TWI335398B - Led lighting method and device - Google Patents

Description

1335398 IX. Description of the invention: [Technical field of the invention] The present invention relates to an illumination method and device for LED (Light Emitting Diode) lamp partition illumination, especially a metal with LED and lens The barrel, the flexible modular design and the high-performance combination lighting method and device thereof. ~ [Prior Art] Traditional street lamps, such as high-pressure mercury lamps, need to rely on additional reflection devices, such as reflectors, lampshades, etc., and the waste of the light source can be as high as 40~60%; while the LED light source can directly illuminate 80~90% of the luminosity. On the target, the LED light source has good superiority compared with other conventional light sources under the same lumen value. At present, LED lighting has become the mainstream of the era of green lighting and energy saving, mainly used in street lights, decorative lighting, night scene engineering and other products. In view of the many advantages of LED, the industry has developed LED street lights. Due to the limitation of LED optical power, the LED street lamps of the prior art generally have a plurality of LEDs vertically fixed on a flat plate, so that multiple LEDs emit concentrated light and multiple spots on the illuminated area ( The illuminated units) overlap each other to increase the brightness. Due to the small illumination angle of the LED, the illumination surface radius of the LED street light is small. When the height of the street light is 5.5 m (meter), the radius of the illuminated surface is only 12 m, the center brightness is above 40 LUX (lumen), and the brightness of the edge is only 3 LUX, and the brightness is brightest at the center of the illumination. Dark situation. If the street lamp is more south (such as 12 m for the expressway) and the interval is larger (the interval between the two lights on the high-speed road is 30 m), the middle part of the two lamps has no light at all. Since the LEDs are all mounted on the flat plate of the lamp holder, and the exposure angle of the LED is limited, the illumination range of the LED street lamp is small, and the high-power multiple LED street lamps or the distance between the street lamps must be used to solve the brightness and illumination. The problem is small, so it will increase the cost. In addition, the high-power LED street lamp still has the problem of heat dissipation, which affects the brightness and life of the LED. The greater the power, the greater the heat dissipation required by the 1 1335398. At the same time, the front-end led lights generally have large and 'cumbersome problems, making the cost of installation and work always high. • An LED street light from CREE Company of the United States is shown in Figure 25. The street light is symmetrically distributed on the “V” plate of the lamp holder. The inner LED is the LED that is set to vertically illuminate the bare lamp. The remaining LEDs are respectively It is placed at different angles on the "V" plate of the lamp holder, and a lens cover is provided outside the lamp cap, which can only increase the illumination range in a single direction of the "V" plate. Since the LED of the street lamp only changes the illumination angle in one direction, most of the illumination will overlap; if you do not want to overlap, you need to increase the distance between the LEDs, thus increasing the volume and the heat shield that needs to set a larger insect. It is impossible to adjust the height, brightness and area of the road surface to the road surface. In summary of the above description, the prior art has the following disadvantages: 1. The LED lighting device is a single or V-shaped planar design, which is limited by the overlapping and concentration of light emitted by a plurality of LEDs on the illuminated area, which may result in The intensity of the illumination center and the surrounding part is not uniform; 2. In order to avoid affecting the brightness and life of the LED, the LED lighting device requires a very complicated heat dissipation structure, and the volume, weight and manufacturing cost thereof are relatively increased. SUMMARY OF THE INVENTION An object of the present invention is to provide an illumination method and apparatus having a large illumination range, a relatively uniform brightness, a modular illumination structure, and a simplified heat dissipation treatment, and using LED as a light source. Another object of the present invention is to provide an illumination method and apparatus for LEDs that can be adjusted for changes in the height, brightness, and area of a road surface that illuminate the road surface. In order to achieve the above object, an illumination method using LED as a light source comprises the following steps: (1) LED is placed in a cylindrical metal structure, and a lens device is arranged at the front end to be combined into an LED lamp tube; 1335398 ( 2) Multiple LED lamps, the installation 'arranged in an array on the fixed plate; ' (3) The LED block illuminates the illumination block on the full illumination area as its spot, and the illumination area is divided into a plurality of illumination units. ;

