Auxiliary positioning device and method of invisible or not easily observable laser line

Abstract

An auxiliary positioning device of invisible or unobservable laser line relates to the field of laser line positioning. It comprises front and rear mounted auxiliary laser generator and auxiliary laser lens, front and rear mounted measuring laser generator and measuring laser lens, auxiliary laser generator and auxiliary laser lens assembly and measuring laser generator and measuring laser lens assembly are in orthogonal relationship, wherein auxiliary laser lens and measuring laser lens are respectively arranged at 45 degrees with laser combiner, laser combiner can project invisible or unobservable laser line and auxiliary laser line in parallel relationship to the surface of the object, at the same time, due to the same source of power supply of measuring laser generator and auxiliary laser generator, there is still observable auxiliary laser line under the condition that measuring laser line is not observed, so that the user can be reminded that the laser emitter has worked, and direct vision of the laser emitter is avoided.

Description

Technical Field

[0001] This invention relates to the field of laser line positioning, and in particular to an auxiliary positioning device and method for laser lines that are invisible or difficult to observe. Background Technology

[0002] Laser scanning is a common measurement and modeling method in modern industrial production, scientific research, and service industries. Different wavelengths of laser light can be used for different objects being measured, achieving refraction and reflection before entering the receiver for observation, thus achieving measurement or 2D modeling purposes. However, due to the limited wavelength range of visible light, and the possibility that lasers outside the visible light range may be used in practical applications, or that the laser wavelength may be absorbed by the operator's glasses or goggles, making it impossible to observe (for example, wearing blue light blocking glasses prevents the observation of certain wavelengths of blue laser light, even though they are visible to the naked eye).

[0003] In existing models, to ensure users can effectively observe the laser line's location, it's often necessary to use easily observable and non-absorbable wavelengths, such as red light. The wavelength range is limited, and operators rarely wear red-light-absorbing glasses, thus the laser line can be observed. However, due to the limited wavelength range of red light, the range of usable measurement surfaces is also greatly restricted; generally, it can only measure strictly opaque surfaces such as metal, wood, and stone. To address the limited measurement range of red light, blue laser products are available on the market, but users may wear blue-light-blocking glasses, preventing them from observing the laser line. The inability to observe the laser line poses several risks, such as not being able to determine if the equipment is working properly; not being able to correctly judge whether the laser is emitting, causing other personnel to look directly at the laser with their naked eyes, potentially leading to retinal damage; and not being able to accurately position the laser line to the desired observation location, resulting in inaccurate measurement and unsatisfactory results. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an auxiliary positioning device for laser lines that are invisible or difficult to observe.

[0005] The technical method employed in this invention is as follows: an auxiliary positioning device for laser lines that are invisible or difficult to observe. Its key technical features include an auxiliary laser generator, an auxiliary laser lens, a laser beam combiner, a measuring laser generator, and a measuring laser lens. The auxiliary laser generator for generating the auxiliary laser line and the auxiliary laser lens capable of refracting the auxiliary laser line into a fan-shaped laser line are connected in series. The measuring laser generator for generating the measuring laser line and the measuring laser lens capable of refracting the measuring laser line into a fan-shaped laser line are also connected in series. The auxiliary laser lens and the measuring laser lens are respectively positioned at a 45-degree angle to the laser beam combiner. The laser beam combiner uses the projected auxiliary laser line to indicate the presence of the refracted measuring laser line.

[0006] In the above scheme, the series structure consisting of the auxiliary laser generator and the auxiliary laser lens is in two sets. These two sets of orthogonal series structures are set at an angle to the laser beam combiner and the laser beam combiner projects two parallel auxiliary laser lines. The measurement laser line refracted by the laser beam combiner falls between the two parallel auxiliary laser lines.

[0007] In the above scheme, the laser beam combiner is provided with an opaque area, and the auxiliary laser line generated by the auxiliary laser generator and the auxiliary laser lens is projected into two segments of auxiliary laser line with a middle discontinuity through the above opaque area.

[0008] In the above scheme, the width of the two intermediate interrupted auxiliary laser lines depends on the width of the non-transmissible region on the laser beam combiner.

[0009] In the above scheme, the auxiliary laser lens and the measuring laser lens are respectively set at a 45-degree angle to the laser beam combiner.

[0010] In the above scheme, the auxiliary laser generator and the measuring laser generator are powered by the same power supply or the same source power supply, so that the auxiliary laser line and the measuring laser line work simultaneously.

[0011] A method for assisting in the positioning of an invisible or difficult-to-observe laser line, the key technical points of which include the following steps:

[0012] The measuring laser emitted by the measuring laser generator is reflected by the laser beam combiner onto the object being measured to form a contour line;

[0013] The auxiliary laser line emitted by the auxiliary laser generator is refracted by the laser beam combiner and is parallel to or overlaps with the measurement laser line;

[0014] The presence of the refracted measurement laser line is indicated by the projected auxiliary laser line:

[0015] If the auxiliary laser line after transmission through the laser beam combiner is two parallel lines, then the measuring laser line is located between the two parallel lines.

