Portable solar blind ultraviolet light source device

Abstract

The utility model discloses a portable solar-blind ultraviolet light source device, which relates to the technical field of ultraviolet imaging and comprises an integrating sphere, a solar-blind ultraviolet light source component and a light outlet, and the inner wall of the integrating sphere is coated with a diffuse reflection layer; the solar blind ultraviolet light source assembly comprises an LED light source and a first adjustable diaphragm, the LED light source is arranged on one side of the integrating sphere, and the first adjustable diaphragm is used for adjusting the luminous flux of the LED light source entering the integrating sphere; the two light outlets are formed in one side of the integrating sphere, a second adjustable diaphragm, an optical filter and an attenuation piece are sequentially installed in each light outlet, and the second adjustable diaphragms are arranged close to an inner cavity of the integrating sphere. According to the solar blind ultraviolet light source device, the LED light source and the integrating sphere are adopted, so that the problem that an existing solar blind ultraviolet light source device cannot be portable and moved is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultraviolet imaging, in particular to a portable solar-blind ultraviolet light source device. Background Art

[0002] Solar-blind ultraviolet is ultraviolet light with a wavelength in the range of 240 - 280 nm. Due to atmospheric absorption, there is no interference source in this wavelength band on the ground during both the daytime with strong sunlight and the night without light. Therefore, it has the characteristics of reliability, sensitivity, and low interference. Signals such as flames and high-voltage discharges will generate light signals in the solar-blind ultraviolet band. Therefore, in industries such as power inspection and track detection, a solar-blind ultraviolet imager can sensitively detect abnormal discharge phenomena of high-voltage equipment.

[0003] During the research and development and use of solar-blind ultraviolet imagers, a solar-blind ultraviolet light source is often required. However, light sources such as plasma light sources, deuterium lamps, and lasers can cover the solar-blind ultraviolet band, but they have high requirements for the volume of the equipment and the installation and use environment, and cannot be made portable and mobile, and are not suitable for occasions such as outdoor environment calibration of imagers. Therefore, a portable solar-blind ultraviolet light source device is proposed. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a portable solar-blind ultraviolet light source device. Through the combined action of the light source emitted by the LED light source on the diffuse reflection layer and the diffuse reflection plate, a uniform and stable solar-blind ultraviolet light source can be obtained at the light outlet of the integrating sphere, effectively solving the problems in the background art.

[0005] To achieve the above purpose, the utility model provides a portable solar-blind ultraviolet light source device, including an integrating sphere, a solar-blind ultraviolet light source assembly, and a light outlet;

[0006] The inner wall of the integrating sphere is coated with a diffuse reflection layer;

[0007] The solar-blind ultraviolet light source assembly includes an LED light source and a first adjustable diaphragm. The LED light source is arranged on one side of the integrating sphere, and the first adjustable diaphragm is used to adjust the light flux of the LED light source entering the integrating sphere;

[0008] The light outlet is provided in two. The light outlet is opened on one side of the integrating sphere, and a second adjustable diaphragm, a filter, and an attenuation sheet are sequentially installed in the light outlet, and the second adjustable diaphragm is arranged close to the inner cavity of the integrating sphere.

[0009] Based on the above technical solutions, the utility model can be further improved as follows.

[0010] Further, the diffuse reflection layer is made of polytetrafluoroethylene material.

[0011] Further, the light source band range of the LED light source is between 240 - 280 nm.

[0012] Further, a diffuser plate is provided on the side of the first adjustable diaphragm away from the LED light source, and the diffuser plate is located inside the integrating sphere cavity.

[0013] Further, a base is provided on one side of the integrating sphere. The integrating sphere is connected to the base through a bracket. A lithium battery is provided inside the base, and a charging port and a power switch are provided on the base.

[0014] Further, a heat sink is provided on one side of the LED light source.

[0015] The beneficial effects of the present utility model are as follows: The present utility model provides a portable solar-blind ultraviolet light source device, which has the following advantages:

[0016] 1. By setting an integrating sphere and a solar-blind ultraviolet light source assembly in the present utility model, under the combined action of the diffuse reflection layer and the diffuser plate, the light emitted by the LED light source enables the light output port of the integrating sphere to obtain a uniform and stable solar-blind ultraviolet light source, thus solving the problems that the existing solar-blind ultraviolet light source devices cannot be portable and are not suitable for calibration in outdoor environments of imagers and other occasions.

[0017] 2. By setting a light output port in the present utility model and through the design of a double light output port, during use, the filter and the attenuation sheet can be pre-configured according to requirements, thereby avoiding frequent replacement of the filter and the attenuation sheet. When different configurations of the filter and the attenuation sheet are required, different light output ports can be aligned with the target.

[0018] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it according to the content of the specification, the following is a detailed description with reference to the preferred embodiments of the present utility model and the accompanying drawings. The specific implementation manners of the present utility model are given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 is a schematic structural diagram of an overall portable solar-blind ultraviolet light source device proposed by the present utility model.

[0021] Figure 2 is a top view sectional view of an overall portable solar-blind ultraviolet light source device proposed by the present utility model.

