Cross light source

Abstract

The utility model relates to a cross line light source which comprises a laser tube, a pair of cylindrical mirrors and a cylindrical mirror base used for fixing the pair of cylindrical mirrors. The system also comprises an aspherical lens and a diaphragm. The diaphragm comprises a substrate, and the substrate is provided with a pair of square holes. Laser output by the laser tube sequentially passes through the aspherical lens and a pair of square holes of the diaphragm and then is divided into a pair of laser beams, and the pair of laser beams are emitted out through the pair of cylindrical mirrors respectively and form a cross curve on a projected target. The laser beam collimated by the aspherical lens is divided into two small square laser beams by the diaphragm, so that stray light at the edge of the collimated laser beam is filtered out, the problem of large quality difference of the laser beams is solved, and the quality of the cross curve generated by the line light source is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser light source technical field, concretely relates to a cross line light source. BACKGROUND

[0002] Chinese patent document CN201412731Y discloses a cross line laser line projector light source, including light outlet, four adjusting seams, long cylindrical mirror mounting hole, four end face adjusting holes, short cylindrical mirror mounting hole and two side face adjusting holes, wherein the adjusting seam is two-way adjusting seam, adjusting seam a, b are located in the same plane, adjusting seam is located in the same plane, the opening direction of adjusting seam a, b and the opening direction of adjusting seam c, d are perpendicular to each other, and the reserved part between the two adjusting seams of the same plane is just corresponding with the end face adjusting hole;Long cylindrical mirror mounting hole is eccentrically arranged, short cylindrical mirror mounting hole is vertically designed with long cylindrical mirror mounting hole, and is located in the same plane.

[0003] The cylindrical mirror cross line light source of the above-mentioned existing laser line marker has the following defects:

[0004] 1、the adjusting seam 2a and 2b in the above-mentioned document are located in the same plane, adjusting seam 2c and 2d are located in the same plane, according to the attached Figures 1-5 It can be known that the four adjusting seams are horizontally distributed, which is not conducive to accurately adjusting the long and short cylindrical mirrors to ensure that the light is perpendicular;2、the light source is of an integral structure and cannot be maintained;3、there is stray light at the edge of the laser beam output by the laser tube, resulting in large quality difference of the generated cross line. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a cross line light source, and the cross line generated by the light source has high quality.

[0006] In order to achieve the above-mentioned task, the utility model adopts the following technical scheme: a cross line light source, including a laser tube, a pair of cylindrical mirrors and a cylindrical mirror seat for fixing the pair of cylindrical mirrors;Further comprising: aspherical lens, diaphragm;The diaphragm includes a substrate, and the substrate is provided with a pair of holes;The laser output by the laser tube is divided into a pair of laser beams in turn through the aspherical lens and a pair of holes of the diaphragm, and the pair of laser beams is respectively emitted through the pair of cylindrical mirrors and forms a cross line on the target to be projected. The diaphragm divides the collimated laser beam of the aspherical lens into two small square laser beams to filter out the stray light at the edge of the collimated laser beam, solves the problem of large quality difference of the light beam, and makes the cross line generated by the light source have high quality.

[0007] A preferred embodiment: The cylindrical mirror mount is provided with transversely distributed lateral adjustment slots and longitudinally distributed longitudinal adjustment slots; the cylindrical mirror mount is provided with multiple straightness adjustment screw holes perpendicularly penetrating the plane of the transverse adjustment slots, and multiple perpendicularity adjustment screw holes perpendicularly penetrating the plane of the longitudinal adjustment slots, with adjustment screws installed in the straightness adjustment screw holes and perpendicularity adjustment screw holes. By providing longitudinal and transverse adjustment slots, it is convenient to precisely adjust the pair of cylindrical mirrors to ensure that the light rays are perpendicular.

[0008] Preferred embodiment: The pair of cylindrical mirrors are disposed in the mounting holes within the cylindrical mirror holder and are perpendicular to each other, and the aperture is disposed in the bottom cavity of the cylindrical mirror holder.

[0009] A preferred embodiment: the aspherical lens is disposed in the mounting groove at the top of the lens barrel, the laser tube is disposed in the laser tube holder, the laser tube holder is disposed in the inner cavity at the bottom of the lens barrel, and together they form a mirror assembly; the cylindrical lens holder is disposed at the top of the lens barrel. This structure, where the cylindrical lens holder is separate from the lens barrel, allows for disassembly during maintenance, improving the maintainability of the light source.

[0010] The technical effects of this utility model are as follows: (1) The crosshair light source of this utility model has a pair of holes on the aperture; the laser output from the laser tube passes through the aspherical lens and the pair of holes of the aperture in sequence and is split into a pair of laser beams with square cross sections to filter out stray light at the edge of the collimated laser beam, thus solving the problem of large beam quality difference and making the crosshair generated by the line light source of high quality. (2) By setting longitudinal and transverse adjustment slots, it is convenient to accurately adjust the pair of cylindrical mirrors to ensure that the light is perpendicular. (3) The structure of separating the cylindrical mirror base from the mirror tube is adopted, which can be disassembled during maintenance, thus improving the maintainability of the light source. Attached Figure Description

[0011] Figure 1 An exploded view of the crosshair light source in the embodiment;

