Optical system for forming uniform annular light spots

Abstract

The invention discloses an optical system for forming uniform annular light spots, and relates to the technical field of optical systems, the optical system comprises a frame body, a connecting line is electrically mounted at a concave groove in the middle of the frame body, and the connecting line is electrically connected with the connecting end of an external control host. According to the optical system for forming the uniform annular light spots, the light spot control mechanism is arranged, the distance between a light source part and a lens on a fixing plate is changed through an adjusting part, and a control column fixed to the inner side of a center ring slides on a climbing groove in the surface of a supporting column; the control column descends along with the track of the climbing groove and rotates with the supporting column as the center, and the shading plate is unfolded or contracted synchronously, so that the size and position of light spots are adjusted, the LD is shielded or opened synchronously, uniform annular light spots of different types or under different conditions are formed, and the working efficiency is improved. The process efficiency of the optical system is improved.

Description

Technical Field

[0001] The invention relates to the technical field of optical systems, and in particular to an optical system for forming a uniform annular light spot. Background Art

[0002] There are few methods on the market that use optical systems to form a uniform annular light spot. This application is mainly used for curing glue on the outer frames of mobile phone screens, computer screens, and TV screens (curing is divided into two categories, light curing and thermal curing). The center area of ​​the screen does not need to be irradiated. The current main technical solution is to arrange the LED light sources into a ring and then focus the light through a ring-shaped glass lens.

[0003] The reference patent name is: A method for designing an optical system for generating uniform ring light (patent publication number: CN115685537A, patent publication date: 2023-02-03). The optical system involved is formed by a combination of a conical mirror and a cylindrical mirror. A beam of circular parallel light is incident on the conical mirror, and the light emitted from the conical mirror is reflected on the cylindrical mirror. The concave and convex areas on the cylindrical mirror divide the light beam and then stack them at the same time to converge at the focal plane to form a focused ring light of a certain width. The conical mirror is formed by a cone line rotating around the optical axis Z; the concave and convex areas on the cylindrical mirror are curved surfaces formed by a plurality of alternating concave and convex parabolas rotating around the optical axis Z. The more concave and convex areas on the cylindrical mirror, the higher the uniformity of the ring light on the focal plane.

[0004] Based on the description in the above-mentioned documents, the curing of the existing annular frame glue has been baked, heated or illuminated together with the product for a long time. First, there is a serious waste of energy. Second, the useless light and heat will have a negative impact on the product. Third, it affects the process efficiency. In addition, when curing the glue of different products, it is necessary to replace the equipment with different parameters to realize the formation operation of the light spot, and it is also necessary to form a uniform light spot, which makes the use of the optical system relatively simple. To this end, the present invention provides an optical system for forming a uniform annular light spot. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an optical system for forming a uniform annular light spot, which solves the problem of curing of the existing annular outer frame glue. Previously, the system was baked, heated or illuminated together with the product for a long time. First, energy was seriously wasted. Second, useless light and heat would have a negative impact on the product. Third, the process efficiency was affected. In addition, when curing glue for different products, it is necessary to replace equipment with different parameters to realize the operation of forming the light spot, and it is also necessary to form a uniform light spot, which makes the use of the optical system relatively single.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an optical system for forming a uniform annular light spot, comprising a frame, and a connecting wire is electrically installed at a concave groove in the middle of the frame, and the connecting wire is electrically connected to a connecting end of an external control host, and a light spot control mechanism is arranged inside the frame to control and form a uniform annular light spot, and the light spot control mechanism comprises:

[0007] The light source part is arranged inside the frame and generates light to implement the operation of curing the glue on the surface of the product;

[0008] The air cooling unit is arranged inside the frame and above the light source unit, and is used to realize heat dissipation operation of the light source unit;

[0009] The adjustment part is provided with a fixing plate below the light source part and realizes vertical movement control through a driving member, and a concave groove opposite to the light source part is opened on the fixing plate, and lenses are installed equidistantly inside the concave groove to realize refraction of the light source, and a shading part is provided between the opposite sides of the fixing plate and the diagonal part of the light source part to realize control operation of part of the light source.

