I, Overview :
Nanofiber is a shorthand for nano-optical fiber, which is a light-conducting tool reached by using the principle of total reflection of light in fibers made of glass or plastic. The optical fiber was invented by Charles Kao, former president of the Chinese University of Hong Kong. The microscopic fiber is encapsulated in a plastic sheath that allows it to be bent without breaking. Typically, a transmitting device at one end of the fiber uses a light emitting diode (light emitting diode, LED) or a beam of laser light to transmit light pulses into the fiber, and a receiving device at the other end of the fiber detects the pulses using a photosensitive element. In everyday life, optical fibers are used to transmit information over long distances because the conduction loss of light in optical fibers is much lower than the loss of electricity in electrical wires. As the price of optical fibers is decreasing day by day, optical fibers are also used for medical and recreational purposes.
Two, structure and classification of optical fibers:
Optical fibers are mainly classified into two categories, one is asymptotic fiber and the other is leap step fiber. The refractive index of the former is gradual, while the refractive index of the latter is abrupt. Also divided into single-mode fiber and multi-mode fiber In recent years, there are new photonic crystal fiber. According to the material: quartz glass, multi-component glass, fluoride, plastic, liquid core. According to the transmission mode: single-mode, multi-mode level shot, multi-mode oblique shot. According to the refractive index: step type, gradient type fiber. According to the working wavelength: short wavelength fiber, long wavelength fiber, ultra-long wavelength fiber.
The data transmission rate of fiber optic cable is higher than that of coaxial cable and twisted pair. In fiber optic cables, optical fibers carry digital data in the form of light pulses. An optical fiber consists of a very thin glass cylinder called the core, which is covered by a concentric layer of glass called the cladding. Each glass guide core can only transmit signals in one direction, so there are two independent guide core in the fiber optic cable, one for sending, one for receiving;
Three, Application:
1. Indoor decoration;
In the interior decoration, the use of side-illuminated fiber optic to form a rotating corridor lines, light uniformity, soft colors, giving a harmonious and happy feeling; the reasonable use of the fine end of the light in the home to create a romantic and cozy atmosphere, in their own homes as well as bathing in the feeling of the bar. In the hotel hall, the installation of meteor fiber optic crystal chandelier, through a variety of colors and highlights of the changes, more gorgeous chic, giving people a refreshing feeling; in the ktv rooms and performing arts hall, the use of fiber-optic end light, assembled into a pattern with artistic effect, but also the use of fiber-optic end light ceiling, can simulate the effect of the starry night sky, bright and dark, so that people have unlimited space reverie.
2. Water Lighting;
The water left the lighting will lose the charming scenery. Ordinary lighting and bring danger to visitors hidden danger, we visit the water features, usually can see "Do not play in the water, beware of electricity" and other words, no doubt to our visit to bring a little regret. Due to fiber optic lighting to achieve the separation of photoelectricity, with fiber optic lighting as a water feature embellishment, not only colorful and novel, and absolutely *, is the best match. Fiber optic lighting in addition to lighting for the water body, so that the water color is more colorful and moving, can also be used to form a side light fiber optic pool gallery line. So that the vertical color of the water and the horizontal contours of the pool, the formation of coordinated lines of beauty.
3. City buildings;
In the lighting project, with side-lit fiber to form the building contour line is the most common application examples. Especially for a city's image of the building, with colorful lines to the building outline in the night looks more spectacular. At the same time, the optical fiber has a long service life and is a maintenance-free product, which greatly reduces the operating costs. In addition, you can change the light color of the fiber optic decorative lighting, so that the color of the building outline changes with the season or climate, giving people a humane feeling.
4. Landscaping;
In landscaping, the end-emitting optical fiber for pavilion yard lights, buried lights, so that the green space, the road in the illumination at the same time there are color changes.
5. Road lighting;
In the landscape road, loaded with starry end light-emitting fiber optic, become fiber optic canopies, more interesting to increase the landscape, at the same time can be a meteor cable flat on the ground, people walk on it as in the color of the light in the floating, to the people who play the infinite reverie.
6. Cave lighting;
Cave is a natural landscape, because it does not have sunlight, the whole * light to show its style. Variable light color and flexible fiber optic, the irregular soluble rocks and lakeshore is more obvious that it has a use, so that the scenery of the cave is more fascinating. And the most important thing is to remove the not hidden danger to the tourists.
7. Ancient buildings and cultural relics lighting;
In the general light irradiation, due to the role of ultraviolet light, so that the book cultural relics, wooden structures and other buildings to accelerate aging. At the same time there is electricity will cause the danger of fire. And with fiber optic lighting, both and can achieve the desired artistic effect.
8. flammable and explosive occasions;
In the oil depot, mining and other strictly prohibited fire into the dangerous occasions. Application of various other lighting are open fire hazards. If you are not careful will cause a big trouble. From the point of view, because of the separation of light and electricity, so fiber optic lighting should be an ideal lighting.
9. The use of sunlight;
In our common use of solar energy, are converted to heat or electricity, and fiber optics can be used directly to the use of sunlight, used to improve the lighting of the living room, for the dark basement, tunnel, using fiber optic lighting, can never see the sunshine of the place can see the light again.