An apparatus to maintain an environment over an anterior surface of a patient eye can include an enclosure sized and shaped to be seated about the patient eye to form a cavity within the enclosure. The enclosure can be configured to contain a fluid other than ambient air in contact with the patient eye. The apparatus can include a fluid regulator in communication with the enclosure, where the fluid regulator can be configured to regulate the composition of the fluid contained within the enclosure.

A multi-thickness lens for a goggle may be disclosed in accordance with various embodiments. The multi-thickness lens may include a portion of a first thickness and a portion of a second thickness. In particular, the multi-thickness lens may be inserted into a goggle, including goggles configured to receive standard lenses. Further, the goggle may include features that may allow the multi-thickness lens to distribute forces and/or stresses to the goggle and/or may include features and/or components adapting the goggle to receive a multi-thickness lens.

A multi-thickness lens for a goggle may be disclosed in accordance with various embodiments. The multi-thickness lens may include a portion of a first thickness and a portion of a second thickness. In particular, the multi-thickness lens may be inserted into a goggle, including goggles configured to receive standard lenses. Further, the goggle may include features that may allow the multi-thickness lens to distribute forces and/or stresses to the goggle and/or may include features and/or components adapting the goggle to receive a multi-thickness lens.

A device for producing an air curtain in front of a face of a user, wherein the device includes, inter alia, a pump for supplying air to produce the air curtain and at least one nozzle for forming the air curtain.

In a swimming mask, a skirt includes a circumferential wall in an annular shape extending rearward from a lens frame, and a seal portion disposed behind the circumferential wall to be brought into contact with a face of a wearer. The skirt also includes a high stiffness annular region disposed rearward apart from the lens frame, extending in both side regions and an upper region of a mask body, and having higher stiffness than stiffness of other part of the skirt.

A face shield is formed of a sheet of flexible material bent in an arc about a user's face with ends supported by the temples of glasses worn by the user. Cut outs allow use of the face shield without interference with the glasses lenses or accessories such as eye loupes worn during

The present invention discloses a helmet with an inwards flipping type goggle, which includes a helmet body, a goggle, a front protection lens and a link mechanism; the front protection lens is fixed to the front side of the helmet body, the goggle is fixed to the link mechanism, the link mechanism is capable of adjusting the goggle to move up and down and to be rotatably connected to the two sides of the helmet body, and the goggle are located in the helmet body. The present invention has the following beneficial effects: by adopting the inwards flipping type, the goggle are prevented from being easily contaminated by welding splash, grinding splash and dust when the goggle are upwards flipped outside; the defects that the gravity center of the entire helmet moves forwards and the helmet is heavy are avoided; the goggle can be upwards flipped inside the helmet, the sight is not affected under the situation that the helmet is not taken off, and it is applicable to wider occasions, is more flexible and is more convenient to operate.

The present invention discloses a helmet with an inwards flipping type goggle, which includes a helmet body, a goggle, a front protection lens and a link mechanism; the front protection lens is fixed to the front side of the helmet body, the goggle is fixed to the link mechanism, the link mechanism is capable of adjusting the goggle to move up and down and to be rotatably connected to the two sides of the helmet body, and the goggle are located in the helmet body. The present invention has the following beneficial effects: by adopting the inwards flipping type, the goggle are prevented from being easily contaminated by welding splash, grinding splash and dust when the goggle are upwards flipped outside; the defects that the gravity center of the entire helmet moves forwards and the helmet is heavy are avoided; the goggle can be upwards flipped inside the helmet, the sight is not affected under the situation that the helmet is not taken off, and it is applicable to wider occasions, is more flexible and is more convenient to operate.

A film roll for use in a film advance system for eye protective goggles comprises a transparent film wound on the spindle. The film has an inner trailing end, a leading end, and a total film length. In use, the transparent film extends across a lens of the goggles. The transparent film presents a transparent main film part, which extends in the longitudinal direction from the trailing end to the leading end, and which presents optically uniform characteristics at least in the longitudinal direction. The transparent film is provided with at least one visual indication, which is located above the main film part and extends along an upper film edge of the transparent film, said at least one visual indication being limited to a trailing part of said total film length.

A stack of eye shields includes a plurality of eye shields each having a frame with receivers located along the frame and latches located to engage the receivers, and spaced apart elevated support surfaces along and rising above an upper portion of the frame; and a lens installed on the frame and having lens apertures extending through the lens and aligned with the receivers of the frame, with the latches engaged with the receivers securing the lens to the frame. The eye shields are stacked one on top of another with each of the eye shields oriented substantially parallel to one another with each of the elevated surfaces of an overlying one of the frames of the stack being slightly forward of a corresponding one of the elevated surfaces of the underlying frame of the stack, with each frame of each eye shield of the stack having a gap therebetween except at contact surfaces where the elevated support surfaces contact an adjacent lower surface of an overlying eye shield. The elevated support surfaces of the frames stabilize the stack of the eye shields for shipping and dispensing of the stack of the eye shields.