Patent Publication Number: US-2021186760-A1

Title: Eyewear with integrally formed barrier

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims the benefit of U.S. Provisional Application No. 62/951,597 filed Dec. 20, 2019, which is incorporated herein by reference in its entirety. 
    
    
     FIELD 
     Embodiments described herein generally relate to eyewear. Specifically, embodiments described herein relate to a goggle having an integrally formed barrier. 
     BACKGROUND 
     A goggle is a type of eyewear that typically covers a significant portion of the face of the user beyond the eyes. A goggle is usually formed to follow the contour of the wearer&#39;s face for better protection of the wearer&#39;s eyes and face. This type of eyewear is usually designed for activities that require increased protection of the wearer&#39;s eyes and face such as snow sports, motorcycle racing, and bicycle racing. 
     A typical goggle includes a transparent lens that is supported by a frame. The frame provides structural support to the lens and can surround the edge of the lens. The goggle may be constructed by forming and arranging a gasket between the frame and lens along a perimeter of the lens. The gasket forms a seal that prevents moisture and particulate matter from passing beyond the lens and contacting the wearer&#39;s face and eyes. 
     Typically, the gasket may be formed by cutting the gasket from a block or sheet of foam. For example, the gasket may be formed from a urethane foam, such as Poron®. Cutting the gasket from a block of foam may result in considerable waste of the unused portion of the block of foam, which may not readily be used or recycled due to the shape of the gasket. 
     BRIEF SUMMARY OF THE INVENTION 
     Some embodiments described herein relate to a goggle that may include a movable unitary lens having an interior surface, and a chassis. The chassis of the goggle may include a body defining a central opening wherein the body is configured to be worn on a wearer&#39;s face and a barrier integrally formed with the body. The barrier of the chassis of the goggle may have an exterior surface configured to contact the interior surface of the lens along a perimeter of the lens so as to form a seal with the lens. 
     In any of the various embodiments described herein, the barrier may include a blade connected to and extending from an inner edge of the body proximal to the central opening toward an outer edge of the body distal to the central opening, and the blade may contact the interior surface of the lens. 
     In any of the various embodiments described herein, the blade may extend from an exterior facing side of the body of the chassis at an angle relative to a vertical axis of the goggle, such that the angle may be in a range from approximately 15 degrees to approximately 45 degrees. 
     In any of the various embodiments described herein, the barrier has a thickness of 0.5 mm to 1 mm as measured from the exterior surface of the barrier to an interior surface of the barrier. 
     In any of the various embodiments described herein, the chassis may include an elastomer. 
     In any of the various embodiments described herein, the chassis may include a thermoplastic polyurethane. 
     In any of the various embodiments described herein, the chassis may include a material having a Shore A hardness range of approximately 70 to approximately 100. 
     In any of the various embodiments described herein, the barrier may have a first and second ridge on the exterior surface of the barrier, such that the first and second ridges are each configured to contact the interior surface of the lens. 
     In any of the various embodiments described herein, the barrier may include a tip that is rounded. 
     In any of the various embodiments described herein, the chassis may include a chassis material, and the goggle may further include a frame connected to the chassis, wherein the frame may be formed of a frame material that is more rigid than the chassis material. In some embodiments, the chassis may be overmolded onto the frame. 
     In any of the various embodiments described herein, the lens may be fully removable from the frame. 
     In any of the various embodiments described herein, the goggle may further include a frame connected to the chassis, and a locking assembly configured to secure the lens to the frame. In some embodiments, the locking assembly may be the frame, and the lens may be secured to the frame by an interference fit. 
     In any of the various embodiments described herein, the barrier may be compressed by the lens. 
     In any of the various embodiments described herein, the chassis may support the lens. 
