TWM663298U - Optical testing equipment - Google Patents

Abstract

The present invention discloses an optical inspection device, which includes a material conveyor belt, a lower visual inspection mechanism, two transfer mechanisms for transferring multiple electronic components between the material conveyor belt and the lower visual inspection mechanism, and a composite device located on one side of the two transfer mechanisms. The composite inspection device includes an upper visual inspection mechanism and a circular side inspection mechanism. After the lower surface inspection of the lower visual inspection mechanism is completed, the multiple electronic components can be transferred from the material conveyor belt to the composite device, and the composite inspection device can move relative to the inspection conveyor belt so that the upper visual inspection mechanism and the circular side inspection mechanism can be used to inspect the upper surface and circular side of the multiple electronic components.

Description

Optical testing equipment

The invention relates to a detection device, and more particularly to an optical detection device.

The existing optical inspection equipment must use at least six inspection stations to inspect the outer surface of an electronic component. When the existing optical inspection equipment inspects the circumferential side of the electronic component, the single electronic component must be placed inside the reflector to achieve the circumferential side inspection. However, the structure of the existing optical inspection equipment makes the inspection time-consuming and requires a large factory space.

Therefore, the author of the present invention believes that the above defects can be improved, and has conducted intensive research and applied scientific principles to finally propose a creation that is reasonably designed and effectively improves the above defects.

The present invention provides an optical detection device that can effectively improve the defects that may occur in existing optical detection devices.

The present invention discloses an optical inspection device, which includes: a workbench; a material conveyor belt mounted on the workbench and used to transport a material tray carrying a plurality of electronic components along a first direction, so that the material tray can move between a first position, a second position, and a third position; a first transfer mechanism mounted on the workbench and used to pick up and transport a plurality of electronic components from the material tray located at the first position along a second direction perpendicular to the first direction; a visual inspection mechanism mounted on the workbench and used to transfer the plurality of electronic components to the material tray; A first transfer mechanism is located on one side of the lower visual detection mechanism; wherein the lower visual detection mechanism is used to receive the plurality of electronic components transmitted from the first transfer mechanism and detect the lower surfaces of the plurality of electronic components; a second transfer mechanism is installed on the workbench, and the second transfer mechanism is located on the other side of the lower visual detection mechanism; wherein the second transfer mechanism is used to transfer the plurality of electronic components detected by the lower visual detection mechanism to the material tray located at the second position; and a composite device is installed The composite device is located on the workbench and on a side of the second transfer mechanism far from the first transfer mechanism; wherein the composite device includes: an upper visual detection mechanism, which can be used to detect the upper surfaces of the plurality of electronic components in the tray located at the third position; and an annular side detection mechanism, including: a housing; a camera installed in the housing; a conical reflector located in the housing and below the camera; and an annular reflector located in the housing and corresponding to the conical reflector configuration; wherein the The imaging light path of the camera defines an imaging space outside the housing through reflections from the conical reflector and the annular reflector, which is used to detect the annular side surfaces of the plurality of electronic components in the material tray located at the third position; wherein, when the material tray carries a plurality of the electronic components and is located at the third position, the composite device can move relative to the material conveyor belt so that the upper visual detection mechanism and the annular side surface detection mechanism can be used to detect the upper surfaces and the annular side surfaces of the plurality of electronic components.

