Optical axis adjusting mechanism of laser marking module

Abstract

The utility model provides a laser marking module optical axis adjusting mechanism which mainly comprises a laser marking module, at least one eccentric structure body, a sleeve and an optical lens module, the at least one eccentric structure body is correspondingly arranged between the laser marking module and the sleeve, and the optical lens module is arranged between the sleeve and the laser marking module. Each eccentric structure body is provided with an outer diameter and an eccentric inner hole which is eccentrically arranged relative to the axis of the outer diameter, one eccentric structure body is embedded in the sleeve, and the eccentric inner hole of the other eccentric structure body is used for mounting the laser marking module; by means of relative rotation adjustment of at least one eccentric structure body and corresponding adjustment of the position of the laser optical axis of the laser marking module penetrating through the optical lens module through eccentric design, adjustment can be performed according to different optical lenses or optical axis center line light, axis thickness types, light intensity distribution or light spot positions. And the light output quality is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of laser marking structure technology, and in particular to a laser marking module optical axis adjustment mechanism. Background Technology

[0002] Currently, with the rapid development of science and technology, many technologically advanced and convenient products have emerged in various industries and in people's daily lives. Among them, lasers refer to the amplified light produced through stimulated emission. Lasers have excellent monochromaticity, extremely low divergence, and can achieve extremely high brightness [power]. Therefore, lasers can be used in many fields of beam indication, aiming, and ranging, making them widely used in industries such as fiber optic communication, laser spectroscopy, laser ranging, lidar, laser cutting, laser discs, and laser scanning.

[0003] A typical laser module consists of a laser diode housed within a cylindrical body, with a lens positioned at the front end of the body. This allows the laser beam emitted by the laser diode to pass through the body and illuminate the outside of the lens. However, while this type of laser module achieves the intended effect of emitting laser light, it has been found in actual use that the focal length of the laser module is fixed, resulting in a fixed linewidth of the emitted laser light. This prevents users from adjusting it according to different needs. Furthermore, the optical axis of the lens requires precise concentricity adjustment, causing significant inconvenience in use. Therefore, there is still room for improvement in its overall structural design.

[0004] Therefore, based on the above, and drawing on years of extensive design, development and manufacturing experience in the relevant industry, the inventor provides a laser marking module optical axis adjustment mechanism in the hope of achieving better practical value. Utility Model Content

[0005] The main purpose of this utility model is to provide a laser marking module optical axis adjustment mechanism, especially to facilitate the adjustment of the laser marking module's emitted optical axis shape.

[0006] To solve the above-mentioned technical problems, the present invention provides a laser marking module optical axis adjustment mechanism, which mainly includes a laser marking module, at least one eccentric structure, a sleeve, and an optical lens module. The at least one eccentric structure is installed between the laser marking module and the sleeve. Each eccentric structure has an outer diameter and an eccentric inner hole eccentrically positioned relative to the outer diameter axis, allowing one eccentric structure to be embedded in the sleeve, while the eccentric inner hole of the other eccentric structure is used to install the laser marking module. Through relative rotation adjustment of the at least one eccentric structure, and by adjusting the position of the laser optical axis of the laser marking module passing through the optical lens module via the eccentric design, it can adapt to different optical lenses or optical axis centerline light, axis thickness, light intensity distribution, or spot position adjustments, effectively improving the light output quality and its advantages.

[0007] In a preferred embodiment of the optical axis adjustment mechanism for the laser marking module of this utility model, a first eccentric structure and a second eccentric structure are provided between the laser marking module and the sleeve. The first eccentric structure has a first outer diameter and a first eccentric inner hole that is eccentrically disposed relative to the first outer diameter axis. The first eccentric inner hole is used to install the laser marking module. The second eccentric structure has a second outer diameter and a second eccentric inner hole that is eccentrically disposed relative to the second outer diameter axis. The second eccentric inner hole is used to install the first eccentric structure and contact the first outer diameter. The second eccentric structure is then correspondingly embedded in the sleeve.

[0008] In a preferred embodiment of the laser marking module optical axis adjustment mechanism of this utility model, the laser marking module is mainly composed of a laser light source and optical components encapsulated or installed in a housing.

[0009] In a preferred embodiment of the laser marking module optical axis adjustment mechanism of this utility model, the laser light source can be a chip using LD / TO packaging, LD / COB packaging or VCSEL COB packaging. Attached Figure Description

[0010] Figure 1 Yes: A partial cross-sectional perspective view of this utility model;

[0011] Figure 2 Yes: A cross-sectional schematic diagram of this utility model;

[0012] Figure 3 Yes: The following are schematic diagrams showing the positions of the first eccentric structure relative to the second eccentric structure in this utility model: (A) 0 degrees, (B) 90 degrees, (C) 180 degrees, and (D) 270 degrees.

[0013] Figure 4Yes: The following are schematic diagrams showing the positions of the second eccentric structure relative to the first eccentric structure in this utility model, with rotation adjustments at (A) 0 degrees, (B) 90 degrees, (C) 180 degrees, and (D) 270 degrees.

