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Title: Continuous injection direct rolling for optical elements with microstructures
Authors: Wang, H
Lv, Y
Lou, Y
Li, J
Cheung, CF 
Keywords: Continuous injection direct rolling (CIDR)
Optical elements
Issue Date: 2016
Publisher: Springer
Source: International journal of advanced manufacturing technology, 2016, v. 85, no. 42713, p. 2247-2255 How to cite?
Journal: International journal of advanced manufacturing technology 
Abstract: Continuous injection direct rolling (CIDR) is a new technology used to form optical elements with microstructures. The best process parameters obtained in CIDR are a screw rotational velocity of 160 rpm, an injection temperature of 280 °C, an injection pressure of 12 MPa, a roller rotational velocity of 0.6 rpm, and a roller temperature of 85 °C. Polymer plates with different depth microstructures and a light guide plate (LGP) are produced by CIDR technology. Test results show that the minimum thickness of the plate is 0.621 mm; the roller velocity, roller temperature, and injection pressures all affect the copying of the microstructure; those microstructures on the plate surface were of uniform depth; replication error can be controlled to within 2 %. The LGP obtained from these experiments has good light uniformity, which proved that the technology is feasible for the production of optical elements with microstructure.
ISSN: 0268-3768
EISSN: 1433-3015
DOI: 10.1007/s00170-016-8499-2
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