The present invention also discloses an optical inspection device, which includes: a workbench; a material conveyor belt mounted on the workbench and used to transport a material tray carrying a plurality of electronic components along a first direction so that the material tray can move between a first position, a second position, and a third position; a first transfer mechanism mounted on the workbench and used to pick up and transfer a plurality of electronic components from the material tray at the first position along a second direction perpendicular to the first direction. The electronic components are mounted on the workbench; a lower visual detection mechanism is mounted on the workbench, and the first transfer mechanism is located on one side of the lower visual detection mechanism; wherein the lower visual detection mechanism is used to receive the plurality of electronic components transmitted from the first transfer mechanism and detect the lower surfaces of the plurality of electronic components; a second transfer mechanism is mounted on the workbench, and the second transfer mechanism is located on the other side of the lower visual detection mechanism; wherein the The second transfer mechanism is used to transfer the plurality of electronic components that have completed the inspection by the lower visual inspection mechanism to the tray located at the second position; and a composite device installed on the workbench and located on a side of the second transfer mechanism far away from the first transfer mechanism; wherein the composite device includes: an upper visual inspection mechanism that can be used to detect the upper surface of the plurality of electronic components in the tray located at the third position; and a ring side The detection mechanism defines an imaging space outside the detection mechanism for detecting the circumferential side surfaces of the plurality of electronic components in the material tray located at the third position; wherein, when the material tray carries the plurality of electronic components and is located at the third position, the composite device can move relative to the material conveyor belt so that the upper visual detection mechanism and the circumferential side surface detection mechanism can be used to detect the upper surfaces and the circumferential side surfaces of the plurality of electronic components.

In summary, the optical detection device disclosed in the present inventive embodiment integrates the upper visual detection mechanism and the circumferential side detection mechanism in the same axial direction through the composite detection device, thereby improving the detection performance of the optical detection device and reducing the overall size of the optical detection device.

Furthermore, the optical detection equipment disclosed in the present inventive embodiment uses an annular side surface detection mechanism which can directly image the annular side surfaces of the multiple electronic components located outside the annular side surface detection mechanism through the imaging space, and therefore does not need to be limited to detecting the annular side surfaces of the electronic components one by one, thereby effectively improving the detection performance.

To further understand the features and technical content of this creation, please refer to the following detailed description and illustrations of this creation. However, such description and illustrations are only used to illustrate this creation and do not limit the scope of protection of this creation.

The following is an explanation of the implementation method of the "optical detection equipment" disclosed in this creation through specific concrete embodiments. Technical personnel in this field can understand the advantages and effects of this creation from the content disclosed in this manual. This creation can be implemented or applied through other different specific embodiments, and the details in this manual can also be modified and changed in various ways based on different viewpoints and applications without deviating from the concept of this creation. In addition, the drawings of this creation are only simple schematic illustrations and are not depicted according to actual size. Please note in advance. The following implementation method will further explain the relevant technical content of this creation in detail, but the disclosed content is not used to limit the scope of protection of this creation.

It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various elements or features, these elements or features should not be limited by these terms. These terms are mainly used to distinguish one element from another element, or one feature from another feature. In addition, the term "or" used herein may include any one or more combinations of the related listed items depending on the actual situation.

Please refer to Figures 1 to 10, which are embodiments of the present invention. As shown in Figures 1 and 2, the present embodiment discloses an optical detection device 100, which includes a material conveyor belt 1, a first transfer mechanism 2 across the material conveyor belt 1, a second transfer mechanism 3 parallel to the first transfer mechanism 2, a visual detection mechanism 4 located between the first transfer mechanism 2 and the second transfer mechanism 3, a composite device 5 across the material conveyor belt 1, a plurality of material distribution units 6 parallel to and located on one side of the material conveyor belt 1, a tray conveyor belt 7 parallel to and located on the other side of the material conveyor belt 1, and a workbench 8 for mounting the above components.

That is, the material conveyor belt 1, the first transfer mechanism 2, the second transfer mechanism 3, the lower visual detection mechanism 4, the composite device 5, the plurality of material dividing units 6, and the tray conveyor belt 7 are all installed on the workbench 8, but the invention is not limited thereto. For example, in other embodiments not shown in the invention, the optical detection device 100 may omit the plurality of material dividing units 6 and the tray conveyor belt 7 according to actual needs.

