Beam shaping component, light source system and optical equipment

Abstract

The invention relates to the technical field of optics, in particular to a light beam shaping component, a light source system and optical equipment. The light beam shaping component comprises N-1 first optical elements and a second optical element which are sequentially arranged in the first direction. N is an integer greater than or equal to 2. Any one of the N-1 first optical elements is used for decomposing an incident light beam propagating in a first direction into a first light beam and a second light beam, and emitting the first light beam according to a preset first deflection angle; and emitting a second light beam along the first direction so as to take the second light beam as an incident light beam of the first optical element or the second optical element adjacent to any first optical element. And the second optical element is used for reflecting the incident light beam and emitting a third light beam obtained by reflection according to a second deflection angle preset by the second optical element. The light beam shaping component is good in performance, simple in structure and higher in applicability and practicability.

Description

Technical Field

[0001] The present application relates to the field of optical technology, and in particular to a beam shaping component, a light source system and an optical device. Background Art

[0002] With the continuous development of optical technology, the application scenarios of optical equipment are also expanding. In order to meet the use requirements in different scenarios, beam shaping components have become one of the indispensable and important components of optical equipment. In practical applications, beam shaping components can use these optical elements to split the incident light beam and adjust the output angle of the split light beam in order to adjust the incident light beam to a specified shape.

[0003] There are mainly two types of existing beam shaping components. The first type is a beam shaping component based on a collimating lens group and a diffractive optical element. The second type is a beam shaping component based on geometric optical elements such as an optical fiber array and a microlens group. Since the diffractive optical element has strict requirements on the wavelength of the incident light beam, the application of the first type of beam shaping component is relatively limited. Geometric optical elements have high requirements on installation accuracy and working environment, and the use of optical fiber arrays for beam splitting will result in large light energy loss. Therefore, the second type of beam shaping component has problems such as difficult installation and large light energy loss. Therefore, the existing beam shaping components have many defects, and their applicability and practicality need to be improved. Summary of the invention

[0004] In order to solve the above problems, the present application provides a beam shaping component, a light source system and an optical device. The beam shaping component has good performance and a simple structure, and has strong applicability and practicality.

[0005] In the first aspect, an embodiment of the present application provides a beam shaping component. The beam shaping component may include N-1 first optical elements and a second optical element, and the N-1 first optical elements and the second optical elements are arranged in sequence in the first direction. Wherein, N is an integer greater than or equal to 2. In actual work, any first optical element among the above-mentioned N-1 first optical elements can be used to decompose the incident light beam propagating in the first direction into a first light beam and a second light beam, emit the first light beam according to the first deflection angle preset by any first optical element, and emit the second light beam along the first direction to use the second light beam as the incident light beam of the first optical element or the second optical element adjacent to any first optical element. The above-mentioned second optical element is used to reflect the incident light beam, and emit the third light beam obtained by reflection according to the second deflection angle preset by the second optical element.

[0006] In the above implementation, the beam shaping component is composed of N-1 first optical elements and a second optical element arranged in sequence in the first direction. Each first optical element can decompose its incident light beam into a first light beam and a second light beam, and use the first light beam as an outgoing light beam of the beam shaping component to emit according to its preset deflection angle, and emit the second light beam to the first first optical element arranged thereafter as the incident light beam of the first optical element, and the second optical element arranged at the end can reflect the second light beam emitted by the previous first optical element, and use the third light beam obtained by the reflection as an outgoing light beam of the beam shaping component. The beam shaping component adopts a geometric optical shaping architecture, which is insensitive to the wavelength of the incident light beam and has a large applicable wavelength range. And it does not need to use a beam splitting optical fiber with large splitting loss for beam splitting, and the light energy loss is low. In addition, the beam shaping component is composed of only a plurality of N optical elements, with a simple structure and low cost. Compared with the existing beam shaping device, the beam shaping component provided by the present application has better performance, stronger applicability and practicality.

[0007] In combination with the first aspect, in a feasible implementation, any of the first optical elements may include a first optical film and a first waveguide structure for setting the first optical film. The first optical film is used to reflect and transmit an incident light beam of any of the first optical elements to obtain a first light beam and a second light beam, emit the first light beam according to the first deflection angle, and emit the second light beam along the first direction.

[0008] In the above implementation, each first optical element is composed of only a first optical film and a first waveguide structure for setting the first optical film, and the decomposition of the incident light beam is achieved through the reflection and transmission properties of the first optical film. On the one hand, the characteristics of the optical film can make each first optical element respond to a larger wavelength range, so that the beam shaping component is insensitive to the wavelength of the incident light beam and has a larger applicable wavelength range. In addition, the loss of light splitting by the optical film is small, which can effectively reduce the light energy loss of the beam shaping component. On the other hand, such a structure is simple and easy to implement, and can also facilitate the design and production of beam shaping components.

[0009] In combination with the first aspect, in a feasible implementation, the second optical element includes a second optical film and a second waveguide structure for setting the second optical film. The second optical film is used to reflect the incident light beam of the second optical element, and emit the third light beam obtained by the reflection according to the second deflection angle preset by the second optical element. In the above implementation, the second optical element is formed by a second optical film and a second waveguide structure for setting the second optical film, which can further reduce the light energy loss of the beam shaping component and simplify the structure of the beam shaping component.

[0010] In combination with the first aspect, in a feasible implementation, the first optical film is disposed on a first surface of the first waveguide structure along the first direction, and the second optical film is disposed on a second surface of the second waveguide structure along the first direction.

[0011] In combination with the first aspect, in a feasible implementation, the shape of the first waveguide structure included in the first optical element arranged in the first position is a triangular prism whose bottom surface is a right triangle, and the shape of the first waveguide structure included in each of the N-2 first optical elements other than the first optical element arranged in the first position and the second waveguide structure are quadrangular prisms. The side edges of the first waveguide structure included in the first optical element arranged in the first position, the side edges of the first waveguide structure included in each of the N-2 first optical elements, and the side edges of the second waveguide structure are all perpendicular to the first direction.

[0012] In combination with the first aspect, in a feasible implementation manner, the first optical film is disposed inside the first waveguide structure, and the second optical film is disposed inside the second waveguide structure.

[0013] In combination with the first aspect, in a feasible implementation manner, the first waveguide structure and the second waveguide structure are in the shape of a cube and have the same size.

[0014] In the above implementation, the first optical film is disposed inside the first waveguide structure, the second optical film is disposed inside the second waveguide structure, and the sizes of the first waveguide structure and the second waveguide structure are designed to be the same, which can facilitate the design and production of the first optical element and the second optical element, thereby reducing the cost of the beam shaping component. At the same time, this can also make the shape of the beam shaping component more regular, which can facilitate the installation and use of the beam shaping component.

[0015] In combination with the first aspect, in a feasible implementation, when the first deflection angle and the second deflection angle are the same, the beam shaping component may further include N first steering components. The N-1 first optical elements and the second optical elements correspond one-to-one to the N first steering components. The first steering component corresponding to the first optical element is used to receive the first light beam emitted by any first optical element, and emit the first light beam according to a preset third deflection angle. The first steering component corresponding to the second optical element is used to receive the third light beam emitted by the second optical element, and emit the third light beam according to a preset fourth deflection angle.

[0016] In the above implementation, the propagation direction of the first light beam emitted by each first optical element or the third light beam emitted by the second optical element LN is adjusted by the first steering component, so that the shape of the output light beam of the beam shaping component can meet the requirements. Such an implementation method can make the preset deflection angles of the first optical element and the second optical element the same, so that the difference in structure between the first optical element and the second optical element is smaller, which is conducive to the design and production of the first optical element and the second optical element.

[0017] In combination with the first aspect, in a feasible implementation, any first steering component among the N first steering components is fixedly connected to a first optical element or a second optical element corresponding to any first steering component through a first connecting layer.

