Abstract: The present multi-purpose eyewear uses a pliable frame and nose bridge in cooperation with strap adjustment and quick release mechanisms to enable multiple uses of the eyewear and adjustment of the eyewear while in place on the head of the wearer. The wraparound frames incorporate a sealant, such as a bonded gel filled rubber, around the lens periphery of the frame to present a comfortable interface between the wearer's skin and the eyewear. The strap adjustment and quick release mechanisms are simple to use and enable the eyewear to be adjusted while in place on the head of the wearer to fit the wearer in a manner to create a water-tight/air-tight seal (fluid-tight seal) around the wearer's eyes in a manner to conform to the contours of the wearer's face and avoid irritation of the skin from prolonged use. The lenses that are used in the eyewear are capable of being manufactured to prescription specifications and can include sunlight protection.

Abstract: Disclosed is an optically corrected lens for nonprescription eyeglasses. In a preferred embodiment, the anterior surface of the lens lies on a portion of a first sphere having a first center. The posterior surface of the lens lies on the surface of a second sphere having a second center. The first and second centers are offset from one another to provide a tapered lens. The lens is oriented on the head of the wearer by a frame that maintains the lens in a position such that a line drawn through the first and second centers is maintained substantially in parallel to the normal sight line of the wearer. Lenses are thus provided which have improved optics when mounted in an as-worn orientation such that they exhibit both vertical “rake” and horizontal “wrap.” Methods of making the lenses, and eyewear incorporating the lenses, are also disclosed.

Abstract: A diving mask fog wiping device and method which allows fog on the inside of the viewing face plate to be wiped by a slave unit which is magnetically coupled to a master unit on the opposite side of said viewing face plate. Further, the slave unit is magnetically coupled to a resting unit which keeps it out of the line of sight and near the surface of the viewing face plate while it is not being used for wiping. A porous and nonabrasive surface on the slave unit may be soaked in an antifog agent, allowing the agent to be applied and re-applied every time fog is wiped.

Abstract: A lens combination is provided for a pair of swimming/diving goggles having a goggle frame. The lens combination includes a planar lens mounted to the goggle frame and a curved lens mounted in front of the planar lens, thereby defining a space between the planar lens and the curved lens for receiving water. The curved lens includes an outer surface and an inner surface. The planar lens includes an outer surface and an inner surface. The space is filled with water. When the lens combination is used in water such that the outer surface of the curved lens, the inner surface of the curved lens, and the outer surface of the planar lens contact with water, thereby allowing formation of clear image when viewing an object in water.

Abstract: A lens system is adaptable to face masks for divers and camera and viewing indows and assures improved viewing characteristics underwater, including unit magnification and substantially perspective distortion-free viewing over a wider field of view. The system includes a first lens having a concave outer face contacting water and a concave inner face contacting a gas filled interior. A second lens spaced apart from the first lens in the interior has a convex outer surface and a flat inner surface. The concave outer face and concave inner face of the first lens and the convex outer surface and flat an inner surface of the second lens are coaxially aligned and optically oriented to afocally process and transmit light passing through them to a nodal point in the interior. At least one of the outer face, concave inner face, convex outer surface and inner surface defines an aspheric curve.

Abstract: A strap for swimming/diving goggles includes two ends connected to the goggle frame and a looped mediate section having an upper loop section and a lower loop section. The loop sections have different stretchability. When applied to the rear of the user's head, the loop sections are stretched by different lengths and thus have the same restoring/retaining force, thereby providing reliable retaining effect and improved wearing comfort.

Abstract: Eye goggles comprising left hand and right hand eyepieces and a nosebridge interconnecting inner portions of the eyepieces. The nosebridge has at least two filaments, each filament having left hand and right hand end portions cooperating with respective eyepieces. A headband cooperates with outer portions of the eyepieces to extend therebetween. Spacing between the eyepieces is adjusted by positioning the goggles in a generally operative position and rotating one eyepiece relative to the other eyepiece through at least one revelation so that portions of the filaments are twisted together, thus tending to reduce spacing between the eyepieces.

Abstract: A diving face mask including a lens, a main frame and a lens holding frame. The main frame and the holding frame are integrally interlocked together by first projections and second recesses arranged between an outer peripheral surface of the main frame and an outer edge of the holding frame covering this outer peripheral surface.

