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

共 444 条记录，以下是181-190 订阅

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Using the toroidal and cylindrical lenses to project the RGB LEDs sources on the lens array with elliptic solid angle calculation for the DLP projector

Using the toroidal and cylindrical lenses to project the RGB...

引用

conference on current developments in lens design and optical engineering XIV

作者： Sun, Wen-Shing Natl Cent Univ Dept Opt & Photon Chungli 32001 Taiwan

We present an asymmetric condenser with an elliptical solid angle distribution and improves system efficiency of 15.5%. The proposed system on the DMD achieves the light efficiency of 63.4% and the average deviation o... 详细信息

ISBN: (纸本)9780819496911

关键词： RGB LEDs DLP projector lens array elliptical solid angle

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Polarization fields for understanding polarization aberrations in optical imaging systems

Polarization fields for understanding polarization aberratio...

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conference on current developments in lens design and optical engineering XIV

作者： Sasian, Jose Univ Arizona Coll Opt Sci Tucson AZ 85721 USA

This paper provides a set of polarization aberration fields that are useful for understanding polarization aberrations in optical imaging systems. The aberration function of a plane symmetric system is used to build t... 详细信息

ISBN: (纸本)9780819496911

关键词： polarization aberrations optical imaging systems

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A study of optical design of zoom optics

A study of optical design of zoom optics

引用

conference on current developments in lens design and optical engineering XIV

作者： Tsai, Cheng-Mu Yen, Chih-Ta Fang, Yi-Chin Chen, Chia-An Natl Kaohsiung First Univ Sci & Technol Coll Engn Dept Mech & Automat Engn 2 Jhuoyue Rd Kaohsiung 811 Taiwan Kun Shan Univ Dept Comp & Commun Tainan 710 Taiwan Natl Formosa Univ Dept Elect Engn Huwei Township 632 Yunlin Taiwan

ISBN: (纸本)9780819496911

This paper proposes a new zoom lens design with intermediate image. The two 3x zoom lenses are independently designed and then cascaded to a 9x zoom lens. The concept of intermediate optics is applied in this paper in order to minimize size of front diameter and overall length. The final layout shows the proposed 9x zoom lens can effectively miniature the front diameter of lens about 44.25%.

关键词： intermediate optics zoom lens optical system design

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design for adjustable optical system of liquid filled lens

Design for adjustable optical system of liquid filled lens

引用

conference on current developments in lens design and optical engineering XIV

作者： Shaw, Dein Hsieh, Hui-An 101 Sect 2Kuang Fu Rd Hsinchu 30013 Taiwan

ISBN: (纸本)9780819496911

In this research, an optical integrated module including a liquid-filled lens, a flexible sensor membrane and a self-adjusted optical compensation component was designed. We studied the optical relationship (which is called compensation function) between the liquid-filled lens and the sensor membrane to make the system has good optical characters. According to compensation function, this module compensates the optical character between lens and sensor membrane to obtain a clear image by adjusting the internal pressure and volume of the liquid in the liquid filled optical system. For a single lens optical system, the curvy sensor membrane has better performance than flat type sensor in off optical axis due to Petzval surface is curved. An optical experiment was set up to measure the performance of the module to prove the idea, and the results show that the module achieves the desired effect.

关键词： liquid-filled lens flexible sensor membrane optical module self-compensation PDMS

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Double micro-prism array design for reducing dispersion on prism-based stereo camera system

Double micro-prism array design for reducing dispersion on p...

引用

conference on current developments in lens design and optical engineering XIV

作者： Sun, Wen-Shing Chu, Pu-Yi Natl Cent Univ Dept Opt & Photon Chungli 32001 Taiwan

We apply a digital camera with two prism arrays to capture a stereo image of the corrected chromatic aberration and distortion. The doublet prisms are used to correct chromatic aberration. The camera distortion with t... 详细信息

ISBN: (纸本)9780819496911

关键词： stereo image two prism arrays chromatic aberration distortion

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Analytic formulas of the aspheric terms for convex-plano and plano-convex aspheric lenses

Analytic formulas of the aspheric terms for convex-plano and...

引用

conference on current developments in lens design and optical engineering XIV

作者： Avendano-Alejo, Maximino Univ Nacl Autonoma Mexico Ctr Ciencias Aplicadas & Desarrollo Tecnol Mexico City 04510 DF Mexico

ISBN: (纸本)9780819496911

We provide analytic formulas for fews aspheric terms either plano-convex or convex-plano aspheric lenses. These formulas are obtained considering an expansion in Taylor's series from exact caustic equation produced by aspheric lenses. A comparison between our method and numerical methods of design are presented, showing a well agreement in order to reduce the spherical aberration.

