CN113075799A

CN113075799A - Laser light splitting box

Info

Publication number: CN113075799A
Application number: CN202110279287.6A
Authority: CN
Inventors: 汤壹伍
Original assignee: Shenzhen Huizhi Laser Equipment Co ltd
Current assignee: Shenzhen Huizhi Laser Equipment Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-07-06

Abstract

The invention provides a laser beam-splitting box which comprises at least one beam-splitting unit, wherein each beam-splitting unit comprises a beam-splitting prism, a first reflecting mirror, a second reflecting mirror and a linear driving mechanism. The direct splitting prism is provided with a first incident plane, a second incident plane and an emergent plane, and the first incident plane, the second incident plane and the emergent plane jointly enclose a space with a triangular cross section. The linear driving mechanism can drive the beam splitter prism to move, so that the quantity of the laser which respectively enters the first incident plane and the second incident plane is changed, and if the laser energy in a certain direction is larger, the beam splitter prism is moved, so that more laser can be incident to the incident plane corresponding to the direction. If the beam splitter prism is moved to a certain limit position, the laser can be controlled to be in one direction and not in the other direction within a certain period of time, so that the time beam splitting is realized.

Description

Laser light splitting box

Technical Field

The invention belongs to the technical field of laser light splitting equipment, and particularly relates to a laser light splitting box.

Background

Laser light, which is a kind of light, is generated by atomic (or molecular, ionic, etc.) transition, like other luminescence in the natural world, and is caused by spontaneous emission. Except that the ordinary light source is generated by spontaneous emission all the time, thus containing components of different frequencies (or different wavelengths, different colors) and propagating in all directions. The laser then relies on spontaneous emission only for an initial very short time, the process thereafter being entirely determined by the stimulated emission. For this reason, the laser has a very pure color, almost no directivity of divergence, and an extremely high luminous intensity. It is these miraculous properties that make lasers have a range of incredible yet believable applications in various fields.

However, in some specific applications, energy or time splitting needs to be performed on the laser, that is, the laser is divided into two or more rows of lasers with different energies, or the laser passes through a certain time, and no laser passes through a certain time. For this reason, it is necessary to develop a device capable of realizing time and energy splitting.

Disclosure of Invention

The invention aims to provide a laser light splitting box, aiming at realizing the light splitting of laser energy and time.

The invention is realized in such a way that a laser beam splitting box comprises at least one beam splitting unit, wherein each beam splitting unit comprises a beam splitting prism, a first reflecting mirror, a second reflecting mirror and a linear driving mechanism, the power output end of the linear driving mechanism is in transmission connection with the beam splitting prism so as to drive the beam splitting prism to move linearly in a reciprocating manner, the beam splitting prism is provided with a first incident plane, a second incident plane and an emergent plane, and the first incident plane, the second incident plane and the emergent plane jointly enclose a space with a triangular cross section; the first reflector is spaced from the second reflector by a distance; the first reflector and the second reflector are opposite to the emergent plane and are at a distance.

Furthermore, the cross section of a space defined by the first incident plane, the second incident plane and the emergent plane is an isosceles triangle.

Further, the linear driving mechanism comprises a linear driving motor.

Further, the laser beam-splitting box further comprises a controller, and the controller controls the moving distance of the beam-splitting prism by controlling the input voltage of the linear driving motor.

Further, the range of the input voltage of the linear driving motor is 0-10V.

Furthermore, the first reflector and the second reflector are both plane reflectors, and the reflection plane of the first reflector, the reflection plane of the second reflector and the emergent plane of the beam splitter prism are parallel to each other.

Further, the whole beam splitter prism is in a triangular prism shape or a pentagonal prism shape.

Compared with the prior art, the invention has the beneficial effects that:

the laser beam-splitting box comprises at least one beam-splitting unit, wherein each beam-splitting unit comprises a beam-splitting prism, a first reflecting mirror, a second reflecting mirror and a linear driving mechanism. One part of laser enters the beam splitting prism from the first incident plane, the other part of laser enters the beam splitting prism from the second incident plane, the laser entering the beam splitting prism is refracted inside the beam splitting prism, the laser in the two directions is firstly intersected and then emitted out at the emergent plane at a certain included angle, the two paths of emitted laser respectively enter the first reflecting mirror and the second reflecting mirror, then are reflected, and finally are continuously transmitted in different directions. Therefore, one light splitting unit can divide one laser beam into two laser beams, and if the laser beams need to be divided into more branches, only the light splitting unit needs to be correspondingly added.

The linear driving mechanism can drive the beam splitter prism to move, so that the quantity of the laser respectively entering the first incidence plane and the second incidence plane is changed, if the laser energy in a certain direction is larger, the beam splitter prism is only required to be moved, and more laser can be made to enter the incidence plane corresponding to the direction, so that energy beam splitting is realized. Of course, if the splitting prism is moved to a certain limit position, only one plane of incidence has laser light entering and the other plane of incidence does not have any laser light entering, which means that it is possible to control that in a certain period of time, one direction has laser light and the other direction has no laser light, thereby realizing time splitting.