     Some embodiments described herein relate to a goggle that may include a frame including a frame material, a movable unitary lens having an interior surface and an exterior surface, and a chassis including a chassis material that is less rigid than the frame material. The chassis of the goggle may include a body defining a central opening, wherein the body is configured to be worn on a face of a wearer. The chassis of the goggle may further include a barrier integrally formed with the body, and the barrier of the chassis of the goggle may include a blade having an exterior surface that contacts the interior surface of the lens so as to form a seal with the lens. 
     In any of the various embodiments described herein, the goggle may further include a locking assembly configured to secure the movable unitary lens to the frame. 
     In any of the various embodiments described herein, the blade may be arranged between the lens and the body of the chassis. 
     In any of the various embodiments described herein, the chassis may be overmolded onto the frame. 
     In any of the various embodiments described herein, the lens of the goggle may include two or more layers. 
     In any of the various embodiments described herein, the chassis material may include an elastomer. 
     In any of the various embodiments described herein, the chassis material may include a thermoplastic polyurethane. 
     In any of the various embodiments described herein, the barrier may extend along a perimeter of the lens. In some embodiments, the barrier may extend along the entire perimeter of the lens. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS/FIGURES 
       The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the present disclosure and, together with the description, further serve to explain the principles thereof and to enable a person skilled in the pertinent art to make and use the same. 
         FIG. 1  shows a perspective view of a goggle according to an embodiment. 
         FIG. 2  shows a front perspective view of a chassis of the goggle of  FIG. 1 . 
         FIG. 3  shows a side view of the chassis of the goggle of  FIG. 1 . 
         FIG. 4  shows a close-up perspective view of an upper end of the chassis of the goggle of  FIG. 1 . 
         FIG. 5  shows a front view of a lens of a goggle according to an embodiment showing a location at which a chassis of goggle contacts the lens. 
         FIG. 6  shows a cross sectional view of the goggle of  FIG. 1  taken along line  6 - 6  as shown in  FIG. 1 . 
         FIG. 7  shows a detailed cross sectional view of the upper end of the goggle as shown in  FIG. 6 . 
         FIG. 8  shows a cross sectional view of a barrier according to an embodiment. 
         FIG. 9  shows a cross sectional view of a barrier according to an embodiment. 
         FIG. 10  shows a cross sectional view of the goggle of  FIG. 1  taken along line  10 - 10  as shown in  FIG. 1 . 
         FIG. 11  shows a top down plan view of a chassis and a lens of a goggle according to embodiment. 
         FIG. 12  shows a front view of a goggle according to an embodiment. 
         FIG. 13  shows a cross sectional view of the chassis of the goggle of  FIG. 12  taken along line  13 - 13  as shown in  FIG. 12 . 
         FIG. 14  shows a detailed cross sectional view of the upper end of the goggle of  FIG. 12 . 
         FIG. 15  shows a perspective view of a goggle having a locking assembly according to an embodiment in which the locking assembly in an open position. 
         FIG. 16  shows a perspective view of the goggle having a locking assembly of  FIG. 15  with the locking assembly in a closed position. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Embodiments of the present disclosure will now be described in detail in the accompanying drawings. References to “one embodiment,” “an embodiment,” “an exemplary embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described. 
     As discussed in the Background, goggles typically use a separately formed gasket for providing a seal between a lens and a frame of the goggle. The use of a separate gasket adds complexity to the manufacturing process by requiring an extra component to be formed and assembled with the frame and lens. Further, the use of a separate gasket increases the expense of manufacturing the goggle. 
     Accordingly, embodiments of the present disclosure provide a goggle having a chassis with an integrally formed barrier. By forming the barrier as part of the chassis, the manufacturing process is simplified because the chassis and barrier are formed in a single step and there is no need to secure a separate gasket to the chassis. The integrally formed chassis and barrier can maintain a seal between the lens and chassis, preventing or inhibiting moisture and particulate matter from passing around lens and contacting the wearer&#39;s face and/or eyes. 
     As used herein, the term “horizontal” refers to a direction substantially parallel to a line extending between the eyes of a wearer. As used herein, the term “vertical” refers to a direction substantially perpendicular to the horizontal direction and along an eyewear&#39;s lens&#39;s surface. 
