LED light output module for traffic signal generation

Abstract

The present invention relates to an LED optical output module for generating traffic signals. The module comprises: a housing that provides a receiving space and is open to the top; a circuit board housed within the housing and having a plurality of LED modules mounted thereon; an LED driving module connected to the circuit board and controlling the LED modules; a holder unit located above the circuit board and having a lens holder corresponding one-to-one to each LED module; a plurality of individual lenses mounted so as to be detachably mounted on the lens holder; and a light-transmitting cover that covers and seals the housing. The LED optical output module for traffic signal generation according to the present invention, constructed as described above, has significantly improved brightness and excellent visibility as a lens is combined one-to-one with the built-in LED module. Furthermore, by applying an aspherical lens or a multifocal lens to control the beam angle, glare is reduced and visibility is improved, and the structure that diffuses light suppresses the occurrence of localized hot spots.

Description

Technology Field

[0001] The present invention relates to an LED optical output module for generating traffic signals that has a simple structure and good visibility. Background Technology

[0002] Pedestrian ground traffic lights, primarily installed at crosswalks, are designed to have a light output structure with sufficient brightness and an appropriate beam angle to minimize glare and provide better visibility.

[0003] There are various types of these ground traffic lights, and primarily, methods using lamp-type LEDs with directional capabilities or methods combining LEDs with reflectors have been used.

[0004] However, while the aforementioned lamp-type LED method has the advantage of being able to form directional characteristics relatively easily, it has the problem of reduced reliability during prolonged use due to vulnerability to external impacts or moisture. In particular, since it is installed on the floor, it is subjected to repetitive loads and impacts by pedestrians or vehicles, making it highly likely that functional failure will occur due to continuous physical stress.

[0005] Furthermore, in the case of a method combining LEDs with reflectors, while a certain level of brightness and directional performance can be secured initially, discoloration or degradation of the plating layer on the reflector's surface frequently occurs depending on the usage environment. If the reflector's reflective performance deteriorates, light-gathering efficiency decreases, inevitably leading to a significant decline in overall light output and visibility.

[0006] Technology is required for optical output modules that can maintain stable brightness and optical performance without durability deteriorating due to the influence of the external environment, even after long-term use. The problem to be solved

[0007] The present invention was created to resolve the above-mentioned problems and aims to provide an LED optical output module for generating traffic signals that has good brightness and visibility, maintains stable performance even during long-term use, and has a compact configuration. means of solving the problem

[0008] The LED optical output module for generating traffic signals according to the present invention, as a means of solving the problem for achieving the above objective, comprises: a housing that provides a receiving space and is open to the top; a circuit board that is housed within the housing and has a plurality of LED modules mounted thereon; an LED driving module that is connected to the circuit board and controls the LED modules; a holder unit located above the circuit board and having a lens holder that corresponds one-to-one to each LED module; a plurality of individual lenses that are detachably mounted on the lens holder; and a light-transmitting cover that covers and seals the housing.

[0009] In addition, a support member for horizontally fixing and supporting a circuit board is further provided inside the above-mentioned enclosure.

[0010] In addition, the holder unit further includes a fixing plate that is fixed on a circuit board and has the lens holder on its upper surface, and the fixing plate has a mounting hole formed therein into which the LED module is inserted.

[0011] In addition, the lens holder has a receiving space that receives light emitted from the LED module and allows for the detachable reception of an individual lens, and a locking part that maintains the fixed state of the individual lens mounted in the receiving space.

[0012] In addition, the locking part includes an elastic hook located at the upper part of the lens holder, elastically deformable, which opens when an individual lens is inserted into the lens holder and closes when the insertion is complete to prevent the individual lens from coming off.

[0013] In addition, the individual lens has a refractive surface that refracts light irradiated from an LED module, a reflective surface that receives and reflects the refracted light, and an emitting surface that emits light reflected from the reflective surface.

[0014] In addition, a light-diffusing surface that diffuses the emitted light is formed on the light-emitting surface.

[0015] In addition, the above-mentioned fixed plate has a plate-like structure having a certain thickness, and a number of them are arranged in parallel on a circuit board.

[0016] And, the above-mentioned fixed plate is detachably coupled to an adjacent fixed plate.

[0017] In addition, one side of each of the above-mentioned fixed plates is provided with a protrusion, and the other side is formed with a fixing part capable of being coupled with a protrusion of an adjacent fixed plate.

