CN115655664A - Device, system and method for measuring fiber outlet angle of optical fiber connector - Google Patents
Device, system and method for measuring fiber outlet angle of optical fiber connector Download PDFInfo
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- CN115655664A CN115655664A CN202211287495.1A CN202211287495A CN115655664A CN 115655664 A CN115655664 A CN 115655664A CN 202211287495 A CN202211287495 A CN 202211287495A CN 115655664 A CN115655664 A CN 115655664A
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Abstract
The invention provides a device, a system and a method for measuring the fiber outlet angle of an optical fiber connector, wherein the device comprises a clamp for fixing the optical fiber connector; the optical fiber connector is used for connecting the optical fiber with the optical fiber connector; the stray light receiving unit is used for receiving and absorbing the energy of the first light beam; the light spot receiving unit is used for blocking the second light beam to form a light spot image; the optical imaging unit is used for converting an optical signal of the light spot image into a digital signal; and the electronic equipment is used for acquiring the digital signal, capturing the position of the light spot image on the optical imaging unit in the process of rotating the optical fiber connector for one circle, calculating the distance between any two light spot images, and calculating the fiber outlet angle of the optical fiber connector according to the distance. The invention reduces the operation requirement of detecting the fiber outlet angle of the optical fiber connector on personnel and improves the detection efficiency.
Description
Technical Field
The invention relates to the technical field of lasers, in particular to a device, a system and a method for measuring a fiber outlet angle of an optical fiber connector.
Background
The fiber coupled semiconductor laser system is used more and more widely in the fields of industrial welding, processing and the like, and the requirement on the state of the output light beam is higher and higher. For some metal optical fiber connectors similar to SMA905, when an optical fiber is fixed in the optical fiber connector, due to the machining tolerance of the optical fiber connector ferrule, an axial angle between the optical fiber and the aperture of the optical fiber connector ferrule is easy to occur, so that a certain included angle is formed between an emergent light beam and the direction of the connector ferrule.
In some processing fields, a lens is added at the end of an optical fiber connector of a semiconductor laser system to shape a light beam for use, and then requirements are provided for the angle of the light beam output by the optical fiber connector.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: at present, a high-power microscope is often used in laser production to observe the end face of an optical fiber connector to check the angle problem of the optical fiber. The method has low detection efficiency and higher requirement on the operation of personnel, and is not suitable for mass production and use.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention aims to provide a device, a system and a method for measuring the fiber outgoing angle of an optical fiber connector, which improve the detection efficiency of detecting the fiber outgoing angle of an optical fiber and are suitable for mass detection.
In order to achieve the above object, a first aspect of the present invention provides an optical fiber connector outgoing angle measuring apparatus, including:
the clamp is used for fixing the optical fiber connector;
the optical fiber connector comprises a light splitting unit, a light source and a light source, wherein the light splitting unit is used for splitting a light beam emitted by the optical fiber connector into a first light beam and a second light beam which are intersected, the first light beam penetrates through the light splitting unit, and the light beam is reflected by the light splitting unit to form the second light beam;
the stray light receiving unit is used for receiving and absorbing the energy of the first light beam;
the light spot carrying unit is used for blocking the second light beam to form a light spot image;
the optical imaging unit is used for converting an optical signal of the light spot image into a digital signal;
and the electronic equipment is used for acquiring the digital signal, capturing the position of the optical fiber connector on the optical imaging unit in the process of rotating for one circle, calculating the distance between any two light spot images, and calculating the fiber outlet angle of the optical fiber connector according to the distance.
According to the optical fiber connector fiber outlet angle measuring device provided by the embodiment of the invention, the fiber outlet angle of the optical fiber connector is obtained through calculation by measuring the distance between the two light spot images of the second light beam on the optical imaging unit, compared with the existing method for observing the optical fiber connector by using a high-power microscope, the detection is simple to operate, and the accuracy of the measuring result is improved.
According to an embodiment of the invention, further comprising a base, the clamp comprises:
the fixing plate is arranged on the base, and at least one hole site for fixing the optical fiber connector is formed in the fixing plate.