       FIG. 1  shows a goggle  100  having an integrally formed barrier according to an embodiment. Goggle  100  may be used for activities where eye protection is desired, such as motocross, snowboarding, or skiing, among others. Goggle  100  may include a lens  180  that covers a field of view of a wearer. Lens  180  may be movably securable to a frame  150  of goggle  100 . Frame  150  may provide goggle  100  with structural support and impact-resistance. For example, opposing sides of lens  180  may be secured to opposing sides of frame  150  via an interference fit with frame  150 , or via a locking assembly  170 , as described in further detail herein. In an aspect, lens  180  may be secured to frame  150  only at sides of lens  180  so that lens  180  is not secured to frame  150  about an entire perimeter  185  of lens  180 . This may help to allow lens  180  to bend or flex when goggle  100  is worn by a wearer. Frame  150  is configured to support lens  180  in the wearer&#39;s field of view. A chassis  120  may be connected to frame  150  of goggle  100 , and chassis  120  is configured to be compliant so as to fit closely to a face of a wearer. Chassis  120  is configured to form a seal with lens  180 . In some embodiments chassis  120  may be overmolded onto frame  150 . However, chassis  120  may alternatively be connected to frame  150  via interference fit, mechanical fasteners, or adhesives, among other fastening methods. 
     Lens  180  may be a unitary lens  180 , such that a single lens  180  covers both eyes of the wearer. However, in some embodiments, lens  180  may be a dual lens with one lens covering each eye of the wearer. In some embodiments, lens  180  may include a single layer, or may include multiple layers. In some embodiments, lens  180  may be a laminated lens  180  formed by a series of stacked layers. In some embodiments, layers of lens  180  may include an outer layer and an inner layer that are separated by a space. The space may be filled with air or another gas to provide an air gap for thermal insulation. 
     Lens  180  includes an exterior surface  181  facing away from a wearer when goggle  100  is worn, and an opposing interior surface facing toward a wearer&#39;s face when goggle  100  is worn. In some embodiments, lens  180  may have a curvature, and an interior surface of lens  180  may have a concave curvature so as to contour to a shape of a wearer&#39;s face or head. Lens  180  may be spaced from a wearer&#39;s eyes and face so as to define a zone that is protected from moisture and particulate matter when goggle  100  is worn. 
     Lens  180  may be formed from any of various transparent materials, such as glass, for example a silicate glass, polycarbonate, polymethylmethacrylate, among other transparent materials. Lens  180  may be formed from a material that is strong, durable, and/or impact-resistant so that lens  180  does not readily crack or break and can withstand impact. In some embodiments, lens  180  may include a coating on an exterior surface and/or interior surface of lens  180 , such as an anti-reflective coating, an anti-glare coating, or a UV-protective coating, among others. 
     In some embodiments, lens  180  may be movable. A goggle having a movable lens is described, for example, in U.S. Pat. Nos. 7,200,875 and 9,192,520, which are each incorporated herein by reference in their entirety. Lens  180  may be movably attached to frame  150  or chassis  120  of goggle  100  so as to slide or pivot relative to frame  150  or chassis  120  for controlling ventilation. In some embodiments, lens  180  is fully removable from frame  150  or chassis  120  so that lens  180  may be replaced. Because lens  180  is removable, lens  180  may be interchanged with other lenses. Thus, lens  180  may be replaced if broken, cracked, or otherwise damaged without having to replace goggle  100  in its entirety. Further, a wearer may desire to interchange lenses  180  that have different properties. For example, a first lens  180  may be tinted or may have an anti-glare coating for use on bright days, while a second lens  180  may have multiple layers so as to provide improved thermal insulation. Further, a wearer may simply wish to interchange lenses  180  for aesthetic purposes to provide goggle  100  with a desired appearance. Additionally, lens  180  may be removable such that the wearer may be able to remove lens  180  without removing goggle  100  from the wearer&#39;s head. 
