CN214011705U - Light source switching device - Google Patents
Light source switching device Download PDFInfo
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- CN214011705U CN214011705U CN202120086107.8U CN202120086107U CN214011705U CN 214011705 U CN214011705 U CN 214011705U CN 202120086107 U CN202120086107 U CN 202120086107U CN 214011705 U CN214011705 U CN 214011705U
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- light source
- switching device
- source switching
- mounting base
- camera
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Abstract
The utility model belongs to the technical field of the micro LED detects, a light source auto-change over device is related to. The light source switching device comprises a mounting seat, a rail seat, at least two light source components and a driving component. The rail seat is arranged on the mounting seat. The at least two light source assemblies are distributed along the first direction and are movably arranged on the track seat along the first direction. The driving assembly is configured to drive the at least two light source assemblies to move. The light source switching device comprises a fixing plate which is movably arranged on the rail seat along a first direction, and at least two light source components are arranged on the fixing plate. The light source switching device further comprises a carrying platform, the mounting base is provided with an adjusting hole extending along a second direction, the mounting base is movably mounted on the carrying platform, and the second direction is perpendicular to the first direction. When the light source component needs to be switched, the preset light source component is driven by the driving component to move to the position matched with the camera, and even under the condition that the switching space is narrow, the light source component is also switched conveniently and quickly.
Description
Technical Field
The utility model belongs to the technical field of the micro LED detects, a light source auto-change over device is related to.
Background
The MicroLED is the future development direction of the display screen industry. The micro led may be detected using a camera. In order to improve the detection precision, a camera and lens combination with higher resolution can be adopted to detect the micro LED. In such a combination, the length of the lens may be relatively long.
In the detection process, coaxial light or annular light is needed for different situations. When the light source is replaced, the replacement is manually performed. The process of replacing the light source is complicated and the time consumption is long. Because the distance between the existing lens and the carrying platform for placing the micro LED is short, the space for replacing the light source is narrow, and the difficulty of manually replacing the light source is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a light source auto-change over device to solve the problem of changing the light source difficulty.
To achieve the purpose, the utility model adopts the following technical proposal:
a light source switching device, comprising:
a mounting seat;
a rail seat mounted to the mount;
at least two light source assemblies distributed along a first direction and movably mounted on the rail seat along the first direction;
a driving assembly configured to drive at least two of the light source assemblies to move.
Preferably, in the light source switching device, the light source switching device further includes a fixing plate movably attached to the rail base along the first direction, and at least two of the light source units are each attached to the fixing plate.
Preferably, in the light source switching device, the light source switching device further includes a stage, the mounting base has an adjusting hole extending along a second direction, the mounting base is movably mounted on the stage, and the second direction is perpendicular to the first direction.
Preferably, in the light source switching device, the light source switching device further includes a camera mounting base on which a camera is mounted, the camera mounting base has two feet mounted on the stage, and at least part of the mounting base or at least part of the driving assembly is located between the two feet.
Preferably, in the light source switching device, the light source switching device further includes at least three position sensors disposed at intervals, and the at least three position sensors are respectively used for feeding back different position information of at least two of the light source assemblies.
Preferably, in the light source switching device, the driving assembly includes a motor and a lead screw-nut mechanism, the lead screw-nut mechanism drives at least two of the light source assemblies to move, and the lead screw-nut mechanism is provided with a sensing element for triggering the position sensor.
Preferably, in the light source switching device, a nut of the feed screw-nut mechanism is connected to one of the light source assemblies.
Preferably, in the light source switching device, a position at which the sensing element triggers the middle one of the position sensors is defined as an origin position, and after the light source assembly is used, the sensing element moves to the origin position.
Preferably, in the light source switching device, one of the light source modules is a coaxial light module, and the other light source module is an annular light module.
Preferably, in the light source switching device, the rail base is perpendicular to the mounting base.
The utility model discloses a light source auto-change over device's beneficial effect lies in: when the light source component needs to be switched, the preset light source component is driven by the driving component to move to the position matched with the camera, and even under the condition that the switching space is narrow, the light source component is also switched conveniently and quickly.