According to an embodiment of the present invention, the light splitting unit includes:
a pillar disposed on the base;
the clamping block is arranged on the strut;
and the light splitting prism is arranged between the fixture block and the top surface of the support column.
According to an embodiment of the present invention, the stray light receiving unit is adjacently disposed at one side of the base.
According to an embodiment of the present invention, the spot taking-up unit includes:
the support is arranged on the base;
the first support is arranged on the support, and two ends of the first support extend upwards;
the screen is arranged on the first support, and a first surface of the screen is opposite to the clamp;
and the pressing strips are arranged at two ends of the screen and used for fixing the screen at two ends of the first support.
According to an embodiment of the present invention, the optical imaging unit includes:
the second bracket is arranged on the base;
the lens is arranged on the second support, is opposite to the second surface of the screen and is used for acquiring the light spot image on the second surface of the screen;
and the area array image sensor is arranged on the second support and used for converting the optical signal of the light spot image into a digital signal.
According to an embodiment of the invention, the electronic device is further configured to:
according to the formula
Calculating the distance d between any two light spot images on the area array image sensor, wherein sigma is the pixel size of the area array image sensor, (x 1, y 1) is the coordinate representation of the center of the first light spot image, and (x 2, y 2) is the coordinate representation of the center of the second light spot image;
comparing to obtain the maximum distance d between any two light spot images on the area array image sensor max ；
According to the formula
Calculating to obtain the maximum distance L between the spot images on the screen, wherein D is the distance between the screen and the lens, and f is the focus of the lensDistance;
according to the formula
And calculating to obtain a fiber outlet angle alpha of the optical fiber connector, wherein m is the distance from the optical fiber connector to the screen.
A second aspect of the present invention provides an optical fiber connector outgoing angle measuring system, which includes a laser and the optical fiber connector outgoing angle measuring apparatus according to the first aspect.
The third aspect of the present invention provides a method for measuring an outgoing angle of an optical fiber connector, including:
fixing an optical fiber connector of a laser on a clamp, and starting the laser to enable the laser to emit light beams;
the light beam emitted by the laser is divided into a first light beam and a second light beam which are intersected, wherein the first light beam penetrates through the light splitting unit to enter the stray light receiving unit and is absorbed by the stray light receiving unit;
the light spot bearing unit forms a light spot image for the second light beam, and the optical imaging unit converts an optical signal of the light spot image into a digital signal;
rotating the optical fiber connector for one circle, calculating the distance between any two light spot images on the optical imaging unit, and comparing to obtain the maximum distance between the two light spot images on the optical imaging unit;
calculating to obtain the maximum distance between the two light spot images on the light spot bearing unit according to the maximum distance between the two light spot images on the optical imaging unit;
and calculating the fiber outlet angle of the optical fiber connector according to the maximum distance between the two light spot images on the light spot bearing unit.
According to one embodiment of the invention, the light splitting unit and the optical imaging unit are respectively positioned at two sides of the spot receiving unit.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an optical fiber connector outgoing angle measuring device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a light splitting device of an optical fiber connector outgoing angle measuring apparatus according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a fiber connection head outgoing angle measuring method according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a fiber outlet angle measuring system of an optical fiber connector according to an embodiment of the present invention.
Fig. 5 is a schematic flow chart illustrating an implementation of the method for measuring an outgoing angle of an optical fiber connector according to an embodiment of the present invention.
Fig. 6 is an operation interface of a method for measuring an outgoing angle of an optical fiber connector according to an embodiment of the present invention.
Description of the reference numerals:
the device comprises a clamp 1, a beam splitting unit 2, a stray light receiving unit 3, a light spot receiving unit 4, an optical imaging unit 5, a base 6, an optical fiber connector 7, a first light spot 8, a second light spot 9, a fixing plate 11, a hole site 12, a support 21, a fixture block 22, a beam splitting prism 23, a screen 41, a first support 42, a pressing strip 43, a support 44, a lens 51, a planar array image sensor 52 and a second support 53.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic structural diagram of an optical fiber connector outgoing angle measuring apparatus according to an embodiment of the present invention. The fiber outlet angle of the optical fiber connector refers to an included angle between the axis of the optical fiber and the axis of the aperture of the inner ferrule of the optical fiber connector.
