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

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BINOCULAR PERFORMANCE AND design

BINOCULAR PERFORMANCE AND DESIGN

引用

CONF ON current developments IN optical engineering AND COMMERCIAL OPTICS

作者： VUKOBRATOVICH, D University of Arizona (United States)

ISBN: (纸本)0819402044

A binocular extends the range of human vision. Binoculars enable the user to see objects at greater distances or, alternatively, to see greater detail in distant objects. In failing light, binocul are used to detect objects that the naked eye cannot detect. Binoculars also extend the range of stereo vision of the user; this application is primarily of interest in military fire control.

关键词： Prisms Eye Target detection Objectives Stray light optical engineering Glasses Tolerancing optical alignment Refraction

来源：评论

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LENS BLOCKING METHOD FOR OPTICAM

LENS BLOCKING METHOD FOR OPTICAM

引用

CONF ON current developments IN optical design AND optical engineering 2

作者： NOVAK, R MARRO, M TIPPS, JD CZAJKOWSKI, W DEMARCO, J SALAMON, PA MATCHETT, D CAPUTO, F LEBLANC, G Monroe Community College (United States) Eastman Kodak Co. (United States) Loctite Corp. (United States)

ISBN: (纸本)0819409251

A uv-curing 'cold' blocking adhesive has been developed by Loctite Corporation for use with the Opticam SM. The adhesive is a significant advance in the lens blocking process, as it eliminates heat-induced blocking strain; the most significant problem encountered with current hot pitch blocking methods. The new cold blocking adhesive is complemented by a new Kennametal lens blocking adapter tool and chucking system. The tooling offers substantially improved lens adapter to machine alignment and transfer; at considerably lower cost. The lenses are deblocked in a heated water and detergent solution, eliminating the environmental concerns of the current method.

关键词： Adhesives Optics manufacturing Glasses Light sources optical alignment Precision optics Roads UV optics Computing systems optical fabrication

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Positioning accuracy of primary mirror actuators for large aperture space based optical instruments

Positioning accuracy of primary mirror actuators for large a...

引用

Conference on current developments in Lens design and optical Systems engineering

作者： Hatheway, AE Alson E Hatheway Inc Pasadena CA 91101 USA

ISBN: (纸本)0819437387

This paper describes the Rubicon(tm) actuator, discusses its test data and derives from the data the actuator's accuracy function based upon the observed accuracy of long and short stroke motion commands. The accuracy is described in terms of the rms positioning error (in nanometers) for moves of a given size, regardless of position in the stroke.

关键词： actuator nanometer space instruments accuracy move error

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Opto-mechanical design of primary mirror assembly for free gyro stabilized seeker

Opto-mechanical design of primary mirror assembly for free g...

引用

Conference on current developments in Lens design and optical Systems engineering

作者： Perona, BJ Yarbrough, C Prill, S Raytheon Missile Syst Co Tucson AZ 85710 USA

ISBN: (纸本)0819437387

In Free Gyroscopic Stabilized Seekers, the Primary Minor has the multiple functions of a magnetic rotor, the primary rotating mass and the primary reflector for the optical train. The introduction of rare-earth magnetic alloys to this class of seeker has provided increased flexibility in materials selection, opto-mechanical design and cost of manufacture. Along with superior magnetic properties, the rare-earth alloy Neodymium-Iron-Boron (NdFeB) comes with the undesirable properties of anisotropic CTE, high susceptibility to corrosion and manufacturing challenges. This paper discusses the opto-mechanical design, structural and optical modeling and analysis of a primary mirror assembly utilizing an NdFeB insert with centrifugal, linear acceleration and thermal loading as well as the optical test results, qualification testing of long-term figure stability and validation of the mechanical/magnetic/optical design model.

关键词： opto-mechanical design gyroscope rare-earth magnet

来源：评论

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optical design for Terrestrial Planet Finder

Optical design for Terrestrial Planet Finder

引用

8th Conference on current developments in optical design and optical engineering

作者： Noecker, MC Leitch, J Kopp, G McComas, B Ball Aerosp & Technol Corp Boulder CO 80306 USA

ISBN: (纸本)0819432652

We describe the features of the optical system for Terrestrial Planet Finder, a space-based, cryogenic (35 K) interferometer for direct detection of Earth-type planets around nearby stars. Destructive interference in a stellar interferometer suppresses stellar glare by a factor of several thousand or more, and phase chopping distinguishes planet light from symmetric backgrounds. The mid-infrared (7-20 mu m) is favorable for detecting planetary emission relative to that from the star, and this spectral region also offers important molecular signatures indicative of key atmospheric gases.

