Abstract: A cam pin (16) and a demating prevention pin (35) that are provided in a driving frame (15) and have an identical shape are allowed to mate with a cam groove (18) and a demating prevention groove (36) that are provided in a cam frame (17), respectively. A first protrusion (37) is provided on at least one side in an optical axis direction of a portion of the demating prevention groove (36) with which the demating prevention pin (35) mates when the driving frame (15) is advanced. When an external force is applied to the driving frame (15), a cylindrical portion (35f) of the demating prevention pin (35) and the first protrusion (37) come into contact with each other. This prevents the cam pin (16) from demating from the cam groove (18). The cam pin (16) and the demating prevention pin (35) are made of common components, making it possible to reduce the number of components.

Abstract: A lens barrel capable of accurately detecting a position of a retractable lens retaining frame. A frame female member for rotating a frame around a lead screw and driving the frame in forward and backward directions along the lead screw is formed with a T-shared protruded member as a detected portion located at a position opposite a rotation-preventing projection. The T-shared member structures a position of the frame together with a transmissive photo-interrupter, to decide a reference position in a retracted state of the frame and for an optical axis entrance completed position of the frame at a time when a transition has changed from a retracted state to a photographable state, and detects a distance from the reference position of the frame or a position of the frame in the photographable state in which a focal distance during wide-angle photographing and telephoto photographing is changed.

Abstract: A retractable lens camera includes: a lens barrel; three or more lens groups provided in the lens barrel; a retracting unit that retracts the lens barrel and the lens groups into a camera body; and a displacing unit that displaces at least two lens groups to an escaping space out of an optical axis.

Abstract: A lens device includes a seat unit having an image sensing component, a first barrel unit, a first lens module coupled to the first barrel unit, and a second lens module mounted on the seat unit. When the first barrel unit moves toward the seat unit along an optical axis, the first lens module moves in radial directions via a first guide mechanism such that a first lens unit is misaligned with the image sensing component relative to the optical axis, while the second lens module is driven to rotate via a second guide mechanism such that a second lens unit is misaligned with the image sensing component. The lens device further includes a first biasing unit for biasing the first lens module to a first shooting position, and a second biasing unit for biasing the second lens module to a second shooting position.

Abstract: A trading card includes a front wall, a back wall, a bottom wall, and a top wall. The front wall retains a viewing lens. The back wall retains an image. The bottom wall extends between the front wall and the back wall. The top wall extends between the front wall and the back wall. Three of the walls are moveable relative to the other wall to move the trading card from a folded configuration to an unfolded configuration. In the folded configuration, the walls are substantially parallel to each other. Further, in the unfolded configuration, the front wall and the back wall are substantially parallel and spaced apart, and the bottom wall and the top wall are substantially parallel and spaced apart. Additionally, the image is viewable through the viewing lens when the trading card is in the unfolded configuration. Moreover, the image can be on a piece of film and the viewing lens can be a magnifying lens.

Abstract: A collapsible type optical unit is described that is capable of moving its optical system between a working position and a retracted position as well as an image-pickup apparatus including the optical unit. The optical unit and the image-pickup apparatus are capable of acquiring lens-position information by detecting a position of a lens barrel supported to be movable with respect to a fixed barrel. The collapsible type optical unit includes a second group lens frame movable along a direction of its optical axis with respect to a fixed ring and rear barrel, and a solid-state image-pickup device provided behind the second group lens frame, in which on the movable second group lens frame, a position-detecting means for detecting a position of the second group lens frame is provided.

Abstract: An optical lens module includes a lens barrel and a barrel base. The lens barrel includes an external wall. The barrel base has a receiving housing for receiving the lens barrel therein. The receiving housing includes an internal wall. The lens barrel defines at least a first positioning block or at least a second positioning slot at the external wall along a longitudinal axis of the lens barrel. The receiving housing defines at least a first positioning slot corresponding to the first positioning block or at least a second positioning block corresponding to the first positioning slot at the internal wall of the receiving housing.

Abstract: A device is shown having at least two movable lens units, wherein each of the at least two movable lens units has at least one lens, wherein the at least two movable lens units are movable into a first state wherein the at least two movable lens units are arranged in parallel to each other, and wherein the at least two movable lens units are movable into a second state wherein the at least two movable lens units are arranged on top of each other for positioning the lenses of the at least two movable lens units in an optical axis.