[0018] In the above implementation, each first optical element and the second optical element are fixedly connected to the corresponding first steering component through the first connecting layer, so that the overall structure of the beam shaping component is more stable and reliable, thereby facilitating the installation and use of the beam shaping component.

[0019] In combination with the first aspect, in a feasible implementation manner, the first turning component is an optical wedge.

[0020] In combination with the first aspect, in a feasible implementation method, the propagation directions of the first light beam output by each of the N-1 first optical elements and the third light beam output by the second optical element are divergent, or the first light beam output by each first optical element and the third light beam output by the second optical element are parallel to each other, or the first light beam output by each first optical element and the third light beam output by the second optical element intersect at one point.

[0021] In combination with the first aspect, in a feasible implementation manner, any two adjacent optical elements among the N-1 first optical elements and the second optical elements are fixedly connected via a second connecting layer.

[0022] In the above implementation, the N-1 first optical elements and the second optical elements are fixedly connected together through a plurality of second connection layers, so that the structure of the beam shaping component is more stable and reliable, which is beneficial to the installation and use of the beam shaping component.

[0023] In combination with the first aspect, in a feasible implementation, the beam shaping component also includes M-1 third optical elements and a fourth optical element. The M-1 third optical elements and the fourth optical element are arranged in sequence in the second direction, the second direction is opposite to the first direction, and M is an integer greater than or equal to 2. Any third optical element among the M-1 third optical elements is used to decompose the incident light beam propagating in the second direction into a fourth light beam and a fifth light beam, emit the fourth light beam according to the fifth deflection angle preset by any third optical element, and emit the fifth light beam along the second direction so as to use the fifth light beam as the incident light beam of the third optical element or the fourth optical element adjacent to any third optical element. The fourth optical element is used to reflect the incident light beam, and emit the sixth light beam obtained by reflection according to the sixth deflection angle preset by the fourth optical element.

[0024] In the above implementation, M optical elements are added to the beam shaping component, so that the beam shaping component can perform beam shaping on another incident light beam through the newly added M optical elements, that is, the beam shaping component can perform beam shaping on two incident light beams at the same time. This can enhance the intensity of the output light beam of the beam shaping component, so that the beam shaping component can be applied to scenes with high optical power requirements, and the applicability of the beam shaping component can be improved.

[0025] In combination with the first aspect, in a feasible implementation, when N is equal to M, the second optical element is fixedly connected to the fourth optical element, and the optical axis of the incident light beam of the second optical element coincides with the optical axis of the incident light beam of the fourth optical element.

[0026] In combination with the first aspect, in a feasible implementation, when the fifth deflection angle is the same as the sixth deflection angle, the beam shaping component may further include M second steering components. M-1 third optical elements and second optical elements correspond one-to-one to the M second steering components. The second steering component corresponding to any third optical element is used to receive the fourth light beam emitted by any third optical element, and emit the fourth light beam according to the preset seventh deflection angle. The second steering component corresponding to the fourth optical element is used to receive the sixth light beam emitted by the fourth optical element, and emit the sixth light beam according to the preset eighth deflection angle.

[0027] In the above implementation, the propagation direction of the fourth light beam emitted by each third optical element and the sixth light beam emitted by the fourth optical element is adjusted by the second steering component, so that the deflection angles of the third optical elements and the fourth optical elements can be the same, thereby making the structural differences between the third optical elements and the fourth optical elements smaller, which is beneficial to the design and production of the third optical elements and the fourth optical elements.

[0028] In combination with the first aspect, in a feasible implementation manner, the second turning component is an optical wedge.

[0029] In a second aspect, the present application provides a light source system. The light source system may include a beam shaping component and a light source as described in any one of the first aspects above. In actual operation, the light source is used to provide the beam shaping component with an incident light beam propagating in a first direction and / or a second direction. The first direction is opposite to the second direction. The beam shaping component is used to shape the incident light beam and emit the multiple light beams obtained by the processing according to a preset emission form.

[0030] Optionally, the light source system can be applied to fields that require beam shaping, such as laser processing, additive manufacturing, optical sensing, optical display, and optical communication.

[0031] In a third aspect, the present application further provides an optical device, the optical device comprising the light source system described in the second aspect. The light source system is used to provide the optical device with light waves required for its normal operation.

[0032] Optionally, the optical device may specifically be a laser radar, an optical transmitter, an optical receiver or the like.

[0033] The solutions provided in the second and third aspects are used to implement or cooperate with the beam shaping component provided in any one of the first aspects, and thus can achieve the same or corresponding beneficial effects as the first aspect, and will not be described in detail here.

[0034] In summary, the beam shaping component provided by the present application has a wide applicable wavelength range, low light energy loss, simple and reliable structure and low cost. Compared with existing beam shaping components, the beam shaping component provided by the present application has better performance, stronger applicability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a beam shaping component provided by the present application;

[0036] Figure 2 is a schematic diagram of an outgoing beam of a beam shaping component provided in the present application;

[0037] Figure 3 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0038] Figure 4 is a schematic structural diagram of a first optical element provided by the present application;

[0039] Figure 5 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0040] Figure 6It is a schematic diagram of a waveguide structure provided by the present application;

[0041] Figure 7 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0042] Figure 8 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0043] Fig. 9 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0044] Fig.10 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0045] Fig.11 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0046] Fig.12 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0047] Fig.13 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0048] Fig.14 It is another structural schematic diagram of the beam shaping component provided by the present application;

[0049] Fig.15 This is a schematic diagram of an application scenario of multi-dimensional beam shaping provided by the present application;

[0050] Fig.16 It is a structural schematic diagram of a light source system provided by the present application;

[0051] Fig.17 It is a schematic diagram of the structure of the optical device provided in this application. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings provided in the embodiments of the present application.

[0053] Existing beam shaping components mainly include beam shaping components based on collimating lens groups and diffractive optical elements, and beam shaping components based on geometric optical elements such as optical fiber arrays and microlens groups. These existing beam shaping components may have problems such as difficult installation or large light energy loss due to their own structures. Therefore, the existing beam shaping components have many defects, and their applicability and practicality need to be improved. Therefore, the technical problem to be solved by this application is: how to simplify the structure of the beam shaping component and optimize its performance, thereby improving its applicability and practicality.

[0054] In order to solve the above technical problems, the present application provides a beam shaping component, which includes a plurality of optical elements, and the plurality of optical elements are arranged in sequence according to a fixed arrangement direction. The plurality of optical elements can decompose the incident light beam propagated by the beam shaping component in the above fixed arrangement direction into a plurality of light beams, and can emit the plurality of light beams respectively according to the preset deflection angles of each optical element. At the same time, for any two adjacent optical elements among the above multiple optical elements, the optical element arranged in front will decompose its incident light beam into a light beam emitted at a preset angle and a light beam emitted along the above fixed arrangement direction, and the light beam emitted along the fixed arrangement direction will serve as the incident light beam of the optical element arranged in the back. The beam shaping component adopts a geometric optical shaping architecture, so it is insensitive to the wavelength of the incident light beam and has a large applicable wavelength range. It does not need to use a beam splitting optical fiber with large splitting loss for beam splitting, and the light energy loss is low. In addition, the beam shaping component is only composed of a plurality of optical elements, the structure is simple and reliable, and the cost is low. In summary, compared with existing beam shaping components, the beam shaping component provided by the present application has better performance, greater applicability and practicality.

[0055] See also Figure 1 , Figure 1 Schematic diagram of the structure of the beam shaping component provided by the present application. Figure 1 As shown, the beam shaping component 10 may include N optical elements. Wherein N is a positive integer greater than or equal to 2. The N optical elements are arranged in sequence in a fixed direction (for ease of understanding, the first direction is used in the following text). Since the optical element arranged at the end of the N optical elements is different from the N-1 optical elements other than the optical element arranged at the end in terms of structure and function, for the sake of convenience, the optical element arranged at the end of the N optical elements is referred to as the second optical element, that is, Figure 1 Each of the N-1 optical elements other than the second optical element LN is referred to as a first optical element, that is, Figure 1 It can also be understood that the beam shaping component 10 may include N-1 first optical elements and one second optical element LN, and the N-1 first optical elements and the second optical element LN are arranged in sequence along the first direction.

