Laser beam expander module convenient to adjust
By designing adjustable lens positions in the laser beam expander module, the problem of fixed beam expansion size of the existing laser beam expander module is solved, and flexible adjustment of the beam expansion degree is achieved, and scanning quality and convenience are improved. .
Patent Information
- Application Number
- CN202421181330.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The beam expansion size of existing laser beam expander modules is fixed, resulting in need of being away from the object when scanning larger objects, affecting the scanning quality.
A laser beam expander module is designed to adjust the beam expansion degree of the laser beam expander by turning the knob to change the position of the negative lens and the positive lens.
It realizes flexible adjustment of the beam expansion degree of the laser beam expander, adapts to scanned objects of different sizes, and improves scanning quality and convenience.
Smart Images
Figure CN222461809U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser beam expanders, in particular to a laser beam expander module which is easy to adjust. Background Art
[0002] Laser beam expander modules are used to expand the diameter of a parallel input beam to a larger parallel output beam. Beam expanders are commonly used in applications such as laser scanning, interferometry or telemetry. Today's beam expanders are designed as afocal systems developed from the foundation of a well-established optical telescope.
[0003] At present, most laser beam expander modules on the market have a fixed beam expansion size during scanning. When facing a larger object to be scanned, it is necessary to scan far away from the object. Scanning far away from the object will affect the scanning quality, which brings inconvenience to people using laser beam expander modules. Utility Model Content
[0004] The purpose of the utility model is to provide an adjustable laser beam expander module to solve the problem in the background technology that the size of the beam expander is fixed, and when facing a larger scanned object, it is necessary to scan away from the object, and scanning away from the object will affect the scanning quality. To achieve the above purpose, the utility model provides the following technical solutions: an adjustable laser beam expander module, comprising a base, the outer wall of one end of the base is rotatably connected to the inner wall of one end of the beam expander housing, and the inner wall of the beam expander housing is rotatably connected to the outer wall of the rotating mechanism.
[0005] The bottom of the outer side wall of the rotating mechanism is meshed and connected with the top of the negative lens mechanism, and the top of the outer side wall of the rotating mechanism is meshed and connected with the bottom of the positive lens mechanism.
[0006] Preferably, the base includes a connecting tube, a mounting plate and two laser sources, one side of the connecting tube is movably connected to a side of the mounting plate close to the outer wall, and one side of the mounting plate close to the middle is movably connected to one side of the two laser sources respectively, and the two laser sources are symmetrically distributed about the center of the mounting plate.
[0007] Preferably, the beam expander housing is composed of a beam expander mounting ring, a housing body, a lens mounting ring and an output lens; the inner wall of one end of the beam expander mounting ring is rotatably connected to the outer wall of one end of a connecting tube, and the other end of the beam expander mounting ring is movably engaged with one end of the housing body; the outer wall of the other end of the housing body is movably engaged with the inner wall of one end of the lens mounting ring, and the inner wall of the other end of the lens mounting ring is movably engaged with the outer wall of the output lens; and the outer side wall of the housing body is provided with a rotating through hole.
[0008] Preferably, the rotating mechanism includes a rotating rod, a rotating knob and a rotating gear shaft, the outer wall of the rotating rod is rotatably connected to the inner wall of the rotating through hole, and the outer wall of one end of the rotating rod is fixedly connected to the inner wall of the rotating knob, and the outer wall of the other end of the rotating rod is fixedly connected to the inner wall of the rotating gear shaft.
[0009] Preferably, the negative lens mechanism consists of a negative transparent tooth plate, a negative transparent connecting plate, a negative lens and a negative transparent limiting plate, the top of the negative transparent tooth plate is meshingly connected to the bottom of the outer side wall of the rotating gear shaft, and one side of the negative transparent tooth plate is fixedly connected to one side of the negative transparent connecting plate, the back side of the negative transparent connecting plate is fixedly connected to the front side of the outer side wall of the negative lens, and the back side of the outer side wall of the negative lens is fixedly connected to the front side of the negative transparent limiting plate.
