TWI653417B - Light source module - Google Patents

Abstract

A light source module includes a frame, at least one first light source component and at least one second light source component. The frame includes two guide side walls juxtaposed, wherein each guide side wall has a central axis, a first guide structure, and a second guide structure. The first light source assembly and the second light source assembly are disposed between the two guide sidewalls. The first light source assembly has two first coupling sides juxtaposed and a first light exit side between the two first coupling sides. The second light source assembly has two second coupling sides juxtaposed and a second light exit side between the two second coupling sides. The first light exiting side of the first light source assembly and the second light exiting side of the second light source assembly are both facing each central axis.

Description

Light source module

The invention relates to a light source module, and in particular to a light source module applied to an optical detection device.

Automatic optical inspection (AOI) is commonly used in semiconductor manufacturing, semiconductor packaging and testing, circuit board manufacturing, panel manufacturing, other electronic component manufacturing, or manufacturing processes in other related industries. The use of optical instruments to replace traditional manpower for defect detection not only improves production efficiency, It can also improve the accuracy of detection. Taking the automatic optical detection equipment using a tunnel lamp (or arch lamp) as the detection light source, for example, the detection light source of the conventional tunnel lamp (or arch lamp) is mostly arranged in parallel with the object to be tested, and the detection emitted by the detection light source The light needs to be directed to the top of the lampshade of the tunnel light (or arched light) first, and then the detection light is evenly diverged through the reflective film on the top and reflected toward the object to be measured.

Therefore, the conventional tunnel lamp (or arch lamp) has the problem of insufficient light intensity of the detection light projected onto the object to be measured. In addition, the detection light source is covered by the lampshade, and the heat generated by the detection light source is not easy to escape To the outside world, there is a problem of poor heat dissipation efficiency.

The invention provides a light source module, which must concentrate light to improve light intensity.

The light source module of the present invention includes a frame, at least one first light source assembly and at least one second light source assembly. The frame includes two guide side walls juxtaposed, wherein each guide side wall has a central axis, a first guide structure, and a second guide structure, and each first guide structure is symmetrically disposed on the corresponding second guide structure Both sides of the central axis. The first light source assembly and the second light source assembly are disposed between the two guide sidewalls. The first light source assembly has two first coupling sides juxtaposed and a first light exit side between the two first coupling sides. The two first coupling sides respectively face the two guide sidewalls and movably connect the two first guide structures. The second light source assembly has two second coupling sides juxtaposed and a second light exit side between the two second coupling sides. The two second coupling sides respectively face the two guide sidewalls and movably connect the two second guide structures, wherein the first light emitting side of the first light source assembly and the second light emitting side of the second light source assembly are both Towards each central axis.

Based on the above, the light source assembly of the light source module of the present invention can move relative to the frame through the guide structure to adjust the light emitting angle of the light source assembly and ensure that the detection light emitted by the light source assembly is directed toward the object to be measured. Based on this, the light intensity of the detection light projected onto the object to be measured can be greatly increased, which helps to improve the detection accuracy. On the other hand, the light source assembly is disposed in the open space of the frame, so the heat generated by the light source assembly can quickly escape to the outside.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

100、100A‧‧‧Light source module

110‧‧‧Frame

110a‧‧‧First opening

110b‧‧‧Second opening

110c‧‧‧accommodation space

111‧‧‧Guide the side wall

111a‧‧‧Side

112‧‧‧radiation side wall

113‧‧‧Central axis

114、114a‧‧‧First guiding structure

115, 115a‧‧‧Second guiding structure

116‧‧‧Ventilation holes

117‧‧‧Curved chute

118‧‧‧Locating hole

119‧‧‧Concave arc

120‧‧‧First light source component

121‧‧‧First coupling side

121a‧‧‧Coupling hole

122‧‧‧First light emitting side

123‧‧‧First back side

124‧‧‧Cooling Fin Set

125‧‧‧First light diffusion film

130‧‧‧Second light source component

131‧‧‧Second coupling side

132‧‧‧Second light exit side

133‧‧‧Second back side

140‧‧‧Coupling

140a‧‧‧positioning rod

140b‧‧‧Guide rod

150‧‧‧Fan

160‧‧‧point light source

A, B‧‧‧ area

C‧‧‧Curve Center

FIG. 1 is a schematic diagram of a light source module according to an embodiment of the invention.

