Laser beam dodging device

Abstract

The utility model relates to the technical field of optical devices, in particular to a laser beam dodging device, which is characterized in that a first lens cone assembly is mounted on a second lens cone assembly, and then the second lens cone assembly and a third lens cone assembly are connected and fixed through a connecting assembly, so that the assembly efficiency and the convenience are improved; comprising a first lens cone assembly, a second lens cone assembly, a third lens cone assembly and a connecting assembly, the second lens cone assembly is arranged between the first lens cone assembly and the third lens cone assembly, and the second lens cone assembly and the third lens cone assembly are fixedly connected through the connecting assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of optical devices, in particular to a laser beam homogenizing device. Background Art

[0002] In the fields of laser lighting, laser therapy, etc., a laser beam with uniform light intensity distribution is often required for detection, lighting, heating, etc.

[0003] In the prior art, patent document No. 201910910334.5 discloses a laser spot homogenizing device, comprising a first lens barrel, through which an optical fiber is transmitted to a second lens barrel, wherein two storage slots are provided inside the first lens barrel, in which a collimating lens and a circular Powell prism are placed from front to back, respectively, and a cylindrical lens barrel is installed inside the second lens barrel, wherein the rear end of the cylindrical lens barrel is provided with a first groove for clamping the cylindrical lens, and first rotation adjustment holes are provided on both sides of the rear end of the cylindrical lens barrel. The present invention homogenizes the laser into a collimated uniform straight spot by arranging a collimating lens and a circular Powell prism inside the first lens barrel and a cylindrical mirror inside the second lens barrel; and a long Powell prism is arranged at the rear end of the cylindrical mirror, so that the uniform straight spot is formed into a uniform rectangular spot; both a uniform surface spot and a uniform collimated straight spot can be obtained, which has multiple functions and a wide range of applications.

[0004] During use, it was found that the above device was troublesome in assembling the second lens barrel, the cylindrical lens barrel and the long Powell lens barrel, which affected the assembly efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a laser beam homogenizing device that improves assembly convenience.

[0006] The utility model provides a laser beam homogenizing device, comprising a first lens barrel assembly, a second lens barrel assembly, a third lens barrel assembly and a connecting assembly, wherein the second lens barrel assembly is arranged between the first lens barrel assembly and the third lens barrel assembly, and the second lens barrel assembly and the third lens barrel assembly are fixedly connected by the connecting assembly; the first lens barrel assembly is installed on the second lens barrel assembly, and then the second lens barrel assembly and the third lens barrel assembly are connected and fixed by the connecting assembly, thereby improving assembly efficiency and convenience.

[0007] Preferably, the first lens barrel assembly includes a first lens barrel body, a collimating lens, a circular Powell prism and an external threaded portion. Grooves are respectively provided at the front and rear ends of the first lens barrel body. One group of grooves is clamped with the collimating lens, and the other group of grooves is clamped with the circular Powell prism. The outer side wall of the first lens barrel body is provided with an external threaded portion; the collimating lens is connected to the second lens barrel assembly through the external threaded portion, and the light beam is uniformed in sequence through the cooperation of the collimating lens and the circular Powell prism, thereby improving convenience.

[0008] Preferably, the second lens barrel assembly includes a second lens barrel body, a countersunk hole, a cylindrical mirror, a threaded hole and a clamping block, the cylindrical mirror is clamped inside the second lens barrel body, the top of the second lens barrel body is provided with a threaded hole, the bottom end of the second lens barrel body is provided with a clamping block, and the second lens barrel body is provided with a countersunk hole; the external threaded portion on the collimating lens is threadedly matched with the threaded hole to complete the installation of the first lens barrel body and the second lens barrel body, and then the connecting assembly passes through the threaded hole and the third lens barrel assembly to combine the second lens barrel assembly and the third lens barrel assembly, and after the light beam passes through the collimating lens and the circular Powell prism for a uniform light operation, the light beam passes through the cylindrical mirror for a second uniform light operation.

