检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

571 篇 会议
6 篇 期刊文献

馆藏范围

577 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

545 篇 理学
- 536 篇 物理学
- 22 篇 数学
- 5 篇 化学
- 5 篇 地球物理学
- 3 篇 系统科学
- 2 篇 地质学
- 1 篇 大气科学
- 1 篇 海洋科学
- 1 篇 生物学
232 篇 工学
- 84 篇 光学工程
- 74 篇 仪器科学与技术
- 74 篇 电气工程
- 38 篇 材料科学与工程（可...
- 30 篇 计算机科学与技术...
- 25 篇 电子科学与技术（可...
- 22 篇 软件工程
- 19 篇 化学工程与技术
- 15 篇 信息与通信工程
- 9 篇 机械工程
- 9 篇 控制科学与工程
- 5 篇 航空宇航科学与技...
- 3 篇 力学（可授工学、理...
- 3 篇 建筑学
- 2 篇 冶金工程
- 2 篇 动力工程及工程热...
- 2 篇 土木工程
112 篇 医学
- 112 篇 临床医学
5 篇 管理学
- 5 篇 管理科学与工程(可...
- 2 篇 工商管理
1 篇 经济学
- 1 篇 应用经济学
1 篇 农学

主题

107 篇 optical design
61 篇 lens design
20 篇 optical engineer...
18 篇 optical systems
17 篇 lenses
14 篇 distortion
14 篇 monochromatic ab...
13 篇 glasses
13 篇 mirrors
12 篇 tolerancing
12 篇 optimization
12 篇 refractive index
11 篇 diffractive opti...
10 篇 spherical lenses
10 篇 optical instrume...
10 篇 telescopes
10 篇 chromatic aberra...
10 篇 geometrical opti...
10 篇 image quality
10 篇 optical componen...

机构

9 篇 univ arizona col...
5 篇 caltech jet prop...
4 篇 natl cent univ d...
4 篇 fraunhofer inst ...
4 篇 natl cent univ i...
4 篇 jet propulsion l...
3 篇 delft univ techn...
3 篇 natl appl res la...
3 篇 optical systems ...
3 篇 univ waterloo de...
3 篇 sandia natl labs...
3 篇 vrije univ bruss...
3 篇 natl cent univ t...
3 篇 costco opt water...
3 篇 rose hulman inst...
3 篇 natl taiwan univ...
3 篇 delft univ techn...
3 篇 univ waterloo de...
3 篇 natl cent univ d...
3 篇 univ waterloo de...

作者

20 篇 thibault simon
14 篇 sun ching-cherng
6 篇 thibault s
6 篇 thienpont hugo
6 篇 lee xuan-hao
6 篇 johnson r. barry
5 篇 santiago-alvarad...
5 篇 vazquez-montiel ...
5 篇 kucukcelebi doru...
5 篇 mahajan virendra...
5 篇 parent jocelyn
5 篇 santiago-alvarad...
5 篇 yu yeh-wei
5 篇 yang tsung-hsun
4 篇 gonzalez-garcia ...
4 篇 ma shih-hsin
4 篇 bociort florian
4 篇 van turnhout maa...
4 篇 mouroulis pantaz...
4 篇 dilworth donald ...

语言

577 篇 英文

检索条件"任意字段=Current Developments in Lens Design and Optical Engineering XVII"

共 577 条记录，以下是181-190 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Employment of fluorescence for autofocusing in direct laser writing micro-/nano-lithography 15

Employment of fluorescence for autofocusing in direct laser ...

引用

Conference on current developments in lens design and optical engineering XV

作者： Malinauskas, Mangirdas Zukauskas, Albertas Belazaras, Kastytis Vilnius Univ Fac Phys Dept Quantum Elect Laser Res Ctr LT-10223 Vilnius Lithuania

ISBN: (纸本)9781628412192

Herein we present the implementation of autofocusing in multi-photon Direct Laser Writing (DLW) lithography. It is based on fluorescence occurring within the confined volume of a photopolymer/photoresin excitation resulting to a voxel generation. The proposed method is further successfully employed for the nanofabrication of large scale (500 nm in height, up to 25 mm(2) in area) Diffractive optical Elements (DOE). The produced structures are characterized using Scanning Electron Microscope (SEM) and confocal optical profilometry. The introduced technique is potential for a simple, price and effort efficient upgrade of currently existing DLW micro-/nano-lithography setups.

关键词： Direct laser writing femsosecond pulses two-photon polymerization multi-photon excitation nanolitography autofucusing photopolymers diffractive optical elements

来源：评论

学校读者我要写书评

暂无评论

design and analysis of an adaptive lens that mimics the performance of the crystalline lens in the human eye 15

Design and analysis of an adaptive lens that mimics the perf...

