Abstract: A swing training device is provided. The swing training device embodies a mask adapted to place an aperture at a predefined focal length in front of the eyes of the athlete. The mask is adapted to attach to various headgear. The mask provides guides for selectively retaining diaphragms with their own diaphragmatic apertures over the aperture.

Abstract: Head mounted displays having lens movement assemblies and associated systems and methods are disclosed herein. In one embodiment, a head mounted display system includes a display housing surrounding one or more display devices, a first lens and a second lens. An input device on the display housing includes a control member moveable between a first position and a second position. A lens movement assembly is operatively coupled to the input device and the first and second lenses, and is configured to move the first lens relative to the second lens in response to movement of the control member between the first position and the second position.

Abstract: In the manufacture of gradient polarized sunglasses an optical retarder is used in front of a portion of a polarized lens to destroy the linear polarization of incoming light to render that portion of the sunglass lens non-polarized, thus to permit viewing of polarized displays through that non-polarized portion of the polarized sunglass lens.

Abstract: Provided is a pair of golf eyeglasses having a function of correcting various swing errors and head-up movement, in which a golf ball-colored focus structure is detachably mounted on one of a pair of eyeglasses, to thus form a golf ball-colored focus control circle with a limited field of view, in order to correct errors in various swing actions that frequently occur for golfers. In addition, the pair of golf eyeglasses enables a golfer to make a golf swing practice by using a limited field of view of a golf ball-colored adjustable focus circle, to thereby make the golfer focus more attention on a target golf ball, and recognize various swing errors and the head up movement for himself or herself as soon as the golf ball deviates from the golf ball-colored adjustable focus circle and correct the posture of the golfer, and to thus allow anyone from amateur golfers to professional golfers to conveniently use the golf eyeglasses at low costs.

Abstract: Provided is a pair of golf eyeglasses having a function of correcting various swing errors and head-up movement, in which a golf ball-coloured focus structure is detachably mounted on one of a pair of eyeglasses, to thus form a golf ball-coloured focus control circle with a limited field of view, in order to correct errors in various swing actions that frequently occur for golfers. In addition, the pair of golf eyeglasses enables a golfer to make a golf swing practice by using a limited field of view of a golf ball-coloured adjustable focus circle, to thereby make the golfer focus more attention on a target golf ball, and recognize various swing errors and the head up movement for himself or herself as soon as the golf ball deviates from the golf ball-coloured adjustable focus circle and correct the posture of the golfer, and to thus allow anyone from amateur golfers to professional golfers to conveniently use the golf eyeglasses at low costs.

Abstract: A kit for use by a golfer which provides an improved training aid. The kit includes a plurality of multi-layered sighting devices and a backing sheet. The devices are preferably angular in configuration and have a tacky layer interposed between an outer layer and the backing sheet. The siding device is utilized by removing it from the backing sheet and placing it on a pair of glasses. The sighting devices are irremovably attached to the glasses and are storable on the backing sheet between uses.

Abstract: A visual aid device to provide a reference line for a golfer. The device has an elongated linear member held by opposing clips adapted for securement to the bill of a golf cap. The elongated member may be a stretchable elastic member or a rigid member to provide a reference line for a putter or wedge, for example, as the golfer addresses and strikes the golf ball. Spaced markings may further be utilized to provide additional visual aids to a golfer and advertising or logos may be applied to the clip members.

Abstract: A pair of golf training glasses having protruding apertures extending forward from the plane of the normal lens portion of the glasses which are opaque. The protruding apertures are angled on their sides to allow some directed movement of the eyeball to observe other than directly forward when necessary, while at the same time restricting peripheral vision along a line parallel to the line formed between the golfer's head and the ball that is the object of the golf swing.

Abstract: A pair of golf training glasses having protruding apertures extending forward from the plane of the normal lens portion of the glasses which are opaque. The protruding apertures are angled on their sides to allow some directed movement of the eyeball to observe other than directly forward when necessary, while at the same time restricting peripheral vision along a line parallel to the line formed between the golfer's head and the ball that is the object of the golf swing.

