Continuous injection direct rolling for optical elements with microstructures. Issue 9 (August 2016)

• Record Type: Journal Article
• Authors: Wang, Haixiong; Lv, Yonghu; Lou, Yan; Li, Jibin; Cheung, C.
• Is Part Of: International journal of advanced manufacturing technology. Volume 85:Issue 9/12(2016)
• Page Start: 2247
• Page End: 2255
• Publication Date: 2016-08
• Subjects: Continuous injection direct rolling (CIDR) -- Microstructure -- Optical elements -- Polymer; Manufacturing processes -- Periodicals; Production engineering -- Periodicals; 670.427
• DOI: 10.1007/s00170-016-8499-2
• Languages: English
• ISSNs: 0268-3768

Abstract

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.