Referring to fig. 1 to 3, an optical fiber connector outgoing angle measuring apparatus includes a fixture 1, a light splitting unit 2, a stray light receiving unit 3, a light spot receiving unit 4, an optical imaging unit 5, and an electronic device. Wherein:
the clamp 1 is used for fixing the optical fiber connector 7. In one embodiment, the fiber connector 7 is disposed through the fixture 1. The optical fiber connector 7 can rotate around the axial direction of the optical fiber connector on the clamp 1.
The light splitting unit 2 is configured to split the light beam emitted from the optical fiber connector 7 into a first light beam and a second light beam, where the first light beam passes through the light splitting unit 2, and the light beam emitted from the optical fiber connector 7 is reflected by the light splitting unit 2 to form the second light beam. The energy of the first beam is greater than the energy of the second beam.
The stray light receiving unit 3 is used for receiving and absorbing the energy of the first light beam. The output energy of the laser beam is very large, so that the first beam with larger energy needs to be absorbed during testing, the damage to an optical element is avoided, and the safety in the testing process is ensured.
The spot receiving unit 4 is used for blocking the second light beam to form a spot image. In one embodiment, the spot receiving unit 4 has light transmittance, and the spot images can be seen on both the front and back surfaces of the spot receiving unit 4.
The optical imaging unit 5 is configured to convert an optical signal of the spot image into a digital signal. The digital signal is easy to store and has high processing speed.
The electronic equipment is used for acquiring digital signals, capturing the position of a light spot image on the optical imaging unit 5 in the process of rotating the optical fiber connector 7 for one circle, calculating the distance between any two light spot images, and calculating the fiber outlet angle of the optical fiber connector according to the distance. Alternatively, the electronic device may be a computer, a cell phone, a controller, or the like. The rotation of the optical fiber connector 7 can be manual rotation or motor-driven rotation.
According to the optical fiber connector fiber outlet angle measuring device provided by the embodiment of the invention, the fiber outlet angle of the optical fiber connector is obtained through calculation by measuring the distance between the two light spot images of the second light beam on the optical imaging unit, compared with the existing method for observing the optical fiber connector by using a high-power microscope, the detection is simple to operate, and the accuracy of the measuring result is improved.
In some embodiments, as shown in fig. 1 to 3, the fiber connector outgoing angle measuring apparatus further includes a base 6, and the clamp 1 includes a fixing plate 11. The fixing plate 11 is arranged on the base 6, and the fixing plate 11 has at least one hole 12 for fixing the optical fiber connector 7. The number and inner diameter of the holes 12 can be set differently according to the type of the optical fiber connector 7. The optical fiber connector 7 penetrates into the hole site 12, and the axis of the optical fiber connector 7 is collinear with the central axis of the hole site 12.
In one example, the light splitting unit 2 includes a pillar 21, a block 22, and a splitting prism 23. The pillar 21 is provided on the base 6, and the latch 22 is provided on the pillar 21. The dichroic prism 23 is disposed between the latch 22 and the top surface of the stay 21. Alternatively, the latch 22 is L-shaped, one surface of the latch 22 is fixed to a side surface of the pillar 21, and the other surface of the latch 22 is located above the pillar 21, so that the spectroscope 23 is pressed against the pillar 21. Optionally, the beam splitter prism 23 is a right-angle prism. The inclined surface of the beam splitter prism 23 is arranged adjacent to the optical fiber connector 7. The stray light receiving unit 3 is adjacently disposed on one side of the base 6, and is opposed to one right-angled surface of the beam splitter prism 23.