Abstract: The present invention relates to a pair of golf glasses. The glasses are designed to enable the golfer to measure a distance to a golf ball precisely as taking an address position, and make the golfer looking at a ball with keeping his or her head still until a clubhead hits the ball, and thereby prevent the golfer from looking-up mistake during a golf swing. The golf glasses of the present invention are characterized in that each of the lenses of the glasses includes a see-through section formed of a vertical gap corresponding to the pupil of golfer's eye, and the other part is a view shielding.

Abstract: Small flexible decals having a vinyl cling membrane base layer (20) attach onto the lens of conventional spectacles forming a training aid for use in sports activities such as golf. The decals cling firmly to the spectacle lens by cling attraction and do not require an adhesive. The decals occupy a small area of the lens and are positioned directly in line between the user's eyes and visual target. This creates the appearance of a projected decal image superimposed over the visual target. In golf the projected decal image appears superimposed over the golf ball and serves as a visual aid to the golfer. In one embodiment a tinted, transparent projected decal image (18) aids a golfer to establish proper alignment at address and reveals excessive head movement during the golf stroke. In another embodiment an opaque projected decal image (19) prevents the golfer from becoming visually fixated on the golf ball, thereby reducing stress and performance anxiety.

Abstract: The present invention relates to a pair of golf glasses. The glasses are designed to enable the golfer to measure a distance to a golf ball precisely as taking an address position, and make the golfer looking at a ball with keeping his or her head still until a clubhead hits the ball, and thereby prevent the golfer from looking-up mistake during a golf swing. The golf glasses of the present invention are characterized in that each of the lenses of the glasses includes a see-through section formed of a vertical gap corresponding to the pupil of golfer's eye, and the other part is a view shielding.

Abstract: A sports head alignment trainer comprised of a pair telescoping tubes mounted to a bridge or frame provided at its opposite ends with hinge elements to which are connected a pair of temple bars or arms. The telescoping tubes are two identical hollow adjustable multi-scopes each comprised of an inner scope and outer scope that can be selectively retracted or extended. The arms are configured to be placed on the user's head and maintain position by wrapping around a person's ears, like ordinary glasses. The telescoping tubes selectively limit the wearer's field of view thereby preventing the wearer from focusing on a target unless proper head alignment is maintained.

Abstract: A golf ball aligning device (GBAD) (10) that is disclosed as a golf visor (12) and as a golf cap (80). Both the visor (12) and the cap (80) feature a bill (40) that has a front square edge (44), an upper surface (50) and a lower surface (52). To the lower surface (52) and adjacent to the front square edge (44) of the bill (40) is applied a dark non-glare finish (60). Alternatively, to the square front edge (44) of the bill (40) can be attached by means of a living hinge (58) a square movable tab (48) also having a dark non-glare finish (60). The dark non-glare finish (60) when viewed by a golfer, aids in aligning a straight ball trajectory along a golf course. The GBAD (10) can also be designed to include a bill adjusting assembly (114) that interfaces with the right and left head bands (26),(32) and the respective right and left hand bands (26, 32).

Abstract: A removable golf-ball aligning device (RGAD) (10) that is designed to allow a golfer, especially when putting, to align a golf ball to travel in a straight trajectory. The RGAD (10) is designed to be attached to the bill (186) of a golf cap (182) or a golf visor (184) and is comprised of three major elements: a bill attachment member (12), a panel (30) and a means (46) for attaching the panel (30) to the bill attachment member (12). The panel (30) is made of a transparent material (56) and includes a lower section (36) that terminates with a lower straight edge (32). The lower section is coated with a non-glare coating (60) that can consist of a non-glare paint (62) or a black non-glare tape (64).

Abstract: A golf ball aligning device (GBAD) (10) that is disclosed as a golf visor (12) and as a golf cap (80). Both the visor (12) and the cap (80) feature a bill (40) that has a front square edge (44), an upper surface (50) and a lower surface (52). To the lower surface (52) and adjacent to the front square edge (44) of the bill (40) is applied a dark non-glare finish (60). Alternatively, to the square front edge (44) of the bill (40) can be attached by means of a living hinge (58) a square movable tab (48) also having a dark non-glare finish (60). The dark non-glare finish (60) when viewed by a golfer, aids in aligning a straight ball trajectory along a golf course. The GBAD (10) can also be designed to include a bill adjusting assembly (114) that interfaces with the right and left head bands (26),(32) and the respective right and left hand bands (26, 32).

