CN219552698U - Anti-reflection collimator - Google Patents

Abstract

The utility model relates to an anti-reflection collimator, which comprises an 8-degree pyramid quartz end cap, an 8-degree angle compensation sheet, a light-transmitting small hole and a collimating lens, wherein the 8-degree pyramid quartz end cap, the 8-degree angle compensation sheet, the light-transmitting small hole and the collimating lens are sequentially arranged in a collimator body along a light path; the 8-degree pyramid-shaped quartz end cap is connected with the optical fiber; the 8-degree angle compensation sheet is arranged in a compensation sheet groove in the compensation copper shaft; the compensation copper shaft is in threaded connection with the collimator body; the light-transmitting small hole is a small hole with the aperture smaller than the diameter of the 8-degree angle compensation sheet formed on the compensation copper shaft; the collimating lens is movably arranged at the light-emitting end of the compensation copper shaft. The utility model greatly reduces reflected light through the 8-degree pyramid-shaped quartz end cap, the 8-degree angle compensation sheet and the light-transmitting small hole, increases the stability of laser, has simple structure and easy adjustment, and is very suitable for production.

Description

Anti-reflection collimator

Technical Field

The utility model relates to the technical field of lasers, in particular to an anti-reflection collimator.

Background

With the development of fiber lasers, the laser processing industry develops rapidly, and laser processing materials are more and more, however, most materials have certain reflection on laser, and the stability of the laser is affected.

An antireflection optical fiber collimator structure with the patent number of CN202122187467.X and the angle of 8 degrees of a compensation optical fiber is disclosed, which comprises a lens barrel and a copper shaft which are connected with each other; a lens ring and a copper shaft are movably connected in the lens barrel; a lens is arranged in the lens ring; the copper shaft comprises a copper shaft front end and a copper shaft rear end; an oblique circular hole is formed in the front end of the copper shaft; the included angle between the bevel round hole and the horizontal plane is 4 degrees; the rear end of the bevel round hole is connected with a horizontal round hole penetrating through the rear end of the copper shaft; an 8-degree ceramic ferrule is arranged in the bevel round hole; the 8-degree ceramic ferrule is connected with an 8-degree energy-transmitting optical fiber end cap positioned in the horizontal round hole. The optical fiber can be compensated for an angle of 8 degrees through a mechanical angle of 4 degrees, the optical fiber can be ensured to be horizontally output at the center of a copper shaft, an optical fiber end cap is arranged in a ceramic ferrule, and anti-reflection light is realized by using the angle of 8 degrees. The structure needs to ensure the output of horizontal light by a mechanical angle of 4 degrees, has certain requirements, and meanwhile, the reflected light can be reduced to a certain extent by an angle of 8 degrees, and can not be further reduced, so that a collimator with stronger anti-reflection light capability and simpler structure is needed.

Disclosure of Invention

First, the technical problem to be solved

In order to solve the problems in the prior art, the utility model provides the collimator which is simple in structure, low in cost and high in anti-reflection light capability.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

an anti-reflective collimator, characterized by: the collimator comprises an 8-degree pyramid quartz end cap, an 8-degree angle compensation sheet, a light-transmitting small hole and a collimating lens which are sequentially arranged in a collimator body along a light path; the 8-degree pyramid-shaped quartz end cap is connected with the optical fiber; the 8-degree angle compensation sheet is arranged in a compensation sheet groove in the compensation copper shaft; the compensation copper shaft is in threaded connection with the collimator body; the light-transmitting small hole is a small hole with the aperture smaller than the diameter of the 8-degree angle compensation sheet formed on the compensation copper shaft; the collimating lens is movably arranged at the light-emitting end of the compensation copper shaft.

Further, a first channel, a second channel and a third channel are sequentially formed in the collimator body along the light path; an optical cable is fixedly arranged in the first channel; the second channel is internally and fixedly provided with an optical fiber; and an 8-degree pyramid-shaped quartz end cap and a compensation copper shaft are arranged in the third channel.