[0056] In actual operation, since the functions that can be realized by each of the N-1 first optical elements are the same, in order to avoid redundancy, the function of each first optical element will be described below by taking any first optical element as an example. Any of the N-1 first optical elements is used to decompose the incident light beam propagating in the first direction into the first light beam and the second light beam, and emit the first light beam decomposed according to the first deflection angle preset by the first optical element. At the same time, the first optical element can also emit the second light beam decomposed along the first direction, so as to use the second light beam decomposed as the incident light beam of the first optical element adjacent to and arranged behind the first optical element or the second optical element LN. That is to say, each of the N-1 first optical elements can be used to decompose the incident light beam propagating in the first direction into the first light beam and the second light beam, emit the first light beam decomposed according to the first deflection angle preset by the first optical element, and emit the second light beam decomposed according to the first direction. For example, the first optical element L2 and the first optical element L3 are two adjacent first optical elements, and the first optical element L3 is arranged behind the first optical element L2. The incident light beam of the first optical element L2 is the second light beam emitted by the first optical element L1. The first optical element L2 can decompose its incident light beam into the first light beam and the second light beam, emit the first light beam obtained by decomposition according to its preset first deflection angle, and emit the second light beam obtained by decomposition to the first optical element L3 along the first direction as the incident light beam of the first optical element L3. The above-mentioned second optical element is used to reflect its incident light beam, and emit the third light beam obtained by reflection according to its preset second deflection angle.

[0057] It can be understood that the incident light beam of the first optical element L1 arranged in the first position is usually the incident light beam of the beam shaping component 10 (for the convenience of distinction, the first incident light beam is used as the description below), and the third light beam and the N-1 first light beams are the outgoing light beams of the beam shaping component 10. For the beam shaping component 10 provided in the embodiment of the present application, the propagation direction of the first incident light beam should be the first direction mentioned above.

[0058] It should also be noted that each of the N optical elements is preset with a deflection angle, and the preset deflection angle of each optical element refers to the angle between the optical axis of the first light beam or the third light beam emitted by each optical element and the optical axis of the incident light beam. Therefore, the N-1 first optical elements correspond to N-1 first deflection angles, which are respectively Figure 1 The first deflection angle Q1, the first deflection angle Q2, and the first deflection angle QN-1 are shown in FIG. Similarly, the second optical element LN also has a corresponding second deflection angle, that is, Figure 1The second deflection angle QN described in.

[0059] It can be understood that, for the above-mentioned N optical elements, since the magnitudes of the N deflection angles, namely the first deflection angle Q1, the first deflection angle Q2, the first deflection angle QN-1, and the second deflection angle QN, determine the propagation directions of the N-1 first light beams decomposed by the N-1 first optical elements and the third light beam reflected by the second optical element LN, and the above-mentioned N-1 first light beams and the above-mentioned third light beam are the output light beams of the beam shaping component 10, therefore, the magnitudes of the N deflection angles, namely the first deflection angle Q1, the first deflection angle Q2, the first deflection angle QN-1, and the second deflection angle QN, determine the shape of the output light beam of the beam shaping component 10. For example, see Figure 2 , Figure 2 Schematic diagram of the outgoing beam of the beam shaping component provided in this application. Figure 2 As shown in (a) in FIG. 1 , when the N deflection angles, namely the first deflection angle Q1, the first deflection angle Q2, the first deflection angle QN-1 and the second deflection angle QN, increase in sequence, the first light beams output by each of the N-1 first optical elements and the third light beams output by the second optical element LN can intersect at the same focus, and the shape of the output light beam of the beam shaping component 10 is a convergent shape. Figure 2 As shown in (b), when the first deflection angle Q1, the first deflection angle Q2, the first deflection angle QN-1 and the second deflection angle QN are all equal, the first light beams output by each of the N-1 first optical elements and the third light beams output by the second optical element LN are parallel to each other, and the shape of the output light beams of the beam shaping component 10 is parallel. Figure 2 As shown in (c), when the N deflection angles, namely the first deflection angle Q1, the first deflection angle Q2, the first deflection angle QN-1 and the second deflection angle QN, decrease successively, the propagation direction of the first light beam emitted by each first optical element and the third light beam output by the second optical element LN is divergent, and the shape of the output light beam of the beam shaping component 10 is divergent. Of course, in actual implementation, the shape of the output light beam of the beam shaping component 10 can also be other possible shapes by setting the sizes of the above-mentioned N deflection angles. In other words, the sizes of the above-mentioned N deflection angles can be determined according to the shape of the output light beam required by the beam shaping component 10, and the present application does not impose specific restrictions on this.

[0060] In the above implementation, the beam shaping component 10 is composed of N-1 first optical elements and a second optical element LN arranged in sequence in the first direction. Each first optical element can decompose its incident light beam into a first light beam and a second light beam, and use the first light beam as an outgoing light beam of the beam shaping component 10 to emit according to its preset deflection angle, and emit the second light beam to the first first optical element arranged thereafter as the incident light beam of the first optical element, and the second optical element arranged at the end can reflect the second light beam emitted by the previous first optical element, and use the third light beam obtained by the reflection as an outgoing light beam of the beam shaping component 10. The beam shaping component 10 adopts a geometric optical shaping architecture, which is insensitive to the wavelength of the incident light beam and has a large applicable wavelength range. And it does not need to use a splitting optical fiber with large splitting loss for beam splitting, and the light energy loss is low. In addition, the beam shaping component 10 is composed of only a plurality of N optical elements, with a simple structure and low cost. Compared with the existing beam shaping device, the beam shaping component 10 provided in the present application has better performance, stronger applicability and practicality.

[0061] For some possible implementations, see Figure 3 , Figure 3 is another structural schematic diagram of the beam shaping component provided by the present application. Figure 3 As shown, any first optical element may include a first optical film and a first waveguide structure for setting (i.e., fixing) the first optical film. In other words, each of the N-1 first optical elements may be composed of a first optical film and a first waveguide structure for fixing the first optical film.

[0062] In actual work, the first optical film contained in any first optical element can be used to reflect and transmit the incident light beam of any first optical element to obtain a first light beam and a second light beam respectively, and emit the first light beam obtained by reflection according to the first deflection angle preset by any first optical element, and emit the second light beam obtained by transmission along the above-mentioned first direction.

[0063] It should be noted here that, since the first light beam is obtained by partially reflecting the incident light beam of any first optical element by the first optical film, the first deflection angle preset by any first optical element is associated with the angle between the optical axis of the incident light beam and the plane where the first optical film is located. That is to say, in the process of designing any first optical element, after the propagation direction of the incident light beam and the incident position of the incident light beam on the first optical film are fixed, the angle between the first optical film and the optical axis of the incident light beam is adjusted accordingly, so that any first optical element can emit the first light beam obtained by reflection according to its preset first deflection angle.

