检索结果-内蒙古大学图书馆

5TH CONF ON current developments IN optical design AND optical engineering

作者： WEINSWIG, S HOOKMAN, RA ITT Corp. (United States)

ISBN: (纸本)0819406554

The techniques used for the analysis of thermally induced structural distortions of optical components such as scanning mirrors and telescope optics are outlined. Particular attention is given to the methodology used in the thermal and structural analysis of the GOES scan mirror, the optical analysis using Zernike coefficients, and the optical system performance evaluation. It is pointed out that the use of Zernike coefficients allows an accurate, effective, and simple linkage between thermal/mechanical effects and the optical design.

关键词： Mirrors Thermal modeling optical design optical analysis optical engineering Zernike polynomials Performance modeling Thermography Code v optical components

来源：评论

学校读者我要写书评

暂无评论

Development of methods for accurate modeling of optical equipment for three-dimensional printing 17

Development of methods for accurate modeling of optical equi...

引用

Conference on current developments in Lens design and optical engineering XvII

作者： Saitgalina, A. K. Tolstoba, N. D. Mitiushkin, A., v ITMO Univ Dept Appl & Comp Opt Kronverksky Ave 49 St Petersburg 197101 Russia

ISBN: (数字)9781510602861

ISBN: (纸本)9781510602854;9781510602861

The task of this research project is to define the extent of applicability of such 3D self-manufacture approach to the production of optical fastenings. The resulting lack of equipment, to be used for demonstration of simple experiments, which would be both competitive in performance and cheap to produce, led to the decision to research opportunities for self-manufacturing.

关键词： Three-dimensional printing Student Research Laboratory for optical engineering optical equipment printing capabilities 3D printers Accuracy optical instruments

来源：评论

学校读者我要写书评

暂无评论

Balancing detector effects with aberrations in the design of wide-field grazing incidence x-ray telescopes

引用

optical engineering 2006年第6期45卷 063003-1-063003页

作者： Harvey, James E. Atanassova, Martina Krywonos, Andrey Univ Cent Florida CREOL Orlando FL 32826 USA

Most imaging systems today include a mosaic detector array in the focal plane. optical designers of astronomical telescopes typically produce a design that yields a superb on-axis aerial image in the focal plane, and detector effects are included only in the analysis of the final system performance. Aplanatic optical designs (corrected for spherical aberration and coma) are widely considered to be superior to nonaplanatic designs. However, there is little merit in an aplanatic design for wide-field applications because one needs to optimize some field-weighted-average measure of resolution over the desired operational field of view (OFOv). Furthermore, when used with a mosaic detector array in the focal plane, detector effects eliminate the advantage of the aplanatic design even at small field angles. For wide fields of view, the focal plane is frequently despaced to balance field curvature with defocus thus obtaining better overall performance. We will demonstrate that including detector effects in the optical design process results in a different optimal (nonaplanatic) design for each OFOv that is even superior to an optimally despaced aplanatic design. (c) 2006 Society of Photo-optical Instrumentation Engineers.

关键词： detector effects wide-field imaging systems grazing incidence x-ray telescopes

来源：评论

学校读者我要写书评

暂无评论

Ultra-fast focal reducer design for ∼2m-class telescopes

Ultra-fast focal reducer design for ∼2m-class telescopes

引用

Conference on current developments in Lens design and optical engineering v

作者： Beach, D Appl Phys Ltd Christchurch 8153 New Zealand

ISBN: (纸本)0819454613

An ultra-fast focal reducer design originally intended for use with spherical primary mirrors (published in optical engineering, February, 2003), has been adapted for use as a retro-fit for existing telescopes of similar to2m pupil diameter that have aspheric mirrors. The focal reducer has only one aspheric surface, located at the aperture stop, and can provide speeds up to f/0.75 while maintaining a wide field with pixel-limited resolution and a broad spectral passband. Examples have been computed for Ritchie-Chretien, Dall-Kirkham and Cassegrain systems, and for use at the prime focus of mirrors with non-zero conic constants.