Abstract: A prosthetic device for golfing having an elongate resilient body with an axis, a first end, a second end and an exterior golf club support surface extending along the axis between the first end and the second end. Gripping members are positioned on opposed sides of the golf club support surface adjacent the first end. The gripping members are adapted to grip a golf club shaft and maintain the golf club shaft engaged with the golf club support surface. A coupling is provided at the first end which is adapted to be secured to a terminal device worn by the user. The coupling element may be either a male end or female end attached to the first end.

Abstract: A teaching aid promoting better shots in golf by prompting the user to keep his or her head still. Using a downwardly extending panel, the teaching aid system as described herein provides and/or enhances visual cues to the golfer so that he may keep his head in a still or relatively still position while making the shot. Such shots may particularly include the putt, but may also be applicable to the chip and the drive. A variety of embodiments provide multiple means by which the present system may be implemented. The descending panel may be folded into an invisible, unobtrusive, and/or unobstructive configuration that may either be incorporated into a hat or removably detachable from it.

Abstract: A universal visual shield apparatus, for use with a hockey helmet, is usable for training hockey players by partially blocking a user's field of vision. The apparatus includes a main shield body formed from an elastically deformable material, and is attachable to the helmet using connectors. The main shield body includes a horizontal floor portion and a vertical edge portion that cooperate to block a user from seeing the puck while it is in the user's possession, while still allowing the user to see forward. When worn, the apparatus forces the user to look forward, beyond the puck and stick. The apparatus may include adjustable apparatus straps, and can be used on any sized helmet without modifying the helmet or the apparatus. Because the apparatus is soft and crushable, the apparatus will not harm the user or another player if they are involved in a collision on the ice.

Abstract: A method for applying a putter alignment indicator to a putter to aid in aligning the putter during a putting stroke. The method includes providing a substantially planar alignment surface and having a golfer, while standing in the golfer's normal putting stance, place the striking surface of the putter head against the substantially planar alignment surface. A light source directs a beam of light onto the elongated shaft to create a shadow on the heel portion of the putter head. The position of the light source is adjusted until the first edge and the second edge of the shadow, as viewed by the golfer when standing in the golfer's normal putting stance, appear adjacent to or directly behind the shaft. An alignment indicator is applied to the putter head adjacent to at least one edge of the shadow.

Abstract: Golf training glasses to assist a golfer's swing comprising a frame, a pair of lenses associated with the frame and a sight guide associated with each lens. The sight guide includes an upper guide bar and a lower guide bar, wherein the upper and lower guide bars extend from the right side of the lens to the left side of the lens. The upper guide bar is separated at least partially from the lower guide bar to form a shot pathway between the upper and lower guide bars. Moreover, the upper and lower guide bars at least partially converge toward one of the right and left sides of the lens to form a converging shot pathway to focus a shot line of the golfer. Additionally, the sight guide further includes a ball placement locator for positioning of the ball relative to the shot pathway, and foot placement guides to help align a golfer's stance with the ball, the shot pathway and the club path.

Abstract: A pair of sports training eyeglasses is provided for training a user to keep his/her eye on a ball while hitting either a stationary ball, e.g. in golf or hockey, or a moving ball, e.g., in baseball and softball. The pair of sports training eyeglasses have a pair of lenses, each lens having an opaque peripheral region and a viewing aperture, and a frame having an elongated bridge bar having opposite ends, a pair of opposing temporal side members extending from respective ends of the elongated bridge bar, a means for adjusting the position of each temporal side member in relation to the elongated bridge bar, a movably nose piece, a means for removably attaching each lens to the elongated bridge bar, wherein the position of each lens is adjustable in relation to the nose piece, and a means for locking the position of each lens on the elongated bridge bar. A first set of lenses is provided having an oval shaped viewing aperture and is used in training a user to hit a moving ball.

