Flashing light source capable of being used in infrared laser environment

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By using a filter in the light source to intercept specific infrared bands, the impact of infrared laser on the light source is solved, the stable operation of the light source in the infrared laser environment is achieved, and the universality and cost-effectiveness of the light source are improved.

CN222977979UActive Publication Date: 2025-06-13东莞康视达自动化科技有限公司

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Patent Information

Application Number: CN202422216240.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-09-10
Publication Date: 2025-06-13
Estimated Expiration: 2034-09-10

AI Technical Summary

Technical Problem

Existing light sources are easily affected in infrared laser environments, resulting in the working state of the light sources being affected by extreme environmental factors and it is difficult to effectively intercept specific infrared bands.

Method used

A flash light source including the main housing of the light source, the main board of the light source, the filter, the diffusing plate and the cover plate is designed. The filter intercepts specific infrared bands and ensures that the transmittance of the remaining visible light bands is not less than 95%.

Benefits of technology

While ensuring that the light source emits normal light, the impact of infrared laser on the light source lamp beads is reduced, the versatility of the light source is improved, and the structure is simplified to replace the filter and reduce the cost of use.

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Abstract

The utility model discloses an explosion flash light source capable of being used in an infrared laser environment, which comprises a light source main shell, a light source main board, a filter lens, a diffusion plate and a cover plate, a first mounting cavity is formed in the light source main shell, the light source main board is arranged in the first mounting cavity, and the filter lens is arranged in the first mounting cavity. A bearing part is arranged above the first mounting cavity far away from the light source main board, the filter lens and the diffusion plate are sequentially mounted on the bearing part from top to bottom in an overlapped manner, a first coating layer is arranged on the surface, adjacent to the light outlet, of the filter lens, the incident angle of the filter lens is 0 degree, the transmittance of the filter lens to light with the wavelength of 400-700 nm is greater than 95%, and the first coating layer is a second coating layer. And the reflectivity for light with the wavelength of 1070nm + / -10 is greater than 99%. According to the utility model, specific infrared bands in the environment are intercepted, and the transmittance of other visible light bands is not lower than 95%, so that the influence of infrared laser on light source lamp beads is reduced to the minimum under the condition that normal light emission of the light source is ensured.

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Description

Technical Field

[0001] The utility model relates to the technical field of detection light sources, and particularly relates to a stroboscopic light source that can be used in an infrared laser environment. Background Art

[0002] During the use of light source products, there will be various extreme influences, such as acidity and a large amount of dust. These environmental factors are constantly affecting the working state of the light source. In modern industrial production, lasers are applied in all aspects of the industry, such as positioning, welding, ranging, etc., and have become an indispensable technical means. Among them, preventing the influence of lasers on the light source has become a housing worthy of research, and these influences include, but are not limited to, the mutual influence between the laser and the lighting light source. Summary of the Invention

[0003] The purpose of the utility model is to overcome the above-mentioned defects in the prior art, and provide a stroboscopic light source that can be used in an infrared laser environment, intercept a specific infrared band in this environment, and ensure that the transmittance of the remaining visible light bands is not less than 95%. Thus, while ensuring the normal light emission of the light source, the influence of infrared laser on the light source lamp beads is minimized.

[0004] To achieve the above purpose, the utility model provides a stroboscopic light source that can be used in an infrared laser environment, including: a light source main housing, a light source main board, a filter lens, a diffuser, and a cover plate. A first installation cavity is formed inside the light source main housing, and the light source main board is installed in the first installation cavity. A supporting part is provided above the first installation cavity far from the light source main board. The filter lens and the diffuser are stacked and installed on the supporting part from top to bottom in sequence. The cover plate is provided with a light outlet, and the cover plate is fixedly connected to the light source main housing and presses the filter lens and the diffuser. A first coating layer is provided on the surface of the filter lens adjacent to the light outlet. The incident angle of the filter lens is 0 degree, and the transmittance of light with a wavelength of 400 - 700nm is greater than 95%, and the reflectivity of light with a wavelength of 1070nm ± 10 is greater than 99%.

