A laser module device of a laser line projector

Abstract

The utility model belongs to the field of theodolite technology, concretely relates to a laser module device of laser theodolite, including main mirror barrel, the right -hand member of main mirror barrel is provided with the connecting flange, the left end is provided with glass tube, the glass tube is connected with the taper mirror in, is provided with first laser point module on the connecting flan, the vertical setting of main mirror barrel upper end has the auxiliary mirror barrel, is provided with second laser point module in the auxiliary mirror barrel, makes main mirror barrel, first laser point module, second laser point module three form T shape structure, still is provided with coating lens and lens lens seat at the intersection of three, lens lens seat sets up in main mirror barrel, lens lens seat is horizontally equipped with the light transmission hole, and the upper portion of lens lens seat is forty -five degree inclined plane, and optical lens is bonded on the inclined plane of lens lens seat, and full coverage is on the light transmission hole. The utility model discloses a laser module device of laser theodolite, when two light sources are the same color, can make the light ray of taper mirror reflection project on the brightness uniformity of being projected on the surface, and when light source is different color, can project three color light rays.

Description

Technical Field

[0001] This utility model belongs to the technical field of laser projection devices, specifically relating to a laser module device for a laser projection device. Background Technology

[0002] A laser line projector is an engineering surveying device that emits a visible beam of light through a laser diode, which is then guided by a prism light-guiding system to form a fan-shaped laser surface. This instrument features automatic leveling and can emit vertical, horizontal, and intersecting laser lines, replacing traditional levels and chalk lines. It is primarily used in building construction, equipment installation, and interior decoration to achieve precise wall vertical calibration, pipeline rack positioning, and other operational needs.

[0003] Existing single-source lasers emit light in an elliptical pattern when projected onto an object. After being diffused into a line by a conical lens, uneven brightness occurs. Utility model patent CN213238918U discloses an optical system and a laser line marker. Specifically, the laser line marker includes a first light-emitting element and a second light-emitting element, emitting first and second beams of different colors. A control unit, connected to the light-emitting elements, controls the illumination of the first and second light-emitting elements. The optical components include a semi-transparent mirror fixed in the optical path of the first and second beams. The first beam passes through the semi-transparent mirror to emit a third beam; the second beam is refracted by the semi-transparent mirror to emit a fourth beam. This allows for switching the color of the laser line marker. However, in this patent, the first and second beams still emit fan-shaped light, causing power loss. The semi-transparent mirror further exacerbates this loss, causing the light to be focused by a convex lens and extended at a certain angle instead of being emitted parallel. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the background technology mentioned above, and to provide a laser module device for a laser line projector. By having two vertical laser point modules emit light simultaneously, when the light sources are of the same color, the light spots overlapping on the conical mirror are arranged in a cross pattern, which can make the light reflected by the conical mirror projected onto the projected surface with uniform brightness. When the two laser point light sources are of different colors, the light projected simultaneously will become a third color after mixing. By controlling the opening and closing of the two different color light sources, three-color marking can be achieved.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a laser module device for a laser line projector, comprising a main lens barrel, a connecting flange at the right end of the main lens barrel, a glass tube at the left end, a conical lens connected inside the glass tube, a first laser point module on the connecting flange, a secondary lens barrel vertically arranged at the upper end of the main lens barrel, and a second laser point module arranged inside the secondary lens barrel, so that the main lens barrel, the first laser point module, and the second laser point module form a T-shaped structure, and a coated lens and a lens mount are arranged at the intersection of the three, the lens mount is arranged inside the main lens barrel, and the lens mount has a horizontally opened light-transmitting hole, so that the light from the first laser point module passes through the light-transmitting hole to reach the main lens barrel, the upper part of the lens mount is a 45-degree inclined surface, and an optical lens is bonded to the inclined surface of the lens mount and completely covers the light-transmitting hole, so as to emit the light from the second laser point module into the main lens barrel.

[0006] Furthermore, the first laser dot module consists of a laser diode, a circuit board, an optical lens, a gasket, a copper sleeve, and a copper cap. The copper sleeve is installed on the inner wall of the connecting flange. The right end of the copper sleeve is connected to the circuit board and the laser diode, and the left end is connected to the gasket and the optical lens. A copper cap is provided on the left end of the connecting flange, and the copper cap is connected to the copper sleeve to fix the optical lens inside the connecting flange.

[0007] Furthermore, the second laser dot module consists of a laser diode, a circuit board, an optical lens, a gasket, a copper sleeve, and a copper cap. The copper sleeve is installed on the inner wall of the secondary lens barrel. The upper end of the copper sleeve is connected to the circuit board and the laser diode, and the lower end is connected to the gasket and the optical lens. A copper cap is provided at the lower end of the connecting flange, and the copper cap is connected to the copper sleeve to fix the optical lens inside the connecting flange.