(4) Set the corresponding illuminated unit and illumination angle of each LED light tube for different illumination distances and brightness of the illuminated unit; ' (5) The properly formed LED light bulbs can produce a spot that can be completely covered. The corresponding illuminated unit; (6) the LED lamp group of each column or row of the LED lamp module distributed in the array may present a fan-shaped or hourglass-shaped beam; in step (3), in one There is a spot or a plurality of spots on the illuminated unit, and the overlapping spots enhance the brightness on the illuminated unit. In step (4), for different illumination distances, the LED bulb can be illuminated to form a spot of the same size and just cover its corresponding illuminated unit. If the zoom mode is used, when the LED is located between zero and twice the focal length of the convex lens, by adjusting the distance between the LED and the convex lens device, the smaller the pitch is, the larger the spot is formed, and the smaller the pitch is, the smaller the spot is formed; The distance between the LED and the lens device is adjustable by the sleeve structure. If a total reflection lens with different beam focusing angles is used, in order to make different illumination distances produce the same size of the spot, the farther the distance is, the smaller the beam focusing angle is needed; the closer the distance is, the larger the beam needs to be used. angle. The appropriate LED lamp illumination angle in step (4) is intended to enable the LED lamp to cover its spot with its corresponding illuminated unit. A plurality of LED lamps are evenly distributed in an array, mounted on a fixed plate, and combined into an LED lamp module, a column in the LED lamp module or a group of LED lamps. For the LED light module or one of the LED light sets, the illumination center is the illumination geometric center position of all the LED lights, and the illumination center is the position of the illumination center corresponding to the illuminated area. In order to simplify the calculation of the illumination angle of the LED lamp, the LED lamp module whose array is distributed in the two-dimensional plane space is simplified into two LED light tube groups of one-dimensional space for explanation. When an LED tube group has an odd number of LED tubes, 7 the LED tube in between will be vertically illuminated downwards i. Taking the illumination center as a consideration, the LED lamps on both sides of the LED lamp are arranged symmetrically in a symmetrical manner, and are radiated outward or inward, so that the LED lamp module emits a fan-shaped or hourglass-shaped beam. The angle formed by each LED lamp and the illumination center in the normal (vertical) direction of the fixed plate is the irradiation angle α, which increases step by step from the inside to the outside. If the LED lamps are radially outward, the relationship between the illumination distance X of each LED lamp and the angle α is: the irradiation distance x=(N_M)/sina, where N is the center of the corresponding spot of a certain LED lamp tube. The distance between the point and the illuminated center, M is the distance between the LED light tube and the illumination center, and the angle α is calculated by the calculation formula, thereby determining the illumination angle of the LED light tube. If each of the LED lamps is converged inwardly, the relationship between the illumination L and the inflammation angle α of each LED lamp is: the illumination distance L=(y+y 1 )/sina, where y is a certain LED lamp. The cylinder corresponds to the distance between the center point of the spot and the center of illumination, and yl is the distance between the LED lamp and the illumination center. The angle α is calculated by the formula, thereby determining the illumination angle α of the LED lamp. Using the above method, the present invention devises an illumination device using an LED as a light source, comprising an upper cover, a lamp holder and a light-transmitting lamp cover, which can be connected to the lamp post through the lamp holder and placed on the ground. The LED lamps are mounted on a fixed plate and combined into an LED lamp module and placed on the lamp holder. In order to make the LED lamp have different irradiation distances, the same size spot can be generated, just covering the corresponding illuminated unit, and the lens device at the front end of the LED lamp can be realized by zooming or changing the beam angle. If the zoom mode is used to change the size of the spot, the LED lamp barrel may include two tubes, the LEDs are disposed in a tube body, and the lens device is located in front of the LEDs, and the tube bodies are sleeved together. The lens device may be a single convex or double mirror, and the distance between the lED and the convex lens may be adjusted relative to the sliding tube body, between the focal length of the convex lens and the double focal length. The size of the spot is changed by changing the beam angle on the right, and the lens device is an lenticular lens placed in the illumination front end of the LED lamp. If the irradiation distance is farther, select 1335398 to select the smaller beam focusing angle; otherwise, ‘the closer the irradiation distance is, the larger the beam focusing angle can be selected. ‘The LED lamps are evenly distributed in an array. According to the above method, the lamp can be mounted on the fixed plate at an appropriate illumination angle α. The utility model is characterized in that: when the volume LED light tube group has an odd number of LED light tubes, the middle LED light tube will be vertically irradiated; the remaining LED light tubes will be considered by the illumination center, on both sides. The LED lamps are arranged symmetrically in sequence, and are radially outward or convergent. The solid plate can be flat.