关键词： focal reducer high speed high resolution wide angle broad spectral passband retrofit telescopes

来源：评论

学校读者我要写书评

暂无评论

design and analysis of a spaceborne lidar telescope

Design and analysis of a spaceborne lidar telescope

引用

Conference on current developments in optical design and engineering v

作者： FENG, C AHMAD, A AMZAJERDIAN, F UNIV ALABAMA CTR APPL OPTHUNTSVILLEAL 35899

ISBN: (纸本)0819418994

A spaceborne telescope has been designed and analyzed for a 2-micron solid state coherent lidar system operating on a satellite. The optical system consists of a large off-axis reflective telescope, a large-aperture diffractive scanner, an image derotator and a lag angle compensator. Due to the orbiting motion of the satellite and scanning, the boresight of the telescope shifts during the round trip travel time of the laser pulses to the target. In a coherent lidar system utilizing optical heterodyne detection, the relative alignment of the received signal with respect to the local oscillator beam is particularly critical. Two compensators have been designed to correct the boresight errors as well as the wavefront errors caused by beam wandering due to the boresight changes. Several design approaches for the compensators have been investigated. The optical and optomechanical design issues for such a system are discussed. The results of optical performance, modeling, and tolerance analysis for the telescope are also presented.

关键词： optical design AND MODELING LARGE REFLECTIvE OPTICS DIFFRACTIvE OPTICS TOLERANCE ANALYSIS BORESIGHT SHIFT COMPENSATION LIDAR COHERENT LASER RADAR SATELLITE

来源：评论

学校读者我要写书评

暂无评论

Harnessing natural polymers and nanoparticles: Synergistic scaffold design for improved wound healing

Hybrid Advances

引用

Hybrid Advances 2025年 8卷

作者： S, Anitha Nadar, Nandini Robin Shivakumar, Srividya C, Sharma S P, Siddharth varalakshmi v, Surekha Lenka, Rajesh S, Rajadurai Department of Microbiology and Botany School of Sciences Jain (Deemed-to-be University) JC road campus India International Institute of Aerospace Engineering and Management (IIAEM) Jain Global Campus Bengaluru 562112 India School of Allied Healthcare and Sciences Jain (Deemed-to-be University) Whitefield campus India Law and Forensic Materials Jain University Bangalore India Dr. Chenraj Roy Chand R & D centre Jain College V.V. Puram Bangalore 560004 India General Medicine Mahatma Gandhi Medical Research Institute Sri Balaji Vidyapeeth Pondicherry Campus Pondicherry 607402 India Dept. of Physiology Faculty of Allied Health Sciences & Dean Research Meenakshi Academy of Higher Education and Research Chennai 600 078 India Department of Microbiology IMS & SUM Hospital SOA University Odisha Bhubaneswar 751003 India Department of Orthopaedics Meenakshi Medical College Hospital and Research Institute Meenakshi Academy of Higher Education & Research Chennai 600078 India

Skin health is a vital indicator of overall well-being, notably influencing emotional and psychological states. Skin injuries which include, burns and diabetic, venous, and pressure ulcers are significant concerns in health care that are often demanding for appropriate management programs. Skin injuries may be due to acute or chronic trauma, infections, and operations and can cause severe dysfunction or death. Hence, early clinical intervention becomes crucial in managing the problem. Wound care involves many strategies from simple local dressing to complex debridement techniques such as bioactive dressings and skin grafting. Conventional wound healing products do not heal wounds adequately and can cause scarring, suggesting the possibility of new biomaterials. The current developments of applying natural polymers, which are large organic compounds obtained from renewable resources, have revealed potential utilization in biomedicine due to their inherent antibacterial and antioxidant features. These polymers are biocompatible, biodegradable, and nontoxic to the environment, therefore of great importance in developing sustainable products. The incorporation of nanoparticles brings beneficial changes to natural polymers where the antibacterial, anti-inflammatory, and mechanical property is improved. The synergistic approach results in novel scaffold designs that promote cell functions and mimic the extracellular matrix (ECM) to further enhance wound healing. The present review aims to emphasize the potential and application of natural polymers in wound treatment. © 2025 The Authors

关键词： Biocompatible Natural polymers Scar reduction Silver nanoparticle Wound healing

来源：评论

学校读者我要写书评

暂无评论

Moire interferometry for engineering mechanics: current practices and future developments