[0009] Preferably, the third lens barrel assembly includes a third lens barrel body, a circular hole, a Powell lens barrel and a card slot, a Powell lens barrel is arranged inside the third lens barrel body, a circular hole is arranged on the top of the third lens barrel body, a card slot is arranged on the top of the third lens barrel body, and the card slot is adapted to the card block; the first lens barrel body is placed on the top of the third lens barrel body, and the two groups of card blocks are respectively inserted into the two groups of card slots, so that the two groups of countersunk holes coincide with the two groups of circular holes respectively, and then the connecting assembly passes through the countersunk hole and the circular hole, thereby completing the connection between the second lens barrel body and the third lens barrel body, and the light beam passes through the Powell lens barrel and performs three light uniformity operations.

[0010] Preferably, the connecting assembly includes a fixing ring, an inner screw tube and a bolt. Two groups of inner screw tubes are provided on the top of the fixing ring, and each group of inner screw tubes is screwed with a group of bolts. The two groups of inner screw tubes are respectively passed through a group of round holes and a group of countersunk holes, and then a group of bolts are placed in a group of countersunk holes and threadedly connected with a group of inner screw tubes, thereby completing the connection between the second lens barrel body and the third lens barrel body, thereby improving convenience.

[0011] Preferably, the card block is provided with a chamfered portion; the card block is quickly inserted into the card slot with the cooperation of the chamfered portion, thereby improving convenience.

[0012] Preferably, flat washers are further included, and each group of bolts is fitted with a group of flat washers; when the bolts enter the countersunk holes and are threadedly connected with a group of internal screw tubes, the flat washers increase the contact area between the bolts and the countersunk holes, thereby improving the firmness of the installation.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the first lens barrel assembly is installed on the second lens barrel assembly, and then the second lens barrel assembly and the third lens barrel assembly are connected and fixed by a connecting assembly, thereby improving assembly efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 2 is an enlarged structural diagram of the first lens barrel body and the collimating lens structure;

[0016] Figure 3 It is a schematic diagram of the enlarged structure of the third lens barrel body structure;

[0017] Figure 4 It is a schematic diagram of the enlarged structure of the second lens barrel body and the clamping block;

[0018] Figure 5 It is an enlarged structural diagram of the structure including the fixing ring and bolts;

[0019] Figure 6 It is a schematic cross-sectional structural diagram of the present utility model.

[0020] Markings in the accompanying drawings: 1. First lens barrel assembly; 2. Second lens barrel assembly; 3. Third lens barrel assembly; 4. Connecting assembly; 5. First lens barrel body; 6. Collimating lens; 7. Circular Powell prism; 8. External threaded portion; 9. Second lens barrel body; 10. Countersunk hole; 11. Cylindrical mirror; 12. Threaded hole; 13. Block; 14. Third lens barrel assembly; 15. Circular hole; 16. Powell lens barrel; 17. Slot; 18. Fixing ring; 19. Internal screw; 20. Bolt. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0022] Example 1

[0023] like Figures 1 to 6 As shown, a laser beam homogenizing device of the present invention includes a first lens barrel assembly 1, a second lens barrel assembly 2, a third lens barrel assembly 3 and a connecting assembly 4. The second lens barrel assembly 2 is arranged between the first lens barrel assembly 1 and the third lens barrel assembly 3, and the second lens barrel assembly 2 and the third lens barrel assembly 3 are fixedly connected by the connecting assembly 4;

[0024] like Figure 1 、 Figure 2 and Figure 6 As shown, the first lens barrel assembly includes a first lens barrel body 5, a collimating lens 6, a circular Powell prism 7 and an external threaded portion 8. The front and rear ends of the first lens barrel body 5 are respectively provided with grooves, one group of grooves is clamped with the collimating lens 6, and the other group of grooves is clamped with the circular Powell prism 7. The outer side wall of the first lens barrel body 5 is provided with an external threaded portion 8;

