Device for generating multi-level gradient low light source

Abstract

The utility model discloses a device for generating a multi-energy-level gradient low light source, which comprises a shell with an accommodating cavity inside, a transparent tritium gas pipe filled with tritium gas inside is arranged in the accommodating cavity, and a luminous coating is coated on the inner wall of the tritium gas pipe; the shell is provided with a plurality of light-emitting holes arranged in an array mode, a plurality of light-transmitting rods which are arranged in an array mode and are the same in length are further arranged in the containing cavity, one ends of the light-transmitting rods are arranged in the light-emitting holes in a one-to-one correspondence mode, the other ends of the light-transmitting rods are sleeved with light-proof sleeves, and according to the arrangement sequence, the light-transmitting rods are arranged in the light-emitting holes in a one-to-one correspondence mode. The lengths of the sleeves on the light-transmitting rods are sequentially increased, so that the exposed areas on the light-transmitting rods are sequentially reduced; and the light-transmitting rod and the tritium gas pipe are positioned at different plane heights, so that the light-transmitting rod and the tritium gas pipe are staggered in height. The utility model has the characteristics of long service life, small volume and convenience in use.

Description

Technical Field

[0001] The utility model belongs to the technical field of low light sources, and in particular relates to a device for generating multi-energy-level gradient low light sources. Background Art

[0002] At present, there are two main types of low light source methods that can produce multi-level energy gradients (low light source, as the name implies, is light below the threshold that the human eye can see, and can be used for calibration and performance verification of light detection instruments), as follows:

[0003] 1. Using chemiluminescent reagents with different proportions of dilutions. This type of chemiluminescent reagent can produce a multi-level low-light source by participating in energy transfer in the luminescent reaction and ultimately releasing energy in the form of emitted photons, thereby producing a low-light source. Then, through a combination of dilutions in different proportions, a low-light source with a multi-energy gradient can be achieved. The time for continuous production of a multi-energy gradient low-light source is short, and the maximum service life of the multi-energy gradient will not exceed about 5 years. The low-light source that can be produced by the chemiluminescent reaction of this type of chemiluminescent reagent is affected by many factors, such as unstable luminescence intensity, difficult to control the mixing amount of multiple reagents, temperature changes in the use environment, etc. Therefore, this type of method is difficult to use for testing and measurement purposes. Such products are rarely used as multi-energy gradient low-light sources in industry or research.

[0004] 2. Use the method of converting electrical energy into light energy to generate a multi-level gradient low light source, such as using luminous electronic components (such as LED lights) and related circuits such as batteries as multi-level gradient light sources, and then transmit the light to the apertures of various output targets through optical fiber devices or translucent objects. In the process of transmitting light to the target aperture, the optical fiber device or the translucent object is partially covered with an opaque sleeve, so that only the part exposed to the light source receives the light source. Place multiple optical fiber devices or translucent objects under the light source and cover them with uneven opaque sleeves respectively, so that multiple energy levels of the received light sources are formed. Energy level gradient, and then according to the energy level gradient of the desired target, the light-proof sleeve is put on the optical fiber device or the light-transmitting object, and the low light source with multi-energy level gradient of the target can be obtained, thereby achieving a low light source with multiple energy level gradients. This method has a long service life and a relatively stable multi-energy level gradient, and can generally provide power through direct wired plug-in or battery charging and discharging; but this method requires power supply, and due to the existence of power supply and other related circuits, this type of device is large in size, which does not meet the demand for small equipment in the relevant detection field, and it needs to be charged or directly powered in use, which makes it inconvenient. Utility Model Content

[0005] The utility model aims to overcome the existing technical defects and provide a device for generating a multi-level gradient low light source, which has the characteristics of long life, small size and convenient use.

