A combination light source

Abstract

The utility model relates to light source structure technical field discloses a kind of combination light source, comprising: sphere integration light source, including integration hemispherical shell, first detection hole is opened in the first end portion of integration hemispherical shell, the second end portion away from the first end portion forms first light outlet hole for towards the workpiece to be measured;Annular light source, it is installed on the first end portion of integration hemispherical shell and emits light to workpiece to be measured by annular luminous lamp panel, with the second light outlet hole of the first detection hole coaxial;Along the centre line of the first detection hole and towards the direction of workpiece to be measured, the projection of the annular luminous lamp panel not being blocked and the projection between the light reflection inner shell surface of integration hemispherical shell have no gap.The utility model's combination light source, make the orthographic projection between the luminous part of sphere integration light source and annular light source have no gap, improve the detection accuracy of light reflection workpiece.

Description

Technical Field

[0001] This utility model relates to the field of light source structure technology, and in particular to a combined light source. Background Technology

[0002] An existing combined light source includes a spherical integrating light source and a ring light source. The spherical integrating light source has a detection hole at the top and a light emission hole at the bottom. The ring light source is installed at the bottom of the spherical integrating light source and surrounds the light emission hole. However, there is a non-light-emitting gap (or a light-blocking gap) between the light-emitting part of the ring light source and the light-emitting part of the spherical integrating light source. The non-light-emitting gap makes it easy for the workpiece to reflect light into the camera, which greatly affects the accuracy of the detection.

[0003] Therefore, it is necessary to design a combined light source to improve the accuracy of detection.

[0004] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0005] This invention provides a combined light source that eliminates the gap between the orthographic projection of the reflective part of the spherical integrating light source and the orthographic projection of the luminous part of the ring light source, thereby improving the detection accuracy of reflective workpieces.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A combined light source, comprising: A spherical integrating light source includes an integrating hemispherical shell, wherein a first detection hole is formed at a first end of the integrating hemispherical shell, and a first light-emitting hole is formed at a second end away from the first end for facing the workpiece to be measured. A ring light source is installed on the first end of the integrating hemispherical shell and emits light to the workpiece under test through a ring light-emitting plate, and has a second light-emitting hole coaxial with the first detection hole; Along the center line of the first detection hole and in the direction towards the workpiece to be tested, there is no gap between the unobstructed projection of the annular light-emitting plate and the projection of the reflective inner shell surface of the integral hemispherical shell.

[0007] Optionally, an annular support bottom is connected to the second end of the integral hemispherical shell; The bottom of the annular support forms the first light-emitting hole, and an annular light-emitting component for emitting light onto the reflective inner shell surface is installed on the bottom of the annular support.

[0008] Optionally, the reflective inner shell surface is a diffuse surface.

[0009] Optionally, a first annular mounting plane is formed on the first end, and a mounting thread blind hole is formed on the first end, and a plurality of mounting thread blind holes are arranged in a circumferential array around the first detection hole; The annular light source has a mounting hole corresponding to the mounting thread blind hole. A threaded fastener passes through the mounting hole and is threadedly connected to the mounting thread blind hole so that the annular light source is fixed on the first end.

[0010] Optionally, the annular light source includes the annular light-emitting panel and the annular housing; The annular light-emitting panel is installed in the annular housing, and the diameter of the annular light-emitting panel is larger the closer it is to the integral hemispherical shell.

[0011] Optionally, the integral hemispherical shell is a metal shell, and a diffuse reflection coating is provided on the inner wall surface to form the reflective inner shell surface.

[0012] Optionally, the integral hemispherical shell is an aluminum alloy shell.

[0013] Optionally, the walls of the first detection hole and the second light-emitting hole are smoothly transitioned, and the diameters of the first detection hole and the second light-emitting hole are the same.

[0014] Optionally, the diameter of the first detection aperture is larger the closer it is to the ring light source, and the minimum diameter of the second light-emitting aperture is greater than the minimum diameter of the first detection aperture; The wall of the first detection hole can reflect the light from the annular light source toward the workpiece to be tested.

[0015] Optionally, the second light-emitting aperture is tilted to reflect part of the light from the annular light source toward the wall of the first detection aperture.

[0016] Optionally, the ring light source is provided with a second detection hole that communicates with the second light-emitting hole. The diameter of the second detection hole is smaller than that of the second light-emitting hole, and the ring light-emitting plate is located between the second detection hole and the second light-emitting hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The combined light source provided by this utility model, through its ingenious structural design, places the annular light source at the first end of the spherical integrating light source and emits light towards the workpiece to be tested through the first detection hole. Along the center line of the first detection hole and in the direction towards the workpiece to be tested, there is no gap between the unobstructed projection of the annular light-emitting plate and the projection of the reflective inner shell surface of the integrating hemisphere. When the camera takes pictures and detects along the first detection hole, there will be no obvious gap where no light is emitted, thus improving the accuracy of the detection.