Abstract: There is provided a lens barrel on which a flexible substrate having mounted thereon an image pickup element for photoelectrically converting an optical image imaged by a photo-taking lens is mounted, having a plurality of lens barrel members disposed movable forward and backward in the direction of an optical axis, and moving the photo-taking lens between a stored position which is the image pickup element side in the direction of the optical axis and a photographing position which is an object side in the direction of the optical axis, and an image pickup element supporting unit for supporting the image pickup element, and having a notched portion so that at least one of the plurality of lens barrel members may face the flexible substrate.

Abstract: A magnifying assembly includes a plate with a first side, a second side, a first end and a second end. The plate is mountable to a planar surface. A panel has a first edge, a second edge, a third edge, and a fourth edge wherein the first and second edges are positioned opposite of each other. The panel has a centrally disposed window extending therethrough. A pair of wells extends into the third edge. A magnifying lens is mounted to a peripheral edge of the window. Each of a pair of arms has an inner end positioned within one of the wells. The outer ends of the arms are each hingedly coupled to the first end of the plate. The panel is selectively abuttable against the plate when the arms are fully extended into the wells. The magnifying lens may be selectively pivoted and extended outwardly away from the plate.

Abstract: A lens barrel has its collapsed length which can be further decreased and its extended length which can be further increased. A photographic apparatus incorporates the lens barrel into its body. A lens barrel is equipped with a first gear which is rotatably supported by a straight-ahead key ring and rotates being driven by rotation of a middle tube and a second gear which receives driving force from the first gear and retracts a second lens group to a predetermined retracted position off the optical axis of a zoom lens during collapse and advances the second lens group onto the optical axis during extension. The second gear lacks teeth in that part which faces the first gear when the second lens group is at the retracted position during collapse. Consequently, the first gear runs idle while facing that part thereby holding the second lens group at the retracted position.

Abstract: The described embodiments provide devices and methods for securing a lens member in a mobile electronic device. The lens member is positionable between a front housing and a rear housing of the device such that inner surfaces of the housings both exert a biasing force on the lens member such that the lens member is substantially immovable relative to the inner surfaces. As such, the lens member is securely fixed within the housings and cannot be removed or separated from one or both housings without evidence of tampering.

Abstract: A thin magnifier structure with magnetic protective jacket, including a transparent magnifying member, a magnetic jacket and a pivot member. The transparent magnifying member integrally has a magnifier and is movably clipped and hidden in the magnetic jacket. The transparent magnifying member and the magnetic jacket are pivotally connected with each other via the pivot member, whereby the transparent magnifying member can be pivoted about the pivot member out of or into the magnetic jacket. When not used, the transparent magnifying member is clipped and hidden in the magnetic jacket, whereby the magnifier is protected from being scraped by any alien article. In use, the transparent magnifying member is pivoted about the pivot member out of the magnetic jacket. At this time, a user can hold the magnetic jacket with a hand to see an object through the magnifier without contaminating the magnifier. The thin magnifier structure is also usable as a bookmark.

Abstract: A magnifier device for magnifying a portable video image produced by a video display device. The magnifier includes a base member connected a magnifier portion connected to and rotatable relative to the base member. The magnifier portion is rotatable to facilitate rotation between a first position adjacent a display window of the video device to magnify a display and a stored position compactly arranged adjacent the video display device. The magnifier device can be securely affixed to the video display device and folded to a compact stored position while attached.

Abstract: A retractable magnifier includes a housing and a lens assembly having a lens carried in a frame. The lens assembly is movable in the housing between a retracted position and an extended position. The housing is provided with push-buttons capable of releasing the lens assembly from the retracted position. A longitudinal rack is formed in the housing. A pinion meshes the rack and has a spindle rotatably connected to the frame. The pinion further includes a helical torsion spring mounted around the spindle and placed in damping oil for urging the pinion in such a direction that the frame may be moved, in a gentle manner, to the extended position. A rocker provided with an electric prefocus lamp is pivotally connected to the housing, and adapted to be pivoted outward at a predetermined angle with the housing when the lens assembly is in the extended position. A switch is formed on the housing for turning on/off the lamp.

