CN115165314A - Laser light source detection device - Google Patents

Abstract

The invention discloses a laser light source detection device, comprising: the device comprises a base, a vertical frame, a cross beam, a focal length detection component, a divergence angle and wavelength detection component and a laser light source accommodating component; the divergence angle and wavelength detection component is used for detecting the divergence angle and the wavelength of the laser light source, and the focal length detection component is used for detecting the focal length of the imaging lens used after the light-emitting light source is transmitted and imaged by the imaging lens. Due to manufacturing errors of the laser light sources, divergence angles and wavelengths of a plurality of lasers of the same type are not completely the same as focal length values of the imaging lenses detected by the same imaging lens, and the laser light sources are classified, managed and used according to different divergence angles or wavelengths or focal length values, so that when the laser light sources are used on laser imaging equipment in the following process, each used laser light source in the same batch has the same parameters, and the exposure consistency is improved.

Description

Laser light source detection device

Technical Field

The invention belongs to the field of laser direct imaging equipment, and particularly relates to a laser light source detection device.

Background

The laser light source is used as an important component of the laser direct imaging device, and provides stable and reliable guarantee for the laser output of the laser direct imaging device. In the prior art, in an embodiment of using light emitted from a laser diode (refer to fig. 1) as a laser light source, referring to fig. 2, a light beam emitted from the laser light source 610 is transmitted through at least one imaging lens 20 to obtain an image point 30. Theoretically, as long as the distance u between the laser light source 610 and the object of the imaging lens 20 is constant, the distance v between the image point 30 and the imaging lens 20 is constant, and the focal length f of the imaging lens 20 is constant according to the formula 1/f =1/u + 1/v. However, even if each laser diode of the same model is detected while being placed at the same place on the horizontal axis at d from the origin o (0,0), the measured focal length f is not all exactly the same due to manufacturing process errors such as assembly errors. For example, after a part of light emitted from the laser diode is imaged by the imaging lens 20, the focal length of the imaging lens 20 is measured to be 80mm, the focal length of the imaging lens 20 is measured to be 81mm, and the focal length of the imaging lens 20 is measured to be 79mm, which is obviously different from the theoretical conclusion that the focal length value measured by the same imaging lens is the same value. The reason is that each laser light source is imaged through the same imaging lens due to manufacturing process errors, and measured focal length values of the imaging lens are different, so that it can be known that the measured parameters of the laser light sources are not completely the same although the models of the laser light sources are the same. In the laser imaging device, a plurality of laser light sources are required to be installed at one time, and the parameters of each laser light source must be the same so as to ensure the consistency of the exposure results of the laser light sources. If a plurality of laser light sources with different parameters are installed on the laser imaging equipment, the exposure results are greatly different, for example, some parts of the photosensitive resist screen plate do not reach the requirement of the explosion depth, and some parts of the photosensitive resist screen plate exceed the explosion depth, so that the photosensitive resist screen plate is scrapped.

Disclosure of Invention

The invention provides a laser light source detection device, which aims to solve the problem of poor exposure consistency of a laser light source by detecting relevant parameters of the laser light source and classifying the laser light source according to a detection result.

The scheme of the invention is as follows:

a laser light source detection device, comprising: the laser device comprises a base, a vertical frame arranged on one side of the upper end of the base, a cross beam arranged on the vertical frame, a focal length detection component vertically arranged at one end of the cross beam, a divergence angle and wavelength detection component transversely arranged at the lower end of the cross beam of the base, and a laser light source accommodating component which is approximately in the same vertical line direction as the focal length detection component and is arranged on the side edge of the base;

the divergence angle and wavelength detection part comprises a horizontal transmission assembly, a first CCD assembly and an integrating sphere which are arranged on the horizontal transmission assembly side by side, the focal length detection part comprises a second CCD assembly, and at least one imaging lens is arranged in the second CCD assembly; the laser light source accommodating part accommodates a laser light source to be detected;

the laser light source accommodating part is controlled to move upwards to a preset position and then stops, the first CCD assembly and the integrating sphere are controlled to move horizontally on the horizontal transmission assembly, so that the first CCD assembly and the integrating sphere sequentially pass right above the luminous laser light source, the first CCD assembly detects the divergence angle of a laser beam emitted by the laser light source, the integrating sphere collects the laser beam, and the wavelength of the laser light source is obtained by detecting the laser beam in the integrating sphere;

after the divergence angle and wavelength detection part is controlled to return to the initial position, the second CCD assembly is finely adjusted up and down until the imaging point of the laser light source in the lighting state, which is shot by the second CCD assembly, is clearest, and the actual focal length value obtained by the laser light source transmitted by at least one imaging lens is recorded.