[0014] Figure 5 Yes: A schematic diagram of the optical axis of the laser marking module of this utility model entering the center of the conical lens;

[0015] Figure 6 Yes: A schematic diagram of the laser marking module of this utility model after the optical axis is eccentrically adjusted and the light enters the conical lens;

[0016] Figure 7 Yes: A schematic diagram of the laser marking module of this utility model after the optical axis is eccentrically adjusted and the light enters the prism;

[0017] Figure 8 Yes: A schematic diagram of the optical axis of the laser marking module of this utility model entering the center of the convex lens.

[0018] The component names corresponding to the symbols in the accompanying drawings are as follows:

[0019] 1: Laser marking module;

[0020] L: Laser optical axis;

[0021] 11: Laser light source;

[0022] 12: Optical components;

[0023] 13: Outer shell;

[0024] 2: Sleeve;

[0025] 21: Shaft hole;

[0026] 3: Optical mirror module;

[0027] 4: Eccentric structure;

[0028] 41:Outer diameter;

[0029] 42: Eccentric inner hole;

[0030] 4A: First eccentric structure;

[0031] 41A: First outer diameter;

[0032] 42A: First eccentric inner hole;

[0033] 4B: Second eccentric structure;

[0034] 41B: Second outer diameter;

[0035] 42B: Second eccentric inner hole. Detailed Implementation

[0036] In order to more fully and clearly disclose the technical content, invention purpose and effects achieved by this utility model, a detailed description is provided, and please refer to the drawings.

[0037] First, please refer to Figure 1 and Figure 2 The image shown is a partial sectional perspective view and a sectional schematic diagram of the optical axis adjustment mechanism of the laser marking module of this utility model, which mainly includes:

[0038] A laser marking module 1 is a light source module that can emit a laser optical axis L;

[0039] A sleeve 2 is fitted outside the laser marking module 1 and has a shaft hole 21 on its end face for the laser optical axis L to pass through.

[0040] An optical mirror module 3 is installed at the shaft hole 21 of the sleeve 2;

[0041] At least two eccentric structures 4 are installed between the laser marking module 1 and the sleeve 2. Each eccentric structure 4 has an outer diameter 41 and an eccentric inner hole 42 that is eccentrically arranged relative to the outer diameter 41. The two eccentric structures 4 are fitted together, with one eccentric structure 4 embedded in the sleeve 2, and the eccentric inner hole 42 of the other eccentric structure 4 is used to install the laser marking module 1.

[0042] Please see Figure 1 and Figure 2 As shown, in actual use, the sleeve 2 has coaxial inner and outer diameters. Two or more eccentric structures 4 can be used between the laser marking module 1 and the sleeve 2 for optical axis adjustment. The following example illustrates the assembly using two eccentric structures 4:

[0043] It mainly comprises a first eccentric structure 4A and a second eccentric structure 4B. The first eccentric structure 4A has a first outer diameter 41A and a first eccentric inner hole 42A eccentrically disposed relative to the first outer diameter 41A. The first eccentric inner hole 42A is used to install the laser marking module 1. The second eccentric structure 4B has a second outer diameter 41B and a second eccentric inner hole 42B eccentrically disposed relative to the second outer diameter 41B. The second eccentric inner hole 42B is used to install the first eccentric structure 4A and contacts the first outer diameter 41A. In this way, the first eccentric structure 4A and the second eccentric structure 4B are fitted together, and the second eccentric structure 4B is then fitted into the sleeve 2.

[0044] Furthermore, the laser marking module 1 of this utility model mainly consists of a laser light source 11 and an optical component 12. The laser light source 11 can be a chip using LD / TO packaging, LD / COB packaging, or VCSEL COB packaging technology. The laser light source 11 and the optical component 12 can be packaged into a module or mounted in a housing 13 to form a module. The form of the laser marking module 1 is not limited by the above, nor is it a limitation on the product structure or usage of this utility model. Any appropriate changes or modifications by those skilled in the art, as long as the laser marking module 1 is a light source module capable of emitting a laser optical axis, should be considered as not departing from the patent scope of this utility model.

[0045] For practical use of this utility model, please refer to [link / reference]. Figure 3 and Figure 4 As shown, the first eccentric structure 4A and the second eccentric structure 4B are rotated relative to each other to adjust the position of the laser optical axis L of the laser marking module 1 passing through the optical mirror module 3 through the eccentric design. Figure 3 As shown in (A) to (D), the first eccentric structure 4A is rotated relative to the second eccentric structure 4B [stationary], and the optical axis deflection state is represented by (A) as 0 degrees, (B) as 90 degrees, (C) as 180 degrees, and (D) as 270 degrees. Figure 4 (A)~(D) represent the rotation of the second eccentric structure (4B) relative to the first eccentric structure (4A) [without moving], and the optical axis deflection state is represented by (A) as 0 degrees, (B) as 90 degrees, (C) as 180 degrees and (D) as 270 degrees.