     In some embodiments, goggle  100  may include a frame  150 . Frame  150  may provide structural support to goggle  100 . Frame  150  may be shaped similarly to a perimeter  185  of lens  180  when viewed from the front, and may be connected to chassis  120  around a perimeter of chassis  120 . In some embodiments, frame  150  may be configured to secure lens  180 . When lens  180  is secured to frame  150 , interior surface  182  of lens  180  is in contact with chassis  120 , and frame  150  maintains lens  180  in position in a wearer&#39;s field of view. In some embodiments, frame  150  may include various additional components of goggle  100 , such as one or more of outriggers  192 , a strap, a nose guard, and a locking assembly  170 , among other components. 
     Frame  150  may be connected to chassis  120  of goggle  100 . Chassis  120  may be overmolded onto frame  150 , or chassis  120  and frame  150  may be separate components that are assembled along with lens  180  during the manufacture of goggle  100 . Chassis  120  may be secured to frame  150  for example via a snap fit, press fit, interference fit, or chassis  120  and frame  150  may include mating components. In some embodiments, for example, body  122  of chassis  120  may include a recess  127  configured to receive a protrusion  152  of frame  150  (see, e.g.,  FIG. 6 ). Chassis  120  may be permanently secured to frame  150  such as by the use of mechanical fasteners, epoxy or adhesives, among other types of fasteners or fastening methods. 
     Frame  150  may be formed of a frame material that differs from chassis material used to form chassis  120 . Frame material may include, for example, a nylon polymer, such as TR90 nylon. In some embodiments, frame material may be a high durometer rubber relative to the chassis material. In an aspect, frame material may have a greater rigidity than the chassis material, so that frame  150  is more rigid and less flexible than chassis  120 . Thus, frame  150  can provide structural support to goggle  100  and helps goggle  100  maintain its shape. Further, frame  150  may help to maintain proper lens curvature so as to preserve optics of goggle  100 . A goggle having a frame made of a material that is more rigid than a material of a chassis is described, for example in U.S. Pat. No. 8,881,316, which is incorporated herein by reference in its entirety. 
     Chassis  120  may be shaped so as to contour to a wearer&#39;s face. For example, an upper end  102  of chassis  120  may extend across a forehead of a wearer, a lower end  104  of chassis  120  may extend over a wearer&#39;s cheeks and nose, and sides of chassis  120  extend along the sides of the wearer&#39;s face so as to connect upper end  102  and lower end  104  of chassis  120 . Chassis  120  may be shaped similarly to an outer perimeter  185  of lens  180  as chassis  120  is configured to contact an interior surface  182  of lens  180  around at least a portion of a perimeter  185  of lens  180 . Chassis  120  defines a central opening  125  configured to be covered by lens  180 . Chassis  120  may be arranged between frame  150  and lens  180 . 
     In some embodiments, goggle  100  may have a frameless construction and does not include a frame  150 . In such embodiments, goggle  100  may include a chassis  120  and a lens  180 , and lens  180  may have sufficient structural rigidity to serve as the main structural support of goggle  100 . In such embodiments, in addition to fitting to a wearer&#39;s face and forming a seal with lens  180 , chassis  120  may serve to support lens  180  and other components of goggle  100 . For example, chassis  120  may include a locking assembly for securing lens  180 , and in some embodiments, locking assembly may include magnetic fasteners or mechanical fasteners, among other fastening mechanisms for securing lens  180  to chassis  120 . In such embodiments, chassis  120  may include various additional components of goggle  100 , such as one or more of outriggers  192 , a strap, a nose guard, and a locking assembly  170  as described herein, among other components. 
     In some embodiments, chassis  120  of goggle  100  can include a body  122  and a barrier  130 , as shown in  FIGS. 2 and 3 . Body  122  and barrier  130  of chassis  120  are integrally formed so that chassis  120  has a unitary construction and is formed as a single piece. Forming the integral barrier  130  removes the need for a separate gasket that must be assembled, thus simplifying manufacture of goggle  100 . Chassis  120  may be formed, for example, by molding, such as by injection molding, compression molding, or transfer molding, among other molding methods. In some embodiments, chassis  120  may be formed by additive manufacturing methods (e.g., 3-D printing). 