[0025] like Figure 1 、 Figure 4 and Figure 6 As shown, the second lens barrel assembly includes a second lens barrel body 9, a countersunk hole 10, a cylindrical mirror 11, a threaded hole 12 and a clamping block 13. The cylindrical mirror 11 is clamped inside the second lens barrel body 9, the top of the second lens barrel body 9 is provided with a threaded hole 12, the bottom of the second lens barrel body 9 is provided with a clamping block 13, and the second lens barrel body 9 is provided with a countersunk hole 10;

[0026] like Figure 1 、 Figure 3 and Figure 6 As shown, the third lens barrel assembly includes a third lens barrel body 14, a circular hole 15, a Powell lens barrel 16 and a card slot 17. The Powell lens barrel 16 is arranged inside the third lens barrel body 14, the circular hole 15 is arranged on the top of the third lens barrel body 14, and the card slot 17 is arranged on the top of the third lens barrel body 14, and the card slot 17 is adapted to the card block 13.

[0027] In this embodiment, the external threaded portion 8 on the collimating lens 6 is threadedly engaged with the threaded hole 12, thereby completing the installation of the first lens barrel body 5 and the second lens barrel body 9, and the first lens barrel body 5 is placed on the top of the third lens barrel body 14. At the same time, the two groups of card blocks 13 are respectively inserted into the two groups of card slots 17, so that the two groups of countersunk holes 10 coincide with the two groups of circular holes 15, respectively. Then, the connecting component passes through the countersunk holes 10 and the circular holes 15, thereby completing the connection between the second lens barrel body 9 and the third lens barrel body 14. After the light beam passes through the collimating lens 6 and the circular Powell prism 7 for one homogenization operation, the light beam passes through the cylindrical mirror 11 for a second homogenization operation, and the light beam passes through the strip Powell lens barrel 16 for a third homogenization operation.

[0028] Example 2

[0029] like Figures 1 to 6 As shown, a laser beam homogenizing device of the present invention includes a first lens barrel assembly 1, a second lens barrel assembly 2, a third lens barrel assembly 3 and a connecting assembly 4. The second lens barrel assembly 2 is arranged between the first lens barrel assembly 1 and the third lens barrel assembly 3, and the second lens barrel assembly 2 and the third lens barrel assembly 3 are fixedly connected by the connecting assembly 4;

[0030] like Figure 1 、 Figure 2 and Figure 6As shown, the first lens barrel assembly includes a first lens barrel body 5, a collimating lens 6, a circular Powell prism 7 and an external threaded portion 8. The front and rear ends of the first lens barrel body 5 are respectively provided with grooves, one group of grooves is clamped with the collimating lens 6, and the other group of grooves is clamped with the circular Powell prism 7. The outer side wall of the first lens barrel body 5 is provided with an external threaded portion 8;

[0031] like Figure 1 、 Figure 4 and Figure 6 As shown, the second lens barrel assembly includes a second lens barrel body 9, a countersunk hole 10, a cylindrical mirror 11, a threaded hole 12 and a clamping block 13. The cylindrical mirror 11 is clamped inside the second lens barrel body 9, the top of the second lens barrel body 9 is provided with a threaded hole 12, the bottom of the second lens barrel body 9 is provided with a clamping block 13, and the second lens barrel body 9 is provided with a countersunk hole 10;

[0032] like Figure 1 、 Figure 3 and Figure 6 As shown, the third lens barrel assembly includes a third lens barrel body 14, a circular hole 15, a Powell lens barrel 16 and a card slot 17. The Powell lens barrel 16 is provided inside the third lens barrel body 14, the circular hole 15 is provided on the top of the third lens barrel body 14, and the card slot 17 is provided on the top of the third lens barrel body 14. The card slot 17 is adapted to the card block 13;

[0033] like Figure 1 and Figure 5 As shown, the connection assembly includes a fixing ring 18, an inner screw tube 19 and a bolt 20. Two groups of inner screw tubes 19 are provided on the top of the fixing ring 18, and each group of inner screw tubes 19 is screwed with a group of bolts 20.

