Kohärentes Licht Wirkung

Optical Microscopy.  Encyclopedia of Condensed Matter Physics: 175-182 (2005).  A thorough review of microscope system optical components, including light sources, condensers, filters, objectives, eyepieces, the stage, stand, resolution, and depth of field. Also covered are various imaging modes, such as brightfield, oblique illumination, darkfield, polarized light, and DIC microscopy.

Choosing objective lenses: The importance of numerical aperture and magnification in digital optical microscopy.  Biological Bulletin 195: 1-4 (1998).  A comprehensive discussion of microscope objectives focused on the critical aspects of objectives for imaging. Included are basics of image formation and an overview of objectives for widefield and confocal fluorescence microscopy.

Kohärenz einfach erklärt

Optical Microscopy  Encyclopedia of Imaging Science and Technology 2:1106-1140 (2002).  A thorough review of microscope optical systems and contrast-enhancing techniques. Eyepieces, condensers, and objectives are discussed in detail, as are finite and infinity optical systems. Included contrast techniques are phase, DIC, polarized light, Hoffman modulation contrast, and fluorescence.

Kohärentes Licht Laser

Proper alignment of the microscope.  Methods in Cell Biology 56: 135-146 (1998).  Addressed in this book chapter are the key components of optical microscopes and alignment for Köhler illumination. Among the topics discussed are the light source and collector, diffusers, condensers, stages, objectives, nosepiece, tube lens, eyepieces, and video adapters.

Kohärenz Beispiele

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Zeitliche und räumliche Kohärenz

Contrast is the difference in luminance or color that makes an object visible against a background of different luminance or color. The human visual system ...

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Als Kohärente Strahlung (engl.: coherent radiation) bezeichnet man in den Naturwissenschaften elektromagnetische Wellen, die hinsichtlich ihrer räumlichen und zeitlichen Ausbreitung eine feste Phasenbeziehung haben. Kohärente Strahlung wird von Lasern, Masern und Synchrotrons erzeugt.

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Microscopy overview.  Encyclopedia of Analytical Science: 32-41 (2005).  The authors provide a comprehensive review of all phases of the optical microscope. Addressed are lenses, magnification, simple and compound microscopes, numerical aperture, illumination, reflected light microscopy, diffraction, resolution, aberrations, contrast, confocal microscopy, and limitations of the microscope.

Deep depth of field. Set your f stop to a high number (for example, f/11). This will narrow your aperture, and you will let very little light into the lens. To ...

Räumliche Kohärenz

Das Konzept der kohärenten Strahlung kann auch auf Teilchenströme wie z. B. einen Elektronenstrahl angewendet werden, da die Teilchen auch Wellencharakter haben, nicht aber auf einzelne Teilchen, da diese durch Wellenpakete repräsentiert werden.

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Character Limit 50 ... This large, unmounted Fresnel lens is approx. 11" square and is 1/16" thick with approximately 50 lines per inch. Frame shown is a ...

Basic principles of microscope objectives.  BioTechniques 33: 772-781 (2002).  The authors describe the properties of microscope objectives, including resolution and numerical aperture, effects of design on magnification factors, correction for various degrees of aberration, infinity optical systems, and oil immersion fundamentals.

Kohärenz Psychologie

3mm Black Spacer with M3 Hole (10) ... RECOMMEND A FRIEND. Please complete the fields below to send your friend a link to this product. Your friend will receive ...

A Spott · 2016 · 169 — The first quantum cascade lasers on silicon emitting 4.8 μm light, integrated with silicon-on-nitride-on-insulator (SONOI) waveguides, and operating in pulsed ...

Microscope Basics.  Methods in Cell Biology 81: 1-10 (2007).  Drs. Sluder and Nordberg review finite and infinity microscope optical systems, objectives (including mixing and matching), coverslip selection, empty magnification, camera pixel number and resolution, mounting cameras on the microscope, and many of the basic fundamentals of digital cameras.

Zeitliche Kohärenz

The development of the microscope objective.  Journal of the Optical Society of America 33: 123-128 (1943).  Largely of historical interest, this review describes the invention of the microscope, early developments in lens design, correction for chromatic aberration, increasing numerical aperture, immersion objectives, and early progress in the design of apochromatic objectives.

The microscope optical train typically consists of an illuminator (including the light source and collector lens), a condenser, specimen, objective, eyepiece, and detector, which is either some form of camera or the observer's eye. Research-level microscopes also contain one or more of several light-conditioning devices that are often positioned between the illuminator and condenser, and a complementary detector or filtering device that is inserted between the objective and the eyepiece or camera. The conditioning device(s) and detector work together to modify image contrast as a function of spatial frequency, phase, polarization, absorption, fluorescence, off-axis illumination, and/or other properties of the specimen and illumination technique. Even without the addition of specific devices to condition illumination and filter image-forming waves, some degree of natural filtering occurs with even the most basic microscope configuration.

The compound microscope: Optical tube length or parfocalization?  European Journal of Physics 26: 1101-1105 (2005).  A theoretical study of standardized distances in compound microscopes. The authors examine the optical tube length with regards to requirements of parfocalization and discuss the German and Japanese industry standards employed for standardization of specimen-to-intermediate image distance.

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Microscopy and Micrometry  Methods in Microbiology 5: 1-103 (1971).  A comprehensive 100-page review on all aspects of microscopy, including light and color, magnification, Abbe theory, image formation, resolution, depth of focus, objectives, eyepieces, and condensers, and configuration for illumination. Phase contrast is described in detail as are making measurements with stage micrometers and reticules.

Das Okular ist der Teil des Mikroskops, der das vom Objektiv des Mikroskops erzeugte Bild so vergrößert, dass es vom menschlichen Auge gesehen werden kann.