Tuesday, January 3, 2012

lighting application

LED in indoor lighting application status and future
China Industrial Network LED next development, the trend is very good, but the problems are improved. For example, in the supermarket and shop lighting, it is necessary to consider the color, to meet the commercial lighting. LED interior lighting also relates to the safety and feeling, this is not a bit like outdoor lighting, outdoor human exposure to light for a short time. The interior lighting, to long time and source contact. Can meet the people's feelings, still need to undertake long time test.

Professor Ren Yuan-hui, indoor lighting is different from that of night scene lighting, more emphasis on the lighting function; relative road lighting, is a more vast space, the use of different places, different functions, different sizes, different decorative appearance request, determines the indoor lighting variety, with light different types of enterprises, the hundreds of thousands flocking to the lighting situation, should broaden their vision, change thinking, entered the room with the wider world.
At present, the following places suitable for the application or try LED lamps:
( 1) residential or similar places staircase aisle, install energy saving self-turning-off switch light, almost all of the incandescent lamp, the most appropriate use LED instead, good energy saving effect, though it is only a" small", but the amount is large, national estimates of over 100 million, its energy-saving benefit is considerable, business economic benefits is remarkable.
( 2) evacuation lamp, evacuation indicator lamp, as well as other marker lamps, and some alternate illuminator ( when the normal lighting using HID lights ), suitable for LED.
( 3) using LED instead of PAR38 ( using incandescent lamp ) of these 5 types of lamp, it is very appropriate; further study instead of MR16, MR25 ( the halogen spotlights ) class; these should ask the LED to a higher color rendering index ( Ra ) and has a warm color table ( < 3300K ).
( 4) applied to shopping malls lighting spotlights, Bo exhibition hall class building lighting, and public buildings of the cylinder, and so on.
( 5) the hotel use incandescent and halogen more, is the application of LED lamp suitable places, can be used to replace the incandescent lamp, halogen lamp: rooms required dimming lamp, bed top reading lamp, night light, lamp, lamp, open the door, wardrobe door lamp, aisle lights, and toilet bath lamp.
( 6) local lighting, using safety extra low voltage ( SELV ) inspection lamp.
( 7) the visual condition requirements are not too high, the general construction of the assisted places, such as corridors, toilets, a general purpose warehouse, fan, water pump housing.
Of course, there are some places need to conduct applied research:
( 1) decorative requirements for high places ( hotel ) crystal glass chandelier, now use candle incandescent lamp, should study can achieve a similar result to replace LED, from the color temperature, spectral and color effect research.
( 2) require dimming hall, multi-function hall and other similar places, now with an incandescent lamp, research should be replaced with LED.
At the same time, Ren Yuan-hui professor thinks, some places do not have the application LED mature conditions:
( 1 ) the principal place of office, classroom, shopping malls general lighting, control room, various types of industrial sites ( such as instruments, electronics, textile, clothing, cigarettes etc.).
( 2 ) this kind of lighting is mainly functional lighting, color and high color temperature requirements, affordable, good glare control, good uniformity, to ensure good visual environment, and has high lighting efficiency; now use three color fluorescent lamp ( not less than 4 feet long ), the light effect high, the visual effect is good, the current LED is also difficult to meet these requirements, so not to use, can study the preparation conditions, how to adapt to the lamp light distribution form.
LED for the popularization and application in large scope, Ren Yuan professor expected in 5 to 10 years time, LED in indoor functional lighting field more widespread application

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