TWI612506B - Traffic indicator board - Google Patents

Description

Traffic indicator board

This creation is about the field of traffic signage, especially a traffic signage that allows light to have high directivity through the arrangement of the lens and the light guide column, and has a high luminous flux after concentrating and is not easily lost during light transmission.

In order to achieve the purpose of prompting and instructing the use of passers-by information, an indication board is often set on the road to prompt the place name, mileage, traffic warning number, etc., and currently the light board with the status of the light-emitting element as the indication information is generally used. a light-emitting module, a carrier frame and a lamp cover, wherein the light-emitting module is provided with a plurality of LED elements, and the LED elements are arc-shaped outwardly protruding, and the light-emitting module is sandwiched between the light-emitting modules Between the frame and the lamp cover, and integrally formed with the carrying frame and the lamp cover, the light generated by the light-emitting module is further transmitted from the lamp cover to the outside, and is arranged by controlling the light-emitting state of the light-emitting module. The displayed image and/or text is for viewing by passers-by.

However, when the light panel is exposed to sunlight or external strong light, the light is caused to be nearly totally reflected, and the passerby cannot clearly see it. Furthermore, since the LED component on the light-emitting module is a directional light source, if it is not properly processed for the light ray, when the light passes through the lampshade having a smooth surface and is exposed to the outside, the light-emitting angle is Too divergent and reduce the contrast of light, resulting in unclear lighting. Moreover, since the light is transmitted from the light source to the lampshade, there is no concentrating structure in the middle, so the intensity of the light is reduced during the transfer process, and the light intensity of the light-emitting cover is low, which may cause unclear illumination. The situation.

In view of this, the creator feels that he has tried his best to study it, and based on his accumulated experience in the industry for many years, he provides a traffic kanban to improve the lack of the above-mentioned conventional technology.

One of the purposes of this creation is to provide a traffic indicator kanban that improves the concentrating of light through structural improvements and reduces the loss of light intensity during transmission, while increasing brightness contrast.

In order to achieve the above object, the traffic billboard of the present invention comprises: a body, which is provided with a plurality of light source groups, each of the light source groups having a red light emitting diode, a green light emitting diode and a blue light emitting light. a diode body; a cover body corresponding to the light source group is disposed on one side of the body, and the cover body is provided with a plurality of holes corresponding to the light source group; the plurality of lenses are respectively disposed in the holes, Each of the lens systems has a first convex surface and a second convex surface, the first convex surface is symmetrically disposed with the second convex surface, and the first convex surface is oriented toward the body, and the surface area of the first convex surface is greater than the a surface area of the second convex surface; and a plurality of light guiding columns respectively located between the lenses and the light source groups, and the light guiding columns are respectively spaced apart from the corresponding lens. In this way, the light emitted by the light source can be collected through the light guide column and injected into the lens to avoid reducing the loss of light intensity during transmission.

Wherein, the optimum range of the separation distance is between 0.15 mm and 0.3 mm to more effectively control the light pattern of the light.

In addition, the cover body has a plurality of convex portions, and is formed into a wave shape or a zigzag shape, and the convex portions may be coated with a light absorbing layer, and the convex portions around the holes The height of the starting portion may also be lower than the height of the remaining raised portions to reduce the degree of light reflection of the external light on the cover, thereby increasing the brightness contrast of the present creation.

Preferably, the luminance ratio of the red light emitting diode, the green light emitting diode and the blue light emitting diode of each of the light source groups is 3:6:1, so as to transmit the light guiding column and the lens. After concentrating, the combined luminous flux is large and maintains white light.

Preferably, the width of the light guide column is gradually increased from one end to the other end of the light source group to control the light exit angle of the light source group after light mixing, so that the light concentration is higher.

Preferably, the lens is integrally formed with the cover system, and each of the lenses has a positioning portion, and the first convex surface and the second convex surface are respectively disposed on two sides of the positioning portion, and each of the guides The light column is adjacent to one side of the lens, and a positioning portion is disposed corresponding to the positioning portion. The connecting portion and the positioning portion are respectively connected to each other through a plurality of fixing members to increase the speed of assembly.

Preferably, the cross-section of the first convex surface and the second convex surface and the holes are circular, and the size of the holes is smaller than the maximum cross-sectional area of the first convex surface, and is greater than or equal to the first The maximum cross-sectional area of the two convex surfaces can further reduce the reflection when the area of the light-emitting surface is reduced.

In this way, through the arrangement of the lens and the light guide column, the light can increase the directivity while reducing the loss of the light intensity in the transmission, and the two convex surfaces of different sizes of the lens can improve the concentration effect and reduce the light absorption effect. The overall reflection when the light is emitted, thereby improving the brightness contrast. Furthermore, the convex portion and the light absorbing layer absorb the illuminating light or the sunlight outside the kanban to avoid total reflection of the light, so that the driving can not see the display content of the kanban or feel the eye discomfort due to the strong light.