[0010] Preferably, the light source unit includes a circuit board fixedly mounted inside the frame, and the circuit board is connected to the electrical end of the frame, and a plurality of LDs are equidistantly arranged at the bottom of the circuit board in an annular array, and the annular array is arranged using two rows of identical LDs.

[0011] Preferably, the air cooling part includes a connecting plate fixedly installed inside the frame, and a plurality of air cooling components are equidistantly installed on the bottom of the connecting plate to realize wind power generation, and a vent is provided on the top of the connecting plate and on each air cooling component, and an air inlet groove is provided on the top of the frame and directly above the connecting plate, and an air outlet groove is provided on the side of the frame and at a horizontal position of the circuit board.

[0012] Preferably, the air cooling assembly includes a mounting frame installed at the bottom of the connecting plate, and a placement groove is opened through the surface of the mounting frame. A motor is installed inside the placement groove and drives the fan blades to realize the air flow and blowing operation.

[0013] Preferably, the driving member comprises:

[0014] An upper fixed plate is installed on the side of the circuit board. A motor is installed on the top of the upper fixed plate, and a threaded rod is fixed to the output end of the motor and extends through the bottom of the upper fixed plate.

[0015] The lower fixing plate is connected and installed on the side of the fixed plate and is located below the upper fixing plate, and the threaded rod is threadedly connected to the lower fixing plate, and the surface of the upper fixing plate is symmetrically installed with a through rod, and the through rod penetrates the lower fixing plate and can slide relative to the lower fixing plate;

[0016] The sides of the circuit board and the fixing plate and the symmetrical sides of the upper fixing plate and the lower fixing plate are provided with sliding components which limit the lower fixing plate to move only vertically.

[0017] Preferably, the sliding assembly comprises:

[0018] The upper connecting block is installed on the other side of the circuit board, and a through groove is opened on the surface of the upper connecting block;

[0019] The lower connecting block is installed on the other side of the fixed plate. A sliding bar is installed on the top of the lower connecting block. The sliding bar penetrates the through groove and can slide relatively.

[0020] Preferably, the shading portion includes:

[0021] A first light shielding plate is located on the bottom surface of the circuit board and is provided with a sleeve between the LDs, and the first light shielding plate is fixedly mounted on the surface of the sleeve;

[0022] The second shading plate has a collar fixedly mounted on its surface, and the collar is sleeved on the surface of the sleeve and can rotate relatively, and the side surface of the second shading plate slides in an arc shape on the bottom surface of the first shading plate with the sleeve as the center through a rolling element;

[0023] The third shading plate has a same sleeve fixedly mounted on its surface, and the sleeve is sleeved on the surface of the sleeve and can rotate relatively, and the side surface of the third shading plate also slides in an arc shape on the bottom surface of the second shading plate with the sleeve as the center through a rolling element;

[0024] The fourth shading plate has a rotating member on its surface that rotates inside the sleeve, and the side of the fourth shading plate also slides in an arc shape on the bottom surface of the third shading plate with the sleeve as the center through a rolling member, and a baffle is fixedly installed on one side of the fourth shading plate.

[0025] Preferably, the rolling element comprises:

[0026] A square block is fixedly mounted on the sides of the second light shielding plate, the third light shielding plate and the fourth light shielding plate, and a support shaft is rotatably mounted on the surface of the square block, and a roller is fixedly mounted on the surface of the support shaft;

[0027] The arc groove is located on the bottom surfaces of the first light shielding plate, the second light shielding plate and the third light shielding plate, and the roller is located inside the arc groove to perform rolling operation.

[0028] Preferably, the rotating part includes a center ring, and the fourth shading plate is fixedly mounted on the surface of the center ring, and the upper part of the center ring surface is fixed to the inner wall of the sleeve through a rotating bearing, and the interior of the center ring is connected to a long strip through a control component, and the extending end of the long strip is fixed to the inner side surface of the fixed plate.

[0029] Preferably, the control component comprises:

[0030] A control column, fixedly mounted on the inner side of the center ring;

[0031] The support column is fixedly installed on the top of the long board, and a spiral climbing groove is opened on the surface of the support column. The control column slides inside the climbing groove, and the lifting of the control column realizes the synchronous rotation of the control column and the center ring under the limit of the climbing groove.