2 is a side view of the light source module of FIG. 1.

3 is a partially enlarged view of the area A of the light source module of FIG. 1.

4 is a schematic diagram of the first light source assembly of FIG.

5 is a side view of the first light source assembly of FIG.

6 is a schematic diagram of a light source module according to another embodiment of the invention.

7 is a side view of the light source module of FIG. 6.

8 is a partially enlarged view of the area B of the light source module of FIG. 6.

FIG. 1 is a schematic diagram of a light source module according to an embodiment of the invention. 2 is a side view of the light source module of FIG. 1. 3 is a partially enlarged view of the light source module of FIG. 1. In particular, in order to clearly show the arrangement relationship between the various components, some components are depicted by dotted lines in FIGS. 1 to 3. Please refer to FIGS. 1 to 3. In this embodiment, the light source module 100 can be applied with optical inspection equipment for semiconductor manufacturing, semiconductor packaging and testing, circuit board manufacturing, panel manufacturing, other electronic components manufacturing, or other related industries. Used in the detection station of the process.

The light source module 100 includes a frame 110, at least one first light source assembly 120 and at least one second light source assembly 130, wherein the number of the first light source assembly 120 may be plural, and the number of the second light source assembly 130 may be plural, The number of both can be the same. The first light source components 120 and the second light source components 130 are disposed in the frame 110, and are symmetrically disposed in the frame 110, but the invention is not limited thereto. For example, the number of the first light source components 120 and the second light source components 130 may also be disposed in the frame 110 in an asymmetric form, and the number of the first light source components 120 and the number of the second light source components 130 It can be different.

In this embodiment, the first light source assembly 120 and the second light source assembly 130 are movably disposed in the frame 110. Further, any of the first light source assembly 120 or the second light source assembly 130 may be limited to the frame 110 At a specific position, if any first light source assembly 120 or second light source assembly 130 needs to be moved relative to the frame 110, then the restriction between any first light source assembly 120 or second light source assembly 130 and the frame 110 needs to be released first Mechanism, after any one of the first light source assembly 120 or the second light source assembly 130 is adjusted to the position, the limiting mechanism between any first light source assembly 120 or the second light source assembly 130 and the frame 110 is restarted.

The frame 110 includes two guide sidewalls 111 in parallel, and the first light source assemblies 120 and the second light source assemblies 130 are disposed between the two guide sidewalls 111. Since the two guide sidewalls 111 are symmetrically arranged, the structural design of one of the guide sidewalls 111 will be described below, and the structural design of the other guide sidewall 111 will not be repeated. The guiding sidewall 111 has a central axis 113, a first guiding structure 114, and a second guiding structure 115, and the first guiding structure 114 and the second guiding structure 115 are symmetrically disposed on both sides of the corresponding central axis 113. Further, the first guiding structure 114 and the second guiding structure 115 are two arc-shaped rails arranged symmetrically, wherein the concave arcs 119 of each arc-shaped rail are directed toward the central axis 113, and the curvature of the two arc-shaped rails Center C All fall on the central axis 113.

1 to 3, the frame 110 has a first opening 110a, a second opening 110b opposite to the first opening 110a, and a receiving space 110c between the first opening 110a and the second opening 110b, wherein the first The opening 110a, the second opening 110b and the accommodating space 110c are in communication, and the first light source assembly 120 and the second light source assembly 130 are disposed in the accommodating space 110c. Since the accommodating space 110c communicates with the outside through the first opening 110a and the second opening 110b, the heat generated by the first light source assembly 120 and the second light source assembly 130 can quickly escape to the outside, making the light source module of this embodiment 100 can have good heat dissipation efficiency.

