Abstract: An optical box for an optical scanner includes an optical housing and a lid. The optical housing has an opening and a side wall surrounding the opening. The side wall includes inward recessed parts, each of which has a protrusion formed on its outer side. The protrusion can engage with the lid. The lid can so engage with the optical housing as to cover the opening of the housing. The lid has a pair of dust guard walls, between which the whole side wall of the optical housing is sandwiched when the lid is in engagement with the housing.

Abstract: A shutter opening and closing apparatus for protecting a projection lens of a beam projector, wherein a shutter member is provided at an exterior case for selectively opening and closing an opening for exposing the light output surface of the projection lens and a driving unit mounted separately from the shutter member for driving the shutter member whereby the apparatus can be used as a wall hanging slim beam projector or a stand-up type slim beam projector capable of operating with a reduced consumption of electricity because of its compact, light-weight construction.

Abstract: What is disclosed is a removable cover for a camera lens. The lens cover is generally circular and is adapted to cover the front element of a camera lens. The lens cover is fabricated from an elastic material so as to fit tightly on the end of a camera lens.

Abstract: A system for protecting an emitter/receiver device, including a cover and an active material actuator operable to selectively cause the cover to move between default protective and open positions, wherein the actuator includes at least one active material element, such as an SMA wire configured to cause the retraction of the cover and present a heating net when activated, and an activation signal source, and preferably further including at least one pulley and/or jack mechanism configured to redirect a displacement force vector, synchronization means, an antagonistic element for biasing the cover towards the protective or open position, and a controller presenting overheating protection through control logic.

Abstract: A universal multifunctional cover for a quick-acquisition optical sight in the form of a box-like casing with an open front end, which in the sight-closing position of the cover is located in front of the optical lens, and with a rear end closed with a transparent medium. The cover is provided with a frame that supports an optical filter and has a radial outward projection that can be used as a foresight. The frame is pivotally supported by stretchable resilient members such as rubber strings so that the frame with the foresight and the filter can be switched between the following three positions: a first position in which the frame rests on the box-like casing, a second position in which the frame is installed in front of the optical lens with the foresight projecting upward, and a third position in which the frame is installed in front of the optical lens with the foresight projecting downward and closing the sensor.

Abstract: A lens barrier mechanism of a lens barrel includes a cam ring including a forward-projecting portion; a linearly movable barrel provided outside the cam ring and moves linearly by rotating the cam ring; a barrier blade provided in the linearly movable barrel and movable in an operating plane orthogonal to the optical axis to open and close an opening at the front of the linearly movable barrel; and a barrier drive mechanism which opens and shuts the barrier blade when the lens barrel moves from/to the accommodated state to/from the ready-to-photograph state, respectively. A range of opening/shutting operation of the barrier blade extends radially outside an inner periphery of the forward-projecting portion. In the accommodated state, the forward-projecting portion intersects the operating plane of the barrier blade but is positioned outside the range of opening/shutting operation of the barrier blade.

Abstract: An electric dust-proof device includes a driving mechanism disposed on a base seat unit, and a dust-proof plate driven by the drive mechanism. The driving mechanism includes a power unit, a drive unit driven by the power unit, a driving seat driven by the drive unit, and a driven seat driven by the driving seat. The dust-proof plate is driven by the driven seat to move between an open position and a close position.

Abstract: The dustproof panel includes: (a) a dustproof plate, which has a size covering a screen and extending to a frame member, and whose portion opposing the screen has transparent properties; (b) a frame-shaped dustproof filter formed by attaching a foam body having shrinking properties and containing pores finer than dust particles to a rear surface of the dustproof plate, the attachment being made without gaps therebetween in a frame shape along the edge of the dustproof plate, and the foam body abutting against the frame member; and (c) an attachment/detachment body having a first constituent element attached to the rear surface of the dustproof plate along an inner circumference of the frame-shaped dustproof filter and a second constituent element attached to a front surface of the frame member so as to oppose the first constituent element, the first constituent element and the second constituent element being mutually attachable and detachable.