Drawings
Fig. 1 is an overall perspective view of a light source switching device according to an embodiment of the present invention;
fig. 2 is an assembly diagram of a light source assembly, a driving assembly, a mounting seat and a rail seat of a light source switching device according to an embodiment of the present invention;
fig. 3 is a structural view in the direction a of fig. 2.
The component names and designations in the drawings are as follows:
the optical filter module comprises an installation base 10, an adjusting hole 11, a rail base 20, a coaxial optical assembly 30, a first sheet metal part 31, an annular optical assembly 40, a second sheet metal part 41, a fixing plate 50, a motor 61, a screw and nut mechanism 62, a nut 621, a position sensor 71, a sensing part 72, a carrier 80, a camera 91, a camera installation base 92, a bottom foot 921, a filter turntable mechanism 93, a first direction 101 and a second direction 102.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1 and 2, the present embodiment discloses a light source switching device, which includes a stage 80 and a camera mount 92. The stage 80 is horizontally disposed and the camera mount 92 is vertically disposed. The camera mounting base 92 has two feet 921 mounted to the stage 80, and the two feet 921 of the camera mounting base 92 are detachably mounted to the stage 80 by a connector such as a screw. The two feet 921 of the present embodiment are both rectangular plate structures and both extend along the second direction 102. The two feet 921 are spaced apart along the first direction 101. The camera mount 92 is disposed near one edge of the stage 80. The stage 80 of the present embodiment is used for placing the micro led.
The camera 91 is mounted to the camera mount 92, and the camera 91 is connected to a vertically extending lens. The camera 91 and the lens are respectively mounted to the camera mount 92 by connectors to improve the reliability of the mounting. In this embodiment, the camera 91 is used for detecting the micro led.
A filter turntable mechanism 93 is arranged below the lens, and the filter turntable mechanism 93 comprises a driving motor, a turntable and at least two filters arranged on the turntable. For example, the number of filters may be two, three, four, etc. The driving motor drives the turntable to rotate so that the preset optical filter is opposite to the lens.
The distance between the lens and the stage 80 is small in this embodiment. A filter turntable mechanism 93 is further provided between the lens and the stage 80, so that the space for accommodating the light source assembly is smaller. When the light source modules need to be switched, it is difficult.
To easily switch the light source assembly, the efficiency of the camera 91 in detecting the micro leds is improved. The light source switching device of the present embodiment further includes a mounting base 10, a rail base 20, at least two light source assemblies, and a driving assembly. The mount 10 is horizontally disposed, and the mount 10 is mounted on the stage 80. The rail housing 20 is mounted to the mounting housing 10. At least two light source assemblies are distributed along the first direction 101, and each light source assembly is movably mounted on the rail base 20 along the first direction 101. The driving assembly is configured to drive the at least two light source assemblies to move.
When the light source component needs to be switched, the preset light source component is driven by the driving component to move to the position matched with the camera, and even under the condition that the switching space is narrow, the light source component is also switched conveniently and quickly.
Specifically, the mounting base 10 of the present embodiment may be a rectangular plate structure, and the area of the mounting base is smaller than that of the stage 80. The mount 10 has an adjustment hole 11 extending along a second direction 102, the second direction 102 being perpendicular to the first direction 101. The mounting block 10 is movably mounted to the carrier 80 through the adjustment holes 11 and fasteners. The number of the adjustment holes 11 may be at least two. For example, the number of the adjustment holes 11 may be two, three, four, or the like. At least two adjusting holes 11 are distributed at intervals in the first direction 101. The adjusting hole 11 is provided in the present embodiment to facilitate adjusting the position of the light source assembly in the second direction 102, so that a predetermined light source assembly can be in an optimal matching position with the lens of the camera 91.
