The proceedings contain 37 papers. The topics discussed include: current development of advanced optical technology in IOE, CAS;the mechatronic approach to the design of large mirrors and telescopes;new developments i...
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The proceedings contain 37 papers. The topics discussed include: current development of advanced optical technology in IOE, CAS;the mechatronic approach to the design of large mirrors and telescopes;new developments in the precessions process for manufacturing free-form, large-optical, and precision-mechanical surfaces;new solutions for innovative extremely large telescopes;test setup for large size deformable convex mirrors and application to 8m convex secondary mirrors for ELT's;support systems for segmented: an overview;application of steel balls to lens calibration in space solar telescope;CFRP solutions for the innovative telescope design;and properties of Zerodur mirron blanks for extremely large telescopes.
The proceedings contain 27 papers. The topics discussed include: using multi-function components to solve opticaldesign challenges for DUv microlithographic applications;automated synthesis of both the topology and n...
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The proceedings contain 27 papers. The topics discussed include: using multi-function components to solve opticaldesign challenges for DUv microlithographic applications;automated synthesis of both the topology and numerical parameters for seven patented opticallens systems using genetic programming;advances in lenticular lens arrays for visual display;wide field-of-view imaging system using a liquid crystal spatial light modulator;design tools for freeform optics;designing and specifying aspheres for manufacturability;infrared hybrid optics with high broadband efficiency;removing challenges in microlithographic opticaldesign;laser beam filtering by refractive or diffractive microstructures;and a hybrid athermal CCD camera.
We present a purely mechanical means of producing highly concentric spherical lenses at the endfaces of optical fibers. The production process has two stages. First, conical lenses are produced in a grinding process t...
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We present a purely mechanical means of producing highly concentric spherical lenses at the endfaces of optical fibers. The production process has two stages. First, conical lenses are produced in a grinding process that ensures excellent concentricity. Then, the conical lenses are transformed to spherical lenses using a novel process called loose abrasive blasting. The cone grinding is carried out on a microgrinding machine, which has a sophisticated control system that enables the production of precision conical lenses. The blasting is carried out on a diamond blasting machine. Plots showing automatic centering performance of the microgrinding machine and scanning electron microscopy images of the conical and spherical lenses are presented. (c) 2005 Society of Photo-optical Instrumentation Engineers.
We present a purely mechanical means of producing highly concentric spherical lenses at the endfaces of optical fibers. The production process has two stages. First, conical lenses are produced in a grinding process t...
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ISBN:
(纸本)0819454613
We present a purely mechanical means of producing highly concentric spherical lenses at the endfaces of optical fibers. The production process has two stages. First, conical lenses are produced in a grinding process that ensures excellent concentricity. Then, the conical lenses are transformed to spherical lenses using a novel process called loose abrasive blasting. The cone grinding is carried out on a microgrinding machine, which has a sophisticated control system that enables the production of precision conical lenses. The blasting is carried out on a diamond blasting machine. Plots showing automatic centering performance of the microgrinding machine and scanning electron microscopy images of the conical and spherical lenses are presented. (c) 2005 Society of Photo-optical Instrumentation Engineers.
We obtained novel analytic expressions which permit us to realize the opticaldesign of any thick lens, this analysis include both first and exact order design. We employ the conic constant of the first surface to cor...
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We obtained novel analytic expressions which permit us to realize the opticaldesign of any thick lens, this analysis include both first and exact order design. We employ the conic constant of the first surface to correct the marginal spherical aberration. We analyzed both finite and infinite conjugates cases. Examples done with our methodology also show good agreement with commercial opticaldesign programs.
We report on our work on producing liquid crystal switchable modal lenses and their use in a compound lens system in order to produce variable focus/zoom lenses. We describe work on producing a high power lens, and pr...
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We report on our work on producing liquid crystal switchable modal lenses and their use in a compound lens system in order to produce variable focus/zoom lenses. We describe work on producing a high power lens, and present theoretical work on off-axis phase modulation in a liquid crystal lens which is important in order to be able to carry out a complete opticaldesign of a liquid crystal lens.
A historical collection of Corning Tropel optical systems was analyzed with the primary goal of organizing and archiving the designs in a searchable computer database. The analysis of these systems was two-fold: the s...
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A historical collection of Corning Tropel optical systems was analyzed with the primary goal of organizing and archiving the designs in a searchable computer database. The analysis of these systems was two-fold: the system data and documented design procedure were examined from both a technical as well as a historical viewpoint. Items of historical interest included letters and handwritten comments from various well-known designers, computer print outs from early lensdesign programs, and aberration plots and pictures of the system drawn painstakingly by hand. The technical analysis involved entering the system data into a modern day computer analysis package (CODE v) and comparing the performance (in the form of MTFs, field and distortion curves, etc.) with the original performance claimed by each system. One of the most significant findings was the ability to consistently replace obsolete glasses with current glasses, without sacrificing performance. In some cases, it was even possible to reoptimize the system and improve the performance.
Freeform optical surfaces are defined as any non-rotationally symmetric surface or a symmetric surface that is rotated about any axis that is not its axis of symmetry. These surfaces offer added degrees of freedom tha...
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Freeform optical surfaces are defined as any non-rotationally symmetric surface or a symmetric surface that is rotated about any axis that is not its axis of symmetry. These surfaces offer added degrees of freedom that can lead to lower wavefront error and smaller system size as compared to rotationally symmetric surfaces. Unfortunately, freeform optics are viewed by many designers as more difficult and expensive to manufacture than rotationally symmetric optical surfaces. For some freeform surfaces this is true, but a designer has little or no feedback to quantify the degree of difficulty for manufacturing a surface. This paper describes a joint effort by optical Research Associates (ORA) and the Precision engineering Center (PEC) at North Carolina State University to integrate metrics related to the cost and difficulty of manufacturing a surface into the merit function that is used during the design of an optical system using Code v®. By incorporating such information into the merit function, it is possible to balance optical performance and manufacturability early in the design process.
A baseline design for NASA's Terrestrial Planet Finder Coronagraph (TPFC) starlight suppression system (SSS) is described. The design is based on a 8×3.5m elliptical aperture telescope leading to terrestrial ...
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A baseline design for NASA's Terrestrial Planet Finder Coronagraph (TPFC) starlight suppression system (SSS) is described. The design is based on a 8×3.5m elliptical aperture telescope leading to terrestrial planet detection at a minimum angle of ∼4λ/D. The design accommodates classical Lyot coronagraph as well as shaped pupil approaches and includes separate optical paths for two polarizations each with its own deformable mirror control. Critical design challenges and trades are described.
Rayleigh scaling equations for resolution and the control of computer chip critical dimensions (CD) within a finite depth of focus (DOF) have always indicated that resolution is better improved by reductions in wavele...
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Rayleigh scaling equations for resolution and the control of computer chip critical dimensions (CD) within a finite depth of focus (DOF) have always indicated that resolution is better improved by reductions in wavelength of exposure light rather than by increasing the numerical aperture (NA) of the projection optics, particularly as it approaches the physical limit in air of 1.0. However, liquid immersion of the image increases the physical NA limits and presents new opticaldesign challenges, while postponing the necessity for drastic reductions in the wavelength.
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