Abstract: Floating eyeglasses having a frame (20) with lenses (22), a bridge (24) and ends (26), preferably of the wrap around type fabricated of thermoplastic, are modified to include elements that permit the eyeglasses to float. Temples (30) are pivotally attached to the frame and include a inwardly curved smooth surface (36). A number of frame float pads (38-44) are attached to the frame adjacent to hinges that connect the temples. A pair of temple float pads (52) and (54) are attached to the curved surface of the temples. The combined frame and temple float pads have sufficient buoyancy to overcome the weight of the frame and temples permitting the eyeglasses to float in water with the temples always in an upright position.

Abstract: An afocal lens system is provided between two different mediums having dirent indices of refraction and dispersion values, and is used in such devices as diver-masks. The lateral chromatic aberration inherent in the usual flat-surface of a transparent protecting mask is greatly reduced. This is done by an arrangement which combines a positive low dispersion lens with a negative high dispersion lens in various arrangements with each other.

Abstract: The invention relates to a face shield comprising a lens. In order for the shield to have versatile properties and a simple structure and to utilize various apparatuses provided with a display, the shield comprises holding means for detachably receiving a wrist watch-shaped apparatus including a display, and optical apparatuses for displaying information provided by the display in a lens area. The shield is then preferably a diver's mask and the apparatus is a dive computer. The holding means preferably comprise a frame portion and instant attachment means.

Abstract: A lens system is adaptable to face masks for divers and camera windows and ssures improved viewing characteristics underwater, including unit magnification and substantially perspective distortion-free viewing over a wider field of view. The system includes a first lens having a concave outer face contacting water and a concave inner face contacting a gas filled interior. A second lens spaced apart from the first lens in the interior has a convex outer surface and a flat inner surface. The concave outer face and concave inner face of the first lens and the convex outer surface and flat an inner surface of the second lens are coaxially aligned and optically oriented to afocally process and transmit light passing through them to a nodal point in the interior. At least one of the outer face, concave inner face, convex outer surface and inner surface defines an aspheric curve.

Abstract: Mirrorized compartments for extending a diver's vertical, lateral and posterior fields of vision. The mirrorized compartments are clamped on opposite sides of the diving mask and have mirrorized surfaces which reflect light rays entering the compartments from objects above, below, the sides or rear of the mask into a diver's view. In a first aspect of the invention, the mirrorized surfaces are fixed to provide supplementary lateral and posterior fields of vision of fixed amounts. In a second aspect of the invention, the mirrorized surfaces are rotatable about horizontal axes to provide supplementary vertical or lateral and posterior fields of vision in varying amounts. In a third aspect of the invention, the mirrorized surfaces are on members which are rotatable with spherical joints to provide supplementary vertical, lateral and posterior fields of vision in varying amounts.

Abstract: A pair of swimming goggles includes two lenses, two pads, a bridge, and a strap. The lenses are made of transparent material and each includes a recessed section for receiving an eye portion of a user. Each lens further includes an inner end, a streamlined outer end, and a flange formed on an inner side thereof. The bridge interconnects the inner ends of the lenses. The pads are substantially ring-like and made of plastic material. Each pad includes a receiving section for receiving an associated flange and a contact section for providing a close, comfortable contact with the user's eye socket. Each pad further includes an outer end with an opening through which one of the ends of the strap is wound. The strap connection is thus improved to provide a larger visual angle, increase safety, and provide a comfortable and reliable contact with the user's head.

Abstract: A programmable pacing device for helping a user to achieve a desired pace or tempo. The device is capable of emitting a plurality of different audible signals, each signal conveying selected pacing information to the user, and may be used by athletes to help in training or race pacing. The device may comprise a single unit or two separate units; an input unit and a signaling unit and as a single unit the device may form part of a pair of swimming goggles.

Abstract: An amphibious sport goggle having a malleable frame and interchangeable lenses. The frame includes a pair of eye cups constructed of a soft, flexible and gas permeable material, preferably 4-way stretch "LYCRA" fabric. A lens is held in place across a first open end of each eye cup by pair of flexible rings sewn into the eye cup and oriented parallel to each other for retaining the lens therebetween. The lenses are interchangeable with lenses having various shapes, colors and optical properties. A third flexible ring is sewn into each eye cup around the perimeter of a second open end for providing additional structure to the eye cup and for providing a seal between the wearer's face and the eye cup. The rings are preferably rubber. An outer layer forms a sleeve around a portion of each eye cup. The sleeve is attached to the eye cup in the vicinity of the perimeter of the lens. The sleeve is constructed of a durable and flexible material, preferably "CORDURA" fabric.

