Optics and Precision Engineering, Volume. 18, Issue 1, 183(2010)
Design of helical sweep system for volumetric three dimensional imaging
A sweep system with a double-helical screen whose rotation is driven by a motor is established to produce a steady and unique imaging space to realize real-time and high-resolution volumetric three-dimensional imaging. The imaging characteristics of projection spaces created by swept volume and static volume techniques are compared and analyzed,and the processing schemes of screen structure are designed. Using high strength photosensitive translucent resin materials and a supporting wall structure,the system is manufactured by rapid prototyping and directly digital manufacturing. Furthermore, the three dimensional model of helical sweep screen is established by Solidworks software and the dynamic testing is analyzed by the COSMOSWorks module. The simulation results show that the maximum displacement of screen rotating is 0.013 mm at 600 r/min,which is far less than the visual resolution range of realistic image synthesis, so the projection space based on the helical sweep screen can match imaging requirements. Finally,a system platform is built on the basis of the existing engineering and technological level. Experimental results indicate that the platform can produce a steady projection space (25 cm×Ф50 cm), and can supply excellent volumetric three-dimensional images.
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FAN Qiong-jian, LI Li, SHEN Chun-lin, GONG Hua-jun. Design of helical sweep system for volumetric three dimensional imaging[J]. Optics and Precision Engineering, 2010, 18(1): 183
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Received: Mar. 10, 2009
Accepted: --
Published Online: Aug. 31, 2010
The Author Email: Qiong-jian FAN (fanqiongjian@yahoo.com.cn)
CSTR:32186.14.