     Body  122  of chassis  120  may have an exterior facing side  121  that faces away from a wearer&#39;s face, and a body facing side  123  that faces toward a wearer&#39;s face when a goggle  100  is worn. In some embodiments, body facing side  123  may be placed in contact with wearer&#39;s face. Thus, body  122  of chassis  120  is configured to rest against a wearer&#39;s face, and barrier  130  is configured to contact lens  180  of goggle  100 . Further, in embodiments having a frame  150 , body  122  may be connected to frame  150  of goggle  100 . Body facing side  123  of chassis  120  may be curved and may have a concave curvature so as to contour to a shape of a wearer&#39;s head. 
     Barrier  130  of chassis  120  is integrally formed with and extends from body  122  of chassis  120 , as shown for example in  FIG. 4 . Barrier  130  may extend from an exterior facing side  121  of body  122  of chassis  120 . Barrier  130  may extend from an entire perimeter of body  122  of chassis  120  (see, e.g.,  FIG. 2 ). 
     In some embodiments, barrier  130  may touch interior surface  182  of lens  180  adjacent outer perimeter  185  of lens  180 . Outer perimeter  185  of lens  180  may be defined as an outermost boundary of lens  180 . Barrier  130  may contact an interior surface of lens  180  adjacent to at least a portion of outer perimeter  185  of lens  180 . In some embodiments, barrier  130  may contact lens  180  along substantially an entire perimeter  185  of lens  180 . In such embodiments, barrier  130  may contact interior surface of lens  180  along perimeter  185  except in locations where it is desired to provide vents or venting. Barrier  130  may contact lens  180  at boundary  129 , as shown in  FIG. 5 . Boundary  129  is inward of perimeter  185  of lens  180  and generally follows perimeter  185  of lens  180 . For example, boundary  129  may be arranged at a distance of 1 mm to 15 mm inward of outer perimeter  185  of lens  180 . In this way, barrier  130  may form a seal with lens  180  along boundary  129  at which barrier  130  contacts lens  180 . Boundary  129  may be further spaced from outer perimeter  185  at sides  187 ,  189  of lens  180 . For example, boundary  129  may be spaced from outer perimeter  185  at sides  187 ,  189  of lens  180  by 8 mm to 15 mm, so as to allow space for connection of lens  180  to frame  150  at sides  187 ,  189  of lens  180 . 
     In some embodiments, barrier  130  contacts only an interior surface  182  of lens  180 . In some embodiments, barrier  130  contacts only an interior surface  182  of lens  180  and a perimeter edge  186  of lens  180 . Perimeter edge  186  may be defined as an edge of lens  180  between interior surface  182  and exterior surface  181  of lens  180  at perimeter  185  of lens  180 . In such embodiments, barrier  130  does not contact an exterior surface  181  of lens  180 . Thus, barrier  130  does not contact both surfaces of lens  180  and does not wrap around or grip perimeter edge  186  of lens  180 . Barrier  130  does not serve as a clamp or bracket to secure lens  180 , and instead lens  180  may be secured to frame  150  (or chassis  120  in frameless embodiments) of goggle  100  by a locking assembly, such as magnetic fasteners, mechanical fasteners, or locking assembly  170  (see, e.g.,  FIGS. 15 and 16 ), as discussed in further detail herein. 