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: Binoculars doubling as a toy, in particular, various spherical shapes such as a soccer ball or baseball. These binoculars have lens barrels ejected from hemispherical bodies to increase the field of vision up over a long distance. The binoculars doubling as a toy may be constructed with hemispherical bodies 1 and 21 defining a complete global shape when coupled with each other, connected to each other by a hinge 15; eye lens barrels 6 and 26 each having eye lenses 5 and 25 and mounted to centers of arc sections 2 and 22 of the bodies 1 and 21; circular plates 7 and 27 mounted into grooves 3 and 23 formed in the arc sections 2 and 22; objective lens barrels 10 and 30 each having objective lenses 9 and 29 and inserted into through holes of the circular plates 7 and 27; and springs 13 and 33 each mounted between the eye lens barrels 6 and 26 and the objective lens barrels 10 and 30.

Abstract: A microscope formed from a single, flat, relatively thin, injection molded plastic blank employs living hinge technology. The blank has eight living hinges that cooperate with slots, hooks, and detents, such that when folded in a prescribed sequence, produces a unitized microscope body.

Abstract: A display source unit for a display device in a vehicle is provided, by which the driver is not given a physical or mental oppressive feeling to his or her head upon getting on and off the vehicle. The display source unit 9, which irradiates a light of a display image containing instrument information on a combiner 7 situated in front of an eye point I so that the irradiated light can be seen as a virtual image S from the eye point I, is provided with a cover member 13 consisting of: a front cover body 15 putting an optical element 21 for image magnification thereonto; and a rear cover body 17 hinged to the front cover body 15 with receiving a display device 23 therein. The cover member 13 is folded, thereby the light of the display image displayed on a display surface 23a of the display device 23 is reflected on a reflector 25 disposed in the cover member 13 to the optical element 21, passes through the optical element 21, and goes toward the eye point I after being reflected by the combiner 7.

Abstract: A viewing instrument that has a collapsed configuration and an expanded configuration. The viewing instrument includes two lenses that are located within a housing when the viewing instrument is in its collapsed configuration and at least a portion of each of the lenses is located outside of the housing when the viewing instrument is in its expanded configuration.

Abstract: A binocular of this invention includes a pair of objective optical systems, a pair of eyepiece units for integrally holding erecting optical systems and eyepiece optical systems, and a holding member having a first holding portion for holding one of the pair of eyepiece units and a second holding portion for holding the other one of the pair of eyepiece units. The holding member is deformed such that the pair of eyepiece units has a predetermined positional relationship.

Abstract: An optical pickup device-holding container, which is formed from a resin composition comprising a poly(arylene sulfide) (A) and an inorganic filler (B) and having a thermal conductivity of at least 1 W/mK; and an optical pickup device in which at least a light source, an objective lens and a light-receiving part are held in the holding container.

Abstract: In the developed state of the combiner 13, the first arm 19 extends along a vertical line passing the center of gravity G of the combiner 13, and the second arm 21 and the third arm 23 are aligned on and extended along a line which couples the rear end of the base member 17 and the other end 19b of the first arm 19 and tilts from the vertical direction toward the horizontal direction so that the combiner 13 is arranged in front of the eye point I at a tilting angle of reflecting the image light of the displayed image emitted from the display device of the projector unit 9 toward the eye point I of the driver 3. In such a configuration, the virtual image of the displayed image on the combiner which is to be visually recognized from the eye point can be visually recognized stable with no shaking in a vehicle which is susceptible to the vibration from the road face.

Abstract: An apparatus and method for magnifying visual media such as a map is disclosed. The apparatus has three main elements: a lens having a focal length, a visual media positioning assembly and a collapsible positioning assembly for positioning the lens with respect to the visual media positioning assembly. The lens is preferably a convex lens and provides magnification of a piece of visual media. The visual media assembly positions and protects a piece of visual media. The collapsible positioning assembly positions the lens a distance above the visual media so that the visual media is located closer to the lens than the lens' focal length. As a result, a magnified virtual image of the visual media is created.

Abstract: A magnifying system is provided to aid in the viewing or reading of book, papers or similar documents by those with impaired vision. A magnifying lens with approximate overall dimensions of eight by eleven inches is supported in an attractive wood or plastic frame of various designs and is supported by a series of four legs in each corner. The legs are adjustable in length by the use of a spring-based telescopic adjustment system that allows the user to adjust for different parameters such as strength of magnification, object size, level of vision impairment and the like. The legs also fold over against the frame in a manner similar to a card table to allow the invention to be carried in a case, a briefcase or just allow for easier transportation with reduced risk of damage.