In this embodiment, at least a portion of the mounting base 10 or at least a portion of the driving assembly is located between the two feet 921, so that the occupied space of the whole light source switching device can be reduced. Further, part of the mounting base 10 and part of the driving assembly of the present embodiment are located in the space between the two feet 921, so that the occupied space of the whole light source switching device can be further reduced. Specifically, the driving assembly is mounted on a side of the rail base 20 facing the camera mount 92.
The rail seat 20 is perpendicular to the mounting seat 10, and a sliding rail is disposed on a surface of the rail seat 20 facing the micro led. At least two light source components are arranged in the slide rail through the slide block. In this embodiment, the light source switching device further includes a fixing plate 50, the fixing plate 50 is movably mounted on the rail base 20 along the first direction 101, and at least two light source assemblies are mounted on the fixing plate 50. Specifically, the fixed plate 50 is provided with a slider, and the slider is mounted in the slide rail. The fixing plate 50 is driven to move back and forth in the first direction 101, so that a predetermined light source assembly is opposed to the lens of the camera 91.
In other alternative embodiments, at least two light source modules may be mounted on the sliding rail of the rail seat 20 through respective sliding blocks. The at least two light source assemblies may also be driven by respective drive assemblies.
In the present embodiment, of the at least two light source modules, one light source module is the coaxial light module 30, and one light source module is the annular light module 40. The light source switching device of the present embodiment will be described below with the number of the light source modules being two, one being the coaxial light module 30 and the other being the annular light module 40. The coaxial optical assembly 30 functions as: by shining a light vertically downwards, the cross-shaped markings on the surface of the product are illuminated. Since the positions of the cross-shaped mark and the micro led particle are fixed, finding the cross-shaped mark corresponds to finding the position of the micro led particle. The annular light assembly 40 functions to: through the refraction of the optical fiber, the dust on the surface of the product is illuminated, and further, in the detection process, the misjudgment on the actual condition of the pixels of the product can be reduced.
Specifically, the coaxial optical component 30 is mounted to the fixing plate 50 through the first sheet metal member 31. The annular light assembly 40 is mounted to the fixing plate 50 through the second sheet metal member 41. The second sheet metal part 41 may have an L-shaped structure with a horizontal portion located above. An annular light assembly 40 is mounted on the bottom surface of the horizontal portion of the second sheet metal part 41. The horizontal portion of the second sheet metal part 41 is provided with a through hole opposite to the annular optical assembly 40, so that the normal shooting of the lens of the camera 91 is not affected.
As shown in fig. 3, in the present embodiment, the light source switching device further includes three position sensors 71 disposed at intervals, and the three position sensors 71 are mounted on a surface of the rail base 20 facing away from the micro led and distributed along the first direction 101. The three position sensors 71 are used for feeding back different position information of the coaxial optical assembly 30 and the annular optical assembly 40 respectively. For example, when the first position sensor 71 is triggered, the information fed back is: the coaxial optical assembly 30 is opposite to the lens of the camera 91. When the second position sensor 71 is triggered, the information fed back is: the lens of the camera 91 is located between the coaxial light assembly 30 and the annular light assembly 40. When the third position sensor 71 is triggered, the information fed back is: the ring light assembly 40 is opposite the lens of the camera 91. In other alternative embodiments, there may be more than three position sensors 71, depending on the number of light source assemblies.
In this embodiment, the driving assembly includes a motor 61 and a lead screw-nut mechanism 62, the lead screw-nut mechanism 62 drives at least two light source assemblies to move, and a sensing element 72 for triggering a position sensor 71 is mounted on the lead screw-nut mechanism 62. Specifically, the motor 61 may be mounted on the rail housing 20. The sensing element 72 is connected to the nut 621 of the lead screw-nut mechanism 62, and the nut 621 of the lead screw-nut mechanism 62 is connected to the fixed plate 50. The motor 61 is operated, and the nut 621 moves along the first direction 101, so as to drive the fixing plate 50 and the sensing element 72 to move along the first direction 101, and further drive the coaxial optical assembly 30 and the annular optical assembly 40 to move along the first direction 101. The motor 61 and the feed screw and nut mechanism 62 of the present embodiment are high in driving accuracy and small in occupied space.