[0016] If it is an auxiliary laser line transmitted through a laser beam combiner, then the measuring laser line is divided into two segments, and the measuring laser line is located at the division position between the two segments.

[0017] The beneficial effects of this invention are as follows: This auxiliary positioning device for invisible or difficult-to-observe laser lines includes an auxiliary laser generator and an auxiliary laser lens installed in series, and a measuring laser generator and a measuring laser lens installed in series as well. The auxiliary laser lens and the measuring laser lens are respectively positioned at a 45-degree angle to a laser beam combiner. The laser beam combiner can project the invisible or difficult-to-observe laser line and the auxiliary laser line onto the object surface in a parallel relationship. Simultaneously, since the measuring laser generator and the auxiliary laser generator share the same power source, an observable auxiliary laser line can still be present even when the measuring laser line is not observable. Therefore, it can alert the user that the laser emitter is working, preventing them from looking directly at the laser emitter. Furthermore, by selecting an appropriate laser beam combiner, the positions of the auxiliary laser generator and the auxiliary laser lens, and the measuring laser generator and the measuring laser lens, can be interchanged; that is, the invisible or difficult-to-observe laser line becomes transmitted light, and the visible auxiliary laser line becomes visible light. It also features flexible application. Attached Figure Description

[0018] To more clearly illustrate the technical methods in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the auxiliary positioning device structure for laser lines that are invisible or difficult to observe in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the auxiliary positioning device for laser lines that are invisible or difficult to observe in Embodiment 1 of the present invention;

[0021] Figure 3 This is a schematic diagram of the auxiliary positioning device for laser lines that are invisible or difficult to observe in Embodiment 2 of the present invention;

[0022] The numbers in the diagram are explained as follows: 1. Auxiliary laser generator, 2. Auxiliary laser lens, 3. Laser beam combiner, 4. Measuring laser generator, 5. Measuring laser lens, 6. Object under test. Detailed Implementation

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the following description is provided in conjunction with the accompanying drawings. Figures 1-3 The present invention will be further described in detail below with reference to specific embodiments.

[0024] Example 1:

[0025] The auxiliary positioning device for invisible or difficult-to-observe laser lines used in this embodiment includes two auxiliary laser generators 1, two auxiliary laser lenses 2, a laser beam combiner 3, a measuring laser generator 4, and a measuring laser lens 5. Each auxiliary laser generator 1 and each auxiliary laser lens 2 is installed in series. The auxiliary laser generator 1 emits a laser beam clearly visible to the naked eye, and the auxiliary laser lens 2 ensures that the laser beam emitted by the auxiliary laser generator 1 is refracted into a fan-shaped laser line. The two auxiliary laser lenses 2 should be installed horizontally so that the two emitted visible laser beams are also horizontal. The measuring laser generator 4 and the measuring laser lens 5 are installed in series; the measuring laser generator 4 emits a measuring laser, which may be an invisible ultraviolet laser or a difficult-to-observe blue laser. The measuring laser lens 5 refracts the laser beam emitted by the measuring laser generator 4... The emitted measuring laser is refracted into a fan shape to form a contour line on the object under test 6. The auxiliary laser generator 1 and auxiliary laser lens 2, and the measuring laser generator 4 and measuring laser lens 5 should be orthogonally installed to ensure that the emitted laser lines meet in the same direction. The laser beam combiner 3 is installed at a 45-degree angle to the auxiliary laser generator 1 and auxiliary laser lens 2, and the measuring laser generator 4 and measuring laser lens 5 to ensure that the lasers emitted by the auxiliary laser generator 1 and auxiliary laser lens 2, the measuring laser generator 4 and measuring laser lens 5 fall accurately on the laser beam combiner 3. The laser beam combiner 3 can ensure that the lasers emitted by the auxiliary laser generator 1 and auxiliary laser lens 2 are directly projected out, while the lasers emitted by the measuring laser generator 4 and measuring laser lens 5 are refracted out. The positions of the auxiliary laser generator 1 and auxiliary laser lens 2, the measuring laser generator 4 and measuring laser lens 5 are adjusted to ensure that the transmitted and refracted laser lines are parallel, and that the refracted measuring laser line falls accurately within the two transmitted laser lines. The auxiliary laser generator 1 and the measuring laser generator 4 are powered by the same power supply or the same source power supply to ensure that the auxiliary laser and the measuring laser work simultaneously.

