3D PRINTER AND LENS MODULE USED BY SAME

WIPO Patent Application WO/2016/086376

A1

A lens module (50) and a 3D printer (100) comprising same. The lens module comprises a first lens (L1), a second lens (L2) and a third lens (L3) sequentially and coaxially arranged in the transmission direction of incident light. The first lens, the second lens and the third lens are all meniscus lenses. The first lens comprises a first curved surface (S1) and a second curved surface (S2). The second lens comprises a third curved surface (S3) and a fourth curved surface (S4). The third lens comprises a fifth curved surface (S5) and a sixth curved surface (S6). The first to the sixth curved surfaces are sequentially arranged in the transmission direction of the incident light, and the curvature radii of the first to the sixth curved surfaces are sequentially -200±5%, -100±5%, -80±5%, -150±5%, -100±5% and -70±5% in a unit of millimeter. By means of the lens module, the printing efficiency of the 3D printer is high and it is convenient to carry out printing of ultra-large workpieces.

LI JIAYING (CN)
ZHOU CHAOMING (CN)
SUN BO (CN)
GAO YUNFENG (CN)

PCT/CN2014/092961

June 09, 2016

December 03, 2014

Click for automatic bibliography generation  

HANS LASER TECHNOLOGY IND GROUP CO LTD (CN)

B29C67/00; G02B11/06

CN104029394A	2014-09-10
US20110310493A1	2011-12-22
CN201235608Y	2009-05-13
CN203622599U	2014-06-04
US20050057736A1	2005-03-17
KR20040102531A	2004-12-08
CN103341625A	2013-10-09

ADVANCE CHINA IP LAW OFFICE (CN)
广州华进联合专利商标代理有限公司 (CN)

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