[0018] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view schematic diagram of the combined light source provided in an embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the combined light source along line AA; Figure 3 This is an exploded view of the combined light source provided in an embodiment of the present invention; Figure 4 This is a cross-sectional structural diagram of another type of combined light source.

[0021] Reference numerals: 1. Integrating light source; 11. Integrating hemispherical shell; 12. Annular support bottom; 13. Annular light-emitting component; 101. First detection hole; 102. First light-emitting hole; 103. Reflective inner shell surface; 104. First annular mounting plane; 105. Mounting thread blind hole; 2. Annular light source; 21. Annular light-emitting plate; 22. Annular shell; 201. Second light-emitting hole; 202. Second detection hole; 100. Workpiece to be tested. Detailed Implementation

[0022] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0023] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0024] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0025] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0026] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0027] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0028] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0029] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0030] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0031] In view of the aforementioned deficiencies in existing combined light sources, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, has actively conducted research and innovation in order to create a solution that overcomes the shortcomings of existing technologies and makes the combined light source more practical. Through continuous research and design, and after repeated prototype production and improvements, this utility model, which possesses genuine practical value, has finally been created.

[0032] Please refer to Figures 1 to 3 This utility model embodiment provides a combined light source, including a spherical integrating light source 1 and a ring light source 2.

[0033] The spherical integrating light source 1 includes an integrating hemispherical shell 11, with a first detection hole 101 at the first end of the integrating hemispherical shell 11 and a first light-emitting hole 102 formed at the second end away from the first end for facing the workpiece 100 to be measured; the ring light source 2 is installed on the first end of the integrating hemispherical shell 11 and emits light to the workpiece 100 to be measured through a ring light-emitting plate 21, and has a second light-emitting hole 201 coaxial with the first detection hole 101.

[0034] Along the center line of the first detection hole 101 and towards the workpiece 100 to be tested, there is no gap between the unobstructed projection of the ring-shaped light plate 21 and the projection of the reflective inner shell surface 103 of the integrating hemispherical shell 11. That is, the reflective area on the surface of the workpiece 100 to be tested will not form strip-shaped or ring-shaped non-reflective strips, so that the detection results of the camera can be more accurate.

[0035] It should also be noted that along the center line of the first detection hole 101 and in the direction towards the workpiece 100 to be tested, the projection of the annular light-emitting plate 21 and the projection of the reflective inner shell surface 103 of the integrating hemispherical shell 11 can overlap, as long as there is no non-reflective gap.

[0036] In the actual testing process, both the spherical integrating light source 1 and the ring light source 2 emit light towards the workpiece 100 under test. In this embodiment, there is no gap between the unobstructed projection of the ring light plate 21 and the projection of the reflective inner shell surface 103 of the integrating hemisphere shell 11, so that the reflective area on the surface of the workpiece 100 under test will not form a strip of black area.

[0037] In this embodiment, an annular support bottom 12 is connected to the second end of the integrating hemispherical shell 11; the annular support bottom 12 forms a first light-emitting hole 102, and an annular light-emitting component 13 for emitting light to the reflective inner shell surface 103 is installed on the annular support bottom 12. The annular support bottom 12 forms the first light-emitting hole 102 in this embodiment, and the annular light-emitting component 13 can be an annular lamp panel.

[0038] Optionally, the reflective inner shell surface 103 is a diffuse surface. The light emitted from the ring lamp plate is diffusely reflected by the reflective inner shell surface 103 and then projected onto the surface of the workpiece 100 to be tested, thereby making the illumination more uniform.

[0039] Optionally, a first annular mounting plane 104 is formed on the first end, and a mounting threaded blind hole 105 is formed on the first end. A plurality of mounting threaded blind holes 105 are arranged in a circumferential array around the first detection hole 101. The annular light source 2 has a mounting hole corresponding to the mounting threaded blind hole 105. A threaded fastener passes through the mounting hole and is threadedly connected to the mounting threaded blind hole 105, so that the annular light source 2 is fixed on the first end. It should be noted that existing combined light sources cannot directly mount other light source devices on the integrating hemisphere shell 11. In this embodiment, the annular light source 2 can be directly mounted on the integrating hemisphere shell 11, making the assembly of the combined light source simpler and more convenient.

[0040] In this embodiment, the integrating hemispherical shell 11 is a metal shell, and a diffuse reflection coating is provided on the inner wall surface to form a reflective inner shell surface 103. Existing integrating hemispherical shells are generally made of acrylic material. When other light source devices are installed on acrylic integrating hemispherical shells, it is easy to cause deformation of the integrating hemispherical shell, which affects the actual light output effect. Preferably, the integrating hemispherical shell 11 is an aluminum alloy shell, which is not only lightweight, but also significantly improves the support capacity and deformation resistance.