The fixing plate can adopt the design of the block structure, and is assembled by a plurality of tiles, each of which is provided with a bump and a card slot which can be connected with other blocks, and the block can be a curved surface. It may be a flat surface, and the block is provided with at least one mounting hole for fixing the lamp. Therefore, the fixing plate is assembled by a plurality of blocks and two block fixing frames, and the block is a strip body, and the two ends are provided with bumps for fixing on the block fixing. The front end of the lamp holder is provided with a light-transmitting lamp cover. The light-transmitting lamp cover is embedded in the lens, and the J is located in front of the LEDs and perpendicular to the beam of the LED. (4) Free secondary optical guidance

The upper 2 light attenuation, the lens device mounted on the front end of the LED lamp, can be replaced by a lamp cover and a lens to improve light efficiency. The lamp holder is provided with an air inlet at the lower end of the side, and a filter screen is disposed at the upper end of the other side and is respectively installed at the air inlet and the air outlet. The rushing von is placed in the metal lamp with a separate heat dissipation function, and the use of pulse = and natural convection of the lighting device can simplify the complicated heat dissipation process. LED S|^LEI) The series circuit uses a bypass circuit. Even if there is a Feng φ circuit, the short circuit through the Zener can ensure that other LEDs in the [ED A] circuit can still be used. normal work. After using the above technical solution, the LED lamp of the present invention divides the illuminated area into a plurality of illuminated units in the fixed plate led# = ί cloth, and uses zoom or change beam focusing in front of each foot s. The angled lens means adjusts its illumination angle a such that the LED light bulb forms the same spot on the illuminated area 'just covering its (4) illuminated unit. Since the spot is a convergent light of the coffee, rather than a divergent light, the brightness is more uniform, and the spots may be connected or overlapped between the spots, so there is no dark area, so no blind spots are illuminated. [Embodiment] The present invention will be further described with reference to the accompanying drawings. As shown in Fig. 1, an illumination method using LED as a light source in the present invention includes the following steps: (1) LED is placed in a cylindrical metal In the structure, the front end is provided with a lens device (not shown), which is combined into an LED lamp tube 1; (2) a plurality of LED lamp tubes 1 are mounted on the fixed plate 2 in an array; (3) the LED lamp tube 1 is irradiated The illumination block on the illuminated area 4 is its spot, and is divided into a plurality of illumination units 3 by the illumination area 4; (4) For each illumination distance and the brightness of the illumination unit 3, each [ED lamp 1 is set Corresponding to the illumination unit 3 and the illumination angle α; (5) The appropriately adjusted LED lamps 1 can generate a spot that completely covers the corresponding illuminated unit; (6) The array of LED lamp modules Each column or row of LED lamp sets ' can present a fan-shaped or hourglass-shaped beam; to simplify the calculation of the LED lamp illumination angle α, the array of LED lamp modules distributed in a two-dimensional plane space is simplified to two A column of one-dimensional space or a group of LEDs of a row is used for illustration. When the step (5) changes the size of the spot by using a zooming method, the lens device is a single convex or lenticular lens, and the distance between the convex lens and the LED lamp tube i is adjusted such that the LED is located between the focal length of the convex lens and the focal length of the double lens. After the LED beam is focused by the convex lens, a spot of the same size is formed to cover the corresponding illuminated unit 3. The distance between the LED and the lens device can be adjusted by the structure of the sleeve. ^The tubular LED lamp barrel shown in Figs. 2 and 3 includes a tube body 11 and an LED (not shown in the lenticular lens (not shown) and the tube body 12, and the LED is disposed in the tube body 11 = the convex lens is disposed in the tube body 12 The lens is located before (4) (the figure is not shown: the body 11 and the tube body 12 are sleeved together, and can be relatively slid to adjust the spacing of the LED wide lens, so that the LED is located at the focal length of the convex lens to the focal length of twice the focal length. 4 'LED lamp tube 1 can be mounted on the fixed plate 2, the angle formed by the direction of each LED lamp tube 1 and the normal (vertical) direction of the fixed plate 2 is ..., the angle of incidence α. When the body η and When the distance between the tube body 12 is elongated, the spot formed by the lED on the illuminated surface becomes smaller; when the distance between the tube body 11 and the tube body 12 is decreased, the spot formed by the LED in the illuminated area becomes larger. "Although step (5) As shown in Fig. 5, the lens device is a total reflection lens with different beam focusing angles. The farther the illumination unit 3 is from the illumination center 6, the farther the illumination distance is, the smaller the beam focusing angle needs to be. On the contrary, the closer the illumination unit 3 is to the illumination center 6, the closer the illumination distance is, so the beam is focused. The angle needs to be larger. The illustration is symmetrical about the illuminated area, so it is only explained by the left side of the illuminated area. The distance from the illuminated unit 3 to the illuminated center 6 is far and near. The beam focusing angle is from small to large, which are 4.57, 5.15°, 5.80, 6.52, 7.29, 8.08, 8.86, 9.53, 10.05, and 10.32°, so that each LED lamp is focused by the lens. The illumination beam can form a spot of the same size and cover the corresponding illumination unit 3. The illumination angle α of each LED lamp 1 can meet the following conditions according to one of the LED lamp sets on the fixed plate 2: 1) When there are an odd number of LED lamps, the LED lamp 1 of the illumination center 5 on the fixed plate 2 is vertically irradiated downwards. (2) The illumination lamp center 5 is centered, and the LED lamps 1 are symmetrically arranged. Radially