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

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Co-extruded Multilayer Films for High Capacity optical Data Storage

Co-extruded Multilayer Films for High Capacity Optical Data ...

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Conference on current developments in lens design and optical engineering XIII

作者： Christenson, Cory W. Ryan, Chris Valle, Brent Saini, Anuj Lott, Joseph Johnson, Jack Schiraldi, David Weder, Christoph Baer, Eric Singer, Kenneth D. Shan, Jie Case Western Reserve Univ Dept Phys Cleveland OH 44106 USA

ISBN: (纸本)9780819492036

New approaches for optical data storage (ODS) applications are needed to meet the future requirements of applications in multimedia, archiving, security, and many others. Commercial data storage technologies are moving to three-dimensional (3D) materials, but the capacity is limited by the fabrication cost and the number of layers that can be addressed using the reflection-based storage mechanism. We demonstrate here storage systems based on co-extrusion of multilayer (ML) films that can overcome these problems. The organic roll-to-roll films produced can easily be produced hundreds of meters in length, in a far simpler and cheaper manner than current manufacturing methods such as spin coating and lamination. The medium consists of alternating active and buffer layers, and data storage is demonstrated by writing images in 23 layers of 78 mu m thick films by fluorescence (FL) quenching of an organic dye. The areal data resolution is at the diffraction limit of the CW Blu-ray (BR) laser employed, and the co-extrusion technique allows for small layer spacings, leading to a total bit density 1.2 Tb/cm(3). We anticipate materials already demonstrated successful for 3D ODS will be adapted to this technique, as well as new systems developed, to take full advantage of this medium.

关键词： optical data storage extrusion photonics organic chromophore organic polymer photobleaching

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Investigation of the optical and Structural Properties of WO₃ Thin Films with Different Sputtering Power Supplies

Investigation of the Optical and Structural Properties of WO...

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Conference on current developments in lens design and optical engineering XIII

作者： Chen, Hsi-Chao Jan, Der-Jun Chen, Chien-Han Huang, Kuo-Ting Luo, Yu-Siang Chen, Jia-Min Natl Yunlin Univ Sci & Technol Grad Sch Optoelect Yunlin 64002 Taiwan

ISBN: (纸本)9780819492036

The purpose of this research was to investigate the optical and structural properties of tungsten oxide (WO3) thin films deposited with three different sputtering power supplies: direct current (DC), DC pulse and radio frequency (RF). These WO3 thin films were deposited on ITO glass and silicon substrate with different gas ratios of oxygen and argon (O-2/Ar ratio). WO3 thin film is the role of the electrochromic window was resulted from the advantages of large variation in optical density, high response efficiency, no toxicity and low cost. The experimental results showed that optical intensity increased with the increasing of O-2/Ar ratio and all films have the 950cm(-1) peak which the bonding of W+6=O in Raman spectra. Hence, the O-2/Ar ratio was changed from 0.4 to 0.8 to study the ability of coloring and bleaching for the three different power supplies. Anyways, the WO3 thin films had the best electrochromic property at the O-2/Ar ratio of 0.7, 0.6 and 0.6 for DC, DC pulse, and RF, respectively. The transmittances could be over 75% for all films at as-deposited and the deposition rates were between 0.8 and 0.1 angstrom s(-1). Simultaneously, the transmittance variations (Delta T) were 51%, 57% and 53% for DC, DC pulse, and RF power sources at wavelength of 550 nm, respectively. The coloration ability of WO3 thin film deposition with power supply of DC pulse was better than that of the DC and RF.

关键词： Tungsten oxide (WO3) direct current (DC) magnetron sputtering pulsed DC sputtering radio frequency (RF) sputtering Raman spectra

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design and fabrication of the near-ultraviolet birefringent Solc filter for the NASA IRIS solar physics mission

Design and fabrication of the near-ultraviolet birefringent ...

引用

Conference on current developments in lens design and optical engineering XIII

作者： Berger, Thomas Mudge, Jason Holmes, Buck Searcy, Paul Wuelser, Jean-Pierre Lemen, James Title, Alan Adv Technol Ctr Palo Alto CA 94304 USA

