Abstract: This invention discloses a lens apparatus that can surely drive a barrier member by rotating a driving member. A lens apparatus according to this invention comprises a lens forming an optical image, a barrier member which can be moved open and close, a driving member that drives the barrier member to an open position by rotating in one direction around an optical axis, and drives the barrier member to a close position by rotating in another direction around the optical axis, an energizing member energizing the driving member in one direction, and a barrel which is constructed around the optical axis. The barrel has a first guide portion rotating the driving member in the one direction, and a second guide portion rotating the driving member in the other direction according to a relative position change with the driving member with resisting an energizing force of the energizing member.

Abstract: A camera includes a lens support frame which supports a photographing lens group; an outer lens barrel which is provided on the front end thereof with a photographing aperture through which the lens support frame is moved; a lens barrier mechanism which opens and closes the photographing aperture of the outer lens barrel; a lens drive mechanism which moves the lens support frame in the outer lens barrel between a forward movement extremity in which the front end of the lens support frame is located in front of the photographing opening in an optical axis direction, and a rearward movement extremity in which the front end of the lens support frame is located behind the photographing aperture; and a barrier detection device for detecting the opening state of the lens barrier mechanism, based on an amount of movement of the lens support frame in the optical axis direction via the lens drive mechanism.

Abstract: To provide a display panel, such as a PDP, that can reduce noise caused by a collision sound which occurs when a front panel member and a back panel member vibrate while the display panel is being driven. Projections (21) are provided on a surface of a first panel member facing a second panel member. The first panel member and the second panel member are connected to each other by a connecting material in areas (23) where the projections intersect barrier ribs (18). In this way, noise (noise level) caused by a collision sound which occurs when the front panel member and the back panel member vibrate while the display panel is being driven can be reduced.

Abstract: A water-resistant scope shade is provided having a sun shielding barrel which includes a barrel grasping collar, a barrel body, and a pivotal hook affixed to the barrel. The sun shielding barrel is removably attached to a sighting end of a telescopic sight of a rifle or other optical device. The pivotal hood includes lenses of a circular configuration to be fittingly received on a collar of the pivoting hood. A second embodiment has both a pivoting hood housing the lens and a pivoted cover for protecting the lens in the installed position.

Abstract: A medical instrument arrangement includes an operation microscope system (100) and a carrier unit (101) carrying the operation microscope (102). The medical instrument arrangement is at least partially covered by a drape (110). The air inside the drape (110) is removed by a suction unit. The drape (110) is fixed to a portion of the carrier unit (101) at a collar (115). By operating the suction unit at different suction rates, disturbing vibrations of the system during a surgical procedure can be minimized.

Abstract: The invention is a combination optics cover and extendable baffle. One version has at least one flap repositioned from a folded covering position to an extended baffle position. Each flap is repositioned to the extended position by a means for deployment when freed from a restraint implement. Another version has an inner baffle slideably encased axially within an outer baffle. The inner baffle is urged to telescope axially outward from a retracted position to a fully extended position by a deployment implement freed from a restraint implement. The abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: An arrangement for rotatable adjustment of a cap on an eyepiece housing with a stationary pin pointing radially outward from the eyepiece housing and a groove which is assigned to the pin, arranged on the inner side of the cap and rises in the axial direction, is characterized in that, in a plane at right angles to the longitudinal axis of the eyepiece housing, three pins are arranged on the latter, the heads of which pins have at least approximately the same spacing from the longitudinal axis, and in that the sliding bottom of the groove assigned to each pin has a smaller spacing in relation thereto, so that the cap bears against the pins under prestress.

Abstract: A pair of binoculars, a telescope or the like, comprising a protective lens cap articulated to the front of the lens, is characterized in that a pivot joint arrangement is formed between an edge of the lens and the protective lens cap, in use having a substantially horizontal pivot axis and a substantially vertical pivot axis.