[0046] Next, when the optical axis emitted from the laser marking module 1 enters the optical mirror module 3, the optical mirror module 3 can be equipped with optical lenses such as conical mirrors, reflecting mirrors, prisms, or convex lenses, etc. Please refer to... Figures 5-8 As shown, when the optical axis of laser marking module 1 enters the center of the conical lens [as shown] Figure 5 [As shown] or after eccentric adjustment of the angle, the optical axis enters the oblique cone section of the conical lens. Figure 6 As shown, the position of the spot is changed by the interaction of the two eccentric structures. The position of the spot changes at the illumination position of the optical mirror module 3 [cone mirror], which changes the thickness of the reflected line, the distribution of light intensity, or the position of the spot, thus achieving an adjustable function.

[0047] Similarly, please refer to Figure 7 and Figure 8As shown, when the optical axis of the laser marking module 1 enters the prism (or reflector) and convex lens, it can also be deflected through the interaction of the two eccentric structures, thereby changing the position of the spot. The position of the spot changes the illumination position of the optical mirror module 3 (prism or reflector), which in turn changes the thickness of the reflected line, the light intensity distribution, or the position of the spot, thus achieving an adjustable function.

[0048] In addition to using two or more eccentric structures 4 for adjustment as described above, in another embodiment, one eccentric structure 4 can also be used for adjustment according to the optical axis shape required by the user. The eccentric structure 4 has an outer diameter 41 and an eccentric inner hole 42 that is eccentrically set relative to the outer diameter 41. The laser marking module 1 is installed in the eccentric inner hole 42, that is, the laser marking module 1 is rotated and adjusted on the eccentric axis path, and the optical axis shape is projected and reflected according to the different types of optical lenses of the optical lens module 3.

[0049] However, the foregoing embodiments or illustrations are not intended to limit the product structure or usage of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

[0050] As can be seen from the above description of the use and implementation of this utility model, compared with the prior art, this utility model mainly has the following advantages:

[0051] 1. The optical axis adjustment mechanism of the laser marking module of this utility model, through the eccentric design, allows the two eccentric structures to deflect alternately, thereby changing the position of the spot. When the position of the spot changes in the irradiation position of the optical mirror module, the thickness of the reflected line, the light intensity distribution, or the position of the spot can be changed, thus achieving an adjustable function.

[0052] 2. The optical axis adjustment mechanism of the laser marking module of this utility model uses two eccentric structures for adjustment. When the first and second eccentric structures rotate relative to each other, the beam deviates from the center, thereby changing the position. The two eccentric structures work together to achieve a multi-position stepless adjustment range.

[0053] In conclusion, the embodiments of this utility model can indeed achieve the expected effects. The specific structure disclosed therein has not appeared in similar products, nor was it disclosed before this utility model application. Therefore, it fully complies with the provisions and requirements of the Patent Law, and thus a utility model patent application is filed in accordance with the law.

Claims

1. A laser marking module optical axis adjustment mechanism, mainly comprising a laser marking module, a sleeve corresponding to the outside of the laser marking module, the sleeve having an axle hole for the laser optical axis emitted from the laser marking module to pass through, and an optical lens module correspondingly installed in the axle hole, wherein: An eccentric structure is installed between the laser marking module and the sleeve. The eccentric structure has an outer diameter and an eccentric inner hole that is eccentrically arranged relative to the outer diameter. The laser marking module is embedded in the eccentric inner hole, and the sleeve is sleeved outside the outer diameter of the eccentric structure.

2. A laser marking module optical axis adjustment mechanism, mainly comprising a laser marking module, a sleeve corresponding to the outside of the laser marking module, the sleeve having an shaft hole for the laser optical axis emitted from the laser marking module to pass through, and an optical lens module correspondingly installed in the shaft hole, wherein: At least two eccentric structures are installed between the laser marking module and the sleeve. Each eccentric structure has an outer diameter and an eccentric inner hole that is eccentrically arranged relative to the outer diameter axis. The two eccentric structures are fitted together, with one eccentric structure embedded in the sleeve, and the eccentric inner hole of the other eccentric structure is used to install the laser marking module.

3. The laser marking module optical axis adjustment mechanism according to claim 2, characterized in that: The laser marking module and the sleeve are provided with a first and a second eccentric structure. The first eccentric structure has a first outer diameter and a first eccentric inner hole that is eccentrically arranged relative to the first outer diameter. The first eccentric inner hole is used to install the laser marking module. The second eccentric structure has a second outer diameter and a second eccentric inner hole that is eccentrically arranged relative to the second outer diameter. The second eccentric inner hole is used to install the first eccentric structure and is in contact with the first outer diameter. The second eccentric structure is embedded in the sleeve.

4. The laser marking module optical axis adjustment mechanism according to claim 1, 2, or 3, characterized in that: The laser marking module is mainly composed of a laser light source and optical components.

5. The laser marking module optical axis adjustment mechanism according to claim 1, 2, or 3, wherein... The feature is that the laser marking module includes a housing, and a laser light source and optical components are assembled inside the housing.

6. The laser marking module optical axis adjustment mechanism according to claim 4, characterized in that: The laser light source may be a chip packaged in LD / TO, LD / COB or VCSEL COB.

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