Abstract: Eyeglasses and a high-contrast lens are respectively provided. The lens has a characteristic transmission spectrum within a wavelength range between 380 nm and 780 nm, and the characteristic transmission spectrum has: a first transmission trough, a second transmission trough, and a third transmission trough. A wavelength position corresponding to a bottom of the first transmission trough is between 490 nm and 500 nm, and the first transmission trough has a first minimum transmission rate not greater than 30%. A wavelength position corresponding to a bottom of the second transmission trough is between 592 nm and 598 nm, and the second transmission trough has a second minimum transmission rate not greater than 30%. A wavelength position corresponding to a bottom of the third transmission trough is between 680 nm and 688 nm, and the third transmission trough has a third minimum transmission rate not less than 15%.

Abstract: A snow goggle device includes a composite lens and a spectacle frame fastened to a periphery of the composite lens. The composite lens includes a multi-layer sheet, a protective sheet spaced apart from the multi-layer sheet, and a combining layer connecting the multi-layer sheet and the protective sheet. The multi-layer sheet includes an anti-UV layer, an anti-fog layer, and a photochromic layer, the latter two of which are respectively disposed on an inner surface and an outer surface of the anti-UV layer. The photochromic layer has an adjustable transmittance that is changed when a UV light travels through the photochromic layer. The anti-UV layer can reflect a UV light to the photochromic layer. The multi-layer sheet, the protective sheet, and the combining layer jointly define an air layer that is configured to slow down the transference of an outer temperature of the protective sheet to the multi-layer sheet.

Abstract: A snow goggle device includes a composite lens and a spectacle frame fastened to a periphery of the composite lens. The composite lens includes a multi-layer sheet, a protective sheet spaced apart from the multi-layer sheet, and a combining layer connecting the multi-layer sheet and the protective sheet. The multi-layer sheet includes an anti-UV layer, an anti-fog layer, and a photochromic layer, the latter two of which are respectively disposed on an inner surface and an outer surface of the anti-UV layer. The photochromic layer has an adjustable transmittance that is changed when a UV light travels through the photochromic layer. The anti-UV layer can reflect a UV light to the photochromic layer. The multi-layer sheet, the protective sheet, and the combining layer jointly define an air layer that is configured to slow down the transference of an outer temperature of the protective sheet to the multi-layer sheet.