Abstract: In a lens protector, a lens barrier is divided into two blades. The two blades are mounted on a shaft in such a manner that the two blades are able to revolve around the shaft. A revolving guide for one of the two blades is provided on a cabinet. A revolving guide for another of the two blades is provided along a blade surface of said one blade.

Abstract: An anti-fogging mirror assembly (10) comprises a mirrored sheet (12), a second sheet (16), and a bonding medium (18) adapted to bond together the mirrored sheet (12) and the second sheet (16). The bonding medium (18) has embedded In it a heating pad (20) in the form of an electrical resistance heating element, which, when it Is supplied with electrical energy, heats the mirrored sheet (12) such that any moisture on the mirrored sheet (12) is be evaporated, and condensation of moisture on the mirrored sheet (12) is prevented. The heating element (20) may be in the form of a polyester substrate printed with a conductive ink, and electrical energy to the heating element (20) may be supplied through upper (68) and lower (26) bus bars. A thermostat (54) may be provided such that when the heating element (20) reaches a predetermined temperature, electrical energy is no longer supplied to the heating element (20).

Abstract: In an arrangement for storing and transporting at least one optical component, it is the object of the invention to protect the optical components from contamination not only during their storage and transport, but also when installing them in operative condition in the optical projection beam path so as to ensure their readiness for immediate operation. This object is met in that every optical component is fastened in an aligned manner to a carrier that is provided in a vessel, and a manipulator acts on the carrier to transfer the carrier into an optical beam path enclosed by a cleanroom through an airlock opening which is formed when the vessel door is open. The arrangement can be used particularly when optics must be stored and manipulated so as to be protected from environmental influences.

Abstract: A shield assembly for a built-in lens set is introduced to a lens set built in a housing, in which the lens set has an optical head and the housing provides an aperture with respective to the optical head. A protrusive enclosure surrounding the aperture protrudes toward the optical head and is spaced from the optical head by a variable slim spacing. The shield assembly includes a shield ring for sleeving both the optical head and the protrusive enclosure and an elastic connecting unit for bridging the shield ring and the housing. By providing the shield ring to enclose always the spacing and the elastic connecting unit to engage elastically the lens set with the housing, the lens set can be prevented from dust-contaminating through the aperture, aged axial offsetting problem, and poor focus-adjusting performance caused by backlash existing in a driving mechanism.

Abstract: It is an object of the present invention to provide a camera having its size reduced by improving the arrangement of a backlash compensating mechanism and a lens barrier opening and closing mechanism for a barrel that can be extended and collapsed. According to the present invention, a shared mechanism is used to open a lens barrier and to compensate backlash occurring between a first lens group holding frame and a second lens group holding group.

Abstract: A lens cap assembly for a camera includes a front panel disposed proximal to a subject, the front panel being provided with a first optical path and a supporting portion projected toward a film or an image-photographing portion, at least a pair of barriers coupled to the front panel by a hinge for opening and closing the first optical path of the front panel, plural elastic members disposed on the front panel to bias the barriers to an open position, a barrier cover fixed to the front panel to enclose the barriers to prevent the barriers from being deviated from an optical axis, the barrier cover being provided with a second optical path, a driving lever rotatably coupled to the barrier cover, the driving lever being provided with a third optical path and a projection depressing the barriers to a closed position, and a power transmission device for converting a linear motion of the barrel into a rotational motion of the driving lever or for operating a bar in a direction for closing the barriers.

Abstract: The invention provides a camera including a hold barrel member which holds an image-taking optical unit; a barrier member, disposed on a subject side of the hold barrel member, which opens or closes a substantially rectangular opening; and a barrier driving member, disposed between the barrier member and the hold barrel member, which drives the barrier member in such a way as to rotate on an optical axis of the image-taking optical unit. In a state in which the barrier member opens the opening, the hold barrel member forms a long side part of the opening, and the barrier driving member forms a short side part of the opening.