[0026] Example 2:

[0027] This embodiment employs an auxiliary positioning device for invisible or difficult-to-observe laser lines, comprising an auxiliary laser generator 1, an auxiliary laser lens 2, a laser beam combiner 3, a measuring laser generator 4, and a measuring laser lens 5. The auxiliary laser generator 1 and auxiliary laser lens 2 are connected in series. The auxiliary laser generator 1 emits a laser beam clearly visible to the naked eye, and the auxiliary laser lens 2 ensures that the laser emitted by the auxiliary laser generator 1 is refracted into a fan-shaped laser line. The measuring laser generator 4 and measuring laser lens 5 are connected in series. The measuring laser generator 4 emits a measuring laser, which may be an invisible ultraviolet laser or a difficult-to-observe blue laser. The measuring laser lens 5 refracts the measuring laser emitted by the measuring laser generator 4 into a fan-shaped laser line to form a contour line on the object being measured. The auxiliary laser generator 1 and auxiliary laser lens 2, and the measuring laser generator 4 and measuring laser lens 5 should be orthogonally installed, ensuring that the emitted laser lines meet in the same direction. The laser beam combiner 3 is installed at a 45-degree angle to the auxiliary laser generator 1 and auxiliary laser lens 2, and the measuring laser generator 4 and measuring laser lens 5, respectively. This ensures that the lasers emitted by the auxiliary laser generator 1 and auxiliary laser lens 2, and the measuring laser generator 4 and measuring laser lens 5, accurately fall onto the laser beam combiner 3. The laser beam combiner 3 ensures that the lasers emitted by the auxiliary laser generator 1 and auxiliary laser lens 2 are directly projected out, while the lasers emitted by the measuring laser generator 4 and measuring laser lens 5 are refracted out. The laser beam combiner 3 has an opaque region 31, ensuring that the visible laser lines emitted by the auxiliary laser generator 1 and auxiliary laser lens 2 have a break in the middle after transmission, that is, one laser line becomes two laser lines. The width of the middle break depends on the width of the opaque region on the laser beam combiner 3. The positions of the auxiliary laser generator 1 and auxiliary laser lens 2, and the measuring laser generator 4 and measuring laser lens 5 are adjusted to ensure that the transmitted and refracted laser lines coincide. The auxiliary laser generator 1 and the measuring laser generator 4 are powered by the same power supply or a common power source to ensure that the auxiliary laser and the measuring laser work simultaneously.

[0028] Example 3:

[0029] The difference between this embodiment and Embodiments 1 and 2 is that the positions of the auxiliary laser generator 1 and auxiliary laser lens 2, and the measuring laser generator 4 and measuring laser lens 5 relative to the laser beam combiner 3 are interchanged. That is, the invisible or difficult-to-see laser is transmitted light, and the visible auxiliary laser line is visible light.

[0030] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An auxiliary positioning device for an invisible or difficult-to-observe laser line, characterized in that, The system includes an auxiliary laser generator (1), an auxiliary laser lens (2), a laser beam combiner (3), a measuring laser generator (4), and a measuring laser lens (5). The auxiliary laser generator (1) for generating the auxiliary laser line and the auxiliary laser lens (2) for refracting the auxiliary laser line into a fan-shaped laser line are connected in series. The measuring laser generator (4) for generating the measuring laser line and the measuring laser lens (5) for refracting the measuring laser line into a fan-shaped laser line are connected in series. The auxiliary laser lens (2) and the measuring laser lens (5) are respectively set at a 45-degree angle to the laser beam combiner (3). The laser beam combiner (3) uses the transmitted auxiliary laser line to indicate the presence of the refracted measuring laser line. The auxiliary laser generator (1) and the measuring laser generator (4) are powered by the same power supply or a common power source so that the auxiliary laser line and the measuring laser line work simultaneously. The series structure consisting of the auxiliary laser generator (1) and the auxiliary laser lens (2) consists of two sets. These two sets of series structures are set at an angle to the laser beam combiner (3) and the laser beam combiner (3) projects two parallel auxiliary laser lines. The measurement laser line refracted by the laser beam combiner (3) falls between the two parallel auxiliary laser lines. Alternatively, the laser beam combiner (3) may have an opaque region (31) on it, through which the auxiliary laser line generated by the auxiliary laser generator (1) and the auxiliary laser lens (2) is projected into two segments of auxiliary laser line with a middle interruption via the opaque region (31).

2. The auxiliary positioning device for invisible or difficult-to-observe laser lines as described in claim 1, characterized in that, The width of the two intermediate interrupted auxiliary laser lines depends on the width of the non-transmissible region (31) on the laser beam combiner.

3. The auxiliary positioning device for invisible or difficult-to-observe laser lines as described in claim 1, characterized in that, The auxiliary laser lens (2) and the measuring laser lens (5) are respectively set at a 45-degree angle to the laser beam combiner (3).

4. An auxiliary positioning method for an invisible or difficult-to-observe laser line, implemented using the device as described in claim 1, characterized in that, Includes the following steps: The measuring laser emitted by the measuring laser generator is reflected by the laser beam combiner and forms a contour line on the object being measured. The auxiliary laser line emitted by the auxiliary laser generator is refracted by the laser beam combiner and is parallel to or overlaps with the measurement laser line; The presence of the refracted measurement laser line is indicated by the projected auxiliary laser line: If the auxiliary laser line after transmission through the laser beam combiner is two parallel lines, then the measuring laser line is located between the two parallel lines. If the auxiliary laser line is transmitted through a laser beam combiner with an impermeable region, the measuring laser line is split into two segments, and the measuring laser line is located at the split position between the two segments.

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