[0006] In order to solve the above technical problems, the utility model provides a device for generating a multi-level gradient low light source, comprising a shell having a cavity inside, wherein a tritium gas tube filled with tritium gas and transparent is arranged in the cavity, and a luminescent coating is coated on the inner wall of the tritium gas tube; a plurality of light emitting holes arranged in an array are arranged in the shell, and a plurality of light-transmitting rods arranged in an array and having the same length are also arranged in the cavity, one end of the light-transmitting rods is arranged in the light-emitting holes in a one-to-one correspondence, and the other end of the light-transmitting rods is respectively provided with an opaque sleeve, and in the order of arrangement, the length of the sleeve on each of the light-transmitting rods increases successively, so that the exposed area on the light-transmitting rod decreases successively; the light-transmitting rod and the tritium gas tube are at different plane heights, so that the two are displaced in height.

[0007] Furthermore, the tritium gas tube is arranged on one side of the cavity, and the light-transmitting rods are arranged on one side of the tritium gas tube.

[0008] Furthermore, in the order of arrangement, starting from the side close to the tritium gas tube, the length of the sleeve on each of the light-transmitting rods increases successively.

[0009] Furthermore, in the order of arrangement, starting from the side far away from the tritium gas tube, the length of the sleeve on each of the light-transmitting rods increases successively.

[0010] Furthermore, a light uniforming film is provided in the light exit hole and is located outside the light-transmitting rod.

[0011] Furthermore, the shell body includes an upper shell and a lower cover that are detachably connected, the rear end of the upper shell is provided with a groove, and the lower cover is covered on the rear end of the groove to form the cavity between the upper shell and the lower cover; the front and rear sides of the groove are respectively provided with a first supporting part and a second supporting part, the tritium gas tube is suspended and fixed between the first supporting part and the second supporting part, the light-transmitting rod is straddled on the first supporting part and the second supporting part, so that the height of the light-transmitting rod in the groove is higher than the height of the tritium gas tube in the groove, and the lower cover presses the sleeve inward.

[0012] Furthermore, the first support portion is recessed with a plurality of limit grooves arranged in an arranged manner and corresponding to each other to accommodate the sleeve; the second support portion is penetrated with a plurality of light emitting holes arranged in an arranged manner, one end of the light-transmitting rod is provided with a light emitting portion perpendicular thereto, and one end of the light emitting portion is arranged in the light emitting hole.

[0013] Furthermore, the tritium gas tube is detachably fixed between the first supporting part and the second supporting part through a fixing piece.

[0014] Furthermore, the tritium gas tube is made of transparent glass; the luminescent coating is a fluorescent coating or a phosphorescent coating; the light-transmitting rod is made of transparent acrylic or transparent glass; and the sleeve is an opaque silicone tube or a rubber tube.

[0015] In the second aspect, the utility model also provides a device for generating a multi-level gradient low-light source, comprising a shell having a cavity inside, wherein a transparent tritium gas tube filled with tritium gas is provided in the cavity, and a luminescent coating is coated on the inner wall of the tritium gas tube; a plurality of light emitting holes arranged in an array are provided on the shell, and a plurality of light-transmitting rods arranged in an array and whose lengths increase or decrease sequentially are provided in the cavity, one end of the light-transmitting rods is arranged in the light-emitting holes in a one-to-one correspondence, and the tritium gas tube is arranged on one side of the longest light-transmitting rod or the shortest light-transmitting rod; and the light-transmitting rod and the tritium gas tube are at different plane heights so that the two are displaced in height.

[0016] The utility model has the following beneficial effects:

[0017] In the present invention, naturally luminescent substances are used as light sources for producing multi-energy gradients, such as tritium and other naturally luminescent substances. The half-life of tritium is more than 12 years, the life is long, and it has a predictable decay curve. Tritium gas is filled into a closed and transparent tritium gas tube. Tritium decays with very low energy and will only cause harm to humans when inhaled and exposed to a large amount of tritium. Therefore, the tritium in the device is relatively small and sealed in the tritium gas tube, which will not cause harm to the human body. Tritium gas releases electrons during β decay, and these released electrons emit light when hitting the luminescent coating coated on the inner wall of the tritium gas tube, thereby achieving the purpose of radiant luminescence. The tritium gas tube is used as a light source for multi-energy gradients, and the light is then transmitted to each light exit hole on the shell through a light-transmitting rod. In the process of light transmission to the light exit hole, part of the light-transmitting rod is sheathed with an opaque sleeve, so that only the part exposed to the light source receives light. A light source is provided, and a plurality of light-transmitting rods are placed under the light source, and are respectively covered with sleeves of increasing lengths, so that the plurality of light-transmitting rods form a plurality of energy level gradients at the energy level of the received light source. The light-transmitting rods can also be covered with sleeves of different lengths according to the required energy level gradient, so as to obtain a low light source with multiple energy level gradients for the required target, thereby achieving a low light source with multiple energy level gradients. Since the tritium gas tube is naturally luminous, no external power supply is required, so that the size of such a device is small, and no charging or power supply is required during use, so it is convenient to use; and the length of the sleeve is increased in sequence, so that the brightness of the light emitted from the light exit holes arranged in a corresponding manner is reduced in sequence, which is convenient for the calibration and performance verification of the light detection instrument. The number of the light exit holes and the light-transmitting rods and the aperture of the light exit holes can be changed according to actual needs to adapt to different instrument detection needs, thereby adapting to the testing needs of more and wider instruments.

[0018] Secondly, a height difference is formed between the position of the tritium gas tube and the position of the light-transmitting rod, so that all the light-transmitting rods can receive the low light source emitted at a low position, thereby improving the uniformity of light reception and outward transmission, and avoiding the situation where the light-transmitting rods at the rear are blocked by the light-transmitting rods in front when they are set at the same height, resulting in a reduction in the intensity of light received by the light-transmitting rods at the rear, which will cause the light source of the front light outlet hole to be too bright and the light source of the rear light outlet hole to be too dark; and the uniform light film added at the light outlet hole can further improve the uniformity of light and make the light more uniform.

[0019] In addition, the tritium gas tube is formed with a detachable structural design through the fixing parts. The tritium gas tube and the fixing parts are fixed to form an independent low-light source component. During use, if the half-life of the tritium gas in the tritium gas tube is reached or there is a problem with the low-light source, the device can directly replace the low-light source component composed of the tritium gas tube and the fixing parts, while the light-transmitting rod and the shell can continue to be used. If a single light-transmitting rod is damaged, it can also be replaced separately, thereby reducing maintenance costs.

[0020] Additional aspects and advantages of the present invention will be partially given in the following description, which will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 is a schematic diagram of the device in Example 1;

[0023] Figure 2 is a schematic diagram of the device in Example 1 from another perspective;

[0024] Figure 3 is a cross-sectional view of the device in Example 1;

[0025] Figure 4 This is a schematic diagram of the device in Example 1 after removing the lower cover;

[0026] Figure 5 for Figure 4 Schematic diagram of the decomposition of

[0027] Figure 6 for Figure 4 A top view of the

[0028] Figure 7 This is a schematic diagram of the device in Example 2. DETAILED DESCRIPTION

[0029] In order to more fully understand the technical content of the present invention, the present invention will be further introduced and explained in conjunction with the accompanying drawings and specific embodiments below; it should be noted that descriptions such as "first" and "second" in the text are used to distinguish different components, etc., and do not represent the order of precedence, nor do they limit the "first" and "second" to different types.