outward or inwardly converging, "the angle formed by each LED lamp 1 and the illumination center 5 in the normal (vertical) direction of the fixed plate 2 is gradually increased from the inside to the outside as the irradiation angle α'; (3) As shown in Figures 6, 7, 8, and 9, the light path of the LED tube group forms a divergent 13353 98 fan beam. The relationship between the irradiation distance X of each LED lamp '1 and the irradiation angle α is: the irradiation distance X=(NM)/sina, where Ν is the center point and the receiving point of the spot 3 corresponding to a certain LED lamp tube 1. The distance between the illumination center 6 and the distance between the LED lamp tube 1 and the illumination center 5 is calculated by the calculation formula to determine the angle of incidence a, thereby determining the illumination angle a of the LED lamp tube 1. The LED lamp tube 1 of Fig. 6 is illuminated. The angle a is mounted on the fixed plate 2, and the LED lamp 1 of Fig. 9 is vertically mounted on the fixed plate 2 using one side of the steering joint, and the angle of the other side of the steering joint is the irradiation angle a. (4) As shown in Figs. 10, 11, 12 and 13, each of the LED lamps 1 is symmetrically arranged with the illumination center 5, and is sequentially converged inward. The light path of the LED tube group is first concentrated and then spread out to form an hourglass-shaped beam. The relationship between the irradiation distance L and the angle a of each LED lamp 1 is: the irradiation distance L=(y+yl)/sina, where y is the distance between the center point of the spot 3 corresponding to a certain LED lamp 1 and the illumination center 6. And yl is the distance between the LED lamp 1 and the illumination center 5, and the angle a is calculated by the calculation formula, thereby determining the irradiation angle a of the LED lamp tube 1. Therefore, the present invention is an illumination method using an LED as a light source, and is characterized in that, in the present invention, the illumination area 4 is divided into a plurality of illumination units 3 and a number of spots corresponding to the LED lamp 1; A lens device is disposed in front of the LED lamp tube 1, and a total reflection lens of different beam angles is selected by zooming or adjusting, and an appropriate illumination angle of the LED lamp 1 is adjusted, so that the illumination beam of the LED lamp tube 1 is formed on the illuminated area 4. A spot of the same size covers its corresponding spot 3. An illuminated unit 3 may have a spot or a plurality of spots. When there is a plurality of spots on the illuminated unit, the overlapping spots may enhance the brightness and elastically configure the number of overlaps of the spot in a certain illuminated unit 3 as needed. . In the present invention, the fixing plate 2 may be in the form of a flat plate or an arc; however, the irradiation angle a of the LED lamp 1 is installed in the two-dimensional space of the fixed plate 2, and it is necessary to satisfy the above (3) and (4, respectively). The condition is such that the spot generated by the illumination of the LED lamp 1 can just cover the corresponding irradiation unit. 12 1335398 Since the spot is a LED that collects light instead of diverging light, the brightness is relatively uniform. The size of the spot is controlled by zooming or by using a total reflection lens with different beam angles, and the spots may be edge-connected or overlapped. The illumination angle α of the LED lamp 1 is adjusted so that each illuminated unit 3 on the illuminated area 4 can be covered by a spot formed by the corresponding LED light bulb, so that the illuminated area 4 has no dark area. There is no illuminating dead angle. Taking idle highway lighting as an example, the distance between the two lights on the highway is 3〇m, and the height of the street lamp is 12m. The street lamp is required to illuminate the rectangular area with a length of 15m and a width of about 6m. The LEDs of 1 watts of 80 watts are arranged in four rows, and the direction of the long face is consistent with the direction of the depth of the road, and the LED device forms a spot of not less than 1.2 m on the road surface by the lens device, and when all the spots are arranged together, The road with a distance of 3〇111 can be completely illuminated; the brightness of the farthest spot is not less than 1〇LUX, the brightness of the center spot is not less than 2〇LUX, and the edge and center brightness ratio is not less than 1: 2 or 1. : 3 standard requirements. With reference to the accompanying drawings, in detail, several implementations of the LED illumination device used in the above illumination method are as follows: Embodiment 1: Each LED lamp tube 1 is symmetrically disposed on the fixed plate 2 centering on the illumination center 5, and It is emitted outward in turn. As shown in Fig. 6 or 9, the fixing plate 2 is in the form of a flat plate, and a plurality of sets of 25 different angles of the LED lamp 1 are provided. Fig. 9 is a case where the LED lamp 1 is connected to the fixing plate 2 by using a steering joint. Each of the LED lamps 1 is symmetrically disposed with the illumination center 5 as a center, and is radially outward, and the illumination angle α of each of the LED lamps 1 and the illumination center 5 is gradually increased from the inside to the outside, and is as described above. The calculation formula χ=(Ν_Μ)/ since, according to the irradiation distance χ, can calculate [the illumination angle of the ED lamp j § the illumination device is 12 m, and the ground irradiation distance is 30 m, with 25 groups per group. LED is taken as an example. The LED lamp 1 located in the illumination center 5 is number 1. The other LED lamps 1 are sequentially numbered 2, 3, ..., 13. The data of the illumination center 5 and the illumination angle and the illumination distance are as follows. :(Because it is symmetrical setting, only half is used for explanation) 13 1335398 No. of irradiation angle (unit · · skin) Irradiation distance (unit 1 0.00 12.183 2 5.77 12.244 3 11.44 12.425 4 16.89 12.720 5 22.05 13.122 6 26.87 13.621 7 31.32 14.207 8 35.40 14.809 9 39.12 15.597 10 42.50 16.380 11 45.55 17.215 12 48.32 18.090 13 50.83 19.000

Embodiment 2: Each of the LED lamps 1 is symmetrically disposed on the fixed plate 2 with the center of the illumination center 5 as a center, and is converged inwardly in order.

