Freeform surface design method combined with surface and field-of-view optimization

2018 ◽  
Vol 47 (10) ◽  
pp. 1018001
Author(s):  
姚艳霞 Yao Yanxia ◽  
袁 群 Yuan Qun ◽  
陈 露 Chen Lu ◽  
窦沂蒙 Dou Yimeng ◽  
殷慧敏 Yin Huimin ◽  
...  
Keyword(s):  
Design Method ◽  
Field Of View ◽  
Freeform Surface ◽  
Surface Design

Soft Twisting Pneumatic Actuators Enabled by Freeform Surface Design

2021 ◽  
pp. 1-1
Author(s):  
Feifei Chen ◽  
Yunpeng Miao ◽  
Guoying Gu ◽  
Xiangyang Zhu
Keyword(s):  
Freeform Surface ◽  
Surface Design ◽  
Pneumatic Actuators

scholarly journals Asymmetric Double Freeform Surface Lens for Integrated LED Automobile Headlamp

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 663
Author(s):  
Hui Zhang ◽  
Dengfei Liu ◽  
Yinwan Wei ◽  
Hong Wang
Keyword(s):  
Optical System ◽  
Design Method ◽  
Chromatic Dispersion ◽  
Electronic Devices ◽  
Color Temperature ◽  
Freeform Surface ◽  
United Nations Economic Commission ◽  
System A ◽  
Economic Commission ◽  
Key Points

We propose a design method of asymmetric double freeform surface lens for an integrated LED automobile headlamp and develop an integrated LED automobile optical system. A single asymmetric double freeform surface lens is designed to redistribute rays emitting from the light source for realizing both low and high beams. Moreover, a freeform surface reflector is used to improve the energy efficiency of high beams. The prism placed in the optical path can suppress chromatic dispersion on the edge of the target plane. Simulation and experimental results show that the illumination values and color temperature of the key points can fully meet the requirements of United Nations Economic Commission for Europe vehicle regulations (ECE) R112, 48, and 128. The volume of the whole optical system comprised of freeform surface elements is smaller than that of the low beam system of a traditional headlamp, resulting in saved space, in which other electronic devices can be installed for the safety of the driver, which indicates that the proposed method is practical in the field of automobile lighting.

SIMULTANEOUS MULTIPLE SURFACE DESIGN METHOD

2005 ◽  
pp. 181-218 ◽  
Author(s):  
Roland Winston ◽  
Juan C. Miñano ◽  
Pablo Benítez
Keyword(s):  
Design Method ◽  
Surface Design

Optical System Design with High Resolution and Large Field of View for the Remote Sensor

2007 ◽  
Vol 364-366 ◽  
pp. 550-554
Author(s):  
Jun Chang ◽  
Zhi Cheng Weng ◽  
Yong Tian Wang ◽  
De Wen Cheng ◽  
Hui Lin Jiang
Keyword(s):  
High Resolution ◽  
Optical System ◽  
Design Method ◽  
Field Of View ◽  
Large Field ◽  
Wide Field ◽  
Remote Sensor ◽  
Wide Field Of View ◽  
Technological Developments ◽  
Technological Opportunities

In this paper, we are presenting a design method and its results for a space optical system with high resolution and wide field of view. This optical system can be used both in infrared and visible configurations. The designing of this system is based on an on-axis three-mirror anastigmatic (TMA) system. Here the on-axis concept allows wide field of view (FOV) enabling a diversity of designs available for the Multi-Object Spectrometer instruments optimized for low scattered and low emissive light. The available FOVs are upto 1º in both spectrum ranges, whereas the available aperture range is F/15 - F/10. The final optical system is a three-mirror telescope with two on-axis and one off-axis segment and its resolution is 0.3m or even lower. The distinguished feature of this design is that it maintains diffraction-limited image at wide wavelengths. The technological developments in the field of computer generated shaping of large-sized optical surface details with diffraction-limited imagery have opened new avenues towards the designing techniques. Such techniques permit us to expand these technological opportunities to fabricate the aspherical off-axis mirrors for a complex configuration.

Improving spectrometer field of view correction with a freeform surface

2016 ◽  
Author(s):  
S. Wickenhagen ◽  
P. Petruck ◽  
U. Fuchs
Keyword(s):  
Field Of View ◽  
Freeform Surface

scholarly journals A mathematical model of the single freeform surface design for collimated beam shaping

2013 ◽  
Vol 21 (18) ◽  
pp. 20974 ◽  
Author(s):  
Rengmao Wu ◽  
Peng Liu ◽  
Yaqin Zhang ◽  
Zhenrong Zheng ◽  
Haifeng Li ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Beam Shaping ◽  
Freeform Surface ◽  
Surface Design ◽  
Collimated Beam

scholarly journals Production of protein powder from salted duck eggs white

2019 ◽  
Vol 02 ◽  
pp. 119-130
Author(s):  
Trinh A. Nguyen
Keyword(s):  
Design Method ◽  
Egg White ◽  
Regression Equation ◽  
Process Conditions ◽  
Drying Time ◽  
Process Yield ◽  
Surface Design ◽  
Duck Egg ◽  
Salted Duck Eggs

The objective of the research was to determine process conditions to produce protein powder from salted duck egg whites based on the two main steps including precipitation of the protein from egg white and drying the protein. Optimization for process parameters of protein's precipitation and drying were carried out by Response Surface Design method with the results obtained from the experiment. Basing on the determination of the limits of studied factors, defining the regression and choosing the optimal parameters for precipitation and drying processes. The result of optimal protein precipitation was the ratio of water/salted duck egg white: 3.5/1, the temperature of 80oC and precipitation time of 60 minutes with the process yield was 9.63% and the salt separation was 19.61%. The result of optimal drying process was the drying temperature at 75oC, material density: 0.35 g/cm2 (wind speed of 0.64 m/s and drying time of 4 h) with the product solubility of 11.05%, the water content of 8.19% and aw of 0,476. Verifying the defined regression equation and experiment showed the different level is less than 5%, the defined regression equation is valid and has the potential to apply in production.

Sign in / Sign up

Export Citation Format

Share Document