[0005] Further, the filter lens is a filter lens made of K9 glass, and the reflectivity of the filter lens for light with a wavelength of 400 - 700nm is less than 0.5%. In this way, this surface will not reflect light, ensuring that most of the light can pass through the entire filter.

[0006] Further, the size of the light outlet matches the size of the first installation cavity.

[0007] Further, the supporting part is a concave structure opened above the first installation cavity, and the height of the supporting part is equal to the sum of the thickness of the filter lens and the thickness of the diffuser. In this way, the cover plate can press the filter lens and the diffuser, making their installation more stable.

[0008] Further, the first coating layer is an infrared cut-off film layer.

[0009] Further, between the optical mirror and the diffuser plate, the four corners of the supporting portion have second rounded corners that match the first rounded corners. This rounded corner design can reduce the presence of sharp edges and corners, thereby reducing the risk of damage or harm to components caused by collision or contact with sharp edges.

[0010] Further, it further includes a base, the base is fixedly connected to the lower end of the light source main housing, both ends of the base extend outward to form external connection portions, and first connection holes are provided on the external connection portions. In this way, it can be connected to other components through the base, facilitating the practicality of the present utility model and enabling it to cooperate with the use of different devices.

[0011] Further, second connection holes are provided on the base, and third connection holes are provided on the light source main board. If it can achieve the detachable connection between the light source main board and the base, the stability of the light source main board during operation will be better.

[0012] Further, it further includes a connector. A connection groove communicating with the first installation cavity is opened on the inner wall of the light source main housing, and a fourth connection hole penetrating through the light source main housing is opened on the connection groove. One end of the connector passes through the fourth connection hole and is connected to the light source main board. Through the setting of the connection groove, the connector can be better installed, and it also plays a certain role in heat dissipation and installation convenience for the light source main board.

[0013] Further, the diffuser plate is made of a transparent acrylic plate, a transparent PVC plate, a transparent PC plate, or a transparent PET plate, and a fine texture structure or a frosted structure is provided on the light-emitting surface of the diffuser plate. It can achieve the adjustment of the light rays emitted by the light source main board by the diffuser plate, so that the light rays are evenly emitted and output through the filter lens.

[0014] Compared with the prior art, the present utility model has the following advantages: By providing a filter lens on the surface of the light source, the filter lens intercepts specific infrared wavelength bands in this environment, and ensures that the transmittance of the remaining visible light wavelength bands is not less than 95%. Thus, while ensuring the normal light emission of the light source, the influence of the infrared laser on the light source lamp beads is minimized. And because the production of the filter lens is controllable, the intercepted wavelength bands can be adjusted. Therefore, this light source structure is not limited to this single infrared wavelength band environment, effectively improving the versatility of the light source. Moreover, the structure is simple. On the premise of meeting the requirements, the light source filter is easy to replace, effectively reducing the use cost of the light source. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is a schematic structural diagram of a stroboscopic light source that can be used in an infrared laser environment of the present invention;

[0017] Figure 2 is Figure 1 an explosion schematic diagram;

[0018] Figure 3 is Figure 1 a schematic cross-sectional view of line A-A in

[0019] Figure 4 a schematic structural diagram of the main light source housing of the present invention;

[0020] Figure 5 a schematic structural diagram of the cover plate of the present invention;

[0021] Figure 6 is a partial cross-sectional schematic diagram of the filter lens of the present invention.