As shown in Fig. 10 or 12, a plurality of sets of 25 LED lamps 1β of different angles are provided on the fixed plate 2, wherein the fixed plate 2 of Fig. 10 has an arc shape and the fixed plate 2 of Fig. 2 has a flat plate shape. Each of the LED lamps i is centered on the illumination center 5, and is arranged symmetrically and sequentially inwardly converging, and the illumination angles α of the LED lamps i and the illumination center '5 are gradually increased from the inside to the outside' and as above The calculation formula L=(y+yl)/sina, according to the irradiation distance L, can calculate the illumination angle a of the LED lamp cartridge 。. When the height of the lighting device is 12m', the ground irradiation distance is 3Qm, taking 25 LEDs in each group as an example, the coffee lamp tube i located in the lighting center 5 is the serial number], and the other LED light tubes 1 are sequentially numbered 2, 3, The data of the irradiation distances of Zhao ^ fi7, a, ^ -j- 13 八 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

No. Irradiation clamp "ΙΓΤΙΓϊ H- 1 (center) 〇·〇〇2 5.57 3 11.03 4 16.30 5 21.29 6 25.96 7 30.28 8 34.25 9 37.88 10 41.18 11 44.17 12 46.89 13 49.35 Irradiation distance (unit: meter) 12.000 12.049 12.218 12.494 12.870 13.338 13.887 14.509 15.194 15.934 16.721 17.549 18.416 As shown in Figures 14 and 15, the fixed plate 2 is a curved plate, which is installed in the lamp holder 25, and is provided with a waterproof rubber strip 26 in front of the lamp holder 25 and The light cover 27 is provided with a plurality of mounting holes 24, and the tail portion 13 of the LED lamp tube 1 is fixed in the mounting hole 24 of the fixing plate 2.

Embodiment 3: The fixing plate 2 of the present invention is assembled from a plurality of blocks 21. As shown in FIGS. 16 and 17, each of the blocks 21 is provided with a bump 22 and a card slot 23 which are connectable with other blocks, and the block 21 is provided with at least one mounting hole 24, and the block 21 is provided. The surface can be curved or flat. The block 21 may have only a single mounting hole 24 as shown in Fig. 16, or may have a plurality of mounting holes 24 as shown in Fig. 17. In use, the LED lamp holder 1 is fixed in the mounting hole 24, and a plurality of blocks 21 are sleeved together. Embodiment 4: The LED lamp 1 is modularly fixed on the fixed plate 2. As shown in Figures 18, 19 and 20, an LED lighting device of the present invention comprises a fixing plate 2 and a group of 20 LED lamps 1 having different illumination angles α, wherein the fixing plate 2 is composed of 20 sub beams 211 and 2 The main beam 281 is assembled. The 15 I ____ _ 1335398 - the sub-beam 211 is a strip-shaped body. The two ends are provided with bumps 22 for fastening on the main beam 281, and five LED lamps are arranged thereon. a fixed mounting hole 24, the central mounting hole 24 allows the LED lamp 1 to be vertically illuminated downward, and the inner sides of the mounting holes 29 on both sides are inclined at different angles, symmetrically arranged with the illumination center 5, such that Each of the LED lamps 1 is radially outwardly or inwardly converged; the main beam 281 is provided with 20 card holes 29 which are connected to the bumps 22 of the sub beam 211, and the card holes 29 are at different angles. The arrangement is such that each of the sub-beams 211) is centered on the illumination center 5, and 10 sub-beams 211 are symmetrically disposed on both sides, and are radially outward or convergent. The LED lamp 1 in this embodiment is fixedly mounted on the sub-beam 211, and the illumination angle α is not adjustable, and the inclination of the inner side of each mounting hole 24 is completely controlled and the card hole 29 is set at different illumination angles α. Therefore, the LED lamps 1 on both sides are symmetrically arranged, and are radially outward or convergent. Embodiment 5: In the present invention, if a cylindrical LED is used, each LED lamp 1 is equivalent to one LED flashlight. Since the outer casing is usually made of a metal material having a good heat dissipation effect, each of the LED lamps 1 is mounted on the fixed plate 2 at an appropriate interval, and each of the LED lamps 1 is completely exposed to the air. Therefore, the present invention An LED lighting device can eliminate the heat sink, not only can reduce the cost, but also can make the LED road lamp smaller in size, lighter in weight, and easier to install and maintain. Embodiment 6: The present invention selects a lamp cover 27 with a lens. When ordinary flat glass is used as the lamp cover. When the LED lamp 1 is angled, the reflection will not only cause reflection, but also refraction, and the light transmittance is poor. The angle of the LED lamp 1 is larger, and the refractive index is higher. Large, the poorer the light transmittance. As shown in FIGS. 21 and 22, the present invention includes a lamp holder 25, a fixing plate 2, an LED lamp holder 1 and a light-transmitting lamp cover 27, wherein the light-transmitting lamp cover 27 is provided with a lens 271 perpendicular to the beam of each of the LED lamp barrels 1. . The lens 271 may be mounted on the transparent cover 27 by means of hot melt, ultrasonic fusion or pressure ring dispensing, or may simultaneously project the transparent cover 27 with the lens 271. 16 Since the light beam emitted from each LED lamp 1 is perpendicularly irradiated to the lens 2, the light source generates a refracted light loss $, thereby making the light transmissive lamp cover 27 of the present invention have the most (four) light transmission effect. ^ Stayed, in which the light-transmitting lampshade 27 can be split into several segments. 