CN109931914B - Counterpoint camera and check out test set - Google Patents
Counterpoint camera and check out test set Download PDFInfo
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- CN109931914B CN109931914B CN201910205082.6A CN201910205082A CN109931914B CN 109931914 B CN109931914 B CN 109931914B CN 201910205082 A CN201910205082 A CN 201910205082A CN 109931914 B CN109931914 B CN 109931914B
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Abstract
The invention discloses an alignment camera and detection equipment, relates to the technical field of alignment cameras, and aims to solve the problem that the range of a display panel capable of realizing alignment by an alignment camera in the related art is small. The alignment camera comprises a lens, wherein the lens comprises a shell and a lens arranged on the shell, and further comprises a light taking device, the light taking device comprises a shell, a light inlet and a light outlet are formed in the shell, an optical channel is formed between the light inlet and the light outlet, the shell is connected with the shell and is arranged opposite to the light outlet, and the orientation of the light inlet is the same as that of the lens. The invention can be used for aligning the upper panel of the automatic inspection equipment.
Description
Technical Field
The invention relates to the technical field of alignment cameras, in particular to an alignment camera and detection equipment.
Background
In the production process of the display panel, various performances of the display panel need to be detected, the performance of the display panel is detected on the detection equipment, during detection, a Mark (Mark) on the display panel is aligned by an alignment camera so that the display panel is located at a preset position, and then a two-dimensional code on the display panel is scanned by a code scanning camera so as to obtain production information of the display panel, such as poor coordinate information and the like. The alignment camera is an important component in the detection equipment, and whether the structural design of the alignment camera reasonably and directly influences the detection of the detection equipment on the display panel.
One kind of related art detection apparatus, as shown in fig. 1, includes a guide rail 01, two camera brackets 02 are slidably disposed on the guide rail 01, each camera bracket 02 is fixedly connected with one alignment camera 03, and lenses 031 of the two alignment cameras 03 face downward. When counterpointing, when two camera lens 031 centers of counterpointing camera 03 coincide with two counterpoint marks on display panel respectively, counterpoint just succeeds, and two-dimensional code on the display panel is relative with scanning the camera this moment, and it can sweep the sign indicating number to sweep the two-dimensional code on the display panel to scan the camera.
To ensure that the two alignment cameras 03 in the inspection apparatus can be successfully aligned with the two alignment marks on the display panel, as shown in fig. 1, a distance L between the two alignment marks on the display panel needs to satisfy: l is more than or equal to a +2b + c, namely L is not less than the minimum center distance M of the lenses 031 of the two alignment cameras 03min(ii) a Where c is the minimum gap between the two camera stands 02; b is the wall thickness of the lens 031 casing; a is the diameter of the lens 031. Since the size of the camera bracket 02 and the installation position of the camera body 032 of the alignment cameras 03 are fixed, the minimum center-to-center distance M between the lenses 031 of the two alignment cameras 03 is formedminIs a fixed value if the distance L between two alignment marks on the display panel<a +2b + c, even if the lenses 031 of different sizes are replaced, the alignment cannot be achieved, so that the range of the display panel on which the two alignment cameras 03 in the inspection apparatus can achieve alignment is greatly reduced (the distance between the two alignment marks of the display panels of different sizes is different).
Disclosure of Invention
The embodiment of the invention provides an alignment camera and detection equipment, which are used for solving the problem that the range of a display panel which can be aligned by the alignment camera in the related art is small.
In order to achieve the above object, in a first aspect, an embodiment of the present invention provides an alignment camera, including a lens, where the lens includes a housing and a lens disposed on the housing, and further includes an optical pickup device, where the optical pickup device includes a casing, an optical inlet and an optical outlet are disposed on the casing, an optical channel is formed between the optical inlet and the optical outlet, the housing is connected to the casing, the lens and the optical outlet are disposed opposite to each other, and an orientation of the optical inlet is the same as an orientation of the lens.
Furthermore, the light inlet and the light outlet are arranged in a staggered manner along a first direction, and the first direction is a direction perpendicular to the optical axis of the lens; the light-taking device further comprises a light guide system, wherein the light guide system is arranged in the shell and is used for transmitting light entering the shell from the light inlet to the light outlet so as to form the light channel between the light inlet and the light outlet.
