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[null,"1.","Record Nr.",null,"UNINA9911004812903321"]
[null,null,"Autore",null,"Mahajan Virendra N"]
[null,null,"Titolo",null,"Ray geometrical optics / / Virendra N. Mahajan"]
[null,null,"Pubbl/distr/stampa",null,"Bellingham, Wash., : SPIE Optical Engineering Press, 1998"]
[null,null,"ISBN",null,"1-61583-706-X"]
[{"$nulls":4},"0-8194-7879-2"]
[null,null,"Descrizione fisica",null,"1 online resource (500 p.)"]
[null,null,"Collana",null,"Optical imaging and aberrations ; ; pt. 1"]
[null,null,"Disciplina",null,"621.36"]
[null,null,"Soggetti",null,"Aberration"]
[{"$nulls":4},"Imaging systems"]
[{"$nulls":4},"Geometrical optics"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and indexes."]
[null,null,"Nota di contenuto",null,"Chapter 1: Gaussian optics -- Introduction -- Foundations of geometrical optics -- Fermat's principle -- Laws of geometrical optics -- Optical path lengths of neighboring rays -- Malus-Dupin theorem -- Hamilton's point characteristic function and direction of a ray -- Gaussian imaging -- Introduction -- Sign convention -- Spherical refracting surface -- Gaussian imaging equation -- Focal lengths and refracting power -- Magnifications and Lagrange invariant -- Graphical imaging -- Newtonian imaging equation -- Thin lens -- Gaussian imaging equation -- Focal lengths and refracting power -- Undeviated ray -- Magnifications and Lagrange invariant -- Newtonian imaging equation -- Refracting systems -- Cardinal points and planes -- Gaussian imaging, focal lengths, and magnifications -- Nodal points -- Newtonian imaging equation -- Afocal systems -- Spherical reflecting surface (spherical mirror) -- Gaussian imaging equation -- Focal length and reflecting power -- Magnifications and Lagrange invariant -- Graphical imaging -- Newtonian imaging equation -- Paraxial ray tracing -- Refracting surface -- Thin lens -- Two thin lenses -- Thick lens -- Reflecting surface (mirror) -- Two-mirror system -- Catadioptric system: thin lens-mirror combination -- Two-ray Lagrange invariant -- Matrix approach to paraxial ray tracing and Gaussian optics -- Introduction -- System matrix -- Conjugate matrix -- System matrix in terms of Gaussian parameters -- Gaussian imaging equations -- References -- Problems."]
[{"$nulls":4},"Chapter 2: Radiometry of imaging -- Introduction -- Stops, pupils, and "]
[{"$nulls":4},"vignetting -- Introduction -- Aperture stop, and entrance and exit pupils -- Chief and marginal rays -- Vignetting -- Size of an imaging element -- Telecentric aperture stop -- Field stop, and entrance and exit windows -- Radiometry of point sources -- Irradiance of a surface -- Flux incident on a circular aperture -- Radiometry of extended sources -- Lambertian surface -- Exitance of a Lambertian surface -- Radiance of a tube of rays -- Irradiance by a Lambertian surface element -- Irradiance by a Lambertian disc -- Radiometry of point object imaging -- Radiometry of extended object imaging -- Image radiance -- Pupil distortion -- Image irradiance: aperture stop in front of the system -- Image irradiance: aperture stop in back of the system -- Telecentric systems -- Throughput -- Condition for uniform image irradiance -- Concentric systems -- Photometry -- Photometric quantities and spectral response of the human eye -- Imaging by a human eye -- Brightness of a Lambertian surface -- Observing stars in the daytime -- Appendix: Radiance theorem -- References -- Problems."]
[{"$nulls":4},"Chapter 3: Optical aberrations -- Introduction -- Wave and ray aberrations -- Definitions -- Relationship between wave and ray aberrations -- Defocus aberration -- Wavefront tilt -- Aberration function of a rotationally symmetric system -- Rotational invariants -- Power-series expansion -- Explicit dependence on object coordinates -- No explicit dependence on object coordinates -- Zernike circle-polynomial expansion -- Relationships between coefficients of power-series and -- Zernike-polynomial expansions -- Observation of aberrations -- Primary aberrations -- Interferograms -- Conditions for perfect imaging -- Imaging of a 3-D object -- Imaging of a 2-D transverse object -- Imaging of a 1-D axial object -- Linear coma and the sine condition -- Optical sine theorem -- Linear coma and offense against the sine condition -- Appendix A: Degree of approximation in eq. (3-11) -- Appendix B: Wave and ray aberrations: alternative definition and derivation -- References -- Problems."]
[{"$nulls":4},"Chapter 4: Geometrical point-spread function -- Introduction -- Theory -- Application to primary aberrations -- Spherical aberration -- Coma -- Astigmatism and field curvature -- Distortion -- Balanced aberrations for minimum spot sigma -- Spot diagrams -- Aberration tolerance and golden rule of optical design -- References -- Problems."]