[0008] Furthermore, the main lens barrel and the secondary lens barrel are detachably connected. The main lens barrel at the connection point is provided with an inclined surface, and the corresponding secondary lens barrel is provided with a spherical surface. The spherical surface and the inclined surface are in contact and connected. The relative position of the main lens barrel and the secondary lens barrel can be adjusted by tightening or loosening the screw connection.

[0009] Furthermore, the coated lens is a transparent plane mirror.

[0010] Furthermore, the optical lens is either a single aspherical mirror or a double spherical mirror.

[0011] The beneficial effects of this utility model are: 1) This utility model emits light simultaneously through two vertical laser point modules, which can enhance the brightness of the light and make it evenly dispersed for easy line measurement. The optical lens adopts an aspherical mirror or two parallel spherical mirrors to make the light transmit in an approximately parallel state to reduce attenuation loss. At the same time, the use of coated lenses can enhance the transmittance and reflectance of light, and is suitable for projection surfaces of different colors indoors and outdoors.

[0012] 2) When two vertical laser point sources are the same color, the light spots overlapping on the cone mirror are arranged in a cross pattern, which can make the light reflected by the cone mirror projected onto the surface with uniform brightness; when the two laser point sources are different colors, the light projected at the same time will become a third color after mixing. By controlling the opening and closing of the two different colored light sources, three-color marking can be achieved. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a half-sectional view of the present invention.

[0015] Figure 3 This is a schematic diagram of the secondary lens tube and lens mount.

[0016] Figure 4 for Figure 2 Enlarged view of section B in the middle.

[0017] In the diagram: 1. Main lens barrel; 2. Connecting flange; 3. Glass tube; 4. Conical lens; 5. First laser point module; 6. Secondary lens barrel; 7. Second laser point module; 8. Coated lens; 9. Lens mount; 10. Light transmission hole; 11. Laser diode; 12. Circuit board; 13. Optical lens; 14. Gasket; 15. Copper sleeve; 16. Copper cap; 17. Bevel; 18. Spherical surface; 19. Screw. Detailed Implementation

[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0019] Example: Figure 1-4 As shown, the laser module device of the laser line projector of this utility model includes a main lens barrel 1, a connecting flange 2 at the right end of the main lens barrel 1, a glass tube 3 at the left end, a conical lens 4 connected inside the glass tube 3, a first laser point module 5 installed on the connecting flange 2, a secondary lens barrel 6 vertically arranged at the upper end of the main lens barrel 1, and a second laser point module 7 installed inside the secondary lens barrel 6, so that the main lens barrel 1, the first laser point module 5, and the second laser point module 7 form a T-shaped structure, and a coated lens 8 and a lens mount 9 are arranged at the intersection of the three. The base 9 is fastened to the main lens barrel 1 by screws 19. The lens base 9 has a horizontally open light-transmitting hole 10, which allows the light from the first laser point module 5 to pass through the light-transmitting hole 10 to reach the main lens barrel 1. The upper part of the lens base 9 is a 45-degree inclined surface 17. The optical lens 13 is bonded to the inclined surface 17 of the lens base 9 and completely covers the light-transmitting hole 10, so as to emit the light from the second laser point module 7 into the main lens barrel 1. The coated lens 8 is a transparent plane mirror, which can enhance the light transmittance of the first laser point module 5 and the reflectivity of the second laser point module 7.

[0020] The first laser dot module 5 consists of a laser diode 11, a circuit board 12, an optical lens 13, a gasket 14, a copper sleeve 15, and a copper cap 16. The copper sleeve 15 is installed on the inner wall of the connecting flange 2. The right end of the copper sleeve 15 is connected to the circuit board 12 and the laser diode 11, and the left end is connected to the gasket 14 and the optical lens 13. The left end of the connecting flange 2 is connected to the copper cap 16, which is connected to the copper sleeve 15, so that the optical lens 13 is fixed inside the connecting flange 2. The optical lens 13 is a double spherical 18 lens, which is kept parallel so that the light is emitted parallel to the coated lens 8 after passing through two layers.

[0021] The second laser dot module 7 consists of a laser diode 11, a circuit board 12, an optical lens 13, a gasket 14, a copper sleeve 15, and a copper cap 16. The copper sleeve 15 is installed on the inner wall of the secondary lens barrel 6. The upper end of the copper sleeve 15 is connected to the circuit board 12 and the laser diode 11, and the lower end is connected to the gasket 14 and the optical lens 13. The lower end of the connecting flange 2 is connected to the copper cap 16. The copper cap 16 is connected to the copper sleeve 15, so that the optical lens 13 is fixed in the connecting flange 2. The optical lens 13 is a double spherical 18 mirror, and it is kept parallel so that the light is emitted parallel to the coated lens 8 after passing through two times.