[0018] In addition, a light-diffusing protrusion is further formed on the upper surface of the light-transmitting cover to diffuse the light emitted through the light-transmitting cover.

[0019] In addition, the above LED module has various types of light-emitting chips that output mutually different colors arranged in parallel.

[0020] In addition, the light-emitting chip includes a red light-emitting chip and a green light-emitting chip.

[0021] In addition, the above-mentioned light-emitting chip further includes a yellow light-emitting chip. Effects of the invention

[0022] The LED optical output module for traffic signal generation according to the present invention, as described above, has significantly improved brightness and excellent visibility as a lens is combined one-to-one with the built-in LED module.

[0023] In addition, by applying aspherical or multifocal lenses, the beam angle can be controlled, reducing glare and improving visibility, and the light-diffusing structure suppresses the occurrence of localized hot spots.

[0024] Furthermore, by configuring a single LED module to selectively output red, green, or even yellow light, there is no need to provide separate light-emitting modules for each color, allowing for a compact overall structure and enabling improved assembly and miniaturization due to the reduction in the number of parts.

[0025] Furthermore, since it exhibits minimal degradation in lifespan even after prolonged use and maintains stable light output, while continuously providing high brightness and excellent visibility, it is suitable for application as an auxiliary signal generator linked with standard traffic lights. Brief explanation of the drawing

[0026] FIG. 1 is a perspective view of an LED optical output module for generating traffic signals according to one embodiment of the present invention. FIGS. 2 and FIGS. 3 are exploded perspective views of the optical output module illustrated in FIGS. 1. Figure 4 is a drawing illustrating a modified example of the optical output module shown in Figure 1. FIGS. 5A and FIGS. 5B are drawings illustrating an extended view of an optical output module according to one embodiment of the present invention. Fig. 6 is a side view of the optical output module illustrated in Fig. 4. FIG. 7 is a drawing for explaining an example of an operation method of an optical output module according to an embodiment of the present invention. Figure 8 is a diagram showing the optical output module of Figure 5 assisting a traffic signal. FIGS. 9 and 10 are drawings for explaining the configuration and mounting method of individual lenses applied to an optical output module according to an embodiment of the present invention. FIG. 11 is a drawing illustrating the structure of an assembled holder unit applicable to the optical output module shown in FIG. 1. FIG. 12 is a drawing illustrating a modified example of the holder unit shown in FIG. 11. FIGS. 13 and FIGS. 14 are drawings showing examples of implementation of an LED module applicable to one embodiment of the present invention. Specific details for implementing the invention

[0027] Hereinafter, one embodiment according to the present invention will be described in more detail with reference to the attached drawings.

[0028] FIG. 1 is a perspective view of an LED optical output module (10) for generating a traffic signal according to one embodiment of the present invention, and FIG. 2 and FIG. 3 are exploded perspective views of the optical output module shown in FIG. 1.

[0029] As described above, the LED light output module (10) for generating a traffic signal according to the present embodiment may include a housing (11), a supporter (13), a circuit board (17), a plurality of LED modules (21), a multi-array lens module (30), and a light-transmitting cover (41).

[0030] The above light output modules (10) may be installed in parallel in multiple numbers and configured to operate all simultaneously or partially. Additionally, the light output modules (10) may be installed so as to be embedded in the ground, or installed adjacent to a traffic signal (75) installed above a road as shown in FIG. 8.

[0031] The housing (11) is a square case that provides a storage space and is open at the top. The housing (11) can be made of synthetic resin or metal. The size of the housing (11) can be manufactured in various ways.

[0032] The above support member (13) is a structure fixed inside the enclosure (11) and can horizontally fix and support the circuit board (17). The support member (13) can perform the role of supporting or fixing not only the circuit board (17) but also other components embedded in the enclosure (11), such as an LED driving module or wired power lines. As long as it can perform such a role, the structure of the support member (13) can be varied. For example, it may take the form of a frame or have the shape of a bracket.

[0033] The circuit board (17) is a component that is horizontally fixed to a supporter (13) within the housing. A plurality of LED modules (21) are mounted on the circuit board (17). The LED modules (21) are connected to a circuit formed on the circuit board (17) and emit light by means of a transmitted control signal.

[0034] Additionally, the LED modules (21) have a matrix structure spaced apart at regular intervals in the front-back-left-right directions on the circuit board (17). In FIG. 3, the LED modules are grouped into groups of 16 and spaced apart by group, but they may also be evenly distributed across the entire surface of the circuit board (17) without being grouped.