1‧‧‧ Traffic Direction Board

11‧‧‧Ontology

111‧‧‧Light source group

1111‧‧‧Red light emitting diode

1112‧‧‧Green light emitting diode

1113‧‧‧Blue light emitting diode

12‧‧‧ Cover

121‧‧‧ hole

122‧‧‧ raised parts

123‧‧‧Light absorbing layer

13‧‧‧ lens

131‧‧‧First convex

132‧‧‧second convex surface

133‧‧‧ Positioning Department

14‧‧‧Light guide column

141‧‧‧Connecting Department

15‧‧‧Fixed parts

D‧‧‧ separation distance

Θ‧‧‧ ray angle

Fig. 1 is a perspective view showing a first embodiment of the creation.

Fig. 2 is an exploded view of the first embodiment of the creation.

Fig. 3 is a schematic view showing the light reflection of the first embodiment of the present invention.

Figure 4 is a cross-sectional view showing a second embodiment of the creation.

In the following description, the same components are denoted by the same reference numerals for the sake of understanding, in order to make the understanding of the present invention clear.

Please refer to FIG. 1 to FIG. 3 , which are perspective views, exploded views and light reflection diagrams of the first embodiment of the present invention. As shown, the traffic indicator kanban 1 of the present invention includes a body 11, a cover 12, a plurality of lenses 13 and a plurality of light guides 14.

The body 11 is provided with a plurality of light source groups 111 having a red light emitting diode 1111, a green light emitting diode 1112 and a blue light emitting diode 1113. In this embodiment, The arrangement of the light-emitting diodes is a triangular arrangement, but may also be arranged in a straight line, and is not limited thereto. The cover body 12 is disposed on one side of the body 11 corresponding to the light source group 111, and the light source group 111 corresponding to the cover body 12 is provided with a plurality of holes 121. The lenses 13 are respectively disposed on the holes 121, and each of the lenses 13 has a first convex surface 131 and a second convex surface 132. The first convex surface 131 and the second convex surface 132 are symmetrically disposed, and the first surface A convex surface 131 is oriented toward the body 11 , and a surface area of the first convex surface 131 is greater than a surface area of the second convex surface 132 . The light guide columns 14 are respectively located in the lens 13 and the light source groups 111. The light guides 14 are respectively spaced apart from the corresponding lens 13 by a distance D. In this embodiment, the optimum range of the distance D is between 0.15 mm and 0.3 mm. Compared with the conventional light guide column and the lens, the light guide column 14 and the lens 13 can be separated from each other to add a light emitting surface and a light incident surface, thereby enhancing the control and adjustment of the light, thereby achieving The light source is more effectively controlled, and the light guides 14 and the lenses 13 are separated from each other to converge again, thereby enhancing the light distribution after the final light emission and improving the light efficiency.

During operation, the light emitted by the light source group 111 is incident on one end of the light guide columns 14 and transmitted and mixed, and the light after the light is mixed out from the other end of the light guide columns 14 and The first convex surface 131 of the lens 13 is incident on the first convex surface 131 of the lens 13 , and in the embodiment, the width of the light guiding column 14 is gradually increased from one end of the light source group 111 toward the other end, so that the light transmitted therein is After the light is mixed, the light divergence angle is controlled, and after the light is emitted from the light guide columns 14, the light is more concentrated, so that the first convex surface 131 can collect more light, thereby increasing the brightness of the final light. . The light incident on the lenses 13 is condensed by the curvature of the first convex surfaces 131 to condense the incident light rays to the focus points of the second convex surfaces 132 so as to finally pass from the second convex surfaces. The angle θ between the light emitted by 132 and the long axis of the light guiding column 14 is less than or equal to 15 degrees. In this way, when the light is emitted, the light emitted by the light source is concentrated in a certain range, and does not diverge everywhere, so the brightness is sufficient, so that the driver can clearly see the display on the traffic indicator board 1 when driving the vehicle. content.

In the present embodiment, the luminance ratio of the red light emitting diode 1111, the green light emitting diode 1112, and the blue light emitting diode 1113 of each of the light source groups 111 is At 3:6:1, the light guides 14 and the lenses 13 are used to collect the light, so that the traffic indicating kanban 1 can emit white light with a high luminous flux to further enable the driving to see the displayed content.

Furthermore, in the embodiment, the cover body 12 has a plurality of convex portions 122 and is formed in a zigzag shape, and the heights of the convex portions 122 located around the holes 121 are also higher than the rest. The height of the convex portion 122 is low, so that the light emitted from the lenses 13 is not blocked by the convex portions 122, so that the external light is incident on the cover 12 due to the convexity. The height of the rising portion 122 is undulated to cause scattering, as shown in Fig. 3, to reduce the amount of light reflected in the same direction, thereby improving the overall brightness contrast. In this way, the traffic indicator kanban 1 does not need to supply higher energy to the light source groups 111, that is, the brightness of the light source groups 111 need not be too high, that is, the driving can see the contents displayed by the traffic indicator kanban 1. , thereby reducing energy consumption and achieving energy saving.