引用

Conference on current developments in lens design and optical engineering XV

作者： Santiago-Alvarado, Agustin Cruz-Felix, Angel S. Iturbide-Jimenez, F. Martinez-Lopez, M. Ramirez-Como, M. Armengol-Cruz, V. Vasquez-Baez, I. Mixteca Technol Univ Huajuapan De Leon 69000 Oax Mexico

ISBN: (纸本)9781628412192

Tunable lenses are optical systems that have attracted much attention due to their potential applications in such areas like ophthalmology, machine vision, microscopy and laser processing. In recent years we have been working in the analysis and performance of a liquid-filled variable focal length lens, this is a lens that can modify its focal length by changing the amount of water within it. Nowadays we extend our study to a particular adaptive lens known as solid elastic lens (SEL) that it is formed by an elastic main body made of Polydimethylsiloxane (PDMS Sylgard 184). In this work, we present the design, simulation and analysis of an adaptive solid elastic lens that in principle imitates the accommodation process of the crystalline lens in the human eye. For this work, we have adopted the parameters of the schematic eye model developed in 1985 by Navarro et al.;this model represents the anatomy of the eye as close as possible to reality by predicting an acceptable and accurate quantity of spherical and chromatic aberrations without any shape fitting. An opto-mechanical analysis of the accommodation process of the adaptive lens is presented, by simulating a certain amount of radial force applied onto the SEL using the finite element method with the commercial software SolidWorks (R). We also present ray-trace diagrams of the simulated compression process of the adaptive lens using the commercial software OSLO (R).

关键词： Solid elastic lens tunable lens crystalline lens PDMS

来源：评论

学校读者我要写书评

暂无评论

"Moth's eye" anti-reflection gratings on germanium freeform surfaces 15

"Moth's eye" anti-reflection gratings on germanium freeform ...

引用

Conference on current developments in lens design and optical engineering XV

作者： Liu, Meng Shultz, Jason A. Owen, Joseph D. Davies, Matthew A. Suleski, Thomas J. Univ N Carolina Ctr Optoelect & Opt Commun Charlotte NC 28223 USA Univ N Carolina Ctr Precis Metrol Charlotte NC 28223 USA

ISBN: (纸本)9781628412192

Germanium is commonly used for optical components in the infrared, but the high refractive index of germanium causes significant losses due to Fresnel reflections. Anti-reflection (AR) surfaces based on subwavelength "moth's eye" gratings provide one means to significantly increase optical transmission. As found in nature, these gratings are conformal to the curved surfaces of lenslets in the eye of the moth. Engineered optical systems inspired by biological examples offer possibilities for increased performance and system miniaturization, but also introduce significant challenges to both design and fabrication. In this paper, we consider the design and fabrication of conformal moth's eye AR structures on germanium freeform optical surfaces, including lens arrays and Alvarez lenses. Fabrication approaches and limitations based on both lithography and multi-axis diamond machining are considered. Rigorous simulations of grating performance and approaches for simulation of conformal, multi-scale optical systems are discussed.

关键词： biomimetic optics freeform surfaces conformal optics moth's eye gratings infrared optical modeling diamond machining interference lithography

来源：评论

学校读者我要写书评

暂无评论

Study of Camera Calibration Process with Ray Tracing 15

Study of Camera Calibration Process with Ray Tracing

引用

Conference on current developments in lens design and optical engineering XV

作者： Poulin-Girard, A. -S. Dallaire, X. Veillette, A. Thibault, S. Laurendeau, D. Univ Laval Dept Phys Genie Phys & Opt Ctr Opt Photon & Laser Quebec City PQ G1V 0A6 Canada Univ Laval Dept gen elect & gen informat Lab vision & syst numer Quebec City G1V 0A6 PQ Canada

ISBN: (纸本)9781628412192

Camera calibration is essential for any optical system used to obtain 3D measurements from images. The precision of the 3D depth estimation relies on an appropriate camera model and the accurate estimation of model parameters. These parameters are sensitive to environmental conditions and it is well established that a vision system should be calibrated in operating conditions. This is not always possible since the calibration process is often tedious and time-consuming. Unfortunately, the use of poorly estimated calibration parameters for 3D reconstruction and measurements may lead to suboptimal performance of the system and inaccurate depth estimation. This paper presents a technique using an existing camera model and optical design software to perform calibration simulations. This virtual calibration technique allows for a study of the impact of environmental conditions on the calibration parameters. Using this procedure, it is also possible to predict the statistical behavior of the calibration parameters considering the chosen fabrication processes and tolerances. It can assist vision scientists in the choice of the optical system that best meets the requested precision of the 3D reconstruction. This technique could eventually be integrated in the lens design process to create more reliable optical systems that could be calibrated and used in a range of environmental conditions with a very small variation of their calibration parameters.