Furthermore, along the first direction, the light inlet is arranged close to one side edge of the shell.
Furthermore, along the first direction, the housing has two opposite side walls, and one side edge of the light inlet, which is far away from the lens, is flush with the inner wall surface of one side wall of the housing.
Further, the size of the light inlet in the first direction is equal to the diameter of the lens.
Furthermore, the light guide system comprises a first reflecting mirror and a second reflecting mirror which are separated and arranged in parallel, the first reflecting mirror and the second reflecting mirror are obliquely arranged relative to the optical axis of the lens, the first reflecting mirror and the second reflecting mirror are oppositely arranged, at least one part of the first reflecting mirror is oppositely arranged with the light inlet, and at least one part of the second reflecting mirror is oppositely arranged with the light outlet; wherein the area between the first mirror and the second mirror is the optical channel.
Further, the housing is detachably connected to the housing.
In a second aspect, an embodiment of the present invention provides a detection apparatus, including a workbench, a rack, a guide rail, and two camera assemblies, where the guide rail is horizontally disposed and disposed on the rack, and for each camera assembly, the camera assembly includes a camera support and the alignment camera in the second aspect, the camera support is movable along the guide rail, the alignment camera is fixedly disposed on the camera support and located above the workbench, and a lens of the alignment camera is disposed facing downward.
Further, the light extraction device further comprises a light guide system, which is disposed in the housing and is configured to reflect light entering the housing from the light inlet to the light outlet, so as to form the light channel between the light inlet and the light outlet; along the extending direction of the guide rail, the orthographic projections of the light inlets of the two alignment cameras on the guide rail are both positioned between the orthographic projections of the lenses of the two alignment cameras on the guide rail.
Furthermore, in the same vertical plane parallel to the extending direction of the guide rail, the gap between the housings of the two light-taking devices is smaller than the gap between the two camera brackets.
In the alignment camera and the inspection apparatus provided in the embodiments of the present invention, since the light channel is formed between the light inlet and the light outlet, the lens and the light outlet are disposed opposite to each other, and the direction of the light inlet is the same as the direction of the lens, so that the light extraction device is equivalent to a light guide device for guiding the light entering from the light inlet into the lens of the lens through the light channel and the light outlet, that is, equivalent to transferring the center of the lens of the alignment camera to the light inlet, the minimum distance between two alignment marks aligned with the lenses of the two alignment cameras is determined by the distance between the two light inlets, and since the distance between the two light inlets is determined by the light inlet parameter b (b is the distance from the edge of one side of the light inlet to the edge of one side of the housing of the light extraction device in the first direction), the distance between the two light inlets can be reduced by replacing the light extraction device with a smaller b value, then, the minimum distance between the two alignment marks aligned by the lenses of the two alignment cameras can be smaller, and the range of the display panel aligned by the two alignment cameras can be greatly increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a detecting device in the related art;
FIG. 2 is a cross-sectional view of a detection apparatus in an embodiment of the present invention;
FIG. 3 is a perspective view of a detection apparatus in an embodiment of the present invention;
FIG. 4 is a first schematic diagram of an alignment process of the inspection apparatus according to the embodiment of the present invention (two alignment cameras are located at initial positions);
fig. 5 is a schematic diagram of a second alignment process of the detection apparatus in the embodiment of the present invention (two alignment cameras start adjusting positions to make light reflected by two alignment marks of the display panel enter the lens);
fig. 6 is a schematic diagram of a third alignment process of the detection apparatus in the embodiment of the present invention (the workbench adjusts the position of the display panel, so that the light reflected by the two alignment marks of the display panel enters the center of the lens);
fig. 7 is a diagram illustrating a fourth alignment process (successful alignment) of the detection apparatus in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In a first aspect, an embodiment of the present invention provides an alignment camera, as shown in fig. 2 and fig. 3, which includes a lens 1 and an optical pickup device 2, where the lens 1 includes a housing 12 and a lens 11 disposed on the housing 12, the optical pickup device 2 includes a casing 21, the casing 21 is provided with an optical inlet 211 and an optical outlet 212, an optical channel 213 is formed between the optical inlet 211 and the optical outlet 212, the housing 12 is connected to the casing 21, the lens 11 and the optical outlet 212 are disposed opposite to each other, and an orientation of the optical inlet 211 is the same as an orientation of the lens 1.