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0031] Example

[0032] like Figures 1 to 6As shown, the device for generating a multi-level gradient low light source shown in this embodiment comprises a shell 1 having a cavity 10 therein, wherein a tritium gas tube 2 filled with tritium gas and transparent is arranged in the cavity 10, and a luminescent coating is coated on the inner wall of the tritium gas tube 2, wherein the luminescent coating is preferably a fluorescent coating or a phosphorescent coating, and the tritium gas releases electrons during β decay, and when the released electrons hit the luminescent coating coated on the inner wall of the tritium gas tube, fluorescence or phosphorescence is emitted, thereby achieving the purpose of radiant luminescence; a plurality of light emitting holes 11 arranged in an array are arranged on the shell 1, and a plurality of light emitting holes 11 arranged in an array and long are also arranged in the cavity 10. The light-transmitting rods 3 are provided with light-transmitting rods 3 of the same length, and the light-transmitting rods 3 are used to receive the light emitted by the tritium gas tube 2. One end of the light-transmitting rods 3 is arranged in a one-to-one correspondence in the light-emitting holes 11, that is, the light-transmitting rods 3 receive the light source and transmit it outward through the light-emitting holes 11. The other ends of the light-transmitting rods 3 are all covered with opaque sleeves 4, and in the order of arrangement, the length of the sleeves 4 on each light-transmitting rod 3 increases from front to back, so that the exposed area on the light-transmitting rods 3 decreases in sequence, so that the energy level of the light source that each light-transmitting rod can receive is different, showing a trend of gradually decreasing, forming multiple energy level gradients, and different energy level gradients can be replaced according to the required energy level gradients. By covering the light-transmitting rod with a sleeve of the same length, a low-light source with multiple energy levels of the desired target can be obtained, thereby achieving a low-light source with multiple energy levels of gradients. Since the tritium gas tube is naturally luminous, no external power supply is required, making the size of such a device small and convenient to use without charging or power supply. The length of the sleeve increases successively, so that the brightness of the light emitted from the correspondingly arranged light-emitting holes decreases successively, which is convenient for the calibration and performance verification of the light detection instrument. The number of the light-emitting holes and the light-transmitting rods and the aperture of the light-emitting holes can be changed according to actual needs. , to adapt to different instrument detection requirements, so as to adapt to the testing requirements of more and wider instruments; the light-transmitting rod 3 and the tritium gas tube 2 are at different plane heights in the cavity, so that the two are misaligned in height, that is, there is a height difference, so that all light-transmitting rods can receive the low light source emitted at the low position, improve the uniformity of light reception and outward conduction, and avoid the situation where the light-transmitting rods at the back are blocked by the light-transmitting rods in front when they are set at the same height, so that the intensity of light received by the light-transmitting rods at the back is reduced, which will cause the light source of the front light outlet hole to be too bright and the light source of the rear light outlet hole to be too dark.

[0033] In one embodiment, the tritium gas tube 2 is arranged on one side of the cavity 10, and the light-transmitting rods 3 are arranged on one side of the tritium gas tube 2, that is, all the light-transmitting rods 3 are located on the same side of the tritium gas tube 2, which is convenient for installation in the cavity and avoids mutual influence between the two during installation; of course, in other implementation schemes, due to the height difference between the tritium gas tube and the light-transmitting rod, as long as there is no influence between the two during installation, the tritium gas tube 2 can also be located below or above all the tritium gas tubes 2, preferably in the middle of all the tritium gas tubes.

[0034] In one embodiment, if Figure 4-6As shown, in the order of arrangement, starting from the side close to the tritium gas tube 2, the length of the sleeve 4 on each light-transmitting rod 3 increases successively, that is, the closer to the tritium gas tube 2, the smaller the area on the light-transmitting rod 3 blocked by the sleeve 4, and the larger the area exposed for receiving light.

[0035] In another embodiment, Figure 6 The structure shown in is just the opposite. In order of arrangement, starting from the side farthest from the tritium gas tube 2, the length of the sleeve 4 on each light-transmitting rod 3 increases successively, that is, the closer to the tritium gas tube 2, the larger the area on the light-transmitting rod 3 blocked by the sleeve 4, and the smaller the area exposed for receiving light.

[0036] In one embodiment, if Figure 5 As shown, a light uniforming film 5 is provided in the light exit hole 11 and is located outside the light-transmitting rod 3. The light uniforming film added at the light exit hole can further improve the uniformity of light and make the light more uniform.

