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Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface. The law of reflection states that a reflected ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by the incident and reflected rays. This behavior was first described by Hero of Alexandria (AD c. 10–70). Specular reflection may be contrasted with diffuse reflection, in which light is scattered away from the surface in a range of directions.

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  • انعكاس منتظم
  • Specular reflection
  • Réflexion (optique)
  • Riflessione speculare
  • 정반사
  • Reflexão especular
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  • Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface. The law of reflection states that a reflected ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by the incident and reflected rays. This behavior was first described by Hero of Alexandria (AD c. 10–70). Specular reflection may be contrasted with diffuse reflection, in which light is scattered away from the surface in a range of directions.
  • 정반사(正反射)는 거울처럼 매끈한 면을 경계로 일어나는 반사를 말한다. 거울반사 또는 경면반사(鏡面反射)라고도 한다.
  • Reflexão especular é o reflexo espelhado da luz (ou de outros tipos de onda) em uma superfície, no qual a luz de uma única direção de entrada (um raio) é refletida em uma única direção de saída. Este comportamento é descrito pela lei de reflexão, que refere que a direcção da luz de entrada (o raio incidente), e a direcção da luz reflectida de saída (o raio reflectido) fazer o mesmo ângulo em relação à superfície normal, assim, o ângulo de incidência é igual ao ângulo de reflexão (na figura), e que o incidente, normal, e direcções reflectidas são coplanares. Este comportamento foi descoberto pela primeira vez através de uma cuidadosa observação e medição por Hero de Alexandria (AD c. 10-70).
  • الانعكاس المنتظم أو الاانعكاس المرآوي نقيض الانعكاس العشوائي وهو الانعكاس الذي يرتد فيه الضوء عند اصطدامه بحائل بجهة واحدة وتكون زاوية الانعكاس مساوية لزاوية السقوط بما يحقق قانون الانعكاس. عندما يجري الانعكاس بهذه الكيفية, يدعى انعكاسا منتظما. الانعكاس المنتظم هو المرتكز الذي بنيت على أساسه المرايا والألياف الضوئية والعدسات. فالانعكاس المنتظم من المرايا المستوية والمرايا الكروية هي التي تمكن عين الإنسان من رؤية أخيلة الأجسام في المرايا. وتتحسن انعكاس الضوء بشكل منتظم كلما صقل السطح أكثر وتحسنت ملاسته ونقاءه. أما الانعكاس العشوائي فيشتت الضوء الساقط فلا يعود بمقدور العين مشاهدة الأخيلة. كما في حالة سقوط الضوء على قطعة قماش أو حائط.
  • La réflexion en optique désigne un des phénomènes qui intervient lors de l'incidence de la lumière sur un matériau. La part de la lumière qui n'est ni absorbée, ni transmise est dite réfléchie. C'est ce phénomène qui explique que l'on voie un objet éclairé par une source (par exemple le soleil ou une lampe) : la lumière émise par la source se réfléchit sur l'objet et vient vers notre œil. * Réflexion spéculaire de la lumière * Réflexion sur un immeuble de l'Avenue Paulista, São Paulo. * Reflexion à la surface du lac Stappitz dans le Hohe Tauern, Autriche.
  • La riflessione speculare consiste nella riflessione osservata quando un singolo raggio incidente che forma un angolo con la normale produce un singolo raggio riflesso con angolo rispetto alla normale con il verificarsi dell'uguaglianza , in accordo con la legge di riflessione. Raggio incidente, normale e raggio emergente giacciono sullo stesso piano.
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