LENS MODULE
A lens module includes a first lens having a convex object-side surface and a convex image-side surface, a second lens having a concave object-side surface; a third lens having a meniscus shape; and a fourth lens having an inflection point formed on an image-side surface and a convex object-side sur...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A lens module includes a first lens having a convex object-side surface and a convex image-side surface, a second lens having a concave object-side surface; a third lens having a meniscus shape; and a fourth lens having an inflection point formed on an image-side surface and a convex object-side surface. A distance from an image-side surface of the third lens to the object-side surface of the fourth lens may be less than 0.05. In an embodiment, r2, a radius of curvature of an image-side surface of the first lens, and, f, an overall focal length of an optical system including the first through fourth lenses may satisfy −0.94 |
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