The cross-sections of the first convex surface 131 and the second convex surfaces 132 and the holes 121 are circular, and the holes 121 are smaller than the largest cross-sectional area of the first convex surface 131 and larger than It is equal to the maximum cross-sectional area of the second convex surface 132. In this way, when the size of the holes 121 is smaller than the first convex surfaces 131, that is, the light-emitting surface is small, the reflection can be reduced, and the contrast value can be improved.

Please refer to FIG. 4, which is a cross-sectional view of the second embodiment of the present invention. As shown in the figure, in the present embodiment, the lenses 13 and the cover 12 are integrally formed, and each of the lenses 13 has a positioning portion 133, the first convex surface. And the second convex surface 132 is disposed on two sides of the positioning portion 133, and each of the light guiding columns 14 is adjacent to the corresponding one. One side of the lens 13 is provided with a connecting portion 141 corresponding to the positioning portion 133. The connecting portion 141 and the positioning portion 133 are respectively connected to each other through a plurality of fixing members 15 , and screws are used as the fixing members. 15 is to lock the lenses 13 with the light guides 14. Through such integral forming, the lenses 13 can be installed and positioned without additional installation, but the lens 13 is mounted and positioned at the time of mold opening, thereby increasing the efficiency of the overall process, and The manner in which the equal-lens 13 and the light guides 14 are locked by the fixing members 15 can also be adjusted for the separation distance D, thereby further controlling the light pattern of the light to further effectively control the light type. Moreover, the protrusions 122 are coated with a light absorbing layer 123, and the light absorbing layer 123 can absorb external glare or sunlight that is directed toward the display surface of the traffic indicator board 1 to avoid The light reflection layer 123 can also be applied to the inner surface and the outer surface of the cover 12 at the same time, and is not limited thereto. At the same time, with the arrangement of the convex portion 122 and the light absorbing layer 123, the light emitted by the lens 13 can be compared with the external light to further achieve the purpose of energy saving.

In summary, the creation does achieve the difference in size between the first convex surface 131 and the second convex surface 132, so as to achieve the effect of concentrating the light as much as possible to make the light source have high directivity and reduce reflection to increase the overall contrast. The gradual increase of the width of the light guide columns 14 can not only fully mix the three kinds of light emitted by the light source groups 111, but also reduce the loss of light intensity during transmission, thereby achieving energy saving effect. . Moreover, the protrusions 122 can scatter light to reduce the intensity of the reflected light when the external light is incident on the cover 12, and can also be absorbed by the light absorbing layer 123 to illuminate the traffic indicator board 1 Strong outside Light or daylight.

However, the above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, it is common knowledge in the technical field or equivalent or easy to be familiar with the technology. The changes and modifications made by the changer without departing from the spirit and scope of this creation shall be covered by the scope of this creation.

11‧‧‧Ontology

111‧‧‧Light source group

1111‧‧‧Red light emitting diode

1112‧‧‧Green light emitting diode

1113‧‧‧Blue light emitting diode

12‧‧‧ Cover

121‧‧‧ hole

122‧‧‧ raised parts

13‧‧‧ lens

131‧‧‧First convex

132‧‧‧second convex surface

14‧‧‧Light guide column

D‧‧‧ separation distance

Claims (6)

A traffic indicating kanban comprising: a body having a plurality of light source groups, each of the light source groups having a red light emitting diode, a green light emitting diode and a blue light emitting diode; a plurality of light sources are disposed on one side of the body, and the cover body is provided with a plurality of holes corresponding to the light source group; the plurality of lenses are respectively disposed in the holes, and each of the lens systems has a first convex surface and a second convex surface, the first convex surface and the second convex surface are symmetrically disposed, and the first convex surface faces the body direction, and the surface area of the first convex surface is larger than the surface area of the second convex surface; And a plurality of light guiding columns respectively located between the lenses and the light source groups, and the light guiding columns respectively have a separation distance from the corresponding lens, the cover body has a plurality of convex portions, and the system Forming a wave or a zigzag shape, the protrusions are coated with a light absorbing layer, and the width of the light guide column is gradually increased from one end to the other end of the light source group. The traffic signage of claim 1, wherein the heights of the raised portions around the holes are lower than the heights of the remaining raised portions. The traffic indicator kanban according to claim 1, wherein the luminance ratio of the red light emitting diode, the green light emitting diode and the blue light emitting diode of each of the light source groups is 3 :6:1. The traffic signage board of claim 1, wherein the separation distance is located Between 0.15mm and 0.3mm. The traffic indicator kanban of claim 4, wherein the lenses are integrally formed with the cover system, and each of the lenses has a positioning portion, and the first convex surface and the second convex surface are separately provided. The connecting portion is provided with a connecting portion corresponding to one side of the corresponding light guiding column, and the connecting portion and the positioning portion are respectively connected to each other through a plurality of fixing members. The traffic indicator kanban of claim 1, wherein the cross-sections of the first convex surface and the second convex surfaces and the holes are circular, and the sizes of the holes are smaller than the first The largest cross-sectional area of the convex surface and greater than or equal to the largest cross-sectional area of the second convex surface.