Since the coaxial optical assembly 30, the first sheet metal part 31, the annular optical assembly 40, the second sheet metal part 41 and the fixing plate 50 of the present embodiment are connected as a whole, in other alternative embodiments, the nut 621 of the lead screw-nut mechanism 62 can also be connected with the coaxial optical assembly 30 or the first sheet metal part 31 or the annular optical assembly 40 or the second sheet metal part 41. At this time, the nut 621 can still bring the coaxial optical element 30 and the annular optical element 40 to move back and forth along the first direction 101 at the same time.
In this embodiment, the position of the sensing element 72 triggering the middle position sensor 71 is defined as the origin position, and after the light source assembly is used, the sensing element 72 moves to the origin position. Each detection is started to move from the original position, so that the coaxial light assembly 30 or the annular light assembly 40 is opposite to the lens of the camera 91, and therefore the accumulated error of the movement of the coaxial light assembly 30 or the annular light assembly 40 can be reduced, the matching precision of the coaxial light assembly 30 or the annular light assembly 40 and the lens of the camera 91 can be improved, the coaxial light assembly 30 or the annular light assembly 40 is in the optimal lighting position, and the precision of detecting the micro LED can be improved.
The light source switching device of the present embodiment can also be used for detecting other products.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A light source switching device, comprising:
a mounting seat (10);
a rail mount (20), the rail mount (20) being mounted to the mounting base (10);
at least two light source assemblies distributed along a first direction (101) and movably mounted to the rail base (20) along the first direction (101);
a driving assembly configured to drive at least two of the light source assemblies to move.
2. The light source switching apparatus according to claim 1, further comprising a fixing plate (50), wherein the fixing plate (50) is movably mounted to the rail base (20) along the first direction (101), and wherein at least two of the light source assemblies are mounted to the fixing plate (50).
3. The light source switching apparatus according to claim 1, further comprising a stage (80), wherein the mounting base (10) has an adjustment hole (11) extending along a second direction (102), and wherein the mounting base (10) is movably mounted to the stage (80), and wherein the second direction (102) is perpendicular to the first direction (101).
4. The light source switching device according to claim 3, further comprising a camera mounting base (92) mounted with a camera (91), wherein the camera mounting base (92) has two feet (921) mounted on the stage (80), and at least part of the mounting base (10) or at least part of the driving assembly is located between the two feet (921).
5. The light source switching device according to claim 1, further comprising at least three position sensors (71) spaced apart from each other, wherein the at least three position sensors (71) are respectively used for feeding back different position information of at least two of the light source modules.
6. The light source switching device according to claim 5, wherein the driving assembly comprises a motor (61) and a lead screw-nut mechanism (62), the lead screw-nut mechanism (62) drives at least two of the light source assemblies to move, and a sensing member (72) for triggering the position sensor (71) is mounted on the lead screw-nut mechanism (62).
7. The light source switching apparatus of claim 6, wherein the nut (621) of the feed screw-nut mechanism (62) is connected to one of the light source assemblies.
8. The light source switching device according to claim 6, wherein a position where the sensing member (72) triggers the middle one of the position sensors (71) is defined as a home position, and the sensing member (72) moves to the home position after the light source assembly is used.
9. The light source switching apparatus according to claim 1, wherein one of the at least two light source modules is a coaxial light module (30) and one of the light source modules is an annular light module (40).
10. The light source switching device according to any one of claims 1 to 9, wherein the rail base (20) is perpendicular to the mounting base (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120086107.8U CN214011705U (en) | 2021-01-13 | 2021-01-13 | Light source switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120086107.8U CN214011705U (en) | 2021-01-13 | 2021-01-13 | Light source switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214011705U true CN214011705U (en) | 2021-08-20 |
Family
ID=77296712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120086107.8U Active CN214011705U (en) | 2021-01-13 | 2021-01-13 | Light source switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214011705U (en) |
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2021
- 2021-01-13 CN CN202120086107.8U patent/CN214011705U/en active Active
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