[0032] The present invention provides an optical system for forming a uniform annular light spot. Compared with the prior art, it has the following beneficial effects:

[0033] 1. The optical system for forming a uniform annular light spot is provided with a light spot control mechanism, and an adjustment part is used to change the distance between the light source part and the lens on the fixed plate. The control column fixed on the inner side of the center ring slides on the climbing groove on the surface of the support column. The control column descends along the trajectory of the climbing groove and rotates around the support column, and the shading plate is simultaneously expanded or contracted. In this way, not only the adjustment operation of the light spot size and position is completed, but also the shielding or opening of the LD is completed simultaneously, so as to realize the formation operation of uniform annular light spots under different types or different conditions, thereby improving the process efficiency of the optical system.

[0034] 2. The optical system that forms a uniform annular light spot is provided with an air cooling part. The air cooling component is started by controlling the command to allow air to enter the frame from the air inlet slot, and then the hot gas is discharged to the outside through the air outlet slot after the LD is cooled. In this way, the optical system is cooled, thereby effectively improving the safety of the optical system and extending the service life of the optical system.

[0035] 3. The optical system for forming a uniform annular light spot is provided with a shading portion. The control column is controlled to descend along the trajectory of the climbing groove and rotate around the support column. The control column and the center ring are synchronously rotated to rotate the fourth shading plate. When the fourth shading plate rotates, the connected square block and the roller roll in the arc groove on the bottom surface of the third shading plate until the tail end of the arc groove, thereby completing the control operation of the number of shading plates used according to the set requirements, thereby achieving the improvement of the uniformity of the light spot and the control operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an external three-dimensional structure diagram of the present invention from a first viewing angle;

[0037] Figure 2 is an external three-dimensional structural diagram of the present invention from a second viewing angle;

[0038] Figure 3 It is a three-dimensional structural diagram of the connection plate of the present invention;

[0039] Figure 4It is a three-dimensional structural diagram of the air-cooling assembly of the present invention;

[0040] Figure 5 It is a three-dimensional structural diagram of the circuit board of the present invention;

[0041] Figure 6 For the present invention Figure 5 A magnified view of the local structure at center A;

[0042] Figure 7 It is a three-dimensional structural diagram of the adjustment part of the present invention;

[0043] Figure 8 It is a partial three-dimensional structural diagram of the adjustment part of the present invention;

[0044] Fig. 9 It is a three-dimensional structural diagram of the driving member of the present invention;

[0045] Fig.10 is a three-dimensional structural diagram of the lens of the present invention;

[0046] Fig.11 It is a top three-dimensional structural diagram of the light shielding portion of the present invention;

[0047] Fig.12 It is a bottom three-dimensional structural diagram of the light shielding portion of the present invention;

[0048] Fig.13 For the present invention Fig.12 A magnified view of the local structure at B in the middle;

[0049] Fig.14 It is a cross-sectional structural diagram of the sleeve of the present invention;

[0050] Fig.15 This is a three-dimensional structural exploded view of the light shielding portion of the present invention;

[0051] Fig.16 It is a three-dimensional structural cross-sectional view of the control assembly of the present invention;

[0052] Fig.17 It is a three-dimensional structural diagram of the light source part of the present invention;

[0053] Fig.18 It is a top view of the distribution of LD particles of the present invention;

[0054] Fig.19 This is the LD layout diagram at the corner of the present invention.

[0055] In the figure:

[0056] 1-frame;

[0057] 2-Connecting wire;

[0058] 3-light source part, 31-circuit board, 32-LD;

[0059] 4-air cooling part, 41-connection plate, 42-air cooling assembly, 421-installation frame, 422-placement slot, 423-fan blade, 43-air inlet slot, 44-air outlet slot;

[0060] 5-adjusting part, 51-fixing plate, 52-concave groove, 53-lens;

[0061] 6-driving member, 61-upper fixed plate, 62-motor, 63-threaded rod, 64-lower fixed plate, 65-through rod, 66-sliding assembly, 661-upper connecting block, 662-through slot, 663-lower connecting block, 664-sliding bar;