Further, the divergence angle and wavelength detecting means further includes: the device comprises a first bracket, a second bracket, a sensor and a positioning plate;

the first bracket is arranged on the horizontal transmission assembly, the integrating sphere is arranged on the first bracket, the second bracket is arranged on the integrating sphere, the first CCD assembly is arranged on the second bracket, the sensor is arranged on the side edge of the first bracket, and the positioning plate is arranged on the vertical frame;

the first CCD assembly is closest to the laser light source, and the first support, the integrating sphere, the second support and the first CCD assembly are driven by the horizontal transmission assembly to be close to or far away from the laser light source at the same time.

Further, the horizontal drive assembly includes: the device comprises a first motor, a first motor mounting seat, a coupling, a first bearing mounting seat, a lead screw, a first sliding block, a second bearing seat, two first guide rails and a first guide rail fixing seat, wherein the two first guide rails and the first guide rail fixing seat are arranged in parallel;

the first motor mounting seat is arranged on the base, the first motor is arranged in the first motor mounting seat, one end of the coupling is connected with the first motor, the other end of the coupling is connected with one end of the screw rod through a first bearing, the other end of the screw rod penetrates through a second bearing, the second bearing is arranged in a second bearing seat, and the first bearing is arranged in the first bearing mounting seat; the first bearing mounting seats are arranged on the two first guide rails;

the upper end of the first sliding block is connected with the first bracket, the middle part of the first sliding block penetrates through the screw rod, and the lower end of the first sliding block is arranged on the two first guide rails in a spanning manner;

two first guide rails are installed on a first guide rail fixing seat and located between a first bearing seat and a second bearing seat, and the first guide rail fixing seat is arranged between a first motor installing seat and the second bearing seat of the base.

Further, the focal length detecting section further includes: the two second guide rails, the second guide rail fixing seats, the second CCD assembly support, the range finder, the second motor, the magnetic grid reader and the magnetic grid support are adhered with magnetic grid rulers facing the magnetic grid reader;

the second guide rail fixing seat is vertically installed at the end head of one end of the cross beam, the two second guide rails are vertically installed on the second guide rail fixing seat, the second sliding block is installed on the two second guide rails, the second CCD assembly support is installed on the second sliding block, the second CCD assembly vertically penetrates through the second CCD assembly support, the magnetic grid reader and the distance meter are respectively arranged on two sides of the second CCD assembly support, the second motor is arranged on the second motor installing seat, and the magnetic grid support is installed on the side wall of the end head of one end of the cross beam and is opposite to the magnetic grid reader;

and the second motor controls the second sliding block to move on the two second guide rails so as to drive the second CCD assembly, the second CCD assembly bracket, the magnetic grid reader and the range finder to synchronously move up and down.

Further, a manual adjusting knob is arranged at the upper end of the second motor.

Furthermore, the second CCD assembly bracket is composed of an upper semicircular groove and a lower semicircular groove which are detachably connected.

Further, the laser light source accommodating member further includes: the laser light source device comprises an air cylinder, an air cylinder seat, an air cylinder mounting plate, a containing block and a positioning block, wherein the air cylinder seat is connected with the air cylinder;

the cylinder pushes the cylinder seat to drive the containing block to move upwards until the upper end face of the containing block touches the lower end face of the positioning block.

Furthermore, the positioning block is of an inverted L-shaped structure, and a horizontal part at the upper end of the positioning block is provided with a through hole for exposing the luminous body of the laser light source.

Furthermore, the cylinder seat is of an inverted L-shaped structure, and the accommodating block is placed on the horizontal plane at the upper end of the cylinder seat.

Furthermore, the vertical frame is of an inverted concave structure, and the first motor, the first motor mounting seat, the coupling, the first bearing and the first bearing mounting seat are located in a gap at the lower end of the middle part of the vertical frame.