0 22 light transmissive lamp cover η = center residual left and right symmetry split into 3 segments, solving the problem that the lens 271 has too much angle, the size of the translucent lamp cover 27 is too large, resulting in mold demoulding _ and higher cost; and let the product _ group 'Let's allow different models to share. Embodiment 7: An air inlet 252 and an air outlet 253 are provided in the lamp holder 25 in the illumination splitting of the present invention, and a filter cover 251 is mounted thereon. As shown in Fig. 24, the air inlet 252 is provided at the lower end of one side of the lamp holder 25, and the air outlet 253 is provided at the upper end of the 3 side, and the inlet and outlet ports are provided with 251. According to the principle of rising hot air, natural convection generates an air circulation in the lamp holder. The air enters the lamp holder 25 through the air inlet 252 and discharges the hot air through the air outlet 253, thereby lowering the temperature of the LED lighting device. The filter cover 251 can have the function of preventing insects and dust. If it is under the impact of rain, it can be taken away, and the debris on the cover 251 can be used for automatic cleaning. Through = Example 8. Through the drive circuit to control the voltage applied to the lamp, u two lights, can achieve energy-saving purposes. Because the LED lighter forms a concentrated spot of 9 degree average sentence on the illuminated surface, the human eye can not detect the stroboscopic work, and the DC pulse voltage is above 5 GHz, and the power loss on the Led lamp 丨 will be large. To reduce 'making LED lighting devices more energy efficient. Example 9: The LED 81 in series uses a bypass circuit, and a Zener diode 82 is connected in parallel in the constant current circuit, as shown in Figure 24, even if it is connected in series. Calling, does not affect the other (four) lighting, reducing the number of repairs. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of street lighting of the present invention. 2 is a schematic view showing the structure of an LED lamp cylinder of the present invention. 1335398 ψ 1 >} Fig. 3 is a schematic view showing the action of adjusting the distance between the LED and the through-light of the LED lamp according to the present invention. Fig. 4 is a schematic view showing the structure in which the LED lamp cylinder of the present invention is mounted on the fixing plate and radially outward. Fig. 5 is a schematic view showing the structure of a LED lamp cylinder of the present invention using different beam angle total reflection lenses. Fig. 6 is a schematic view showing the structure of the LED lamp tube in the radial direction of the present invention. Fig. 7 is a schematic view showing the arrangement of the optical path of the LED lamp tube in the radial direction of the present invention. Fig. 8 is a schematic view showing the relationship between the illumination angle of the LED and the irradiation distance of the LED lamp tube arranged radially outward according to the present invention; Fig. 9 is a schematic view showing the structure of another embodiment in which the LED lamp of the present invention is radially outwardly disposed. FIG. 10 is a schematic structural view showing the LED lamp cylinder of the present invention being arranged in an inward manner. Fig. 11 is a schematic view showing the optical path of the LED lamp cylinder in a converging manner in the inward direction of the present invention. Fig. 12 is a schematic view showing the structure of another embodiment of the arrangement of the light path of the LED lamp cylinder in the inward direction of the present invention. Fig. 13 is a schematic view showing the relationship between the illumination angle of the LED and the irradiation distance in which the LED lamp cylinders are arranged in a converging manner in the present invention. Figure 14 is an exploded perspective view of the LED lighting device of the present invention; Figure 15 is a schematic view showing the assembly of the LED lighting device of the present invention. Figure 16 is a schematic view showing the structure of the fixing plate of the fixing plate of the present invention; Figure 17 is a schematic structural view of the fixing plate of the third embodiment of the present invention; Figure 18 is a schematic view showing the structure of the main beam and the secondary beam of the fixing plate according to the fourth embodiment of the present invention; FIG. 20 is a schematic view showing the assembly of the sub beam and the LED lamp according to the fourth embodiment of the present invention; FIG. 21 is a perspective view of the lamp holder according to the sixth embodiment of the present invention; FIG. 23 is a schematic view showing the natural convection structure of the lamp holder according to the seventh embodiment of the present invention; FIG. 24 is a connection diagram of the Bypass circuit used in the present invention; and FIG. 25 is a "V"-shaped LED of the American CREE company. Street lights and lighting schematics. 18 1335398 [Description of main component symbols]

1 LED light tube 11 LED light tube body 1 12 LED light tube body 2 13 LED light tube tail 2 fixed plate 21 block 211 sub beam 22 bump 23 card slot 24 mounting hole 25 light frame 251 over 泸, cover 252 Air inlet 253 Air outlet 26 Waterproof strip 27 Light-transmitting lamp cover 271 Lens 28 Block holder 281 Main beam 29 Card hole 3 Illuminated unit 4 Illuminated area 5 Illumination center 6 Illuminated center 81 LED (light-emitting diode) 82 Zener Diode (Zina second body)