The shape of the light inlet 211 may be square or circular, and is not limited herein; the light exit 212 may be square or circular, and is not particularly limited herein.
As shown in fig. 2, the alignment camera according to the embodiment of the present invention includes a light channel 213 formed between the light inlet 211 and the light outlet 212, a lens 11 disposed opposite to the light outlet 212, and a light inlet 211 oriented in the same direction as the lens 1, so that the light extracting device 2 is equivalent to a light guiding device to guide the light entering from the light inlet 211 into the lens 11 of the lens 1 through the light channel 213 and the light outlet 212, that is, equivalent to transferring the center of the lens 11 of the alignment camera to the light inlet 211, and then the minimum distance between two alignment marks aligned by the lens 1 of the two alignment cameras is determined by the distance between the two light inlets 211, and since the distance between the two light inlets 211 is determined by the parameter b of the light inlet 211 (b is the distance between one side edge of the light inlet 211 and one side edge of the housing 21 of the light extracting device 2 in the first direction X), the distance between the two light inlets 211 can be reduced by replacing the light extraction device 2 with a smaller b value (i.e. the two light inlets 211 are translated towards the middle), so that the minimum distance between the two alignment marks aligned by the lenses 1 of the two alignment cameras can be smaller, and the range of the display panel aligned by the two alignment cameras can be greatly increased.
In the above embodiment, the positional relationship between the light inlet 211 and the light outlet 212 is not exclusive, for example, as shown in fig. 2, the light inlet 211 and the light outlet 212 may be arranged in a staggered manner along a first direction X, which is a direction perpendicular to the optical axis of the lens 1; the light extraction device 2 further includes a light guide system 22, the light guide system 22 is disposed in the housing 21 and is configured to transmit light entering the housing 21 from the light inlet 211 to the light outlet 212, so as to form a light channel 213 between the light inlet 211 and the light outlet 212. The light inlet 211 may be provided opposite to the light outlet 212. Compare the embodiment that income light inlet 211 and light outlet 212 set up relatively, go into the embodiment that light inlet 211 staggers the setting with light outlet 212 in first direction X, at the during operation, the distance between the income light inlet 211 of two counterpoint cameras can be littleer, the display panel's that two counterpoint cameras can realize counterpointing scope is great so, just so need not to change light taking device 2 and just can adapt to not unidimensional display panel, thereby just can save the time that light taking device 2 changed down, be favorable to improving detection equipment's detection efficiency.
In order to further reduce the distance between the light inlets 211 of the two alignment cameras, as shown in fig. 2, along the first direction X, the light inlet 211 is disposed near one side edge of the housing 21, for example, one side edge of the light inlet 211 away from the lens 1 may be disposed near an inner wall surface of one side wall of the housing 21. Can further reduce the distance between the income light mouth 211 of two counterpoint cameras like this, the display panel size scope that the camera lens 1 of two counterpoint cameras is counterpointed just so can be bigger, just so can reduce the number of times of changing and get light device 2 to can save more time, and then can further improve check out test set's detection efficiency.
In order to further reduce the distance between the light inlets 211 of the two alignment cameras, as shown in fig. 2, the housing 21 has two opposite side walls along the first direction X, and one side edge of the light inlet 211, which is far away from the lens 1, is flush with the inner wall surface of one side wall of the housing 21, that is, the distance between the light inlet 211 and one side edge of the housing 21 in the first direction X is the wall thickness of the side housing 21. Therefore, the distance between the light inlets 211 of the two alignment cameras can be further reduced, the size range of the display panel to which the lens 1 of the two alignment cameras is aligned can be larger, the times of replacing the light extraction device 2 can be greatly reduced, more time can be saved, and the detection efficiency of the detection equipment can be improved to the maximum extent.
The shape of the housing 21 may be a rectangular parallelepiped, or may be other shapes as long as it has two opposite sidewalls in the first direction X, and is not particularly limited herein.
