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.