[0010] Preferably, the positive lens mechanism consists of a positive transparent tooth plate, a positive transparent connecting plate, a positive lens and a positive transparent limiting plate, the bottom of the positive transparent tooth plate is meshingly connected to the top of the outer side wall of the rotating gear shaft, and one side of the positive transparent tooth plate is fixedly connected to one side of the positive transparent connecting plate, the back side of the positive transparent connecting plate is fixedly connected to the front side of the outer side wall of the positive lens, and the back side of the outer side wall of the positive lens is fixedly connected to the front side of the positive transparent limiting plate.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] In the utility model, by rotating the rotating knob, the rotating knob drives the rotating rod to rotate, the rotating rod drives the rotating gear shaft to rotate, the rotating gear shaft drives the negative transparent tooth plate to move linearly through the meshing action and the limiting action of the negative transparent limiting plate, the linear motion of the negative transparent tooth plate drives the negative transparent connecting plate to move linearly, the linear motion of the negative transparent connecting plate drives the negative lens to move linearly, the rotating gear shaft drives the positive transparent tooth plate to move linearly through the meshing action and the limiting action of the positive transparent limiting plate, the linear motion of the positive transparent tooth plate drives the positive transparent connecting plate to move linearly, the linear motion of the positive transparent connecting plate drives the positive lens to move linearly, the positions of the negative lens and the positive lens can be changed at the same time by rotating the rotating knob, the distance between the negative lens and the positive lens can be conveniently controlled, thereby facilitating the adjustment of the beam expansion degree of the laser beam expander, and bringing convenience to people using the laser beam expander module.
[0013] In the utility model, the connecting tube is rotated, and the rotation of the connecting tube drives the mounting plate to rotate, and the rotation of the mounting plate drives the laser source to rotate. The rotation of the laser source can change the laser projection angle, which is convenient for detecting objects at different angles and in different environments, and brings convenience to people using the laser beam expander module. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a cross-sectional view of the utility model;
[0016] Figure 3 It is an exploded view of the utility model;
[0017] Figure 4 An exploded view of the base of the utility model;
[0018] Figure 5 It is an exploded view of the beam expansion housing of the utility model;
[0019] Figure 6 It is an exploded view of the rotating mechanism of the utility model.
[0020] In the figure: 1. base; 101. connecting tube; 102. mounting plate; 103. laser source; 2. beam expansion housing; 201. beam expansion mounting ring; 202. housing body; 203. lens mounting ring; 204. output lens; 3. rotating mechanism; 301. rotating rod; 302. rotating knob; 303. rotating gear shaft; 4. negative lens mechanism; 401. negative transparent tooth plate; 402. negative transparent connecting plate; 403. negative lens; 404. negative transparent limiting plate; 5. positive lens mechanism; 501. positive transparent tooth plate; 502. positive transparent connecting plate; 503. positive lens; 504. positive transparent limiting plate. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figures 1 to 6 The utility model provides a technical solution: a laser beam expander module that is easy to adjust, including a base 1, an outer wall at one end of the base 1 is rotatably connected to an inner wall at one end of a beam expander shell 2, and an inner wall of the beam expander shell 2 is rotatably connected to an outer wall of a rotating mechanism 3.
[0023] The bottom of the outer wall of the rotating mechanism 3 is meshed and connected with the top of the negative lens mechanism 4 , and the top of the outer wall of the rotating mechanism 3 is meshed and connected with the bottom of the positive lens mechanism 5 .
[0024] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the base 1 includes a connecting tube 101, a mounting plate 102 and two laser sources 103. One side of the connecting tube 101 is movably connected to the side of the mounting plate 102 close to the outer wall, and the side of the mounting plate 102 close to the middle is movably connected to the sides of the two laser sources 103. The two laser sources 103 are symmetrically distributed about the center of the mounting plate 102. When the connecting tube 101 is rotated, the connecting tube 101 drives the mounting plate 102 to rotate, and the mounting plate 102 drives the laser source 103 to rotate. The rotation of the laser source 103 can change the shape of laser projection, which is convenient for detecting objects at different angles and brings convenience to people using the laser beam expander module.
