Design method of infrared microscope optical system with lower aberration compensation

2021 ◽  
Vol 50 (2) ◽  
pp. 20200153-20200153
Author(s):  
刘智颖 Zhiying Liu ◽  
吕知洋 Zhiyang Lv ◽  
高柳絮 Liuxu Gao
2021 ◽  
Vol 50 (2) ◽  
pp. 20200153-20200153
Author(s):  
刘智颖 Zhiying Liu ◽  
吕知洋 Zhiyang Lv ◽  
高柳絮 Liuxu Gao

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 663
Author(s):  
Hui Zhang ◽  
Dengfei Liu ◽  
Yinwan Wei ◽  
Hong Wang

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.


2007 ◽  
Vol 364-366 ◽  
pp. 550-554
Author(s):  
Jun Chang ◽  
Zhi Cheng Weng ◽  
Yong Tian Wang ◽  
De Wen Cheng ◽  
Hui Lin Jiang

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.


Author(s):  
Shang Wang ◽  
Fei Chen ◽  
Kai Wang ◽  
Quan Chen ◽  
Zhili Zhao ◽  
...  

2013 ◽  
Vol 32 (3) ◽  
pp. 259 ◽  
Author(s):  
Chao WANG ◽  
Xin ZHANG ◽  
Ling-Jie WANG ◽  
He-Meng QU ◽  
Chao WANG

2012 ◽  
Vol 32 (3) ◽  
pp. 0322007 ◽  
Author(s):  
刘健鹏 Liu Jianpeng ◽  
唐义 Tang Yi ◽  
黄刚 Huang Gang ◽  
张止戈 Zhang Zhige ◽  
倪国强 Ni Guoqiang

2014 ◽  
Vol 34 (9) ◽  
pp. 0911003 ◽  
Author(s):  
杨增鹏 Yang Zengpeng ◽  
唐玉国 Tang Yuguo ◽  
巴音贺希格 Bayanheshig ◽  
潘明忠 Pan Mingzhong ◽  
崔继承 Cui Jicheng ◽  
...  

2021 ◽  
Vol 29 (1) ◽  
pp. 72-83
Author(s):  
Qing-yu MENG ◽  
◽  
Hong-yuan WANG ◽  
Wei WANG ◽  
Zi-chang QIN ◽  
...  

2005 ◽  
Vol 02 (04) ◽  
pp. 279-289 ◽  
Author(s):  
JUN GAO ◽  
XIAOJIA WANG ◽  
JOHANNES ECKSTEIN ◽  
PETER OTT

For a growing range of optical measurement task, like gap measurement in automotive industry, traditional triangulation sensors have several disadvantages due to the fact that the measurement result is dependent on the orientation of the sensor because of the non-rotational symmetry of the optics. Consequently a design method was proposed recently for a new class of rotationally symmetric triangulation sensors. Such designs can be realized with aspheric reflection optics and area detectors, such as CCD or CMOS. The optics of the sensor can be extended by an imaging optics which allows at the same time image capturing and distance measurement. In this paper we show the first prototype. This system is based on an optical system of one part manufactured by commercially available diamond turning. The layout of the optical system for distance measurement consists of two reflecting aspheric surfaces. The high precision algorithm for ring location was needed because the performance of the sensor is based on the detection of ring, especially the radius of the ring. In this paper, we try to give the different evaluation function for high precision location of ring. Then we used various methods to solve it and got optimized result. The comparison of algorithms for simulation was listed in the paper. And the measurement result for the real image got by the prototype was also presented. It seems the algorithm meets the precision demand of the sensor.


2014 ◽  
Vol 22 (S6) ◽  
pp. A1491 ◽  
Author(s):  
Xianglong Mao ◽  
Hongtao Li ◽  
Yanjun Han ◽  
Yi Luo

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