Blue light irradiation device for testing coating strength of lens

Abstract

The utility model relates to a blue light irradiation device for lens coating strength test, which comprises a fixing plate, a driving circuit board and at least one blue light module are arranged on the fixing plate, the blue light module comprises a light source support fixedly mounted on the top surface of the fixing plate, and a light through hole penetrating along the horizontal direction is arranged on the light source support. One side of the light through hole is provided with a blue lamp substrate, the blue lamp substrate is provided with a light source seat, the light source seat is provided with a first lens which is used for converging light rays for the first time, the light through hole is internally provided with a second lens which is opposite to the first lens in position and is used for converging light rays for the second time, and the lens to be detected is arranged at one end, far away from the first lens, of the second lens. The two lenses are used for converging light, the light beam after secondary convergence can be close to parallel light to be incident to the to-be-tested lens, the accuracy of the test result is ensured, the single-side light irradiation mode is used for better fitting the application of the lens in actual products, and the test result can be fit with the actual product service cycle.

Description

TECHNICAL FIELD

[0001] The utility model relates to a blue light irradiation device for lens coating strength test. BACKGROUND

[0002] Blue light is a part of visible light spectrum with shorter wavelength, and its wavelength is about 400nm to 500nm, and it has higher energy, therefore, the blue light irradiation test on the coated lens can evaluate the blocking effect of the lens on the blue light, and ensure that the coating strength and characteristics of the lens do not change under the continuous short wave irradiation. There are many devices for blue light irradiation, such as WEB tunnel UV curing machine, UV point light source, etc., but the lens is irradiated by blue light at multiple angles in the device, which cannot match the lens of the actual assembled projection light machine, and further has the defects of uneven irradiation intensity and uncontrollable irradiation energy, therefore, it is necessary to optimize and improve the existing device to meet the test requirements. SUMMARY

[0003] The utility model makes improvement in view of the above prior art problem, that is, the technical problem to be solved by the utility model is to provide a blue light irradiation device for lens coating strength test.

[0004] In order to realize the above purpose, the utility model adopts the technical scheme of: a blue light irradiation device for lens coating strength test, comprising a fixed plate, the fixed plate is provided with a drive circuit board and at least one blue lamp module, the blue lamp module comprises a light source support fixedly installed on the top surface of the fixed plate, the light source support is provided with a light transmission hole penetrating along the horizontal direction, one side of the light transmission hole is provided with a blue lamp substrate, the blue lamp substrate is installed with a light source seat, the light source seat is provided with a first lens for converging light rays once, the light transmission hole is provided with a second lens opposite to the position of the first lens and used for converging light rays twice, and the tested lens is arranged at the end of the second lens away from the first lens; the blue lamp substrate is electrically connected with the drive circuit board.

[0005] Further, one side of the blue lamp substrate away from the light transmission hole is provided with a heat dissipation assembly.

[0006] Further, the heat dissipation assembly comprises a heat dissipation plate vertically arranged and used for being attached to the blue lamp substrate, a plurality of heat dissipation fins are fixedly arranged on the side surface of the heat dissipation plate away from the blue lamp substrate in parallel, and a cooling fan is horizontally installed on the top surface of the fixed plate and blows air upward below the plurality of heat dissipation fins.

[0007] Further, the heat dissipation plate is driven by the moving piece to move towards the blue lamp substrate and be attached to the blue lamp substrate.

[0008] Further, the moving piece comprises a clamp base on the side of the cooling fan away from the blue lamp substrate, a push-pull type quick clamp is mounted on the top of the clamp base, a push-pull rod of the push-pull type quick clamp is fixed with a push-pull moving plate, four connection bolts in a rectangular distribution are screwed on the push-pull moving plate, and the four connection bolts pass through the plurality of heat dissipation fins and are connected with the heat dissipation plate.

[0009] Further, a support seat is arranged between the clamp base and the cooling fan, four guide through holes in a rectangular distribution are arranged on the upper end of the support seat, the four guide through holes correspond to the positions of the four connection bolts, and the connection bolts slide through the guide through holes.

[0010] Further, the blue lamp substrate is connected with a temperature sensor, the temperature sensor, the cooling fan and the driving circuit board are electrically connected, when the temperature sensor detects that the temperature of the blue lamp substrate reaches a set threshold value, the driving circuit board increases the power supply current of the cooling fan to increase the rotating speed of the cooling fan.