Abstract: A lens module is fixed on a board body which is provided thereon with an imaging chip. The lens module comprises a seat body in which at least one lens is fixed for passage of rays of light from the outside of the seat body so as to form an image on the chip. An expandable tube is sandwiched between the seat body and the board body and is provided with a serpentine segment. A closed passage is formed between the lens and the chip. The expandable tube is provided thereon with a fixation member for limiting deformation of the serpentine segment of the expandable tube.

Abstract: In the developed state of the combiner 13, the first arm 19 extends along a vertical line passing the center of gravity G of the combiner 13, and the second arm 21 and the third arm 23 are aligned on and extended along a line which couples the rear end of the base member 17 and the other end 19b of the first arm 19 and tilts from the vertical direction toward the horizontal direction so that the combiner 13 is arranged in front of the eye point I at a tilting angle of reflecting the image light of the displayed image emitted from the display device of the projector unit 9 toward the eye point I of the driver 3. In such a configuration, the virtual image of the displayed image on the combiner which is to be visually recognized from the eye point can be visually recognized stable with no shaking in a vehicle which is susceptible to the vibration from the road face.

Abstract: In the case of an adjusting apparatus for an optical element in a lens system, in particular a lens in a projection lens system for semiconductor lithography, for producing tilting movements, having at least one actuator, the optical element is connected via elastic connecting members, directly or indirectly via an inner mount, to an outer mount. The elastic connecting members or the at least one actuator are/is provided in each case with bearing bridges which have bearing locations for a connection to the optical element or to the inner mount, and bridge arms which are connected to the bearing locations. The bridge arms are provided with piezoceramic elements in plate or sheet form which undergo changes in length upon activation. The piezoceramic elements of the various bearing bridges can be activated individually or together.

Abstract: The present invention is a two position optical element actuator device utilizing a powered means to hold an actuation arm, to which an optical element is attached, in a first position. A non-powered means drives the actuation arm to a second position, when the powered means ceases to receive power. The optical element may be a electromagnetic (EM) radiation or particle source, an instrument, or EM radiation or particle transmissive, reflective or absorptive elements. A bearing is used to transfer motion and smoothly transition the actuation arm from the first to second position.

Abstract: The present invention is a bistable optical element actuator device utilizing a powered means to move an actuation arm, to which an optical element is attached, between two stable positions. A non-powered means holds the actuation arm in either of the two stable positions. The optical element may be a electromagnetic (EM) radiation or particle source, an instrument, or EM radiation or particle transmissive reflective or absorptive elements. A bearing is used to transfer motion and smoothly transition the actuation arm between the two stable positions.

Abstract: A lens barrel includes an optical element having a light-transmissive surface which is deformed by own weight thereof and/or by being supported, and a plurality of protrusive parts which support the optical element. The plurality of protrusive parts are disposed in such a way as to enable the light-transmissive surface of the optical element to be deformed symmetrically with respect to a plane which includes an optical axis.

Abstract: The present invention is usable as a stereoscopic visual unit capable of obtaining fine stereoscopic effects and also usable as binoculars, by provided with a first housing 11 that has a pair of convex lenses 12 and 13 and disposed at a specified space and having mutually almost parallel optical axes; and a second housing 20 that has a supporting part 25 supported swingable to the first housing for keeping a pair of pictures to be stereoscopically viewed on the optical axis of each convex lens in its first swing position, and a pair of concave lenses 26 and 27 disposed on the optical axis of each convex lens, a specified distance apart from each convex lens in its second swing position.

Abstract: The present invention is a bi-stable optical actuator device that is depowered in both stable positions. A bearing is used to transfer motion and smoothly transition from one state to another. The optical actuator device may be maintained in a stable position either by gravity or a restraining device.

Abstract: In a non-use state in which a cover (2) is closed (FIG. 6A), a lens (11R) is accommodated in a housing (1) such that the lens is in a so-called laid state. In a use state in which the cover (2) is open (FIG. 6B), the lens (11R) is exposed from the housing (1) and is set in a so-called rise state. In this state, when a user looks through the lens (11R), the user can see an virtual image formed by magnifying an image displayed on a display panel (12R) with the lens (11R).