[0062] 7-shading part, 71-first shading plate, 72-sleeve, 73-second shading plate, 74-ring, 75-rolling member, 751-square block, 752-support shaft, 753-roller, 754-arc groove, 76-third shading plate, 77-fourth shading plate, 78-rotating member, 781-center ring, 782-long strip plate, 79-baffle;

[0063] 8-control assembly, 81-control column, 82-support column, 83-climbing trough. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] See also Figure 1-Figure 19 , the present invention provides two technical solutions:

[0066] Embodiment 1: An optical system for forming a uniform annular light spot, comprising a frame 1, wherein a connecting wire 2 is electrically installed at a concave groove in the middle of the frame 1, and the connecting wire 2 is electrically connected to a connecting end of an external control host, and a light spot control mechanism is arranged inside the frame 1 to control and form a uniform annular light spot, and the light spot control mechanism comprises:

[0067] The light source unit 3 is arranged inside the frame 1 and generates light to implement the operation of curing the glue on the surface of the product;

[0068] The air cooling unit 4 is arranged inside the frame 1 and above the light source unit 3, and is used to realize the heat dissipation operation of the light source unit 3;

[0069] The adjusting portion 5 is provided with a fixing plate 51 below the light source portion 3 and is controlled to move vertically by a driving member 6, and a concave groove 52 opposite to the light source portion 3 is provided on the fixing plate 51, and lenses 53 are installed equidistantly inside the concave groove 52 to realize the refraction of the light source, and a shading portion 7 is provided between the fixing plate 51 and the opposite sides of the diagonal portion of the light source portion 3 to realize the control operation of part of the light source.

[0070] By providing a light spot control mechanism, the adjustment part 5 is used to realize the change of the distance between the light source part 3 and the lens 53 on the fixed plate 51. The control column 81 fixed on the inner side of the center ring 781 slides on the climbing groove 83 on the surface of the support column 82. The control column 81 descends along the trajectory of the climbing groove 83 and rotates around the support column 82, and simultaneously realizes the expansion or contraction of the shading plate. In this way, not only the adjustment operation of the light spot size and position is completed, but also the shielding or opening of the LD32 is completed simultaneously, and the formation operation of uniform annular light spots under different types or under different conditions is realized, thereby improving the process efficiency of the optical system.

[0071] See also Fig.17 In the embodiment of the present invention, the light source unit 3 includes a circuit board 31 fixedly installed inside the frame 1, and the circuit board 31 is connected to the electrical end of the frame 1, and a plurality of LDs 32 are equidistantly arranged at the bottom of the circuit board 31 to form a circular array, and the circular array is arranged using two rows of identical LDs 32.

[0072] See also Figure 18-19 The LD arrangement at the corners is non-uniform, with 1 to 4 LD lamp beads protruding at the corners to form fill light.

[0073] Among them, a corresponding through groove is opened at the bottom of the frame 1 and directly below the circuit board 31, and the through groove facilitates the extension operation of the uniform annular light spot. LD32 is a high-energy laser diode, which generates light to form a uniform annular light spot, which is irradiated on the glue to quickly solidify the black glue.

[0074] See also Figure 3-Figure 4 In the embodiment of the present invention, the air cooling part 4 includes a connecting plate 41 fixedly installed inside the frame 1, and a plurality of air cooling components 42 are equidistantly installed at the bottom of the connecting plate 41 to realize wind power generation, and a vent is provided at the top of the connecting plate 41 and on each air cooling component 42, and an air inlet groove 43 is provided at the top of the frame 1 and directly above the connecting plate 41, and an air outlet groove 44 is provided at the side of the frame 1 and at a horizontal position of the circuit board 31.

[0075] See also Figure 4In the embodiment of the present invention, the air cooling component 42 includes a mounting frame 421 mounted on the bottom of the connecting plate 41, and a placement groove 422 is opened through the surface of the mounting frame 421. A motor is installed inside the placement groove 422 and drives the fan blades 423 to realize the air flow and blowing operation.