[0035] Additionally, each LED module (21) can be controlled by an LED driving module (19 in FIG. 6). The LED driving module (19) is connected to a circuit board and can control the LED module (21). That is, the LED driving module (19) is electrically connected to the circuit board (17) to supply power to the LED module (21), control the lighting and extinguishing, and control the light emission color or light emission state as needed.

[0036] Additionally, the LED driving module (19) can independently control each LED module (21). It can turn on or off multiple LED modules (21) simultaneously, or drive only some of the LED modules (21). For example, as shown in FIG. 7a, all LED modules equipped in the multi-array lens module (30) can be turned on or off simultaneously, or as shown in FIG. 7b, only some of them can be turned on or off. In FIG. 7a and FIG. 7b, the hatched part indicates the LED module that is turned on.

[0037] In addition, as shown in FIG. 7a, all 16 LED modules (21) may be used in a lit state, or, as shown in FIG. 7b, they may be divided into two groups of eight and operated alternately. Also, if 8 of the 16 LED modules (21) do not operate, the remaining 8 LED modules (21) may operate.

[0038] Additionally, the LED driving module (19) can receive a control signal input from an external device, such as a traffic signal controller, and control the light emission timing, light emission state, and light emission color of the LED module (21). The LED driving module (19) may have a communication unit built in that can communicate with an external traffic signal controller or a manager's control terminal.

[0039] Furthermore, the LED module (21) used in the light output module (10) of the present embodiment is equipped with multiple types of light-emitting chips (23, 25, and 27 of FIG. 13 and FIG. 14) that output mutually different colors in parallel, and can output two or more colors.

[0040] First, we will explain the LED module (21) through FIGS. 13 and FIGS. 14.

[0041] The LED module (21) illustrated in FIG. 13 is equipped with two light-emitting chips. One light-emitting chip is a red light-emitting chip (23), and the other light-emitting chip is a green light-emitting chip (25). The red light-emitting chip (23) and the green light-emitting chip (25) are connected in parallel to the circuit board (17) and operate selectively. For example, when the red light-emitting chip (23) is lit, the green light-emitting chip (25) is turned off, and conversely, when the green light-emitting chip (25) is lit, the red light-emitting chip (23) is turned off.

[0042] In the LED module (21) illustrated in FIG. 14, a red light-emitting chip (23), a green light-emitting chip (25), and a yellow light-emitting chip (27) are applied. The yellow light-emitting chip (27) can output yellow light. When configured to enable the output of red, green, and yellow light, the light output module (10) can be effectively utilized as an auxiliary means for traffic signals. This is because, by illuminating the yellow light-emitting chip (27) at the time when the yellow signal is illuminated on the traffic signal, drivers or pedestrians can more easily recognize the change in the signal.

[0043] Referring again to FIGS. 2 and FIGS. 3, a plurality of multi-array lens modules (30) are installed on the upper part of the circuit board (17). The multi-array lens module (30) is an assembly formed by combining a holder unit (31) and individual lenses (35). The multi-array lens module (30) is positioned on the upper part of the LED module (21) and can pass light output from the LED module (21) upward to irradiate it upward.

[0044] The holder unit (31) has a fixed plate (31a) and a plurality of lens holders (33). The fixed plate (31a) has a structure of a square plate with a certain thickness, and a plurality of them are fixed horizontally in parallel on the upper part of the circuit board (17). The fixing of the holder unit (31) to the circuit board (17) can be implemented in various ways. For example, a hole may be formed in the circuit board (17), and a protrusion that fits into the hole may be formed in the fixed plate (31a) to fix it.

[0045] Additionally, a plurality of mounting holes (31b in FIG. 10) are formed in the fixed plate (31a). The mounting holes (31b) are through holes that correspond one-to-one with the LED module (21). As shown in FIG. 9, the LED module (21) is fitted into each mounting hole (31b).

[0046] Additionally, the lens holder (33) has a roughly cylindrical shape, and its lower end is integral with the fixed plate (31a). The lens holder (33) has a mounting hole (31b) in the center. The mounting hole (31b) is located at the central axis of the inner region of the lens holder (33).

[0047] The lens holder (33) provides a receiving space (33c) that receives light emitted from the LED module (21) and allows for the detachable reception of an individual lens (35). An elastic hook (33a) serving as a locking part is formed on the upper part of the lens holder (33). The elastic hook (33a) maintains the fixed state of the individual lens (35) mounted in the receiving space (33c).