Abstract: A lens cap device having a cap protecting device, an actuating device, and a lens cap. The cap protecting device has a protecting cap with a lens exposure hole. The actuating device has a push element and an actuating element. The push element is slidably disposed on the cap protecting device. One end of the actuating element is pivotally connected on the cap protecting device to form a pivot point. The actuating element and the push element are linked together. The lens cap is slidably mounted on the cap protecting device. The lens cap is pivotally connected with the other end of the actuating element. The lens cap is driven by the actuating element to cover or open the lens exposure hole.

Abstract: A lens cover assembly (200) mounted in an electronic device (300) includes a lens cover (30), and a frame (20). The lens cover includes a base (32), and a column (34) extending from a central area of the base. The base has at least one notch (36) defined therein. The frame has a stepped hole (26) defined by a first circumferential wall (262), a second circumferential wall (264), and a connecting surface (266) connecting the first circumferential wall to the second circumferential wall. At least two blocks (28) extend from the first circumferential wall and overlie the connecting surface. In assembly, the lens cover is received in the stepped hole. Then the base is rotated relative to the frame about an axis of the stepped hole so that the base is sandwiched between the blocks and connecting surface to lock the lens cover in the frame.

Abstract: The present invention relates to a remote-controlled telescope lens cover and a telescope fitted with the same.

Abstract: A lens cover apparatus comprises a mounting structure, a lens cover, a pivot joint structure, and a spring. The mounting structure is configured for securing the lens cover apparatus to a support structure. The pivot joint structure is coupled between the mounting structure and the lens cover and configured for allowing multi-axis articulation of the lens cover with respect to the mounting structure. The spring is coupled between the pivot joint structure and the lens cover. The spring and the pivot joint structure are jointly configured for causing spring-biased multi-axis articulation of the lens cover between a use position thereof and a stowed position thereof in response to manual initiation of the articulation.

Abstract: A magnetic sliding door structure comprises a first and a second magnetic elements attracting each other and disposed on a shell body of a camera and a sliding door, a linkage member disposed below the sliding door, and a third magnetic element disposed at two ends of the linkage member. The third magnetic element repels from the first and second magnetic elements. When one end of the linkage member tilts, the third magnetic element at the other end will enter between the first magnetic element and the second magnetic element to make the sliding door slide toward one side through the repulsive forces between them. This sliding door structure functions based on the physical properties of magnet to avoid complicated gear and rack structures and lower the manufacturing difficulty and cost. Moreover, electric power consumption in the prior art can be saved to increase the standby time of camera.

Abstract: A dustproof structure adapted to an image-capturing device, includes a dustproof cover body, two movable dustproof vanes, a rotating element, and a bottom seat. The dustproof cover body has a first through hole. Two corresponding movable dustproof vanes movably pivot in the dustproof cover body. The rotating element movably disposes on the two movable dustproof vanes, and the rotating element has a second through hole corresponding to the first through hole and a plurality of support ribs formed on two side faces thereof. The bottom seat is fixed on a bottom side of the dustproof cover body for preventing the rotating element from being moved longitudinally, and the bottom seat has a third through hole corresponding to the first and second through holes. The rotating element is moved transversely in a predetermined range between the two movable dustproof vanes and the bottom seat via a part of the support ribs.

Abstract: A lens barrier is opened/closed by a barrier drive cylinder disposed on an outer peripheral side of a lens. The barrier drive cylinder is rotated by a rotation of a cam cylinder together with a first cylinder so as to move forward and backward. In the course of a movement of the lens from a retracted position to a shooting position, the barrier drive cylinder rotates such that a drive ring biased to an opening direction by a spring is driven into an opening direction. The barrier is, thus, opened. When the lens is moved from the shooting position to the retracted position, the operation reverse to the aforementioned is performed to close the barrier. An annular seal member is provided into the space between the barrier drive cylinder and the first cylinder so as to prevent water from entering into the barrel.

