Imaging lens system
An imaging lens system is provided. The imaging lens system includes a first lens having refractive power, a second lens having refractive power, a third lens having a convex object-side surface, a fourth lens having refractive power, a fifth lens having refractive power, and a sixth lens having ref...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | An imaging lens system is provided. The imaging lens system includes a first lens having refractive power, a second lens having refractive power, a third lens having a convex object-side surface, a fourth lens having refractive power, a fifth lens having refractive power, and a sixth lens having refractive power. The first lens to the sixth lens are sequentially arranged from an object side toward an imaging plane. The imaging lens system satisfies the conditional expressions TTL/f < 1.0 and 0.9 < f1/f4 < 1.4, where TTL is a distance from an object-side surface of the first lens to the imaging plane, f is a focal length of the imaging lens system, f1 is a focal length of the first lens, and f4 is a focal length of the fourth lens. |
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