[0076] By providing an air cooling unit 4, the air cooling component 42 is started by controlling the command to allow air to enter the frame 1 from the air inlet slot 43, and then the hot gas is discharged to the outside through the air outlet slot 44 after the LD32 is cooled, so as to perform heat dissipation operation on the optical system, thereby effectively improving the safety of the optical system and extending the service life of the optical system.

[0077] See also Fig. 9 In the embodiment of the present invention, the driving member 6 comprises:

[0078] The upper fixed plate 61 is installed on the side of the circuit board 31. A motor 62 is installed on the top of the upper fixed plate 61. A threaded rod 63 is fixed to the output end of the motor 62 and extends to the bottom of the upper fixed plate 61.

[0079] The lower fixing plate 64 is connected and installed on the side of the fixing plate 51 and is located below the upper fixing plate 61, and the threaded rod 63 is threadedly connected to the lower fixing plate 64, and the surface of the upper fixing plate 61 is symmetrically installed with a through rod 65, and the through rod 65 penetrates the lower fixing plate 64 and can slide relative to the lower fixing plate 64;

[0080] A sliding assembly 66 is provided on the side of the circuit board 31 and the fixing plate 51 and on the symmetrical side of the upper fixing plate 61 and the lower fixing plate 64 to limit the lower fixing plate 64 to move only vertically.

[0081] See also Figure 5-Figure 6 In the embodiment of the present invention, the sliding assembly 66 includes:

[0082] The upper connecting block 661 is mounted on the other side of the circuit board 31, and a through groove 662 is formed on the surface of the upper connecting block 661;

[0083] The lower connecting block 663 is installed on the other side of the fixing plate 51 . A sliding bar 664 is installed on the top of the lower connecting block 663 . The sliding bar 664 penetrates the through groove 662 and can slide relative to each other.

[0084] See also Figure 10-Figure 16 In the embodiment of the present invention, the light shielding portion 7 includes:

[0085] A first light shielding plate 71 is located on the bottom surface of the circuit board 31 and is provided with a sleeve 72 between the LD 32 , and the first light shielding plate 71 is fixedly mounted on the surface of the sleeve 72 ;

[0086] The second light shielding plate 73 has a collar 74 fixedly mounted on its surface, and the collar 74 is sleeved on the surface of the sleeve 72 and can rotate relatively, and the side surface of the second light shielding plate 73 slides in an arc shape on the bottom surface of the first light shielding plate 71 with the sleeve 72 as the center through a rolling member 75;

[0087] The third light shielding plate 76 has a same collar 74 fixedly mounted on its surface, and the collar 74 is sleeved on the surface of the sleeve 72 and can rotate relatively, and the side surface of the third light shielding plate 76 also slides in an arc shape on the bottom surface of the second light shielding plate 73 with the sleeve 72 as the center through a rolling member 75;

[0088] The fourth light shielding plate 77 has a rotating member 78 on its surface which rotates inside the sleeve 72, and the side of the fourth light shielding plate 77 also slides in an arc shape on the bottom surface of the third light shielding plate 76 with the sleeve 72 as the center through a rolling member 75, and a baffle 79 is fixedly installed on one side of the fourth light shielding plate 77.

[0089] By setting the shading part 7, the control column 81 is controlled to descend along the trajectory of the climbing groove 83 and to rotate around the support column 82. The control column 81 and the center ring 781 rotate synchronously to rotate the fourth shading plate 77. When the fourth shading plate 77 rotates, the connected square block 751 and the roller 753 roll in the arc groove 754 on the bottom surface of the third shading plate 76 until the tail end of the arc groove 754, thereby completing the control operation of the number of shading plates used according to the set requirements, thereby achieving the improvement of the uniformity of the light spot and the control operation.

[0090] See also Figure 12-13 In the embodiment of the present invention, the rolling element 75 includes:

[0091] The square block 751 is fixedly mounted on the sides of the second light shielding plate 73, the third light shielding plate 76 and the fourth light shielding plate 77, and a support shaft 752 is rotatably mounted on the surface of the square block 751, and a roller 753 is fixedly mounted on the surface of the support shaft 752;

[0092] The arc groove 754 is located on the bottom surfaces of the first light shielding plate 71 , the second light shielding plate 73 and the third light shielding plate 76 , and the roller 753 is located inside the arc groove 754 for rolling operation.

