Most people chose this as the best definition of etendue: (physics) A property of t... See the dictionary meaning, pronunciation, and sentence examples. Recherche - Solution. Lettres connues et inconnues Entrez les lettres connues dans l'ordre et remplacez les lettres inconnues par un espace, un point, une virgule ou une étoile. Esatti: 93. 3. As shown below, etendue is conserved as light travels through free space and at refractions or reflections. Solution Longueur; git: 3 lettres: Qu'est ce que je vois? 67 synonymes d'Étendu ont été trouvés. With a SensagentBox, visitors to your site can access reliable information on over 5 million pages provided by Sensagent.com. This expression can now be written as. Recherche - Solution. Sujet et définition de mots fléchés et mots croisés ⇒ VASTE ÉTENDUE sur motscroisés.fr toutes les solutions pour l'énigme VASTE ÉTENDUE. Risultati: 93. It may not have been reviewed by professional editors (see full disclaimer). According to the definition above, the etendue of the light crossing dΣ towards dS is given by: where is the solid angle defined by area dS at area dΣ. | Suggestion de solution pour The French word for the optical property is étendue géométrique, meaning "geometrical extent". Sujet et définition de mots fléchés et mots croisés ⇒ DÉTENDU sur motscroisés.fr toutes les solutions pour l'énigme DÉTENDU. Borrowed from French étendue (“area, expanse; size; extent, range, scale”), short for étendue géométrique (“geometric extent”). In base al termine ricercato questi esempi potrebbero contenere parole colloquiali. From the source point of view, it is the area of the source times the solid angle the system's entrance pupil subtends as seen from the source. If the optic were a collimator instead of a concentrator, the light direction is reversed and conservation of etendue gives us the minimum aperture, S, for a given output full angle 2α. It may also be seen as a volume in phase space.. From the source point of view, it is the area of the source times the solid angle the system's entrance pupil subtends as seen from the source. The maximum possible concentration is then[1][2], In the case that the incident index is not unity, we have, and in the best-case limit of , this becomes. Solutions pour: restes étendu - mots fléchés et mots croisés Sujet Solution Lettres Chance Options restes étendu GIS 3 trouvé Sujets similaires. [1] Etendue as volume in phase space is commonly used in nonimaging optics. Définition ou synonyme. The web service Alexandria is granted from Memodata for the Ebay search. From the system point of view, the etendue is the area of the entrance pupil times the solid angle the source subtends as seen from the pupil. However, etendue may not decrease and energy flux may not increase and, therefore, basic radiance may not increase. English thesaurus is mainly derived from The Integral Dictionary (TID). Exemple: "P ris", "P.ris", "P,ris" ou "P*ris" Rechercher. The conservation of etendue in free space is related to the reciprocity theorem for view factors. Other names for this property are acceptance, throughput, light-grasp, collecting power, and the AΩ product. Più funzioni. with . showing that the etendue of the light refracted at dS is conserved. It may also be seen as a volume in phase space. What does etendue mean? The geometry of the optical momentum vector is illustrated in figure "optical momentum". Find out more, Conservation of etendue in refractions and reflections, an offensive content(racist, pornographic, injurious, etc. Les solutions pour la définition ÉTENDUE pour des mots croisés ou mots fléchés, ainsi que des synonymes existants. Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. It is then also conserved as light travels through optical systems where it suffers perfect reflections or refractions. La funzione degli esempi è unicamente quella di aiutarti a tradurre la parola o l'espressione cercata inserendola in un contesto. Exemple: "P ris", "P.ris", "P,ris" ou "P*ris" Rechercher. In a spherical coordinate system p may be written as, and therefore, for an infinitesimal area dS=dxdy on the xy plane immersed in a meduim of refractive index n, the etendue is given by. comme de bien étendu — Solutions pour Mots fléchés et mots croisés. Vaste étendue, nouvelle proposition de solution pour "Vaste étendue". The normal to dS points in the direction of the z axis. • Pour peu que j'eusse voulu étendre quelques-unes de mes lettres, elles se fussent appelées des livres (BALZAC liv. The term étendue comes from the French word for extent or spread. Incoming light is confined to a solid angle dΩΣ and reaches dS at an angle θΣ to its normal. (Unless there is some sort of adaptive optics that is matched to the system, and this is only possible if the light is reasonably temporally coherent. Étendu en 3 lettres. Coniuga il verbo (anche da forma verbale). Nessun risultato trovato per questo significato. [1] Figure "etendue in refraction" shows an infinitesimal surface dS on the xy plane separating two media of refractive indices nΣ and nS. Entendu en 3 lettres. A perfect optical system produces an image with the same etendue as the source. IV, lett. From the above expression, the etendue of the incoming light is, and the etendue of the light reaching the receiver is, where C is the concentration of the optic. 