[0022] In the figure: 1, integrating sphere; 2, diffuse reflection layer; 3, light outlet; 4, solar-blind ultraviolet light source assembly; 5, LED light source; 6, first adjustable diaphragm; 7, diffuse reflection plate; 8, second adjustable diaphragm; 9, filter; 10, attenuation sheet; 11, base; 12, bracket; 13, lithium battery; 14, charging port; 15, power switch; 16, heat sink. Detailed implementation manners

[0023] The following combines the attached Figure 1-2 Describe the principles and features of the present utility model. The examples cited are only used to explain the present utility model and are not used to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the attached drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] As Figure 1-2 As shown, the present utility model provides a portable solar-blind ultraviolet light source device, including an integrating sphere 1, a solar-blind ultraviolet light source assembly 4 and a light outlet 3;

[0027] The inner wall of the integrating sphere 1 is coated with a diffuse reflection layer 2. The diffuse reflection layer 2 is made of polytetrafluoroethylene material. The polytetrafluoroethylene material of the diffuse reflection layer 2 adopts a foaming processing technology. Compared with the spraying process, it improves the high reflectivity in the solar-blind ultraviolet band and the stability during long-term use;

[0028] The solar-blind ultraviolet light source assembly 4 includes an LED light source 5 and a first adjustable diaphragm 6. The LED light source 5 is arranged on one side of the integrating sphere 1. The first adjustable diaphragm 6 is used to adjust the luminous flux of the LED light source 5 entering the integrating sphere 1. A base 11 is arranged on one side of the integrating sphere 1. The integrating sphere 1 is connected to the base 11 through a bracket 12. A lithium battery 13 is arranged in the base 11, and a charging port 14 and a power switch 15 are arranged on the base 11. The LED light source 5 is connected to the lithium battery 13 in the base 11 through a light source power supply line. The lithium battery 13 is charged through the charging port 14, and the lithium battery 13 can be powered by a mobile power supply such as a power bank, so as to solve the power supply demand of the LED light source 5 when used outdoors;

[0029] Further, a diffuser plate 7 is arranged on the side of the first adjustable diaphragm 6 away from the LED light source 5. The diffuser plate 7 is located inside the integrating sphere 1. Through the arrangement of the diffuser plate 7, the problem that light directly irradiates the outlet, resulting in uneven light distribution, is avoided;

[0030] Further, the light source wavelength range of the LED light source 5 is between 240 - 280 nm, and a heat sink 16 is arranged on one side of the LED light source 5;

[0031] The light outlet 3 is arranged in two. The light outlet 3 is opened on one side of the integrating sphere 1. A second adjustable diaphragm 8, a filter 9 and an attenuation sheet 10 are sequentially installed in the light outlet 3. The second adjustable diaphragm 8 is arranged close to the inner cavity of the integrating sphere 1. The second adjustable diaphragm 8 is used to adjust the size of the light outlet 3. By adjusting the second adjustable diaphragm 8, the imaging response of the imager to targets of different sizes can be tested. The filter 9 can be replaced according to actual needs. By replacing different band-pass filters 9, the response of different wavelength bands can be tested. Similarly, attenuation sheets with different attenuation levels can be replaced according to actual needs to adjust the light intensity of the light outlet. Through the design of the double light outlet 3, during use, the filter 9 and the attenuation sheet 10 can be pre-configured according to requirements, thereby avoiding frequent replacement of the filter 9 and the attenuation sheet 10. When different configurations of the filter 9 and the attenuation sheet 10 are required, different light outlets 3 are aligned with the target;

[0032] Further, under the combined action of the diffuser layer 2 and the diffuser plate 7, the light source emitted by the LED light source 5 enables the light outlet 3 of the integrating sphere 1 to obtain a uniform and stable solar-blind ultraviolet light source, thus solving the problems that the existing solar-blind ultraviolet light source device cannot be portable and is not suitable for occasions such as outdoor environment calibration of imagers.

[0033] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to what is shown in the accompanying drawings of the specification and the above description; however, any minor changes, modifications and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the substantial technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A portable solar-blind ultraviolet light source device, characterized in that, Comprising: An integrating sphere (1), the inner wall of the integrating sphere (1) is coated with a diffuse reflection layer (2); A solar-blind ultraviolet light source assembly (4), the solar-blind ultraviolet light source assembly (4) includes an LED light source (5) and a first adjustable diaphragm (6), the LED light source (5) is arranged on one side of the integrating sphere (1), and the first adjustable diaphragm (6) is used to adjust the light flux of the LED light source (5) entering the integrating sphere (1); Light exit ports (3), two light exit ports (3) are provided, the light exit ports (3) are opened on one side of the integrating sphere (1), and a second adjustable diaphragm (8), a filter (9) and an attenuation sheet (10) are sequentially installed in the light exit ports (3), and the second adjustable diaphragm (8) is arranged close to the inner cavity of the integrating sphere (1).

2. The portable solar-blind ultraviolet light source device according to claim 1, wherein, The diffuse reflection layer (2) is made of polytetrafluoroethylene material.

3. The portable solar-blind ultraviolet light source device according to claim 1, characterized in that, The light source wavelength range of the LED light source (5) is between 240 - 280 nm.

4. A portable solar-blind ultraviolet light source device according to claim 1, characterized in that, A diffuse reflection plate (7) is provided on the side of the first adjustable diaphragm (6) away from the LED light source (5), and the diffuse reflection plate (7) is located inside the integrating sphere (1).

5. A portable solar-blind ultraviolet light source device according to claim 1, characterized in that, A base (11) is provided on one side of the integrating sphere (1), the integrating sphere (1) is connected to the base (11) through a bracket (12), a lithium battery (13) is provided inside the base (11), and a charging port (14) and a power switch (15) are provided on the base (11).

6. The portable solar-blind ultraviolet light source device according to claim 1, characterized in that, A heat sink (16) is provided on one side of the LED light source (5).

Images