Each first light source assembly 120 has two first coupling sides 121 in parallel and a first light emitting side 122 between the two first coupling sides 121, wherein the two first coupling sides 121 respectively face the The two guide sidewalls 111 are respectively movably connected to the two first guide structures 114. On the other hand, each second light source assembly 130 has two second coupling sides 131 juxtaposed and a second light emitting side 132 between the two second coupling sides 131, wherein the two second coupling sides 131 are respectively Facing the two guiding sidewalls 111, and respectively movably connecting the two second guiding structures 115. Based on the arc-shaped design of the first guiding structure 114 and the second guiding structure 115, the first light-emitting side 122 of each first light source assembly 120 and the second light-emitting side 132 of each second light source assembly 130 both face the third An opening 110a and the central axis 113 of each guide side wall 111, and the first light-emitting sides 122 and the second light-emitting sides 132 are substantially arranged in an arc-shaped surface, so that the uniformity of light output can be improved.

Because each first light source assembly 120 can be opposed along the first guiding structure 114 The guide sidewall 111 slides, and each second light source assembly 130 can slide relative to the guide sidewall 111 along the second guide structure 115, and each first light source assembly 120 and each second light source assembly 130 are on the guide sidewall 111 The position of the light source can be adjusted according to requirements, and the light exit angle of the first light exit side 122 of each first light source assembly 120 and the light exit angle of the second light exit side 132 of each second light source assembly 130 are adjusted at the same time. Furthermore, since the center of curvature C of the two arc-shaped tracks (ie, the first guiding structure 114 and the second guiding structure 115) both falls on the central axis 113, each first light source assembly 120 and each second light source assembly The detection light emitted by 130 pieces can be focused on the object to be measured. Based on this, the light intensity of the detection light projected onto the object to be measured can be greatly increased, which helps to improve the detection accuracy. On the other hand, angle marks can be marked around the two arc-shaped tracks (ie, the first guiding structure 114 and the second guiding structure 115) to allow the user to accurately adjust each first light source assembly 120 and each second The light emitting angle of the light source assembly 130.

In this embodiment, each first light source assembly 120 further has a first back side 123 opposite to the first light exit side 122, and each second light source assembly 130 also has a second back side 133 opposite to the second light exit side 132 . The first back side 123 of each first light source assembly 120 and the second back side 133 of each second light source assembly 130 both face away from each central axis 113 and face the second opening 110b. Further, the first opening 110a of the frame 110 serves as a light exit port of the light source module 100, and the second opening 110b serves as a main heat dissipation port of the light source module 100. Since the second opening 110b is not shielded, the heat generated by the first light source assembly 120 and the second light source assembly 130 can quickly escape to the outside through the second opening 110b. On the other hand, the first back side 123 of each first light source assembly 120 and the second back side 133 of each second light source assembly 130 are provided with heat dissipation fins The chip group 124 is used to increase the heat exchange area.

Please continue to refer to FIGS. 1 to 3. In this embodiment, the structure of the first coupling side 121 of the first light source assembly 120 is substantially the same as that of the second coupling side 131 of the second light source assembly 130, and the first The connection relationship between the first coupling side 121 of the light source assembly 120 and the first guiding structure 114 is substantially the same as the connection relationship between the second coupling side 131 of the second light source assembly 130 and the second guiding structure 115. The structural design of the first coupling side 121 of the first light source assembly 120 and the cooperation relationship between the first coupling side 121 and the first guiding structure 114 are described, and related to the second coupling side 131 of the second light source assembly 130 The structural design and the matching relationship between the second coupling side 131 and the second guiding structure 115 are not repeated here.

Specifically, the first coupling side 121 of each first light source assembly 120 has two coupling holes 121 a, and any pair of coupling holes 121 a is aligned with the first guiding structure 114. On the other hand, any pair of coupling holes 121a is movably connected to the first guide structure 114 through a corresponding pair of coupling members 140, for example, any pair of coupling members 140 may be positioning pins for passing through The first guiding structure 114 penetrates the corresponding pair of coupling holes 121a, so that the corresponding first light source assembly 120 is suspended in the frame 110. Before the coupling member 140 is pressed against the guide sidewall 111, the first light source assembly 120 can slide along the first guiding structure 114 through the coupling member 140. After the coupling member 140 is forced against the guide sidewall 111, the position of the first light source assembly 120 on the guide sidewall 111 may be temporarily restricted from sliding along the first guide structure 114. On the contrary, to adjust the position of the first light source assembly 120 on the guide sidewall 111, the coupling member 140 needs to be loosened. For example, the correspondingly provided coupling holes 121a and the coupling member 140 may have internal and external threads To improve the reliability of assembly.

