Abstract: Disclosed herein is a lens for a wearable projection system. The lens includes a lens blank and a holographic optical element. The holographic optical element can be removably attached to the lens. The holographic optical element is aligned to a position on the lens surface based on temporary alignment marks projected onto the lens.

Abstract: Disclosed herein is a lens for a wearable projection system. The lens includes a lens blank and a holographic optical element. The holographic optical element can be removably attached to the lens. The holographic optical element is aligned to a position on the lens surface based on temporary alignment marks projected onto the lens.

Abstract: An eyeglass is provided that can comprise a frame, a lens, and at least one retention component that can secure the lens relative to the frame. The frame can be configured to support at least one lens in a field of view of a wearer. The frame can include a first ear stem and a second ear stem that allows the frame to be worn on the wearer's head. The at least one retention component can be supported by the frame and/or the lens and can be movable or fixed relative to the frame and/or the lens. The retention component can engage an engagement portion of the frame and/or the lens for preventing the lens from separating from the frame in response to a ballistic event.

Abstract: An eyeglass is provided that can comprise a frame, a lens, and at least one retention component that can secure the lens relative to the frame. The frame can be configured to support at least one lens in a field of view of a wearer. The frame can include a first ear stem and a second ear stem that allows the frame to be worn on the wearer's head. The at least one retention component can be supported by the frame and/or the lens and can be movable or fixed relative to the frame and/or the lens. The retention component can engage an engagement portion of the frame and/or the lens for preventing the lens from separating from the frame in response to a ballistic event.

Abstract: An eyeglass is provided that can comprise a frame, a lens, and at least one retention component that can secure the lens relative to the frame. The frame can be configured to support at least one lens in a field of view of a wearer. The frame can include a first ear stem and a second ear stem that allows the frame to be worn on the wearer's head. The at least one retention component can be supported by the frame and/or the lens and can be movable or fixed relative to the frame and/or the lens. The retention component can engage an engagement portion of the frame and/or the lens for preventing the lens from separating from the frame in response to a ballistic event.

Abstract: An injection molding apparatus and method of use are provided whereby a net-molded optical article can be produced. Edge wave deviations are reduced by controlling the cooling profile of the resin. The apparatus can be configured to include at least one heat control element disposed adjacent to an edge of the mold cavity. After plasticized resin has been injected into the mold cavity, the edge of the mold cavity can be thermally regulated relative to the center of the cavity.

Abstract: An eyeglass is provided that can comprise a frame, a lens, and at least one retention component that can secure the lens relative to the frame. The frame can be configured to support at least one lens in a field of view of a wearer. The frame can include a first ear stem and a second ear stem that allows the frame to be worn on the wearer's head. The at least one retention component can be supported by the frame and/or the lens and can be movable or fixed relative to the frame and/or the lens. The retention component can engage an engagement portion of the frame and/or the lens for preventing the lens from separating from the frame in response to a ballistic event.

Abstract: An injection molding apparatus and method of use are provided whereby a net-molded optical article can be produced. Edge wave deviations are reduced by controlling the cooling profile of the resin. The apparatus can be configured to include at least one heat control element disposed adjacent to an edge of the mold cavity. After plasticized resin has been injected into the mold cavity, the edge of the mold cavity can be thermally regulated relative to the center of the cavity.