Design of Backward-Detection Optical System in Biological Cell Subclass Identification

2011 ◽  
Vol 181-182 ◽  
pp. 220-224
Author(s):  
Ya Wei Wang ◽  
Shou Wang Jiang ◽  
Xian Kai Wang ◽  
Xiang Long Tian ◽  
Qu Wei Yue ◽  
...  
Keyword(s):  
Optical System ◽  
Classification Accuracy ◽  
Optical Design ◽  
Stray Light ◽  
Design Parameters ◽  
Biological Cell ◽  
Signal Collection ◽  
Design Software ◽  
Scattering Signal ◽  
Scatter Light

In order to improve the classification accuracy of cell subsets, a telecentric system which is based on the characteristics of cell’s scattering is designed. The irradiating and receiving light work collinearly in this system, and the optical receiving efficiency of back scatter light increases to twice the origin by using a special mirror. The optical design parameters and structures are given by using aberration theories and optical design software. The performance and signal collection of the optical system are analysised. When the resolution is 100lp/mm, the MTF is more than 0.17. The stray light is effectively filtered out and the accuracy of scattering signal is improved. The optical system can be used to identify eukocyte.

The Design of a Hybrid Diffractive-Refractive Wide-Angle Eyepiece with a Large Exit Pupil Distance

2013 ◽  
Vol 710 ◽  
pp. 469-473
Author(s):  
Feng Wang ◽  
Jian Zhong Cao ◽  
En Shi Qu ◽  
Deng Qun Yu ◽  
A Qi Yan ◽  
...  
Keyword(s):  
Image Quality ◽  
Optical System ◽  
Focal Length ◽  
Optical Design ◽  
Random Phase ◽  
Optical Element ◽  
Wide Angle ◽  
Optical Elements ◽  
Exit Pupil ◽  
Design Software

The diffractive optical elements, with the negative dispersive characteristic and the random phase distributing to realize random phase modulation for wave-front, are not only helpful to simplify the optical system, but also improve the image quality, while putting it into the optical system. It can decrease the element numbers of the system and obtain a compact configuration that introducing diffractive optical element into the design of eyepiece. A hybrid diffractive-refractive wide-angle eyepiece, with a big exit pupil distance, is designed by using the Code V Optical Design Software. The features of the wide-angle eyepiece are 30mm effective focal length, 60°whole field-of-view (FOV), 30mm exit pupil distance and 6mm exit pupil diameter, and which consists of four lens and two diffractive elements. From the result of design, the MTF in the center field of the wide-angle eyepiece is over 0.55at 60lp/mm, at the same time, the MTFs in all fields are over 0.3 at 50lp/mm, which show that this wide-angle eyepiece has a great image quality.

Optical Design and Stray Light Analysis for Ultraviolet Board Width Off-Axis Four Mirrors Optical System

2015 ◽  
Vol 42 (2) ◽  
pp. 0216001
Author(s):  
朱杨 Zhu Yang ◽  
张新 Zhang Xin ◽  
伍雁雄 Wu Yanxiong ◽  
张继真 Zhang Jizhen ◽  
史广维 Shi Guangwei ◽  
...  
Keyword(s):  
Optical System ◽  
Optical Design ◽  
Stray Light

Lens Design of Low Light Level Night Vision Objective Optical System

2014 ◽  
Vol 568-570 ◽  
pp. 1778-1781
Author(s):  
Yu Chen ◽  
Chun Hong Hu ◽  
Yan Chun Luo ◽  
Ping Wang
Keyword(s):  
Optical System ◽  
Vision System ◽  
Optical Design ◽  
Light Level ◽  
Night Vision ◽  
Objective Lens ◽  
Lens Design ◽  
Low Light ◽  
Working Principle ◽  
Design Software

This paper discussed the working principle of the LLL night vision(low-light level night vision)device and researched into the LLL night vision objective opjective optical system.An LLL night vision objective optical system with good image quality is finally got,which comes after debugging with the optical design software ZEMAX according to the theoretical calculation of the objective lens parameters specific to night vision system.

Three Mirrors Aberrations Optical Transform Function with the Thermal Elastic Deformation

2011 ◽  
Vol 143-144 ◽  
pp. 181-184
Author(s):  
Yu Fan ◽  
Xue Feng Wu
Keyword(s):  
Temperature Gradient ◽  
Optical System ◽  
Optical Design ◽  
Thermal Design ◽  
Optical Analysis ◽  
Axial Temperature Gradient ◽  
Axial Temperature ◽  
Design Software ◽  
Temperature Loads ◽  
Optical Transform

The field angle of TMA (three mirrors aberration) optical system is larger than coaxial optical system and more susceptible to the structure deformation. Thermal optical analysis is proposed for evaluating the optical MTF (module transform function). Temperature loads, such as X axial, Y axial and Z axial temperature gradients, are put on the optical system. The thermal elasticity deformations of reflector mirror surfaces made by frame deformation are computed. The deformations of reflector mirror surfaces are expressed in Zernike polynomial. With the optical design software optical MTF is computed. The results show that the X axial temperature gradient causes the MTF of optical system reduced furthest, the Y axial temperature gradient causes the minor MTF change, and the Z axial temperature gradient causes the least change of MTF. The research jobs could give some guidance and reference for the thermal design for TMA optical system.