Abstract: The invention makes the size of the apparent image of the display screen of the display screen larger than the real size. A flat optical magnifier such as a lens of the fresnel type is positioned in an optically enhancing location between the operator and the display screen so that the apparent image at the operator side of the magnifier is greater than the actual image that is present on the display screen. A mechanism is provided for a notebook type portable computer that is passive to a user, folds into the case when the display screen closes over the keyboard and positions a fresnel lens, coplanar with and at a fixed distance from the display screen, when the notebook computer is opened and remains at that fixed distance as the display screen moves to maximum travel.

Abstract: A wind blocking device having a heat reflective interior for protecting a user from exposure to wind while concurrently providing heat reflection from a campfire or other associated energy source. The device includes a foldable array of panel members laterally coupled and hinged to adjacent panel members at lateral points of attachment. The array of panels may accordingly be unfolded into a vertical panel array having an interior containment surface of generally concave configuration. An opposing, generally convex exterior wind blocking surface of the array of panels shields the user from wind chill and loss of heat by radiation. A plurality of ground support panels are coupled to a base edge of the panel array with hinge means for enabling the ground support panels to be extended at right angles to provide a stable support platform to maintain the array of panels in an assembled, vertical orientation.

Abstract: An adjustable magnifying apparatus comprising a generally rectangular-shaped, sheetlike magnifying surface, an adjustable arm having at least one generally hourglass-shaped member with a first end zone having a socket and an opposite, generally parabolic-shaped second end zone, a first coupler having a first end with a slit sized and shaped to removably secure an outer edge of the magnifying surface therein and an opposite, parabolic-shaped second end sized and shaped to be removably captured within the socket of one of the hourglass-shaped members, and a generally C-shaped clamp having a second coupler, structured and disposed to removably capture the parabolic-shaped second end zone of one of the hourglass-shaped members therein, mounted on the upper face.

Abstract: A mechanical fastening system is disclosed in which standard micro-optical elements are initially mounted on respective one-piece frames which in turn may be secured in position on a mounting plate. Each frame has a platform to which at least three legs are flexurally joined along respective hinge axes. In one embodiment, the legs include corresponding spherical segments for point-contact with the mounting plate. In another embodiment, the legs include corresponding foot portions connected by a ball-joint for three-degrees of rotational freedom. The one-piece frames may be efficiently manufactured by laser beam cutting or punching a steel sheet. The proposed fastening system enables uni- or multi-dimensional layouts to be created using automatic placing and fastening technologies.

Abstract: A spherical binocular capable of being conveniently portable and suitable for use for watching a game in a baseball stadium, a soccer ground or the like. Two hemispherical shells are foldably or pivotally connected together into a spherical configuration. The hemispherical shells each are formed at a center thereof with an ocular through-hole, in which an ocular concave lens is fitted. A front plate is fitted in a front opening edge of each of the shells and formed at a center thereof with an objective opening, in which an objective convex lens is arranged so as to be aligned with the objective convex lens. When the hemispherical shells are folded over each other to align the front opening edges with each other, a holding pawl and holding groove of one of the hemispherical shells are fittedly engaged with a holding groove and a holding pawl of the other of the hemispherical shells, respectively.

Abstract: An apparatus is described for aligning an actuator lens of an optical disk drive or the like within a baseplate assembly. The apparatus comprises a frame, a cradle assembly mounted to the frame with at least one degree of freedom of motion, a tower assembly mounted to the frame, a lever assembly rotatably mounted to the frame, and a gripper assembly mounted to the lever assembly. The cradle assembly includes a baseplate alignment assembly comprising a source of radiant energy for projecting a beam of radiant energy, means for determining the tilt alignment of the beam with respect to the tower assembly, and a plurality of tilt actuators for aligning the tilt of the beam with respect to the tower assembly. The baseplate alignment may further comprise means for determining the lateral alignment of the beam with respect to the tower assembly and a plurality of lateral actuators for aligning the beam laterally with respect to the tower assembly.