[0064] Since the structures and functions of the N-1 first optical elements are similar, the structure and function of each first optical element are described in detail below by taking the first optical element L2 as an example. Figure 4 , Figure 4 Schematic diagram of the structure of a first optical element provided by the present application. Figure 4 As shown, the first optical element L2 may be composed of a first optical film 121 and a first waveguide structure 122 for fixing the first optical film 121. In actual operation, the incident light beam from the first optical element L1 will reach the surface of the first optical film 121 through a part of the body of the first waveguide structure 122. The incident light beam will be reflected and transmitted on the first optical film 121 at the same time. The part of the light energy in the incident light beam reflected by the first optical film 121 will form the first light beam decomposed by the first optical element L2, and the remaining light energy that can pass through the first optical film 121 will form the second light beam decomposed by the first optical element L2. Since the first light beam is obtained by reflection from the first optical film 121, it will propagate according to the first deflection angle preset by the first optical element L2. Since the second light beam is obtained by transmission from the first optical film 121, it will continue to propagate along the propagation direction of the incident light beam (i.e., the first direction described above). In addition, since the first light beam is reflected by the first optical film 121, there is a fixed corresponding relationship between the first deflection angle Q2 preset by the first optical element L2 and the angle between the optical axis of the incident light beam of the first optical element L2 and the plane where the first optical film 121 is located (here assumed to be X2). Specifically, the following formula is satisfied: Q 2 =180°-2×(90°-X 2 ). Therefore, when the first deflection angle Q2 is known, as long as the angle X is designed 2 For example, assuming that the preset first deflection angle Q2 of the first optical element L2 is equal to 30° and the incident position of the incident light beam of the first optical element L2 on the first optical film 121 is fixed, it is necessary to design so that the angle between the optical axis of the incident light beam of the first optical element L2 and the plane where the first optical film 121 is located is 25°.

[0065] It should also be noted that when using Figure 3In the case of the structure shown, the sum of the optical powers of the first light beam and the second light beam emitted by any first optical element should be equal to the optical power of its incident light beam, and the ratio of the optical powers of the first light beam and the second light beam emitted by any first optical element and the response wavelength range of any first optical element are determined by the film system structure of the first optical film contained therein. For each first optical element provided in the present application, the corresponding response wavelength ranges can be the same, and the ratio of the optical powers of the first light beam and the second light beam emitted by each first optical element can be the same or different. The present application does not impose any specific restrictions on the specific structure of the first optical film contained in each first optical element, as long as it can ensure that each first optical element can achieve reflection and transmission of the incident light beam.

[0066] In the above implementation, each first optical element is composed of only a first optical film and a first waveguide structure for setting the first optical film, and the decomposition of the incident light beam is achieved through the reflection and transmission properties of the first optical film. On the one hand, the characteristics of the optical film can make each first optical element respond to a larger wavelength range, so that the beam shaping component 10 is insensitive to the wavelength of the incident light beam and has a larger applicable wavelength range. In addition, the loss of light splitting by the optical film is small, which can effectively reduce the light energy loss of the beam shaping component 10. On the other hand, such a structure is simple and easy to implement, and can also facilitate the design and production of the beam shaping component 10.

[0067] In an optional implementation, the incident position of the incident light beam of each first optical element on the first optical film it contains and the incident position of the incident light beam of the second optical element on the second optical film it contains are both on the optical axis of the incident light beam of the beam shaping component 10.

[0068] For some possible implementations, please continue to see Figure 3 .like Figure 3 As shown, the second optical element LN may include a second optical film and a second waveguide structure for arranging the second optical film.

[0069] In actual work, the second optical film is used to reflect the incident light beam of the second optical element LN, and emit the reflected third light beam according to the second deflection angle preset by the second optical element LN.

[0070] It should be noted that, since the third light beam is obtained by reflecting the incident light beam of the second optical element LN by the second optical film, the second deflection angle preset by the second optical element LN is associated with the angle between the optical axis of the incident light beam and the plane where the second optical film is located. That is to say, in the process of designing the second optical element LN, after the propagation direction of the incident light beam and the incident position of the incident light beam on the second optical film are fixed, the angle between the second optical film and the optical axis of the incident light beam is adjusted accordingly, so that the third light beam obtained by reflection can be emitted according to the preset second deflection angle. Here, the corresponding relationship between the preset second deflection angle of the second optical element LN and the angle between the optical axis of the incident light beam and the plane where the second optical film is located is the same as the corresponding relationship between the preset first deflection angle of any first optical element and the angle between the optical axis of the incident light beam and the plane where the first optical film is located as described above.

[0071] In the above implementation, the second optical element is formed by a second optical film and a second waveguide structure for setting the second optical film, which can further reduce the light energy loss of the beam shaping component 10 and simplify the structure of the beam shaping component 10.

[0072] For some possible implementations, please continue to see Figure 3 ,like Figure 3 As shown, in actual implementation, the first optical film included in each of the above-mentioned first optical elements can be arranged inside the first waveguide structure included in each first optical element, and the second optical film included in the above-mentioned second optical element can be arranged inside the second waveguide structure included in the second optical element.

[0073] In an alternative implementation, see Figure 3 ,like Figure 3 As shown, when the first optical film is disposed inside the first waveguide structure and the second optical film is disposed inside the second waveguide structure, the first waveguide structure included in each of the first optical elements and the second waveguide structure included in the second optical element are both in the shape of a cube, and the sizes of the first waveguide structures and the second waveguide structures are the same. It should be understood that Figure 3 The first waveguide structure and the second waveguide structure are shown as cubes. In actual implementation, the first waveguide structure and the second waveguide structure may also be rectangular parallelepiped, and no specific limitation is made here. The first waveguide structure and the second waveguide structure only need to have the same size, and the specific size of the size may be determined by the actual application requirements of the beam shaping component 10, and this application does not make any specific limitation on this.

[0074] In the above implementation, the first optical film is disposed inside the first waveguide structure, the second optical film is disposed inside the second waveguide structure, and the sizes of the first waveguide structure and the second waveguide structure are designed to be the same, which can facilitate the design and production of the first optical element and the second optical element, thereby reducing the cost of the beam shaping component 10. At the same time, this can also make the shape of the beam shaping component 10 more regular, which can facilitate the installation and use of the beam shaping component 10.

[0075] For some possible implementations, see Figure 5 , Figure 5 is another structural schematic diagram of the beam shaping component provided by the present application. Figure 5 As shown, the first optical film included in each first optical element can be arranged on the first surface of the first waveguide structure included in each first optical element along the first direction. The second optical film included in the second optical element can be arranged on the second surface of the second waveguide structure included in the second optical element along the first direction. Here, the first surface of each first waveguide structure along the first direction is the surface of each first waveguide structure facing the next first waveguide structure arranged behind it. Figure 5 The first surface of the first waveguide structure included in the first optical element L2 is the surface of the first waveguide structure that faces the first waveguide structure included in the first optical element L3. Similarly, the first surface of the first waveguide structure included in the first optical element L1 is the surface of the first waveguide structure that faces the first waveguide structure included in the first optical element L2. The first surfaces of the first waveguide structures included in other first optical elements are similar, and they will not be described one by one here. The second surface of the second waveguide structure along the first direction is the surface of the second waveguide structure that faces away from the first waveguide structure included in the first optical element LN-1.

[0076] It should be noted that the first optical film included in any first optical element may cover a partial area of ​​the first surface of the first waveguide structure included in any first optical element, or may cover the entire area, and this application does not impose any specific restrictions on this. The same is true for the second optical film included in the second optical element LN. In addition, it should also be understood that Figure 5 What is shown is the case where the outgoing beam of the beam shaping component 10 is parallel, in which case the first surface corresponding to each first optical element and the second surface corresponding to the second optical element are parallel to each other. When the outgoing beam of the beam shaping component 10 is divergent, focused or in other forms, the relative positional relationship between the first surface corresponding to each first optical element and the second surface corresponding to the second optical element may also be changed accordingly, and the present application does not impose any specific limitation on this.

[0077] In one possible implementation, using Figure 5 In the case of the structure shown, the first waveguide structure included in the first optical element L1 arranged first among the N-1 first optical elements is in the shape of a triangular prism whose bottom surface is a right triangle, and the first waveguide structure included in each of the N-2 first optical elements other than the first optical element L1 and the second waveguide structure included in the second optical element LN are in the shape of a quadrangular prism. In addition, the side edges of the first waveguide structure included in the first optical element L1, the side edges of the first waveguide structure included in each of the N-2 first optical elements, and the side edges of the second waveguide structure are all perpendicular to the first direction. It can also be understood that the bottom and top surfaces of the first waveguide structure included in the first optical element L1, the first waveguide structure included in each of the N-2 first optical elements, and the second waveguide structure are all perpendicular to the first direction.