19

Claims (1)

Patent application scope: ...................-- 1. An illumination method using LED as a light source, the method comprising the following steps: (a) LED placement In the cylindrical metal structure, the front end is provided with a lens device and combined into an LED lamp tube; (b) a plurality of LED lamps are mounted on the fixing plate of the lamp holder in an array; (c) the LED lamp is illuminated to be illuminated The illumination block on the area is its spot, and the azhao area is divided into a plurality of illumination units; (d) setting the corresponding illumination unit and illumination angle of each led lamp for different illumination distances and brightness of the illuminated unit; (e) Each appropriately adjusted LED lamp can produce a spot that completely covers its corresponding illuminated unit; (Θ such that the columns or rows of LED lamps distributed in the array can present a fan-shaped or hourglass-shaped beam 2. The method of obtaining a uniform illumination result. 2. The method of claim 2, wherein the corresponding illumination unit of each LED lamp in the step (d) is provided on an illuminated unit. A spot or multiple spots, and overlapping spots enhance brightness. The method of claim 1, wherein the step (d) of setting the illumination angle of each of the LED lamps means that the LED lamp modules are arranged in an array on the solid plate, wherein a column is arranged. Or a behavior of an LED light tube group, for the LED light tube module or a certain LED light tube group, the illumination center is the illumination geometric center position of all the LED light tubes, and the illumination center is the illumination center 1335398 lf °[y) - corresponding To the position of the illuminated area; in order to simplify the calculation of the illumination angle of the LED lamp, the LED lamp module distributed in the two-dimensional plane space is simplified into a one-dimensional space LED lamp group for explanation; in order to simplify the LED lamp The calculation of the illumination angle of the cylinder, the LED light bulbs uniformly distributed in the two-dimensional plane space, simplified into two LED light tube groups of one-dimensional space for explanation; when considering the illumination center, each LED light tube It is symmetrically arranged on both sides, and is radially outward or convergent in the same direction. The angle formed by each LED lamp and the illumination center in the normal direction of the LED lamp fixing plate is the irradiation angle α, from inside. Increase to the outside level. 4. The method of claim 3, wherein the LED lamps are radially outward, the relationship between the length X of each LED lamp and the illumination angle α is: irradiation length X=(NM) /sina, where Ν is the distance between the center point of the illuminated unit corresponding to an LED light tube and the illuminated center, Μ is the distance between the LED light tube and the illumination center, and the LED light is determined by the calculation of the formula The irradiation angle α of the cylinder. 5. The method according to claim 3, wherein each of the LED lamps is converged inwardly, and the relationship between the length L of each LED lamp and the irradiation angle α is: irradiation length L=(y +y 1) / sina, where y is the distance between the center point of the illuminated unit corresponding to a certain LED and the illuminated center, and yl is the distance between the LED light tube and the illumination center. The calculation is based on the calculation of the formula. Irradiation angle of the cylinder 21 III-------- ——......... III-------- ——.........1335.398 6. If applying The method of claim 1, wherein each of the appropriately adjusted LED lamps in the step (e) is a lens device that can use a single convex or lenticular lens to adjust the distance between the convex lens and the LED to make the zoom. The LED is located between the focal length of the convex lens and twice the focal length, and the spacing can be adjusted by the sleeve structure. 7. The method of claim 1, wherein each of the LED lamps appropriately adjusted in the step (e) is provided with a total reflection lens of a different beam focusing angle whose focal length is not adjustable. 8. A lighting device in an illumination method using LED as a light source, comprising: a light stand, which is composed of an upper cover, a fixed plate and a transparent light cover, and is provided with an air inlet and an air outlet, and can connect the lamp post to the ground Or embedded in the roof; a fixed plate on which a plurality of LED lamps can be arranged in an array and placed in the lamp holder; 'an LED lamp module, the LED is placed in a cylindrical metal structure, the front end A lens device is provided to be combined into an LED lamp tube; a plurality of LED lamps are arranged in an array on the fixed plate to form an LED lamp tube module; and a column or a row in the LED lamp module is an LED lamp The zoom function of the lens device is that the cylindrical metal structure of the LED lamp tube comprises two tubes, the LED is disposed in a tube body, and the convex lens is disposed in another tube body, and the convex lens is located at the LED Previously, the two tubes were sleeved together and slid relative to adjust the distance between the LED and the convex lens, 22 1335398 For example, the monthly division causes the LED to be located between the focal length of the convex lens and the focal length of the double lens. The width of the sleeve is adjustable, so that the spot of the LED lamp can completely cover the corresponding illuminated unit. A light-transmitting lamp cover is placed under the lamp holder. 