Optical design method of three-mirror anastigmatic (TMA) telescopes with curved image surface for astronomy applications

2020 ◽  
Author(s):  
Hongcai Ma ◽  
Guohao Ju ◽  
Xiaoquan Bai
Keyword(s):  
Design Method ◽  
Optical Design

Optical Design Method of a Spectrometer for Spectral Domain Optical Coherence Tomography

2018 ◽  
Vol 68 (5) ◽  
pp. 570-577
Author(s):  
Seung Seok LEE ◽  
Da Wum KWON ◽  
Eun Seo CHOI* ◽  
Woosub SONG
Keyword(s):  
Optical Coherence Tomography ◽  
Design Method ◽  
Optical Design ◽  
Spectral Domain ◽  
Optical Coherence

A New Optical Design Method of Uniform Illumination Based on Extended LED Source

2014 ◽  
Vol 51 (2) ◽  
pp. 022203
Author(s):  
徐超 Xu Chao ◽  
高淑梅 Gao Shumei ◽  
苏宙平 Su Zhouping ◽  
钱维莹 Qian Weiying ◽  
刘诚 Liu Cheng
Keyword(s):  
Design Method ◽  
Optical Design ◽  
Uniform Illumination

Optical design method of freeform lens for a high-power extended LED source

2012 ◽  
Author(s):  
Hong Wang ◽  
Naifeng Du ◽  
Yuefeng Wu ◽  
Huamao Huang
Keyword(s):  
High Power ◽  
Design Method ◽  
Optical Design ◽  
Freeform Lens

Study on optical design method for LED extended sources

2010 ◽  
Author(s):  
Hong Wang ◽  
Haihong Wang ◽  
Naifeng Du ◽  
Xiaofan Zhang
Keyword(s):  
Design Method ◽  
Optical Design ◽  
Extended Sources

Optical design method for controlling laser beam profiles

1994 ◽  
Author(s):  
Burton D. O'Neil ◽  
Vance A. Hedin ◽  
Carol E. Hines
Keyword(s):  
Laser Beam ◽  
Design Method ◽  
Optical Design

Optical design of LED high mast lamp based on TIR freeform lens for annular lighting

2020 ◽  
pp. 147715352097452
Author(s):  
D Pan ◽  
YC Zhang ◽  
XF Xie ◽  
MJ Fan ◽  
YA Chen ◽  
...  
Keyword(s):  
Outer Surface ◽  
Design Method ◽  
Optical Design ◽  
Large Angle ◽  
Target Surface ◽  
Optical Surfaces ◽  
Road Lighting ◽  
Street Lamp ◽  
Square Spot ◽  
Illuminance Uniformity

The traditional square spot of street lamp is not suitable for the lighting requirements of the annular road lighting. In this paper, a lens design method for producing annular spot of high mast lamp is proposed. The method mainly contains three optical surfaces, in which the inner surface collimates the energy of the centre part of the light source, the total internal reflection surface collimates the light with large angle and low energy and the outer surface refracts all the collimated light to realise the annular illumination distribution on the target surface. In this design, we can change the diameter of the lighting spot through the variation of the inclination angle of the outer surface from 14° to 19° and the diameter of the spot changes from 10.2 m to 12.3 m at the distance of 30 m. The lighting requirements of high mast lighting are realised based on the TIR lens array, in which the average illuminance is more than 20 lx, the illuminance uniformity is more than 0.7 and the light optical utilisation factor is more than 90%.

Optical design method for high zoom ratio lens with liquid lens and digital signal processing

2007 ◽  
Author(s):  
Chao-Chang Hu ◽  
Yi C. Fang ◽  
Chen-Mu Tsai ◽  
Han-Ching Lin ◽  
Han-Wei Su ◽  
...  
Keyword(s):  
Signal Processing ◽  
Digital Signal Processing ◽  
Design Method ◽  
Optical Design ◽  
Digital Signal ◽  
Liquid Lens

scholarly journals New Optical Design Method of Floating Type Collimator for Microscopic Camera Inspection

2021 ◽  
Vol 11 (13) ◽  
pp. 6203
Author(s):  
Seonkoo Chee ◽  
Jaemyung Ryu ◽  
Hojong Choi
Keyword(s):  
Mobile Phone ◽  
Design Method ◽  
Optical Design ◽  
Target Position ◽  
Target Size ◽  
Virtual Object ◽  
Wide Field ◽  
Object Distance ◽  
Floating Type ◽  
Mobile Phone Camera

Recently released mobile phone cameras are capable of photographing objects at a fairly close distance. In addition, the field angle from the camera has increased. To measure the resolution of a mobile phone camera, the target must be photographed. To measure the resolution according to the object distance change from a mobile phone camera with a wide field angle, the target size must be large, whereas the target position must be moved. However, the target size cannot be changed. A virtual object for the target was created using a collimator. Moving a part of the lens group constituting the collimator also changes the virtual object distance. If the amount of change in the virtual object distance is large, the resolution of the collimator may also change. Therefore, a collimator that maintains the resolution even when the distance of the virtual object changes is designed as a floating type in which two lens groups move. Therefore, we propose a new floating collimator optical system that can inspect the resolution of mobile phone cameras from infinity to a close range to compensate for aberrations caused by object distance changes.

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