In one example, spot-receiving unit 4 includes a screen 41, a first bracket 42, a pressing bar 43, and a support 44. The seat 44 is provided on the base 6. The first bracket 42 is disposed on the support 44, and both ends of the first bracket 42 extend upward. The screen 41 is mounted on a first support 42, and a first surface of the screen 41 is disposed opposite to the jig 1. Pressing bars 43 are provided at both ends of the screen 41 for fixing the screen 41 at both ends of the first bracket 42. In one example, the screen 41 may be a curtain, the screen 41 being perpendicular to the axis of the fibre optic connector 7. For better imaging, the position of the screen 41 can be adjusted along the length of the base 6 by adjusting the position of the support 44 or the first bracket 42.
In one example, the optical imaging unit 5 includes a lens 51, a second support 53, and an area array image sensor 52. The second bracket 53 is provided on the base 6. The lens 51 is disposed on the second support 53, and the lens 51 is disposed opposite to the second surface of the screen 41, and is used for acquiring the light spot image on the second surface of the screen 41 and imaging the light spot image on the area array image sensor 52. The area array image sensor 52 is disposed on the second support 53, and converts an optical signal of the spot image into a digital signal. In one example, the area array image sensor is a Charge Coupled Device (CCD), which has the advantages of small volume and low noise.
In one example, the electronic device is further to:
according to the formula
Calculating the distance d between any two light spot images on the area array image sensor 52, wherein sigma is the pixel size of the area array image sensor 52, (x 1, y 1) is the coordinate representation of the image center of the first light spot 8, and (x 2, y 2) is the coordinate representation of the image center of the second light spot 9;
the comparison results in the maximum distance d between any two spot images on the area array image sensor 52 max ；
According to the formula
Calculating to obtain the maximum distance L between the spot images on the screen 41, wherein D is the distance from the screen 41 to the lens 51, and f is the focal length of the lens 51;
according to the formula
Calculating to obtain the fiber outlet angle alpha of the optical fiber connector, wherein m is the distance from the optical fiber connector 7 to the screen 41.
In one example, the center of the beam splitter prism 23 and the center of the stray light receiving unit 3 are located at the same height, and the effect of the first light beam absorption is better. In one example, the center of the screen 41, the center of the lens 51, and the center of the area array image sensor 52 are maintained at the same horizontal line, and the measurement of the outgoing angle of the fiber connector is more accurate.
According to the embodiment of the invention, the fiber outlet angle of the optical fiber connector is calculated by using electronic equipment, compared with a method for manually observing the optical fiber connector by using a high-power microscope, the detection result is more accurate, the optical fiber connector only needs to rotate for one circle, the detection time is shortened, and the detection efficiency is improved.
In view of the above, referring to fig. 4, a second aspect of the embodiment of the present invention provides an optical fiber connector outgoing angle measuring system, which includes a laser and the optical fiber connector outgoing angle measuring apparatus of the first aspect. The embodiment of the optical fiber connector fiber outlet angle measuring system can achieve the same or similar effect as the corresponding optical fiber connector fiber outlet angle measuring device.
Based on the above purpose, referring to fig. 1, fig. 3, fig. 5 and fig. 6, a third aspect of the embodiment of the present invention provides a method for measuring an outgoing angle of an optical fiber connector, where the method is implemented by the following steps:
step S102, fixing the optical fiber connector 7 of the laser on the clamp 1, and starting the laser to enable the laser to emit light beams.
In this embodiment, optionally, the laser is a semiconductor laser. The fiber connector 7 is configured to mate with the clamp 1 and may be rotated along the axis of the fiber connector 7.
In step S104, the light splitting unit 2 splits the light beam emitted from the laser into a first light beam and a second light beam which intersect with each other, wherein the first light beam passes through the light splitting unit 2 and enters the stray light receiving unit 3 to be absorbed by the stray light receiving unit.
In this embodiment, the output energy of the first light beam is greater than the output energy of the second light beam. Optionally, the output energy of the second light beam is only 1% of the output energy of the first light beam, avoiding damage to the optical components.
Step S106, the light spot receiving unit 4 forms a light spot image for the second light beam, and the optical imaging unit 5 converts the optical signal of the light spot image into a digital signal.