Abstract: According to one embodiment, a closing mechanism is configured so that an engaging end portion of a handle is engaged with an engagement piece of a shutter in an open position while a handle for carrying a projector is being drawn out to a carrying position, and the shutter is moved toward a closed position. The positions of the engaging end portion and/or the engagement piece along a sliding direction are set so that an urging force of an ?-spring in a closing direction acts immediately before the handle is fully drawn out.

Abstract: An imaging apparatus include a lens, a first blade slidable between a covering position where the first blade covers the front side of the lens and a retract position where the first blade retracts from the front side of the lens, and a second blade pivotally supported by the first blade, the second blade moving along with the first blade between the covering position and the retract position in response to the slide motion of the first blade, the second blade rotating relative to the first blade in such a way that the second blade more largely overlaps with the first blade in the retract position than in the covering position.

Abstract: A protective cover assembly (40) for digital camera is used for an electronic device (100). The electronic device includes a main body (20) which has a recess portion (210) defined therein. A flash (70) is located in the recess portion. The protective cover assembly includes a cover (49) received in the recess portion. The cover includes a base (46) and a lighttight layer (48) formed on the base. A through hole (462) is defined in the cover, configured for allowing light emitted from the flash to pass the cover.

Abstract: A sliding lens cap includes a slide plate formed with a slide track unit, and a fixing member adapted to be mounted on a projector adjacent to a lens unit of the projector and in sliding engagement with the slide plate at the slide track unit to permit slidable retention of the slide plate on the projector and to permit movement of the slide plate between covering and uncovering positions relative to the lens unit.

Abstract: A camera lens cap includes radially movable latch members carried on an endwall of the cap and apparatus having exposed user engageable surfaces. The latch members are movable between the first latching position and a second unlatched position relative to an adapter which has a camera lens attachment feature. An interior groove formed in the adapter and engageable by the latch members when the latch members are disposed in the first latching position to affix the lens cap on the adapter and the camera lens.

Abstract: A microscope objective lens in which a tip and a circumferential portion of a barrel having a plurality of lenses are processed to seal off an inner space containing the plurality of lenses from the outside. The objective lens includes a sealing member that seals a gap between a cap and the barrel when the cap is placed over a rear end portion of the barrel so as to cover an opening formed at the rear end portion.

Abstract: An optical element covering member, and a backlight and a liquid crystal display device which use the optical element covering member are disclosed. The optical element covering member includes an optical element stacked member including one or more optical elements and a support medium for supporting the one or more optical elements, and a covering member for covering the optical element stacked member. The optical element stacked member covered with the covering member has at least one hole portion formed in an outer edge portion thereof.

Abstract: A lens cover device for a camera lens, particularly suited for use with a telephoto lens and hood assembly, comprises a disk-like body member having a plurality of retention members. The retention members provide friction within the filter-thread region of the camera lens. A large handle attached to one face of the cover device enables a photographer to easily cover or uncover the lens whether the lens and hood are in the shooting position or the stored position.

Abstract: According to one embodiment, a lens barrier mechanism includes four barrier blades for opening/closing an opening for a lens. The driving force of a gear arm is transmitted, via a torsion spring, to a ring cam for opening/closing the barrier blades. The torsion spring includes a coil wound on the rotary shaft of the gear arm, and two arms extending from the opposite ends of the coil and engaged with the boss of the ring cam.

Abstract: A cover for an optical instrument or device includes a preferably flexible hood for partially covering and alternately uncovering the optical instrument and a connector attached to the hood for securing the hood to the optical instrument while the instrument or device is uncovered.

Abstract: A barrel includes a through-hole through which an interlocking lever passes, the interlocking lever provided on a barrier drive member to receive a rotational force. The barrier drive member includes a flange portion in a circumferential direction. The flange portion is positioned at the same phase as the interlocking lever and covers the through-hole from an optical axis direction during a rotation of the barrier blades from an open state to a closed state.

