stylo faisceau laser
A laser (Light Amplification by Stimulated Emission of Radiation, or light amplification by stimulated emission of radiation), is a device that uses a quantum mechanical effect (induced or stimulated emission), for generating a coherent light beam of a suitable means and the size, shape and purity controlled. Indeed, it is a light emitter, but as special as extraordinarily versatile light, so that the laser devices in its many facets, are increasingly present in our daily lives for years now and incessantly in evolution . They can be a simple pointer to point on a map, the eye reading a DVD, or be of vital importance in the technology applied to many scientific circles, from medicine to engineering, aerospace, defense, etc. ..
stylo faisceau laser is a small device with a size ranging from a pen-like (or even smaller type Key), to an average-sized flashlight that emits a laser light, usually green or red and that is often used to indicate a specific point or place as day show only point of light when striking an opaque surface. Laser light is intense, therefore also the pointers is. Although they are only a few milliwatts of power, they are able to produce a high intensity beam of a millimeter in diameter. In fact, their intensity can be equal to that of sunlight. Any ordinary lamp emits a much higher amount of the laser light of a small but scattered in all directions.
Laser beams are narrow and do not disperse as does a light bulb. This quality is called directionality and which allows its use as a pointer for presentations. It is known that not even light bulb achieves a powerful travel far: if you focus skyward, its beam seems to fade away. The beam begins to spread in the time out of focus, to achieve such a degree of dispersion comes to lose its usefulness. However, they have managed to reflect laser beams of a few watts of power on the moon and its light was still bright enough to see from Earth. One of the classe d'un pointeur laser being shot to the moon in 1962 only reached four kilometers spread over its surface which was at a distance of three hundred and eighty thousand kilometers.
Beam Laser Pointer
Lasers produce monochromatic light, that is, single color. The common light contains all the colors of visible light (the spectrum), which combined together, they become white. The laser beams have been produced in all colors of the rainbow (although the most common are red and green), and also in many types of invisible light; but a specific laser may only issue solely one color. Certain lasers can emit monochromatic several frequencies at once, but not a continuous spectrum containing all colors of visible light as a light bulb can do. In addition, there are numerous lasers projecting invisible light, such as infrared and ultraviolet.
As for the most common uses of laser pointers are: fun, astronomy, photography, signage, experiments, presentations, studies, visual spectacles, acupuncture, ear , mountaineering, hunting, airsoft...
2. Construction of Laser Pointers - Back to Index
Classic red pointer carries in its simplest configuration, a laser diode that emits red light whose measured wavelength in nanometers, can range from orange-red (635nm) to dark red (690nm). From 700nm red it is so dark that our eyes no longer be perceived and that's when it becomes infrared. That is an invisible for us but more dangerous lightning, because we can not see it. Before this diode a lens focused correctly produces a thin beam of laser light is placed.
Construction of laser de poche
The green laser pointer functions in a very different way: as the green laser diode is not fully developed, an indirect method is used to achieve the desired color, called DPSS (Diode Pumped Solid State) or diode pumped solid state.
A green pointer carries a laser diode invisible infrared light (at 808nm) and high power that focuses on a doped crystals that change color laser. The result of this process is green laser at 532nm. The problem is that not all of the infrared laser is turned into green, but only 20% and the rest is transformed into heat and also a part of the infrared light leaves the glass with green, so the infrared filter sets ( GO).
How They Work Laser pointers GreenPartial detail of the interior of a 200mW green laser pointer with IR filter. It is seen as the infrared laser that is emitted from the inside, it's become green at the exit, passing through the doped crystals. IR filter on top.
An IR filter Green Laser PointerThrough superior IR lens, you can see the tiny green glass polarizing beam and makes it the green light to 532nm.
To get a powerful green laser a powerful infrared laser diode is needed as the effectiveness of the glass is little, apart from the green and have a residue of infrared does not interest us.
The more bad the glass, but we in the infrared output. That's why a short distance, 20mW green laser lights matches because it has 100mw infrared. As there is a lens for collimating the green beam, infrared light leaves more open (divergent) therefore only burns near the opening. The real power is being told in green (532nm).
The problem with the lasers of poor quality, do not have an IR filter and as a result, the light output in these pointers unfiltered IR make mixing with infrared light.
The problems that infrared light is mixed the actual colors are:
Si tu veux acheter un laser puissant vert, pour vous, il n'y a rien à craindre.Tu ne crois en 200mW 532 nm un Pointeur laser à forte puissance de la lampe de poche.Le laser est non seulement par rapport à une période de temps prolongée, d'autres dispositifs de faisceau laser, peut également aider à vous signaler que le meilleur retour sur quelque chose de pointeur de puissance élevée 200mW semaine mieux laser vert va te donner de l'argent.C'est un excellent outil pour la présentation et le commerce de la Conférence.Si vous êtes dans un séminaire de montrer quel introduit, ces lampes peut très bien fonctionner.De façon à écran de projection sur ce point est vraiment louable, tu peux gagner louer à d'autres.Le Pointeur laser est dirigé vers un objet non seulement le droit, mais aussi de contribuer à l'objet de souligner différents sur un moniteur vidéo.Bien que l'indicateur laser avec indicateur de lumière verte pour aider les gens à réfléchir si l'objet a une meilleure façon de l'utilisation et de la sécurité, il ne doit pas être directement à une personne.Et l'utilisation de ces lampes, yeux de ne pas regarder les autres, car elle peut entraîner le pointeur C présente une expérience - dent.ces laser vert sans outils, très approprié pour une utilisation quotidienne, mais il faut que le contact avec les enfants.Souviens - toi, ce n'est pas un jouet Stylo laser et des jeux pour enfants.Donc, si vous voulez utiliser ces stylos, ils devraient utiliser sous la supervision d'un adulte.200mW 532 nm de lampe de type Pointeur laser haute puissance est le moment parfait pour quelqu'un qui ne voulait pas aller à l'aventure, léger et solide de Pointeur laser va t'aider à t'avoir l'argent de préférence en retour.Donc, si tu veux acheter ce stylo n'est pas clair.Si vous ne savez pas utiliser ces stylos, vous pouvez d'examen d'experts, afin de mieux comprendre la fonction de ces stylos.
Laser pointer used in industry. For example, construction companies can use high quality laser pointers to improve the accuracy of display specific distance, while for large projects. They have been shown to be useful in this type of business because of their accuracy, making them important in order to save time. What is essentially a laser pointer can be integrated into an infrared thermometer to determine where to go, or is a part of a laser level or other device. They can also be useful in scientific research in areas such as optoelectronics, chemistry, physics, and medicine.
Leisure and entertainment is one of the other applications that have been found in lasers. In the entertainment of the most common use of the laser can be seen in the special effect of laser performance. Clubs, parties and outdoor concerts all use high power lasers for security measures, just like a show.
Le style de la torche laser rouge et vert est maintenant disponible dans le magasin le magasin en ligne et faire du shopping.Si vous voulez acheter vert laser en ligne, vous avez besoin de validation d'authenticité, la boutique, et de trouver le meilleur de la demande.Ne crois pas un magasin, si tu crois que c'est la crédibilité.
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