[0022] In the figure, it includes:

[0023] 1. Main light source housing; 11. First installation cavity; 12. Supporting part; 13. Connection groove; 131. Fourth connection hole; 2. Light source main board; 21. Third connection hole; 3. Filter lens; 31. First coating layer; 4. Diffuser plate; 5. Cover plate; 51. Light outlet; 6. Base; 61. External connection part; 62. First connection hole; 63. Second connection hole; 7. Connector. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present embodiments. Obviously, the described embodiments are one embodiment of the present invention, rather than all embodiments. Based on the present embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as described in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0027] Please refer to Figures 1 to 6 , an embodiment of the present utility model provides a stroboscopic light source that can be used in an infrared laser environment, including: a light source main housing 1, a light source main board 2, a filter lens 3, a diffuser plate 4, and a cover plate 5;

[0028] As Figures 1 to 5 shown, a first installation cavity 11 is formed inside the light source main housing 1. The light source main board 2 is installed in the first installation cavity 11. A supporting portion 12 is provided above the first installation cavity 11 away from the light source main board 2. The filter lens 3 and the diffuser plate 4 are stacked and installed on the supporting portion 12 from top to bottom in sequence. The cover plate 5 is fixedly connected to the light source main housing 1 and presses the filter lens 3 and the diffuser plate 4 tightly. In particular, in this embodiment, the above-mentioned supporting portion 12 is a concave structure opened above the first installation cavity 11. The height of the supporting portion 12 is equal to the sum of the thickness of the filter lens 3 and the thickness of the diffuser plate 4. When the filter lens 3 and the diffuser plate 4 are installed, the outer side of the filter lens 3 is just flush with the outer edge of the first installation cavity 11. The cover plate 5 is provided with a light outlet 51, and the size of the light outlet 51 matches the size of the first installation cavity 11. In this way, when the cover plate 5 is installed on the light source main housing 1 through bolts or the like, the cover plate 5 can tightly press the filter lens 3 and the diffuser plate 4, making their installation more stable.

[0029] In this embodiment, a first coating layer 31 is provided on the surface of the filter lens 3 adjacent to the light outlet 51. The first coating layer 31 is an infrared cut-off film layer. The incident angle of the filter lens 3 is 0 degrees, and the transmittance of light with a wavelength of 400 - 700 nm is greater than 95%, and the reflectance of light with a wavelength of 1070 nm ± 10 is greater than 99%; the filter lens 3 is a filter lens made of K9 glass, so that the reflectance of light with a wavelength of 400 - 700 nm by the filter lens 3 is less than 0.5%. In this way, this surface will not reflect light, ensuring that most of the light can pass through the entire filter lens 3.

[0030] The four corners of the filter 3, the diffuser plate 4, and the supporting part 12 are all rounded corners that match each other. In addition, the four corners of the light source circuit board and the first installation cavity 11 are also set as rounded corners. Through the rounded corner design, the presence of sharp edges and corners can be reduced, thereby reducing the risk of damage or harm to components caused by collision or touching sharp edges.

[0031] The diffuser plate 4 of this embodiment is made of a transparent acrylic plate, a transparent PVC plate, a transparent PC plate, or a transparent PET plate. The light-emitting surface of the diffuser plate 4 is provided with a fine texture structure or a frosted structure. It can realize the adjustment of the light rays incident on the diffuser plate 4 by the light source main board 2, so that the light rays are evenly incident and output through the filter 3.

[0032] In addition, in order to make the installation of the light source circuit board more convenient and improve the versatility of the present utility model, this embodiment further includes a base 6. The base 6 is fixedly connected to the lower end of the light source main housing 1. The two ends of the base 6 extend outward to form external connection parts 61, and first connection holes 62 are provided on the external connection parts 61. In this way, the base 6 can be connected to other components, facilitating the practicality of the present utility model and enabling it to be used in conjunction with different devices. A second connection hole 63 is provided on the base 6, and a third connection hole 21 is provided on the light source main board 2. The detachable connection between the light source circuit board and the base 6 is realized by screwing the second connection hole 63 and the third connection hole 21, making the stability of the light source main board 2 better during operation.

[0033] This example further includes a connector 7. A connection groove 13 communicating with the first installation cavity 11 is provided on the inner wall of the light source main housing 1. A fourth connection hole 131 penetrating the light source main housing 1 is provided on the connection groove 13. One end of the connector 7 passes through the fourth connection hole 131 and is connected to the light source main board 2. Through the setting of the connection groove 13, the connector 7 can be better installed, and it can play a certain role in heat dissipation and installation convenience for the light source main board 2.

