Long wave pass filters are usually used for wavelength order classification. One side is plated with hard medium long wave pass filter film and the other side is plated with antireflection film, which can cut off sharp light at a specific wavelength, while the other wavelength region has high transmission, so as to achieve the purpose of isolating a wide region of the spectrum
The filter is made of plastic or glass with special dyes. The red filter can only let the red light pass through, and so on. The transmittance of glass sheet is similar to that of air, and all colored light can pass through, so it is transparent. However, after dyeing with dye, the molecular structure changes, the refractive index also changes, and the passage of some colored light changes. For example, when a white light passes through a blue filter, it emits a blue light, while there are very few green and red light, and most of them are absorbed by the filter.
Long Wave-pass Fliter Hanzhong Hengpu Photoelectric Technology Co.,Ltd , https://www.hplenses.com
The data shows that at present 99% of buildings in China are high energy consumption. Among them, the average energy consumption of office buildings is 7 to 8 times that of European countries and 10 times that of Japan. One foreign office building has a service life of 30 years, and the operating cost including electricity consumption has reached three times the initial investment. Therefore, more and more countries are accelerating the development of comprehensive energy-saving technologies for office buildings and the promulgation of relevant measures. The latest scientific and technological achievements can make buildings energy-saving 30% to 70%.
The future: China's lighting energy saving space is huge
Philips brings a comprehensive energy-efficient lighting system that is the industry's leading source of light, luminaires and intelligent lighting control systems. In the current forum, the participants will introduce the thinking of the future of green lighting in China's buildings, how to balance the cost and effectiveness, and get out of the green lighting development of office buildings with Chinese characteristics. .
Through the exchanges with experts, designers and developers, the reporter learned that most large-scale architectural design agencies and owners have already had a certain degree of contact with energy conservation, environmental protection and green lighting, although from the current operating mode of the office industry in China Look, the direct benefits of office building energy-saving lighting equipment to developers are not great, but a considerable number of enterprises agree to promote lighting, office building energy saving is to reflect the company's social responsibility for energy saving and emission reduction.
On the other hand, lack of understanding of specific products and application knowledge, energy-efficient building standards are not high, but also become a basic issue to promote the level of green lighting in buildings. In the interview, the reporter learned that the owners who are the main driving force generally focus on the energy-saving concerns on air-conditioning and heating systems, which account for 65% of the total energy consumption, and know about the energy-saving lighting of office buildings with more convenient installation and more effective effects. less.
Green Lighting Technology: Conversion of New Productivity
From a global perspective, users of office buildings and customers have now increasingly considered the impact of indoor environmental quality, service and comfort on business activities when choosing an office location. A work environment that allows employees to work optimally and at a reduced cost of use is the result of satisfaction with office owners, leasing companies and employees.
Through Philips' intelligent display of products and various dimming systems in the simulated office environment, the reporter saw Philips MicroT5 lamps with a height of only 50mm, which not only saves materials and installation space than T8 lamps; but also supports MasterT5 lamps and preheating electronics. Ballasts can save up to 25% more energy than traditional grille fixtures. The LuxSense daylight automatic induction dimming system is linked to the sunlight outside the window, saving about 35%. OccuSwitch mobile detection switch system can automatically detect and sense the number of people and activities in the room, flexible adjustment of brightness, comprehensive energy saving up to 30%. In addition, next-generation energy-saving light sources such as LEDs have also been fully extended to office lighting. This year, Philips has implemented the world's first office in the world to use LED lighting solutions. Is the 2008 industry wintering?
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Filter is an optical device used to select the required radiation band. A common feature of filters is that no filter can make the imaging of celestial bodies brighter, because all filters will absorb certain wavelengths, making objects darker.
