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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

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optical design ANALYSIS INCORPORATING ACTUAL SYSTEM INTERFEROMETRIC DATA

OPTICAL DESIGN ANALYSIS INCORPORATING ACTUAL SYSTEM INTERFER...

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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

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

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

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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

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design and fabrication of microlens by microfluidic deposition method

Design and fabrication of microlens by microfluidic depositi...

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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

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

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

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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

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design and analysis of a spaceborne lidar telescope

Design and analysis of a spaceborne lidar telescope

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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

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Development of fast camera objective for spectrograph of Mont Megantique telescope

Development of fast camera objective for spectrograph of Mon...

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Conference on current developments in Lens design and optical engineering v

作者： Thibault, S Wang, M Bernier, S INO Opt Design Grp St Foy G1P 4S4 PQ Canada

ISBN: (纸本)0819454613

A fast (F/1.55) and wide-angle refractive camera objective has been developed to work with a large-size CCD on the focal plane of the spectrograph of Mont Megantique telescope for large spectral coverage from Uv to vIS and up to NIR. The novel camera objective has been designed and optimized with three different glass combinations in order to have higher throughputs for large spectral coverage, especially in Uv region. The tolerance analysis of the camera objective is given in the paper. The final opto-mechanical design of the objective is discussed with the consideration of the manufacturing tolerance in the optical and mechanical parts, as given in this paper. The used components have been minimized to reduce the light inherent lost. The optical testing results displayed the good optical performance of the camera with the required resolution for the whole FOv, as predicted by the optical simulation and computation. The broadband AR coating, enhanced on Uv region, have been used on each surface of the lenses in the optical system.

关键词： optical engineering fast spectrograph camera opto-mechanical design astronomical instrumentation

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Moire interferometry for engineering mechanics: current practices and future developments

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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

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Micro-optical elements for optical wireless applications

Micro-optical elements for optical wireless applications

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Conference on current developments in Lens design and optical engineering XIv

作者： Jin, Xian Guerrero, Daniel Klukas, Richard Holzman, Jonathan F. Univ British Columbia Sch Engn Integrated Opt Lab Kelowna BC V1V 1V7 Canada Univ British Columbia Sch Engn Posit & Navigat Signal Proc Lab Kelowna BC V1V 1V7 Canada

ISBN: (纸本)9780819496911

Customized high-contact-angle microlenses are presented for optical wireless communication (OWC) and optical wireless location (OWL) applications. These microlenses are fabricated by way of an electro-dispensing technique to establish wide field-of-views (FOvs). Each microlens is formed from dispensed Uv-curable polymer with pressure-control defining the microlens volume and a voltage on the metal needle tip defining the microlens shape (by way of electrowetting). Uv curing is then applied. Microlenses with FOvs up to 90 degrees are fabricated for high-density integration above a CMOS imaging sensor for wide-FOv operation in emerging OWC and OWL applications. Both theoretical ray-tracing analyses and experimental imaging results are presented with good agreement.

关键词： electro-dispensing field-of-view imaging sensor microlens optical wireless numerical aperture

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Fiber-optical system for visualization of inner pipe defects by microrobot.

Fiber-optical system for visualization of inner pipe defects...

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Conference on current developments in Lens design and optical engineering v

作者： Gradetsky, v Krabchuk, L Kniazkov, M Solovtsov, v Tulaikova, T Simakova, M Russian Acad Sci Inst Prob Mech Moscow 119526 Russia

ISBN: (纸本)0819454613

The control systems of the miniature robots are suggested for their motion over internal surfaces inside of the small diameter tubes. The mechanical system information-measuring sensor and control systems are considered. Three versions of the mechanical systems are suggested: electromagnetic, triad wheels and conversion of rotation motion to translation one. The electromagnetic mechanism use push pull tipe method for translation motion realization. Developed schemes in the modules design of control systems were checked experimentally on the robot's prototypes. Some results of the computer simulation illustrate the multilink robot control motion along the internal diameters of the tubes. This work was fulfilled under financial support of the Russian Found of Fundamental researches N 01-01-00913 and in frames of Federal Multi Purpose Scientific and Technical Program of Ministry of Industry, Science and Technologies: "Researches and developments on priority directions of science and technology", "Knowledgeable basic investigations" block, "Basic investigations at the field of physics sciences" part Mechanics.

关键词： minirobot in-tube motion mechanical system control algorithms on-board microprocessor control schemes

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