Abstract: A diving mask with supplemental lateral and posterior fields of vision. A pair of compartments which extend outwardly from opposite sides of the diving mask have fixed mirrorized surfaces which reflect light rays from objects at the sides and rear of the mask into a diver's view. In a first aspect of the invention, the fixed mirrorized surfaces are parallel to a front portion of the mask. In a second aspect of the invention, the fixed mirrorized surfaces extend outwardly and rearwardly from the opposite sides of the mask. In a third aspect of the invention, the fixed mirrorized surfaces extend outwardly and forwardly from the side portions of the mask. The compartments are preferably separately sealed to preserve the reflectance of the mirrorized surfaces, prevent fogging and avoid the necessity of cleaning.

Abstract: A diving mask comprising: a supporting member arranged for sealing engagement with the face of the user; a lens means mounted in said supporting member, said supporting member being dimensioned, so that the lens means is positioned near the eyes of the user with a portion of the nose extending forwardly of the lens means to provide a low profile, low internal volume mask; and said lens means being substantially spherical in configuration and having a single center of curvature, whereby the apparent magnification of images underwater is less than that observed through a conventional lens plate.

Abstract: An underwater diver's combination mask and lighting assembly includes a face-plate, a frame, an interface, a lighting assembly and an electrical source. The face-plate is inserted in the frame which has a first side and a second side. The interface is inserted between the frame and the face of the underwater diver. The lighting assembly is mechanically coupled to the frame. The electrical source is electrically coupled to the lighting assembly.

Abstract: A diving mask with supplemental vertical, lateral and posterior fields of vision. A pair of sealed compartments at opposite ends of the diving mask have rotatable mirrorized surfaces which reflect light rays from objects above, below, or the side and rear of the mask into a diver's view. In a first aspect of the invention, the mirrorized surfaces are rotatable about vertical axes to provide supplementary lateral and posterior fields of vision in varying amounts. In a second aspect of the invention, the mirrorized surfaces are rotatable about horizontal axes to provide supplementary vertical and posterior fields of vision in varying amounts. In a third aspect of the invention, the mirrorized surfaces are on members which are rotatable with spherical joints to provide supplementary vertical, lateral and posterior fields of vision in varying amounts.

Abstract: A diving mask having hemispherically-shaped lenses mounted on a flexible gasket or portion and fitted to the contours of a user's face. Laser scanning or topographic mapping is used to determine the contours of the user's face. Edges of the hemispherically-shaped lenses are then shaped to fit the contours of the face. As a result, the spherical center of the lenses substantially coincides with the optical nodal point of the user's eyes, or the center of rotation of the eyes. This virtually eliminates the phenomenon of underwater magnification-distortion caused by the difference in refractive indices of water and air. The diving mask may also have hemispherically-shaped lenses mounted on a support portion. The support portion, in turn, is mounted on a flexible gasket of selected size. A secure seal is provided between the diving mask and a user's face by the flexible gasket. The diving mask may be provided with at least one purge valve.

Abstract: A pair of swimming goggles includes a main frame body with two slots respectively defined in two sides thereof, two elastic straps, and two buckles. Each elastic strap includes a first end, a second end, and a mediate section, each elastic strap being wound through the associated slot. The first end of one of the straps has one of the buckles attached thereto, while the second end of the other strap has the other buckle attached thereto, thereby allowing adjustment of the lengths of the straps in response to a shape of a head of the user.

Abstract: An eyeglass flotation assembly including a first and second resilient ear piece connector each having a curved orifice for resiliently receiving the curved end portion of an eyeglass ear piece; and a strap member secured between the first and second ear piece connectors. The ear piece connectors are constructed from a buoyant material, preferably a plastic foam. In various embodiments the strap member may include an inflatable bladder member housed within a fabric sheath; one of the ear piece connectors may include an inflation mechanism for inflating the bladder member; the other ear connector may includes a valve for adjusting the buoyancy level of the assembly by adjusting the amount of air contained within the bladder member; and the strap member may be equipped with an adjustment slide.

