Changxi Xue
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View article: Towards understanding the machinability improvement of high-entropy alloys via ultra-precision diamond cutting technology in a magnetic field environment
Towards understanding the machinability improvement of high-entropy alloys via ultra-precision diamond cutting technology in a magnetic field environment Open
View article: Design of broadband multilayer diffractive optical elements with multifocal imaging
Design of broadband multilayer diffractive optical elements with multifocal imaging Open
Multilayer diffractive optical elements (MLDOEs), due to their broadband optical properties, can be widely used in optical system design. However, MLDOEs only focus on one focal point, they cannot meet the requirement of broadband imaging …
View article: Variotherm assisted precision injection molding of plastic optical lenses based on improved cooling stage control model
Variotherm assisted precision injection molding of plastic optical lenses based on improved cooling stage control model Open
View article: Phase Disturbance Compensation for Quantitative Imaging in Off-Axis Digital Holographic Microscopy
Phase Disturbance Compensation for Quantitative Imaging in Off-Axis Digital Holographic Microscopy Open
Holographic detection technology has found extensive applications in biomedical imaging, surface profilometry, vibration monitoring, and defect inspection due to its unique phase detection capability. However, the accuracy of quantitative …
View article: Diffractive approach to design astigmatism-correction intraocular lenses
Diffractive approach to design astigmatism-correction intraocular lenses Open
Astigmatism-correction has gradually become a design hotspot in the field of intraocular lenses (IOLs). We proposed what we believe to be a novel diffractive method to design intraocular lenses with both astigmatism-correction at different…
View article: Deformation analysis method for precision injection molding of optical plastic lenses with a multi section approach based on warpage and shrinkage behavior
Deformation analysis method for precision injection molding of optical plastic lenses with a multi section approach based on warpage and shrinkage behavior Open
Precision injection-molded plastic optical lenses are extensively utilized in imaging optical systems. Surface deviations produced during the injection molding of plastic optical lenses will immediately result in imaging quality issues. Co…
View article: Inhibiting surface and subsurface damage in ultrasonic vibration-assisted ultraprecision diamond cutting of high-entropy alloy
Inhibiting surface and subsurface damage in ultrasonic vibration-assisted ultraprecision diamond cutting of high-entropy alloy Open
High-entropy alloys (HEAs) are a potential industrial material for large-scale applications because of their superior physical and chemical attributes. However, owing to the incomplete understanding of the manufacturing mechanism for this …
View article: Thermodynamic coupling analysis of precision molding process for chalcogenide glass microlens array under multiple loads
Thermodynamic coupling analysis of precision molding process for chalcogenide glass microlens array under multiple loads Open
Precision glass molding (PGM) technology, as an efficient and straightforward method for producing glass lenses, has been widely applied in the mass production of aspheric glass lenses. However, molding complex surfaces such as free-form a…
View article: Prediction of residual stress in precision injection molding of plastic optical lenses based on an improved solidification layer model
Prediction of residual stress in precision injection molding of plastic optical lenses based on an improved solidification layer model Open
Precision injection molding technology (PIM) is the primary technique used for large scale manufacture of plastic optical lenses. However, the injection molding of plastic optical lenses results in a problem of residual stress, which affec…
View article: Precision glass molding technology for XY polynomial freeform optical elements with simulations and experiments
Precision glass molding technology for XY polynomial freeform optical elements with simulations and experiments Open
Precision glass molding (PGM) technology, as an effective method for mass-producing glass lenses, is relatively mature in the molding process of aspheric lenses, but the glass molding technology for freeform optical elements is still in it…
View article: Design of Freeform Illumination Optics for High-Resolution Automotive Headlamps
Design of Freeform Illumination Optics for High-Resolution Automotive Headlamps Open
View article: Analysis on the instability of the surface profiles of precision molding chalcogenide glass aspherical lenses in mass production
Analysis on the instability of the surface profiles of precision molding chalcogenide glass aspherical lenses in mass production Open
Chalcogenide glass lenses have been widely applied in infrared optical systems for their outstanding optical performance. It is a tendency for complex optical glass elements to be mass-produced with precision glass molding (PGM) technology…
View article: High-precision turning and ultra-smooth direct polishing of aluminum alloy mirrors
High-precision turning and ultra-smooth direct polishing of aluminum alloy mirrors Open
Due to the high surface roughness requirements of aluminum alloy mirrors used in the visible light band, there are still great challenges in single point diamond turning of high-surface quality aluminum alloy mirrors. In this paper, a proc…
View article: Design of adjustable multifocal diffractive optical elements with an improved smooth phase profile by continuous variable curve with multi-subperiods method
Design of adjustable multifocal diffractive optical elements with an improved smooth phase profile by continuous variable curve with multi-subperiods method Open
Multifocal diffractive optical elements (MDOEs), which produce arbitrary light distribution, are widely used in lightweight and compact optical systems. MDOEs that are combined with multiple functions tend to have complex step structures, …
View article: Deformation Analysis of the Glass Preform in the Progress of Precision Glass Molding for Fabricating Chalcogenide Glass Diffractive Optics with the Finite Element Method
Deformation Analysis of the Glass Preform in the Progress of Precision Glass Molding for Fabricating Chalcogenide Glass Diffractive Optics with the Finite Element Method Open
Precision glass molding (PGM) technology is a cost-efficient process for the production of micro/nanostructured glass components with complex surface geometries. The stress distribution, surface profile, and reduced refractive index of the…
View article: Ductile-brittle coupled cutting of a single-crystal silicon by ultrasonic assisted diamond turning
Ductile-brittle coupled cutting of a single-crystal silicon by ultrasonic assisted diamond turning Open
Ultrasonic assisted diamond turning (UADT) is a significant machining technology for the fabrication of a crack-free surface on single-crystal silicon. However, due to insufficient understanding of intermittent cutting characteristic, most…
View article: Fabrication of high-precision freeform surface on die steel by ultrasonic-assisted slow tool servo
Fabrication of high-precision freeform surface on die steel by ultrasonic-assisted slow tool servo Open
The mold core fabrication of a freeform surface on die steel by ultra-precision machining can make the optical elements of freeform be mass-produced by plastic injection and glass mold pressing. However, because steel is a typical difficul…
View article: Research on on-line correction technology of ruled grating curved error
Research on on-line correction technology of ruled grating curved error Open
刻划光栅存在刻线弯曲误差，将直接影响光栅的衍射波前质量。通过构建光栅刻线弯曲误差与衍射波前的映射关系，搭建了光栅刻线弯曲误差的实时测量光路，论述了光栅刻划机主动控制技术原理，将光栅刻划机主动控制技术用于光栅刻线弯曲误差的在线补偿。通过对比光栅刻划实验验证该方法的可行性。上述方法能够准确提取并有效补偿光栅刻线弯曲误差，将光栅衍射波前由0.074 λ提高到0.038 λ，提高了48.6%，同时有效地解决了光栅表面弯曲问题。其研究结果可用于提高机械刻划光栅质量，具有重要的理论及应…