[0078] For example, see Figure 6 , Figure 6 It should be understood that since the first waveguide structure included in each of the N-2 first optical elements other than the first optical element L1 and the second waveguide structure included in the second optical element LN are similar in shape and size, the second waveguide structure included in the second optical element LN will be taken as an example below. Figure 6 Only the first optical element L1 and the second optical element LN are shown in the figure, and the specific structures of the first optical elements other than the first optical element L1 can be referred to the second optical element LN. Figure 6 As shown, the first waveguide structure included in the first optical element L1 is a triangular prism with a right triangle bottom surface, and the first optical film included in the first optical element L1 is arranged on the first surface of the first waveguide structure along the first direction. The second waveguide structure included in the second optical element LN is a quadrangular prism, and the second optical film is arranged on the second surface of the second waveguide structure along the first direction. The side edges of the first waveguide structure included in the first optical element L1 and the second waveguide structure included in the second optical element L2 are both perpendicular to the first direction.

[0079] Optionally, the lengths of the side edges of the first waveguide structure included in the first optical element L1, the side edges of the first waveguide structure included in each of the N-2 first optical elements, and the side edges of the second waveguide structure are all equal. Moreover, the first surface of the first waveguide structure included in each of the first optical elements is the same in shape and size as the second surface of the second waveguide structure. It can also be understood that, for any two adjacent first optical elements, the first surface of the first waveguide structure included in the first optical element arranged in front is the same in size and shape as the surface of the first waveguide structure included in the first optical element arranged in the back facing the first optical element arranged in front. At the same time, the surface of the second waveguide structure facing the first optical element LN-1 is the same in size and shape as the first surface of the first waveguide structure included in the first optical element LN-1. By adopting such an implementation method, the appearance of the beam shaping component 10 can be made more regular, and the installation and use of the beam shaping component 10 can also be facilitated.

[0080] It should be noted that Figure 5 and Figure 6 The output beam shape of the beam shaping component 10 shown is parallel. In this case, the bottom and top surfaces of the first waveguide structure included in the first optical element L1 arranged in the first position can be right triangles, and the bottom and top surfaces of the first waveguide structure included in each of the N-2 first optical elements and the second waveguide structure can be parallelograms. However, this is only exemplary. When the output beam shape of the beam shaping component 10 is divergent, focused or other possible shapes, the shapes of the first waveguide structures and the second waveguide structures can also be other possible shapes, and the present application does not impose specific restrictions on this.

[0081] It should also be noted that, in actual implementation, the materials and film structures of the first optical film and the second optical film can be designed so that the first optical film and the second optical film not only have the functions of reflection and transmission, but also have the function of polarization maintenance, thereby further ensuring the quality of the output light beam of the beam shaping component 10.

[0082] It should be understood that Figures 3 to 6 What is shown is only an optional implementation of the N-1 first optical elements and the second optical elements LN. In actual implementation, each first optical element and the second optical element LN can also be implemented by other feasible structures. Even if each first optical element and the second optical element LN adopts the implementation of the waveguide structure and the optical film described above, the shape of the waveguide structure and the relative position relationship between the waveguide structure and the optical film can also be adjusted accordingly according to the design requirements of the beam shaping component 10, as long as it can ensure that each first optical element and the second optical element LN have the functions described above.

[0083] For some possible implementations, see Figure 7 , Figure 7 is another structural schematic diagram of the beam shaping component provided by the present application. Figure 7 As shown, any two adjacent optical elements among the N-1 first optical elements and the second optical elements LN are fixedly connected through a second connecting layer. In other words, the beam shaping component 10 may also include N-1 second connecting layers, and the N-1 first optical elements and the second optical elements LN are fixedly connected together through the N-1 second connecting layers, respectively, and every two optical elements are connected through a second connecting layer. For example, the first optical element L1 and the first optical element L2 may be fixedly connected together through a second connecting layer, and the first optical element L2 and the first optical element L3 may also be connected together through a second connecting layer. It should be noted here that in this implementation, the role of the second connecting layer is to fix two adjacent optical elements together, and the size, shape and relative position of the second connecting layer to the optical element may be determined by the specific structure of each first optical element and the second optical element LN, and the present application does not impose specific restrictions on this.

[0084] In the above implementation, the N-1 first optical elements and the second optical element LN are fixedly connected together through a plurality of second connection layers, so that the structure of the beam shaping component 10 is more stable and reliable, which is beneficial to the installation and use of the beam shaping component 10.

[0085] For some possible implementations, see Figure 8 , Figure 8 is another structural schematic diagram of the beam shaping component provided by the present application. Figure 8 As shown, the beam shaping component 10 may further include a substrate 20, and the N-1 first optical elements and the second optical elements LN are arranged in sequence on the substrate 20 in a first direction. It should be noted that each first optical element and the second optical element LN are usually fixedly arranged on the substrate 20, and there are many ways to fix each first optical element and the second optical element LN to the substrate 20, such as by bonding or snap fastening, etc., which is not limited in this application. Figure 8 In the case of the structure shown, the N-1 first optical elements and the N optical elements of the second optical elements LN can be adjacent to each other in pairs or not in contact with each other, and the present application does not impose any limitation on this.

[0086] In the above implementation, the N-1 first optical elements and the second optical elements LN included in the beam shaping component 10 are fixedly arranged by the substrate 20 , which is simple and reliable and is also conducive to the installation and use of the beam shaping component 10 .

[0087] In some feasible implementations, the first deflection angle and the second deflection angle are the same, which can also be understood as the light beams emitted by the N-1 first optical elements and the second optical element LN according to their respective corresponding deflection angles are parallel to each other. In this case, see Fig. 9 , Fig. 9 is another structural schematic diagram of the beam shaping component provided by the present application. Fig. 9 As shown, the beam shaping component 10 may also include N first steering components. Among them, the N-1 first optical elements and the N optical elements of the second optical element LN correspond to the N first steering components one by one. In other words, for the N-1 first optical elements and the N optical elements of the second optical element LN, each optical element corresponds to a first steering component.

[0088] It should be understood that each first steering component is preset with a third deflection angle or a fourth deflection angle, and the third deflection angle or the fourth deflection angle preset for each first steering component refers to the angle between the optical axis of the outgoing light beam of each first steering component and the optical axis of the incident light beam. The N-1 first optical elements and the second optical element LN are preset with N-1 third deflection angles and a fourth deflection angle, which are respectively Fig. 9 The third deflection angle Z1, the third deflection angle Z2, up to the third deflection angle ZN-1 and the fourth deflection angle ZN shown in FIG. Fig. 9 It is shown that each of the first deflection angle and the second deflection angle is 90 degrees. In actual implementation, each of the first deflection angle and the second deflection angle may also be other values, which are not specifically limited here.

[0089] In actual work, since the functions of the first steering component corresponding to each of the N-1 first optical elements are the same, in order to avoid redundancy, the functions of the first steering component corresponding to each of the N-1 first optical elements will be described below by taking the first steering component corresponding to any of the N-1 first optical elements as an example. The first steering component corresponding to any of the N-1 first optical elements can be used to receive the first light beam emitted by any of the first optical elements, and emit the first light beam according to a preset third deflection angle. For example, the first steering component corresponding to the first optical element L1 is used to emit the first light beam decomposed by the first optical element L1 according to its corresponding third deflection angle. The first steering component corresponding to the second optical element LN is used to receive the third light beam emitted by the second optical element LN, and emit the third light beam according to its preset fourth deflection angle.

[0090] It should be noted that, in actual implementation, the first steering component corresponding to each of the N optical elements may be disposed on the side of each optical element emitting the first light beam or the third light beam, so as to ensure that the first light beam or the third light beam emitted by each optical element can reach the first steering component corresponding to each optical element. The first steering component corresponding to each optical element may be connected to or independent of each optical element, and the present application does not impose any specific restrictions on this.