Abstract: A lens cap (20) for an optical module includes a housing (21) and an optical lens (22). The housing includes a sidewall (23) and a top wall (24) connecting with the sidewall. The top wall has an inclined portion (241) defining a through-hole (243) therein, and the through-hole includes a window (244) and an injection void (245) connecting with window. The optical lens is made of optical plastic and is formed in the through-hole using insert-molding. The optical lens transmits and reflects light.

Abstract: A protective, open-ended, sleeve, FIG. #2, which is easily slipped over the ends of a rifle telescopic sight, hereafter called a ‘boot’. The portion of the boot which slips over the end of the telescope, (4), fits snugly enough for a firm fit. Where the boot extends past the end of the telescope tube it tapers, (5), to a smaller diameter, providing a barrier to rain drops which might reach the lens of the telescope, thus ensuring a constant clear sight picture through the telescope for the hunter. This boot will ensure that there will be no delay in taking that split-second shot at game that may not provide another shot otherwise.

Abstract: A disposable protective cap and method for covering a probe in a spectral imaging apparatus are provided. The cap protects the probe from direct contact with a subject's tissues. The cap is hollow and elongated to cover the probe, having an open end and a closed end. At the closed end is an optically transparent face. This permits light to be transmitted from the probe through the closed end of the cap with minimal optical distortion. At the open end of the cap are components which interact with the probe to assure that the cap is not used more than one time. These components can use electrical interaction to assure only a single disposable use of the cap. Mechanically interacting components can also be used, either alone or in combination with electrically interacting components to assure only a single use of the cap.

Abstract: The present invention is directed to an optical measuring device having a 3-D measuring set-up for measuring the shapes of test object (O) surfaces in three dimensions, and having projection optics including an objective optics, the test object being illuminated by a light source (SLD) via an illuminating beam using an illuminating optics. A rapid, highly resolving measurement of surface shapes which are nearly radially symmetric is achieved by designing the objective optics as image-flattening optics for covering (measuring) and flattening a curved surface area or as panoramic optics (RO) for measuring a radially symmetric surface area that encircles 360°.

Abstract: An arrangement for rotatable adjustment of a cap on an eyepiece housing with a stationary pin pointing radially outward from the eyepiece housing and a groove which is assigned to the pin, arranged on the inner side of the cap and rises in the axial direction, is characterized in that, in a plane at right angles to the longitudinal axis of the eyepiece housing, three pins are arranged on the latter, the heads of which pins have at least approximately the same spacing from the longitudinal axis, and in that the sliding bottom of the groove assigned to each pin has a smaller spacing in relation thereto, so that the cap bears against the pins under prestress.

Abstract: The invention is a single device comprised of both an eye enhancer cover and a shade collector the two being connected to each other by two or more elastic band fasteners so it can be removably mounted on a sighting telescopic sight and can be easily stored when not in use. The object of the device is to optimize sighting of a target area under adverse lighting conditions with a single device.

Abstract: A water-resistant scope shade is provided having a sun shielding barrel which includes a barrel grasping collar, a barrel body, and a pivotal hook affixed to the barrel. The sun shielding barrel is removably attached to a sighting end of a telescopic sight of a rifle or other optical device. The pivotal hood includes lenses of a circular configuration to be fittingly received on a collar of the pivoting hood. A second embodiment has both a pivoting hood housing the lens and a pivoted cover for protecting the lens in the installed position.

Abstract: This invention is an anti-glare device comprising a flexible, soft material that is rolled as a sleeve to be wrapped around, while projecting from an end of an objective lens housing such as is found on telescopic scopes, spotting scopes, binoculars, cameras and video cameras to prevent sun glare on the lens or lenses of such devices regardless of the angle of the sun rays otherwise engaging such lens or lenses.