In this embodiment, the frame 110 further includes two heat dissipation sidewalls 112 in parallel, wherein the two heat dissipation sidewalls 112 are located between the two guide sidewalls 111, and each heat dissipation sidewall 112 is connected to the two guide sidewalls 111. Further, the two guide side walls 111 and the two heat dissipation side walls 112 connected to each other define a first opening 110 a, a second opening 110 b, and an accommodating space 110 c that communicate with each other. On the other hand, each heat dissipation side wall 112 has a heat dissipation hole 116 connecting the outside and the accommodating space 110c, and a fan 150 is provided corresponding to each heat dissipation hole 116 to generate forced convection to improve heat dissipation efficiency. Each fan 150 is disposed on the corresponding heat dissipation sidewall 112 and is located outside the accommodating space 110c.

4 is a schematic diagram of the first light source assembly of FIG. 5 is a side view of the first light source assembly of FIG. Please refer to FIGS. 4 and 5. In this embodiment, the structural design of each first light source assembly 120 and each second light source assembly 130 are substantially the same. Therefore, the structural design of the first light source assembly 120 will be described below. The structural design of the second light source assembly 130 is not repeated here.

The first light source assembly 120 includes a plurality of point light sources 160 arranged linearly, but the present invention does not limit the arrangement of the point light sources 160. In other embodiments, the point light sources may be arranged in a matrix, triangle, square, other polygon, circle or ellipse, or other geometric patterns. In practical applications, the detection light emitted by these point light sources 160 may emit red light, blue light, green light, white light, ultraviolet light, or a combination thereof, and the light source combination of each first light source assembly 120 may be different or the same. On the other hand, the first light source assembly 120 includes a first light diffusion film 125 and is disposed on the first output 光边122。 The light side 122. Further, the detection light emitted by the point light sources 160 needs to pass through the first light diffusion film 125 before being emitted to the outside or toward the object to be measured, so that the detection light emitted by the point light sources 160 is evenly diffused.

The following will list other embodiments as illustrations. It must be noted here that the following embodiments follow the element numbers and partial contents of the foregoing embodiments, wherein the same reference numbers are used to indicate the same or similar elements, and the description of the same technical content is omitted. In principle, the different features of each embodiment can be applied to other embodiments. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

6 is a schematic diagram of a light source module according to another embodiment of the invention. 7 is a side view of the light source module of FIG. 6. 8 is a partial enlarged view of the light source module of FIG. 6. In particular, in order to clearly show the arrangement relationship between the various components, some components are depicted by dotted lines in FIGS. 6 to 8. Please refer to FIGS. 6 to 8. The light source module 100A of this embodiment is substantially the same as the light source module 100 of the above embodiment. The main difference between the two is the structural design of the guide structure of the guide sidewall.

In this embodiment, the first guiding structure 114a and the second guiding structure 115a are symmetrically disposed on opposite sides of the central axis 113, because the first guiding structure 114a is substantially the same as the second guiding structure 115a And the connection relationship between the first light source assembly 120 and the first guide structure 114a is substantially the same as the connection relationship between the second light source assembly 130 and the second guide structure 115a. The structural design of the first guide structure 114a and the first The connection relationship between a light source assembly 120 and the first guiding structure 114a is described, related to the structural design of the second guiding structure 115a and the second light source assembly 130 The connection relationship with the second guiding structure 115a will not be repeated.