[0091] In the above implementation, the propagation direction of the first light beam emitted by each first optical element or the third light beam emitted by the second optical element LN is adjusted by the first steering component, so that the shape of the light beam emitted by the beam shaping component 10 can meet the requirements. Such an implementation method can make the preset deflection angles of the first optical element and the second optical element LN the same, so that the difference in structure between the first optical element and the second optical element LN is smaller, which is conducive to the design and production of the first optical element and the second optical element LN.

[0092] In one possible implementation, see Fig.10 , Fig.10 is another structural schematic diagram of the beam shaping component provided by the present application. Fig.10 As shown, any of the N first steering components is fixedly connected to the first optical element or the second optical element corresponding to the first steering component through a first connecting layer. In other words, the beam shaping component 10 may also include N first connecting layers, and the N first steering components are respectively fixedly connected to the N-1 first optical elements and the second optical element LN through the N first connecting layers. For example, the first optical element L1 is connected to the first steering component corresponding to the first optical element L1 through a first connecting layer. The second optical element LN is connected to the first steering component corresponding to the second optical element LN through a first connecting layer.

[0093] In the above implementation, each first optical element and the second optical element are fixedly connected to the corresponding first steering component through the first connecting layer, so that the overall structure of the beam shaping component 10 is more stable and reliable, thereby facilitating the installation and use of the beam shaping component.

[0094] In another feasible implementation, any of the N first steering components is fixedly connected to the first optical element or the second optical element LN corresponding to the first steering component in a detachable manner. That is to say, for the N optical elements, namely, N-1 first optical elements and the second optical element LN, the first steering component corresponding to each optical element is detachable. For example, a slot or a buckle may be provided on each optical element, and the first steering component corresponding to each optical element can be fixed to each optical element through the slot or the buckle. It should be understood that in this implementation, for the N first steering components provided in the present application, as long as they can be made detachable, there is no limitation on the specific implementation of the detachable structure.

[0095] In the above implementation, each first optical element and each second optical element are detachably arranged together with each first steering component, so that the beam shaping component 10 can adjust the shape of its output light beam by replacing the first steering component, thereby effectively improving the applicability of the beam shaping component 10.

[0096] For some possible implementations, see Fig.11 , Fig.11 is another structural schematic diagram of the beam shaping component provided by the present application. Fig.11 As shown, the first steering component is a wedge. In other words, the first steering components corresponding to each first optical element and the second optical element LN are all wedges. Among them, the first light beam emitted by each first optical element and the second light beam emitted by the second optical element should be incident on each wedge in a vertical or approximately vertical manner. The third deflection angle preset in each first steering component is the deflection angle of each wedge, and the deflection angle of each wedge can be specifically determined by the refraction angle and refractive index of each wedge.

[0097] In the above implementation, the optical wedge is used as the first deflection component, which can reduce the design difficulty and cost of the beam shaping component 10.

[0098] It should be understood that in actual implementation, the first steering component may also adopt other feasible structures, such as a flat plate with a gradient refractive index, etc. The present application does not limit the specific implementation method of the first steering component.

[0099] For some possible implementations, see Fig.12 , Fig.12 is another structural schematic diagram of the beam shaping component provided by the present application. Fig.12As shown, the beam shaping component 10 may further include M optical elements. Wherein, M is a positive integer greater than or equal to 1. The M optical elements are arranged in sequence in a second direction opposite to the first direction. Similar to the N optical elements described above, since the optical element arranged at the end of the M optical elements is different from the M-1 optical elements other than the optical element arranged at the end in terms of structure and function, for the convenience of explanation, the optical element arranged at the end is referred to as the fourth optical element (i.e. Fig.12 The optical element GM shown in FIG. 2 ), the M-1 optical elements other than the fourth optical element GM are referred to as M-1 third optical elements (i.e. Fig.12 That is, the beam shaping component 10 may further include M-1 third optical elements and one fourth optical element GM, and the M-1 third optical elements and the fourth optical element GM are arranged in sequence in a second direction opposite to the first direction.

[0100] In actual operation, since the functions that can be realized by each of the M-1 third optical elements are the same, in order to avoid redundancy, the function of each third optical element will be described below by taking any third optical element of the M-1 third optical elements as an example. The any third optical element is used to decompose the incident light beam propagating in the second direction into the fourth light beam and the fifth light beam, and emit the fourth light beam decomposed according to the fifth deflection angle preset by the any third optical element. At the same time, the any third optical element can also emit the fifth light beam decomposed along the second direction, so as to use the fifth light beam decomposed as the incident light beam of the third optical element adjacent to and arranged behind the any third optical element or the fourth optical element GM. In other words, each of the N-1 third optical elements can be used to decompose the incident light beam propagating in the second direction into the fourth light beam and the fifth light beam, emit the fourth light beam decomposed according to the fifth deflection angle preset by the any third optical element, and emit the fifth light beam decomposed according to the second direction. For example, the third optical element G2 and the third optical element G3 are two adjacent first optical elements, and the third optical element G3 is arranged behind the third optical element G2. The incident light beam of the third optical element G2 is the second light beam emitted by the third optical element G1. The third optical element G2 can decompose its incident light beam into a fourth light beam and a fifth light beam, emit the fourth light beam obtained by decomposition according to its preset fifth deflection angle, and emit the fifth light beam obtained by decomposition to the third optical element G3 along the first direction as the incident light beam of the third optical element G3. The fourth optical element GM is used to reflect its incident light beam, and emit the sixth light beam obtained by reflection according to its preset sixth deflection angle.

[0101] It can be understood that the incident light beam of the third optical element G1 arranged in the first position is usually another incident light beam of the beam shaping component 10 (for the convenience of distinction, the second incident light beam will be used as the description below), and the sixth light beam and the N-1 fourth light beams are also the outgoing light beams of the beam shaping component 10. For the beam shaping component 10 provided in the embodiment of the present application, the propagation direction of the second incident light beam should be the second direction mentioned above.

[0102] It should also be noted that each of the M optical elements is also preset with a deflection angle, and the preset deflection angle of each optical element refers to the angle between the optical axis of the fourth light beam or the sixth light beam emitted by each optical element and the optical axis of the incident light beam. Therefore, the above-mentioned M-1 third optical elements correspond to M-1 fifth deflection angles, which are respectively Fig.12 The fifth deflection angle J1, the first deflection angle J2 and the first deflection angle JM-1 shown in FIG. Similarly, the fourth optical element GM also corresponds to a sixth deflection angle, that is, Fig.12 The sixth deflection angle JM described in.

[0103] It can be understood that, similar to the N optical elements described above, for the M optical elements, the magnitudes of the M deflection angles, namely the fifth deflection angle J1, the fifth deflection angle J2, the fifth deflection angle JM-1 and the sixth deflection angle JM, determine the propagation direction of each of the N-1 fourth light beams and the sixth light beam, and the N-1 fourth light beams and the sixth light beam are part of the outgoing light beam of the beam shaping component 10. Therefore, Fig.12In the case of the structure shown, the shape of the outgoing light beam of the beam shaping component 10 is specifically determined by the magnitudes of the M deflection angles of the fifth deflection angle J1, the fifth deflection angle J2 to the fifth deflection angle JM-1 and the sixth deflection angle JM and the magnitudes of the N deflection angles of the first deflection angle Q1, the first deflection angle Q2 to the first deflection angle QN-1 and the second deflection angle QN mentioned above. When the N deflection angles of the first deflection angle Q1, the first deflection angle Q2 to the first deflection angle QN-1 and the second deflection angle QN increase in sequence, and the M deflection angles of the fifth deflection angle J1, the fifth deflection angle J2 to the fifth deflection angle JM-1 and the sixth deflection angle JM also increase in sequence, the above-mentioned fourth light beams, the sixth light beams, the first light beams and the third light beam can intersect at the same focus, and the shape of the outgoing light beam of the beam shaping component 10 can be a convergent shape. Similarly, when the above-mentioned N deflection angles and M sheet angles are equal, the shape of the outgoing light beam of the beam shaping component 10 is a parallel shape. When the N deflection angles of the first deflection angle Q1, the first deflection angle Q2, the first deflection angle QN-1, and the second deflection angle QN are reduced in sequence, and the M deflection angles of the fifth deflection angle J1, the fifth deflection angle J2, the fifth deflection angle JM-1, and the sixth deflection angle JM are also reduced in sequence, the shape of the outgoing light beam of the beam shaping component 10 is a divergent shape. It should be understood that in actual implementation, the shape of the outgoing light beam of the beam shaping component 10 can also be made into other shapes by setting the sizes of the above-mentioned N deflection angles and M deflection angles, and the present application does not impose specific restrictions on this.