[0011] Further, a fixed seat is fixed on the top surface of the fixed plate directly below the light source support, and the light source support is locked and fixed in an upright manner on the fixed seat; the light source support is provided with a mounting groove in communication with the light transmission hole, and the blue lamp substrate is arranged in the mounting groove.

[0012] Further, the distance between the first lens and the light emitting lamp core of the blue lamp substrate is less than 5mm, and the air gap between the first lens and the second lens is 2-5mm.

[0013] Further, the blue lamp module is a plurality of blue lamp modules arranged side by side, and two adjacent blue lamp modules are placed in a reverse direction by 180°.

[0014] Compared with the prior art, the utility model has the following effects: the utility model discloses reasonable design, uses two lenses to converge light, and the light beam after twice convergence can be close to parallel light and enter the lens to be tested, thereby guaranteeing the accuracy of test results, and the unilateral light irradiation mode is more suitable for the application of the lens in actual products, so that the test result can be consistent with the actual product use cycle. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the embodiment of the utility model;

[0016] Figure 2 It is a top view structure schematic view of the embodiment of the utility model;

[0017] Figure 3 It is a distribution schematic view of the cooling fan and the blue lamp module in the embodiment of the utility model;

[0018] Figure 4 is a three-dimensional structure schematic view of the blue lamp module in the embodiment of the utility model;

[0019] Figure 5 is a sectional structure schematic view of the blue lamp module in the embodiment of the utility model;

[0020] Figure 6 is a three-dimensional structure schematic view of the heat dissipation assembly in the embodiment of the utility model;

[0021] Figure 7 is a front view structure schematic view of the heat dissipation assembly in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] The utility model will be explained further in detail in combination with the drawings and specific embodiments.

[0023] In the description of the utility model, it needs to be understood that the orientation or position relation indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it can not be understood as the limitation of the utility model.

[0024] As Figures 1-7 Indicated, the utility model discloses a blue light irradiation device for lens coating strength test, for the blue light irradiation of projection optical lens, including the horizontal setting rectangular fixed plate 1, the fixed plate 1 top is provided with drive circuit board 2 and at least one blue lamp module 3, the blue lamp module 3 includes the light source support 4 that is vertically fixed installation in the fixed plate 1 top surface, the light source support 4 is provided with the light transmission hole 5 that is through in front and back along the horizontal direction, one side of the light transmission hole 5 is provided with blue lamp substrate 6, the light source seat 7 is installed on the blue lamp substrate 6, the first lens 8 for primary convergent light line is provided on the light source seat 7, and the function of first lens is convergent blue lamp's big divergence angle, and the light is primarily gathered in the appropriate range;Second lens 9 for secondary convergent light line is provided in the light transmission hole 5 and is opposite the position of first lens 8, and the lens 10 to be measured is installed on the light source support 4 and is arranged at the end away from first lens 8 of second lens 9;The blue lamp substrate 6 and drive circuit board 1 are electrically connected. Two lenses are used to converge light, and the light beam after secondary convergence can be close to parallel light and is incident to the lens to be tested, to ensure the accuracy of test result.

[0025] In order to facilitate heat dissipation, the blue lamp substrate 6 is provided with a heat dissipation assembly 11 away from the light transmission hole 5. Specifically, the heat dissipation assembly 11 includes a heat dissipation plate 12 vertically arranged and used to be attached to the blue lamp substrate 6, a plurality of heat dissipation fins 13 are fixed to the side of the heat dissipation plate 12 away from the blue lamp substrate 6, a cooling fan 14 is horizontally installed on the top surface of the fixed plate 1 below the plurality of heat dissipation fins 13, and the cooling fan 14 blows upward to dissipate heat from the heat dissipation fins.

[0026] In this embodiment, the light emitting lamp core of the blue lamp substrate 6 is a blue lamp source with a center wavelength of 450nm.

[0027] In this embodiment, the heat dissipation plate 12 is driven by a moving part to move towards the blue lamp substrate 6 and be attached to the blue lamp substrate 6. In use, after the blue lamp module is installed, the moving part drives the heat dissipation plate to move towards the blue lamp substrate and be attached to the blue lamp substrate.