Abstract: An optical apparatus includes a barrier member disposed in front of a lens and arranged to be openable and closable, an urging member arranged to exert an urging force on the barrier member, and an abutting member arranged to be capable of abutting on the urging member, wherein, when the abutting member abuts on the urging member, the urging member exerts on the barrier member an urging force acting in a direction of closing the barrier member, and, when the abutting member does not abut on the urging member, the urging member exerts on the barrier member an urging force acting in a direction of opening the barrier member.

Abstract: Binoculars, one form of telescope, in accordance with the present invention have a lens frame drive responsive to manipulating a focusing ring. Lens frames are driven to advance or withdrawn by means of the lens frame drive. The lens frames are driven to thrust from their positions of collapse to other positions, at which they enable observation, by manipulating the focusing ring. At this time, lens barriers covering the front surfaces of the lens frames are pressed by means of projections, and thus driven from positions at which they block objectives to other positions at which they free the objectives. Withdrawal of the lens barriers and thrusting of the lens frames can be achieved merely by manipulating the focusing ring. Changing the lens barriers from their positions of protection to their positions of withdrawal can be achieved with the simple manipulation.

Abstract: A water-resistant scope shade is provided having a sun shielding barrel which includes a barrel grasping collar and a barrel body, and a pivotal hood affixed to the barrel. The sun shielding barrel is removably attached to a sighting end of a telescopic sight of a rifle.pivotal hood includes lens of a circular configuration to be fittingly received on a collar of the pivoting hood.

Abstract: A display apparatus of the projection type is improved in that, when a lamp valve breaks or is to be replaced, glass fragments and so forth thereof are prevented from being scattered into the inside of an outer housing of a projector apparatus through a cooling air intake port in a portion of the outer casing below the lamp valve and a comparatively small number of cooling fans are used to reduce the size and the weight of the overall display apparatus while optical modulation elements, a light source element and so forth can be forcibly cooled in a high efficiency. Cooling air blasted from an air blasting fan is blasted through an air blasting duct to three spatial optical modulation elements, a PS conversion element and a discharge lamp to forcibly air-cool the elements. A lamp box in which the light source is accommodated and which is removably mounted in an outer housing has a cooling air intake port through which cooling air is taken in to the light source.

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 removable, reusable cover constructed such that its geometry matches the geometry of the active region of a projection electron lithography mask to be protected and does not etch in the plasma environment used to remove a photoresist. The cover protects the active region of the projection electron lithography mask, but does not contact the active region. A technique for fabricating a projection electron lithography mask utilizing the removable, reusable cover, where the geometry of the cover is matched to the geometry of an active region of the projection electron lithography mask to be protected. During fabrication of the projection electron lithography mask, the cover protects the active region of the projection electron lithography mask from the plasma environment, but does not contact the active region.

Abstract: A camera is provided with a lens barrier for covering and uncovering an opening which is formed in a front face of the camera and is for exposing a taking lens. The lens barrier protects the taking lens when the camera is not used. The lens barrier is driven by a motor. This motor is controlled by a motor control unit relative to its rotational direction (forward and backward direction), its rotational amount and its rotational speed. As the motor, a DC motor is used. Into this DC motor, drive-pulse trains having different duty factor are inputted to control the rotational speed. Owing to this, an operation speed of the lens barrier is controlled so as to be faster when the lens barrier opens the opening, and so as to be slower when the lens barrier closes the opening.

Abstract: In an eyepiece cup for binoculars, which fits substantially tightly in particular around a user's eyes, provision is made for air admission holes.

Abstract: A microscope for operation body 1 having an objective lens 4 and eyepieces 5 is combined with a cap that is capable of covering the entire part of the microscope body 1 and which is made of a sterilizable elastic material such as rubber. A retaining portion 7 projecting to retain the cap is provided on the microscope body 1 and a mounting portion engageable with the retaining portion 7 is provided on the cap.