[0104] In the above implementation, M optical elements are added to the beam shaping component 10, so that the beam shaping component 10 can perform beam shaping on another incident light beam through the newly added M optical elements, that is, the beam shaping component 10 can perform beam shaping on two incident light beams at the same time. In this way, the intensity of the output light beam of the beam shaping component 10 can be enhanced, so that the beam shaping component 10 can be applied to scenes with high optical power requirements, and the applicability of the beam shaping component 10 can be improved.

[0105] Optionally, the specific structures, mutual positional relationships and connection methods of the M-1 third optical elements and the fourth optical element GM mentioned above may be the same as the specific structures, mutual positional relationships and connection methods of the N-1 first optical elements and the second optical element LN mentioned above. In order to avoid redundancy, the present application will not repeat the specific structures, mutual positional relationships and connection methods of the M-1 third optical elements and the fourth optical element GM mentioned above. Of course, the specific structures, mutual positional relationships and connection methods of the M-1 third optical elements and the fourth optical element GM mentioned above may also be implemented in other possible ways, as long as their respective functions can be guaranteed, and the present application does not impose specific restrictions on this.

[0106] In one possible implementation, see Fig.13 , Fig.13 is another structural schematic diagram of the beam shaping component provided by the present application. Fig.13 As shown, N is equal to M, the second optical element LN is fixedly connected to the fourth optical element GM, and the optical axes of the incident light beams of the second optical element LN and the fourth optical element GM coincide with each other. That is, the beam shaping component 10 is newly added with N optical elements, specifically including N-1 third optical elements and one fourth optical element GN, and the incident light beam of the optical element arranged first among the newly added N optical elements is the second incident light beam of the beam shaping component 10, and the optical axis of the second incident light beam coincides with the optical axis of the first incident light beam mentioned above.

[0107] It should be noted that, in actual implementation, the second optical element LN and the fourth optical element GM can be connected together via a connecting layer, or can be connected together in a detachable manner. This application does not specifically limit the connection method between the second optical element LN and the fourth optical element GM.

[0108] In a feasible implementation, the fifth deflection angle is the same as the sixth deflection angle, and it can also be understood that the N-1 fourth light beams and the fifth light beam are parallel to each other. In this case, see Fig.14 , Fig.14 is another structural schematic diagram of the beam shaping component provided by the present application. Fig.14 As shown, the beam shaping component 10 may also include M second steering components. Among them, the M-1 third optical elements and the M optical elements of the fourth optical element GM correspond to the M second steering components one by one. In other words, for the M-1 third optical elements and the M optical elements of the fourth optical element GM, each optical element corresponds to one second steering component.

[0109] It should be understood that each second steering component is preset with a seventh deflection angle or an eighth deflection angle, and the seventh deflection angle or the eighth deflection angle preset for each second steering component refers to the angle between the optical axis of the outgoing light beam of each second steering component and the optical axis of the incident light beam. The M-1 third optical elements and the fourth optical element GM are preset with M-1 seventh deflection angles and an eighth deflection angle, which are respectively Fig.14 The seventh deflection angle Y1, the seventh deflection angle Y2, the seventh deflection angle YM-1 and the eighth deflection angle YM shown in FIG. Fig.14 It is also shown that each of the fifth deflection angles and the sixth deflection angle is 90 degrees. In actual implementation, each of the fifth deflection angles and the sixth deflection angle may also be other values, which are not specifically limited here.

[0110] In actual work, since the functions of the second steering component corresponding to each of the above-mentioned M-1 third optical elements are the same, in order to avoid redundancy, the functions of the second steering component corresponding to each of the above-mentioned M-1 third optical elements will be described below by taking the second steering component corresponding to any of the above-mentioned M-1 third optical elements as an example. The second steering component corresponding to any of the above-mentioned M-1 third optical elements can be used to receive the fourth light beam emitted by any of the third optical elements, and emit the fourth light beam according to the seventh deflection angle preset by the second steering component corresponding to the any of the third optical elements. For example, the second steering component corresponding to the third optical element G1 is used to emit the fourth light beam obtained by decomposing the third optical element G1 according to its corresponding seventh deflection angle Y1. The second steering component corresponding to the above-mentioned fourth optical element GM is used to receive the sixth light beam emitted by the fourth optical element GM, and emit the above-mentioned sixth light beam according to its preset eighth deflection angle YM.

[0111] It should be noted that, in actual implementation, the second steering component corresponding to each of the M optical elements may be disposed on the side of each optical element emitting the fourth light beam or the sixth light beam, so as to ensure that the first light beam emitted by each first optical element can reach the second steering component corresponding to each first optical element. The second steering component corresponding to each first optical element may be connected to or independent of each first optical element, and this application does not impose any specific limitation on this.

[0112] In the above implementation, the propagation direction of the fourth light beam emitted by each third optical element and the sixth light beam emitted by the fourth optical element GM is adjusted by the second steering component, so that the deflection angles of the third optical elements and the fourth optical element GM can be the same, thereby making the structural differences between the third optical element and the fourth optical element GM smaller, which is beneficial to the design and production of the third optical element and the fourth optical element GM.

[0113] In some feasible implementations, the second steering component may be an optical wedge. In other words, the second steering components corresponding to each third optical element and the fourth optical element GM are optical wedges. Similarly, using an optical wedge as the second steering component can reduce the design difficulty and cost of the beam shaping component 10.

[0114] It should be understood that in actual implementation, the second steering component may also adopt other feasible structures, such as a flat plate with a gradient refractive index, etc. The present application does not limit the specific implementation method of the second steering component.

[0115] In some feasible implementations, in actual applications, two or more beam shaping components implemented using the structure provided by the present application can be used in combination to achieve multi-dimensional beam shaping. The following takes the use of two beam shaping components in combination as an example. Fig.15 , Fig.15 This is a schematic diagram of an application scenario of multi-dimensional beam shaping provided by this application. Fig.15 As shown, it includes the beam shaping component 10 provided by the present application and the beam shaping component 30 having the same structure as the beam shaping component 10. It should be noted here that Fig.15 The beam shaping components 10 and 30 shown in FIG. 1 are parallel beams, which is only exemplary and not specifically limited. Fig.15 As shown, the beam shaping component 10 performs a first beam shaping process on the first incident beam and / or the second incident beam and emits multiple beams. The beam shaping component 30 uses a certain beam emitted by the beam shaping component 10 as the incident beam, and performs a second beam shaping process on it to emit multiple secondary beams, which is equivalent to performing two different levels of beam shaping processes on the first incident beam and / or the second incident beam, thereby achieving beam shaping in two dimensions. It should be understood that the implementation of beam shaping in more dimensions is basically the same as the implementation of beam shaping in two dimensions described above. To avoid redundancy, this application will not go into details.

[0116] It should be noted that the first incident light beam and the second incident light beam of the beam shaping component 10 can be provided by the same light source or by two different light sources, and the present application does not impose any specific restrictions on this. The light source providing the incident light beam for the beam shaping component 10 can be a fiber laser, an edge emitting laser, a VCSEL laser, etc., and the present application does not impose any specific restrictions on this.