关键词： Camera calibration optical design software tolerancing lens design

来源：评论

学校读者我要写书评

暂无评论

optical performance analysis of plenoptic camera systems 15

Optical performance analysis of plenoptic camera systems

引用

Conference on current developments in lens design and optical engineering XV

作者： Langguth, Christin Oberdoerster, Alexander Brueckner, Andreas Wippermann, Frank Braeuer, Andreas Fraunhofer Inst Appl Opt & Precis Engn D-07745 Jena Germany

ISBN: (纸本)9781628412192

Adding an array of microlenses in front of the sensor transforms the capabilities of a conventional camera to capture both spatial and angular information within a single shot. This plenoptic camera is capable of obtaining depth information and providing it for a multitude of applications, e.g. artificial re-focusing of photographs. Without the need of active illumination it represents a compact and fast optical 3D acquisition technique with reduced effort in system alignment. Since the extent of the aperture limits the range of detected angles, the observed parallax is reduced compared to common stereo imaging systems, which results in a decreased depth resolution. Besides, the gain of angular information implies a degraded spatial resolution. This trade-off requires a careful choice of the optical system parameters. We present a comprehensive assessment of possible degrees of freedom in the design of plenoptic systems. Utilizing a custom-built simulation tool, the optical performance is quantified with respect to particular starting conditions. Furthermore, a plenoptic camera prototype is demonstrated in order to verify the predicted optical characteristics.

关键词： plenoptic camera depth of field depth resolution optical performance analysis customized microlens array

来源：评论

学校读者我要写书评

暂无评论

Near-infrared imaging equipment that detects small organic substances in thick foods 15

Near-infrared imaging equipment that detects small organic s...

引用

Conference on current developments in lens design and optical engineering XV

作者： Phetchalern, Souphaphone Tashima, Hiroto Ishii, Yuya Ishiyama, Takeshi Arai, Shinichi Fukuda, Mitsuo Toyohashi Univ Technol Dept Elect & Elect Engn Toyohashi Aichi 4418580 Japan

ISBN: (纸本)9781628412192

We have developed near-infrared imaging equipment that can detect small organic substances in foodstuffs with thicknesses of more than 1 mm. The equipment is composed of a high output laser diode and a CMOS camera. The irradiated light power distribution was highly uniform with a maximum optical density of 1.3 W/cm(2). A 0.3-mm-diameter wooden stick covered with a 2-mm-thick layer of ham can easily be distinguished in the images. The bones in fish and in chicken wing sticks could also be distinguished. The thicknesses of the fish and the chicken wing sticks were approximately 30 mm and 20 mm, respectively. We eliminated the low spatial frequency components from the images to improve the image contrast.

关键词： near-IR imaging optical equipment food contaminant detection foreign substance spatial frequency filter

来源：评论

学校读者我要写书评

暂无评论

Conception of a cheap infrared camera using a Fresnel lens 15

Conception of a cheap infrared camera using a Fresnel lens

引用

Conference on current developments in lens design and optical engineering XV

作者： Grulois, Tatiana Druart, Guillaume Guerineau, Nicolas Crastes, Arnaud Sauer, Herve Chavel, Pierre Off Natl Etud & Rech Aerosp French Aerosp Lab Chemin Huniere F-91127 Palaiseau France ULIS ZI Iles Cordees F-38113 Voroize France CNRS Inst Opt Lab Charles Fabry F-91127 Palaiseau France

ISBN: (纸本)9781628412192

Today huge efforts are made in the research and industrial areas to design compact and cheap uncooled infrared optical systems for low-cost imagery applications. Indeed, infrared cameras are currently too expensive to be widespread. If we manage to cut their cost, we expect to open new types of markets. In this paper, we will present the cheap broadband microimager we have designed. It operates in the long-wavelength infrared range and uses only one silicon lens at a minimal cost for the manufacturing process. Our concept is based on the use of a thin optics. Therefore inexpensive unconventional materials can be used because some absorption can be tolerated. Our imager uses a thin Fresnel lens. Up to now, Fresnel lenses have not been used for broadband imagery applications because of their disastrous chromatic properties. However, we show that working in a high diffraction order can significantly reduce chromatism. A prototype has been made and the performance of our camera will be discussed. Its characterization has been carried out in terms of modulation transfer function (MTF) and noise equivalent temperature difference (NETD). Finally, experimental images will be presented.

关键词： Thermal imaging microbolometers diffractive lenses low-cost applications

来源：评论

学校读者我要写书评

暂无评论

Overview of Diffraction Gratings Technologies for Space-flight Satellites and Astronomy 15

Overview of Diffraction Gratings Technologies for Space-flig...