In the light extraction device 2, the size of the light entrance 211 in the first direction X may be equal to the diameter of the lens 11 (as shown in fig. 2), or may be larger than the diameter of the lens 11. Compare the size of going into light mouthful 211 on first direction X and be greater than the diameter of lens 11, when going into light mouthful 211 size on first direction X and lens 11 diameter equal, can be under the prerequisite of guaranteeing that the light that enters into in the casing 21 from going into light mouthful 211 is whole to get into in lens 11, can reduce the occupation of the space of going into light mouthful 211 on casing 1, can reduce the size of casing 1 on first direction X like this to can reduce the occupation space of casing 1. In addition, when the center of the lens 1 corresponds to the center of the light inlet 211, the distance between the centers of the two light inlets 211 can be reduced, so that the size range of the display panel to which the lenses 1 of the two alignment cameras are aligned is larger, the number of times of replacing the light extraction device 2 can be reduced, and the detection efficiency of the detection device can be improved.
In the light extraction device 2, the structural composition of the light guide system 22 is not unique, for example, the light guide system 22 may have the following structure: as shown in fig. 2, the light guide system 22 includes a first reflecting mirror 221 and a second reflecting mirror 222 which are spaced and arranged in parallel, the first reflecting mirror 221 and the second reflecting mirror 222 are both arranged obliquely with respect to the optical axis of the lens 1, the first reflecting mirror 221 is arranged opposite to the second reflecting mirror 222, a part (or all) of the first reflecting mirror 221 is arranged opposite to the light inlet 211, and a part (or all) of the second reflecting mirror 222 is arranged opposite to the light outlet 212, wherein the area between the first reflecting mirror 221 and the second reflecting mirror 222 is the light channel 213. In this way, light entering the housing 21 from the light inlet 211 is reflected by the first reflector 221 and the second reflector 222, and then enters the lens 11 of the lens 1 through the light outlet 212.
It should be noted that: the relative arrangement of the first reflector 221 and the second reflector 222 means that the reflecting surface of the first reflector 221 and the reflecting surface of the second reflector 222 are arranged oppositely, and the relative arrangement may be a complete relative arrangement or a partial relative arrangement.
Further, the light guide system 22 may have the following configuration: the light guide system 22 includes a light guide tube, one end of which is connected to the light inlet 211, and the other end of which is connected to the light outlet 212. In this way, light entering the housing 21 from the light inlet 211 is transmitted to the light outlet 212 through the light guide, and then enters the lens 11 of the lens 1. Compared with the embodiment that the light guide system 22 includes the light guide tube, the embodiment that the light guide system 22 includes the first reflector 221 and the second reflector 222 transmits the light at the light inlet 211 to the light outlet 212 through the reflectors, which is simpler in structure, and the price of the reflectors is lower than that of the light guide tube, so that the cost of the light guide system 22 can be reduced.
In the embodiment where the light guide system 22 includes the first reflector 221 and the second reflector 222, the included angles between the first reflector 221 and the second reflector 222 and the optical axis of the lens 1 may be 45 ° (as shown in fig. 2), or may be 30 °, which is determined according to the actual situation.
In embodiments where the light guide system 22 includes a first mirror 221 and a second mirror 222In order to ensure that at least a part of the first reflecting mirror 221 is disposed opposite to the light inlet 211, as shown in fig. 2, the length n of the first reflecting mirror 221 needs to be greater than or equal to a/sin θ 1, for example, when θ 1 is 45 °, n needs to be greater than or equal to
Wherein θ 1 is an included angle between the first reflector 221 and the optical axis of the lens 1; in order to ensure that at least a part of the second reflecting mirror 222 is disposed opposite to the light outlet 212, as shown in fig. 2, the length m of the second reflecting mirror 222 needs to be greater than or equal to e/sin θ 2; wherein θ 2 is an included angle between the second reflector 222 and the optical axis of the lens 1; for example, when θ 2 is 45 °, m needs to be equal to or greater than
In the alignment camera provided in the embodiment of the present invention, the connection relationship between the housing 21 and the lens 1 is not unique, for example, the housing 21 may be detachably connected to the housing 12 of the lens 1. The housing 21 may be integrally formed with the housing 12 of the lens 1. Compared with the case 21 and the shell of the lens 1 which are integrally formed, the case 21 and the shell 12 of the lens 1 are detachably connected, so that the light extraction device 2 can be replaced conveniently, and the light extraction device 2 does not need to be replaced together with the lens 1.