[0012] Figure 2 This is a schematic diagram of the planar structure of the aperture in the embodiment;

[0013] Figure 3 This is a schematic diagram of the cylindrical mirror mount in an embodiment;

[0014] Figure 4 for Figure 3 A structural diagram of the top surface of the cylindrical mirror mount;

[0015] Figure 5 for Figure 4 A schematic diagram of the transverse cross-section of the cylindrical mirror mount;

[0016] Figure 6 This is a schematic diagram of the longitudinal cross-sectional structure of the crosshair light source. Detailed Implementation

[0017] As Figures 1-6 The cross line light source of the embodiment comprises a laser tube 10, a laser tube base 9, a lens barrel 8, an aspheric lens 7, a diaphragm 5, a pair of cylindrical mirrors 2 and a cylindrical mirror base 4 for fixing the pair of cylindrical mirrors 2, the pair of cylindrical mirrors 2 are arranged in the mounting holes in the cylindrical mirror base 4 and are perpendicular to each other. The diaphragm 5 is arranged in the bottom inner cavity of the cylindrical mirror base 4.

[0018] The diaphragm 5 comprises a base plate, and a pair of holes 50 are arranged on the base plate; the laser output by the laser tube 10 is divided into a pair of laser beams after passing through the aspheric lens 7 and the pair of holes 50 of the diaphragm 5 in sequence, the pair of laser beams are emitted through the pair of cylindrical mirrors 2 respectively, and a cross line is formed on the target to be projected. The laser beam collimated by the aspheric lens is divided into two small square laser beams by the diaphragm, so as to filter out the stray light at the edge of the collimated laser beam, solve the problem of large difference in beam quality, and make the cross line generated by the line light source have high quality.

[0019] A pair of transverse adjusting slots 41 and a longitudinal adjusting slot 42 are arranged on the cylindrical mirror base 4; a plurality of straightness adjusting screw holes 43 vertically penetrating the plane where the transverse adjusting slots 41 are arranged and a plurality of perpendicularity adjusting screw holes 44 vertically penetrating the plane where the longitudinal adjusting slot 42 is arranged are arranged on the cylindrical mirror base 4, the straightness adjusting screw holes 43 are provided with straightness adjusting screws 1, and the pair of perpendicularity adjusting screw holes 44 are respectively provided with a first perpendicularity adjusting screw 3 and a second perpendicularity adjusting screw 6. The longitudinal and transverse adjusting slots are arranged, which is beneficial to accurately adjusting the pair of cylindrical mirrors, so as to ensure that the light is perpendicular.

[0020] The aspheric lens 7 is arranged in the mounting groove at the top of the lens barrel 8, the laser tube 10 is arranged in the laser tube base 9, the laser tube base 9 is arranged in the bottom inner cavity of the lens barrel 8 and constitutes a lens barrel assembly; and the cylindrical mirror base 4 is arranged at the top of the lens barrel 8 (generally, the lens barrel 8 and the cylindrical mirror base 4 are bonded by glue). The structure that the cylindrical mirror base is separated from the lens barrel can be disassembled during maintenance, and the maintainability of the light source is improved.

[0021] Obviously, the above embodiment is only an example for clearly illustrating the present application, and is not a limitation on the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. It is not necessary and impossible to enumerate all the embodiments. The changes or variations that belong to the spirit of the present application and are extended obviously still fall within the protection scope of the present application.

Claims

1. A cross-hair light source, comprising: The laser tube (10), a pair of cylindrical mirrors (2) and a cylindrical mirror seat (4) for fixing the cylindrical mirror (2); characterized in that it further comprises an aspherical lens (7) and a diaphragm (5); the diaphragm (5) comprises a base plate provided with a pair of holes (50); the laser output by the laser tube (10) passes through the aspherical lens (7) and the pair of holes (50) of the diaphragm (5) in sequence and is divided into a pair of laser beams, which are respectively emitted through the pair of cylindrical mirrors (2) and form a cross line on the target to be projected.

2. The cross-hair light source of claim 1, wherein, The cylindrical mirror seat (4) is provided with transversely distributed transverse adjustment slots (41) and longitudinally distributed longitudinal adjustment slots (42); the cylindrical mirror seat (4) is provided with a plurality of straightness adjustment screw holes (43) vertically penetrating the plane where the transverse adjustment slots (41) are located, and a plurality of perpendicularity adjustment screw holes (44) vertically penetrating the plane where the longitudinal adjustment slots (42) are located; the straightness adjustment screw holes (43) and the perpendicularity adjustment screw holes (44) are provided with adjustment screws.

3. The cross-hair light source of claim 2, wherein, The pair of cylindrical mirrors (2) are arranged in the mounting holes in the cylindrical mirror seat (4) and are perpendicular to each other, and the diaphragm (5) is arranged in the bottom inner cavity of the cylindrical mirror seat (4).

4. The cross-hair light source of one of claims 1 to 3, wherein The aspherical lens (7) is arranged in the mounting slot at the top of the lens barrel (8), the laser tube (10) is arranged in the laser tube seat (9), the laser tube seat (9) is arranged in the bottom inner cavity of the lens barrel (8) and constitutes a lens barrel assembly; and the cylindrical mirror seat (4) is arranged at the top of the lens barrel (8).

Images