The invention has the beneficial technical effects that: the detection device comprises a first CCD assembly, an integrating sphere and a second CCD assembly, wherein at least one imaging lens is arranged in the second CCD assembly, the first CCD assembly is used for calculating the divergence angle of the laser light source, the integrating sphere is used for calculating the wavelength of the laser light source after collecting the light beam of the laser light source, and the second CCD assembly is used for calculating the focal length of the laser light source after the light beam emitted by the laser light source is transmitted, converged and imaged through the imaging lens. Therefore, the detection device has the following technical effects:

(1) The divergence angle and the wavelength of the laser light source and the focal length of the imaging lens transmitted by the laser light source can be detected simultaneously, so that the aim of detecting various parameters at one time is fulfilled, and the detection effect is improved;

(2) Because of the inevitable error existing in the manufacture and assembly of each laser light source, even for a plurality of laser light sources of the same type, the divergence angle, the wavelength and the focal length obtained by the detection of the device are not completely the same. The detection device can be used for classifying and managing the plurality of laser light sources according to the incomplete difference of the detection results of the divergence angle, the wavelength and the focal length, for example, for a plurality of laser light sources of the same type, the divergence angles of the laser light sources detected by the device are not completely the same, and the plurality of laser light sources with the same detected divergence angle can be divided into a group for management; or the wavelengths of the laser light sources detected by the device are not completely the same, a plurality of detected laser light sources with the same wavelength can be divided into a group for management; or the focal length values of the imaging lenses detected by the device are not completely the same, and the laser light sources are classified according to different focal length values; and classifying a plurality of laser light sources of the same model by any one of the three methods. When the laser imaging device is used subsequently, the laser light sources with the same parameters are used together, so that the exposure consistency of the laser imaging device is improved.

Drawings

FIG. 1 is a schematic diagram of a laser diode;

FIG. 2 is a lens imaging optical path diagram;

FIG. 3 is a block diagram of the laser inspection apparatus;

FIG. 4 is a view showing the structure of the laser inspection apparatus;

FIG. 5 is a view of the vertical frame of FIG. 4 with the vertical frame removed;

FIG. 6 is a block diagram of another perspective of FIG. 4;

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

FIG. 8 is a block diagram of yet another view of FIG. 4;

FIG. 9 is an enlarged view of a portion of FIG. 8 at B;

FIG. 10 is a block diagram of a magnetic grid support;

fig. 11 shows a magnetic scale mounted on the magnetic scale support.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used merely to describe differences and are not intended to indicate or imply relative importance, and moreover, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 3, the present invention discloses a laser light source detection apparatus, including: the laser device comprises a base 100, a vertical frame 200 arranged on one side of the upper end of the base, a cross beam 300 arranged on the vertical frame 200, a focal length detection component 400 vertically arranged at one end of the cross beam 300, a divergence angle and wavelength detection component 500 transversely arranged at the lower end of the cross beam 300 of the base 100, and a laser source accommodating component 600 which is approximately in the same vertical line direction as the focal length detection component 400 and arranged on the side edge of the base 100 opposite to the vertical frame 200;

referring to fig. 5, the divergence angle and wavelength detecting part 500 includes a horizontal driving unit 510, and a first CCD unit 520 and an integrating sphere 530 which are disposed side by side on the horizontal driving unit 510. Referring to fig. 4, the focal distance detecting part 400 includes a second CCD assembly 410 in which at least one imaging lens (not shown) is disposed. A laser light source 610 to be detected is placed in the laser light source accommodating part 600;

the laser light source accommodating part 600 in fig. 5 is controlled to move upward to a preset position and then stops, the first CCD assembly 520 and the integrating sphere 530 are controlled to move horizontally on the horizontal transmission assembly 510 towards the direction of the laser light source 610, the first CCD assembly 520 and the integrating sphere 530 pass right above the laser light source 610 which emits light, the first CCD assembly 520 detects a laser beam emitted by the laser light source 610 and obtains an angle of divergence of the laser light source according to the laser beam, and after the integrating sphere collects the laser beam, the integrating sphere detects the laser beam inside the integrating sphere and further obtains the wavelength of the laser light source. After the first CCD assembly 520 and the integrating sphere 530 detect the laser beam, the laser beam is controlled to return to the initial position in the horizontal driving assembly 510, i.e., reset.

