So far, the LED into the field of lighting is the so-called special lighting field, such as cars
Lighting, urban landscape lighting, museum of cultural relics art lighting and backlight, etc., that is to say,
According to be on the intensity of illumination requirement not too high, belongs to the direction of indicative and “see” the light source, and it is
This tolerance is higher, the LED can be compared with other lighting light source should be superior performance
Use occasion.
LED to really to the home lighting and commercial lighting, must overcome two obstacles, needs
Set up some related technical standards, to carry out a series of technical work applications.
One of the two big obstacles is must further improve the efficiency of leds indicate. From the current has become a commodity (no
Refers to the power white LED laboratory level), high level of 50 lm/W. A lot of white light
LED levels in 30 ~ 40 lm/W, 2 ~ 3 times that of incandescent lights, with 80 lm/W and a fluorescent lamp
Distance, it is necessary to enhance internal quantum of the LED and the external quantum efficiency, fundamentally solve the question
The topic.
The second is the cost of the LED light source or the so-called unit lumens price. At present, the domestic and foreign power
Bai Huang LED about lumens per 1 yuan (RMB), is nearly 100 times normal fluorescence class price. clearly
This is the general average household lighting or commercial lighting. Therefore, to reduce costs is LED in
Another key issue in the field of lighting, which through the power LED large-scale production to start to solve it.
In addition, the LED light source to replace the traditional lighting source, must also solve a series of problems in technology.
For example, the traditional light source such as LED and incandescent lamp, fluorescent lamp luminous characteristics and light distribution curve is different, therefore,
Its means of lamps and lanterns and light distribution forms are different, need to design the corresponding lamp light distribution
Structure and style. This to do a lot of test and design work, especially in the optical design.
Leds for lighting, due to traditional the working voltage of all sorts of lamps and lanterns with mains directly (for our country
220 v) or use the standard safe voltage (low pressure) such as AC12V, AC24V, AC36V, etc. As a result,
Like each with a fluorescent ballasts, LED lamps and lanterns must form a complete set of AC, DC conversion and constant current
Drive power supply, this is about to make a adapt to different power and current of the LED light source drive series,
And design all kinds of connectors, easy to use and exchange.
Second, must develop the LED lighting source of technical standard and standard light source products, domestic production
Step by step on the path of standardization, standardization, also facilitate unified grading products.
In addition, to speed up the LED light source and solar cell mutual coordination, as soon as possible, with low cost
Renewable resources in the true sense of green lighting system.