Drawings

Fig. 1 is a schematic diagram of a light splitting unit splitting a laser beam into two paths according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a laser beam splitting unit for energy splitting according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a beam splitter for time-splitting a laser beam according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, a laser beam-splitting box according to a preferred embodiment of the present invention includes at least one beam-splitting unit, each beam-splitting unit includes a beam-splitting prism 1, a first reflector 2, a second reflector 3, and a linear driving mechanism.

And the power output end of the linear driving mechanism is in transmission connection with the beam splitter prism 1, so that the beam splitter prism 1 can be driven to move linearly in a reciprocating manner. In this embodiment, the power source of the linear driving mechanism is a linear driving motor, and certainly, in practical applications, the power source may also be a mechanism or a module that can realize linear driving, such as an electric cylinder.

The beam splitter prism 1 has a first plane of incidence 11, a second plane of incidence 12 and an exit plane 13. The first incident plane 11, the second incident plane 12 and the exit plane 13 together enclose a space with a triangular cross section; the first reflector 2 is at a distance from the second reflector 3; the first reflector 2 and the second reflector 3 are both opposite to the exit plane 13 and are at a distance.

Specifically, the cross section of a space enclosed by the first incident plane 11, the second incident plane 12 and the exit plane 13 is an isosceles triangle.

The laser beam-splitting box further comprises a controller, and the controller controls the moving distance of the beam-splitting prism by controlling the input voltage of the linear driving motor. The range of the input voltage of the linear driving motor of the embodiment is 0 to 10V, so that the moving distance of the beam splitter prism 1 can be divided into ten sections, thereby facilitating the position control of the beam splitter prism 1 and the beam splitting control.

Preferably, the first reflector 2 and the second reflector 3 are both plane reflectors, and the reflection plane of the first reflector 2, the reflection plane of the second reflector 3 and the exit plane 13 of the beam splitter prism 1 are parallel to each other.

The splitting prism 1 of the present embodiment has an overall pentagonal prism shape, and in practical applications, may have any shape such as a triangular prism that can satisfy the layout of three planes, i.e., the first incident plane 11, the second incident plane 12, and the exit plane 13.

In summary, the laser beam-splitting box of the present embodiment includes at least one beam-splitting unit, and each beam-splitting unit includes a beam-splitting prism 1, a first reflector 2, a second reflector 3, and a linear driving mechanism. One part of laser enters the beam splitter prism from the first incident plane 11, the other part of laser enters the beam splitter prism 1 from the second incident plane 12, the laser entering the beam splitter prism 1 is refracted inside the beam splitter prism 1, the laser in the two directions is firstly intersected and then emitted out at the emitting plane 13 at a certain included angle, the two paths of emitted laser respectively enter the first reflector 2 and the second reflector 3, then are reflected, and finally are continuously transmitted in different directions. Therefore, one light splitting unit of the embodiment can divide one laser beam into two laser beams, and if the laser beam needs to be divided into more branch paths, only the light splitting unit needs to be correspondingly added.

The linear driving mechanism of this embodiment can drive the beam splitter prism 1 to move, so as to change the number of the laser beams respectively entering the first incident plane 11 and the second incident plane 12, please refer to fig. 2, if the laser energy in a certain direction is desired to be larger, only more laser beams need to be incident on the corresponding incident plane in the certain direction, thereby realizing energy beam splitting. Referring to fig. 3, if the beam splitter prism 1 is moved to a certain limit position, only the second plane of incidence 12 has laser light entering and the first plane of incidence 11 does not have any laser light entering, which means that it is possible to control a certain direction to have laser light and another direction to have no laser light in a certain period of time, thereby achieving temporal beam splitting.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A laser beam-splitting box is characterized by comprising at least one beam-splitting unit, wherein each beam-splitting unit comprises a beam-splitting prism, a first reflector, a second reflector and a linear driving mechanism, the power output end of the linear driving mechanism is in transmission connection with the beam-splitting prism so as to drive the beam-splitting prism to move linearly in a reciprocating manner, the beam-splitting prism is provided with a first incident plane, a second incident plane and an emergent plane, and the first incident plane, the second incident plane and the emergent plane jointly enclose a space with a triangular cross section; the first reflector is spaced from the second reflector by a distance; the first reflector and the second reflector are opposite to the emergent plane and are at a distance.

2. The laser spectrometer of claim 1, wherein the cross-section of the space defined by the first incident plane, the second incident plane and the exit plane is an isosceles triangle.

3. The laser spectrometer cassette of claim 1, wherein the linear drive mechanism comprises a linear drive motor.

4. A laser spectrometer cell according to claim 3, further comprising a controller that controls the distance of movement of the beam splitting prism by controlling the input voltage to the linear drive motor.

5. The laser spectrometer of claim 4, wherein the input voltage of the linear drive motor is in the range of 0 to 10V.

6. A laser beam-splitting cell according to any one of claims 1 to 5, wherein the first and second mirrors are planar mirrors, and the reflecting plane of the first mirror, the reflecting plane of the second mirror and the exit plane of the beam-splitting prism are parallel to each other.

7. A laser beam-splitting cell according to any one of claims 1 to 5, wherein the beam-splitting prism has a triangular prism shape or a pentagonal prism shape as a whole.