[0048] As shown in FIG. 9, an elastic hook (33a) is provided at the upper end of the lens holder (33). The elastic hook (33a) is elastically deformable and, when an individual lens (35) is inserted into the lens holder, it is pushed by the fixing support (35k) of the individual lens (35) to open in the direction of arrow a in FIG. 9, and then closes at the moment the insertion is completed to grip and fix the fixing support (35k).

[0049] The individual lens (35) is a component that is detachably mounted to the lens holder (33). The individual lens (35) transmits light emitted from the LED module (21) and then directs it upward. In this description, 'upward' refers to the direction in which the light-transmitting cover (41) is located relative to the LED module (21).

[0050] Each individual lens (35) mounted on the lens holder (33) may be a lens having the same optical characteristics as one another, or a lens having different optical characteristics as one another. A lens having the same optical characteristics refers to a lens in which the directional characteristics of the output light, such as the light distribution angle or the directional angle, are set to be the same as one another. Additionally, a lens having different optical characteristics is a lens having a different light distribution angle or directional characteristics as one another.

[0051] A single type of individual lens (35) having the same optical characteristics may be uniformly mounted on the plurality of lens holders (33), or individual lenses (35) having different optical characteristics may be mounted in a mixed manner. The selection and placement of these individual lenses (35) may be determined according to the location where the light output module (10) is installed, the installation height, or the required visibility conditions, and the user can efficiently adjust the light distribution characteristics by selecting and placing individual lenses (35) suitable for the purpose.

[0052] The description of the configuration of the individual lens (35) will be given later.

[0053] The light-transmitting cover (41) is a component that covers and seals the housing (11). By positioning the light-transmitting cover (41) on the upper part of the housing (11), the space between the housing (11) and the light-transmitting cover (41) is sealed to prevent moisture or dust from entering the interior. The light-transmitting cover (41) can be made of transparent polycarbonate.

[0054] Additionally, a plurality of light-diffusing protrusions (41a) are formed on the upper surface of the light-transmitting cover (41). The light-diffusing protrusions (41a) are geometric protrusions formed at regular intervals on the upper surface of the light-transmitting cover (41), which diffuse the light emitted through the light-transmitting cover (41) to make the light distribution more uniform. The size and spacing of the light-diffusing protrusions (41a) can be varied.

[0055] FIG. 4 is a drawing showing a modified example of the optical output module (10) shown in FIG. 1.

[0056] As described above, four multi-array lens modules (30) are densely arranged. In the case of FIG. 2, the multi-array lens modules (30) are spaced apart, but they can be arranged as close as possible as in FIG. 4. Naturally, the arrangement of the LED modules (21) also changes so that four multi-array lens modules (30) can be applied.

[0057] As described above, when the multi-array lens module (30) is densely arranged, more light from the LED module is irradiated within the same area. The total amount of light emitted from the light output module (10) increases, so it can be applied to installation environments or usage conditions that require stronger light.

[0058] FIG. 5a is a drawing illustrating another modified example of an optical output module (10) according to one embodiment of the present invention, and FIG. 5b is a modified example of FIG. 5a.

[0059] As described above, the light output module (10) is extended. The light output module (10) of FIG. 5a has 14 multi-array lens modules (30) applied to it. The length of the light output module (10) can be adjusted by varying the number of multi-array lens modules (30) applied. As described above, when the length of the light output module (10) is extended, the light output module (10) can be used as an auxiliary means for a traffic signal.

[0060] In FIG. 5b, seven multi-array lens modules (30) are applied. As mentioned above, the number of multi-array lens modules (30) applied may vary depending on the required length of the optical output module (10).

[0061] Figure 8 is a diagram showing the optical output module of Figure 6 assisting a traffic signal.

[0062] As described above, a plurality of light output modules (10) are applied to the post (71) and horizontal arm (73) supporting the traffic signal light (75). The light output modules (10) can output signals that assist the traffic signal light (75).

[0063] FIGS. 9 and FIGS. 10 are drawings for explaining the configuration and mounting method of individual lenses (35) applied to an optical output module according to one embodiment of the present invention.

[0064] As described above, the LED module (21) mounted on the circuit board (17) is inserted into the mounting hole (31b) of the fixing plate (31a). Additionally, it can be seen that the individual lens (35) is fitted into the receiving space (33c) of the lens holder (33).