Abstract: A diving mask having hemispherically-shaped lenses mounted on a flexible gasket or portion and fitted to the contours of a user's face. Laser scanning or topographic mapping is used to determine the contours of the user's face. Edges of the hemispherically-shaped lenses are then shaped to fit the contours of the face. As a result, the spherical center of the lenses substantially coincides with the optical nodal point of the user's eyes, or the center of rotation of the eyes. This virtually eliminates the phenomenon of underwater magnification-distortion caused by the difference in refractive indices of water and air. The diving mask may also have hemispherically-shaped lenses mounted on a support portion. The support portion, in turn, is mounted on a flexible gasket of selected size. A secure seal is provided between the diving mask and a user's face by the flexible gasket. The diving mask may be provided with at least one purge valve.

Abstract: An underwater diving mask, including a preformed face piece of suitable material so as to yieldably fit the contour of a wearer's face, and a strap for holding the face piece against the wearer's face. The mask has at least one large opening formed in the forward part thereof, and a rigid plate-like supporting structure carried by the face piece closing the opening. In one embodiment a pair of reducing, single sided concave lenses, one for each eye of the user, are formed in side-by-side relationship in the supporting structure. In another embodiment there is a single plate which is itself a single reducing lens. In yet another embodiment two openings and two lenses are provided, each a reducing lens. So as to properly compensate for the foreshortening effect of the water, the reducing power of the lens system is between zero and -0.50. The supporting member and lenses are prepared directly or treated or coated, such as by dipping, with a coloring agent.

Abstract: A diving mask comprising: a supporting member arranged for sealing engagement with the face of the user; a lens means mounted in said supporting member, said supporting member being dimensioned, so that the lens means is positioned near the eyes of the user with a portion of the nose extending forwardly of the lens means to provide a low profile, low internal volume mask; and said lens means being substantially spherical in configuration and having a single center of curvature, whereby the apparent magnification of images underwater is less than that observed through a conventional lens plate.

Abstract: The invention relates to attractively designed eyeglasses which float and also protect the wearer from the impact of flying object such as hurled pebbles. The eyeglasses of the invention comprise a lens, a frame for holding the lens characterized by a top transverse frame member having an interior side including a lateral flange therealong, temple arms mounted to the frame, and a foam member adhesively bonded to the interior side of the transverse member and partially abutting the flange, the foam member having a buoyancy greater than the weight of the eyewear. The flange prevents the foam strip from being dislodged due to repeated wear and the loss of efficacy of adhesives used to bond the foam strip.

Abstract: An eye-glass frame arrangement fabricated of a combination of a semi-rigid lens retaining support and a semi-flexible nose bridge and semi-flexible temple bows having a retaining strap removably engagable around the back of the head and adapted for use while engaging in activities which involve physical endeavor or usages on or around bodies of water. Closed cell shaped padding is applied to the lens supports facing the eye sockets. The arrangement is formed to have memory so that the lens supports are initially positioned away from the eye sockets and upon tightening of the retaining strap, the arrangement deforms to the shape of goggles so that the lens support padding seals around the eye sockets to protect the eyes of the user from the elements. In another arrangement, the eye pad is integrated with the lens support and hingedly attached to the temple bows.

Abstract: An eyewear apparatus for use in sporting activities is provided that allows convenient view and control of a data display device by an athlete. A data display implant device including a data display and a lens is incorporated in association with sporting eyewear such as a pair of swimming goggles. The data display implant device may be an integral unit of the eyewear or may be a retrofit unit. A watertight switch is provided that can be accommodated within the athlete's mouth to control the data display. In addition, an optical control system may be provided to sense the position of the athlete's cornea to thereby control the data display.

Abstract: Protective eyewear for sports activities and the like having a resilient rigid frame is disclosed. Included is a sealing area around the eyes having a web which diverges outwardly in every direction toward the lens frame. The frame is curvedly contoured around the face of the user and in conjunction with the diverging web, provides both maximum eye protection and peripheral visibility. A semi-rigid frame provides for temple mounting and obviates the need for around-the-head straps.

Abstract: A diving mask has a body for sealably engaging a wearer's face. The mask has one or more transparent viewing plates supported by the body, each having inner and outer surfaces. One or more prisms or simply curved lenses are affixed to the viewing plates to improve the diver's field of vision. A pair of horizontally oriented prisms or lenses may be mounted to a front viewing plate below the diver's normal view plane to provide a field of view directed downward toward the diver's body so as to provide a self-inspection capability. Vertically oriented prisms or lenses may be mounted on front and side plates to produce an enhanced and substantially continuous horizontal peripheral field of view.