In this embodiment, the material conveyor belt 1 is used to convey at least one material tray 11 along a first direction D1, which carries a plurality of electronic components 200 and can move (along the material conveyor belt 1) between a first position P1, a second position P2, and a third position P3. In this embodiment, the material conveyor belt 1 roughly spans the entire workbench 8 along the first direction D1. It should be noted that, in order to facilitate understanding of this embodiment, the number of the material trays 11 located on the material conveyor belt 1 is introduced as one in the following content, but the present invention is not limited thereto.

In addition, in order to facilitate understanding of the transfer structure layout of the optical detection device 100 in this embodiment, the multiple mechanisms included in the composite device 5 are briefly introduced here. In this embodiment, the composite device 5 includes a third transfer mechanism 51, an upper visual detection mechanism 52 installed on the third transfer mechanism 51, and a ring side detection mechanism 53 installed on the third transfer mechanism 51; that is, the composite device 5 in this embodiment includes a transfer function and multiple detection functions, but the present invention is not limited to this.

The first transfer mechanism 2, the second transfer mechanism 3, and the composite device 5 (such as the third transfer mechanism 51) are arranged in parallel with each other and are respectively set up on the workbench 8 along a second direction D2 perpendicular to the first direction D1. The composite device 5 is located on the side of the second transfer mechanism 3 far from the first transfer mechanism 2 (that is, the second transfer mechanism 3 is located between the first transfer mechanism 2 and the composite device 5), and the composite device 5 (such as the third transfer mechanism 51) spans the material conveyor belt 1, the plurality of the material distribution units 6, and the tray conveyor belt 7.

Furthermore, in this embodiment, the first transfer mechanism 2, the second transfer mechanism 3, and the third transfer mechanism 51 each include a rail 21, 31, 511, and a grabber 22, 32, 512 movably mounted on the rail 21, 31, 511. The rail 21, 31, 511 is mounted on the workbench 8 and arranged along the second direction D2, and the grabber 22, 32, 512 is used to grab a plurality of the electronic components 200. Furthermore, the moving path of the grabber 22 of the first transfer mechanism 2 passes through the first position P1 of the material conveyor belt 1, the moving path of the grabber 32 of the second transfer mechanism 3 passes through the second position P2 of the material conveyor belt 1, and the moving path of the grabber 512 of the third transfer mechanism 51 passes through the third position P3 of the material conveyor belt 1.

The upper visual detection mechanism 52 and the circumferential side detection mechanism 53 are preferably arranged along the second direction D2 and mounted on the grabber 512 of the third transfer mechanism 51, so as to be movable relative to the material conveyor belt 1, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the upper visual detection mechanism 52 and/or the circumferential side detection mechanism 53 may also be movably mounted on the track 511 of the third transfer mechanism 51 according to actual needs, so as to be independently movable relative to the material conveyor belt 1; or, the upper visual detection mechanism 52 and the circumferential side detection mechanism 53 may also be each configured with a separate transfer mechanism.

The above is a general description of the transfer structure layout of the optical detection device 100 in this embodiment. The following is an introduction to the remaining structure details and operation functions of the optical detection device 100. As shown in Figures 3 to 6, the lower visual detection mechanism 4 is arranged on the moving path of the capturer 32 of the first transfer mechanism 2 and the second transfer mechanism 3; that is, the first transfer mechanism 2 is located on one side of the lower visual detection mechanism 4, and the second transfer mechanism 3 is located on the other side of the lower visual detection mechanism 4.

The first transfer mechanism 2 (e.g., the grabber 22) is used to grab and transfer the plurality of electronic components 200 from the tray 11 located at the first position P1 along the second direction D2. The lower visual detection mechanism 4 is used to receive the plurality of electronic components 200 transferred from the first transfer mechanism 2 and detect the lower surfaces 201 of the plurality of electronic components 200. The second transfer mechanism 3 is used to transfer the plurality of electronic components 200 detected by the lower visual detection mechanism 4 to the tray 11 located at the second position P2, thereby transferring the tray 11 from the second position P2 to the third position P3 through the material conveyor belt 1.