关键词： Planets Interferometers Mirrors Nulling interferometry Stars Space telescopes Telescopes Space operations Beam splitters Sensors

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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

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End-to-end compensation of digital-optical imaging systems

End-to-end compensation of digital-optical imaging systems

引用

Conference on current developments in Lens design and optical engineering VII

作者： Robinson, M. Dirk Stork, David G. Ricoh Innovat 2882 Sand Hill RdSuite 115 Menlo Pk CA 94025 USA

ISBN: (纸本)0819463671

Reliable fabrication and assembly of high-quality electro-optical imaging systems is a critical challenge facing electro-optical imaging system manufacturers. optical compensation is one standard approach for minimizing the effects of errors introduced during the manufacture and construction of the optical subsystems. We describe how digital image processing should be considered as a form of compensation when evaluating a complete imaging system. We describe a novel method for digital-optical compensation which jointly adjusts both optical parameters and image processing parameters to maximize end-to-end imaging performance. We verify the superiority of this joint compensation strategy over the traditional sequential compensation through several example imaging systems.

关键词： digital imaging optical design image processing lens testing compensation

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design of three-mirror telescopes via a differential equation method 6

Design of three-mirror telescopes via a differential equatio...

引用

current developments in optical design and engineering VI Conference

作者： Chao, SH Evans, NC Shealy, DL Johnson, RB Hualien Teachers College (Taiwan) Univ. of Alabama/Birmingham (United States) Optical ETC Inc. (United States)

ISBN: (纸本)0819422517

A differential equation method is applied to the design of a three-mirror telescope. The resulting system is mostly free of spherical aberration, coma and astigmatism. From caustic theory and a generalization of the Coddington Equations, the Abbe sine condition and the constant optical path length condition, three coupled differential equations, one for each reflecting surface, are generated. A system which satisfies these conditions will have a high resolution over a wide field of view. Analysis of this application is presented as a comparison to a similar three-mirror telescope system produced by conventional optimization techniques.

关键词： telescope coddington reflecting mirror wide field aplanatic abbe sine anastigmatic differential equations

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Characterization of Feathering of optical Coating

Characterization of Feathering of Optical Coating

引用

Conference on current developments in Lens design and optical engineering XI - and Advances in Thin Film Coatings VI

作者： Buchholz, Chris Krevor, David Rockwell Collins Heads Up Guidance Syst HGS Wilsonville OR 97070 USA

ISBN: (纸本)9780819482822

This paper discusses a method to characterize feathering and determine feathering quality. The characterization is based upon the change of the color coordinate across the transition region. "Feathering" of an optical coating is the gradual taper, without any discernible boundary, from a coated to uncoated region. There can be various reasons why a thin film optical coating may not be applied to the entire surface of a see-through article. Feathering is necessary when the viewer, looking through a transmissive element, is focused on the far-field and would be distracted by a coating boundary which redirects focus to the near field. Done incorrectly, feathering may produce visible artifacts which are ineffective and objectionable to the user. Examples are provided.

关键词： optical coating beamsplitter feather feathering display combiner color coordinate taper

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design and fabrication of imaging optical systems with freeform surfaces

Design and fabrication of imaging optical systems with freef...

引用

Conference on current developments in Lens design and optical engineering Xiii

作者： Zhang Xin Zheng Ligong He Xin Wang Lingjie Zhang Feng Yu Shuqin Shi Guangwei Zhang Binzhi Liu Qiang Wang Tongtong Changchun Inst Opt Key Lab Opt Syst Adv Mfg Technol Changchun 130033 Peoples R China

ISBN: (纸本)9780819492036

Freeform surfaces provide more degrees of freedom for design of optical systems, and enhance the ability of compensation and correction aberrations. Freeform surfaces are of advantage to balance the unsymmetrical aberrations, especially for the wide-field off-axis optical systems. This paper focus on an off-axis reflective optical system, which focal length is 550mm, F# is 6.5 and field of view (FOV) is 76 degrees. The system adopts some freeform surfaces. We discuss the problems we noticed in processes of design, manufacture, measurement and alignment, and the solutions. At last, the periodical research result and the expected performance are given.

关键词： Freeform surfaces aberrations correction off-axis reflective optical system wide FOV

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