LED light source power detection device

Abstract

The utility model discloses an LED light source power detection device which comprises a lens barrel, an LED light source is installed at one end of the lens barrel, a light-transmitting piece is installed at the other end of the lens barrel, a light-uniformizing element and a lens element are further installed in the lens barrel, the light-uniformizing element is located at the end close to the LED light source, the lens element is arranged between the light-uniformizing element and the light-transmitting piece, and the light-transmitting piece is arranged between the light-uniformizing element and the light-transmitting piece. The LED light source and the lens element are coaxially arranged; the lens barrel is provided with a photosensitive component, and the photosensitive component is located at the end, close to the LED light source, of the inner wall of the lens barrel. The photosensitive part is arranged on the inner wall of the lens cone, real-time power detection can be carried out on the LED light source in use, the abnormal change of the power of the LED light source can be detected through voltage fluctuation on the photosensitive part, and the corresponding value of the power of the LED light source can be obtained by monitoring the fluctuation range of the voltage; when the detected power value is higher or lower than the set value, the circuit board can automatically adjust the power according to the set value.

Description

TECHNICAL FIELD

[0001] The utility model relates to eye protection instrument technical field, especially a kind of LED light source power detection device. BACKGROUND

[0002] With the continuous rapid development of electronic information technology, mobile phones, computers and other electronic products are becoming more and more popular, and more and more young children are addicted to these electronic products, leading to a decline in the eyesight of young children. LED light source eye protection instrument is one of the instruments that can effectively relieve eye fatigue, and has great significance for improving eye health and vision correction.

[0003] The existing LED light source eye protection instrument is an eye care electronic product using LED light source technology, which uses suitable light waves for eye massage to improve blood circulation and promote eye health. However, the traditional LED light source eye protection instrument has the following problems: the existing LED light source eye protection instrument cannot detect the real-time power of the LED light source in use, and the power of the LED light source may decrease or be abnormal after the LED light source eye protection instrument is used for a period of time. The lack of effect of low-power LED light source on the eyes, and the high power will affect the treatment effect on the eyes. SUMMARY

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a kind of LED light source power detection device, to solve the problem that the existing LED light source eye protection instrument cannot detect the real-time power of the LED light source in use.

[0005] The technical scheme adopted by the utility model to solve its technical problems is: a kind of LED light source power detection device, including lens barrel, the one end of lens barrel is equipped with LED light source, the other end of lens barrel is equipped with light transmission sheet, the lens barrel is also equipped with light uniforming element and lens element, the light uniforming element is located at the one end close to LED light source, the lens element is located between light uniforming element and light transmission sheet, and the LED light source and lens element are coaxially arranged;The lens barrel is equipped with photosensitive component, and the photosensitive component is located at the one end close to LED light source on the inner wall of lens barrel.

[0006] As a further improvement of the utility model: the photosensitive component is a PD photosensitive resistor.

[0007] As a further improvement of the utility model: the lens element includes first lens, second lens and third lens, and the first lens, second lens and third lens are sequentially arranged between light uniforming element and light transmission sheet.

[0008] As a further improvement of the utility model: it further includes eye protection instrument shell, and the lens barrel is installed in the eye protection instrument shell.

[0009] As a further improvement of the utility model: the inside of the eye protection instrument shell is equipped with a control chamber away from the one end of the lens barrel, the inside of the control chamber is equipped with a circuit board, the circuit board is electrically connected with the LED light source and the light sensitive component respectively.

[0010] As a further improvement of the utility model: the barrel wall of the lens barrel is radially provided with an installation through slot, the opening end of the installation through slot is located at the lens barrel end corresponding to the LED light source, the tail end of the installation through slot is located at the lens barrel wall corresponding to the LED light source and the light homogenizing element, the tail end of the installation through slot is formed into a detection slot for installing the light sensitive component by penetrating towards the lens barrel interior, and the light sensitive component is fixed by extending into the lens barrel through the detection slot.

[0011] As a further improvement of the utility model: the circuit board is connected with a flexible band, the other end of the flexible band extends into the installation through slot and is electrically connected with the light sensitive component.