Abstract: A fiber optic module includes front adapters for connection to fiber optic connectors, and rear adapters for connection to fiber optic connectors. The module includes two circuits having passive optical couplers inside, and adapters exposed along the front and the rear of the module. The module is usable in cross-connect applications with itself or with other modules. The adapters are selectively connectable to fiber optic connectors. The front adapters of the module include two receive input ports and two transmit output ports. The front of the module also includes two visual indicators, one for each circuit. The visual indicators include a lens cap at least partially transparent to visual light in light communication with an optical fiber. The rear adapters of the module include two transmit input ports and two transmit output ports. Monitor ports are also located on the rear for both the transmit and receive signals.

Abstract: A cover for tripod base fender mounted truck mirrors of flexible material having a closed end and an open end. The closed end and the open end are about the size of the tripod base. The open end and closed end are spaced apart by generally straight sides. The sides are longer than the ends when the cover is collapsed flat. The sides are generally parallel. The cover adjacent the open end is selectively expandable to encompass tripod bases of several different sizes.

Abstract: An optical apparatus according to the present invention has an eyepiece side body internally equipped with a diopter adjusting ring for diopter adjustment of an eyepiece, a barrier, an eyecup ring including a driving pin for opening and closing the barrier and a cam groove for advancing and retreating an eyecup fitted in an eyecup ring. When the eyecup ring is rotated counterclockwise, the barrier is rotated up to an opening position, and when further rotated, the eyecup is twisted up. When operated in the reverse direction, the eyecup is drawn in and the barrier is rotated to a closing position. It is possible to easily accomplish the moving and opening/closing operations for protecting a hood member (eyecup) and an optical system (eyepiece), and the structures thereof are simple.

Abstract: A protective window assembly and its use with a focusing assembly lens in a laser beam generating apparatus, the protective window assembly contains a window with apertures for protecting the focusing lens against damaging and cooling the focusing lens.

Abstract: In an eyepiece cup for binoculars, which fits substantially tightly in particular around a user's eyes, provision is made for air admission holes.

Abstract: A removable, reusable cover constructed such that its geometry matches the geometry of the active region of a projection electron lithography mask to be protected and does not etch in the plasma environment used to remove a photoresist. The cover protects the active region of the projection electron lithography mask, but does not contact the active region. A technique for fabricating a projection electron lithography mask utilizing the removable, reusable cover, where the geometry of the cover is matched to the geometry of an active region of the projection electron lithography mask to be protected. During fabrication of the projection electron lithography mask, the cover protects the active region of the projection electron lithography mask from the plasma environment, but does not contact the active region.

Abstract: A stereomicroscope having a closing member for protecting lenses. The stereomicroscope comprises a microscope unit having a microscope body that holds eyepiece lens groups and objective lens groups, a base for supporting the microscope unit, and a focusing unit that connects the microscope unit movably up and down to the base. The microscope body is provided with the closing member to close an opening for the objective lens groups.

Abstract: An emergency visual assistance device which provides an operator at an operator station access to operationally necessary visual information when that visual information is obscured by smoke or other vision-obstructing matter, and a method for using that device. In the device's basic version, a transparent panel is attached to either end of an elongated rigid hollow spacer tube in a manner which provides a substantially airtight seal. The preferred embodiment includes flexible skirts at each end of the device, and an illumination means mounted within the device. The flexible skirts serve mainly to exclude smoke from the operator's visual pathway, and the illumination means provides light for illuminating the visual information.

Abstract: A dust cover for protecting a sleeve housing of a fiber optic adapter having opposed interior sidewalls is provided, which includes an elongate member having first and second opposed ends wherein the elongate member has a multifaceted outer surface with at least one planar surface for engaging the opposed interior sidewalls of the fiber optic adapter. The first end of the elongate member is sized and shaped to align the elongate member within the fiber optic adapter and receive the sleeve housing. The first end of the elongate member also includes a longitudinally extending central bore for receiving the sleeve housing and a plurality of landings, which are contiguous the longitudinally extending bore, and which are tapered toward the second end. The landings securely hold the sleeve housing within the central bore of the elongate member.