Further, the optical cable is fixed through confidential screws arranged in a plurality of optical cable fixing holes communicated with the first channel on the collimator body; the optical fibers are fixed through dispensing arranged in a plurality of optical fiber fixing holes communicated with the second channel; the 8-degree pyramid-shaped quartz end caps are fixed through glue arranged in a plurality of end cap fixing holes communicated with the third channel; the compensation copper shaft is fixed through screws arranged in a plurality of copper shaft threaded holes communicated with the third channel.

Further, the light-transmitting small holes are closely attached to the 8-degree angle compensation sheet.

Further, a thread groove is formed at the light emergent end of the compensation copper shaft; the collimating lens is connected in the thread groove through the lens ring thread.

(III) beneficial effects

The beneficial effects of the utility model are as follows: the reflection light is greatly reduced through the 8-degree pyramid-shaped quartz end cap, the 8-degree angle compensation sheet and the light-transmitting small hole, the stability of laser is improved, and the structure is simple and easy to adjust, so that the device is very suitable for production.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

[ reference numerals description ]

The collimator comprises a 1-collimator body, a 11-first channel, a 12-optical cable fixing hole, a 13-optical fiber fixing hole, a 14-second channel, a 15-end cap fixing hole, a 16-copper shaft threaded hole, a 17-8-degree pyramid-shaped quartz end cap, a 18-third channel, a 2-compensation copper shaft, a 21-compensation sheet groove, a 22-8-degree angle compensation sheet, a 23-light-transmitting small hole, a 24-thread groove, a 31-collimating lens and a 32-mirror ring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In a first embodiment, please refer to fig. 1:

an anti-reflection collimator comprises an 8-degree pyramid quartz end cap 17, an 8-degree angle compensation sheet 22, a light transmission small hole 23 and a collimating lens 31 which are sequentially arranged in a collimator body 1 along a light path; the light passes through the 8-degree pyramid-shaped quartz end cap 17 and the 8-degree angle compensation sheet 22 and then is horizontally output, and finally passes through the light-transmitting small hole 23 and is output after being collimated by the collimating lens 31, and the directivity of the light is adjusted by adjusting the relative positions of the 8-degree pyramid-shaped quartz end cap 17 and the 8-degree angle compensation sheet 22, so that the light passes through the light-transmitting small hole 23 horizontally, the light can be uniformly emitted, and the light can better pass through the light-transmitting small hole 23, the aperture of the light-transmitting small hole 23 is slightly larger than the size of a light spot, the reflected light can be blocked outside, and the possibility of entering the inside is reduced; the light-transmitting small hole 23 is a small hole formed on the compensation copper shaft 2, the length of the hole is not recommended to be too long, the light emission is influenced due to the fact that the hole is too long, the directivity of light is required to be adjusted by adjusting the relative positions of the 8-degree pyramid-shaped quartz end cap 17 and the 8-degree angle compensation piece 22, the adjustment difficulty is remarkably increased if the depth of the hole is too deep, further, the light reflected by the small hole 23 is mostly blocked by the surrounding part of the light-transmitting small hole 23 due to the fact that the copper shaft is not light-transmitting, only a very small part of light can be reflected back through the light-transmitting small hole 23, the reflected light can pass through the 8-degree pyramid-shaped quartz end cap 17, the 8-degree pyramid-shaped quartz end cap 17 also has certain anti-reflection capability, and is stronger than the 8-degree pyramid-shaped quartz end cap anti-reflection capability, and the reflected partial light can be further weakened, and therefore the stability of the collimator is greatly improved.