[0093] See also Figure 15-16 In the embodiment of the present invention, the rotating member 78 includes a center ring 781, and the fourth shading plate 77 is fixedly installed on the surface of the center ring 781, and the upper part of the surface of the center ring 781 is fixed to the inner wall of the sleeve 72 through a rotating bearing, and the interior of the center ring 781 is connected to a long strip 782 through a control component 8, and the extending end of the long strip 782 is fixed to the inner side surface of the fixed plate 51.

[0094] See also Fig.16 In the embodiment of the present invention, the control component 8 includes:

[0095] The control column 81 is fixedly mounted on the inner side of the center ring 781;

[0096] The support column 82 is fixedly mounted on the top of the long plate 782, and a spiral climbing groove 83 is provided on the surface of the support column 82. The control column 81 slides inside the climbing groove 83, and the lifting and lowering of the control column 81 realizes the synchronous rotation of the control column 81 and the center ring 781 under the limit of the climbing groove 83.

[0097] Embodiment 2. The present invention also discloses that the total number of light rays has been predetermined before simulation in the device. During the ray tracing process, the number of light rays is proportionally allocated according to the radiation energy of each light source, and then each light source allocates light rays according to the spectral distribution. Generally, the higher the energy, the more light rays are allocated to the wavelength. The color information of each light ray is composed of the wavelength value and its radiation flux, and its numerical value is determined by the luminous flux and spectral distribution predefined by the light source.

[0098] Assume that the radiant flux of a single light source is , the spectral function is , the relative light intensity distribution is ,in is the direction cosine of the light source. Assuming that the number of rays from this light source is n, the radiant flux is , the wavelength is , the initial coordinates are , the initial direction cosines are , assuming that the number of light rays with the same wavelength is , the number of rays with the same direction cosine is ,but :

[0099]

[0100]

[0101]

[0102] The wavelength of light does not change during operation, but the radiation flux will be lost due to optical devices. The position and direction cosines will change at any time, and a fixed value will be obtained after reaching the receiver. The software obtains the illumination distribution, color temperature distribution and other results by calculating the light information of the statistical receiver. The receivers in the Lighttools software are generally divided into two types, plane receivers and spherical receivers. This article mainly uses plane receivers. Plane receivers are all square, with m×n squares on them. The coordinates of the squares can be expressed as , whose size can be expressed as , each square receives a number of rays of light, and then the software calculates the illumination value and color temperature value and other parameters based on these rays. Assuming that the square The number of rays received is k, and the radiant flux is , the spectral function is , and assuming that the number of light rays with the same wavelength is , the radiant flux of the light is ,but

[0103]

[0104]

[0105] in ;

[0106] The above are the parameter changes during the operation of Lighttools software. It will automatically calculate the color coordinates and color temperature parameters based on the spectral function, and calculate the luminous flux, illumination and other parameters based on the radiation flux.

[0107] In addition, the existing optical engineering software LightTools software has an illumination module that can implement Monte Carlo ray tracing. Light from the light source goes through optical processes such as refraction and reflection of optical devices and finally reaches the receiving surface. The properties of the light carry direction vector information, color information and energy information. The energy information of the light is given in a weighted manner, and the total energy is assigned to the light source model. Finally, the receiving surface counts the number and energy of light and calculates the luminous flux, illumination, brightness, color and other results.

[0108] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0109] When working, according to the curing operation of the annular outer frame glue of the product of different materials, the parameters of LD32 are adjusted according to the setting of the control host, and then the control instructions are generated after matching according to the actual situation. The control instructions are transmitted to the control end of the frame 1 through the connecting line 2, and then the motor inside the frame 1 is adjusted and controlled to realize the change control of the focal length of the lens 53;

[0110] The motor 62 drives the fixed threaded rod 63 to rotate, and the threaded rod 63 is driven under the sliding limit of the through rod 65 and the lower fixed plate 64, and the through limit of the upper connecting block 661 and the sliding bar 664, so that the fixed plate 51 fixed between the lower connecting block 663 and the lower fixed plate 64 is moved vertically, thereby driving the distance between the lens 53 and the LD32 to change;

[0111] When the distance between the circuit board 31 and the fixing plate 51 changes, the distance between the sleeve 72 and the long strip 782 also changes.

