OPTICAL IMAGING LENS
An optical imaging lens includes an aperture and a first to a fifth lenses in order from an object side to an image side. The first lens is made of glass, and is a positive meniscus lens, of which the convex surface faces the object side. The second lens is a negative meniscus lens, of which the con...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An optical imaging lens includes an aperture and a first to a fifth lenses in order from an object side to an image side. The first lens is made of glass, and is a positive meniscus lens, of which the convex surface faces the object side. The second lens is a negative meniscus lens, of which the convex surface faces the object side. The third lens is a positive meniscus lens, of which the convex surface faces the image side. The fourth lens is made of glass, which is a positive meniscus lens with a refractive index no less than 1.7, wherein the convex surface thereof faces the image side. A diopter of the fifth lens turns from negative to positive from a center to a margin thereon. |
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