11 lettres: Déclinatoire 13 lettres: For 3 lettres: Mer 3 lettres: Ressortissantes 15 lettres: Asie 4 lettres: Parc 4 lettres: Zone 4 lettres: Laps 4 lettres: Ness 4 lettres: Tuée 4 lettres: Mare 4 lettres: Arrêt 5 lettres: Lagon 5 lettres: Neige Company Information Solutions pour est étendu en 3 à 6 lettres pour vos grilles de mots croisés et mots fléchés dans le dictionnaire. Etendue is important because it never decreases in any optical system. These expressions result in showing that etendue is conserved as light propagates in free space. On a trouvé 23 solutions pour: All rights reserved. porter le sens d'un contrat, d'un arrêt au delà de ce que les termes signifient précisément. [1], Consider a light source, Σ, and a light "receiver", S, both of which are extended surfaces (rather than differential elements), and which are separated by a medium of refractive index n that is perfectly transparent (shown). The etendue of this light crossing dS is defined in 2D as. Tips: browse the semantic fields (see From ideas to words) in two languages to learn more. However, if light was to hit, say, a diffuser, its solid angle would increase, increasing the etendue. where is the view factor between differential areas dΣ and dS. Più efficace. As light travels through an ideal optical system, both the etendue and the energy flux are conserved. A windows (pop-into) of information (full-content of Sensagent) triggered by double-clicking any word on your webpage. Ici vous pouvez proposer une autre solution. For a given angular aperture, α, of the incoming light, this concentration will be maximum for the maximum value of β, that is β=π/2. Ti preghiamo di segnalarci gli esempi da correggere e quelli da non mostrare più. Etendue or étendue ("ay-ten-due") is a property of pencils of rays in an optical system, which characterizes how "spread out" light is in area and angle. Etendue or étendue ("ay-ten-due") is a property of pencils of rays in an optical system, which characterizes how "spread out" light is in area and angle. Lettres connues et inconnues Entrez les lettres connues dans l'ordre et remplacez les lettres inconnues par un espace, un point, une virgule ou une étoile. The wordgames anagrams, crossword, Lettris and Boggle are provided by Memodata. Most English definitions are provided by WordNet . Contact Us Definition from Wiktionary, the free dictionary, conserved property of the light in an optical system, area, expanse; size; extent, range, scale, The light power transmitted to the detector is proportional to the product of the solid angle, Advanced Infrared Technology [course title], https://en.wiktionary.org/w/index.php?title=etendue&oldid=60189583, Creative Commons Attribution-ShareAlike License. liv. English Encyclopedia is licensed by Wikipedia (GNU). 5. Throughput and AΩ product are especially used in radiometry and radiative transfer where it is related to the view factor (or shape factor). The area of dS projected in the direction of the light propagation is. | Last modifications, Copyright © 2012 sensagent Corporation: Online Encyclopedia, Thesaurus, Dictionary definitions and more. Grâce à vous la base de définition peut s’enrichir, il suffit pour cela de renseigner vos définitions dans le formulaire. In the context of Hamiltonian optics, at a point in space, a light ray may be completely defined by a point P=(x,y,z), a unit Euclidean vector indicating its direction and the refractive index n at point P. The optical momentum of the ray at that point is defined by. Meaning of etendue. Les synonymes sont classés par ordre de pertinence. motscroisés.fr n'est pas affilié à SCRABBLE®, Mattel®, Spear®, Hasbro®, Zynga® with Friends de quelque manière que ce soit. In base al termine ricercato questi esempi potrebbero contenere parole volgari. Choose the design that fits your site. Conservation of etendue in phase space is the equivalent in optics to Liouville's theorem in classical mechanics. étendue de sable — Solutions pour Mots fléchés et mots croisés. The English word games are: Nombre de lettres. You can also try the grid of 16 letters. Zero pubblicità. ○ Boggle. Eco, Cookies help us deliver our services. ○ Lettris Etendue can then remain constant or it can increase as light propagates through an optic, but it cannot decrease. By using our services, you agree to our use of cookies. Get XML access to reach the best products. Give contextual explanation and translation from your sites ! However, etendue is also conserved in refractions and reflections. The radiance of an optical system is equal to the derivative of the radiant flux with respect to the etendue. Get XML access to fix the meaning of your metadata. 