It should be noted that the specific structure of the lower vision detection mechanism 4 can be adjusted and changed according to actual needs, but for the convenience of understanding this embodiment, the following content will be introduced based on one feasible structure of the lower vision detection mechanism 4, but the present invention is not limited to this. As shown in FIG. 5 , the lower vision detection mechanism 4 in this embodiment includes a fixture 41, a light projector 42 facing the bottom side of the fixture 41, a plurality of light receivers 43 corresponding to the light projector 42, and a processing module 44 electrically coupled to the plurality of light receivers 43.

In more detail, the fixture 41 is used to carry the plurality of electronic components 200, and the lower surfaces 201 of the plurality of electronic components 200 are exposed outside the fixture 41. The light projector 42 is used to emit a structured light L based on interference fringes toward the lower surface 201 (e.g., multiple contacts) of each electronic component 200. The plurality of light receivers 43 are used to receive the structured light L reflected by each electronic component 200 to obtain a signal. The processing module 44 is used to receive the signal to obtain a three-dimensional structured surface having a shape corresponding to the lower surface 201 of each electronic component 200. Furthermore, the processing module 44 in this embodiment may present the three-dimensional surface in the form of point cloud data, which can be displayed on a screen (not shown in the figure), but the present invention is not limited to the above.

As shown in FIGS. 7 to 9 , the upper visual detection mechanism 52 in this embodiment can be used to detect the upper surfaces 202 of the plurality of electronic components 200 in the tray 11 at the third position P3, and the specific structure of the upper visual detection mechanism 52 can also be adjusted and changed according to actual needs. However, for ease of understanding, the structure of the upper visual detection mechanism 52 in this embodiment is the same as the structure of the lower visual detection mechanism 4 shown in FIG. 5 , and thus will not be described in detail below.

The annular side surface detection mechanism 53 defines an imaging space S outside the annular side surface 203 of the plurality of electronic components 200 in the tray 11 at the third position P3. In other words, the annular side surface detection mechanism 53 can directly image the annular side surfaces 203 of the plurality of electronic components 200 located outside the annular side surface detection mechanism 53 through the imaging space S, and thus is not limited to detecting the annular side surfaces 203 of the electronic components 200 one by one, thereby effectively improving the detection performance. In other words, any detection mechanism that requires placing the electronic components in a space surrounded by a reflector is different from the annular side surface detection mechanism 53 provided in this embodiment.

It should be noted that the specific structure of the annular side detection mechanism 53 can be adjusted and changed according to actual needs. However, in order to facilitate the understanding of this embodiment, the following content will be introduced based on one feasible structure of the annular side detection mechanism 53, but the present invention is not limited thereto. As shown in FIG. 9 , the annular side detection mechanism 53 in this embodiment includes a housing 531, a camera 532 installed in the housing 531, a cone-shaped reflector 533 located in the housing 531 and below the camera 532, and an annular reflector 534 located in the housing 531 and configured corresponding to the cone-shaped reflector 533.

In more detail, the annular side surface detection mechanism 53 is mounted on the third transfer mechanism 51 through the housing 531, and the camera 532 is disposed directly above the conical reflector 533 along a height direction H perpendicular to the first direction D1 and the second direction D2. Furthermore, the imaging optical path P of the camera 532 is defined as the imaging space S outside the housing 531 through reflection of the conical reflector 533 and the annular reflector 534, which is used to detect the annular side surfaces 203 of the plurality of electronic components 200 in the tray 11 at the third position P3.

As described above, when the material tray 11 carries a plurality of the electronic components 200 and is located at the third position P3, the composite device 5 can move relative to the material conveyor belt 1 (along the second direction D2) so that the upper visual detection mechanism 52 and the circumferential side detection mechanism 53 can be used to detect the upper surfaces 202 and the circumferential side surfaces 203 of the plurality of the electronic components 200.