引用

JOURNAL OF STRAIN ANALYSIS FOR engineering design 2001年第1期36卷 101-117页

作者： Han, B Post, D Ifju, P Univ Maryland Dept Mech Engn Inst Technol College Pk MD 20742 USA Virginia Polytech Inst & State Univ Dept Engn Sci & Mech Blacksburg VA 24061 USA Univ Florida Gainesville FL USA

In the past decade, the optical method called moire interferometry has matured rapidly to emerge as an invaluable tool, proved by many industrial and scientific applications. It has been applied to numerous problems in engineering mechanics. It measures in-plane displacement fields with high sensitivity and high spatial resolution. This paper reviews current practices of moire interferometry and its extensions. Applications in diverse fields are addressed to demonstrate the wide applicability of the method, especially the recent applications for thermal deformation analyses of microelectronics devices. Speculation on future developments and practices is presented.

关键词： moire interferometry engineering mechanics

来源：评论

学校读者我要写书评

暂无评论

optical design ANALYSIS INCORPORATING ACTUAL SYSTEM INTERFEROMETRIC DATA

OPTICAL DESIGN ANALYSIS INCORPORATING ACTUAL SYSTEM INTERFER...

引用

CONF ON current developments IN optical engineering AND COMMERCIAL OPTICS

作者： WILLEY, G PATCHIN, R CAI a Division of RECON/OPTICAL INC. (United States)

ISBN: (纸本)0819402044

Interferometric measurements of real surfaces are combined with computed optical design analyses. To accomplish this, a special software interface driver was developed to accept serial optical Path Difference (OPD) data from a Zygo Mark III interferometer, apply standard algorithms, and convert the measured data into a CODE v readable file. Analysis was conducted on a large aperture developmental optical system containing a fold mirror of eggcrate construction. MTF performance of the entire system was computed as were the contributions of individual surfaces to overall optical quality. Diffraction effects due to the rib structure of the eggcrate mirror were apparent in this analysis, as were the effects of gravity and figure components of the wavefront. This hybrid analysis demonstrates the usefulness of coupling interferometry with an optical design program in the analysis of complex optical systems.

关键词： Mirrors Modulation transfer functions Wavefronts Diffraction Interferometry Code v Computing systems optical engineering Data modeling Error analysis

来源：评论

学校读者我要写书评

暂无评论

design and fabrication of microlens by microfluidic deposition method

Design and fabrication of microlens by microfluidic depositi...

引用

Conference on current developments in Lens design and optical engineering v

作者： Chen, CT Chiu, CL Horng, JB Ind Technol Res Inst Optoelect & Syst Labs Hsinchu 741 Taiwan

ISBN: (纸本)0819454613

The paper presents a new processing method for design and fabrication of microlens by microfluidic deposition, in which the lenses can be formed on the media with high precise location in the fabrication process. First we may apply physical vaporization deposition (PvD) or spin coating to fabricate a thin film;secondly, the hydrophilic pattern specified by the mask of lenses can be created by photolithography, where the special lens media is made herein. Finally, the liquid solution of lens material is deposited onto the predetermined location of the lens media by the drop-on-demand fluidic actuator;thus, the microlenses are consequently formed after the complete evaporation of solvent in the solution.

关键词： microlens fabrication microfluidic deposition ink-jet

来源：评论

学校读者我要写书评

暂无评论

optical schemes for compact space objectives 18

Optical schemes for compact space objectives

引用

Conference on current developments in Lens design and optical engineering XvIII

作者： Butylkina, K. D. Romanova, G. E. Bakholdin, A., v ITMO Univ 49 Kronverksky Pr St Petersburg 197101 Russia

ISBN: (纸本)9781510612082;9781510612075

The most widely used objectives for the space optics are mirror and catadioptric systems. We have considered several scheme types including the three-mirror schemes both of the Korsch-type and the systems without an intermediate image and compare them from the point of view of packaging conditions, image quality and achievable characteristics. The two-mirror systems with lens correctors are also analyzed. The optical layout and parameters of several variants are presented and the image quality is shown.

关键词： three-mirror systems Korsch scheme lens correctors optical systems design

来源：评论

学校读者我要写书评

暂无评论

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：

请选择收藏分类：

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

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：