[0025] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the beam expander housing 2 is composed of a beam expander mounting ring 201, a housing body 202, a lens mounting ring 203 and an output lens 204. The inner wall of one end of the beam expander mounting ring 201 is rotatably connected to the outer wall of one end of the connecting tube 101, and the other end of the beam expander mounting ring 201 is movably engaged with one end of the housing body 202, the outer wall of the other end of the housing body 202 is movably engaged with the inner wall of one end of the lens mounting ring 203, and the inner wall of the other end of the lens mounting ring 203 is movably engaged with the outer wall of the output lens 204, the outer side wall of the housing body 202 is provided with a rotating through hole, and the output lens 204 may include a surface cleaning of an internal positive lens.
[0026] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the rotating mechanism 3 includes a rotating rod 301, a rotating knob 302 and a rotating gear shaft 303. The outer wall of the rotating rod 301 is rotatably connected to the inner wall of the rotating through hole, and the outer wall of one end of the rotating rod 301 is fixedly connected to the inner wall of the rotating knob 302, and the outer wall of the other end of the rotating rod 301 is fixedly connected to the inner wall of the rotating gear shaft 303. When the rotating knob 302 is rotated, the rotating knob 302 rotates to drive the rotating rod 301 to rotate, and the rotating rod 301 rotates to drive the rotating gear shaft 303 to rotate.
[0027] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the negative lens mechanism 4 is composed of a negative transparent tooth plate 401, a negative transparent connecting plate 402, a negative lens 403 and a negative transparent limiting plate 404. The top of the negative transparent tooth plate 401 is meshed and connected with the bottom of the outer side wall of the rotating gear shaft 303, and one side of the negative transparent tooth plate 401 is fixedly connected with one side of the negative transparent connecting plate 402, the back side of the negative transparent connecting plate 402 is fixedly connected with the front side of the outer side wall of the negative lens 403, and the back side of the outer side wall of the negative lens 403 is fixedly connected with the front side of the negative transparent limiting plate 404. The rotation of the rotating gear shaft 303 drives the negative transparent tooth plate 401 to move linearly through the meshing action and the limiting action of the negative transparent limiting plate 404. The linear movement of the negative transparent tooth plate 401 drives the negative transparent connecting plate 402 to move linearly, and the linear movement of the negative transparent connecting plate 402 drives the negative lens 403 to move linearly.
[0028] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the positive lens mechanism 5 is composed of a positive transparent tooth plate 501, a positive transparent connecting plate 502, a positive lens 503 and a positive transparent limiting plate 504. The bottom of the positive transparent tooth plate 501 is meshed with the top of the outer wall of the rotating gear shaft 303, and one side of the positive transparent tooth plate 501 is fixedly connected to one side of the positive transparent connecting plate 502, the back side of the positive transparent connecting plate 502 is fixedly connected to the front side of the outer wall of the positive lens 503, and the back side of the outer wall of the positive lens 503 is fixedly connected to the front side of the positive transparent limiting plate 504, and the rotating gear shaft 303 rotates through The meshing action and the limiting action of the positive transparent limiting plate 504 drive the positive transparent tooth plate 501 to move linearly, the linear movement of the positive transparent tooth plate 501 drives the positive transparent connecting plate 502 to move linearly, and the linear movement of the positive transparent connecting plate 502 drives the positive lens 503 to move linearly. By turning the rotating knob, the positions of the negative lens 403 and the positive lens 503 can be changed at the same time, which is convenient for controlling the distance between the negative lens 403 and the positive lens 503, thereby facilitating the adjustment of the beam expansion degree of the laser beam expander, which brings convenience to people using the laser beam expander module.
[0029] The use method and advantages of the utility model: When the laser beam expander module which is easy to adjust is working, the working process is as follows:
[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, by rotating the rotating knob 302, the rotating knob 302 drives the rotating rod 301 to rotate, the rotating rod 301 drives the rotating gear shaft 303 to rotate, the rotating gear shaft 303 drives the negative transparent tooth plate 401 to move linearly through the meshing action and the limiting action of the negative transparent limiting plate 404, the linear movement of the negative transparent tooth plate 401 drives the negative transparent connecting plate 402 to move linearly, the linear movement of the negative transparent connecting plate 402 drives the negative lens 403 to move linearly, the rotating gear shaft 303 drives the positive transparent tooth plate 501 to move linearly through the meshing action and the limiting action of the positive transparent limiting plate 504, the linear movement of the positive transparent tooth plate 501 drives the positive transparent connecting plate 502 to move linearly The positive transparent connecting plate 502 moves linearly, driving the positive lens 503 to move linearly. By turning the knob, the positions of the negative lens 403 and the positive lens 503 can be changed at the same time, so that the distance between the negative lens 403 and the positive lens 503 can be conveniently controlled, thereby facilitating the adjustment of the beam expansion degree of the laser beam expander, bringing convenience to people in using the laser beam expander module. By rotating the connecting tube 101, the connecting tube 101 drives the mounting plate 102 to rotate, and the mounting plate 102 drives the laser source 103 to rotate. The rotation of the laser source 103 can change the shape of the laser projection, so that it is convenient to detect objects at different angles and in different environments, bringing convenience to people in using the laser beam expander module.