Accordingly, in this embodiment, the optical detection device 100 can integrate the upper visual detection mechanism 52 and the circumferential side detection mechanism 53 in the same axial direction through the composite device 5, thereby helping to improve the detection performance of the optical detection device 100 and reduce the overall volume of the optical detection device 100.

Furthermore, in order to enable the annular side detection mechanism 53 to have a better detection effect, the annular side detection mechanism 53 preferably has at least some of the following features: wherein the conical reflector 533 includes N first reflectors 5331, the annular reflector 534 includes N second reflectors 5341, and the positions of the N first reflectors 5331 correspond to the positions of the N second reflectors 5341 (e.g., the imaging optical path P is reflected twice by each of the first reflectors 5331 and the corresponding second reflectors 5341, and overlaps with each other outside the housing 531 to form the imaging space S), and N is a positive integer greater than 5 (e.g., N is 8). In more detail, when the imaging light path P passes through the annular reflector 534, each of the second reflective mirrors 5341 can be directed toward the imaging space S and form a reflection angle σ between 40 degrees and 50 degrees relative to the height direction H, but the present invention is not limited thereto.

Furthermore, the housing 531 defines a central axis C parallel to the height direction H, and the camera 532 is disposed on the central axis C. The conical reflector 533 has N-fold rotational symmetry with respect to the central axis C, and the annular reflector 534 also has N-fold rotational symmetry with respect to the central axis C. In more detail, the area surrounded by the plurality of first reflectors 5331 gradually increases in a direction away from the camera 532, and the bottom of the conical reflector 533 away from the camera 532 is surrounded by the annular reflector 534, but is not limited thereto.

For example, in other embodiments not shown in the present invention, the annular reflector 534 may be spaced apart from the conical reflector 533 along the height direction H; or, the imaging optical path P of the annular side detection mechanism 53 may be defined as the imaging space S outside the housing 531 through more than two reflections.

According to the above, as shown in Figures 8 to 10, each of the electronic components 200 is defined as a detected component 200a on the lower surface 201, the upper surface 202, and the annular side surface 203 after detection, and is located in the tray 11 at the third position P3. Furthermore, the third transfer mechanism 51 (such as the capturer 512) can move between the material conveyor belt 1 and the plurality of the material distribution units 6, and the third transfer mechanism 51 can be used to selectively move at least one of the detected components 200a from the tray 11 located at the third position P3 to one of the plurality of the material distribution units 6.

Accordingly, the optical inspection device 100 in this embodiment can classify the plurality of inspected components 200a according to the inspection results and move them to the corresponding material separation units 6 through the third transfer mechanism 51. For example, the inspected components 200a without any defects, the inspected components 200a with defects on the lower surface 201, the inspected components 200a with defects on the upper surface 202, and the inspected components 200a with defects on the circumferential side surface 203 can each be stored in one of the material separation units 6.

It should be noted that all components included in the optical inspection device 100 in this embodiment can operate synchronously (for example, when the lower visual inspection mechanism 4 is inspecting a batch of electronic components 200, the upper visual inspection mechanism 52 and the circumferential side inspection mechanism 53 can synchronously inspect another batch of electronic components 200), thereby effectively improving the operating performance of the optical inspection device 100.

[Technical effects of the present invention]

In summary, the optical detection device disclosed in the present inventive embodiment integrates the upper visual detection mechanism and the circumferential side detection mechanism in the same axial direction through the composite detection device, thereby improving the detection performance of the optical detection device and reducing the overall size of the optical detection device.

Furthermore, the optical detection equipment disclosed in the present inventive embodiment uses an annular side surface detection mechanism which can directly image the annular side surfaces of the multiple electronic components located outside the annular side surface detection mechanism through the imaging space, and therefore does not need to be limited to detecting the annular side surfaces of the electronic components one by one, thereby effectively improving the detection performance.

The above disclosed contents are only the preferred feasible embodiments of the present invention and do not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the instructions and diagrams of the present invention are included in the patent scope of the present invention.