[0022] The main lens barrel 1 and the secondary lens barrel 6 are fastened together by screws 19. The main lens barrel 1 at the connection point is provided with a bevel 17, and the corresponding secondary lens barrel 6 is provided with a spherical surface 18. The spherical surface 18 and the bevel 17 are in contact and connected. The relative position of the main lens barrel 1 and the secondary lens barrel 6 is adjusted by tightening or loosening the connection point of the screws 19.

[0023] In practical use, the first laser dot module 5 is installed at the rear end of the main lens barrel 1 and fixed by the connecting flange 2, so that the inner walls of the two are kept horizontally aligned. The secondary lens barrel 6 is fastened to the upper end of the main lens barrel 1 by four screws 19, and the second laser dot module 7 is installed in the secondary lens barrel 6, so that the first laser dot module 5 is perpendicular to the main lens barrel 1. The glass tube 3 and the conical lens 4 are glued to the front end of the main lens barrel 1. At the same time, the lens mount 9 is fastened to the main lens barrel 1 by screws 19. The left side of the lens mount 9 is a 45-degree inclined surface 17, and a horizontally penetrating light-transmitting hole 10 is opened in the center of the right side. The coated lens 8 is glued and fixed on the inclined surface 17 of the lens mount 9, completely covering the light-transmitting hole 10, so that the coated lens 8 is at a 45-degree angle and is located at the intersection of the first laser dot module 5 and the second laser dot module 7.

[0024] Two perpendicular laser point sources illuminate the center of the cone mirror 4 through transmission, refraction, or emission from the head, causing the light to be emitted in all directions perpendicular to the axis of the cone mirror 4. When the two laser point sources are the same color, the light superimposed on the cone mirror 4 is nearly circular and brighter, and the light emitted in all directions is more uniform. When the two laser point sources are different colors, the light projected at the same time will become a third color after mixing. By controlling the opening and closing of the two different colored light sources, three-color markings can be achieved, which is especially suitable for markings on projection surfaces of different colors.

[0025] This invention uses two vertical laser point modules to emit light simultaneously, which can enhance the brightness of the light and make it evenly dispersed for easy marking measurement. The optical lens uses an aspherical lens or two parallel spherical lenses to transmit the light in a nearly parallel state, reducing attenuation and loss. At the same time, the use of coated lenses can enhance the transmittance and reflectance of the light, making it suitable for projection surfaces of different colors indoors and outdoors.

[0026] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A laser module device for a laser line projector, characterized in that: The system includes a main lens barrel, with a connecting flange at the right end and a glass tube at the left end. A conical lens is connected inside the glass tube. A first laser dot module is mounted on the connecting flange. A secondary lens barrel is vertically mounted on the upper end of the main lens barrel, and a second laser dot module is mounted inside the secondary lens barrel. The main lens barrel, the first laser dot module, and the second laser dot module form a T-shaped structure. A coated lens and a lens mount are also provided at the intersection of the three components. The lens mount is located inside the main lens barrel and has a horizontally opening light-transmitting hole, allowing the light from the first laser dot module to pass through the light-transmitting hole to reach the main lens barrel. The upper part of the lens mount is a 45-degree inclined surface, and an optical lens is bonded to the inclined surface of the lens mount, completely covering the light-transmitting hole, and emitting the light from the second laser dot module into the main lens barrel.

2. The laser module device of a laser line projector according to claim 1, characterized in that: The first laser dot module consists of a laser diode, a circuit board, an optical lens, a gasket, a copper sleeve, and a copper cap. The copper sleeve is installed on the inner wall of the connecting flange. The right end of the copper sleeve is connected to the circuit board and the laser diode, and the left end is connected to the gasket and the optical lens. A copper cap is provided on the left end of the connecting flange, and the copper cap is connected to the copper sleeve to fix the optical lens inside the connecting flange.

3. The laser module device of a laser line projector according to claim 1, characterized in that: The second laser dot module consists of a laser diode, a circuit board, an optical lens, a gasket, a copper sleeve, and a copper cap. The copper sleeve is installed on the inner wall of the secondary lens barrel. The upper end of the copper sleeve is connected to the circuit board and the laser diode, and the lower end is connected to the gasket and the optical lens. A copper cap is provided at the lower end of the connecting flange, and the copper cap is connected to the copper sleeve to fix the optical lens inside the connecting flange.

4. The laser module device of a laser line projector according to claim 1, characterized in that: The main lens barrel and the secondary lens barrel are detachably connected. The main lens barrel at the connection point is provided with an inclined surface, and the corresponding secondary lens barrel is provided with a spherical surface. The spherical surface and the inclined surface are in contact and connected. The relative position of the main lens barrel and the secondary lens barrel can be adjusted by tightening or loosening the screw connection.

5. The laser module device of a laser line projector according to claim 1, characterized in that: The coated lens is a transparent plane mirror.

6. The laser module device of a laser line projector according to any one of claims 2 or 3, characterized in that: The optical lens is either a single aspherical lens or a double spherical lens.

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