[{"$nulls":4},"Chapter 5: Calculation of primary aberrations -- Refracting systems -- Introduction -- Spherical refracting surface with aperture stop at the surface -- On-axis point object -- Off-axis point object -- Aberrations with respect to Petzval image point -- Aberrations with respect to Gaussian image point -- Spherical refracting surface with aperture stop not at the surface -- On-axis point object -- Off-axis point object -- Aplanatic points of a spherical refracting surface -- Conic refracting surface -- Sag of a conic surface -- On-axis point object -- Off-axis point object -- General aspherical refracting surface -- Series of coaxial refracting (and reflecting) surfaces -- General imaging system -- Petzval curvature and corresponding field curvature wave aberration -- Relationship among Petzval curvature, field curvature, and astigmatism -- Wave aberration coefficients -- Aberration function in terms of Seidel sums or Seidel coefficients -- Effect of change in aperture stop position on the aberration function -- Change of peak aberration coefficients -- Illustration of the effect of aperture-stop shift on coma and distortion -- Aberrations of a spherical refracting surface with aperture stop not at the surface obtained from those with stop at the surface -- Thin lens -- Imaging relations -- Thin lens with spherical surfaces and aperture stop at the lens -- Petzval surface -- Spherical aberration and coma -- Aplanatic lens -- Thin lens with conic "]
[{"$nulls":4},"surfaces -- Thin lens with aperture stop not at the lens -- Field flattener -- Imaging relations -- Aberration function -- Plane-parallel plate -- Introduction -- Imaging relations -- Aberration function -- Chromatic aberrations -- Introduction -- Single refracting surface -- Thin lens -- General system: surface-by-surface approach -- General system: use of principal and focal points -- Chromatic aberrations as wave aberrations -- Symmetrical principle -- Pupil aberrations and conjuage-shift equations -- Introduction -- Pupil aberrations -- Conjugate-shift equations -- Invariance of image aberrations -- Simultaneous correction of aberrations for two or more object positions -- References -- Problems."]
[{"$nulls":4},"Chapter 6: Calculation of primary aberrations: reflecting and catadioptric systems -- Introduction -- Conic reflecting surface -- Conic surface -- Imaging relations -- Aberration function -- Petzval surface -- Spherical mirror -- Aberration function and aplanatic points for arbitrary location of aperture stop -- Aperture stop at the mirror surface -- Aperture stop at the center of curvature of mirror -- Paraboloidal mirror -- Catadioptric systems -- Introduction -- Schmidt camera -- Bouwers-Maksutov camera -- Beam expander -- Introduction -- Gaussian parameters -- Aberration contributed by primary mirror -- Aberration contributed by secondary mirror -- System aberration -- Two-mirror astronomical telescopes -- Introduction -- Gaussian parameters -- Petzval surface -- Aberration contributed by primary mirror -- Aberration contributed by secondary mirror -- System aberration -- Classical Cassegrain and Gregorian telescopes -- Aplanatic Cassegrain and Gregorian telescopes -- Afocal telescope -- Couder anastigmatic telescopes -- Schwarzschild telescope -- Dall-Kirkham telescope -- Astronomical telescopes using aspheric plates -- Introduction -- Aspheric plate in a diverging object beam -- Aspheric plate in a converging image beam -- Aspheric plate and a conic mirror -- Aspheric plate and a two-mirror telescope -- References -- Problems."]
[{"$nulls":4},"Chapter 7: Calculation of primary aberrations: perturbed optical systems -- Introduction -- Aberrations of a misaligned surface -- Decentered surface -- Tilted surface -- Despaced surface -- Aberrations of perturbed two-mirror telescopes -- Decentered secondary mirror -- Tilted secondary mirror -- Decentered and tilted secondary mirror -- Despaced secondary mirror -- Fabrication errors -- Refracting surface -- Reflecting surface -- System errors -- Error tolerance -- References -- Problems -- Bibliography -- Index."]
[null,null,null,"Sommario/riassunto","This book discusses the characteristics of a diffraction image of an incoherent or a coherent object formed by an aberrated imaging system. Numerical results in aberrated imaging have been emphasized to maximize the practical use of the material. This new, second printing includes a number of updates and corrections to the first printing. Beginning with a description of the diffraction theory of image formation, the book describes both aberration-free and aberrated imaging by optical systems with circular, annular, or Gaussian pupils. As in part I, the primary aberrations are emphasized. Their effects on Strehl, Hopkins, and Struve ratios are discussed in detail. The balanced aberrations are identified with Zernike polynomials appropriate for each type of system. Imaging in the presence of random aberrations is also discussed that includes the effects of image motion and propagation through atmospheric turbulence. Each chapter ends with a set of practical problems."]