Abstract: A lens barrel includes a first holding member configured to hold a lens, a second holding member configured to hold the first holding member, a protection member located at an object side of the lens in an openable and closable manner and configured to protect the lens when in a closed state, and a drive member configured to open and close the protection member. The first holding member includes an adjustment surface configured to support the first holding member rotatable with respect to the second holding member around a point located on an optical axis of the lens. The drive member is located such that the drive member overlaps the first holding member as viewed from an optical axis direction of the lens.

Abstract: A new and useful structure that provides a simple and efficient lens cover for an optical sight, particularly a hooded optical sight. A lens cover structure comprises a lens cover frame, or a pair of lens cover frames, with lens covers designed to cover and uncover the lens openings in an optical sight, particularly a hooded optical sight. Each lens cover is biased toward a covering position in which it covers a respective lens opening in the hood, and is moveable against its bias to an uncovered position in which it uncovers a respective lens opening in the hood. According to a preferred embodiment, the lens covers are configured to be in predetermined orientations relative to the hood, when the lens covers are in their uncovered positions. In addition, a preferred embodiment is designed to enable the lens covers to be conveniently manipulated by the “off hand” (a shooters term describing the hand that is not responsible for fire control).

Abstract: A permanently-affixed lens cap is presented here. This is a lens cap which one does not have to separate from the camera, to use the camera. Unlike the existing lens caps which clip on the front, and are then removed, these caps remain on the front of the lens practically at all the times. Thus, they do not get lost, and the camera/lens is much safer because of it. Some of the features are: Crystal Clear: a Lens cover which looks like a filter, in that it screws into the filter thread at the end of the lens. This protects the expensive lens from impact and scratches. As an option, the user never has to remove it. Nano-Technology coating: Two separate layers of fine silica particles prevent scratches, and fluorine-containing resins in each layer repel ink marks. This has been used for DVD protection in the industry. Bullet-Proof: Layers of glass and (clear) plastic sandwiched to give great optical clarity, but an incredibly impact resistant front. Non-clear lens, which is permanently attached.

Abstract: An optical part includes a panel cover to be attached around a display area of a display element, a holder holding an optical element, a spring pressing the holder against the panel cover in order to place and rotatably attach the holder to the panel cover one over another, and a dust barrier cover provided on the holder, wherein the part of the holder in contact with the spring has an extension, which is integral with the dust barrier cover.

Abstract: The present invention makes an objective lens easier to handle during disinfection or sterilization and protects the objective lens during, for example, transport, storage, or handling. The present invention provides an objective-lens protector including a substantially ring-shaped mounting portion surrounding a circumference of an objective lens, the mounting portion detachably mounted on the objective lens such that a threaded mount formed on the objective lens for mounting the objective lens to a microscope main body is exposed; a protecting member fixed to the mounting portion, extending substantially along the entire length of the objective lens mounted on the mounting portion, and arranged at a distance outwardly in a radial direction of the objective lens so as to surround the objective lens; and a locking mechanism provided on the mounting portion to prevent the objective lens from moving relative to the mounting portion in a circumferential direction.

Abstract: A lens barrier is opened/closed by a barrier drive cylinder disposed on an outer peripheral side of a lens. The barrier drive cylinder is rotated by a rotation of a cam cylinder together with a first cylinder so as to move forward and backward. In the course of a movement of the lens from a retracted position to a shooting position, the barrier drive cylinder rotates such that a drive ring biased to an opening direction by a spring is driven into an opening direction. The barrier is, thus, opened. When the lens is moved from the shooting position to the retracted position, the operation reverse to the aforementioned is performed to close the barrier. An annular seal member is provided into the space between the barrier drive cylinder and the first cylinder so as to prevent water from entering into the barrel.