In a second aspect, an embodiment of the present invention provides a detection apparatus, as shown in fig. 3 and fig. 4, including a workbench 200, a rack (not shown in the drawings), a guide rail 300, and two camera assemblies 500, wherein the guide rail 300 is horizontally disposed and disposed on the rack, for each camera assembly 500, the camera assembly 500 includes a camera support 400 and the alignment camera 100 described in the first aspect, the camera support 400 is movable along the guide rail 300, the alignment camera 100 is fixedly disposed on the camera support 400 and located above the workbench 200, and a lens 1 of the alignment camera 100 faces downward.
When the alignment starts, as shown in fig. 4 and 5, the display panel 600 is placed on the worktable 200, and then the two camera supports 400 move along the guide rails 300 to adjust the distance between the two alignment cameras 100, so that the light reflected by the two alignment marks on the display panel 600 can enter the lens 11 of the lens 1 through the corresponding light inlet 211; as shown in fig. 6, the table 200 adjusts the position of the display panel 600 so that the light reflected by the two alignment marks on the display panel 600 can enter the center of the lens 11 of the corresponding alignment camera 100 (as shown in fig. 7) to complete alignment. After the alignment is successful, the camera scanner of the detection device scans the two-dimensional code on the display panel 600 to obtain the production information of the display panel 600.
The detection device provided by the embodiment of the invention can be used for detecting electronic devices such as circuit boards and the like besides the display panel 600.
The technical problems and the technical effects solved by the inspection apparatus are the same as those solved by the alignment camera 100 in the first aspect, and are not repeated herein.
In order to reduce the distance between the light inlets 211 of the two alignment cameras 100, as shown in fig. 2, along the extending direction of the guide 300 (for example, the X direction shown in fig. 2), the orthographic projections of the light inlets 211 of the two alignment cameras 100 on the guide 300 are located between the orthographic projections of the lenses 1 of the two alignment cameras 100 on the guide 300. The distance between the light inlets 211 of the two alignment cameras 100 can be reduced by the arrangement, so that the size range of the display panel 600 aligned by the lenses 1 of the two alignment cameras 100 can be larger, the number of times of replacing the light extraction device 2 can be reduced, more time can be saved, and the detection efficiency of the detection device can be further improved.
The central axes of the light inlets 211 of the two alignment cameras 100 and the optical axes of the lenses 1 of the two alignment cameras 100 may be located in the same plane (as shown in fig. 2), or may not be located in the same plane, which is not limited herein.
In the detection apparatus provided in the embodiment of the present invention, in the same vertical plane parallel to the extending direction of the guide rail 300, the gap v between the housings 21 of the two light-taking devices 2 may be smaller than the gap u between the two camera brackets 400 (as shown in fig. 2); in addition, the gap v between the housings 21 of the two light extraction devices 2 may be larger than the gap u between the two camera brackets 400. Compared with the embodiment in which the gap v between the housings 21 of the two light extraction devices 2 is greater than the gap u between the two camera brackets 400, in the embodiment in which the gap v between the housings 21 of the two light extraction devices 2 is less than the gap u between the two camera brackets 400, the size of the gap v between the housings 21 of the two light extraction devices 2 is not affected by the gap u between the two camera brackets 400, and the gap v between the housings 21 of the two light extraction devices 2 can be as small as zero, so that the distance between the light inlets 211 of the two alignment cameras 100 can be further reduced, and the size range of the display panel 600 aligned with the lenses 1 of the two alignment cameras 100 can be larger, thereby reducing the number of times of replacing the light extraction devices 2, saving more time, and further improving the detection efficiency of the detection apparatus.