100: Optical detection equipment 1: Material conveyor 11: Material tray 2: First transfer mechanism 21: Track 22: Capture 3: Second transfer mechanism 31: Track 32: Capture 4: Lower visual detection mechanism 41: Fixture 42: Light projector 43: Light receiver 44: Processing module 5: Composite device 51: Third transfer mechanism 511: Track 512: Capture 52: Upper visual detection mechanism 53: Circumferential side detection mechanism 531: Housing 532: Camera 533: Conical reflector 5331: First reflector 534: Annular reflector 5341: Second reflector 6: Material dividing unit 7: Material tray conveyor 8: Workbench D1: First direction D2: Second direction H: Height direction P1: First position P2: Second position P3: Third position L: Structured light S: Image space P: Image optical path C: Center axis σ: Reflection angle 200: Electronic component 200a: Detected component 201: Lower surface 202: Upper surface 203: Annular side

FIG1 is a side view schematic diagram of an optical detection device according to an embodiment of the present invention.

FIG. 2 is a schematic top view of the optical detection device of an embodiment of the present invention.

FIG. 3 is a schematic diagram of the subsequent operation of FIG. 2 .

FIG. 4 is a schematic diagram of the subsequent operation of FIG. 3 .

FIG. 5 is a partially enlarged cross-sectional schematic diagram of FIG. 4 .

FIG. 6 is a schematic diagram of the subsequent operation of FIG. 4 .

FIG. 7 is a schematic diagram of the subsequent operation of FIG. 6 .

FIG8 is a schematic diagram of the subsequent operation of FIG7.

FIG. 9 is a partially enlarged cross-sectional schematic diagram of FIG. 8 .

FIG. 10 is a schematic diagram of the subsequent operation of FIG. 8 .

100: Optical testing equipment

1: Material conveyor belt

11: Material tray

2: The first transfer mechanism

21: Track

22: Capturer

3: Second transfer mechanism

31: Track

32: Capturer

4: Lower visual detection mechanism

41: Jig

5:Combined device

51: The third transfer mechanism

511:Track

512: Capturer

52: Upper visual detection mechanism

53: Ring side detection mechanism

6: Material separation unit

7: Tray conveyor belt

8: Workbench

D1: First direction

D2: Second direction

P1: First position

P2: Second position

P3: Third position

200: Electronic components

Claims (10)