[0065] The individual lens (35) above takes the shape of a cone that narrows toward the bottom and has a refractive surface (35d), a reflective surface (35f), and a light-emitting surface (35g). The refractive surface (35d) is the inner surface of the light-receiving groove (35a). The individual lens (35) can be made of transparent polycarbonate.

[0066] The light receiving groove (35a) is formed at the center of the lower part of the individual lens (35) and is a groove that receives light irradiated from the LED module (21). The refractive surface (35d) is the inner surface of the light receiving groove (35a).

[0067] Additionally, the reflective surface (35f) receives a portion of the light traveling through the refractive surface (35d) and converts its direction of travel upward (in the direction of arrow c). A portion of the light emitted from the LED module (21) and incident into the interior of the light receiving groove (35a) is refracted as it passes through the refractive surface (35d), and then incident on the reflective surface (35f) and reflected, thereby being guided and irradiated in the direction of arrow c shown in FIG. 9, that is, in the direction of the upper part of the individual lens (35).

[0068] In this way, the reflective surface (35f) performs the function of controlling the direction of propagation of the refracted light and concentrating it in the direction of the upward light emission, thereby reducing light loss and improving the utilization efficiency of the light emitted through the individual lens (35).

[0069] The light-emitting surface (35g) is a surface that emits light reflected from the reflective surface (35f). A fixed support member (35k) is formed at the edge of the light-emitting surface (35g). The fixed support member (35k) protrudes in the radial direction of the individual lens (35) and is a protrusion that engages with the elastic hook (33a).

[0070] Additionally, a light-diffusing uneven surface (35h) is formed on the upper surface of the light-emitting surface (35g), and the light-diffusing uneven surface (35h) diffuses the light emitted through the light-emitting surface (35g) to form a uniform light distribution and suppress the occurrence of hot spots. The light-diffusing uneven surface (35h) is an embossing portion formed in a pattern of various shapes.

[0071] FIG. 6 is a schematic side view of an optical output module (10) according to one embodiment of the present invention.

[0072] As described above, a light-transmitting cover (41) is mounted on the upper part of the housing (11). Additionally, an LED driving module (19), a supporter (13), a circuit board (17), and a plurality of multi-array lens modules (30) are installed inside the housing (11). Light output from the LED module (21) undergoes repeated diffusion and is irradiated upward through the light-transmitting cover (41).

[0073] Meanwhile, the multi-array lens module (30) may be configured with an assembly structure. That is, a single multi-array lens module (30) can be formed by implementing a plurality of multi-array lens modules (30) in a detachable manner and combining them with each other.

[0074] As described above, in order to implement the multi-array lens module (30) in a detachable manner, a coupling means may be provided on the fixed plate (31a). The coupling means has the purpose of detachably connecting adjacent fixed plates (31a) and can be implemented in various ways.

[0075] For example, it may include a protrusion and a fixing part. The protrusion may be provided on one side of the fixing plate (31a), and the fixing part may be formed on the other side of the fixing plate (31a). By fitting the protrusion into the fixing part, the connection of adjacent fixing plates is achieved.

[0076] FIGS. 11 and FIGS. 12 are drawings for explaining the assembly method of an assembled multi-array lens module (30) applicable to the optical output module shown in FIG. 1, and FIG. 9 is a drawing showing a modified example of the lens holder shown in FIG. 8.

[0077] The fixing plate (31a) in the multi-array lens module (30) illustrated in FIG. 11 has a fitting projection (31d) as a protrusion at one end and a fixing groove (31c) as a fixing part at the opposite end. The fixing groove (31c) and the fitting projection (31d) extend horizontally, and the fitting projection (31d) can be fitted into the fixing groove (31c) in a sliding manner. The multi-array lens module (30) is coupled by fitting the fitting projection (31d) of one-sided holder unit (31) into the fixing groove (31c) of an adjacent holder unit (31).

[0078] In addition, a fixing hole (31f) and a fitting projection (31g) are formed in the fixing plate (31a) of the multi-array lens module (30) illustrated in FIG. 12. When the fitting projection (31g) is inserted into the fixing hole (31f), the adjacent holder unit (31) is connected. The holder unit (31) can be quickly assembled or separated by the above-described connection method.

[0079] Meanwhile, the directional angle of light emitted by each individual lens (35) in the above embodiment may be 10 degrees or more. For example, it may have a directional angle of 10 degrees, 20 degrees, 30 degrees, 40 degrees, or 50 degrees. In addition, the directional angles of each individual lens (35) constituting a single multi-array lens module (30) may all be the same, or they may be combined differently.