Abstract: A lens cover apparatus comprises a mounting structure, a lens cover, a pivot joint structure, and a spring. The mounting structure is configured for securing the lens cover apparatus to a support structure. The pivot joint structure is coupled between the mounting structure and the lens cover and configured for allowing multi-axis articulation of the lens cover with respect to the mounting structure. The spring is coupled between the pivot joint structure and the lens cover. The spring and the pivot joint structure are jointly configured for causing spring-biased multi-axis articulation of the lens cover between a use position thereof and a stowed position thereof in response to manual initiation of the articulation.

Abstract: A drape (101) for a surgical microscope (100) is attached to the surgical microscope (100) with a holding device (103) in the region of the surgical microscope main objective (104). The holding device (103) can accommodate a cover element (105). A tongue-shaped section is provided on the holding device (103) which applies a spring force to an outer peripheral surface of the surgical microscope main objective (104) when the holding device is arranged on the surgical microscope main objective (104) so that the holding device is held force-tight and friction-tight on the surgical microscope main objective. The cover element (105) can be inserted laterally into the holding device (103).

Abstract: A lens cap set for covering an opening defined by a peripheral edge of a lens assembly includes a mounting seat adapted to be disposed on the peripheral edge of the lens assembly, and a lens cap. At least a portion of one of the mounting seat and the lens cap is made from a magnetically attractable material, and at least a portion of the other one of the mounting seat and the lens cap is made from a magnetic material. The lens cap is coupled magnetically and removably to the mounting seat for covering the opening defined by the peripheral edge of the lens assembly.

Abstract: An improved lens mount and related lens and lens barrel positioning methods are provided. In one example, a lens mount for use with a miniature camera can include a ring member having a substantially cylindrical interior surface defining a substantially cylindrical interior space. A plurality of elongate ribs are disposed on the interior surface of the ring member and are adapted to exert pressure against an external surface of a lens barrel received by the ring member. In another example, a method of positioning a lens barrel includes inserting a lens barrel into a ring member having a substantially cylindrical interior surface. Pressure can be exerted against an external surface of the lens barrel from a plurality of elongate ribs disposed on the interior surface of the ring member. The pressure can prevent rotation of the lens barrel along at least three axes of rotational freedom.

Abstract: A lens barrier is held in an open position by a first coil spring while the camera remains electrically powered. When a power switch is turned off, a taking lens retracts within a camera body, and a barrier drive gear is rotated by a motor to extend a second coil spring so as to force the lens barrier to move to a closed position from the open position at the moment that tensile force of the second coil spring rises beyond that of the first extension spring. When the lens barrier is completely moved to and stops in the closed position, the camera is disconnected from power.

Abstract: An electric dust-proof device includes a base seat, a driving mechanism, and a dust-proof cover. The driving mechanism is disposed on the base seat, and includes a power unit, and a drive unit. The drive unit includes a sliding seat driven by the power unit, a pair of first and second pushing portions disposed on the sliding seat and spaced apart from each other, and a guiding assembly for guiding reciprocal movement of the sliding seat along a direction. The dust-proof cover is disposed pivotally on the base seat, and has an engaging portion disposed between the first and second pushing portions, and a cover plate portion connected to the engaging portion. The first and second pushing portions cooperate to move the dust-proof cover between an open position and a close position as a result of the reciprocal movement of the sliding seat.

Abstract: A camera lens attachment (5) having an attaching member (90), additional lens (49), a lens cover (10) doubling as a sunshade, and additional shading components (12) all in an integral combination which is easily attachable or removable from a camera.

Abstract: An image pickup apparatus is provided. The image pickup apparatus permitting a conversion lens to be mounted and dismounted, wherein a lens hood is composed of a base portion on the mounting side and a tubular portion on the front side, the base portion and the tubular portion are detachably coupled to each other, and another lens is contained in the inside of the lens hood when the another lens is mounted on the front side of an optical system, whereby even when the conversion lens is being used, the lens hood can be used as it is, and the incident light contracting function of the lens hood can be maintained.