     Barrier  130  may be connected to an inner edge  126  of body  122  adjacent to central opening  125  and may extend outwardly from exterior facing side  121  of body  122  in a direction toward outer edge  128  of body  122  away from central opening  125 , as shown in  FIG. 6 . A channel  138  may be formed between barrier  130  and body  122  of chassis  120 , and particularly between an exterior facing side  121  of body  122  and interior surface  132  of barrier  130 . In some embodiments, channel  138  may have a V-shape. In some embodiments, however, barrier  130  may extend from exterior facing side  121  of body  122  of chassis  120  and may be connected to an outer edge  128  of body  122  rather than to inner edge  126  of body  122 . In such embodiments, barrier  130  may extend in a direction from outer edge  128  toward inner edge  126  of body  122 . Barrier  130  need not extend entirely from outer edge  128  to an inner edge  126  of body  122 . 
     In some embodiments, barrier  130  may be formed as a blade  133 , as shown in  FIG. 6 , and blade  133  may be substantially linear. However, in some embodiments, blade  133  may have a curvature. Blade  133  may include a tip  136  opposite end of blade  133  connected to body  122  of chassis  120 . Tip  136  and/or an exterior surface  131  of barrier  130  may contact interior surface  182  of lens  180 . 
     Blade  133  may have a constant thickness along its length, where the thickness T is measured as a shortest distance from an exterior surface  131  to an interior surface  132  of blade  133 , as shown in  FIG. 7 . In some embodiments, a maximum thickness of blade  133  may range from approximately 0.5 mm to approximately 1 mm. Blade  133  may have a thickness such that blade  133  may flex. As thickness of blade  133  increases, the flexibility of blade  133  decreases. Thus, thickness of blade  133  depends in part on the material used to form blade  133  as will be readily understood by one of ordinary skill in the art. In some embodiments, blade  133  may taper from body  122  toward tip  136  of blade  133  such that thickness decreases towards tip  136 . In some embodiments, tip  136  may be rounded. However, in some embodiments, tip  136  of barrier  130  may taper toward a point, or may be squared. 
     In some embodiments, barrier  130  may form an angle A relative to a vertical axis X of chassis  120  or goggle  100  when barrier  130  is in a resting or non-compressed state, as shown in  FIG. 7 . Angle A may range from approximately 15 degrees to approximately 45 degrees, approximately 20 degrees to approximately 40 degrees, or approximately 25 degrees to 35 degrees. Barrier  130  may extend along body  122  of chassis  120  so as to contact lens  180  about an entire perimeter  185  of lens  180 . Angle A formed by barrier  130  may be constant about a perimeter of chassis  120  or may vary. For example, angle A may be relatively large at a central portion of chassis  120  and may be relatively small toward sides of chassis  120 , as shown for example in  FIG. 10 . 
     In some embodiments, barrier  830  may be non-linear, as shown for example in  FIG. 8 . Barrier  830  may have a chevron or inverted V-shaped pattern so as to form one or more peaks  837 . In  FIG. 8 , barrier  830  is shown as having two peaks  837 . In such embodiments, barrier  830  may have a M-shape (or W-shape), such that peaks  837  are formed on an exterior surface  831  of barrier  830 . In this way, lens contacts peaks  837  of barrier  830  when lens is secured to frame of goggle. In such embodiments, barrier  830  is spaced from body  822  of chassis by a channel  838 . 
     In some embodiments, barrier  930  may have a curvature, as shown for example in  FIG. 9 . Specifically, an exterior surface  931  of barrier  930  may be curved. Barrier  930  may be curved such that an end portion or tip  936  of barrier  930  is substantially parallel to body  922  of chassis, as shown in  FIG. 9 . In this way, lens may contact exterior surface  931  of barrier  930  along a length of barrier  930 . Barrier  930  may be spaced from body  922  of chassis by a channel  938 . 