4) Étendre la clause d'un contrat, les termes d'un arrêt, etc. Voir les synonymes d'Étendu classés par ordre alphabétique. | Scopri la traduzione in italiano del termine étendue nel Dizionario di Francese di Corriere.it The conservation of etendue discussed above applies to the case of light propagation in free space, or more generally, in a medium in which the refractive index is constant. Aide mots fléchés et mots croisés. Integration on dΣ and dS results in which allows the etendue between two surfaces to be obtained from the view factors between those surfaces, as provided in a list of view factors for specific geometry cases or in several heat transfer textbooks. This entry is from Wikipedia, the leading user-contributed encyclopedia. Information and translations of etendue in the most comprehensive … The etendue of this light is given by, Noting that is the numerical aperture, NA, of the beam of light, this can also be expressed as, Note that dΩ is expressed in a spherical coordinate system. ○ Wildcard, crossword [citation needed]), Conservation of etendue can be derived in different contexts, such as from optical first principles, from Hamiltonian optics or from the second law of thermodynamics. The same result is also valid for the case of a reflection at a surface dS, in which case nΣ=nS and θΣ=θS. Consider an infinitesimal area, dS, immersed in a medium of refractive index n crossed by (or emitting) light inside a cone of angle α. Vaste étendue, Solutions pour: Vaste étendue - mots fléchés et mots croisés. Refracted light is confined to a solid angle dΩS and leaves dS at an angle θS to its normal. Gli esempi non sono stati scelti e validati manualmente da noi e potrebbero contenere termini o contenuti non appropriati. Each square carries a letter. • En cela il a étendu sa commission et a fait plus qu'il ne devait faire (BALZ. © 2013-2020 Reverso Technologies Inc. Tutti i diritti riservati. To compute the etendue of the system, one must consider the contribution of each point on the surface of the light source as they cast rays to each point on the receiver.[3]. Privacy policy Recherche - Définition . Letters must be adjacent and longer words score better. Nombre de lettres. VI, lett. The directions of the incoming and refracted light are contained in a plane making an angle φ to the z axis, defining these directions in a spherical coordinate system. Traduzioni in contesto per "etendue" in francese-italiano da Reverso Context: étendue, peut être étendue, étendue à d'autres, devrait être étendue, doit être étendue L'Utilisation de ces marques sur motscroisés.fr est uniquement à des fins d'information. Tempo di risposta: 87 ms. Parole frequenti: 1-300, 301-600, 601-900, Altro, Espressioni brevi frequenti: 1-400, 401-800, 801-1200, Altro, Espressioni lunghe frequenti: 1-400, 401-800, 801-1200, Altro. The SensagentBox are offered by sensAgent. which is an infinitesimal volume in phase space x,y,p,q. I termini volgari o colloquiali sono in genere evidenziati in rosso o in arancione. It is a central concept in nonimaging optics. In real systems etendue may increase (for example due to diffusion) or the light flux may decrease (for example due to absorption) and, therefore, basic radiance may decrease. Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. Therefore, the basic radiance defined as[4]. Add new content to your site from Sensagent by XML. Définition ou synonyme. See if you can get into the grid Hall of Fame ! ), list of view factors for specific geometry cases, http://en.wikipedia.org/w/index.php?title=Etendue&oldid=475509746. Because angles, solid angles, and refractive indices are dimensionless quantities, etendue has units of area (given by dS). To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares. With these definitions, Snell's law of refraction can be written as, where both sides of the equation were also multiplied by dφ which does not change on refraction. where n is the refractive index in which dS is immersed and d2Φ is the is the radiant flux emitted by or crossing surface dS inside solid angle dΩ. Rechercher Il y a 5 les ... Tout. [1][2], An infinitesimal surface element, dS, with normal nS is immersed in a medium of refractive index n. The surface is crossed by (or emits) light confined to a solid angle, dΩ, at an angle θ with the normal nS . ○ Anagrams Voir les synonymes d'Étendu classés par nombre de lettres. Pas de bonne réponse? Solution Longueur; erg: 3 lettres: baine: 5 lettres: plage: 5 lettres: arene: 5 lettres: desert: 6 lettres: Qu'est ce que je vois? Accordingly, the etendue of the light crossing dS coming from dΣ is given by: where is the solid angle defined by area dΣ. is also conserved. Aide mots fléchés et mots croisés. Change the target language to find translations. Definition of etendue in the Definitions.net dictionary. Borrowed from French étendue (“area, expanse; size; extent, range, scale”), short for étendue géométrique (“geometric extent”). 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Now, if a large surface S is crossed by (or emits) light also confined to a cone of angle α, the etendue of the light crossing S is, The limit on maximum concentration (shown) is an optic with an entrance aperture, S, in air (nI=1) collecting light within a solid angle of angle 2α and sending it to a smaller area receiver Σ immersed in a medium of refractive index n, whose points are illuminated within a solid angle of angle 2β. Recherche - Définition . If both surfaces dΣ and dS are immersed in air (or in vacuum), n=1 and the expression above for the etendue may be written as. 6. Les solutions pour la définition VASTE ÉTENDUE pour des mots croisés ou mots fléchés, ainsi que des synonymes existants. This page was last edited on 31 August 2020, at 08:38. These definitions must be applied for infinitesimally small "elements" of area and solid angle, which must then be summed over both the source and the diaphragm as shown below. On a trouvé 1 solutions pour: restes étendu avec 3 lettres. The etendue is related to the Lagrange invariant and the optical invariant, which share the property of being constant in an ideal optical system.