Experiment Layout of Space Laser Communication System Based on Adaptive Optical System

2011 ◽  
Vol 287-290 ◽  
pp. 3020-3023
Author(s):  
Shu Fan Wang ◽  
Xiao Tian Wang ◽  
Xiang Yang Zou ◽  
Yong Wen
Keyword(s):  
Adaptive Optics ◽  
Optical System ◽  
Communication System ◽  
Optical Design ◽  
Low Earth Orbit ◽  
Laser Communication ◽  
Adaptive Optical System ◽  
Ground Station ◽  
Design Software ◽  
Beam Transmission

Sixty-one unit adaptive optical system was used to analyze the influence of atmospheric turbulence on laser beam transmission in space laser communication system. From low earth orbit planet to ground station Laser communication system was estimated by means of optical design software. In addition, the compensation results, experimental phenomena and data based on adaptive optics were also analyzed in the paper.

scholarly journals Design and Implementation Guidelines for a Modular Spectral-Domain Optical Coherence Tomography Scanner

2018 ◽  
Vol 2018 ◽  
pp. 1-22 ◽  
Author(s):  
Farid Atry ◽  
Israel Jacob De La Rosa ◽  
Kevin R. Rarick ◽  
Ramin Pashaie
Keyword(s):  
Optical Coherence Tomography ◽  
Imaging System ◽  
Optical Design ◽  
Spectral Domain ◽  
Design Parameters ◽  
Optical Coherence ◽  
Custom Made ◽  
Essential Knowledge ◽  
Sd Oct

In the past decades, spectral-domain optical coherence tomography (SD-OCT) has transformed into a widely popular imaging technology which is used in many research and clinical applications. Despite such fast growth in the field, the technology has not been readily accessible to many research laboratories either due to the cost or inflexibility of the commercially available systems or due to the lack of essential knowledge in the field of optics to develop custom-made scanners that suit specific applications. This paper aims to provide a detailed discussion on the design and development process of a typical SD-OCT scanner. The effects of multiple design parameters, for the main optical and optomechanical components, on the overall performance of the imaging system are analyzed and discussions are provided to serve as a guideline for the development of a custom SD-OCT system. While this article can be generalized for different applications, we will demonstrate the design of a SD-OCT system and representative results for in vivo brain imaging. We explain procedures to measure the axial and transversal resolutions and field of view of the system and to understand the discrepancies between the experimental and theoretical values. The specific aim of this piece is to facilitate the process of constructing custom-made SD-OCT scanners for research groups with minimum understanding of concepts in optical design and medical imaging.

Optical design and stray light control for the spacebased laser space debris removal mission

2021 ◽  
Author(s):  
Han Peixian ◽  
JunLi Guo ◽  
QIHONG BAO ◽  
Tao Qin ◽  
ren ge ◽  
...  
Keyword(s):  
Space Debris ◽  
Optical Design ◽  
Stray Light ◽  
Light Control ◽  
Debris Removal

scholarly journals Research on Laser Dazzle Simulation Using ZEMAX Software and MATLAB

2020 ◽  
Vol 327 ◽  
pp. 02001
Author(s):  
Niu jin ◽  
Xu xiping ◽  
An zhiyong
Keyword(s):  
Ray Tracing ◽  
Programming Language ◽  
Optical Design ◽  
Optical Element ◽  
Analysis Model ◽  
Software Simulation ◽  
Scope Of Application ◽  
Disability Glare ◽  
Design Software ◽  
Calibration And Verification

The dazzling process of the laser has been digitally simulated. First, the optical design software (ZEMAX) is combined with the scientific programming language (MATLAB), then the ray tracing is used to build the scattering model of each optical element, and finally compared with a simpler model based on CIE disability glare data to achieve the calibration and verification of the software simulation effect. The results show that this advanced optical eye simulation technology can be used to study the laser glare efficiency, and it is possible to expand the scope of application of the analysis model.

scholarly journals Optical Design of Improved Offner Imaging Spectrometer

2021 ◽  
Vol 2112 (1) ◽  
pp. 012007
Author(s):  
Chong Song ◽  
Yong Huang ◽  
Yangdong Yan ◽  
Dongsen Cui ◽  
Gang Wang ◽  
...  
Keyword(s):  
Optical System ◽  
Optical Design ◽  
Annular Region ◽  
Practical Application ◽  
Imaging Spectrometer ◽  
Imaging Quality ◽  
Lens Position ◽  
Operating Wavelength ◽  
The Stability ◽  
System Characteristics

Abstract An improved Offner imaging spectrometer was proposed based on the optical system characteristics of Offner imaging spectrometer, which can ensure perfect imaging quality in a wider annular region. The operating wavelength of the improved Offner imaging spectrometer ranges from 900nm to 1700nm, and the magnification is 1. Improved Offner imaging spectrometer can be obtained by changing the meniscus lens position and further optimizing the design. The results indicate that the improved Offner imaging spectrometer can effectively improve compactness and lightweight, and reduce the difficulty of optical adjustment, which is conducive to the stability of practical application.

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