Distributed optical fiber multi-point light source and multi-line light source

Abstract

The utility model discloses a distributed optical fiber multi-point light source and a multi-line light source. The distributed optical fiber multi-point light source comprises an LD light source, an optical fiber coupler and an optical fiber beam splitter, the LD light source, the optical fiber coupler and the optical fiber beam splitter are sequentially arranged in the light path direction. The optical fiber coupler is used for coupling the LD light source into an optical fiber; the optical fiber beam splitter is used for splitting the light source coupled into the optical fiber to generate a point light source array; the multi-line light source comprises a distributed optical fiber multi-point light source and an optical lens group, the optical lens group is used for expanding a point light source array generated by the distributed optical fiber multi-point light source into a line light source array; according to the utility model, a single-point or multi-point light source is expanded into a plurality of beams by adopting an optical fiber or waveguide mode, so that a multi-point light source array is generated, and the test of one surface can be easily realized.

Description

Technical Field

[0001] The utility model relates to the technical field of light sources, and more specifically to a distributed optical fiber multi-point light source and a multi-line light source. Background Art

[0002] There are two main types of traditional full-array light sources: EEL and VCSEL. Currently, EEL only has a single point on the market. The more mature way to achieve multiple points is to add DOE devices for beam splitting, but DOE has the problem of uneven light spots. VCSEL does not have ready-made products in some commonly used bands. To achieve multiple-point light sources, the cost is high and the process is complicated.

[0003] Therefore, how to provide a distributed optical fiber multi-point light source array is a problem that those skilled in the art need to solve urgently. Utility Model Content

[0004] In view of this, the utility model provides a distributed optical fiber multi-point light source and a multi-line light source to solve some of the technical problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A distributed optical fiber multi-point light source, comprising: an LD light source, an optical fiber coupler and an optical fiber beam splitter;

[0007] The LD light source, the optical fiber coupler and the optical fiber beam splitter are arranged in sequence along the optical path direction;

[0008] Fiber coupler, used to couple the LD light source into the optical fiber;

[0009] The fiber beam splitter is used to split the light source coupled into the optical fiber to generate a point light source array.

[0010] Preferably, the optical fiber coupler and the optical fiber beam splitter are connected via optical fiber.

[0011] Preferably, the fiber optic beam splitter includes a plurality of distributed optical fibers, which are used to couple the fiber optic coupler to the light source in the optical fiber to split and output point light sources arranged in various arrays.

[0012] Preferably, the distributed optical fiber multi-point light source further comprises a focusing lens group;

[0013] Along the optical path, a focusing lens group is arranged behind the beam splitter to focus various arrays of point light sources generated by the beam splitter.

[0014] Preferably, the focal length of the focusing lens group and the spacing between the point light sources are set according to actual needs.

[0015] A distributed optical fiber multi-line light source, comprising the distributed optical fiber multi-point light source and an optical lens group;

[0016] The optical lens group is used to expand a point light source array generated by a distributed optical fiber multi-point light source into a line light source array.

[0017] Preferably, the optical lens group includes a cylindrical lens or a Powell prism.

[0018] It can be seen from the above technical solutions that compared with the prior art, the utility model discloses a distributed optical fiber multi-point light source and a multi-line light source, which uses optical fiber or waveguide to expand a single point or multi-point light source into multiple beams, thereby generating a whole array of multi-point light sources, which helps to easily realize the test of a surface. Through the optical fiber, the selectivity of the multi-point light source is wider, and it can be applied to many fields such as handheld three-dimensional scanners, multi-point mapping, and lidar. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 The attached drawing is a schematic diagram of the structure of a distributed optical fiber multi-point light source and a multi-line light source provided by the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model embodiment discloses a distributed optical fiber multi-point light source, such as Figure 1 , including: LD light source, fiber coupler and fiber beam splitter;

[0023] The LD light source, the optical fiber coupler and the optical fiber beam splitter are arranged in sequence along the optical path direction;

[0024] Fiber coupler, used to couple the LD light source into the optical fiber;

[0025] The fiber beam splitter is used to split the light source coupled into the optical fiber to generate a point light source array.

[0026] In order to further implement the above technical solution, the optical fiber coupler and the optical fiber splitter are connected via optical fiber.

[0027] In order to further implement the above technical solution, the fiber optic splitter includes a plurality of distributed optical fibers, which are used to couple the fiber optic coupler to the light source in the optical fiber to split and output various point light sources arranged in different arrays, such as Figure 1 out1, out2, out3…out_N in.

[0028] In order to further implement the above technical solution, a distributed optical fiber multi-point light source also includes a focusing lens group;

[0029] Along the optical path, a focusing lens group is arranged behind the beam splitter to focus various arrays of point light sources generated by the beam splitter.

[0030] In order to further implement the above technical solution, the focal length of the focusing lens group and the spacing between the point light sources are set according to actual needs.

[0031] A distributed optical fiber multi-line light source, comprising a distributed optical fiber multi-point light source and an optical lens group;

[0032] The optical lens group is used to expand a point light source array generated by a distributed optical fiber multi-point light source into a line light source array.

[0033] In order to further implement the above technical solution, the optical lens group includes a cylindrical lens or a Powell prism.

[0034] In this embodiment, a distributed optical fiber multi-line light source is placed in the 3D scanning device to meet the multi-line light source requirements.

[0035] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A distributed optical fiber multi-point light source, characterized in that: include: LD light source, fiber coupler and fiber beam splitter; The LD light source, the optical fiber coupler and the optical fiber beam splitter are arranged in sequence along the optical path direction; Fiber coupler, used to couple the LD light source into the optical fiber; The fiber beam splitter is used to split the light source coupled into the optical fiber to generate a point light source array.

2. A distributed optical fiber multi-point light source according to claim 1, characterized in that: The optical fiber coupler and the optical fiber splitter are connected via optical fiber.

3. A distributed optical fiber multi-point light source according to claim 1, characterized in that: The optical fiber beam splitter includes a plurality of distributed optical fibers, which are used to couple the optical fiber coupler to the light source in the optical fiber to split the light source and output various point light sources arranged in different arrays.

4. A distributed optical fiber multi-point light source according to claim 1, characterized in that: Also includes a focusing lens group; Along the optical path, a focusing lens group is arranged behind the beam splitter to focus various arrays of point light sources generated by the beam splitter.

5. A distributed optical fiber multi-point light source according to claim 4, characterized in that: The focal length of the focusing lens group and the spacing between the point light sources are set according to actual needs.

6. A distributed optical fiber multi-line light source, characterized in that: A distributed optical fiber multi-point light source and an optical lens assembly comprising any one of claims 1 to 5; The optical lens group is used to expand a point light source array generated by a distributed optical fiber multi-point light source into a line light source array.

7. A distributed optical fiber multi-line light source according to claim 6, characterized in that: The optical lens group includes a cylindrical lens or a Powell prism.

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