Short-focus projection lens and projection imaging system

The utility model discloses a short-focus projection lens and a projection imaging system, and the short-focus projection lens comprises a lens assembly which comprises a plurality of spherical lenseswhich are arranged in the same optical axis, and is used for the projection imaging of an externally...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHI HONGYI, LI QINGQING, HU XUELEI, LI PENGJIE, ZHANG ZHENGANG
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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