LED street light design
Arrange, as shown in 1. 1 Arrangement (B) è…½ Interlace arrangement, as shown in 2. 2 è…½ é‚‹ é‚‹ é‚‹ é‚‹ arrangement, as shown in 3. 3 è…½ 排列 排列 ä¸å¤® , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The intersections are arranged or aligned, and if the central separation of the road is sufficient, the central separation can be used. The height and the distance of the road are also the same as that of the porphyrin. It has a separable, semi-shielded and shielded type. The angle of the light is from 0 to 65 degrees, from 0 to 75 degrees and from 0 to 90. degree. The road height rhyme height accompanying the rhyme distance can be tested as shown in Table 1 below, where W is the road degree, H is the height of the rhyme, and the S is rhyme. Table 1 Road 陪 陪 陪 殓 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( (S) rhyme degree (H) rhyme seperate (S) array 1.0W or more 3H or less 1.2W or more 3.5H or less 1.4W or more 4H or less è…½ interlaced 0.7W or more 3H or less 0.8W or more 3.5H or less 0.9 W or more, 4H or less, è…½ phase arrangement, 0.5W or more, 3H or less, 0.6W or more, 3.5H or less, 0.7W or more, 4H or less, central separation, 1.0W or more, 3H or less, 1.2W or more, 3.5H or less, 1.2W or more, 4H or less (the test section, "Royal (1986) and the "Traffic Engineering Hand" (1980) of the Ministry of Communications of Taiwan, the next step is to calculate the luminous lumens required for the lighting fixtures according to the illumination requirements of the roads, and arrange the heights of the distances to the height of the road. The average illuminance (lx) required to accompany the darkness uniformity is shown in Tables 2 and 3 below: Table 2 City average road illuminance (bit: lux (lx)) roads, sub-division, residential pavement, cement concrete pavement, green pavement, cement concrete Road City Road, Artemisia Road, Other Roads, Suburbs, Artesian Road, Other Roads, Table 3, Light and Darkness, Equal Road, Minimum Illumination/ The average illumination road is larger than L3 and the other roads are larger than 1:4 (the study of the "Taiwan Ding" (1986) and the Ministry of Internal Affairs and Construction of the Ministry of Internal Affairs and the Department of the Ministry of the Interior and the 14th Symposium on Lighting Technology and Marketing (2002) )) After the relevant road test, you can calculate the lumen value required for the illuminated road. The formula for calculating the resistance is as follows, where F: the luminous flux required by the light source, in lm position E: the average illuminance required by the road , with the Lux position S: with a lay length, with m bits W: road road, with ra position N: illumination rhyme arrangement, or è…½ intersection é‚‹ 1, è…½ phase or central separation arrangement = 2 CU: with illumination rate MF : After calculating the required lumen value, you can determine the required LED grid and indium. The (3) (with illumination rate) and MF (guilty) need to look up the table to know what his value is, (3) It is determined by the W/H ratio check list. After 0.20.20.4, it can be tested as shown in 2; MF can be determined in Table 4. 2 - General lighting rate (W/H) traffic volume (Taiwan / æ›°) city road suburban road table 4 guilty (reported from the Taiwan Department "Lu Yun Ding" (1986)) to the usual 8 meters of the city For the case of residential green roads, the illuminance required for the construction is 7.5Lux, the uniformity of light and dark is 1:4, and the porphyrins are arranged with the masking type. The table 1 can be found to have a height of 8 meters. Rhyme 24 meters. In addition, the value of the table (3) is 0.3, the MF value is 0.7, and the length of the arm is 2 meters. After the calculation, the required luminous flux lumen value is 6860 lm. If the efficiency of the LED is 601 m/W, the LED of 3 W is true. It requires ä¿38 indium. The full divergence angle in the direction of the road is calculated to be 112 degrees; the angle required for the road direction is ä¿ 14 degrees, and the full office angle is 50 degrees. If you want to have a uniform illuminance on the road you are lighting, you need to use the optical components to align the light pattern of the LED. Compared to the components that use the secondary light, you can better use the LED on the LED package. The few peaks, weights and costs are the way to hope. The light-type Lambertian (test 3) from the LENSLH on the LH) was used to distribute the non-expendable light-type fractions, and the smear-type LENS method was used for the purpose of the injection. A non-contributory type of sealed LENS is necessary. Before the rhythm of the road degree to accompany the road rhyme height and distance, I can calculate the light divergence angle required by the road light source, and the divergence angle