Camera lens

The invention discloses a pick-up lens, the pick-up lens comprises an optical lens group, a plurality of spacers and a lens barrel used for accommodating the optical lens group and the plurality of spacers, the optical lens group sequentially comprises a first lens, a second lens, a third lens, a fo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WENREN JIANKE, JUNG KI-YEOP, DAI FUJIAN, YANG SHIYONG, ZHAO LIEFENG, FANG RONGBO
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a pick-up lens, the pick-up lens comprises an optical lens group, a plurality of spacers and a lens barrel used for accommodating the optical lens group and the plurality of spacers, the optical lens group sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side along an optical axis, and the first lens, the second lens, the third lens, the fourth lens and the fifth lens respectively have focal power. The first lens has positive focal power; the second lens has a meniscus shape; the fourth lens has positive focal power; the fifth lens has positive focal power and a meniscus shape, the second lens and the fifth lens have opposite convex directions of the meniscus shape, the plurality of spacers include at least one spacer located between any two adjacent lenses, the at least one spacer being in contact with at least a portion of the adjacent lens; the distance TD from the object side surface of the first lens t