Lens for digital camera
AssigneeGenius Electronic Optical (Xiamen) Co., Ltd.
InventorTien-Ching Chen
Life of this patent
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Abstract
A lens assembly, which is mounted on a digital still camera (DSC), comprises a fixed aperture, and a lens unit. The lens unit has a first lens, a second lens, a third lens, a fourth lens and a fifth lens in sequence. The first lens is a negative meniscus lens disposed at the front side of the lens unit. The second lens is a biconvex lens. The third lens is a biconcave lens. The fourth lens is a positive meniscus lens. The fifth lens is a positive lens having a surface, which has a larger curvature radius, facing the image side. The aperture is arranged between the second lens and the third lens.
Claims3
A lens assembly, comprising an aperture, and a lens unit having a first lens, a second lens, a third lens, a fourth lens and a fifth lens in sequence, said first lens being a negative meniscus lens disposed at said front side of said lens unit, said second lens being a biconvex lens, said third lens being a biconcave lens, said fourth lens being a positive meniscus lens and said fifth lens being a positive lens having a surface, which has a larger curvature radius, facing said image side, said aperture arranged between said second lens and said third lens.
Dependencies are inferred from the claim text.