Solving tolerancing and three-dimensional beam shaping problems by multifunctional wave optical design

2001 ◽  
Vol 40 (8) ◽  
pp. 1590 ◽  
Author(s):  
Frank Wyrowski
Keyword(s):  
Optical Design ◽  
Three Dimensional ◽  
Beam Shaping

Optical Design of Three-Dimensional Projection on Multifocal Planes

2018 ◽  
Vol 38 (9) ◽  
pp. 0922002
Author(s):  
陈寰 Chen Huan ◽  
乔杨 Qiao Yang ◽  
徐熙平 Xu Xiping ◽  
陈贺 Chen He ◽  
周晶 Zhou Jing
Keyword(s):  
Optical Design ◽  
Three Dimensional

Optical design of three-mirror beam shaping scanner for optical coherence tomography

2018 ◽  
Vol 26 (11) ◽  
pp. 2654-2661
Author(s):  
王方雨 WANG Fang-yu ◽  
孙 强 SUN Qiang ◽  
常 颖 CHANG Ying ◽  
戴 明 DAI Ming ◽  
刘昕晖 LIU Xin-hui ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Design ◽  
Beam Shaping ◽  
Optical Coherence

High Efficiency LED Module with 3D Bending Machine

2012 ◽  
Vol 579 ◽  
pp. 10-21 ◽  
Author(s):  
Chung Yi Lin ◽  
Tung Cheng Pan ◽  
Yao Chi Peng ◽  
Jian Shian Lin ◽  
Cheng Hao Ko ◽  
...  
Keyword(s):  
Automatic Control ◽  
Intensity Distribution ◽  
High Efficiency ◽  
Light Emission ◽  
Optical Design ◽  
Three Dimensional ◽  
Control Program ◽  
High Accuracy ◽  
Luminous Intensity ◽  
Bending Angles

Abstract- In this paper, a bending machine for tuning optical design of LED module is proposed. The tuning is done by changing the bending angles of each package on a given module with the help of automatic control program. Luminous intensity distribution can be controlled by adjusting the light emission path, which in turn can be implemented as changing the bending angles of individual LED packages on the module. The proposed machine is capable of bending packages to specified angles with errors less than 0.1°. Three-dimensional light distribution for bent package LED modules is also studied based on various application scenarios so that each scenario can have diversified luminous intensity distribution resulting in higher uniformity and better luminance quality. The machine has several advantages, including quick bending, high accuracy, and great customizability. These advantages make the machine meet the requirements of automatic mold forming.

scholarly journals X-type vortex and its effect on beam shaping

2021 ◽  
Author(s):  
Xiaoyan Pang ◽  
Weiwei Xiao ◽  
Han Zhang ◽  
Chen Feng ◽  
Xinying Zhao
Keyword(s):  
Three Dimensional ◽  
Beam Shaping ◽  
Optical Fields ◽  
Intensity Pattern ◽  
Phase Gradient ◽  
Rotation Direction ◽  
3D Space ◽  
New Type ◽  
Gradient Parameter ◽  
3D Fields

Abstract In this article we propose a new type of optical vortex, the X-type vortex. This vortex inherits and develops the conventional noncanonical vortex, i.e., it no longer has a constant phase gradient around the center, while the intensity keeps invariant azimuthally. The strongly focusing properties of the Xtype vortex and its effect on the beam shaping in three-dimensional (3D) fields are analyzed. The interesting phenomena, which cannot be seen in canonical vortices, are observed, for instance the `switch effect' which shows that the intensity pattern can switch from one transverse axis to another in the focal plane by controlling the phase gradient parameter. It is shown that by adjusting the phase gradient of this vortex, the focal field can have marvelous patterns, from the doughnut shape to the shapes with different lobes, and the beam along propagation direction will form a twisting shape in 3D space with controllable rotation direction and location. The physical mechanisms underlying the rule of the beam shaping are also discussed, which generally say that the phase gradient of the X-type vortex, the orbital angular momentum, the polarization and the `nongeneric' characteristic contribute differently in shaping fields. This new type of vortex may supply a new freedom for tailoring 3D optical fields, and our work will pave a way for exploration of new vortices and their applications.

Optical design of three-dimensional digital ophthalmoscopes

2016 ◽  
Author(s):  
Yi-Chin Fang ◽  
Chih-Ta Yen ◽  
Chin-Hsien Chu
Keyword(s):  
Optical Design ◽  
Three Dimensional

scholarly journals Printing special surface components for THz 2D and 3D imaging

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Bo Yan ◽  
Zhigang Wang ◽  
Xing Zhao ◽  
Lie Lin ◽  
Xiaolei Wang ◽  
...  
Keyword(s):  
Imaging System ◽  
Incident Light ◽  
Optical Design ◽  
Bessel Beam ◽  
Three Dimensional ◽  
Focal Depth ◽  
Traditional System ◽  
Special Surface ◽  
3D Printed ◽  
Aspherical Mirrors

AbstractThe paper reports an off-axis large focal depth THz imaging system which consists of three 3D printed special surface components (two aspherical mirrors and an axicon). Firstly, the optical design software is used to design and optimize the aspherical parabolic mirror. Secondly, the optimized mirror is prepared by a 3D printing and metal cladding method. Thirdly, a THz axicon is designed for generation of quasi-Bessel Beam and a new geometric theoretical model of oblique incident light for axicon is established. Finally, the imaging system based on the special surface components is constructed. Its maximum diffraction-free distance is about 60 mm, which is 6 times higher than the traditional system. To verify the effectiveness, THz two-dimensional imaging experiments and three-dimensional computed tomography experiment are carried out. The results are consistent with the design and calculations.

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