Optical lens

The invention discloses an optical lens, which sequentially comprises a diaphragm, a first lens, a second lens and a third lens from an object side to an imaging surface along an optical axis, the object side surface of the first lens is a convex surface, and the image side surface of the first lens...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XIE YUCHEN, ZHUANG LINFAN, ZHANG BINWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	The invention discloses an optical lens, which sequentially comprises a diaphragm, a first lens, a second lens and a third lens from an object side to an imaging surface along an optical axis, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the object side surface of the third lens near the optical axis is a convex surface, and the image side surface of the third lens is a convex surface; the fourth lens has negative focal power, and the object side surface of the fourth lens is a concave surface; the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lens is a convex surface; the sixth lens has positive focal power, the object side surface of the sixth lens near the optical axis is a convex surface, and the image side surface of the sixth lens is a c