A laser triangle generating device

CN117970653BActive Publication Date: 2026-10-09BEIJING BRIGHTNESS PHOTOELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202410213553.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-02-27
Publication Date
2026-10-09
Estimated Expiration
2044-02-27

AI Technical Summary

Technical Problem

[0002]现有的激光装置,其能产生直线、矩形以及圆形光束,但是在工程定位时,往往需要三角形定位,现有的激光装置无法直接产生对应的三角形光,继而需要两个不同的激光装置组合拼装完成三角光束的制作;其需要两台装置组装,进而会导致组装后的三角角度需要再次通过辅助设备进行确认,从而使得三角光束的制作复杂、且易产生角度误差

Benefits of technology

[0015] After adopting the structure of the present invention, see Figure 1 The laser beam emitted is a rectangular beam, which is divided into an upper beam a and a lower beam b by a dividing block. The upper beam a is reflected by the inclined surface of a right-angle prism to become beam c; the lower beam b is deflected by a wedge mirror to become beam d. Beams a, c, and d form a laser triangle. Moving the right-angle prism along the extension line of the dividing block, that is, translating the right-angle prism from position M to position N, will cause the emission direction of beam c to shift. The size of the laser triangle can be adjusted, and a triangular beam with a corresponding angle can be formed through a single device. The triangular beam is simple to make and ensures accurate and reliable angles.

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Abstract

The application discloses a laser triangular generating device which forms a triangular light beam with corresponding angles through a single device, and the triangular light beam is simple to manufacture and ensures accurate and reliable angles. The device comprises a laser, a right-angle prism, a wedge-shaped mirror and a separation block. The laser has a rectangular light beam on the exit surface. The hypotenuse of the right-angle prism is a reflecting surface. The wedge-shaped mirror comprises a vertical incident surface and a refracting exit surface. The exit surface of the laser is separated by the separation block into an upper region and a lower region. The right-angle prism is located on the upper part of the separation block, and the reflecting surface of the right-angle prism is used for reflecting the upper part light beam of the upper region to the lower region. The right-angle prism is arranged along the extension line of the separation block. The wedge-shaped mirror is located below the separation block. The wedge-shaped mirror refracts the lower part light beam of the lower region to form a downward refracted light beam.
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Description

Technical Field

[0001] This invention relates to the technical field of optical equipment, specifically to a laser triangle generating device. Background Technology

[0002] Existing laser devices can generate straight, rectangular, and circular beams. However, in engineering positioning, triangular positioning is often required. Existing laser devices cannot directly generate the corresponding triangular beams. Therefore, two different laser devices need to be combined and assembled to complete the production of the triangular beam. The assembly of two devices requires the triangular angle to be confirmed again by auxiliary equipment, which makes the production of the triangular beam complex and prone to angular errors. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a laser triangle generating device that generates a triangular beam at a corresponding angle using a single device. The triangular beam is simple to manufacture and ensures accurate and reliable angles.

[0004] A laser triangle generating device, characterized in that it comprises:

[0005] A laser whose output beam is a rectangular beam;

[0006] A right-angle prism has its hypotenuse as the reflecting surface.

[0007] A wedge-shaped mirror, which includes a perpendicular incident surface and a refracting exit surface;

[0008] And separator blocks;

[0009] The laser's emission surface is divided into an upper region and a lower region by a partition block. The right-angle prism is located on the upper part of the partition block, and its reflective surface is used to reflect the upper portion of the beam from the upper region to the lower region. The right-angle prism is moved along the extension line of the partition block. The wedge-shaped mirror is located below the partition block, and it refracts the lower portion of the beam from the lower region to form a downward refracted beam.

[0010] Its further features are:

[0011] The right-angle prism is specifically an isosceles right-angle prism;

[0012] The angle at which the light beam is deflected by the refracting surface of the wedge mirror is the angle α of one angle formed by the entire device, and the other far angle is β, and α+β=90°. When it is necessary to adjust the angle of the triangular beam, the angle at which the light beam is deflected by the refracting surface of the wedge mirror can be adjusted.

[0013] It also includes a housing, which is elongated and has a transparent glass lower surface to ensure that the triangular beam formed by the right-angle prism is visible within its range of motion.

[0014] The right-angle prism is provided with an upwardly convex driving rod at its top, and side-convex guide rail pairs are provided on both sides of the right-angle prism. A linear translation track is provided on the side wall of the housing corresponding to the position of the side-convex guide rail pairs. A notch is provided on the top of the housing corresponding to the upwardly convex driving rod. The top of the upwardly convex driving rod protrudes upwardly from the notch. The side-convex guide rail pairs are embedded in the linear translation track, which allows the right-angle prism to move reliably along the extension line of the separator block.