The second CCD element 410 in fig. 5 is controlled to be finely adjusted up and down, and at least one imaging lens (not shown) is built in the second CCD element 410, and when the second CCD element 410 is finely adjusted up and down, the imaging lens is also finely adjusted up and down until the imaging point of the laser light source 610 in the lit state in fig. 4, which is photographed by a photosensitive device (not shown, equivalent to an image screen) in the second CCD element 410, is clearest, and the focal length of the laser light source 610 after being transmitted through the imaging lens built in the second CCD element is calculated, and then the focal length is controlled to return to the initial position. And then the wavelength, the divergence angle and the focal length of other laser light sources after being transmitted by the imaging lens are detected by the same method. As described in the background art, for the same type of laser diodes purchased in batches, due to the manufacturing precision and the assembly process, the relevant parameters obtained after each laser diode is detected by the laser light source detection device are not all consistent. That is, the wavelength and the divergence angle of each laser light source and the focal length of the imaging lens detected by the same imaging lens are not necessarily the same. For example, a batch of 100 laser diodes of the same model are purchased, and the parameters of the 100 laser diodes should be theoretically the same. However, after the detection by the laser detection apparatus, if the focal length of the imaging lens detected after 50 laser light sources are imaged by the imaging lens is 80mm, the focal length of the imaging lens detected after 20 laser light sources are imaged by the imaging lens is 79mm, and the focal length of the imaging lens detected after 30 laser light sources are imaged by the imaging lens is 81 mm. Therefore, the 100 laser light sources of the same model need to be divided into three groups according to the detection result: the laser light sources with the focal length of 80mm of the detection result are grouped, the laser light sources with the focal length of 79mm of the detection result are grouped, and the laser light sources with the focal length of 81mm of the detection result are grouped. When a laser (the laser is obtained by mechanically assembling a laser light source and an imaging lens, it should be noted that the imaging lens in the laser is not the imaging lens built in the second CCD assembly 410) is assembled to the laser direct imaging device, a group of laser light sources with the same focal length value are used together, for example, 50 laser light sources with a focal length of 80mm are used, so that each corresponding parameter of the laser is kept consistent. The parameters include, but are not limited to, the wavelength, divergence angle, and focal length of the laser light source detected by the present laser detection device.

Referring to fig. 4, further, the divergence angle and wavelength detecting part 500 further includes: a first bracket 540, a second bracket 550, a sensor 560 and a positioning plate 570; the first bracket 540 is installed on the horizontal transmission assembly 510, the integrating sphere 530 is installed on the first bracket 540, the second bracket 550 is installed on the integrating sphere 530, the first CCD assembly 520 is installed on the second bracket 550, the sensor 560 is installed at the side of the first bracket 540, and the positioning plate 570 is installed on the vertical frame 200; the sensor 570 disposed on the first bracket 540, together with the first bracket 540, the integrating sphere 530, the second bracket 550 and the first CCD assembly 520, simultaneously moves closer to or away from the laser light source under the driving of the horizontal driving assembly 510. When the sensor 560 senses the positioning plate 570 when the first bracket 540, the integrating sphere 530, the second bracket 550 and the first CCD assembly 520 are retracted to the initial positions, the horizontal transmission assembly 510 stops moving in time to prevent the first bracket 540 and the vertical frame 200 from colliding;

as can be seen in fig. 4, the first CCD assembly 520 is located closest to the laser light source 610 to facilitate the acquisition of the divergence angle of the laser light source 610.

Referring to fig. 5, as one embodiment, the horizontal driving assembly 510 includes: the device comprises a first motor 511, a first motor mounting base 512, a coupling 513, a first bearing 514, a first bearing mounting base 515, a lead screw 516, a first sliding block 517, a second bearing 518, a second bearing base 519, two first guide rails 519-1 and a first guide rail fixing base 519-2 which are arranged in parallel;

the first motor mounting base 512 is arranged on the base 100, the first motor 511 is arranged in the first motor mounting base 512, one end of the coupling 513 is connected with the first motor 511, the other end of the coupling is connected with one end of the lead screw 516 through the first bearing 514, the other end of the lead screw 516 penetrates through the second bearing 518, and the second bearing 518 is arranged in the second bearing base 519; the first bearing 514 is disposed within a first bearing mount 515, and the first bearing mount 515 is disposed on two first guide rails 519-1.

The upper end of the first sliding block 517 is connected with the first bracket 540, the middle part of the first sliding block passes through the screw 516, and the lower end of the first sliding block is spanned on two first guide rails 519-1;

two first guide rails 519-1 are mounted on a first guide rail fixing base 519-2, two ends of each first guide rail fixing base are located between the first bearing 514 and the second bearing 518 of the first bearing seat, and the first guide rail fixing base 519-2 is arranged between the first motor mounting base 512 and the second bearing seat 519 of the base 100. The horizontal driving assembly 510 provides power and a moving track for the left and right back and forth movement of the first CCD assembly 520 and the integrating sphere 530 in fig. 4.