[0037] In one embodiment, if Figure 3-6 As shown, the shell 1 includes an upper shell 100 and a lower cover 101 that are detachably connected by screws, a groove 102 is recessed at the rear end of the upper shell 100, and the lower cover 101 covers the rear end opening of the groove 102 to form a cavity 10 between the upper shell 100 and the lower cover 101; a first support portion 103 and a second support portion 104 are respectively protruded on the front and rear sides of the groove 102, and the tritium gas tube 2 is suspended and fixed between the first support portion 103 and the second support portion 104. The tritium gas tube 2 is suspended to avoid the shell from affecting the output of its light source as much as possible, and the light-transmitting rod 3 is straddled on the first support portion 103 and the second support portion 104, so that the height of the light-transmitting rod 3 in the groove 102 is higher than the height of the tritium gas tube 2 in the groove 102, and the lower cover 101 presses the sleeve 4 inwardly to avoid the problem of self-rotation deviation of the light-transmitting rod during use.

[0038] In one embodiment, if Figure 5 As shown, the first support portion 103 is provided with a plurality of limit grooves 105 arranged in an arranged manner and corresponding to each other to accommodate the sleeve 4; the second support portion 104 is penetrated by a plurality of light emitting holes 11 arranged in an arranged manner, and one end of the light-transmitting rod 3 is provided with a light emitting portion 31 perpendicular thereto, and one end of the light emitting portion 31 is arranged in the light emitting hole 11.

[0039] In one embodiment, if Figure 3-6As shown, the tritium gas tube 2 is detachably fixed between the first support portion 103 and the second support portion 104 by a fixing member 6, both ends of the fixing member 6 are fixed to the first support portion 103 and the second support portion 104 by screws, and a space for accommodating the tritium gas tube 2 is provided in the middle of the fixing member 6, and one end of the tritium gas tube 2 is fixed to the fixing member 6 by glue or dispensing to form an independent integrated low-light source component. During use, if the half-life time of the tritium gas in the tritium gas tube is reached or a problem occurs with the low-light source, the device can directly replace the low-light source component composed of the tritium gas tube and the fixing member, while the light-transmitting rod and the shell can continue to be used, and a single light-transmitting rod can also be replaced separately after being damaged, thereby reducing maintenance costs.

[0040] In other embodiments, the tritium gas tube is made of transparent glass.

[0041] In other embodiments, the material of the light-transmitting rod is transparent acrylic or transparent glass.

[0042] In other embodiments, the sleeve is an opaque silicone tube or rubber tube, so that the sleeve has a certain degree of softness and elasticity, which facilitates elastic deformation when the lower cover is pressed inward.

[0043] In other embodiments, the limiting groove may be a square groove. By utilizing the deformable characteristic of the sleeve, when the lower cover is pressed inwardly, the sleeve may be deformed to fill the gap between the sleeve and the groove, thereby forming a limiting effect on the sleeve and the light-transmitting rod.

[0044] In other embodiments, the limiting groove may also be an arc-shaped groove matching the outer shape of the sleeve, so as to limit the sleeve and the light-transmitting rod.

[0045] Example 2

[0046] like Figure 7 As shown, a device for generating a multi-level gradient low light source shown in this embodiment includes a shell with a cavity inside, a tritium gas tube 2 filled with tritium gas and transparent is provided in the cavity, a luminescent coating is coated on the inner wall of the tritium gas tube 2, and the luminescent coating is preferably a fluorescent coating or a phosphorescent coating; a plurality of light emitting holes arranged in an array are provided on the shell, and a plurality of light-transmitting rods 3 arranged in an array and whose lengths increase or decrease in sequence are also provided in the cavity, one end of the light-transmitting rods 3 is arranged in the light emitting holes in a one-to-one correspondence, and the tritium gas tubes are arranged on one side of the longest light-transmitting rod or the shortest light-transmitting rod, that is, all the light-transmitting rods 3 are located on the same side of the tritium gas tube 2; and the light-transmitting rods 3 and the tritium gas tube 2 are at different plane heights of the cavity, so that the two are misaligned in height, that is, there is a height difference.

[0047] Although this embodiment can also generate a low-light source with multiple energy level gradients, its energy level gradient is generally not changeable. When the energy level gradient needs to be changed, the internal light-transmitting rod needs to be replaced, which is relatively costly. In Example 1, only sleeves of different lengths need to be replaced to generate a low-light source with different energy level gradients, and the method of replacing the sleeves is convenient and low-cost.