[null,"2.","Record Nr.",null,"UNINA9910136207503321"]
[null,null,"Autore",null,"Fidelman Mark"]
[null,null,"Titolo",null,"Socialized! : how the most successful businesses harness the power of social / / by Mark Fidelman"]
[null,null,"Pubbl/distr/stampa",null,"Boca Raton, FL : , : Routledge, an imprint of Taylor and Francis, , [2016]"]
[{"$nulls":4},"©2014"]
[null,null,"ISBN",null,"9781315230009"]
[{"$nulls":4},"1315230003"]
[{"$nulls":4},"9781937134440"]
[{"$nulls":4},"193713444X"]
[{"$nulls":4},"9781351860758"]
[{"$nulls":4},"1351860755"]
[null,null,"Edizione",null,"[1st edition]"]
[null,null,"Descrizione fisica",null,"1 online resource (xvi, 271 pages) : illustrations"]
[null,null,"Disciplina",null,"658.8/72"]
[null,null,"Soggetti",null,"Business networks - Computer network resources"]
[{"$nulls":4},"Social media - Marketing"]
[{"$nulls":4},"Strategic planning"]
[{"$nulls":4},"Online social networks"]
[{"$nulls":4},"Business enterprises - Computer networks"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","\"The social century series\"--Cover."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references (pages [255]-256) and index."]
[null,null,"Nota di contenuto",null,"chapter It’s Now or Never -- chapter GREETER Community Employees Members ROLE -- NURTURER DIPLOMAT Mother Colin Theresa Powell -- chapter Step 3: Diagnose and Assess the Gaps -- chapter Tips for a Great Presentation and to Receive Plan Approval -- chapter SocialBusinessMaturityModel -- chapter Why Culture Is Important to Building a Social Business -- chapter Question 4: Which Philosophy Dominates Our Quality Strategies? -- chapter TYPESOFBUSINESSCULTURE -- chapter How Do We Change the Culture? -- chapter Rule 1: Let Employees Know It’s Okay to Fail -- chapter INTERNAL COLLABORATION CROWDSOURCING CONNECTING -- chapter Requirement 7: Refocus Human Resources on Human Experience -- chapter Why Enterprises Need an Internal Social Business Strategy and Social Platform -- chapter Organizational Benefits: A More Adaptive Workforce BenefitsConsistentOverTime -- chapter Poor Technology Integration -- chapter The Culture Isn’t Mature Enough to Support It -- "]
[{"$nulls":4},"chapter Build Incentives into the Social Initiatives -- chapter Who Is Involved with External Social Business? -- chapter Building the Digital Network Through Community -- chapter Your Digital Network Is Both a Map and a Garden -- chapter If Lehman Had Been a “Social Business” Could It Have Been Saved? -- chapter Old Way: Workplace = Fixed Location/Fixed Time -- chapter Analytics: Monitor, Measure, Adapt -- chapter Create a Technology Adoption Program -- chapter 2 Build or Join an External Community -- chapter 6 Become Your Own Media Publisher -- chapter 7 Replace Traditional Marketing with Content Marketing -- chapter 2 3 % 2 8 % 2 9 % 7 7 % 7 2 % 7 1 % -- chapter Preparing for the New Workforce’s “Digital Natives” -- chapter Why Recruiters Can No Longer Settle for “Business-As-Usual” -- chapter JETBLUE : VISUALIZATIONSOFREPRESENTATIVEPOSTS -- chapter UNITEDAIRLINES : JETBLUE : VISUALIZATIONSOFREPRESENTATIVEPOSTS -- chapter Jet Blue Sentiment Analysis Positive -- chapter United Airlines Sentiment Analysis Positive -- chapter How to Connect Product to Influencers and Influencers to Customers -- chapter Darwin’s Social Funnel -- chapter Shell Oil and Greenpeace Lessons Learned -- chapter Becoming SOCIALIZED! -- chapter Endnotes -- chapter 2 Chapter 2 -- chapter Acknowledgments."]
[null,null,null,"Sommario/riassunto","Most companies today realize the imperative to connect with their customers, employees, and partners through social technologies -Facebook, Twitter, Google+, YouTube, and elsewhere. But a huge challenge is still in the way: how to build programs and teams for accomplishing all that. While organizations have been fixated on how to use the latest social tool, they've lost sight of how to create a talent pool capable of adjusting to the next wave of technology around the corner. For corporations to successfully transform into social business enterprises they must shift the focus from computers and tools to developing skills and attitudes around technology. Socialized! represents a \"playbook\" on how to create such a high-performing social enterprise. Filled with clear strategies and real-life stories from visionaries and change makers, the book is designed to help leaders motivate employees throughout the organization to adopt a \"social\" mindset, ensuring success against the competition."]