Abstract: An illuminated magnifying lens assembly includes a magnifying lens, a storage case having upper and lower portions, a support frame disposed about and supporting the lens, and a retainer element and fastener secured to the case and pivotally connecting the frame to the case such that the frame and lens therewith may be pivoted relative to the case in a circular arc from a stored position between the upper and lower portions of the case to a plurality of deployed viewing positions wherein the frame is angularly displaced from the case and the lens is exposed. The lens assembly also includes an electrical light source disposed within the frame for emitting and projecting light through a small hole in the frame and onto an object being magnified by the lens as observed through the lens. The light source is activated by pivoting the frame in a predetermined direction from the stored position to one of the deployed positions. The light source include a lamp, batteries, and a switch mechanism.

Abstract: Dual image manifestation apparatus including real image generation component mounted on a mounting structure for providing at least one real image, and an optical magnifier system, including a low magnification optical system supported by the mounting structure and the housing to receive the image at an optical input and provide a magnified image directly viewable at an optical output, and a high magnification optical system integrally formed with the low magnification optical system and supported by the mounting structure and the housing to receive the image at an optical input and provide an enlarged virtual image at an optical output. The apparatus being interchangeable from a low magnification, quasi-direct view image mode to a high magnification, virtual image mode by slideably moving the optical magnifier system so as to position the desired magnification lenses over the real image. Electrical connections for the image generation component are provided through the mounting structure.

Abstract: A collapsible binocular comprising a substantially rectangular-faced open-sided housing having a front wall formed with a pair of objective lens apertures and a rear wall formed with a pair of eyepiece lens apertures is provided. A top wall, a bottom wall with an intermediate transverse fold line, the front wall and the rear wall of the housing are integrally connected and a flap is integrally connected to the front wall for attaching the front wall to under side of a visor extending from the top wall. A left side wall member and a right side wall member are integrally attached to the front wall or to the rear wall such that the front wall or the rear wall, respectively, play the role of a centered portion. When the binocular is assembled, any pairs of objective lens apertures will be in alignment with any pairs of eyepiece lens apertures.

Abstract: An apparatus and method for properly aligning, coupling and cropping two stereoscopically complementary pictures which are positioned one above the other. Alignment and holding apparatus includes a base for supporting two stereoscopically complementary pictures, a detachable joining strip with two areas of pressure sensitive adhesive for joining two pictures which is placed in a fixed planar shield with a pair of opposed guide flaps with one non stick surface for holding the joining strip, and a flat, flexible, transparent alignment sheet with grid markings which overlays the pictures and includes cut out areas for manually accessing the pictures for adjusting one picture relative to the other.

Abstract: A magnifier for optically enlarging objects placed therebeneath. The inventive device includes a frame supporting a substantially rectangular magnifying glass. A pair of support assemblies extend from opposed sides of the frame and cooperate to support the magnifying glass above a support surface. The support assemblies can be adjusted in infinitely small increments to position the magnifying glass at a desired height and to effect focusing of the device.

Abstract: A utility device for a fisherman includes a housing having a neck strap, a downwardly and forwardly directed light source and a magnifying glass for downwardly and forwardly directed viewing in a beam of light generated by the light source. The device also includes a clock facing upwardly toward the user, a measuring tape, a hone, a belt clip, a line cutter and a measuring tape. The housing also includes material providing for flotation. Additionally, the light source, clock, measuring tape, hone and line cutter are all of modular design allowing plug-in mounting in the housing for ease of repair/replacement.

Abstract: A turret condenser for microscopes is equipped with two turrets which are capable of interposing combinations of numerous types of optical elements on the optical axis and rotatably arranged in overlapped positions in the vicinity of the pupil of a condenser lens. Most of the optical elements are removably accommodated in each of the turrets. This turret condenser makes it possible to perform microscopy in various modes by simple operations.

Abstract: A portable display equipment includes an image display unit, and an external light preventing member of a polygonal cylinder. The external light preventing member is detachably mounted in front of the display portion of the image display unit. The external light preventing member includes a shielding member and a light-shielding member of a polygonal cylinder. The shielding member covers the periphery of the display portion of the image display unit. The light-shielding member consists of a plurality of light-shielding plates which are coupled to each other so as to be freely bent and constitute one sheet member when developed. The light-shielding member is narrowed toward the viewer side by bending coupling portions of the light-shielding plates. The shielding member is coupled to part of an edge of the light-shielding member on the display side so as to be freely bent.