[0015] After adopting the structure of the present invention, see Figure 1 The laser beam emitted is a rectangular beam, which is divided into an upper beam a and a lower beam b by a dividing block. The upper beam a is reflected by the inclined surface of a right-angle prism to become beam c; the lower beam b is deflected by a wedge mirror to become beam d. Beams a, c, and d form a laser triangle. Moving the right-angle prism along the extension line of the dividing block, that is, translating the right-angle prism from position M to position N, will cause the emission direction of beam c to shift. The size of the laser triangle can be adjusted, and a triangular beam with a corresponding angle can be formed through a single device. The triangular beam is simple to make and ensures accurate and reliable angles. Attached Figure Description

[0016] Figure 1 This is a simplified schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the assembly of the right-angle prism and its housing;

[0018] Figure 3 This is a schematic diagram of the optical principle of the present invention;

[0019] The names corresponding to the serial numbers in the diagram are as follows:

[0020] Laser 10, exit surface 11, right angle prism 20, reflecting surface 21, convex drive rod 201, convex guide rail pair 202, wedge mirror 30, vertical incident surface 31, refracting exit surface 32, separator block 40, housing 50, transparent glass 51, linear translation track 501, notch slot 502. Detailed Implementation

[0021] A laser triangle generating device, see Figures 1-3 It includes a laser 10, a right-angle prism 20, a wedge mirror 30, a separator block 40, and a housing 50; the laser 10 emits a rectangular beam from its emitting surface 11; the hypotenuse of the right-angle prism 20 is a reflecting surface 21; the wedge mirror 30 includes a perpendicular incident surface 31 and a refracting exit surface 32.

[0022] The laser 10's emission surface 11 is divided into an upper region and a lower region by a partition block 40. A right-angle prism 20 is located above the partition block 40, and the reflective surface 21 of the right-angle prism 20 is used to reflect the upper part of the beam from the upper region to the lower region. The right-angle prism 20 is moved along the extension line of the partition block 40. A wedge mirror 30 is located below the partition block 40. The wedge mirror 30 refracts the lower part of the beam from the lower region to form a downward refracted beam.

[0023] In a specific embodiment, the right-angle prism 20 is an isosceles right-angle prism;

[0024] The deflection angle of the refracting exit surface 32 of the wedge mirror 30 is the angle α of one angle formed by the entire device, and the other far-end angle is β, and α+β=90°. When it is necessary to adjust the angle of the triangular beam, the deflection angle of the light beam of the refracting exit surface 2 of the wedge mirror 303 can be adjusted.

[0025] The housing 50 is elongated, and the lower surface of the housing 50 is transparent glass 51, ensuring that the triangular beam formed by the right-angle prism 20 is visible within its range of movement.

[0026] The right-angle prism 20 has an upwardly protruding drive rod 201 on its top and side-protruding guide rail pairs 202 on both sides. The side wall of the housing 50 is provided with a linear translation track 501 corresponding to the position of the side-protruding guide rail pairs 202. The top of the housing 50 is provided with a notch 502 corresponding to the upwardly protruding drive rod 201. The top of the upwardly protruding drive rod 201 is arranged in the notch 502. The side-protruding guide rail pairs 202 are embedded in the linear translation track 501. The top of the upwardly protruding drive rod 201 is manually driven, which makes the right-angle prism 20 reliably move along the extension line of the separator block 40, thereby adjusting the position of the right-angle prism 20.

[0027] Its working principle is described in [link to documentation]. Figure 3 The laser beam emitted is a rectangular beam, which is divided into an upper beam (a) and a lower beam (b) by a dividing block. The upper beam (a) is reflected by the inclined surface of a right-angle prism to become beam (c); the lower beam (b) is deflected by a wedge-shaped mirror to become beam (d). Beams (a), (c), and (d) form a laser triangle. Moving the right-angle prism along the extension line of the dividing block, i.e., translating the right-angle prism from position M to position N, will cause a translation in the emission direction of beam (c). The size of the laser triangle can be adjusted, and a triangular beam with a corresponding angle can be formed through a single device. The triangular beam is simple to manufacture and ensures accurate and reliable angles.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laser triangle generating device, characterized in that, It includes: A laser whose output beam is a rectangular beam; A right-angle prism has its hypotenuse as the reflecting surface. A wedge-shaped mirror, which includes a perpendicular incident surface and a refracting exit surface; And separator blocks; The laser's emission surface is divided into an upper region and a lower region by a partition block. The right-angle prism is located on the upper part of the partition block, and its reflective surface is used to reflect the upper portion of the beam from the upper region to the lower region. The right-angle prism is moved along the extension line of the partition block. The wedge-shaped mirror is located below the partition block, and it refracts the lower portion of the beam from the lower region to form a downward refracted beam.

2. The laser triangle generating device according to claim 1, characterized in that: The right-angle prism is specifically an isosceles right-angle prism.

3. The laser triangle generating device according to claim 2, characterized in that: The angle at which the light beam is deflected by the refracting surface of the wedge mirror is the angle α formed by the entire device, and the other far-end angle is β, and α+β=90°. When it is necessary to adjust the angle of the triangular beam, the angle at which the light beam is deflected by the refracting surface of the wedge mirror can be adjusted.

4. The laser triangle generating device according to claim 1, characterized in that: It also includes a shell, which is elongated and the lower surface of which is transparent glass.

5. The laser triangle generating device according to claim 4, characterized in that: The right-angle prism is provided with an upward convex driving rod at its top, and side convex guide rail pairs are provided on both sides of the right-angle prism. A linear translation track is provided on the side wall of the housing corresponding to the position of the side convex guide rail pairs. A notch is provided on the top of the housing corresponding to the upward convex driving rod. The top of the upward convex driving rod protrudes upward from the notch, and the side convex guide rail pairs are embedded in the linear translation track.

Citation Information

Patent Citations

  • Bidirectional linear effect laser device based on four Powell prisms

    CN115185098A

  • Laser angle fixing device

    CN217005730U