[0012] As a further improvement of the utility model: the circuit board is connected with a management background, and the power of the LED light source can be recorded in real time.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a light sensitive component is arranged on the inner wall of the lens barrel, and the power of the LED light source in use can be detected in real time, the abnormal change of the power of the LED light source can be detected through the voltage fluctuation on the light sensitive component, the corresponding value of the power of the LED light source can be obtained by monitoring the fluctuation range of the voltage, and the circuit board can automatically adjust the power according to the set value when the detected power value is higher or lower than the set value. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the internal structure schematic diagram of the utility model.

[0016] Figure 2 It is the partial structure of the place A in Figure 1 The enlarged schematic diagram.

[0017] Figure 3 It is the overall structure schematic diagram of the utility model.

[0018] Fig. 1, eye protection instrument shell;2, lens barrel;3, LED light source;4, light transmission sheet;5, light homogenizing element;6, first lens;7, second lens;8, light sensitive component;9, installation through slot;10, detection slot;11, flexible band;12, control chamber;13, circuit board;14, third lens. DETAILED DESCRIPTION

[0019] In this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. The present application will be further described by way of example with reference to the accompanying drawings.

[0020] Referring to Figures 1-3 The LED light source power detection device comprises a lens barrel 2, an LED light source 3 is installed at one end of the lens barrel 2, a light transmission sheet 4 is installed at the other end of the lens barrel 2, a light homogenizing element 5 and a lens element are further installed in the lens barrel 2, the light homogenizing element 5 is located at the end close to the LED light source 3, the lens element is arranged between the light homogenizing element 5 and the light transmission sheet 4, and the LED light source 3 and the lens element are coaxially arranged; a photosensitive component 8 is installed on the lens barrel 2, and the photosensitive component 8 is located at the end close to the LED light source 3 on the inner wall of the lens barrel 2.

[0021] By arranging the photosensitive component 8 on the inner wall of the lens barrel 2, the real-time power detection of the LED light source 3 in use can be realized, the abnormal change of the power of the LED light source 3 can be detected through the voltage fluctuation on the photosensitive component 8, and the corresponding value of the power of the LED light source 3 can be obtained by monitoring the fluctuation range of the voltage; when the detected power value is higher or lower than the set value, the circuit board 13 can automatically adjust the power according to the set value.

[0022] By arranging the LED light source 3, the light homogenizing element 5 and the lens element, the light beam output from the LED light source 3 forms a uniform light spot after passing through the light homogenizing element 5, and then converges the light rays to form a parallel light beam through the lens element, so that the more dangerous laser light source is not needed, and the safety is relatively high.

[0023] Further, the photosensitive component 8 is a PD photosensitive resistor.

[0024] Further, the lens element comprises a first lens 6, a second lens 7 and a third lens 14, and the first lens 6, the second lens 7 and the third lens 14 are sequentially arranged between the light homogenizing element 5 and the light transmission sheet 4. The first lens 6 is used for converging the light beam of the LED light source 3, a certain angle of collimation is used for adjusting the irradiation range of the light beam; the second lens 7 is used for further adjusting the collimation angle of the light beam out of the first lens 6, and adjusting the irradiation range of the light beam; the third lens 14 is used for further adjusting the collimation angle of the light beam out of the second lens 7, and forming a parallel light beam; the parallel light beam is formed through three times of light beam angle adjustment instead of one-time collimation, and the uniformity of the light spot is improved.

[0025] Further, the eye protection instrument shell 1 is further provided with the lens barrel 2.

[0026] Further, the control chamber 12 is arranged at one end of the lens barrel 2, and the circuit board 13 is arranged in the control chamber 12.

[0027] Further, the mounting through groove 9 is arranged in the lens barrel 2 in a radial direction, the opening end of the mounting through groove 9 is located at the end of the lens barrel 2 corresponding to the LED light source 3, the end of the mounting through groove 9 is located at the lens barrel 2 wall corresponding to the LED light source 3 and the light homogenizing element 5, and the end of the mounting through groove 9 is formed into the detection groove 10 for mounting the photosensitive component 8 in the lens barrel 2.

[0028] Further, the flexible band 11 is connected with the circuit board 13, and the other end of the flexible band 11 is arranged in the mounting through groove 9 and is electrically connected with the photosensitive component 8.

