Lens

The invention discloses a lens. The lens comprises a first positive-focal-power group, a first negative-focal-power group, a second positive-focal-power group and a third positive-focal-power group; the first positive-focal-power group comprises a bonding lens body composed of a first concave lens b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIU KAI, LIN FAGUAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a lens. The lens comprises a first positive-focal-power group, a first negative-focal-power group, a second positive-focal-power group and a third positive-focal-power group; the first positive-focal-power group comprises a bonding lens body composed of a first concave lens body and a first convex lens body and a second convex lens body, wherein the bonding lens body and the second convex lens body are sequentially arranged from left to right; the first negative-focal-power group comprises a second concave lens body, a third concave lens body and a third convex lens body which are sequentially arranged from left to right; the second positive-focal-power group comprises a fourth convex lens body, a bonding lens body composed of a fourth concave lens body and a fifthconvex lens body and a bonding lens body composed of a sixth convex lens body and a fifth concave lens body, wherein the fourth convex lens body, the bonding lens body and the bonding lens body are sequentially arranged from