     Lens  180  and chassis  120  may be formed so as to have the same curvature so that lens  180  is in contact with chassis  120  along boundary  129  as shown in  FIG. 5 . However, due to manufacturing tolerances, and bending or deformation of chassis  120  or lens  180  during use of goggle  100 , there may be some mismatch or separation of lens  180  and chassis  120 , as shown in  FIG. 11 . For example, lens  180 , and particularly an interior surface  182  of lens  180  may have a radius of curvature r 1  and chassis  120 , particularly an exterior facing side  121  of chassis  120  may have a second radius of curvature r 2  that differs from r 1 . The mismatch in the radius of curvature may result in a gap or separation in which moisture and particulate matter could pass behind lens  180 . Barrier  130  of chassis  120  helps to account for such mismatches of lens  180  and chassis  120 , as barrier  130  extends outward from exterior facing side  121  of body  122  of chassis  120  and may be compressed by lens  180 . Barrier  130  may be under greater compression in locations at which there is little to no mismatch in the curvature of chassis  120  and lens  180  and may be compressed to a lesser degree in locations in which there is a mismatch of lens  180  and chassis  120 . In this way, barrier  130  may fit closely against interior surface  182  of lens  180  along a perimeter  185  of lens  180 . Lens  180  and chassis  120  may have a greater mismatch at a central portion of goggle  100  as lens  180  is secured to frame  150  only at sides of frame  150  and not along an entire perimeter  185  of lens  180 . 
     When barrier  130  is compressed, barrier  130  bends or flexes so that interior surface  132  of barrier  130  moves toward exterior facing side  121  of body  122  of chassis  120 , reducing the size of channel  138 . The ability of barrier  130  to flex helps to prevent any breaks in the seal formed by contact of barrier  130  and lens  180 . In this way, barrier  130  may help to form a seal to prevent moisture or particulate matter from passing around lens  180  and reaching a wearer&#39;s face and eyes. Barrier  130  may extend around an entire perimeter of body  122  so as to contact interior surface  182  of lens  180  and form a seal around an entire perimeter of lens  180 . 
     In some embodiments, barrier  130  may have a length of approximately 1 mm to approximately 10 mm, approximately 2 mm to approximately 9 mm, or approximately 3 mm to approximately 8 mm. Length of barrier  130  is measured from a point of connection of barrier  130  to body  122  to a tip  136  of barrier  130  along an exterior surface  131  of barrier  130 . 
     In some embodiments, a chassis  220  may include a barrier  230  having ridges, as shown in  FIG. 12 . Chassis  220  may be constructed similarly to chassis  120  as described above and differs only in the configuration of barrier  230 . Thus, chassis  220  is shaped so as to contour to a wearer&#39;s face. Chassis  220  defines a central opening  225  that is covered by a lens. Chassis  220  may include a body  222  and a barrier  230 . Barrier  230  may extend from an exterior facing side  221  of chassis  220  so as to contact a lens of a goggle. 
     As shown in  FIG. 13 , barrier  230  extends outwardly from an exterior facing side  221  of body  222  of chassis  220  from an inner edge  226  toward an outer edge  228 . Barrier  230  may have a linear portion  235  and an end portion  236 . Linear portion  235  may form an angle A relative to a vertical axis X of chassis  220  of approximately 15 to approximately 45 degrees. End portion  236  of barrier  230  may be non-linear with respect to linear portion  235 , and may extend generally parallel to a vertical axis X of chassis  220 . 
     In some embodiments, an exterior surface  231  of barrier  230  that contacts lens may include one or more ridges  237 . In the embodiment of  FIG. 13 , barrier  230  includes two ridges  237 ,  239 , however, it is understood that barrier  230  may include one ridge, or three or more ridges in alternate embodiments. Ridges  237 ,  239  extend around a perimeter of barrier  230  and may be arranged generally parallel to one another. Each ridge  237 ,  239  may have a separate point of contact with a lens of goggle  200  so that barrier  230  contacts lens at multiple points of contact. This helps to ensure that a seal is maintained between chassis  220  and a lens. For example, in the event ridge  237  does not contact lens, ridge  239  may maintain contact with lens, thus maintaining the seal. Adding additional ridges may further help to ensure that a seal is maintained at all times. 
