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1. |
Record Nr. |
UNINA9910420936703321 |
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Titolo |
Media, informação e literacia : rumos e perspectivas / / [edited by] Rita Basílio de Simões, Maria Beatriz Marques, João Figueira |
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Pubbl/distr/stampa |
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Coimbra University Press, 2020 |
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Portugal : , : Coimbra University Press, , 2020 |
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ISBN |
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Descrizione fisica |
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1 online resource (606 pages) : illustrations; digital, PDF file(s) |
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Collana |
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Conferências & Debates Interdisciplinares |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references. |
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Sommario/riassunto |
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Media, information and literacy: directions and perspectives brings together a diverse range of perspectives and voices on the relationship between Media, Information and Literacy, in an attempt to document directions and discuss seemingly triumphant perspectives in the international context and on an interdisciplinary horizon. Taken together, these contributions fuel the bumpy but vital debate about the impact of social and technological change on the concept of literacy and the place of literacy in democratic societies. |
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2. |
Record Nr. |
UNINA9911004765103321 |
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Autore |
Conrady A. E |
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Titolo |
Applied Optics and Optical Design, Part One |
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Pubbl/distr/stampa |
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New York : , : Dover Publications, , 1988 |
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ISBN |
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9780486151229 |
0486151220 |
9781621986492 |
1621986497 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (990 p.) |
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Collana |
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Disciplina |
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Soggetti |
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Lenses -- Design and construction |
Optical instruments -- Design and construction |
Optical instruments |
Optics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di contenuto |
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Title Page; Copyright Page; PREFACE; Table of Contents; INTRODUCTION; CHAPTER I - FUNDAMENTAL EQUATIONS; NUMERICAL CALCULATIONS; GENERAL VALIDITY OF THE STANDARD EQUATIONS; ADDITIONAL COMPUTING FORMULAE; PLANE SURFACES; OPENING A CALCULATION; PARAXIAL RAYS; THEOREM OF LAGRANGE; LONGITUDINAL MAGNIFICATION; NUMERICAL CALCULATIONS (continued); ALTERNATIVE CHECK-METHOD; SIMPLE LENSES; CHAPTER II - SPHERICAL ABERRATION; DISCUSSION OF EQUATION (10); PRIMARY SPHERICAL ABERRATION; SECONDARY AND HIGHER SPHERICAL ABERRATION; ALTERNATIVE EQUATIONS; GRAPHIC REPRESENTATION OF THE ABERRATION |
OTHER MEASURES OF SPHERICAL ABERRATIONOVER- AND UNDER-CORRECTION; THE DISK OF LEAST CONFUSION; Special Memoranda from Chapter II; CHAPTER III - PHYSICAL ASPECT OF OPTICAL IMAGES; THE AIRY SPURIOUS DISK; RESOLVING POWER OF OPTICAL INSTRUMENTS; EFFECT OF IMPERFECTIONS; THE RAYLEIGH LIMIT; OPTICAL TOLERANCES; THE FOCAL RANGE; TOLERANCE FOR PRIMARY SPHERICAL ABERRATION; TOLERANCE FOR ZONAL ABERRATION; |
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RESOLVING POWER IN PRESENCE OF DEFECTS; Special Memoranda from Chapter III; CHAPTER IV - CHROMATIC ABERRATION; OPTICAL GLASS; THE SECONDARY SPECTRUM; PHOTOVISUAL OBJECTIVES |
THE PRINCIPAL TYPES OF ACHROMATISMCHROMATIC ABERRATION OF SEPARATED THIN LENSES; PRIMARY CHROMATIC ABERRATION; CHROMATIC ABERRATION AT FINITE APERTURE; TRIGONOMETRICAL METHODS OF CHROMATIC CORRECTION; CHROMATIC TOLERANCES; CHAPTER V - DESIGN OF ACHROMATIC OBJECT-GLASSES; A. THE PURELY TRIGONOMETRICAL METHOD; B. SOLUTIONS BY ALGEBRAICAL APPROXIMATION; C. HYBRID METHODS OF SOLUTION; USE OF TOLERANCES IN LENS-DESIGN; Special Memoranda from Chapter V; CHAPTER VI - EXTRA-AXIAL IMAGE-POINTS; THE PRIMARY ABERRATIONS OF OBLIQUE PENCILS; GENERAL SOLUTION OF THE PROBLEM |
SUMMATION FOR A COMPLETE CENTRED SYSTEMDISCUSSION OF THE OBLIQUE ABERRATIONS; CHROMATIC ABERRATIONS OF OBLIQUE PENCILS; SUMMARY OF THE DISCUSSION; CALCULATION OF THE SEIDEL ABERRATIONS; THE SEIDEL ABERRATIONS FOR THIN LENSES; FUNDAMENTAL LAWS OF OBLIQUE PENCILS; SYSTEMS OF SEPARATED THIN COMPONENTS; CHAPTER VII - THE OPTICAL SINE THEOREM; APPLICATIONS OF THE SINE THEOREM; DESIGN OF APLANATIC OBJECT-GLASSES; OTHER APPLICATIONS OF THE SINE THEOREM; Special Memoranda from Chapter VII; CHAPTER VIII - TRIGONOMETRICAL TRACING OF OBLIQUE PENCILS; A. TANGENTIAL RAYS |
B. NARROW TANGENTIAL AND SAGITTAL FANS OF RAYSC. SKEW RAYS; D. CLOSE SAGITTAL RAYS; CHAPTER IX - GENERAL THEORY OF PERFECT OPTICAL SYSTEMS; CHARACTERISTIC DATA OF AN OPTICAL SYSTEM; CONJUGATE ANGLES OF CONVERGENCE.; MEASURES OF MAGNIFICATION; THE NODAL POINTS; CHAPTER X - ORDINARY EYEPIECES; HUYGENIAN EYEPIECES; RAMSDEN EYEPIECES; APPENDIX; INDEX |
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Sommario/riassunto |
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""For the optical engineer it is an indispensable work."" - Journal, Optical Society of America""As a practical guide this book has no rival."" - Transactions, Optical Society""A noteworthy contribution,"" - Nature (London)Part I covers all ordinary ray-tracing methods, together with the complete theory of primary aberrations and as much of higher aberration as is needed for the design of telescopes, low-power microscopes and simple optical systems. Chapters: Fundamental Equations, Spherical Aberration, Physical Aspect of Optical Images, Chromatic Aberration, Design of Achromatic Object-Glass |
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