A first channel 11, a second channel 14 and a third channel 18 are sequentially formed in the collimator body 1 along the light path; an optical cable is fixedly arranged in the first channel 11; an optical fiber is fixedly arranged in the second channel 14, and an 8-degree pyramid-shaped quartz end cap 17 is connected with the optical fiber; an 8-degree pyramid-shaped quartz end cap 17 and a compensation copper shaft 2 are arranged in the third channel 18; the optical cable is fixed by confidential screws arranged in a plurality of optical cable fixing holes 12 communicated with the first channel 11 on the collimator body 1; the optical fibers are fixed through dispensing arranged in a plurality of optical fiber fixing holes 13 communicated with the second channel 14, so that the optical fibers are prevented from shaking; the 8-degree pyramid-shaped quartz end caps 17 are fixed through glue arranged in a plurality of end cap fixing holes 15 communicated with the third channels 18; the compensation copper shaft 2 is fixed by screws arranged in a plurality of copper shaft threaded holes 16 communicated with the third channel 18; before the compensation copper shaft 2 is fixed, the compensation copper shaft 2 is in threaded connection with the third channel 18, the position can be adjusted by rotating the compensation copper shaft 2, so that the directivity of emergent light can be adjusted, the emergent light can horizontally pass through the light-transmitting small hole 23, the light-transmitting small hole 23 is a small hole with the aperture smaller than the diameter of the 8-degree angle compensation sheet 22 formed on the compensation copper shaft 2, and after the position is adjusted, the position is fixed by a screw arranged in the copper shaft threaded hole 16; the 8-degree angle compensation piece 22 is arranged in a compensation piece groove 21 in the compensation copper shaft 2; the collimating lens 31 is movably arranged at the light-emitting end of the compensation copper shaft 2; the light-transmitting small hole 23 is closely attached to the 8-degree angle compensation sheet 22, and the light-transmitting small hole 23 and the compensation sheet groove 21 are equivalent to form a stepped hole, so that the 8-degree angle compensation sheet 22 can be fixed; a thread groove 24 is formed at the light outlet end of the compensation copper shaft 2; the collimating lens 31 is screwed into the thread groove 24 through the lens ring 32, and the focal length is adjusted through the lens ring 32 to collimate light and output.

In one embodiment of the present utility model, the light-transmitting aperture 23 is a small light channel, the size of which is slightly larger than the transmission spot, and most of the light is blocked when the light is reflected there, so as to attenuate the reflected light; the compensating copper shaft 2 is provided with a compensating sheet groove 21 for placing a small-sized 8-degree angle compensating sheet 22, wherein the 8-degree angle compensating sheet 22 is slightly larger than a transmission light spot, and when light is reflected in, most of light scatters at two ends of the compensating sheet to weaken reflected light; the 8-degree fiber quartz end cap 17 itself also has certain anti-reflection capability; the reflected light is greatly reduced through the small light-transmitting hole 23 and the small 8-degree angle compensating plate 22, so that the stability of laser is greatly improved.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims (5)

1. An anti-reflective collimator, characterized by: the collimator comprises an 8-degree pyramid quartz end cap, an 8-degree angle compensation sheet, a light-transmitting small hole and a collimating lens which are sequentially arranged in a collimator body along a light path; the 8-degree pyramid-shaped quartz end cap is connected with the optical fiber; the 8-degree angle compensation sheet is arranged in a compensation sheet groove in the compensation copper shaft; the compensation copper shaft is in threaded connection with the collimator body; the light-transmitting small hole is a small hole with the aperture smaller than the diameter of the 8-degree angle compensation sheet formed on the compensation copper shaft; the collimating lens is movably arranged at the light-emitting end of the compensation copper shaft.

2. An anti-reflective collimator according to claim 1, characterized in that: a first channel, a second channel and a third channel are sequentially formed in the collimator body along the light path; an optical cable is fixedly arranged in the first channel; the second channel is internally and fixedly provided with an optical fiber; and an 8-degree pyramid-shaped quartz end cap and a compensation copper shaft are arranged in the third channel.

3. An anti-reflective collimator according to claim 2, characterized in that: the optical cable is fixed by confidential screws arranged in a plurality of optical cable fixing holes communicated with the first channel on the collimator body; the optical fibers are fixed through dispensing arranged in a plurality of optical fiber fixing holes communicated with the second channel; the 8-degree pyramid-shaped quartz end caps are fixed through glue arranged in a plurality of end cap fixing holes communicated with the third channel; the compensation copper shaft is fixed through screws arranged in a plurality of copper shaft threaded holes communicated with the third channel.

4. An anti-reflective collimator according to claim 1, characterized in that: the light-transmitting small holes are tightly attached to the 8-degree angle compensation sheet.

5. An anti-reflective collimator according to claim 1, characterized in that: a thread groove is formed at the light outlet end of the compensation copper shaft; the collimating lens is connected in the thread groove through the lens ring thread.