Abstract: An electronic device includes a transparent element, an optical component and an anti-reflecting layer. The transparent element is configured to separate an inner side and an outer side of the electronic device, so that a light passes through the transparent element to enter or leave the electronic device, and the transparent element includes an inner side surface and an outer side surface. The inner side surface faces towards the inner side, and the outer side surface faces towards the outer side. The optical component is corresponding to the inner side surface of the transparent element. The anti-reflecting layer is disposed on at least one portion of the inner side surface of the transparent element.

Abstract: An optical lens assembly includes, from an object side to an image side, at least four optical lens elements. At least one of the at least four optical lens elements includes an anti-reflective coating. The at least one optical lens element including the anti-reflective coating is made of a plastic material. The anti-reflective coating is arranged on an object-side surface or an image-side surface of the at least one optical lens element including the anti-reflective coating. The anti-reflective coating includes at least one coating layer. One of the at least one coating layer at the outer of the anti-reflective coating is made of ceramics. The anti-reflective coating includes a plurality of holes, and sizes of the plurality of holes adjacent to the outer of the anti-reflective coating are larger than sizes of the plurality of holes adjacent to the inner of the anti-reflective coating.

Abstract: An optical lens assembly includes, from an object side to an image side, at least four optical lens elements. At least one of the at least four optical lens elements includes an anti-reflective coating. The at least one optical lens element including the anti-reflective coating is made of a plastic material. The anti-reflective coating is arranged on an object-side surface or an image-side surface of the at least one optical lens element including the anti-reflective coating. The anti-reflective coating includes at least one coating layer. One of the at least one coating layer at the outer of the anti-reflective coating is made of ceramics. The anti-reflective coating includes a plurality of holes, and sizes of the plurality of holes adjacent to the outer of the anti-reflective coating are larger than sizes of the plurality of holes adjacent to the inner of the anti-reflective coating.