Abstract: Golf training glasses to assist a golfer's swing comprising a frame, a pair of lenses associated with the frame and a sight guide associated with each lens. The sight guide includes an upper guide bar and a lower guide bar, wherein the upper and lower guide bars extend from the right side of the lens to the left side of the lens. The upper guide bar is separated at least partially from the lower guide bar to form a shot pathway between the upper and lower guide bars. Moreover, the upper and lower guide bars at least partially converge toward one of the right and left sides of the lens to form a converging shot pathway to focus a shot line of the golfer. Additionally, the sight guide further includes a ball placement locator for positioning of the ball relative to the shot pathway, and foot placement guides to help align a golfer's stance with the ball, the shot pathway and the club path.

Abstract: A device for training a golfer not to turn his head as he hits the ball including a visor that snaps down in front of the golfer's face and interrupts his line of sight to the ball. The golfer views the ball through a low power lens that is attached to the center of the visor. The lens has alignment marks which the golfer aligns with target marks on the gound When the golfer strikes the ball, the ball will disappear from the field of view but, if the golfer succeeds in sutaining his head position, the alignment marks will remain aligned with the target marks. In one embodiment, the device is worn like a pair of glasses. In another embodiment, the visor is attached to a cap worn by the golfer. The distance from the visor to the golfer's face is adjustable.

Abstract: An optical reference marker system comprising at least one optical reference marker and a storage member, wherein the storage member is adapted to hold the optical reference marker. The optical reference marker typically comprises a thin film material such as vinyl, and is adapted to be removably attached to a lens on a pair of glasses on a golfer's head. Thus, a golfer may select the appropriate optical reference marker for the ensuing shot, and thereafter return it to the storage member, which may comprise a laminated card.

Abstract: The present invention provides a device and method for assisting a person in achieving proper alignment. The device and method are particularly useful for achieving proper alignment for a golf stroke in which a golf ball is struck to move towards a target. In one embodiment, the device comprises a support member to be worn by the person. A light source is attached to the support member. The light source is adapted to generate a generally linear, visible alignment beam of light on the ground in front of the person when the person is in position to perform a task. The alignment beam is generally parallel to an alignment of the portion of the person's body upon which the support member is worn and, thus, provides an indication of such alignment readily visible to the user in real time.

Abstract: A mirrored device which allows the athlete to observe his motions as he performs. Specifically as this invention relates to golf, the system trains these fundamentals: steady head control; correct alignment; proper golfing posture; the proper swing paths for the backswing and downswing. These goals are accomplished by: a large mirror to reflect the golfer's side that is opposite the direction he is driving the ball, this mirror is comprised of a diagram and moveable,adhesive strips which serve as visual guides for instillment of the mentioned fundamentals; a pair of angularly arranged mirrors which are supported by a visored headgear that the golfer wears.The user adjusts the small angled mirrors for sighting himself. Following the charting of his proper backswing and downswing planes with the moveable strips, he guides his club, and hands along the relection of these strips with the purpose of memorizing the feel of these correct motions.

Abstract: There is provided a golf aid device (10) for aiding a user to strike a golf ball in a predetermined manner. The device (10) generally includes a support (20) to be worn securely on the user's head; and, a self-adjusting visual guide assembly (30) coupled to the support (10). The self-adjusting visual guide assembly (30) includes an alignment portion (32) disposed in spaced relation to the support (10) for visually delineating within the user's line of sight the projected path that the golf ball is to travel upon being struck in the predetermined manner. The self-adjusting visual guide assembly (30) also includes a mechanism for pivotally coupling the alignment portion (32) to the support (10), whereby the orientation of the alignment portion (32) relative to the given playing surface in at least one plane of motion is substantially preserved independent of the user's head movement in that plane of motion.

Abstract: A golf ball sighting device for use as a teaching aid by encouraging a golfer to keep his head stationary while executing a golf swing comprising a sighting element having a viewing portion therein which is sized and configured to allow a golf ball to be viewed therethrough and a mounting member disposed on the sighting element to interconnect the sighting element to an item worn by the golfer.