease of mounting to the associated door structure employing a mounting housing organization.