In this embodiment, the second light beam is blocked by the light spot receiving unit 4 to form a light spot image, which is an optical signal. The optical imaging unit 5 then converts the optical signal of the spot image into a digital signal for subsequent processing of the signal.
Step S108, rotating the optical fiber connector 7 for one circle, calculating the distance between any two spot images on the optical imaging unit 5, and comparing to obtain the maximum distance between two spot images on the optical imaging unit 5.
In this embodiment, the optical fiber connector 7 is rotated for a circle, and due to the fiber outlet angle of the optical fiber connector, the light spot image moves in the circumferential direction of the optical imaging unit 5, and the optical imaging unit 5 can record the position of the light spot image at each moment.
Step S110, calculating the maximum distance between the two spot images on the spot receiving unit 4 according to the maximum distance between the two spot images on the optical imaging unit 5.
In this embodiment, the light spot image of the light spot receiving unit 4 is projected on the optical imaging unit 5, and in order to calculate the fiber output angle of the optical fiber connector, the maximum distance between two light spot images on the optical imaging unit 5 needs to be converted into the maximum distance between two light spot images on the light spot receiving unit 4.
Step S112, calculating the fiber outlet angle of the optical fiber connector according to the maximum distance between the two spot images on the spot receiving unit 4.
In this embodiment, referring to fig. 3, three points in the two spot images on the spot receiving unit 4 and the position of the optical fiber connector 7 together form a triangular relationship, and the fiber outlet angle of the optical fiber connector can be obtained through calculation.
In some embodiments, the light splitting unit 2 and the optical imaging unit 5 are respectively located on both sides of the spot taking-up unit 4. The spot-receiving unit 4 is a screen 41. The optical imaging unit 5 includes a lens 51 and an area array image sensor 52.
Step S106 further includes: and receiving the light spot image on the area array image sensor 52, and adjusting the integration time of the area array image sensor 52, so that the ratio of the maximum gray value to the saturated gray value of the light spot image data acquired by the area array image sensor 52 is not less than 90%, and the acquired image data is not saturated. This step can make the image of the light spot on the area array image sensor 52 displayed more clearly.
Step S108 further includes: according to the formula
And calculating the distance d between any two light spot images on the area array image sensor, wherein sigma is the pixel size of the area array image sensor, (x 1, y 1) is the coordinate representation of the center of the first light spot image, and (x 2, y 2) is the coordinate representation of the center of the second light spot image. Comparing to obtain the maximum distance d between any two light spot images on the area array image sensor max 。
The step S110 further includes: according to the formula
The maximum distance L between the spot images on the screen 41 is calculated, where D is the distance from the screen to the lens, and f is the focal length of the lens.
Step S112 further includes: according to the formula
Calculating to obtain the fiber outlet angle alpha of the optical fiber connector, wherein m is the distance from the optical fiber connector 7 to the screen 41.
In summary, in the method for measuring the fiber outgoing angle of the optical fiber connector according to the embodiment of the invention, the distance of the light spot projected by the light beam on the optical receiving unit is measured, so that the fiber outgoing angle of the optical fiber connector of the laser is measured, and the method replaces the conventional method for observing the optical fiber connector by using a high power microscope to detect, and the method is simple in device, simple in operation, and suitable for large-scale production.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, the terms "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, only for convenience in describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides an optical fiber connector goes out fine angle measuring device which characterized in that includes:
the clamp (1) is used for fixing the optical fiber connector (7);
the light splitting unit (2) is used for splitting the light beam emitted by the optical fiber connector (7) into a first light beam and a second light beam which are intersected, wherein the first light beam penetrates through the light splitting unit (2), and the light beam is reflected by the light splitting unit (2) to form the second light beam;
a stray light receiving unit (3) for receiving and absorbing energy of the first light beam;
a spot receiving unit (4) for blocking the second light beam to form a spot image;
an optical imaging unit (5) for converting an optical signal of the spot image into a digital signal;
and the electronic equipment is used for acquiring the digital signal, capturing the position of the optical fiber connector (7) on the optical imaging unit (5) in the process of rotating for one circle, calculating the distance between any two light spot images, and calculating the fiber outlet angle of the optical fiber connector according to the distance.