Abstract: An eyepiece cover for binoculars has two cover parts (1, 2) connected by a joint (3). By rotation around the joint (3) the cover parts (1, 2) are adjusted to the distance between the eyepieces. The adjusted distance is fixed by the friction in the joint, whereby said friction can also be formed by a catch.

Abstract: Binoculars has a pair of body units, lens cover members and lens cover member control mechanism. The body units have a lens each and are relatively movable between a first position in which the body units are not used and a second position in which the body units are used. The lens cover members are movable, at the fronts of the body units, between a protective position in which the respective lenses are not exposed to an outside and a retracted position in which the respective lenses are exposed to the outside. The lens cover member control mechanism latches the lens cover member to the protective position when the units bodies are set to a first position in which they are not used and releases the latching of the lens cover members in interlock with the movement of the body units from the first position to the second position and, by doing so, moves the lens cover members to the retracted position.

Abstract: For use with a surgical microscope having an objective lens barrel protruding therefrom, drapes, methods of draping the microscope and methods of manufacturing the drapes. In one embodiment, a drape includes: (1) a sheet, having a sheet aperture therethrough, that covers at least a portion of the surgical microscope, (2) a rigid, planar seal mount, coupled to the sheet and having a mount aperture therethrough that aligns with the sheet aperture and (3) an elastomeric sheet seal, coupled to the planar seal mount and having a dilatable seal aperture therethrough that has a constricted diameter less than the mount aperture, aligns with the mount aperture, expands to receive the objective lens barrel therethrough and elastically constricts about the objective lens barrel.

Abstract: Binoculars include a pair of lens barrels, each barrel having an optical system, a flexible lens barrier which travels between a protective position for protecting the optical system of each of the lens barrels and a position that is retracted from the field of view of the optical system, and a drive member for moving the flexible lens barrier between the protective position and the retracted position.

Abstract: A sterile drape system for a surgical microscope includes an adapter ring which is attached around the outside diameter of the objective lens of the microscope, to provide a standard or uniform outside diameter mounting surface. A drape lens is contained within a drape ring. A sterile drape is attached to the drape ring. The drape ring is frictionally engaged onto the outside diameter of the adapter ring and the drape pulled over the microscope. A lens ring having a primary lens is attached to the drape ring with a quick disconnect fitting. The sterile drape system eliminates the need to inventory multiple surgical microscope drapes and reduces waste resulting from the selection of a drape not matching the surgical microscope to be used.

Abstract: A binocular includes two telescope systems with parallel axes, eyepiece frames, adjustable eye cups, operation controls placed between the telescope systems, a focus adjustment mechanism, a diopter correction mechanism, and a magnifying-power-varying mechanism. 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 frame of the rearmost lens of each eyepiece optical system includes an end surface facing a user that has a predetermined concave curvature. An eye cup locking mechanism is provided that securely locks each eye cup to a respective barrel of the binocular.

Abstract: A monocular night vision device comprising an objective lens assembly for receiving low intensity light; an image intensifier assembly comprising a variable gain image intensifier tube having an adjustable potentiometer mounted external to the tube for converting the low intensity light into a visible output image; a single eyepiece lens assembly for viewing the output image from the image intensifier assembly; and a non-metallic housing for receiving the objective lens assembly, image intensifier assembly, and eyepiece lens assembly, wherein the housing aligns the objective lens assembly with the image intensifier assembly and the eyepiece lens assembly along an optical axis.

Abstract: A protective window assembly and its use with a focusing assembly lens in a laser beam generating apparatus, the protective window assembly contains a window to protect the focusing lens against contamination and the like.

Abstract: A protection cover device and a protection-cover-equipped apparatus each comprise a protection cover, a moving member, and an elastic member which is incorporated into an inside of the protection cover and causes the protection cover to move in association with a movement of the moving member.