scholarly journals Development of the coaxial optical system for ultra compact high performance angular sensor

2009 ◽  
Vol 75 (8) ◽  
pp. 1019-1023 ◽  
Author(s):  
Takeshi MUSHA ◽  
Hajime NAKAJIMA ◽  
Toshiro NAKASHIMA ◽  
Takashi OKAMURO ◽  
Yoichi OHMURA ◽  
...  
Keyword(s):  
Optical System ◽  
High Performance

High Performance Complex Optical System Design for Sun Sensor

2008 ◽  
Vol 28 (2) ◽  
pp. 344-348 ◽  
Author(s):  
江洁 Jiang Jie ◽  
温志明 Wen Zhiming ◽  
张广军 Zhang Guangjun ◽  
樊巧云 Fan Qiaoyun
Keyword(s):  
System Design ◽  
Optical System ◽  
High Performance ◽  
Optical System Design ◽  
Sun Sensor

scholarly journals Design of a High-Performance Digital Slit-Lamp Microscope with Five-Switched Zoom

2020 ◽  
Vol 10 (8) ◽  
pp. 2757 ◽  
Author(s):  
Youping Huang ◽  
Xiaogang Chen ◽  
Hao Zhang ◽  
Shuyan Huang ◽  
Feng Lin
Keyword(s):  
Optical System ◽  
Modulation Transfer Function ◽  
High Performance ◽  
Tolerance Analysis ◽  
Slit Lamp ◽  
Modulation Transfer ◽  
Coaxial System ◽  
Progressive Optimization ◽  
Telescope System ◽  
Quality Imaging

In this study, we design and present a five-fold digital slit-lamp microscope (DSLM) with built-in photographic lens and CCD. The initial structures of the front objective, Galilean telescope system, and photographic lens are systematically investigated and discussed in the design. A progressive optimization process is employed in the non-coaxial system design after the coaxial system achieves high performance. The analysis of spot diagrams and the modulation transfer function (MTF) show that this DSLM optical system achieves quasi-diffraction-limited performance and enables high-quality imaging for ophthalmic examination. Furthermore, tolerance analysis of this optical system is also performed, which provides a theoretical basis for machining and assembly. This design provides an idea for the design of a digital-zoom microscope in biomedical imaging instruments.

scholarly journals Transient Dynamical-Thermal-Optical System Modeling and Simulation

2020 ◽  
Vol 238 ◽  
pp. 12001
Author(s):  
Luzia Hahn ◽  
Peter Eberhard
Keyword(s):  
Optical System ◽  
High Performance ◽  
System Modeling ◽  
Computational Cost ◽  
Order Reduction ◽  
Optical Systems ◽  
Model Order ◽  
Transient Simulations ◽  
Reduction Methods ◽  
Low Computational Cost

In this work, methods and procedures are investigated for the holistic simulation of the dynamicalthermal behavior of high-performance optics like lithography objectives. Flexible multibody systems in combination with model order reduction methods, finite element thermal analysis and optical system analyses are used for transient simulations of the dynamical-thermal behavior of optical systems at low computational cost.

Development of a High-Performance Optical System for Small Satellites

2008 ◽  
pp. 89-99
Author(s):  
Young-Wan Choi ◽  
Seung-Uk Yang ◽  
Myung-Seok Kang ◽  
Ee-Eul Kim
Keyword(s):  
Optical System ◽  
High Performance ◽  
Small Satellites

Athermal Design of Infrared Telephoto Used in Joint Transform Correlator

2013 ◽  
Vol 552 ◽  
pp. 57-63
Author(s):  
Jia Ning Dong ◽  
Da Mu ◽  
Chun Yun Xu
Keyword(s):  
Image Quality ◽  
Optical System ◽  
High Performance ◽  
Focal Length ◽  
Optical Design ◽  
Technical Specification ◽  
Price Ratio ◽  
Joint Transform Correlator ◽  
Compact Structure ◽  
Disk Radius

On the basis of optical correlation detection, joint transform correlator(JTC) is widely used in military, aviation and intelligentization and so on. It has the advantages of great flexibility and high precision of recognition. The optical system is applied to receive the infrared radiation of the target. Athermalization is the key to stabilizing the optical performance with respect to off-design temperature. Therefore, the image quality of optical system in different temperatures plays an important role in JTC. In order to improve the environmental adaptability of JTC, the infrared telephoto system with high image quality and high performance-price ratio is designed for wavelength 8μm～12μm to detect target in a large range of temperature. This telephoto lens is composed of four refractive lenses. Three materials, zinc selenide, germanium and zinc sulfide are used to compensate for the temperature. The focal length is 200 mm, the relative aperture is 1:3, and the field of view is 6.4°. This system has the characteristics of small volume and compact structure. The optical system image quality is evaluated with ZEMAX optical design software. The results have shown that MTFs in the range of -40°C to +60°C are all closed to the diffraction limited curve. The spot diagram RMS radius of each field is closed to the Airy disk radius. The system meets the requirements of technical specification and improves the ability of JTC in target tracking and recognition.

Research on Machining System Design and Machining Method of Micro Optical Aspheric Surface

2007 ◽  
Author(s):  
Hao Huang ◽  
Yinbiao Guo
Keyword(s):  
System Design ◽  
High Precision ◽  
Optical System ◽  
Error Compensation ◽  
High Performance ◽  
Technical Condition ◽  
Aspheric Surface ◽  
Precision Manufacturing ◽  
Surface Machining ◽  
Machining System

At present high precision aspheric surface has been widely used in high performance optical system, but at current technical condition, the machining of high precision aspheric surface is still difficult. According to the requirement of high precision micro aspheric surface machining, three machining method of spherical wheel machining in micro axisymmetric aspheric has been put forward. And a high precision manufacturing and measurement system based on the machining method mentioned above has been designed and realized. It adopts the technology of tool uniform wear and error compensation, can be chose different machining method, and reach to the requirement of high precision micro aspheric surface machining.

Design of Dual Field of View and Zoom Infrared Optical System

2011 ◽  
Vol 403-408 ◽  
pp. 2919-2922
Author(s):  
Ying Chao Li ◽  
Yuan Jian Zhang
Keyword(s):  
Optical System ◽  
High Performance ◽  
Small Volume ◽  
Optical Axis ◽  
Focal Plane Arrays ◽  
Field Of View ◽  
Light Weight ◽  
Axial Motion ◽  
Aspheric Surfaces ◽  
Optical Configuration

A dual field of view and zoom infrared optical system with uncooled infrared staring focal plane arrays is designed in this paper. The operating waveband of the system is 8～12μm, and zoom radio is 3×. The optical configuration is based on the axial motion of a lens group along the optical axis. Optical material used infrared monocrystalline silicon、Znse, In order to achieve high performance、high image quality, used two even aspheric surfaces in this system. The advantages of this system are the high imaging quality、small volume、light weight.

Development of high-performance optical system for small satellites

2007 ◽  
Author(s):  
Young-Wan Choi ◽  
Seung-Uk Yang ◽  
Myung-Seok Kang ◽  
Ee-Eul Kim
Keyword(s):  
Optical System ◽  
High Performance ◽  
Small Satellites
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