ISBN: (纸本)9780819492036

The NASA Interface Region Imaging Spectrograph (IRIS) mission is a Small Explorer (SMEX) satellite mission designed to study plasma dynamics in the "interface region" between the Sun's chromosphere and corona with high spatial, spectral, and temporal resolution. The primary instrument is a dual Czerny-Turner spectrograph fed by a 20-cm Cassegrain telescope measuring near-and far-ultraviolet (NUV, FUV) spectral lines in the ranges 133-141 nm and 278-283 nm. To determine the position of the slit on the solar disk, a slit-jaw imaging system is used. The NUV slit-jaw imaging system produces high spatial resolution images at two positions in the Mg II 280 nm spectral line complex using a birefringent Solc filter with two wide-band interference pre-filters for spectral order selection. The Solc filter produces a 0.36 nm full-width at half-maximum (FWHM) filter profile with low sidelobes and a peak transmission of 15% at 279.6 nm. The filter consists of two "wire grid'' polarizers surrounding 8 quartz waveplates configured in a modified Solc "fan" rotational pattern. The elements are optically coupled using DC200 silicon-based grease. The NUV Solc filter is sealed in a windowed cell to prevent silicon contamination of the FUV channel. The design of the sealed cell and assembly of the filter into the cell were among the most challenging optomechanical aspects of the IRIS spectrograph system.

关键词： Optics imaging birefringent filter near-ultraviolet far-ultraviolet satellite systems solar spectrum

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Advanced optical design for DNA sequencing systems

Advanced optical design for DNA sequencing systems

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Conference on current developments in lens design and optical engineering XII/Advances in Thin Film Coatings vii

作者： Sobolev, Kirill Joobeur, Adel Uhrich, Craig Aziz, David ASML (United States) Complete Genomics Inc. (United States) Midbar West Inc. (United States)

ISBN: (纸本)9780819487384

Recent advances in DNA sequencing techniques require the development of high NA immersion microscope systems with large field-of-view, increased resolution and very tight distortion correction. This paper discusses the optical design and tolerance analysis of a NA 1.0 immersion microscope system with a field of view over 1 mm, which is to be used for four-color fluorescence spectroscopy. The microscope system includes an immersion objective lens and four tube lenses, and is corrected for a wide wavelength range from 490 nm to 712 nm. We will discuss critical aspects of designing this kind of optical system, including special glass selection required for chromatic correction.

关键词： DNA sequencing high-end microscope system lens design optical engineering

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Progress in the SMS design method for imaging optics

Progress in the SMS design method for imaging optics

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Conference on current developments in lens design and optical engineering XII/Advances in Thin Film Coatings vii

作者： Lin, Wang Benitez, Pablo Minano, J. C. Infante, Jose Biot, Guillermo Univ Politecn Madrid CEDINT E-28040 Madrid Spain

ISBN: (纸本)9780819487384

In this work, two SMS algorithms are presented for an objective design with different selected ray-bundles: three meridian ray-bundles (3M) and one meridian and two skew ray-bundles (1M-2S), the latter from pin hole point of view, provides a better sampling of the phase space. Results obtained with different algorithms will be compared.

关键词： SMS method telephoto lens Meridian ray-bundle Skew ray-bundle imaging system

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Development of multi-spectral lenses for thermal imaging technique

Development of multi-spectral lenses for thermal imaging tec...

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Conference on current developments in lens design and optical engineering XII/Advances in Thin Film Coatings vii

作者： Bezdidko, Sergey N. Morozova, Elena, I Roy, Yuri A. Open Joint Stock Co Res & Prod Corp Precis Syst & Instruments Moscow Russia

ISBN: (纸本)9780819487384

The modern level of development of optoelectronic devices requires the creation of optoelectronic devices, providing maximum information content in different weather conditions, day and night. The solution to this problem is possible only through the creation of optoelectronic devices operating in various ranges of the optical spectrum simultaneously (multi-spectral electro-optical devices). The report presents the results of work on the creation of thermal lenses, working simultaneously in two regions of the spectrum of 3-5 microns and 8-12 microns, shows the results of the specific development of such lenses and their aberration characteristics.

关键词： lens deign IR high-speed infrared lenses malty-spectral range

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optical design of the focal adjustable flashlight based on a power white-LED

Optical design of the focal adjustable flashlight based on a...