引用

Conference on current developments in lens design and optical engineering XV

作者： Cotel, Arnaud Liard, Audrey Desserouer, Frederic Bonnemason, Francis Pichon, Pierre HORIBA Jobin Yvon SAS F-91165 Longjumeau France

ISBN: (纸本)9781628412192

The diffraction gratings are widely used in Space-flight satellites for spectrograph instruments or in ground-based telescopes in astronomy. The diffraction gratings are one of the key optical components of such systems and have to exhibit very high optical performances. HORIBA Jobin Yvon S.A.S. (part of HORIBA Group) is in the forefront of such gratings development for more than 40 years. During the past decades, HORIBA Jobin Yvon (HJY) has developed a unique expertise in diffraction grating design and manufacturing processes for holographic, ruled or etched gratings. We will present in this paper an overview of diffraction grating technologies especially designed for space and astronomy applications. We will firstly review the heritage of the company in this field with the space qualification of different grating types. Then, we will describe several key grating technologies developed for specific space or astronomy projects: ruled blazed low groove density plane reflection grating, holographic blazed replica plane grating, high-groove density holographic toroidal and spherical grating and transmission Fused Silica Etched (FSE) grism-assembled grating.

关键词： Holographic Ruled Blazed Diffraction Gratings optical Components Low stray light Diffraction Efficiency Reflection Grating

来源：评论

学校读者我要写书评

暂无评论

Multi-aperture microoptical system for close-up imaging 15

Multi-aperture microoptical system for close-up imaging

引用

Conference on current developments in lens design and optical engineering XV

作者： Berlich, Rene Brueckner, Andreas Leitel, Robert Oberdoerster, Alexander Wippermann, Frank Braeuer, Andreas Fraunhofer Inst Appl Opt & Precis Engn D-07745 Jena Germany

ISBN: (纸本)9781628412192

Modern applications in biomedical imaging, machine vision and security engineering require close-up optical systems with high resolution. Combined with the need for miniaturization and fast image acquisition of extended object fields, the design and fabrication of respective devices is extremely challenging. Standard commercial imaging solutions rely on bulky setups or depend on scanning techniques in order to meet the stringent requirements. Recently, our group has proposed a novel, multi-aperture approach based on parallel image transfer in order to overcome these constraints. It exploits state of the art microoptical manufacturing techniques on wafer level in order to create a compact, cost-effective system with a large field of view. However, initial prototypes have so far been subject to various limitations regarding their manufacturing, reliability and applicability. In this work, we demonstrate the optical design and fabrication of an advanced system, which overcomes these restrictions. In particular, a revised optical design facilitates a more efficient and economical fabrication process and inherently improves system reliability. An additional customized front side illumination module provides homogeneous white light illumination over the entire field of view while maintaining a high degree of compactness. Moreover, the complete imaging assembly is mounted on a positioning system. In combination with an extended working range, this allows for adjustment of the system's focus location. The final optical design is capable of capturing an object field of 36x24 mm(2) with a resolution of 150 cycles/mm. Finally, we present experimental results of the respective prototype that demonstrate its enhanced capabilities.

关键词： Multi-aperture imaging microoptics multi-channel optical design image sensors

来源：评论

学校读者我要写书评

暂无评论

Consumer electronic optics: How small can a lens be: The case of panomorph lenses 15

Consumer electronic optics: How small can a lens be: The cas...

引用

current developments in lens design and optical engineering XV

作者： Thibault, Simon Parent, Jocelyn Zhang, Hu Du, Xiaojun Roulet, Patrice COPL Université Laval QC Canada ImmerVision 2020 University QCH3A 2A5 Canada

ISBN: (纸本)9781628412192

In 2014, miniature camera modules are applied to a variety of applications such as webcam, mobile phone, automotive, endoscope, tablets, portable computers and many other products. Mobile phone cameras are probably one of the most challenging parts due to the need for smaller and smaller total track length (TTL) and optimized embedded image processing algorithms. As the technology is developing, higher resolution and higher image quality, new capabilities are required to fulfil the market needs. Consequently, the lens system becomes more complex and requires more optical elements and/or new optical elements. What is the limit? How small an injection molded lens can be? We will discuss those questions by comparing two wide angle lenses for consumer electronic market. The first lens is a 6.56 mm (TTL) panoramic (180° FOV) lens built in 2012. The second is a more recent (2014) panoramic lens (180° FOV) with a TTL of 3.80 mm for mobile phone camera. Both optics are panomorph lenses used with megapixel sensors. Between 2012 and 2014, the development in design and plastic injection molding allowed a reduction of the TTL by more than 40%. This TTL reduction has been achieved by pushing the lens design to the extreme (edge/central air and material thicknesses as well as lens shape). This was also possible due to a better control of the injection molding process and material (low birefringence, haze and thermal stability). These aspects will be presented and discussed. During the next few years, we donâ€™t know if new material will come or new process but we will still need innovative people and industries to push again the limits. © 2014 SPIE.

关键词： Plastic lenses

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共58页 << < 15 16 17 18 19 20 21 22 23 24 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：