[0048] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A device for generating a multi-level gradient low light source, characterized in that: It comprises a shell with a cavity inside, wherein a tritium gas tube filled with tritium gas and transparent is arranged in the cavity, and a luminescent coating is coated on the inner wall of the tritium gas tube; a plurality of light emitting holes arranged in an array are arranged in the shell, and a plurality of light-transmitting rods arranged in an array and having the same length are also arranged in the cavity, one end of the light-transmitting rods is arranged in the light emitting holes in a one-to-one correspondence, and the other end of the light-transmitting rods is respectively sleeved with an opaque sleeve, and in the order of arrangement, the length of the sleeve on each of the light-transmitting rods increases in sequence, so that the exposed area on the light-transmitting rod decreases in sequence; the light-transmitting rod and the tritium gas tube are at different plane heights, so that the two are displaced in height.

2. The device for generating a multi-level gradient low light source as claimed in claim 1, characterized in that: The tritium gas pipe is arranged on one side of the cavity, and the light-transmitting rods are arranged on one side of the tritium gas pipe.

3. The device for generating a multi-level gradient low light source as claimed in claim 2, characterized in that: In order of arrangement, starting from the side close to the tritium gas tube, the length of the sleeve on each of the light-transmitting rods increases in sequence.

4. The device for generating a multi-level gradient low light source as claimed in claim 2, characterized in that: In order of arrangement, starting from the side far away from the tritium gas tube, the length of the sleeve on each of the light-transmitting rods increases in sequence.

5. The device for generating a multi-level gradient low light source according to any one of claims 1 to 4, characterized in that: A light uniforming film is arranged in the light exit hole and is located outside the light-transmitting rod.

6. The device for generating a multi-level gradient low light source as claimed in claim 5, characterized in that: The shell body comprises an upper shell and a lower cover which are detachably connected, the rear end of the upper shell is provided with a groove, and the lower cover is covered on the rear end of the groove to form the cavity between the upper shell and the lower cover; the front and rear sides of the groove are respectively provided with a first supporting part and a second supporting part, the tritium gas tube is suspended and fixed between the first supporting part and the second supporting part, the light-transmitting rod is straddled on the first supporting part and the second supporting part, so that the height of the light-transmitting rod in the groove is higher than the height of the tritium gas tube in the groove, and the lower cover presses the sleeve inward.

7. The device for generating a multi-level gradient low light source as claimed in claim 6, characterized in that: The first support portion is provided with a plurality of limit grooves arranged in an arranged manner and corresponding to each other to accommodate the sleeve; the second support portion is provided with a plurality of light emitting holes arranged in an arranged manner, one end of the light-transmitting rod is provided with a light emitting portion perpendicular thereto, and one end of the light emitting portion is arranged in the light emitting hole.

8. The device for generating a multi-level gradient low light source as claimed in claim 7, characterized in that: The tritium gas tube is detachably fixed between the first supporting part and the second supporting part through a fixing piece.

9. The device for generating a multi-level gradient low light source as claimed in claim 8, characterized in that: The tritium gas tube is made of transparent glass; the luminescent coating is a fluorescent coating or a phosphorescent coating; the light-transmitting rod is made of transparent acrylic or transparent glass; and the sleeve is an opaque silicone tube or a rubber tube.

10. A device for generating a multi-level gradient low light source, characterized in that: The invention comprises a shell with a cavity inside, wherein a tritium gas tube filled with tritium gas and transparent is arranged in the cavity, and a luminescent coating is coated on the inner wall of the tritium gas tube; a plurality of light emitting holes arranged in an array are arranged in the shell, and a plurality of light-transmitting rods arranged in an array and whose lengths increase or decrease in sequence are also arranged in the cavity, and one end of the light-transmitting rods is arranged in the light emitting holes in a one-to-one correspondence; and the light-transmitting rods and the tritium gas tube are at different plane heights so that the two are displaced in height.

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