[0034] A brief description of the working principle of the present utility model: When in use, it can be installed on the detection device through the external connection part 61 of the base 6. The present utility model is provided with a filter 3 on the light source surface. The filter 3 intercepts specific infrared wavelength bands and ensures that the transmittance of the remaining visible light wavelength bands is not less than 95%. Thus, while ensuring the normal light emission of the light source, the influence of the infrared laser on the light source lamp beads is minimized. And because the production of the filter 3 is controllable, the intercepted wavelength bands can be adjusted. Therefore, this light source structure is not limited to this single infrared wavelength band environment, effectively improving the versatility of the light source. Moreover, the structure is simple. On the premise of meeting the requirements, the light source filter is easy to replace, effectively reducing the use cost of the light source.

[0035] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flash light source that can be used in an infrared laser environment, characterized in that: The invention comprises: a light source main housing (1), a light source main board (2), a filter (3), a diffusion plate (4) and a cover plate (5); a first installation cavity (11) is formed inside the light source main housing (1); the light source main board (2) is installed in the first installation cavity (11); a supporting portion (12) is arranged above the first installation cavity (11) away from the light source main board (2); the filter (3) and the diffusion plate (4) are installed on the supporting portion (12) in a stacked manner from top to bottom. The cover plate (5) is provided with a light outlet (51), the cover plate (5) is fixedly connected to the main housing (1) of the light source and presses the filter (3) and the diffuser (4), the surface of the filter (3) adjacent to the light outlet (51) is provided with a first coating layer (31), the incident angle of the filter (3) is 0 degrees, and the transmittance of light with a wavelength of 400-700nm is greater than 95%, and the reflectance of light with a wavelength of 1070nm±10 is greater than 99%.

2. The flash light source that can be used in an infrared laser environment according to claim 1, characterized in that: The optical filter (3) is a filter made of K9 glass, and the reflectivity of the optical filter (3) to light with a wavelength of 400-700nm is less than 0.5%.

3. The flash light source that can be used in an infrared laser environment according to claim 1, characterized in that: The size of the light outlet (51) matches the size of the first installation cavity (11).

4. The flash light source that can be used in an infrared laser environment according to claim 3, characterized in that: The supporting portion (12) is a concave structure opened above the first installation cavity (11), and the height of the supporting portion (12) is equal to the sum of the thickness of the filter (3) and the thickness of the diffuser plate (4).

5. The flash light source that can be used in an infrared laser environment according to claim 1, characterized in that: The first coating layer (31) is an infrared cut-off film layer.

6. The flash light source that can be used in an infrared laser environment according to claim 1, characterized in that: The four corners of the filter (3), the diffusion plate (4) and the supporting portion (12) are all rounded corners that match each other.

7. The flash light source that can be used in an infrared laser environment according to claim 1, characterized in that: It also comprises a base (6), the base (6) being fixedly connected to the lower end of the main housing (1) of the light source, the two ends of the base (6) extending outwards to form an external connection portion (61), and a first connection hole (62) being provided on the external connection portion (61).

8. The flash light source that can be used in an infrared laser environment according to claim 7, characterized in that: The base (6) is provided with a second connection hole (63), and the light source main board (2) is provided with a third connection hole (21).

9. The flash light source usable in an infrared laser environment according to claim 1, characterized in that: It also comprises a connecting head (7), the inner wall of the main housing (1) of the light source is provided with a connecting groove (13) which is connected with the first mounting cavity (11), the connecting groove (13) is provided with a fourth connecting hole (131) which passes through the main housing (1) of the light source, and one end of the connecting head (7) passes through the fourth connecting hole (131) to be connected with the light source main board (2).

10. The flash light source that can be used in an infrared laser environment according to claim 1, characterized in that: The diffusion plate (4) is made of a transparent acrylic plate, a transparent PVC plate, a transparent PC plate or a transparent PET plate, and the light-emitting surface of the diffusion plate (4) is provided with a fine-grained surface structure or a frosted structure.