关键词： Aspheric lenses Monochromatic aberrations Refraction Manganese Geometrical optics lens design Numerical analysis Distortion optical components optical design

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Multiagent System in Automatic Light Power Balance in optical Networks

Multiagent System in Automatic Light Power Balance in Optica...

引用

conference on current developments in lens design and optical engineering XIV

作者： Slapak, Martin Hula, Milislav CESNET Ale Prague 16000 6 Czech Republic

ISBN: (纸本)9780819496911

This article deals with automatic power balancing along an optical line. For optimal transmission of an optical signal it is important to achieve certain parameters such as the signal to noise ratio orchromatic dispersion and also the sufficient output power level of in-line amplifiers. Pump diodes in amplifiers suffer from aging of material and therefore the driving current of pump diodes has to be accordingly increased to achieve the same gain as in the moment when the pump diodes were new. The use of a minimal required driving current leads to the longer lifetime of optical pumps. Therefore an automatic power balance is one of the methods used to achieve these goals.

关键词： Multiagent system automatic power balance gain control

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Theoretical considerations in radiometer design

Theoretical considerations in radiometer design

引用

conference on current developments in lens design and optical engineering XIV

作者： Suarez-Romero, Jose G. Salas-Zuniga, Roberto Inst Tecnol Queretaro Av Tecnol SN Esc Escobedo Queretaro 76000 Qro Mexico Ctr Ingn & Tecnol SC Queretaro 76090 Qro Mexico

ISBN: (纸本)9780819496911

This work considers typical radiometers that measure the radiance of sources or of some surface (due to reflection). The most important thing in a radiometer is its optical cavity, which defines the solid angle of measurement. In case of instruments that use lenses, lens diameter and focal length define the solid angle. Radiometer design takes care that the solid angle subtended by the optical cavity be minor that the solid angle subtended by the source to be measured, however no considerations are taken on the length of the cavity. In this work it is discussed theoretical limitation in the design of radiometers, particularly the influence of radiometer length (the cavity length). Theory of partial coherence is used to obtain the instrument function and to show how the length of the instrument affects measurements.

关键词： Radiometers photometers partial coherence diffraction effects radiometry photometry

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Simultaneous color-mixing and collimation within LED package

Simultaneous color-mixing and collimation within LED package

引用

conference on current developments in lens design and optical engineering XIV

作者： Moreno, Ivan Rodriguez, Nayeli Carlos Basilio, Jose Univ Autonoma Zacatecas Unidad Acad Fis Zacatecas 98060 Mexico

ISBN: (纸本)9780819496911

A compact encapsulating lens is proposed and analyzed, which simultaneously collimates and mixes the tunable light from red, green and blue (RGB) light-emitting diode (LED) chips. Colored LED chips are embedded within a spherical lens, and a section of the sphere that surrounds chips is mirrored with a diffuse reflector. Color light is mixed by multiple total internal reflections (TIRs), the scattering mirror breaks TIR, and light escapes only in a narrow beam in the forward direction. The color distribution, the beam pattern, and efficiency are analyzed by Monte Carlo ray tracing calculations.

关键词： Encapsulating lens Light Projection Mix of Color Illumination Spotlights

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Three dimensional point spread function of a high aperture optical system

Three dimensional point spread function of a high aperture o...

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conference on current developments in lens design and optical engineering XIV

作者： Borovytsky, Volodymyr Chorna, Viktoriia Solovei, Alex Nat Techn Univ Ukraine KPI Dept Opt Engn UA-03056 Kiev Ukraine

ISBN: (纸本)9780819496911

The paper presents the mathematical technique for precise calculation of the three dimensional point spread function (3D PSF) of a high aperture optical system. The proposed technique is based on Huygens-Fresnel principle: a spherical wave at an exit pupil is considered as a numerous set of elementary secondary light sources. They emit spherical coherent electro-magnetic waves. All these waves form a definite distribution of summarized complex amplitudes in a three dimensional space near a focal point. This distribution is used for calculation of the distribution of effective intensity which takes into account the influence of inclined optical beams. The comparison analysis of this approach and the techniques based on multi-dimensional Fourier transforms are discussed.

关键词： point spread function optical system pupil function Fourier transform intensity distribution optical microscopy spatial resolution

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