[0034] In this embodiment, the external threaded portion 8 on the collimating lens 6 is threadedly matched with the threaded hole 12, thereby completing the installation of the first lens barrel body 5 and the second lens barrel body 9, and the first lens barrel body 5 is placed on the top of the third lens barrel body 14. At the same time, the two groups of card blocks 13 are respectively inserted into the two groups of card slots 17, so that the two groups of countersunk holes 10 coincide with the two groups of circular holes 15, respectively. The two groups of internal screws 19 are respectively passed through a group of circular holes 15 and a group of countersunk holes 10, and then a group of bolts 20 are placed in a group of countersunk holes 10 and threadedly connected with a group of internal screws 19, thereby completing the connection between the second lens barrel body 9 and the third lens barrel body 14. After the light beam passes through the collimating lens 6 and the circular Powell prism 7 for a uniform light operation, the light beam passes through the cylindrical mirror 11 for a second uniform light operation, and the light beam passes through the strip Powell lens barrel 16 for a third uniform light operation.

[0035] The collimating lens 6, circular Powell prism 7, cylindrical mirror 11 and strip Powell lens barrel 16 of the laser beam homogenizing device of the present invention are purchased on the market. Technicians in this industry only need to install and operate them according to the accompanying instruction manual without the need for creative work by technicians in this field.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A laser beam homogenizing device, comprising a first lens barrel assembly (1), a second lens barrel assembly (2), a third lens barrel assembly (3) and a connecting assembly (4), wherein the second lens barrel assembly (2) is arranged between the first lens barrel assembly (1) and the third lens barrel assembly (3), and characterized in that: The second lens barrel assembly (2) and the third lens barrel assembly (3) are fixedly connected via a connecting assembly (4); The first lens barrel assembly comprises a first lens barrel body (5), a collimating lens (6), a circular Powell prism (7) and an external threaded portion (8); grooves are respectively provided at the front and rear ends of the first lens barrel body (5); one group of grooves is clamped with the collimating lens (6), and the other group of grooves is clamped with the circular Powell prism (7); and the outer side wall of the first lens barrel body (5) is provided with an external threaded portion (8); The second lens barrel assembly comprises a second lens barrel body (9), a countersunk hole (10), a cylindrical mirror (11), a threaded hole (12) and a clamping block (13); the cylindrical mirror (11) is clamped inside the second lens barrel body (9); the threaded hole (12) is provided at the top end of the second lens barrel body (9); the clamping block (13) is provided at the bottom end of the second lens barrel body (9); and the countersunk hole (10) is provided on the second lens barrel body (9).

2. A laser beam homogenizing device according to claim 1, characterized in that: The third lens barrel assembly comprises a third lens barrel body (14), a circular hole (15), a Powell lens barrel (16) and a clamping slot (17); the third lens barrel body (14) is provided with the Powell lens barrel (16); the top of the third lens barrel body (14) is provided with the circular hole (15); the top of the third lens barrel body (14) is provided with the clamping slot (17); and the clamping slot (17) is adapted to the clamping block (13).

3. A laser beam homogenizing device according to claim 2, characterized in that: The connecting assembly comprises a fixing ring (18), an inner screw tube (19) and a bolt (20). Two groups of inner screw tubes (19) are arranged on the top of the fixing ring (18), and each group of inner screw tubes (19) is respectively screwed with a group of bolts (20).

4. The laser beam homogenizing device according to claim 1, wherein: The clamping block (13) is provided with a chamfered portion.

5. The laser beam homogenizing device according to claim 3, characterized in that: It also includes flat washers, and each set of bolts (20) is sleeved with a set of flat washers.

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