Further, referring to fig. 6 to 9, the focal distance detecting part 400 further includes: two second guide rails 401, a second guide rail fixing seat 402, a second CCD assembly bracket 403, a distance measuring instrument 404, a second motor 405, a second motor mounting seat 406, a second sliding block 407, a magnetic grid reader 408 and a magnetic grid bracket 409, referring to fig. 11, a magnetic grid ruler facing the magnetic grid reader 408 is mounted on the magnetic grid bracket 409.

Referring to fig. 7, a second guide rail fixing seat 402 is vertically installed at an end of one end of the beam 300, referring to fig. 9, two second guide rails 401 are vertically installed on the second guide rail fixing seat 402, a second slider 407 is installed on the two second guide rails 401, a second CCD assembly bracket 403 is installed on the second guide rail 401, a second CCD assembly 410 is vertically arranged in the second CCD assembly bracket 403 in a penetrating manner, a magnetic grid reader 408 and a distance meter 404 are respectively arranged at two sides of the second CCD assembly bracket 403, a second motor 405 is arranged on the second motor mounting seat 406, and a magnetic grid bracket 409 is installed at a side wall of one end of the beam 300 and is opposite to the magnetic grid reader 408.

The second motor 405 controls the second slider 407 to move on the two second guide rails 401, so as to drive the second CCD assembly 410, the second CCD assembly bracket 403, the magnetic grid reader 408 and the distance meter 404 to synchronously move up and down. Since the grating holder 409 is installed on the sidewall of the end of the beam 300, the grating scale on the grating holder 409 in fig. 10 does not move up and down, and thus the grating reader 408 can determine the up and down movement displacement of the second CCD assembly 410 and the distance meter 404 by reading the difference between the scale values on the grating scale on the grating holder 409. The range finder 404 functions to: when the laser light source 610 in fig. 6 moves upward to a predetermined position, the laser light source 610 emits light, and a light beam emitted from the laser light source 610 passes through an imaging lens (not shown, refer to the imaging lens 20 in fig. 2) built in the second CCD assembly 410, and is focused and imaged on the second CCD assembly 410, and at this time, the range finder 404 detects a focal length value of the imaging lens. As described in the background, for reasons of manufacturing accuracy and assembly process, the focal length values of the imaging lenses detected by the distance meter 404 are not exactly the same for different laser light sources 610 of the same model, for example, some 79mm, some 80mm, and some 81 mm. Therefore, the range finder 404 can detect that all the laser light sources 610 have different focal lengths after passing through the same imaging lens of the second CCD assembly 410, and classify the laser light sources 610 according to the different focal lengths.

Further, referring to fig. 7, a manual adjustment knob 411 is further provided at an upper end of the second motor 405. The manual adjustment knob 411 is used to facilitate fine adjustment of the second CCD assembly 410, so that the image 30 formed by the light beam emitted from the laser source 610 in fig. 4 is clearest after the imaging lens (not shown) in the second CCD assembly 410 transmits the light beam emitted from the laser source 610, see fig. 2, and thus the measured focal length of the imaging lens is the most accurate.

Further, referring to fig. 7, the second CCD assembly holder 403 is formed by detachably connecting an upper semicircular groove 403-1 and a lower semicircular groove 403-2, and when the second CCD assembly 410 needs to be mounted on the second CCD assembly holder 403, the second CCD assembly 410 is inserted into the cylindrical space formed by the upper semicircular groove 403-1 and the lower semicircular groove 403-2 after being fastened.

Referring to fig. 6, the laser light source accommodating part 600 further includes: the laser light source device comprises a cylinder 601, a cylinder seat 602, a cylinder mounting plate 603, an accommodating block 604 and a positioning block 605, wherein the cylinder seat 602 is connected with the cylinder 601, the cylinder 601 is connected to the side wall of the base 100 through the cylinder mounting plate 603, the accommodating block 604 is arranged on the cylinder seat 602, and the laser light source 610 is placed in the accommodating block 604.