     Barrier  230  may be arranged at an angle A relative to a vertical axis X of chassis  220 , as shown in  FIG. 14 . A portion of barrier  230 , such as linear portion  235 , may form an angle A that is in a range of approximately 15 degrees to approximately 45 degrees, approximately 20 to approximately 40 degrees, or approximately 25 to approximately 35 degrees. However, as discussed above with respect to barrier  130 , an angle of barrier  230  and/or a length of barrier  230  may vary around a perimeter of chassis  220 . 
     As best shown in  FIG. 14 , each ridge  237 ,  239  may be rounded and may have a convex curvature. For example, each ridge  237 ,  239  may have a cross section that is semi-circular. However, it is understood that ridges  237 ,  239  need not be perfectly semi-circular. Further, each ridge  237 ,  239  may have the same shape or may differ in shape. In some embodiments, each ridge  237 ,  239  may have a square or triangular cross sectional area. Ridges  237 ,  239  may be spaced from one another and may be arranged generally parallel to one another. 
     In some embodiments, goggle  100  may include a locking assembly  170  configured to removably secure lens  180  to goggle  100 , as shown in  FIGS. 15 and 16 . When lens  180  is secured to goggle  100  via locking assembly  170 , lens  180  may exert a force on barrier  130  of chassis  120  such that barrier  130  is under compression. 
     In some embodiments, chassis  120  or frame  150  of goggle  100  may serve as a locking assembly  170 . In such embodiments, lens  180  may be secured to frame  150  via press fit, friction fit, interference fit, or by snap fit, among other removable types of connection. Frame  150  may include a recess or slot configured to receive a portion of lens  180 , such as a side of lens  180  to removably secure the same to frame  150 . Frame  150  may be secured to opposing sides of lens  180 . 
     In some embodiments, as shown in  FIGS. 15 and 16 , locking assembly  170  may include a pair of locking arms  172 . Locking arms  172  may be movably connected to frame  150  so as to move from an open, unlocked position to a closed, locked position. In the open position, locking arm  172  is rotated outward and away from lens  180  and frame  150  of goggle  100 . In the closed position, locking arm  172  is rotated toward a side  187  of lens  180  and may overlay or enclose a portion of lens  180 , such as a first side  187  of lens  180 . In the closed position, locking arms  172  extends along frame  150  so that locking arm  172  has a continuous appearance with frame  150 . A first locking arm  172  may be connected to a first side of frame  150  and is configured to secure a first side  187  of lens  180  and a second locking arm  172  may be connected to a second side of frame  150  opposite first side of frame  150  and is configured to secure a second side  189  of lens  180 . First and second locking arms  172  may be connected to frame  150  via a hinge  174  or other pivot point so as to that locking arms  172  may rotate or move in a single plane. Goggle  100  may include a locking assembly as described, for example, in U.S. Pat. No. 8,881,316, which is incorporated herein by reference in its entirety. 
     In some embodiments, frame  150  may include a protrusion  155  configured to be received by an aperture  183  of lens  180  so as to properly position lens  180  with respect to frame  150 . Further, when locking arm  172  is moved into the closed position, a cutout  176  of locking arm  172  may engage with a portion of protrusion  155  that extends through aperture  183  of lens  180  to secure lens  180  to frame  150 . 
     It is to be appreciated that the Detailed Description section, and not the Summary and Abstract sections, is intended to be used to interpret the claims. The Summary and Abstract sections may set forth one or more but not all exemplary embodiments of the present disclosure as contemplated by the inventor(s), and thus, are not intended to limit the present disclosure and the appended claims in any way. 
     The foregoing description of the specific embodiments will so fully reveal the general nature of the disclosure that others can, by applying knowledge within the skill of the art, readily modify and/or adapt for various applications such specific embodiments, without undue experimentation, without departing from the general concept of the present disclosure. Therefore, such adaptations and modifications are intended to be within the meaning and range of equivalents of the disclosed embodiments, based on the teaching and guidance presented herein. It is to be understood that the phraseology or terminology herein is for the purpose of description and not of limitation, such that the terminology or phraseology of the present specification is to be interpreted by the skilled artisan in light of the teachings and guidance. 
     The breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.