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Conference on current developments in lens design and optical engineering XII/Advances in Thin Film Coatings vii

作者： Cai, Jhih-You Lo, Yi-Chien Sun, Ching-Cherng Natl Cent Univ Dept Opt & Photon Inst Lighting & Display Sci Taipei Taiwan

ISBN: (纸本)9780819487384

In the paper, we design a focal adjustable flashlight, which can provide the spotlight and the wide-angle illumination in different modes. For most users, they two request two illumination modes. In such two modes, one is high density energy of the light pattern and the other is the uniform light pattern in a wide view field. In designing the focal adjustable flashlight, we first build a precise optical model for the high-power LED produced by CREE Inc. in mid-field verification to make sure the accuracy of our simulation. Typically, the lens is useful to be the key component of the adjustable flashlight, but the optical efficiency is low. Here, we introduce a concept of so-called total internal refraction (TIR) lens into the design of flashlight. By defocusing the TIR lens, the flashlight can quickly change the beam size and energy density to various applications. We design two segments of the side of the TIR lens so that they can be applied to the two modes, and the flashlight provides a high optical efficiency for each mode. The illuminance of the center of light pattern at a distance of 2 m from the lamp is also higher than using the lens in the spotlight and wide-angle illumination. It provides good lighting functions for users.

关键词： Spotlight Wide-angle illumination LED TIR lens

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Development and Experimental Verification of an Intraocular Scattering Model

Development and Experimental Verification of an Intraocular ...

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Conference on current developments in lens design and optical engineering XII/Advances in Thin Film Coatings vii

作者： Jiang, Chong-Jhih Jhong, Tian-Siang Chen, Yi-Chun Sun, Ching-Cherng Natl Cent Univ Dept Opt & Photon Jhongli 320 Taiwan

ISBN: (纸本)9780819487384

An intraocular scattering model was constructed in human eye model and experimentally verified. According to the biometric data, the volumetric scattering in crystalline lens and diffusion at retina fundus were developed. The scattering parameters of cornea, including particle size and obscuration ratio, were varied to make the veiling luminance of the eye model matching the CIE disability glare general formula. By replacing the transparent lens with a cataractous lens, the disability glare curve of cataracts was generated and compared with that of transparent lenses. The MTF of the intraocular scattering model showed nice correspondence with the data measured by a double-pass experiment.

关键词： intraocular scattering volumetric scattering veiling luminance disability glare cataractous lens double pass

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design of a free-form lens system for short distance projection

Design of a free-form lens system for short distance project...

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Conference on current developments in lens design and optical engineering XII/Advances in Thin Film Coatings vii

作者： Yang, Bo Lu, Kan Zhang, Wei Dai, Fujian Shanghai Univ Sci & Technol Shanghai Key Lab Contemporary Opt Syst Sch Opt Elect & Comp Engn Shanghai 200093 Peoples R China Zhejiang Sunny Opt Co Ltd R&D Dept Yuyao 315400 Zhejiang Peoples R China

ISBN: (纸本)9780819487384

A free-form lens system design is proposed for short distance projection. Free-form surface shape and non-rotational symmetrical structure provide us more freedoms for optimization. The catadioptric structure is also used to reduce the overall length of the whole system. The designed projector lens system consists of two parts. The first part is a rotationally symmetrical lens system which corrects the basic aberrations. The second part contains a free-form lens and a reflector which correct the distortion and other aberrations. We achieve 55inch projected image size at a display screen which is 300mm away from the lens system. The maximum distortion for all fields at all distances is less than 3%.

关键词： optical engine Projection lens Free-form Catadioptric Least-square fitting

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Progressive addition lens design by optimizing NURBS surface

Progressive addition lens design by optimizing NURBS surface

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Conference on current developments in lens design and optical engineering XII/Advances in Thin Film Coatings vii

作者： Liu, Yen-Liang Hsu, Wei-Yao Cheng, Yuan-Chieh Su, Guo-Dong Natl Taiwan Univ Grad Inst Photon & Optoelect 1Sec 4Roosevelt Rd Taipei 10617 Taiwan Natl Appl Res Labs Instrument Technol Res Ctr Hsinchu 300 Taiwan

ISBN: (纸本)9780819487384

Progressive addition lenses (PAL) are used to compensate presbyopia, which is induced by losing accommodation of elder eyes. These eyes need different optical power provided by eye glasses while watching objects at different distance. A smaller optical power is required in further distance and a larger one in nearer zone. A progressive addition lens can provides different power requirements in one piece of lens. This paper introduces a whole process of PAL production, from design, fabrication, to measurement. The PAL is designed by optimizing NURBS surface. Parameters of merit function are adjusted to design lenses with different specifications. The simulation results confirm that the power distributes as expected and cylinders are controlled under an acceptable level. Besides, sample lenses have been produced by injecting polycorbonate to the molds. Finally, Ultra Accuracy 3D Profilemeter is used to measure the sample PALs. Practical examinations shows that our designs are achievable and feasible in practice use.

关键词： progressive addition lens NURBS precision machining ultrahigh accurate 3 dimensional profilemeter UA3P

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