Abstract: Pacing goggles are provided which include a pacing device that conveys a rhythmic or periodic visual signal to the swimmer. The intermittent signal provides a metronome-like reference for use in pacing the swimmer's strokes. The frequency of the intermittent signal can be adjusted to correspond with the swimmer's preferred pace. In a preferred embodiment, the pacing device is contained in a waterproof hydrodynamic housing that is mounted to the corner contour of the eye shield of swim goggles.

Abstract: A method and apparatus for enhancing the vision of an individual viewing an object through an optical path through water. The method includes filtering the light that enters one eye of the individual to effect subtractive filtration to compensate for differential light absorption of water, and filtering light that enters the second eye of the individual which does not compensate for the differential light absorption of water. The apparatus includes two light transmitting elements, one of which filters light to effect subtractive filtration to compensate for differential light absorption by water and the other of which does not compensate for the differential absorption of light by water.

Abstract: An underwater diving mask, including a preformed face piece of suitable material so as to yieldably fit the contour of a wearer's face, and a strap for holding the face piece against the wearer's face. The mask has a large opening formed in the forward part thereof, and a rigid plate-like supporting structure carried by the face piece closing the opening. In one embodiment a pair of reducing, single sided concave lenses, one for each eye of the user, are formed in side-by-side relationship in the supporting structure. In another embodiment the plate itself is a single reducing lens. So as to properly compensate for the foreshortening effect of the water, the reducing power of the lens system is between zero and -0.50. The supporting member and lenses are prepared directly or treated or coated, such as by dipping, with a coloring agent.

Abstract: This invention relates to an underwater mask which has on the front two plates made of a transparent material for front vision, and two further transparent plates placed beneath the former and forming an angle greater than 90.degree. and less than 180.degree. therewith. The second pair of clear plates afford peripheral vision down the diver's pectoral region.

Abstract: An improved pair of swim goggles, especially designed for competitive swimming, is comprised of two substantially ovoid, convex lenses secured to a soft neoprene base. The goggles are simply and easily tightened about the head by a one pull toggle mechanism that provides an equal, balanced fit of the eye pieces against the face. The goggles provide less hydrodynamic resistance in the water during swimming and not only reduces fatigue by cutting down on eye strain but allows the swimmer both superior frontal and peripheral vision.

Abstract: An eyewear apparatus for use in sporting activities allows convenient view and control of a data display device by an athlete. A data display implant device including a data display and a lens is incorporated in association with sporting eyewear such as a pair of swimming goggles. The data display implant device may be an integral unit of the eyewear or may be a retrofit unit. A motion sensitive switch may also be included to cause freezing of the display device following each flip-turn of the swimmer. In addition, a radio transmitter and receiver may be used to control the data display device.

Abstract: A water sportsman's face mask for enabling a person swimming on or below the surface of a body of water to view objects in the opposite direction to his normaI line of vision. The mask comprises a frame, a lens mounted in the front portion of the frame, a flexible seal attached to the rear of the frame for forming a water-tight seal between the frame and the face of the swimmer, an adjustable strap for attaching the mask to the swimmer's head, and at least one prism in front of the lens having a pair of complementary faces which are inclined to the lens and internally reflect rays from objects behind the swimmer into his forward field of vision. In a second embodiment, a module is mounted on the front of a mask and has a pair of prisms, each having one member of a pair of complementary inclined faces for viewing objects behind a swimmer.

Abstract: A diving mask comprising a supporting member for sealing engagement with the face of the user, a lens mounted in the supporting member near the eyes of the user to provide a low volume mask, a major portion of the lens being curved so that apparent magnification of images underwater is less than that observed through a conventional flat lens plate, certain portions of the lens being further curved to eliminate or mitigate pincushion-type distortion.

Abstract: Improved eyewear having a single lens (22) supported by a frame (20) which has temples (26) attached to either side by hinges (24). A wrap-around configuration of the frame and lens essentially hides a single circumferential frame to face water impermeable seal assembly (32) comprising a foam rubber layer (34) overlying a deflatable bladder (36). The inner side of the seal is contoured to fit against the human face and the outer side of the seal is contoured to fit within the frame and lens. Extending from the temples are adjustable retaining means (41) comprising two elongated tubular members (40) with open ends formed of a flexible resilient material, being adjusted by a releasable friction catch (44) to prevent the catch from becoming separated from the tubular members. Tubing (38) connects the bladder (36) and interior portions of the glasses to air removal means which can take the form of a mouthpiece (52) or pump (78) placed at the end of the retaining means or attached to the temple ends ( 30).