in the direction of the road accompanying the road must be different. The light in the direction of the road needs to have a diagonal angle so that the light energy illuminates in the center of the road, and in the direction of the road and the uniformity of the illuminance, the light in the 呃 direction is at a large angle except for the large light divergence angle. The luminosity of the domain should not be too weak. It is better to have a photometric distribution characteristic like Batwing (Test 4) or Side-emitting (Test 5). (3, 4, 5 quoted from Lumileds's product) The typical Batwing-out characteristic Lens, as shown in the following 6, shows that the light emitted by the chip at a large angle is collected by the reflection and refraction of CupandLens. In the mid-angle domain; the near-optical part of the small-angle domain is not affected by the Lens shadow, and the part of Teng Guangxuan is refracted by Lens to the mid-angle domain of the rhyme. The LED-enclosed Lens has a curved surface that can generate total internal reflection, which can be totally reflected from a small angle near the pupil, while the light from a large angle is refracted by the DrumLens, so that the Chip does it. The light can be concentrated in the large angle of rhyme by the principle of sealing Lens. There are many ways to distribute the non-fee-like light distribution. First, the first available method is to use only the upper part of the seal to have different surface characteristics. The rhythm in the direction of the road has the characteristic of convex and concave, so that the beam of the central bite can be broadcasted in a large angle direction, and the light that is scattered in a large angle direction can be received in a small angle direction. The rhythm in the direction of the Luo is different. To make the beam oblique at an angle, it is feasible to use the oblique refraction surface above the wafer or the oblique refraction surface of the curve to complete the angle of the beam. It is also possible to use the oblique surface to adjust the direction of the road. The light is scattered to make the rhyme more perfect. The characteristic surfaces of the directions are fused together to obtain the desired LENS surface. In the following 8 cases, the LENS robbery lung characteristic surface makes the light-emitting type have non-fee-characteristic characteristics, and the light distribution such as 9 can be obtained, and the light type has a non-exhaustive distribution characteristic. 9 The non-extraordinary light pattern distribution Another rhyme method is that the corner of the road direction uses the rhyme of the belt, that is, the light type that is actually sealed out only takes the direction of the light distribution in the direction of the road. The angle, the angle of the road direction is made by slanting into the desired angle.呃 is a relatively easy way to make it. It is only necessary to use the desired surface in the len len 去 to the ideal light distribution, which can reduce the rhythm of the rhyme. Making good use of the optical model can help me to express the desired LENS. The commonly used 篦 includes V and ASAP, etc. Each set has its own characteristics, which requires the 14th strait lighting technology and The marketing seminars are very helpful in removing the tools used in the lining. It is also possible to use the sounds of the roads to be used for the roads of the seals. First, the light source is arranged in a row, and then the height position and the arrangement of the distances are arranged to be installed, and then the road is fixed. After receiving the surface, the model is used to see if the illuminance distribution on the road surface meets the requirements of the above requirements, such as the required average illuminance, and the darkness uniformity, etc., so as to avoid the rhythm caused by the rhyme. cost. In the case of sealing, the desired distribution of the light-emitting type can save the cost of the secondary optical component, and can also avoid the situation that there are fewer LED faults and the light distribution pattern is needed. If you want to increase the brightness of the road lighting, you only need to Increasing the indium of the LED can be made into a pipe. The light characteristics of the LED light source are different from those of the water used on the road, and it has more space than the LED light source. With the sealed LENS, the light shape can be shaped into a desired shape, and the peak weight of the LED is good. It can provide a larger rhyme, which is not used in the field of illumination except for the use of the display, and does not provide a new source of more protection. Jacquard Weave,Jacquard Textile,Jacquard Pattern,Cotton Jacquard Fabric SHAOXING SHUKE IMPORT AND EXPORT CO.,LTD , https://www.shuketex.com