[0080] That is, a multi-array lens module (30) can be formed by combining individual lenses (35) having different directional angles, or it can be formed with only individual lenses (35) having a single directional angle.

[0081] Although the present invention has been described in detail through specific embodiments, the present invention is not limited to the above embodiments, and various modifications can be made by those skilled in the art within the scope of the technical concept of the present invention. Explanation of the symbols

[0082] 10: Optical output module 11: Enclosure 13: Supporter 17: Circuit board 19: LED driving module 21: LED module 23: Red light-emitting chip 25: Green light-emitting chip 27: Yellow light-emitting chip 30: Multi-array lens module 31: Holder unit 31a: Fixing plate 31b: Mounting hole 31c: Fixing groove 31d: Insertion projection 31f: Fixing hole 31g: Insertion projection 33: Lens holder 33a: Elastic hook 33c: Receiving space 35: Individual lens 35a: Light-receiving groove 35d: Refractive surface 35f: Reflective surface 35g: Light-emitting surface 35h: Light-diffusing uneven surface 35k: Fixing support part 41: Light-transmitting cover 41a: Light-diffusing projection 71: Post 73: Horizontal arm 75: Traffic signal

Claims

Claim 1 A housing that provides a receiving space and is open to the top; a circuit board housed within the housing and having a plurality of LED modules mounted thereon; an LED driving module connected to the circuit board and controlling the plurality of LED modules; a holder unit located above the circuit board and having a lens holder corresponding one-to-one to each LED module; a plurality of individual lenses mounted to be detachably attached to the lens holder; and a light-transmitting cover that covers and seals the housing, wherein the plurality of individual lenses include a refractive surface that refracts light irradiated from the plurality of LED modules; and a reflective surface that receives and reflects the refracted light. and a light-emitting surface that emits light reflected from the reflective surface; wherein the directional angle of the emitted light is 10 degrees or more and 50 degrees or less, and a plurality of individual lenses having different directional angles and light distribution angles are mixed and configured, and the plurality of light output modules are included in a post and a horizontal arm supporting a traffic signal light and output an auxiliary signal corresponding to the signal at the time when the signal is illuminated on the traffic signal light, and a fixed support member is formed at the edge of the light-emitting surface, and the fixed support member is a protrusion that protrudes in the radial direction of the individual lens and catches on an elastic hook, and the elastic hook is located at the upper end of the lens holder and is elastically deformable, and opens when the individual lens is inserted into the lens holder and closes when the insertion is completed to grip and fix the fixed support member to maintain the fixed state of the individual lens mounted in the receiving space, and a light-diffusing unevenness is formed on the upper surface of the light-emitting surface, including an embossing part formed with a pattern of various shapes, to diffuse the light emitted through the light-emitting surface and form a uniform light distribution. LED optical output module for traffic signal generation. Claim 2 An LED optical output module for generating traffic signals, wherein, in claim 1, a support supporter for horizontally fixing and supporting the circuit board is further provided inside the housing. Claim 3 In claim 1, the holder unit further comprises a fixing plate fixed on the circuit board and having the lens holder on its upper surface, and the fixing plate has a mounting hole formed therein into which the plurality of LED modules are fitted, for an LED light output module for generating traffic signals. Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete Claim 8 In paragraph 3, the fixed plate has a plate-like structure having a certain thickness, and a plurality of them are arranged in parallel on the circuit board, forming an LED optical output module for generating traffic signals. Claim 9 In claim 8, the above fixed plate is a traffic signal generating LED optical output module that is detachably coupled to an adjacent fixed plate. Claim 10 In claim 9, each of the above-mentioned fixed plates is provided with a protrusion on one side and a fixing part formed on the other side that can be coupled with a protrusion of an adjacent fixed plate, for an LED light output module for generating traffic signals. Claim 11 An LED light output module for generating traffic signals, wherein, in claim 1, a light-diffusing protrusion is further formed on the upper surface of the light-transmitting cover to diffuse light emitted through the light-transmitting cover. Claim 12 In claim 1, the LED module is an LED light output module for generating traffic signals, wherein a variety of light-emitting chips that output mutually different colors are arranged in parallel. Claim 13 In claim 12, the above-mentioned multi-type light-emitting chips include a red light-emitting chip and a green light-emitting chip, an LED light output module for generating traffic signals. Claim 14 In claim 13, the LED light output module for generating traffic signals further includes a yellow light-emitting chip among the various types of light-emitting chips.

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