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: A low profile medical lens protector (100) for a medical viewing device having a given diameter, comprising: a rotatable view-through element; a motor which rotates said view-through element; and a housing (140) enclosing said view-through element and said motor, characterized in that said housing has an outer diameter less than 10 mm greater than said given diameter.

Abstract: A cup for an eyepiece of an optical observation instrument, comprises a peripheral wall which includes an eyepiece-connecting section for connection of the cup to an eyepiece, a transition section which adjoins the eyepiece-connecting section, a light-protecting attachment which, by way of a sectional part of the transition section, is joined to a side of the transition section that is turned away from the eyepiece-connecting section; a sight hole which is laterally defined by the peripheral wall; the peripheral wall being movable into a first, non-folded end position for someone who does not wear spectacles for preclusion of any incidence of stray light upon an eyepiece lens, and into a second, folded end position for spectacle wearers; and into a third stable position of ventilation, located between the first and the second end position, for someone not wearing spectacles.

Abstract: A barrier device for covering and uncovering a front face of an optical system. The barrier device includes a rotating barrel supporting the optical system at an opening and rotatable about an axis, a barrier member that is movable by the rotation of the rotating barrel between a closed position covering the front face of an optical system and an open position uncovering the front face of the optical system, and an elastic member supported by the barrier member and coupled to the rotating barrel so as to transmit a rotational force of the rotating barrel to the barrier member. Accordingly, the number of dedicated parts for opening and closing the barrier member can be reduced, thereby attaining a reduction in cost and a reduction in configuration space. Further, the barrier device can be reduced in size.

Abstract: A lens hood with lens covers that need not be attached to and detached from a lens unit and are easily openable and closable relative to each other. The lens hood includes a hood body attached to the front of a lens to prevent unnecessary light from being incident upon the lens, a pair of lens covers installed inside the hood body to be pivotable about an axis perpendicular to the optical axis of the lens and movable between a closed position where they will cover the lens and an opened position where they will be outside the field of view of the lens, and a cover operating mechanism that operates in conjunction with the sliding of an operator installed slidably to the hood body to pivot the lens covers in opposite directions, respectively, and to pivot the pair of lens covers between the opened and closed positions.

Abstract: A binocular cover comprising a cover sheet that overlies an exposed face of a binocular carried at the chest of a user by a neck strap, a substantially rigid top cover fixed to and projecting from one end of the cover sheet to overlie the eyepieces of the binocular, and an elastic strip interconnecting wings at opposite sides of the top cover and pull tabs affixed to the top cover to be used to peel the top cover from over the eyepieces and downwardly towards a distal end of the binocular positioned between the elastic strap, a back surface of the cover sheet and the wings.

Abstract: An arrangement is specified for rotatable adjustment of a cap (2) on an eyepiece housing (1), with the cap (2) having grooves (3) on its inner face, which rise in the axial direction and have defined latching depressions (4) in the sliding bases (11) of the grooves (3), and pins (5) which point radially outwards being arranged on the eyepiece housing (1) and engaging with sliding bases (11) of the grooves (3) and resting on the sliding bases (11) of the grooves (3) and in the latching depressions (4) in a prestressed manner. The arrangement comprises the pins (5) being mounted in a sprung manner in the eyepiece housing (1).

Abstract: Vision enhancing apparatus includes a lens and tethered lens cap which protects the lens when the apparatus is not in use. The apparatus also includes a protrusion having a shape complementary to the lens cap for retaining the latter when the apparatus is in use.

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 present invention relates to a surgical microscope drape assembly for use with surgical microscopes in an operating room or similar sterile environment. In one embodiment of the invention, the drape assembly comprises an elongated hollow enclosure of sheet-form material having a first end defining an access opening and a second end defining a hole and at least 4 ocular pockets. The access opening of the enclosure allows access to the interior of the enclosure to enable the drape assembly to be pulled over the body of a surgical microscope while the at least four ocular pockets each cover a corresponding ocular port of the microscope to enable the drape assembly to be used on a variety of microscope heads.