Besides the two alignment cameras 100, the detection device may also adopt one alignment camera 100 to perform alignment, that is, when the distance between the two alignment marks on the display panel 600 is smaller than the diameter of the lens 11 of the alignment camera 100, one alignment camera 100 may be adopted to perform alignment, and the specific process is as follows: when the alignment starts, the display panel 600 is placed on the worktable 200, and then one camera bracket 400 moves along the guide rail 300 to adjust the position of the alignment camera 100, so that the light reflected by two alignment marks on the display panel 600 can enter the lens 11 of the lens 1 through the corresponding light inlet 211, and at this time, the worktable 200 adjusts the position of the display panel 600, so that the light reflected by the midpoint of the connection line of the two alignment marks on the display panel 600 can enter the center of the lens 11 of the corresponding alignment camera 100, respectively, to complete the alignment. By adopting one camera for alignment, the size range of the display panel 600 which can be aligned by the detection device can be further expanded.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The detection equipment is characterized by comprising a workbench, a rack, a guide rail and two camera assemblies, wherein the guide rail is horizontally arranged and arranged on the rack, and each camera assembly comprises a camera bracket and an alignment camera;
the camera supports can move along the guide rails, the alignment cameras are fixedly arranged on the camera supports and positioned above the workbench, and lenses of the alignment cameras are arranged downwards;
the alignment camera comprises a lens, the lens comprises a shell, a lens and an optical pickup device, the lens is arranged on the shell, the optical pickup device comprises a shell, the shell is provided with an optical inlet and an optical outlet, an optical channel is formed between the optical inlet and the optical outlet, the shell is connected with the shell, the lens and the optical outlet are oppositely arranged, and the direction of the optical inlet is the same as that of the lens;
the size between the light inlets of the two alignment cameras is smaller than the size between the two camera lenses.
2. The detection apparatus according to claim 1, wherein the light inlet is disposed to be offset from the light outlet in a first direction, the first direction being a direction perpendicular to an optical axis of the lens;
the light-taking device further comprises a light guide system, wherein the light guide system is arranged in the shell and is used for transmitting light entering the shell from the light inlet to the light outlet so as to form the light channel between the light inlet and the light outlet.
3. The detecting apparatus according to claim 2, wherein the light inlet is disposed near a side edge of the housing along the first direction.
4. The detection apparatus according to claim 3, wherein the housing has two opposite side walls along the first direction, and a side edge of the light inlet away from the lens is flush with an inner wall surface of the side wall of the housing.
5. The inspection apparatus of claim 1, wherein the dimension of the light inlet in the first direction is equal to the diameter of the lens;
the first direction is a direction perpendicular to an optical axis of the lens.
6. The detection apparatus according to any one of claims 2 to 4, wherein the light guide system comprises a first reflecting mirror and a second reflecting mirror which are arranged in parallel and spaced apart, the first reflecting mirror and the second reflecting mirror are both arranged obliquely with respect to the optical axis of the lens, the first reflecting mirror and the second reflecting mirror are arranged oppositely, at least a part of the first reflecting mirror is arranged oppositely to the light inlet, and at least a part of the second reflecting mirror is arranged oppositely to the light outlet; wherein the area between the first mirror and the second mirror is the optical channel.
7. The detection apparatus of any one of claims 1-5, wherein the housing is removably connected to the housing.
8. The detection apparatus according to any one of claims 1 to 5, wherein the light extraction device further comprises a light guide system disposed in the housing and configured to reflect light entering the housing from the light inlet to the light outlet to form the light channel between the light inlet and the light outlet;
along the extending direction of the guide rail, the orthographic projections of the light inlets of the two alignment cameras on the guide rail are both positioned between the orthographic projections of the lenses of the two alignment cameras on the guide rail.
9. The inspection apparatus of claim 8, wherein a gap between the housings of the two light extraction devices is smaller than a gap between the two camera brackets in a same vertical plane parallel to the direction of extension of the guide rail.
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| CN201910205082.6A CN109931914B (en) | 2019-03-18 | 2019-03-18 | Counterpoint camera and check out test set |
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| CN201910205082.6A CN109931914B (en) | 2019-03-18 | 2019-03-18 | Counterpoint camera and check out test set |
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| KR20140093109A (en) * | 2013-01-17 | 2014-07-25 | 삼성디스플레이 주식회사 | Printing apparatus |
| CN205427436U (en) * | 2016-03-23 | 2016-08-03 | 北京京东方光电科技有限公司 | Display device's counterpoint check out test set and exposure process systems |
| WO2018048843A1 (en) * | 2016-09-08 | 2018-03-15 | Corning Incorporated | Optical inspection systems and methods for detecting surface defects in a transparent sheet |
| CN109115779A (en) * | 2018-10-25 | 2019-01-01 | 湖北器长光电股份有限公司 | Integrated optical path folding mode resolution imaging device and method |
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