Abstract: Protective eyewear for sports activities and the like having a resilient rigid frame is disclosed. Included is a sealing area around the eyes having a web which diverges outwardly in every direction toward the lens frame. The frame is curvedly contoured around the face of the user and in conjunction with the diverging web, provides both maximum eye protection and peripheral visibility. A semi-rigid frame provides for temple mounting and obviates the need for around-the-head straps.

Abstract: A water sportsman's face mask for enabling a swimmer on or below the surface of a body of water to view objects which lie substantially above or below his normal line of vision without rotation of the swimmer's head or body. The mask comprises a frame, a lens mounted in the front of the frame, a flexible seal attached to the rear of the frame for forming a water-tight seal between the frame and the face of the swimmer, an adjustable strap for attaching the mask to the swimmer's head, and a pair of triangular prisms mounted on the lens which enable the swimmer to view objects above or below the swimmer's normal line of vision. One face of the prism is mirrorized and is in oblique relationship to the lens. In one embodiment of the invention the prisms are rotatably mounted to the frame and are selectively adjustable to a forward operative position and to a rearward inoperative position.

Abstract: A protective optical device is disclosed. The device includes a transparent shield for protecting a portion of the wearers face and a device for mounting an ophthalmic lens in the transparent shield. The mounting device includes an aperture through the transparent shield, a wall surrounding the aperture and extending forwardly from the shield to a front edge, and a shoulder surrounding the front edge for securing an ophthalmic lens to the front edge. The device allows standard ophthalmic lens to be securely mounted in a protective shield and minimizes the number of lens surfaces of the device.

Abstract: A lens exchangeable goggle having adjustable distance and/or fixing angle of lens units which includes as components a lens unit having a tubular portion, a opening formed with a wider width than the lens unit in a mask frame and a holding mechanism for fixing detachably the lens unit.

Abstract: An axiosymmetric eccentric spherical polycarbonate lens (2) for goggles (1), comprising inner (7) and outer (8) spherical surfaces defined by centers of curvature 0.sub.1 and 0.sub.2 and by radii R.sub.1 and R.sub.2, respectively, 0.sub.1 and 0.sub.2 being both located on the lens's axis of symmetry (5), at a distance D from each other, the lens being more distal from 0.sub.1 than from 0.sub.2, the length of R.sub.2 being about 1.025-1.035 R.sub.1, and that of D about 0.0510-0.0564.

Abstract: An eyeglass retainer is provided for holding eyeglasses afloat in the event the eyeglasses accidentally fall into a body of water. The eyeglass retainer is comprised of an elongated, water impervious, resilient hollow flexible tube having open ends which grip the bows of an eyeglass frame and a float in the form of an open celled plastic block having a pair of parallel openings therethrough. The flexible tube is threaded through the openings prior to attachment of the ends of the tube to the eyeglass bows. The block has a buoyancy greater than the weight of the eyeglasses to thereby hold the eyeglasses close to the surface of a body of water.

Abstract: A floatable eyeglass retainer comprising an elongated, solid cord that is covered with tubular fabric. The cord is made of a buoyant material, which is also flexible. An oval shaped piece of resilient material is fastened directly to each end of the cord by use of a clamp. Covering each clamp is a small piece of tubing made of a buoyant material. A resilient spacer is slipped onto both ovals forming a small opening in which the temple of a pair of eyeglasses is force fed into, keeping the retainer in place on the eyeglasses.

Abstract: A temple mounted flotation device for eyeglasses is detachably attached for use during water related activities to prevent sinking and loss of the eyeglasses. The location of mounting in combination with the shape of the flotation device(s) affords lateral shading of the eye. The mounting structure permits alternative attachment of the flotation device to a head or neck band secured to the glasses.

Abstract: An adjustable strap for use with a diver's face mask includes a flexible, resilient headband having a positive buoyancy in water and an elastic fabric laminated to at least a first side of the headband for comfortably contacting a diver's head to avoid pulling or tangling of the diver's hair.

Abstract: A headband for retaining glasses on the head of a user is formed of a closed cell foam material which is highly buoyant in water. The band has a series of nipples or studs formed into its surface which contacts the back of the head, and these both engage the hair to keep the band from slipping and also tend to hold the body of the band slightly away from the head, for increased air circulation and comfort of the user. The band or strap preferably is of a bright luminescent color so that, if the glasses and attached strap are dropped in water (as in boating), they can be easily found and retrieved.