[0112] As the distance shortens, the control column 81 fixed on the inner side of the center ring 781 slides on the climbing groove 83 on the surface of the support column 82, and the control column 81 descends along the trajectory of the climbing groove 83 and rotates around the support column 82, and the control column 81 and the center ring 781 rotate synchronously to rotate the fourth light shielding plate 77, and when the fourth light shielding plate 77 rotates, the connected square block 751 and the roller 753 roll in the arc groove 754 on the bottom surface of the third light shielding plate 76 until the tail end of the arc groove 754, and then the climbing groove 83 continues to control the control column 81, which will cause the fourth light shielding plate 77 to continue to rotate, and the rotation at this time will cause the roller 753 on the third light shielding plate 76 to roll in the arc groove 754 of the second light shielding plate 73;

[0113] In this way, one shading plate, two shading plates, three shading plates or four shading plates can be used to block the light surface according to the needs;

[0114] In the process of starting up, the air cooling assembly 42 is started up by controlling the command to allow air to enter the frame 1 from the air inlet slot 43 , and then the hot gas is discharged to the outside through the air outlet slot 44 after the LD 32 is cooled.

[0115] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0116] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical system for forming a uniform annular light spot, comprising a frame (1), wherein a connecting wire (2) is electrically installed at a concave groove in the middle of the frame (1), and the connecting wire (2) is electrically connected to a connecting end of an external control host, and a light spot control mechanism is arranged inside the frame (1) to control and form a uniform annular light spot, characterized in that: The light spot control mechanism comprises: A light source unit (3) is arranged inside the frame (1) and generates light to implement the operation of curing glue on the surface of the product; An air cooling unit (4) is arranged inside the frame (1) and located above the light source unit (3), and is used to achieve heat dissipation for the light source unit (3); The adjustment portion (5) is provided with a fixing plate (51) located below the light source portion (3) and is controlled to move vertically via a driving member (6), and the fixing plate (51) is provided with a concave groove (52) opposite to the light source portion (3), and lenses (53) are equidistantly installed inside the concave groove (52) to achieve refraction of the light source, and a light shielding portion (7) is provided between the fixing plate (51) and the opposite sides of the light source portion (3) at the diagonal position to achieve control operation of part of the light source.

2. An optical system for forming a uniform annular light spot according to claim 1, characterized in that: The light source unit (3) comprises a circuit board (31) fixedly mounted inside the frame (1), the circuit board (31) being connected to an electrical end of the frame (1), and a plurality of LDs (32) arranged in an annular array at equal intervals on the bottom of the circuit board (31), the annular array being arranged using two rows of identical LDs (32).

3. The optical system for forming a uniform annular light spot according to claim 1, characterized in that: The air cooling part (4) comprises a connecting plate (41) fixedly mounted inside the frame (1), and a plurality of air cooling components (42) are equidistantly mounted on the bottom of the connecting plate (41) to realize wind power generation, and a vent hole is provided on the top of the connecting plate (41) and on each air cooling component (42), and an air inlet groove (43) is provided on the top of the frame (1) and directly above the connecting plate (41), and an air outlet groove (44) is provided on the side of the frame (1) and at a horizontal position of the circuit board (31).

4. The optical system for forming a uniform annular light spot according to claim 3, characterized in that: The air cooling assembly (42) comprises a mounting frame (421) mounted on the bottom of the connecting plate (41), and a placement groove (422) is provided through the surface of the mounting frame (421). A motor is installed inside the placement groove (422) and drives a fan blade (423) to realize air flow and blowing operation.