[0041] Optionally, the ring light source 2 includes a ring-shaped light-emitting plate 21 and a ring-shaped housing 22; the ring-shaped light-emitting plate 21 is installed in the ring-shaped housing 22, and the diameter of the ring-shaped light-emitting plate 21 is larger the closer it is to the integrating hemispherical shell 11. The ring-shaped light-emitting plate 21 has a conical structure and emits light at an angle downwards.

[0042] Optionally, the walls of the first detection hole 101 and the second light-emitting hole 201 are smoothly transitioned, and the diameters of the first detection hole 101 and the second light-emitting hole 201 are the same. The ring-shaped light-emitting plate 21 shines through the first detection hole 101 and the second light-emitting hole 201 toward the workpiece to be tested, resulting in better light emission and avoiding gaps where no light is emitted.

[0043] Optionally, such as Figure 4 The diameter of the first detection hole 101 increases as it gets closer to the ring light source 2, and the minimum diameter of the second light-emitting hole 201 is greater than the minimum diameter of the first detection hole 101. For example, the first detection hole 101 can be a tapered hole with a larger diameter at the top and a smaller diameter at the bottom, while the second light-emitting hole 201 can be a cylindrical hole or a tapered hole. The hole wall of the first detection hole 101 can reflect the light from the ring light source 2 towards the workpiece 100 under test, thereby converging more light towards the workpiece 100 under test.

[0044] Optionally, the second light-emitting hole 201 is tilted so as to reflect part of the light from the ring light source 2 toward the hole wall of the first detection hole 101, thereby converging more light toward the workpiece 100 to be tested.

[0045] Optionally, the ring light source 2 is provided with a second detection hole 202 that communicates with the second light emission hole 201. The diameter of the second detection hole 202 is smaller than that of the second light emission hole 201, and the ring light-emitting plate 21 is located between the second detection hole 202 and the second light emission hole 201.

[0046] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A combined light source, characterized in that, include: The spherical integrating light source (1) includes an integrating hemispherical shell (11), wherein a first detection hole (101) is provided at the first end of the integrating hemispherical shell (11), and a first light-emitting hole (102) is formed at the second end away from the first end for facing the workpiece to be measured. The ring light source (2) is installed on the first end of the integrating hemispherical shell (11) and emits light to the workpiece to be tested through the ring light-emitting plate (21), and has a second light-emitting hole (201) coaxial with the first detection hole (101). Along the center line of the first detection hole (101) and in the direction towards the workpiece to be tested, there is no gap between the unobstructed projection of the annular light-emitting plate (21) and the projection of the reflective inner shell surface (103) of the integral hemispherical shell (11).

2. The combined light source according to claim 1, characterized in that, The second end of the integral hemispherical shell (11) is connected to an annular support bottom (12). The bottom of the annular support (12) forms the first light-emitting hole (102), and an annular light-emitting component (13) for emitting light to the reflective inner shell surface (103) is installed on the bottom of the annular support (12).

3. The combined light source according to claim 1, characterized in that, The reflective inner shell surface (103) is a diffuse surface.

4. The combined light source according to claim 1, characterized in that, A first annular mounting plane (104) is formed on the first end, and a mounting thread blind hole (105) is formed on the first end. A plurality of mounting thread blind holes (105) are arranged in a circumferential array around the first detection hole (101). The annular light source (2) has a mounting hole corresponding to the mounting thread blind hole (105). The threaded fastener passes through the mounting hole and is threadedly connected to the mounting thread blind hole (105) so that the annular light source (2) is fixed on the first end.

5. The combined light source according to claim 1, characterized in that, The ring light source (2) includes the ring light-emitting plate (21) and the ring housing (22). The annular light-emitting plate (21) is installed in the annular housing (22), and the diameter of the annular light-emitting plate (21) is larger the closer it is to the integral hemispherical shell (11).

6. The combined light source according to claim 1, characterized in that, The integral hemispherical shell (11) is a metal shell, and a diffuse reflection coating is provided on the inner wall surface to form the reflective inner shell surface (103).

7. The combined light source according to claim 6, characterized in that, The integral hemispherical shell (11) is an aluminum alloy shell.

8. The combined light source according to claim 1, characterized in that, The holes of the first detection hole (101) and the second light-emitting hole (201) have a smooth transition, and the diameters of the first detection hole (101) and the second light-emitting hole (201) are the same.

9. The combined light source according to claim 1, characterized in that, The diameter of the first detection hole (101) is larger the closer it is to the ring light source (2), and the minimum diameter of the second light-emitting hole (201) is greater than the minimum diameter of the first detection hole (101); The wall of the first detection hole (101) can reflect the light from the ring light source (2) onto the workpiece to be tested.

10. The combined light source according to claim 9, characterized in that, The second light-emitting aperture (201) is tilted so as to reflect part of the light from the ring light source (2) toward the wall of the first detection aperture (101).

Images