Specifically, the first guiding structure 114a includes a plurality of pairs of arc-shaped slide grooves 117 and positioning holes 118, wherein each arc-shaped slide groove 117 is arranged in parallel with the corresponding positioning hole 118, and each positioning hole 118 is more corresponding to the corresponding arc-shaped slide The groove 117 is close to the central axis 113. That is to say, the arc-shaped slide grooves 117 and the positioning holes 118 are alternately arranged on the guide side wall 111, and the concave arcs of the arc-shaped slide grooves 117 face the corresponding positioning holes 118 and toward the central axis 113. On the other hand, as shown in FIG. 7, the guide sidewall 111 has a side 111 a, where the side 111 a may be the boundary of the first opening 110 a, and the first light emitting side 122 of the first light source assembly 120 and the second light source assembly 130 The second light emitting sides 132 are all facing the side 111a. Secondly, the distance between one of the first guiding structures 114a closer to the side 111a and the central axis 113 is greater than the distance between the other first guiding structures 114a farther from the side 111a and the central axis 113. That is, the distance between each first guide structure 114a and the central axis 113 is inversely proportional to the distance between each first guide structure 114a and the side 111a.

Please continue to refer to FIGS. 6 to 8. In this embodiment, the first coupling side 121 of each first light source assembly 120 has two coupling holes 121a, and any pair of coupling holes 121a is aligned with the corresponding pair The arc chute 117 and the positioning hole 118. In other words, one of the two coupling holes 121a is aligned with the positioning hole 118, and the other of the two coupling holes 121a is aligned with the arc-shaped sliding groove 117. Further, the coupling hole 121a aligned with the positioning hole 118 is pivotally connected to the positioning hole 118 through the positioning rod 140a, wherein the positioning rod 140a passes through the positioning hole 118 and penetrates into the coupling hole 121a, so that the first light source assembly 120 can The positioning lever 140a rotates relative to the guide side wall 111.

On the other hand, the coupling hole 121a aligned with the arc chute 117 is slidingly connected to the arc chute 117 through the guide rod 140b, wherein the guide rod 140b passes through the arc chute 117 and penetrates into the coupling hole 121a, so that the first light source assembly 120 can be suspended in the frame 110 through the positioning rod 140a and the guide rod 140b. Before the guiding rod 140b is pressed against the guiding sidewall 111, the first light source assembly 120 can slide along the arc-shaped sliding groove 117 through the guiding rod 140b. After the guiding rod 140b is forced against the guiding sidewall 111, the position of the first light source assembly 120 on the guiding sidewall 111 may be temporarily restricted from sliding along the arc-shaped sliding groove 117. On the contrary, to adjust the position of the first light source assembly 120 on the guide sidewall 111, the guide rod 140b needs to be loosened. For example, the correspondingly provided coupling holes 121a and the guide rod 140b may have a matching relationship between internal and external threads, so as to improve the reliability of assembly.

Based on the design principles of the guiding structure of this embodiment, both the first light emitting side 122 of the first light source assembly 120 and the second light emitting side 132 of the second light source assembly 130 assembled in the frame 110 can be oriented toward the central axis 113, so that The detection light emitted by one light source assembly 120 and the second light source assembly 130 can be directed toward the object to be measured. Based on this, the light intensity of the detection light projected onto the object to be measured can be greatly increased, which helps to improve the detection accuracy. Secondly, any light source assembly is provided with a corresponding arc-shaped slide slot to guide it to slide relative to the guide sidewall 111, so it has a more flexible adjustment space.

In summary, the light source component of the light source module of the present invention can move relative to the frame through the guide structure to adjust the light emitting angle of the light source component and ensure that the detection light emitted by the light source component is directed toward the object to be measured. Based on this, the light intensity of the detection light projected onto the object to be measured can be greatly increased, which helps to improve the detection accuracy. another In one aspect, the light source assembly is disposed in the open space of the frame, so the heat generated by the light source assembly can quickly escape to the outside. Secondly, the light source module of the present invention may be provided with a fan to accelerate convection. Therefore, the light source module of the present invention has good heat dissipation efficiency.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

Claims (12)