[0028] Specifically, the moving part includes a clamp base 15 located on the side of the cooling fan 14 away from the blue lamp substrate 6, the clamp base 15 is installed on the top surface of the fixed plate 1, a push-pull quick clamp 16 is installed on the top of the clamp base 15 and arranged in the front and rear directions, the push-pull rod 161 of the push-pull quick clamp 16 extends towards one side of the heat dissipation assembly and is fixed with a vertically arranged push-pull moving plate 17, four connection bolts 18 are screwed on the push-pull moving plate 17 and arranged in a rectangular shape, the axis of the connection bolts 18 is arranged in the front and rear directions, and the four connection bolts 18 pass through the plurality of heat dissipation fins 13 and are connected with the heat dissipation plate 12. In operation, the push-pull moving plate is moved towards the side where the blue lamp module is located by the push-pull quick clamp, and the moving plate drives the heat dissipation plate to move synchronously through the four connection bolts 18, so that the heat dissipation plate is attached to the blue lamp substrate. It should be noted that the push-pull quick clamp is a mature product, and its structure and working principle will not be repeated here.

[0029] In this embodiment, an L-shaped support seat 19 is arranged between the clamp base 15 and the cooling fan 14, the support seat 19 is installed on the top surface of the fixed plate 1, the upper end of the support seat 19 is provided with four rectangularly distributed and front-to-back direction through guide through holes, the four guide through holes correspond to the positions of the four connecting bolts 18, and the connecting bolts 18 are slidably penetrated through the guide through holes. The connecting bolts are supported through the guide through holes on the support seat. In this embodiment, the blue lamp substrate 6 is connected with a temperature sensor, and the temperature sensor is used to monitor the heating temperature of the light source. Further, the temperature sensor, the cooling fan 14 and the driving circuit board 1 are electrically connected, when the temperature sensor detects that the temperature of the blue lamp substrate 6 reaches a set threshold value, the driving circuit board 1 increases the power supply current of the cooling fan 14, increases the power of the cooling fan, so as to increase the rotating speed of the cooling fan, and then improves the heat dissipation effect. Further, the driving circuit board is also electrically connected with an alarm module, when the temperature exceeds the set extreme value, the alarm module alarms and cuts off the power supply of the driving circuit board, so as to ensure that the current test lens is not irradiated by blue light intensity exceeding the specification.

[0030] In this embodiment, the top surface of the fixed plate 1 is fixed with a fixed seat 20 directly below the light source support, and the light source support 4 is vertically locked and fixed on the fixed seat 20; the light source support 4 is provided with a mounting groove 21 communicated with the light hole 5, and the blue lamp substrate 6 is arranged in the mounting groove 21, and the end of the mounting groove away from the light hole is open.

[0031] In this embodiment, the distance between the first lens 8 and the light emitting lamp core of the blue lamp substrate 6 is less than 5mm, and the air gap between the first lens 8 and the second lens 9 is 2-5mm.

[0032] In this embodiment, the light hole is a tapered hole, the hole diameter of the light hole near the to-be-tested lens is large, and the hole diameter of the other end is small. It should be noted that the to-be-tested lens 10 is installed on the lens frame 101, the lens frame 101 is locked and installed on the light source support 4 through the bolt 102, as shown in Figure 4

[0033] In this embodiment, the blue lamp module 3 is multiple, and the multiple blue lamp modules 3 are arranged side by side, and usually the to-be-tested lens is multiple, and the design of multiple blue lamp modules arranged side by side can be used to improve the efficiency of the device and shorten the test time. The two adjacent blue lamp modules cannot be placed in the same direction to avoid the light sources of the two being superimposed due to the principle of light interference, which affects the uneven light irradiation of the to-be-tested lens film strength. Usually, the two adjacent blue lamp modules are placed in opposite directions by 180°.

[0034] ​In this embodiment, considering the reflection characteristics of different components, for example, the reflectivity of the material of the fixed plate, the fixed seat and the like as metal is relatively high and can affect the to-be-tested lens, therefore, the fixed seat and the fixed plate are plastic POM, replacing the traditional metal high reflectivity, so that the experimental results are more in line with the actual use.

[0035] In this embodiment, the driving circuit board 1 is a PCBA with MCU control and liquid crystal display, used for displaying current power supply voltage, current, temperature and the like information, and the output power of the blue lamp module can be adjusted through the adjustable potentiometer, thereby better controlling the test time of the lens film layer.

[0036] In this embodiment, when in use, the driving circuit board 1 is powered on, the related liquid crystal module display is started and the cooling fan 14 is started synchronously, the driving circuit board 1 synchronously lights up the blue lamp substrate 6, the blue light reaches the to-be-tested lens 10 through the first lens 8 and the second lens 9, the blue light after secondary convergence is closer to the parallel light incident on the to-be-tested lens, and the accuracy of the to-be-tested lens test is ensured. In addition, the temperature sensor is connected with the blue lamp substrate 6, the temperature is monitored, when the temperature reaches a threshold temperature, the power supply current of the cooling fan 14 is increased, so that the fan rotating speed is increased, and the purpose of cooling and heat dissipation is achieved.