9. The illumination device of claim 8, wherein the lens device can use a single convex or lenticular lens to adjust the distance between the convex lens and the LED such that the LED is located between the focal length of the convex lens and the focal length of twice. 10. The illumination device of claim 8, wherein the lens device is a non-adjustable focal length, and a total reflection lens having different beam focusing angles is selected, so that the spot of the LED lamp can completely cover its corresponding By illumination Χ 3 Ό a single 兀. 11. If the lighting device described in claim 8 is considered to be an illumination center of an LED lamp group, each LED lamp tube is symmetrically disposed on both sides, and is radially outward or inwardly presented. In the converging shape, the angle formed by each LED lamp tube and the illumination center in the normal direction of the LED lamp fixing plate is an irradiation angle α, which is gradually increased from the inside to the outside. 12. The lighting device according to claim 11, wherein each of the LED lamps is radially outward, and the relationship between the length X of each LED lamp and the irradiation angle α is: irradiation length X=( NM) / sina, where N is the distance between the center point of the illuminated unit corresponding to an LED light tube and the illuminated center, and the distance between the LED light tube and the illumination center is passed through the 23 1335398 bamboo raft (four) ' The calculation determines the illumination angle α of the LED lamp. 13. The lighting device of claim 11, wherein each of the LED lamps is converged inwardly, and the relationship between the length L of each LED lamp and the irradiation angle α is: irradiation length L=( y+y 1) / sina, where y is the distance between the center point of the illuminated unit corresponding to a certain LED and the illuminated center, and yl is the distance between the LED light tube and the illumination center. The calculation is based on the calculation of the formula. The illumination angle of the lamp is a. 14. The illuminating device of claim 12, wherein the illumination angle a of the LED lamp is determined such that the LED lamp illuminates the spot on the illuminated area to correspond to its designated exposure. Lighting unit. 15. The lighting device of claim 8, wherein the fixing plate is a flat surface. 16. The lighting device of claim 8, wherein the fixing plate is a curved surface. 17. The lighting device of claim 8, wherein the fixing plate is assembled by a plurality of blocks, each of which is provided with a bump and a card slot which can be connected with other blocks, and The mold is provided with at least one mounting hole for fixing the LED lamp, and the surface of the block is a flat surface. 18. The lighting device of claim 8, wherein the fixing plate is assembled by a plurality of blocks, each of which is provided with a bump and a card slot which can be connected with other blocks, and The mold is provided with at least one fixing LED lamp 24 1335398: a mounting hole of the bamboo II I, the surface of the block being a curved surface. 19. The lighting device of claim 8, wherein the fixing plate is assembled from a plurality of sub beams and two main beams, the sub beam being a strip body, the two ends of which are provided for locking The convex block on the main beam is provided with a mounting hole for fixing the LED lamp, and each LED lamp tube is symmetrically set according to the illumination center of the LED lamp group, and when the mounting hole is located at the illumination center, The LED lamp tube will be vertically irradiated downward, and the inner side belts of the mounting holes on both sides thereof will have different angles of inclination, so that the LED lamps are radially outwardly or inwardly converging; the main beam is provided There is a card hole which is matched with the lug of the auxiliary beam, and the card holes are arranged at different angles, so that the auxiliary beams are centered on the central brake beam, and the secondary beams on both sides are radially outward or convergent, and the center The auxiliary beam is symmetrically arranged; the LED light tube is fixedly mounted on the auxiliary beam. 20. The lighting device of claim 8, wherein the LED lamp can be mounted on the fixed plate with a fixed or angularly adjustable activity. 21. The lighting device of claim 8, wherein the series circuit uses a bypass circuit. 22. The lighting device of claim 8, wherein the [ED power source is a stroboscopic flash voltage that is not visible to the human eye and has a duty cycle of 5 Hz or more. 23. The lighting device of claim 8, wherein the lamp cover disposed under the lamp holder is a light-transmitting lamp cover. 25 24 ^ II (S as claimed in claim 23, the light-transmitting lamp cover is provided with a plurality of lenses, each lens being located in front of each LED lamp and perpendicular to the beam of the LED. 25, as claimed in claim 8 The illuminating device of the present invention, wherein an air intake port is provided at a lower end of the lamp holder, and an air outlet port is provided at an upper end of the other side. A filter cover is installed on the mouth and air outlet. 26