[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A laser beam expander module that is easy to adjust, comprising a base (1), characterized in that: The outer wall of one end of the base (1) is rotatably connected to the inner wall of one end of the beam expander housing (2), and the inner wall of the beam expander housing (2) is rotatably connected to the outer wall of the rotating mechanism (3); The bottom of the outer wall of the rotating mechanism (3) is meshedly connected with the top of the negative lens mechanism (4), and the top of the outer wall of the rotating mechanism (3) is meshedly connected with the bottom of the positive lens mechanism (5).
2. The laser beam expander module that is easy to adjust according to claim 1, characterized in that: The base (1) comprises a connecting tube (101), a mounting plate (102) and two laser sources (103); one side of the connecting tube (101) is movably engaged with a side of the mounting plate (102) close to the outer wall, and one side of the mounting plate (102) close to the middle is movably engaged with one side of the two laser sources (103), respectively; the two laser sources (103) are symmetrically distributed about the center of the mounting plate (102).
3. The laser beam expander module that is easy to adjust according to claim 2, characterized in that: The beam expansion housing (2) is composed of a beam expansion mounting ring (201), a housing body (202), a lens mounting ring (203), and an output lens (204); the inner wall of one end of the beam expansion mounting ring (201) is rotatably connected to the outer wall of one end of the connecting tube (101), and the other end of the beam expansion mounting ring (201) is movably engaged with one end of the housing body (202); the outer wall of the other end of the housing body (202) is movably engaged with the inner wall of one end of the lens mounting ring (203), and the inner wall of the other end of the lens mounting ring (203) is movably engaged with the outer wall of the output lens (204); and the outer side wall of the housing body (202) is provided with a rotation through hole.
4. The laser beam expander module that is easy to adjust according to claim 3, characterized in that: The rotating mechanism (3) comprises a rotating rod (301), a rotating knob (302) and a rotating gear shaft (303); the outer wall of the rotating rod (301) is rotatably connected to the inner wall of the rotating through hole; the outer wall of one end of the rotating rod (301) is fixedly connected to the inner wall of the rotating knob (302); and the outer wall of the other end of the rotating rod (301) is fixedly connected to the inner wall of the rotating gear shaft (303).
5. The laser beam expander module that is easy to adjust according to claim 4, characterized in that: The negative lens mechanism (4) is composed of a negative transparent tooth plate (401), a negative transparent connecting plate (402), a negative lens (403) and a negative transparent limiting plate (404); the top of the negative transparent tooth plate (401) is meshingly connected to the bottom of the outer wall of the rotating gear shaft (303), and one side of the negative transparent tooth plate (401) is fixedly connected to one side of the negative transparent connecting plate (402); the back side of the negative transparent connecting plate (402) is fixedly connected to the front side of the outer wall of the negative lens (403), and the back side of the outer wall of the negative lens (403) is fixedly connected to the front side of the negative transparent limiting plate (404).
6. The easily adjustable laser beam expander module according to claim 4, characterized in that: The positive lens mechanism (5) is composed of a positive transparent tooth plate (501), a positive transparent connecting plate (502), a positive lens (503) and a positive transparent limiting plate (504); the bottom of the positive transparent tooth plate (501) is meshingly connected with the top of the outer wall of the rotating gear shaft (303), and one side of the positive transparent tooth plate (501) is fixedly connected with one side of the positive transparent connecting plate (502); the back side of the positive transparent connecting plate (502) is fixedly connected with the front side of the outer wall of the positive lens (503), and the back side of the outer wall of the positive lens (503) is fixedly connected with the front side of the positive transparent limiting plate (504).