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Semiconductor light-emitting diode LED which is the 21st century, the largest and most active high-tech industries. This paper tries to explore the development trend of indoor lighting, LED technology to enhance the key, hoping the joint efforts of the industry, China's LED industry is healthy and orderly development of the role of better ideas. Introduction According to StrategiesUnlimited statistics, the next 5 years, the development of LED interior lighting trend of exponential growth. It is estimated that by 2011, its output value will reach tens of billions of dollars. This LED interior lighting, it is both an opportunity and a challenge. According to the trends in interior lighting to enhance the development of LED technology, the key is very necessary. First, the classification of indoor lighting 1. In accordance with the classification prescribed manner (1) the so-called direct lighting, direct lighting is the light through the light after injection, 90% -100% of the flux is assumed to reach the work surface, resulting in a strong contrast and vivid light light and shadow effects, highlighting the face with the leading position throughout the environment, mainly for the workplace. (2) semi-direct lighting, direct lighting is the so-called semi-translucent material with a light shade covering the upper part, which makes 60% -90% of the light focused fired face, in addition, there would be 10% of light quilt -40% of the proportion of diffused by the translucent shade diffuse upward. The illumination light produced softer, diffuse light up the building and will increase the sense of space, mainly for the lower height of the room. (3) the so-called indirect lighting Indirect lighting refers to the light shielding and the indirect light illumination, 90% -100% of the flux through the ceiling or wall of the reflex in the face, less than 10% of the remaining light exposure on the work surface directly. In general, this way of lighting and other lighting in the way only after use can be achieved with special artistic effects, mainly for shopping malls, clothing shops, meeting rooms. (4) Semi-indirect lighting, direct lighting relative to the half-way, the semi-indirect lighting approach is a completely opposite way of lighting, specifically, the translucent light shade mounted on the bottom, making the 60% level of light shooting top, thus forming an indirect light source, and the remaining 10% -40% of the light is spread by the shade down. This approach can produce the lighting effect more obvious, so that more low increase in the room have a certain sense. Mainly applied to residential space is lower, such as the lobby, corridor and so on. (5) diffuse illumination lighting method is the use of diffuse light refraction capabilities to control glare, which will diffuse the light to the edges. The lighting in general, there are two forms, one is shot by the light from the lamp topped catchy reflection on both sides spread from the translucent shade, while the lower spread from the grill. The other is light with a translucent shade to full closure and diffused. Light is generated by such lighting visual comfort for the bedrooms and so on. 2. In accordance with the specified type classification overall lighting: general lighting, indoor light to the interior space of interior furnishings can tell people, channels, and doors and windows. Accent lighting: The lighting will be decorative painting on the wall or countertop, the cabinet was inside the outstanding item mapping, eye-catching, making the visual center. Auxiliary Lighting: mainly used for accent lighting with a number of statues, handicrafts and other lighting. Levels of illumination: the main level for more before and after the facade design, mainly the lighting in a lighting effect, the additional lamp, floor lamp and the former two ornaments to decorate the backlight, which to strengthen the level of a sense of purpose. Dimensional lighting: mainly in the interior space of the different directions and different angles install various types of lamps, even in the back and bottom of the installation of furniture, lamps, intended to enhance the sense of space in the room for gatherings or crowded places, easy to create atmosphere. Decorative lighting: light source in the indoor use of color, neon tubes, plastic tape or optical fiber and laser light so purely decorative lighting made graphics and text. Broadly speaking, the overall lighting commonly used office space (based lighting, ambient lighting), and in the home and shopping malls, bars and other places will use a combination of several light illumination. Second, the development trend of indoor lighting, different lighting can produce different sense of space, good lighting effects can have a better sense of space, people feel good, otherwise it will make people feel depressed and unhappy. The interior lighting is the way people access to one of the largest lighting, the design will affect the people's daily life and work, the importance of self-evident. The good news is, the industry's efforts, more and more healthy indoor lighting is to orderly development, the following trends on a few of the mainstream are as follows 1. Energy saving lighting in the room, the European and American national attention earlier. Early 90s of last century on the launch of the U.S. Environmental Protection Agency Identification System Commodity Energy EnergyStar, to meet energy efficiency standards for products labeled with a green five-pointed star of the label, and enter the United States Environmental Protection Agency to promote the catalog. 2007 U.S. Energy Independence and Security Act (theEnergyIndependenceandSecurityActof2007) of the issued, making the United States in May 2008 the energy consumption greatly reduced, and further urging the U.S. Department of Energy DOE to BrightTomorrowLightingPrize (LPrize) competition in the form of lighting manufacturers to encourage and promote R & D a higher efficiency, higher energy-efficient semiconductor lighting (LED) products, to replace general lighting products to energy-saving environmental protection purposes. According to statistics, Shanghai office building is currently an area of 3420 square meters, if we provide a table of data to be calculated to 1.5 square meters a light subject, totaling 22.8 million lights, Energy Star products can save 26.6 million kWh of electricity, reducing CO2 emissions is as high as 1.729 billion kilograms! This is to improve our living environment, reduce the greenhouse effect has a remarkable significance. 2. Functional diversification (1) high color light color is the color rendering of the extent of the object itself, that is, the performance level of color fidelity. The table parameter is the color index, the higher the value, the better the color of light. Currently, high CRI lamps is generally 90 or more, mainly for the kitchen, the counter products, hospital operating table lighting. (2) intelligent selection and efficient light source that does not mean necessarily to produce energy-saving lamps, the current through the circuit design, lighting control is also more to the intelligent development, mainly in the ŠU 1) Hui-order variable: the scene according to the actual application need to adjust the actual brightness of lamps, for example, by adjusting the lamp brightness can be reduced at some, since the reduced glare, but also to save energy; 2) color adjustable: in some shopping or some home accessories, lighting results can be ; 2) color adjustable: in some shopping or some home accessories, lighting can change colors to enhance the artistic sense of space. Also lighting in some scenes, or music to control the lights change, or need to create an atmosphere to deploy the appropriate lighting, attached lighting human design. (3) research and development of flexible Osram LED lamps can be seen through the design of flexible metal poles can be freely folded into any shape, greatly enhancing the artistic sense, gives a refreshing feeling. 3. Light and thin layers using the three-dimensional lighting and interior lighting is mainly to enhance the sense of space, the reasonable use of lighting effects, which makes maximum sense of space, gives a more comfortable feeling, which is the size of light itself, a higher requirements. Some traditional light sources such as CCFL, metal halide lamps, halogen lamps and so on in the direction to the development of smaller, but relatively speaking, the traditional halogen light sources miniaturization is limited, LED in the more obvious advantages of this . Philip R & D led kitchen lights, the use of its low profile, the thickness of the lamp is only 20mm, can be seen from the figure, ultra-thin lighting makes the room to further enhance the sense of space, lighting and overall space to achieve the perfect fusion, and the product is a sense of art and practicality in one of the typical representative. 4. Environmental Protection of the European Union has launched the "Electrical and Electronic Equipment Directive restricting the use of certain hazardous substances" RoHS regulations that require 1 July 2006 the EU market after the new electrical and electronic products shall not contain lead, mercury, cadmium, hexavalent chromium , polybrominated biphenyls, polybrominated diphenyl ethers of six hazardous substances. This requires light in addition to reducing energy consumption to reduce CO2 emissions, each composed of parts and components do not contain the above substances, so the real environment. The promulgation of the Ordinance to encourage firms to produce environmentally-friendly products, reduce the burden on the environment and is the current trend in the field of lighting the mainstream of development.
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