[0117] It should also be noted that the material of the waveguide structure provided in the present application (such as the first waveguide structure and the second waveguide structure described above) can be optical glass, infrared material, or optical crystal. The present application does not make a specific implementation for this, as long as it can meet the design and application requirements of the beam shaping component 10.

[0118] It should also be noted that the connection layer provided in the present application (such as the first connection layer and the second connection layer described above) can be a bonding layer formed by optical adhesives of various materials, such as organic silicone, acrylic resin, unsaturated polyester, polyurethane, epoxy resin, etc. Of course, the connection layer can also be made of other materials with high light transmittance and capable of fixing optical elements, and the present application does not impose specific restrictions on this.

[0119] This application also provides a light source system. Fig.16 , Fig.16 Schematic diagram of a light source system provided by this application. Fig.16 As shown, the light source system 200 may include the beam shaping component 10 and the light source 50 described above. In actual use, the light source 50 is used to provide the beam shaping component 10 with an incident light beam propagating in the first direction and / or the second direction. The beam shaping component 10 is used to shape the incident light beam and emit multiple light beams obtained by the processing according to a preset emission form. The multiple light beams emitted by the beam shaping component 10 are the output light beams of the light source system 200.

[0120] It should be understood that the light source system 200 provided in the present application can be applied to fields that require beam shaping, such as laser processing, additive manufacturing, optical sensing, optical display, and optical communication.

[0121] The present application also provides an optical device. Fig.17 , Fig.17 400 includes the light source system 200 described above. The light source system 200 is used to provide the optical device 400 with the light waves required for its normal operation. It should be understood that Fig.17 Only the light source system 200 is shown. In actual implementation, the optical device 400 also includes other optical modules or optical elements besides the light source system 200, such as a spectrometer, an optical signal processor, etc., which may be determined by the actual form of the optical device 400.

[0122] Optionally, the optical device 400 may specifically be a laser radar, an optical transmitter, an optical receiver or the like.

[0123] In the embodiments provided in the present application, it should be understood that the disclosed systems, devices or methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0124] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0125] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0126] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0127] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0128] Those skilled in the art should be aware that in one or more of the above examples, the functions described in this application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

[0129] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation methods of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the present application should be included in the scope of protection of the present application.

Claims

1. A beam shaping component, characterized in that: The beam shaping component includes N-1 first optical elements and one second optical element, the N-1 first optical elements and the second optical element are arranged sequentially in a first direction, and N is an integer greater than or equal to 2; Any one of the N-1 first optical elements is used to decompose the incident light beam propagating in the first direction into a first light beam and a second light beam, emit the first light beam according to a first deflection angle preset by the any one of the first optical elements, and emit the second light beam along the first direction so as to use the second light beam as an incident light beam for a first optical element or the second optical element adjacent to the any one of the first optical elements; The second optical element is used to reflect the incident light beam and emit the third light beam obtained by reflection according to a second deflection angle preset by the second optical element.

2. The beam shaping component according to claim 1, characterized in that: Any of the first optical elements comprises a first optical film and a first waveguide structure for setting the first optical film; The first optical film is used to reflect and transmit the incident light beam of any first optical element to obtain the first light beam and the second light beam, emit the first light beam according to the first deflection angle, and emit the second light beam along the first direction.

3. The beam shaping component according to claim 2, characterized in that: The second optical element comprises a second optical film and a second waveguide structure for setting the second optical film; The second optical film is used for reflecting the incident light beam of the second optical element, and emitting the third light beam obtained by reflection according to the second deflection angle preset by the second optical element.

4. The beam shaping component according to claim 3, characterized in that: The first optical film is disposed on a first surface of the first waveguide structure along the first direction; The second optical film is disposed on a second surface of the second waveguide structure along the first direction.

5. The beam shaping component according to claim 4, characterized in that: The first waveguide structure included in the first optical element arranged in the first position is in the shape of a triangular prism whose bottom surface is a right triangle, the first waveguide structure included in each of the N-2 first optical elements except the first optical element arranged in the first position and the second waveguide structure are in the shape of a quadrangular prism, and the side edges of the first waveguide structure included in the first optical element arranged in the first position, the side edges of the first waveguide structure included in each of the N-2 first optical elements and the side edges of the second waveguide structure are all perpendicular to the first direction.

6. The beam shaping component according to claim 3, characterized in that: The first optical film is disposed inside the first waveguide structure, and the second optical film is disposed inside the second waveguide structure.

7. The beam shaping component according to claim 6, characterized in that: The first waveguide structure and the second waveguide structure are in a cube shape and have the same size.

8. The beam shaping component according to any one of claims 1 to 7, characterized in that: The first deflection angle and the second deflection angle are the same, the beam shaping component further includes N first steering components, and the N-1 first optical elements and the second optical element correspond one-to-one to the N first steering components; The first deflection component corresponding to any of the first optical elements is used to receive the first light beam emitted by any of the first optical elements, and emit the first light beam according to a preset third deflection angle; The first deflection component corresponding to the second optical element is used for receiving the third light beam emitted by the second optical element, and emitting the third light beam at a preset fourth deflection angle.

9. The beam shaping component according to claim 8, characterized in that: Any first steering component among the N first steering components is fixedly connected to the first optical element or the second optical element corresponding to the any first steering component through the first connecting layer.

10. The beam shaping component according to claim 9, characterized in that: The first deflection component is an optical wedge.

11. The beam shaping component according to any one of claims 1 to 10, characterized in that: The propagation directions of the first light beam output by each of the N-1 first optical elements and the third light beam output by the second optical element are divergent, or the first light beam output by each of the first optical elements and the third light beam output by the second optical element are parallel to each other, or the first light beam output by each of the first optical elements and the third light beam output by the second optical element intersect at one point.

12. The beam shaping component according to any one of claims 1 to 11, characterized in that: Any two adjacent optical elements among the N-1 first optical elements and the second optical elements are fixedly connected via a second connecting layer.

13. The beam shaping component according to any one of claims 1 to 12, characterized in that: The beam shaping component further includes M-1 third optical elements and one fourth optical element, wherein the M-1 third optical elements and the fourth optical element are arranged in sequence in a second direction, the second direction is opposite to the first direction, and M is an integer greater than or equal to 2; Any one of the M-1 third optical elements is used to decompose the incident light beam propagating in the second direction into a fourth light beam and a fifth light beam, emit the fourth light beam according to a fifth deflection angle preset by the any one of the third optical elements, and emit the fifth light beam along the second direction so as to use the fifth light beam as an incident light beam for a third optical element adjacent to the any one of the third optical elements or the fourth optical element; The fourth optical element is used to reflect the incident light beam, and emit a sixth light beam obtained by reflection according to a sixth deflection angle preset by the fourth optical element.

14. The beam shaping component according to claim 13, characterized in that: N is equal to M, the second optical element is fixedly connected to the fourth optical element, and the optical axis of the incident light beam of the second optical element coincides with the optical axis of the incident light beam of the fourth optical element.

15. The beam shaping component according to claim 13 or 14, characterized in that: The fifth deflection angle is the same as the sixth deflection angle, the beam shaping component further includes M second steering components, and the M-1 third optical elements and the second optical element correspond one-to-one to the M second steering components; The second deflection component corresponding to any of the third optical elements is used to receive the fourth light beam emitted by any of the third optical elements, and emit the fourth light beam according to a preset seventh deflection angle; The second deflection component corresponding to the fourth optical element is used for receiving the sixth light beam emitted by the fourth optical element, and emitting the sixth light beam according to a preset eighth deflection angle.

16. The beam shaping component according to claim 15, characterized in that: The second deflection component is an optical wedge.

17. A light source system, characterized in that: The light source system comprises a beam shaping component and a light source as claimed in any one of claims 1 to 16; The light source is used to provide the beam shaping component with an incident light beam propagating in a first direction and / or a second direction, wherein the first direction is opposite to the second direction; The beam shaping component is used to perform beam shaping on the incident light beam.

18. An optical device, characterized in that: The optical device comprises the light source system of claim 17.

Images