5. The optical system for forming a uniform annular light spot according to claim 2, characterized in that: The driving member (6) comprises: An upper fixed plate (61) is mounted on a side of the circuit board (31), a motor (62) is mounted on the top of the upper fixed plate (61), and a threaded rod (63) is fixed to the output end of the motor (62) and extends through the lower side of the upper fixed plate (61); The lower fixing plate (64) is connected and installed on the side of the fixed plate (51) and is located below the upper fixing plate (61), and the threaded rod (63) is threadedly connected to the lower fixing plate (64), and the surface of the upper fixing plate (61) is symmetrically installed with a penetration rod (65), and the penetration rod (65) penetrates the lower fixing plate (64) and can slide relative to the lower fixing plate (64); A sliding assembly (66) is provided on the side of the circuit board (31) and the fixing plate (51) and on the symmetrical side of the upper fixing plate (61) and the lower fixing plate (64) so ​​as to limit the lower fixing plate (64) to move only in the vertical direction.

6. The optical system for forming a uniform annular light spot according to claim 5, characterized in that: The sliding assembly (66) comprises: An upper connecting block (661) is mounted on the other side of the circuit board (31), and a through groove (662) is formed on the surface of the upper connecting block (661); The lower connecting block (663) is mounted on the other side of the fixing plate (51). A sliding bar (664) is mounted on the top of the lower connecting block (663). The sliding bar (664) penetrates the through groove (662) and can slide relative to each other.

7. The optical system for forming a uniform annular light spot according to claim 2, characterized in that: The light shielding portion (7) comprises: A first light shielding plate (71) is located on the bottom surface of the circuit board (31) and is located between the LD (32). A sleeve (72) is installed thereon, and the first light shielding plate (71) is fixedly installed on the surface of the sleeve (72); A second light shielding plate (73) has a collar (74) fixedly mounted on its surface, and the collar (74) is sleeved on the surface of the sleeve (72) and can rotate relatively thereto, and a side surface of the second light shielding plate (73) slides in an arc shape on the bottom surface of the first light shielding plate (71) with the sleeve (72) as the center via a rolling member (75); The third light shielding plate (76) has a similar sleeve (74) fixedly mounted on its surface, and the sleeve (74) is sleeved on the surface of the sleeve (72) and can rotate relatively thereto, and the side surface of the third light shielding plate (76) also slides in an arc shape on the bottom surface of the second light shielding plate (73) with the sleeve (72) as the center through a rolling member (75); The fourth light shielding plate (77) has a rotating member (78) disposed on its surface and is located inside the sleeve (72) for rotation. The side surface of the fourth light shielding plate (77) also slides in an arc shape on the bottom surface of the third light shielding plate (76) with the sleeve (72) as the center through a rolling member (75), and a baffle (79) is fixedly installed on one side of the fourth light shielding plate (77).

8. An optical system for forming a uniform annular light spot according to claim 7, characterized in that: The rolling element (75) comprises: A square block (751) is fixedly mounted on the sides of the second light shielding plate (73), the third light shielding plate (76) and the fourth light shielding plate (77); a support shaft (752) is rotatably mounted on the surface of the square block (751), and a roller (753) is fixedly mounted on the surface of the support shaft (752); The arc-shaped groove (754) is located on the bottom surfaces of the first light shielding plate (71), the second light shielding plate (73) and the third light shielding plate (76), and the roller (753) is located inside the arc-shaped groove (754) for rolling operation.

9. The optical system for forming a uniform annular light spot according to claim 7, characterized in that: The rotating member (78) comprises a center ring (781), and a fourth light shielding plate (77) is fixedly mounted on the surface of the center ring (781), and the upper part of the surface of the center ring (781) is fixed to the inner wall of the sleeve (72) via a rotating bearing, and the interior of the center ring (781) is connected to a long strip (782) via a control component (8), and an extended end of the long strip (782) is fixed to the inner side surface of the fixed plate (51).

10. An optical system for forming a uniform annular light spot according to claim 9, characterized in that: The control component (8) comprises: A control column (81) is fixedly mounted on the inner side of the center ring (781); The support column (82) is fixedly mounted on the top of the long strip (782), and a spiral climbing groove (83) is provided on the surface of the support column (82). The control column (81) is located inside the climbing groove (83) for sliding, and the lifting and lowering of the control column (81) realizes the synchronous rotation of the control column (81) and the center ring (781) under the limit of the climbing groove (83).

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