[0037] If the utility model discloses or involves the parts or structural members fixedly connected with each other, then, except for another declaration, fixed connection can be understood as: detachably fixed connection (for example, using bolt or screw connection), and also can be understood as: non-detachable fixed connection (for example, riveting, welding), of course, the fixed connection with each other can also be replaced by integral structure (for example, using casting process integral forming manufacturing) (obviously, except for integral forming process).

[0038] In addition, the terms used to represent the position relationship or shape in any of the technical solutions disclosed in the utility model above include the state or shape similar, similar or close to the same, except for another declaration.

[0039] Any component provided by the utility model can be assembled by a plurality of separate components, or can be a separate component manufactured by integral forming process.

[0040] Finally, it should be explained that: the above embodiments 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 preferred embodiments, those skilled in the art should understand that: the specific embodiments of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solutions of the utility model, they should all be covered in the technical solution range of the utility model claimed.

Claims

1. A blue light irradiation device for testing the strength of lens coatings, characterized in that: The device includes a mounting plate, on which a driving circuit board and at least one blue lamp module are mounted. The blue lamp module includes a light source bracket fixedly mounted on the top surface of the mounting plate. The light source bracket has a horizontally penetrating light-passing hole. A blue lamp substrate is mounted on one side of the light-passing hole. A light source holder is mounted on the blue lamp substrate. A first lens for primary light focusing is mounted on the light source holder. A second lens for secondary light focusing is disposed within the light-passing hole, directly opposite the first lens. A lens under test is disposed at the end of the second lens away from the first lens. The blue lamp substrate is electrically connected to the driving circuit board.

2. The blue light irradiation device for testing the strength of lens coatings according to claim 1, characterized in that: A heat dissipation component is provided on the side of the blue light substrate away from the light-transmitting hole.

3. The blue light irradiation device for testing the strength of lens coatings according to claim 2, characterized in that: The heat dissipation assembly includes a heat dissipation plate that is vertically arranged and used to be attached to the blue light substrate. Multiple heat dissipation fins are fixed on one side of the heat dissipation plate away from the blue light substrate. A cooling fan that is horizontally installed on the top surface of the fixed plate and blows air upwards is arranged directly below the multiple heat dissipation fins.

4. A blue light irradiation device for testing the strength of lens coatings according to claim 3, characterized in that: The heat sink is driven by a moving component to move toward the blue light substrate and to fit against the blue light substrate.

5. A blue light irradiation device for testing the strength of lens coatings according to claim 4, characterized in that: The movable component includes a clamp base located on the side of the cooling fan away from the blue light substrate. A push-pull quick clamp is installed on the top of the clamp base. A push-pull moving plate is fixed to the push-pull rod of the push-pull quick clamp. Four rectangular connecting bolts are screwed onto the push-pull moving plate. The four connecting bolts pass through multiple heat dissipation fins and are connected to the heat dissipation plate.

6. A blue light irradiation device for testing the strength of lens coatings according to claim 5, characterized in that: A support base is provided between the clamp base and the cooling fan. The upper end of the support base has four rectangular guide holes, which correspond to the positions of four connecting bolts. The connecting bolts slide through the guide holes.

7. A blue light irradiation device for testing the strength of lens coatings according to claim 3, characterized in that: The blue LED substrate is connected to a temperature sensor. The temperature sensor, the cooling fan, and the drive circuit board are electrically connected. When the temperature sensor detects that the temperature of the blue LED substrate has reached a set threshold, the drive circuit board increases the power supply current to the cooling fan to increase the fan speed.

8. A blue light irradiation device for testing the strength of lens coatings according to claim 1, characterized in that: A fixing base is fixed to the top surface of the fixing plate directly below the light source bracket, and the light source bracket is vertically locked and fixed to the fixing base; the light source bracket is provided with a mounting groove that communicates with the light transmission hole, and the blue lamp substrate is placed in the mounting groove.

9. A blue light irradiation device for testing the strength of lens coatings according to claim 1, characterized in that: The distance between the first lens and the light-emitting core of the blue lamp substrate is less than 5mm, and the air gap between the first lens and the second lens is 2-5mm.

10. A blue light irradiation device for testing the strength of lens coatings according to claim 1, characterized in that: There are multiple blue light modules, which are arranged side by side, with adjacent blue light modules placed at 180° opposite each other.

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