An optical detection device, comprising: A workbench; A material conveyor belt, mounted on the workbench and used to transfer a material tray carrying multiple electronic components along a first direction, so that the material tray can move between a first position, a second position, and a third position; A first transfer mechanism, mounted on the workbench and used to grab and transfer multiple electronic components from the material tray located at the first position along a second direction perpendicular to the first direction; A lower visual detection mechanism, mounted on the workbench, and the first transfer mechanism is located on one side of the lower visual detection mechanism; wherein the lower visual detection mechanism is used to receive multiple electronic components transferred from the first transfer mechanism and detect the lower surfaces of multiple electronic components; A second transfer mechanism, mounted on the workbench, and the second transfer mechanism is located on the other side of the lower visual detection mechanism; wherein the second transfer mechanism is used to transfer the plurality of electronic components detected by the lower visual detection mechanism to the tray located at the second position; and A composite device, mounted on the workbench and located on the side of the second transfer mechanism far from the first transfer mechanism; wherein the composite device comprises: An upper visual detection mechanism, which can be used to detect the upper surface of the plurality of electronic components in the tray located at the third position; and A circumferential side detection mechanism, comprising: A housing; A camera, mounted in the housing; A conical reflector is located inside the housing and below the camera; and An annular reflector is located inside the housing and is configured corresponding to the conical reflector; Wherein, the imaging optical path of the camera is defined by the reflection of the conical reflector and the annular reflector to have an imaging space outside the housing, which is used to detect the annular side surfaces of the plurality of electronic components in the tray located at the third position; Wherein, when the material tray carries a plurality of the electronic components and is located at the third position, the composite device can move relative to the material conveyor belt so that the upper visual detection mechanism and the circumferential side detection mechanism can be used to detect the upper surface and the circumferential side of the plurality of electronic components. An optical inspection device as described in claim 1, wherein the composite device further comprises a third transfer mechanism mounted on the workbench, and the upper visual inspection mechanism and the circumferential side inspection mechanism are mounted on the third transfer mechanism so as to be able to move relative to the material conveyor belt. The optical detection device as described in claim 2, wherein the first transfer mechanism, the second transfer mechanism, and the third transfer mechanism each include: a rail mounted on the workbench and arranged along the second direction; and a grabber movably mounted on the rail, and the grabber is used to grab a plurality of the electronic components. The optical detection device as described in claim 2, wherein each of the electronic components is defined as a detected component on the lower surface, the upper surface, and the annular side surface after detection, and is located in the tray at the third position; wherein the optical detection device further comprises: A plurality of material separation units, mounted on the workbench, and the plurality of the material separation units are located on one side of the material conveyor belt; wherein the third transfer mechanism can move between the material conveyor belt and the plurality of the material separation units; wherein the third transfer mechanism can be used to selectively move at least one of the detected components from the tray at the third position to one of the plurality of the material separation units. An optical inspection device as described in claim 4, wherein the optical inspection device further includes a material tray conveyor belt located on the other side of the material conveyor belt and parallel to the material conveyor belt. An optical detection device as described in claim 1, wherein the upper visual detection mechanism and the circumferential side detection mechanism are arranged along the second direction, and the camera is arranged directly above the conical reflector along a height direction perpendicular to the first direction and the second direction. An optical detection device as described in claim 6, wherein the conical reflector includes N first reflectors, the annular reflector includes N second reflectors, and N is a positive integer greater than 5; wherein the housing defines a central axis parallel to the height direction, the camera is disposed on the central axis, the conical reflector has N-fold rotational symmetry with respect to the central axis, and the annular reflector has N-fold rotational symmetry with respect to the central axis. An optical detection device as described in claim 7, wherein the area surrounded by the plurality of first reflectors gradually increases in a direction away from the camera, and the bottom of the conical reflector away from the camera is surrounded by the annular reflector. As described in claim 7, the optical detection device, wherein when the imaging light path passes through the annular reflector, each of the second reflective mirrors can be directed toward the imaging space and form a reflection angle between 40 degrees and 50 degrees relative to the height direction. An optical detection device, comprising: A workbench; A material conveyor belt, mounted on the workbench and used to transfer a material tray carrying multiple electronic components along a first direction, so that the material tray can move between a first position, a second position, and a third position; A first transfer mechanism, mounted on the workbench and used to grab and transfer multiple electronic components from the material tray located at the first position along a second direction perpendicular to the first direction; A lower visual detection mechanism, mounted on the workbench, and the first transfer mechanism is located on one side of the lower visual detection mechanism; wherein the lower visual detection mechanism is used to receive multiple electronic components transferred from the first transfer mechanism and detect the lower surfaces of multiple electronic components; A second transfer mechanism, mounted on the workbench, and the second transfer mechanism is located on the other side of the lower visual detection mechanism; wherein the second transfer mechanism is used to transfer the plurality of electronic components detected by the lower visual detection mechanism to the tray located at the second position; and A composite device, mounted on the workbench and located on one side of the second transfer mechanism away from the first transfer mechanism; wherein the composite device comprises: An upper visual detection mechanism, which can be used to detect the upper surface of the plurality of electronic components in the tray located at the third position; and An annular side detection mechanism, which defines an imaging space located outside it, and is used to detect the annular side of the plurality of electronic components in the tray located at the third position; Wherein, when the material tray carries a plurality of the electronic components and is located at the third position, the composite device can move relative to the material conveyor belt so that the upper visual detection mechanism and the circumferential side detection mechanism can be used to detect the upper surface and the circumferential side of the plurality of electronic components.