[0029] Further, the circuit board 13 is connected with the management background, and the power of the LED light source can be recorded in real time.

[0030] The working principle of the utility model is as follows:

[0031] When in use, the light beam output from the LED light source forms a uniform light spot after passing through the light homogenizing element, and then forms a parallel light beam after passing through the first lens and the second lens, so that a more dangerous laser light source is not needed, and safety is improved.

[0032] The photosensitive component arranged on the inner wall of the lens barrel can detect the abnormal change of the power of the LED light source through voltage fluctuation, the corresponding value of the power of the LED light source can be obtained by monitoring the fluctuation range of the voltage, and the circuit board can automatically adjust the power according to the set value when the detected power value is higher or lower than the set value.

[0033] The circuit board can transmit the detected power value to the management background through 4G, the management background can check the real-time power, and the management background can give an instruction to the circuit board, so that the power size can be adjusted.

[0034] The main function of the utility model is as follows:

[0035] The utility model discloses a light sensitive component is arranged on the inner wall of the lens barrel, can carry out real -time power detection to the LED light source in use, and the abnormal change of LED light source power can be detected through the voltage fluctuation on the light sensitive component, and the corresponding numerical value of LED light source power can be obtained through the fluctuation range of the voltage of monitoring, when the power value detected is higher or lower than the set value, the circuit board can automatically adjust the power according to the set value.

[0036] In the description of the utility model, it is understood that the orientation or position relation of the terms "upper end surface", "lower end surface", "top", "bottom", "left", "right" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of the description of the utility model, and therefore cannot be understood as a limitation on the actual use direction of the utility model.

[0037] The above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent substitution for part or all of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the utility model examples, and they should all be covered in the scope of the claims and the description of the utility model.

Claims

1. An LED light source power detection device, characterized in that: The lens includes a lens barrel (2), one end of which is equipped with an LED light source (3), and the other end of which is equipped with a light-transmitting sheet (4). A light-diffusing element (5) and a lens element are also installed inside the lens barrel (2). The light-diffusing element (5) is located at the end close to the LED light source (3), and the lens element is located between the light-diffusing element (5) and the light-transmitting sheet (4). The LED light source (3) and the lens element are coaxially arranged. A photosensitive component (8) is installed on the lens barrel (2). The photosensitive component (8) is located on the inner wall of the lens barrel (2) at the end close to the LED light source (3).

2. The LED light source power detection device according to claim 1, characterized in that: The photosensitive component (8) is a PD photoresistor.

3. The LED light source power detection device according to claim 1, characterized in that: The lens element includes a first lens (6), a second lens (7) and a third lens (14), wherein the first lens (6), the second lens (7) and the third lens are sequentially disposed between the light-diffusing element (5) and the light-transmitting sheet (4).

4. The LED light source power detection device according to claim 1, characterized in that: It also includes an eye care device housing (1), and the lens tube (2) is installed inside the eye care device housing (1).

5. The LED light source power detection device according to claim 4, characterized in that: The eye protection device housing (1) has a control chamber (12) located at the end away from the lens tube (2). The control chamber (12) has a circuit board (13) located inside. The circuit board (13) is electrically connected to the LED light source (3) and the photosensitive component (8).

6. The LED light source power detection device according to claim 5, characterized in that: The cylindrical wall of the lens tube (2) is provided with a mounting groove (9) in the radial direction. The opening end of the mounting groove (9) is located at the end of the lens tube (2) corresponding to the LED light source (3). The end of the mounting groove (9) is located on the cylindrical wall of the lens tube (2) between the LED light source (3) and the light-diffusing element (5). The end of the mounting groove (9) penetrates into the lens tube (2) to form a detection groove (10) for mounting the photosensitive component (8). The photosensitive component (8) is inserted into the lens tube (2) through the detection groove (10) and fixed.

7. The LED light source power detection device according to claim 6, characterized in that: The circuit board (13) is connected to a flexible strip (11), the other end of which extends into the mounting slot (9) and is electrically connected to the photosensitive component (8).

8. The LED light source power detection device according to claim 5, characterized in that: The circuit board (13) is connected to a management backend.

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