2. The fiber connector outgoing angle measuring device according to claim 1, further comprising a base (6), wherein the clamp (1) comprises:
the fixing plate (11) is arranged on the base (6), and at least one hole position (12) used for fixing the optical fiber connector (7) is formed in the fixing plate (11).
3. The fiber connection head outgoing angle measuring device according to claim 2, wherein the light splitting unit (2) comprises:
a pillar (21) provided on the base (6);
a latch (22) provided on the stay (21);
and the light splitting prism (23) is arranged between the fixture block (22) and the top surface of the support column (21).
4. The fiber connection head fiber outgoing angle measuring device according to claim 2, wherein the stray light receiving unit (3) is adjacently disposed at one side of the base (6).
5. The optical fiber connector outgoing angle measuring device according to claim 2, wherein the spot receiving unit (4) comprises:
a support (44) arranged on the base (6);
a first bracket (42) provided on the support (44), both ends of the first bracket (42) extending upward;
a screen (41) mounted on the first support (42), a first side of the screen (41) being disposed opposite the jig (1);
and pressing strips (43) arranged at two ends of the screen (41) and used for fixing the screen (41) at two ends of the first bracket (42).
6. The fiber connection head fiber outgoing angle measuring device according to claim 5, wherein the optical imaging unit (5) comprises:
a second bracket (53) provided on the base (6);
the lens (51) is arranged on the second support (53), and the lens (51) is arranged opposite to the second surface of the screen (41) and is used for acquiring the light spot image on the second surface of the screen (41);
and the area array image sensor (52) is arranged on the second support (53) and is used for converting the optical signals of the light spot image into digital signals.
7. The optical fiber connector outgoing angle measuring device of claim 6, wherein the electronic device is further configured to:
according to the formula
Calculating the distance d between any two light spot images on the area array image sensor (52), wherein sigma is the pixel size of the area array image sensor (52), (x 1, y 1) is the coordinate representation of the image center of the first light spot (8), and (x 2, y 2) is the coordinate representation of the image center of the second light spot (9);
comparing to obtain the maximum distance d between any two spot images on the area array image sensor (52) max ；
According to the formula
Calculating to obtain the maximum distance L between the spot images on the screen (41), wherein D is the distance from the screen (41) to the lens (51), and f is the focal length of the lens (51);
according to the formula
And calculating to obtain a fiber outlet angle alpha of the optical fiber connector, wherein m is the distance from the optical fiber connector (7) to the screen (41).
8. An optical fiber connector outgoing angle measuring system, characterized by comprising a laser and the optical fiber connector outgoing angle measuring device of any one of claims 1 to 7.
9. A method for measuring the fiber outlet angle of an optical fiber connector is characterized by comprising the following steps:
fixing an optical fiber connector (7) of a laser on a clamp (1), and starting the laser to enable the laser to emit light beams;
the light splitting unit (2) splits a light beam emitted by the laser into a first light beam and a second light beam which are intersected, wherein the first light beam penetrates through the light splitting unit (2) to enter the stray light receiving unit (3) to be absorbed by the stray light receiving unit;
the light spot receiving unit (4) forms a light spot image for the second light beam, and the optical imaging unit (5) converts an optical signal of the light spot image into a digital signal;
rotating the optical fiber connector (7) for one circle, calculating the distance between any two light spot images on the optical imaging unit (5), and comparing to obtain the maximum distance between the two light spot images on the optical imaging unit (5);
calculating the maximum distance between the two light spot images on the light spot carrying unit (4) according to the maximum distance between the two light spot images on the optical imaging unit (5);
and calculating the fiber outlet angle of the optical fiber connector according to the maximum distance between the two spot images on the spot bearing unit (4).
10. The method for measuring the fiber outgoing angle of the optical fiber connector according to claim 9, wherein the light splitting unit (2) and the optical imaging unit (5) are respectively located at two sides of the spot receiving unit (4).
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