An eyesight training device for cognition correction which includes a display unit; a user input unit; and a controller for controlling the display unit to overlap a recognition restraining image, which restrains a visual recognition of a recognition image, with the recognition image and to gradually change a concentration value of the recognition restraining image, and for storing, as recognition level information, information corresponding to a concentration value of the recognition restraining image as of a time when a visibility change confirmation input is input through the user input unit of the visibility change confirmation input is input.

A combination air filter and goggles includes a pair of goggles; an air filter; a tube having a first end attached to the goggles and a second end attached to the air filter; a first strap having two ends attached to the air filter; and a check valve disposed on the goggles. The air filter includes a centrifugal fan, a circuit board, a UV lamp, a filter element, a power supply, a housing, and a cover. Clean air produced by the air filter may flow to inside of the goggles.

A method for preparing a pair of personalized three-dimensional (3D) printing medical isolation goggles includes the steps of S1: establishing a medical isolation goggles matrix; S2: acquiring the facial data of a user; S3: establishing a personalized medical isolation goggles model; S4: performing additive manufacturing, wherein a pair of medical isolation goggles is provided with high personalized fitness and high breathability for patients with eye diseases such as conjunctivitis, virus-susceptible patients, front-line clinical medical workers and related workers, and the compression damage to the face caused by the wearing of the medical isolation goggles for a long time is reduced in terms of fitness and comfort, where the medical isolation goggles are manufactured in a mode of additive manufacturing, small-batch rapid production can be performed after data merging, and a large number of processes and costs are reduced in the production cycle.

A method for preparing a pair of personalized three-dimensional (3D) printing medical isolation goggles includes the steps of S1: establishing a medical isolation goggles matrix; S2: acquiring the facial data of a user; S3: establishing a personalized medical isolation goggles model; S4: performing additive manufacturing, wherein a pair of medical isolation goggles is provided with high personalized fitness and high breathability for patients with eye diseases such as conjunctivitis, virus-susceptible patients, front-line clinical medical workers and related workers, and the compression damage to the face caused by the wearing of the medical isolation goggles for a long time is reduced in terms of fitness and comfort, where the medical isolation goggles are manufactured in a mode of additive manufacturing, small-batch rapid production can be performed after data merging, and a large number of processes and costs are reduced in the production cycle.

A face mask is provided. A face mask comprising a decorative skin, having a strap attached to an outer perimeter of the decorative skin, a respirator attached to a connection piece and utilizes a filter, the connection piece being attached to the decorative skin, a speaker and a microphone mounted to an interior of the face mask, an electronic transceiver module attached to the face mask and a power source attached to the face mask. The strap secures the face mask to a head of the user, the filter is connected to the respirator such that an air-tight seal is formed. The power source powers the speaker, the microphone, and the electronic transceiver module. The electronic transceiver module comprises a processor coupled to a computer memory and non-transitory computer readable media, the processor configured to transmit and receive signals from the electronic transceiver module and the speaker or microphone.

Sleep-aiding eyewear that prevents light which inhibits melatonin production from reaching the eye is described. The eyewear that is the object of the present disclosure has improved visibility over other methods of cutting off melatonin-inhibiting wavelengths of light, which enables the user to perform tasks, such as reading and typing, uninhibited. This is achieved in some embodiments using a Bragg grating comprising multiple layers of alternating reflective index material as a surface coating on the lens. This may be combined with lens-tinting, or antireflective coatings, in the eyewear. Furthermore, transition lenses which block melatonin-shifting light when there is a suitable external stimulus, such as blue light from a light emitting diode, are described. The presently described filters are also useful for electronic displays and functional light-transmitting materials.

Goggles include a goggle frame, a goggle strap, and a goggle strap connector. The goggle strap has a direction of strap tension when the goggles are worn by a user. The goggle strap connector includes a female bracket and a male bracket. The female bracket is directly coupled to the goggle frame or the goggle strap, including first and second bracket walls, a channel defined between the bracket walls, projections, and recesses. The male bracket is configured to mateably couple to the female bracket, including a sliding bar and an enlarged bar end. First movement of the goggle strap in the strap tension direction may move at least one of the bar bumps of the enlarged bar end past at least one of the projections to position the at least one of the bar bumps within at least one of the recesses.

A goggle for use in snowsports comprises a body (14) and a detachable lens assembly (12), magnets or magnetic elements being provided on the lens assembly (12) and magnets or magnetic elements being provided in corresponding positions on the body (14), for detachably holding the lens assembly (12) to the body (14), at least one tongue (34) extending from the rear surface (36) of the lens assembly (12) on each lateral side (18, 54) of the lens assembly (12), each tongue (34) extending in a direction substantially behind the lens assembly (12), into the body (14) when the lens assembly (12) is fitted to the body (14), and an aperture (42, 66) extending through each tongue (34), and at least one moveable clip (72) being provided on each lateral side (18, 54) of the body (14), each clip (72) being movable between a released position and an engaged position, each clip (72) including a retaining finger (82) which in the engaged position passes into the aperture (42, 66) in the tongue (34), preventing detachment of the lens assembly (12) from the frame and in the released position moves clear of the tongue (34), allowing detachment of the lens assembly (12).

A pair of electric goggles is disclosed. The goggles include a conductive lens mounted onto a frame adapted to be electrically connected to an electric socket in order to raise the temperature of the lens, when powered. The goggles are provided with a strap for attaching to a helmet, the strap has a strap clip designed to have the electric socket attached thereto. The electric socket is meant to be electrically connected to a power supply via a power cable. With the combination of a strain relief clip located below the electric socket, the power cable can be positioned in a predetermined configuration, which unencumbers the user from the power cable when detaching or removing the goggles.

A pair of electric goggles is disclosed. The goggles include a conductive lens mounted onto a frame adapted to be electrically connected to an electric socket in order to raise the temperature of the lens, when powered. The goggles are provided with a strap for attaching to a helmet, the strap has a strap clip designed to have the electric socket attached thereto. The electric socket is meant to be electrically connected to a power supply via a power cable. With the combination of a strain relief clip located below the electric socket, the power cable can be positioned in a predetermined configuration, which unencumbers the user from the power cable when detaching or removing the goggles.