A light source module includes: a frame including two guide side walls juxtaposed, wherein each of the guide side walls has a central axis, a first guide structure and a second guide structure, and each of the first guides The structure and the corresponding second guiding structure are symmetrically arranged on both sides of the corresponding central axis; at least one first light source component is arranged between the two guiding side walls, the first light source component has two parallel first A coupling side and a first light emitting side located between the two first coupling sides, the two first coupling sides respectively face the two guide sidewalls and movably connect the two first guide structures; and at least one The second light source component is disposed between the two guide sidewalls. The second light source component has two second coupling sides juxtaposed and a second light emitting side between the two second coupling sides. The two coupling sides respectively face the two guide sidewalls and movably connect the two second guide structures, wherein the first light-emitting side of the first light source assembly and the second light-emitting side of the second light source assembly both face each The central axis. The light source module according to item 1 of the patent application scope, wherein the frame further includes two heat dissipation sidewalls juxtaposed, and is located between the two guide sidewalls, and each of the heat dissipation sidewalls connects the two guide sidewalls to define each other A first opening, a second opening, and an accommodating space in communication, wherein the accommodating space is located between the first opening and the second opening, and the first light source assembly and the second light source assembly are located in the accommodation In the space, and the first light exiting side of the first light source assembly and the second light exiting side of the second light source assembly are both facing the first opening. The light source module according to item 2 of the patent application scope, wherein each of the heat dissipation sidewalls has at least one heat dissipation hole communicating with the accommodating space, the light source module further includes at least two fans, respectively corresponding to the two heat dissipation holes On the two heat dissipation side walls and outside the accommodating space. The light source module as described in item 2 of the patent application range, wherein the first light source component further has a first back side facing the second opening, and the second light source component further has a first side facing the second opening On the two back sides, both the first back side of the first light source assembly and the second back side of the second light source assembly face away from the central axis. The light source module according to item 4 of the patent application scope further includes: at least one first heat dissipation fin group connected to the first back side of the first light source assembly; and at least one second heat dissipation fin group connected to The second back side of the second light source assembly. The light source module as described in item 1 of the patent application scope further includes: a plurality of coupling members, wherein the two first coupling sides of the first light source assembly are movably connected to the two through some of the coupling members The first guiding structure, and the two second coupling sides of the second light source assembly are movably connected to the two second guiding structures through another part of the coupling members. The light source module according to item 6 of the patent application scope, wherein the first guiding structure and the second guiding structure of each of the guiding sidewalls are two arcs symmetrically arranged on both sides of the corresponding central axis Rails, and the two concave arcs of the two arc-shaped rails of each of the guide side walls are directed toward the corresponding central axis. The light source module as described in item 7 of the patent application scope, wherein the center of curvature of the two arc-shaped tracks of each of the guide side walls is the same. The light source module according to item 6 of the patent application scope, wherein the coupling members include a first positioning rod, a first guiding rod, a second positioning rod, and a second guiding rod, each of the first guiding structure It includes a first arc-shaped slide slot and a first positioning hole in parallel, and each of the second guiding structures includes a second arc-shaped slide slot and a second positioning hole in parallel. A coupling side is pivotally connected to the corresponding first positioning hole through the corresponding first positioning rod, and slidingly connected to the corresponding first arc-shaped sliding slot through the corresponding first guide rod, and each of the second light source components The second coupling side is pivotally connected to the corresponding second positioning hole through the corresponding second positioning rod, and slidingly connected to the corresponding second arc-shaped sliding slot through the corresponding second guide rod. The light source module according to item 9 of the patent application scope, wherein the number of the first guide structures and the number of the second guide structures of each of the guide sidewalls are respectively plural, and each of the guide sidewalls has On one side, the first light-emitting side of the first light source assembly and the second light-emitting side of the second light source assembly are all directed toward each side, each of the first guiding structure and each of the second guiding structure and The distance between the corresponding central axis is inversely proportional to the distance between each of the first guiding structure and each of the second guiding structure and the corresponding side. The light source module according to item 1 of the patent application scope, wherein the first light source component and the second light source component respectively include a plurality of point light sources, and the point light sources are used to emit red light, blue light, green light, and white light Or ultraviolet light. The light source module according to item 11 of the patent application scope, wherein the first light source component includes a first light diffusion film disposed on the first light-emitting side, and the second light source component includes a second light diffusion film, Set on the second light exit side.