The cylinder 601 pushes the cylinder block 602 to drive the accommodating block 604 to move upward until the upper end surface of the accommodating block 604 contacts the lower end surface of the positioning block 605, and at this time, the laser source 610 is sent to a preset position. The positioning block 605 is provided to ensure that the position of the laser light source 610 detected each time is fixed, i.e., to ensure that the position of the laser light source 610 detected each time is d at least theoretically, as shown in fig. 2, from the origin O (0,0). However, since each laser source 610 has manufacturing errors, the actual d values are not completely different, and the measured focal lengths f of the imaging lenses (not shown in the second CCD assembly 410, schematically represented by the imaging lens 20 in the optical path shown in fig. 2) in the second CCD assembly 410 are not completely the same. That is, one of the purposes of the present apparatus is to use the imaging lens in the second CCD assembly 410 to detect the focal length of the imaging lens when each laser light source is imaged through the imaging lens. And classifying the laser light sources according to the measured different focal length values.

Referring to fig. 6, the positioning block 605 has an inverted L-shaped structure, and a horizontal portion at an upper end of the positioning block 605 is provided with a through hole 611 through which the light emitting body of the laser light source 610 is exposed. The cylinder block 602 is an inverted L-shaped structure with the receiving block 604 lying on a horizontal plane at the upper end of the cylinder block 602.

Further, referring to fig. 6 in conjunction with fig. 5, the vertical frame 200 is mounted on the base 100 in an inverted "concave" structure, and the first motor 511, the first motor mounting seat 512, the coupling 513, the first bearing 514 and the first bearing mounting seat 515 are all located in a gap at the lower end of the middle portion of the vertical frame 200.

In this application, the laser light source is only illustrated as the laser diode in fig. 1, and in fact, the laser light source may be other laser light emitting sources, which will not be described in detail herein.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. A laser light source detection device, comprising: the device comprises a base, a vertical frame arranged on one side of the upper end of the base, a cross beam arranged on the vertical frame, a focal length detection component vertically arranged at one end of the cross beam, a divergence angle and wavelength detection component transversely arranged at the lower end of the cross beam of the base, and a laser light source accommodating component arranged on the side edge of the base and approximately in the same vertical line direction as the focal length detection component;

the device comprises a focus detection component, a divergence angle and wavelength detection component and a focusing component, wherein the divergence angle and wavelength detection component comprises a horizontal transmission component, a first CCD component and an integrating sphere which are arranged on the horizontal transmission component side by side, the focus detection component comprises a second CCD component, and at least one imaging lens is arranged in the second CCD component; the laser light source accommodating part accommodates a laser light source to be detected;

the laser light source accommodating part is controlled to move upwards to a preset position and then stops, the first CCD assembly and the integrating sphere are controlled to move horizontally on the horizontal transmission assembly, so that the first CCD assembly and the integrating sphere sequentially pass right above the laser light source emitting light, the first CCD assembly detects the divergence angle of a laser beam emitted by the laser light source, the integrating sphere collects the laser beam, and the wavelength of the laser light source is obtained by detecting the laser beam in the integrating sphere;

after the divergence angle and wavelength detection part is controlled to return to the initial position, the second CCD assembly is finely adjusted up and down until the imaging point of the laser light source in the lighting state, which is shot by the second CCD assembly, is clearest, and an actually measured focal length value obtained by imaging after the laser light source is transmitted by the at least one imaging lens is recorded.

2. The laser light source detection device according to claim 1, wherein the divergence angle and wavelength detection means further comprises: the device comprises a first bracket, a second bracket, a sensor and a positioning plate;

the first support is mounted on the horizontal transmission assembly, the integrating sphere is mounted on the first support, the second support is mounted on the integrating sphere, the first CCD assembly is mounted on the second support, the sensor is mounted on the side edge of the first support, and the positioning plate is mounted on the vertical frame;

the first CCD assembly is closest to the laser light source, and the first support, the integrating sphere, the second support and the first CCD assembly are driven by the horizontal transmission assembly to simultaneously approach or keep away from the laser light source.

3. The laser light source detection device of claim 2, wherein the horizontal drive assembly comprises: the device comprises a first motor, a first motor mounting seat, a coupling, a first bearing mounting seat, a lead screw, a first sliding block, a second bearing seat, two first guide rails and a first guide rail fixing seat, wherein the two first guide rails and the first guide rail fixing seat are arranged in parallel;

the first motor mounting seat is arranged on the base, the first motor is arranged in the first motor mounting seat, one end of the coupling is connected with the first motor, the other end of the coupling is connected with one end of the lead screw through the first bearing, the other end of the lead screw penetrates through the second bearing, the second bearing is arranged in the second bearing seat, and the first bearing is arranged in the first bearing mounting seat; the first bearing mounting seats are arranged on the two first guide rails;

the upper end of the first sliding block is connected with the first support, the middle part of the first sliding block penetrates through the screw rod, and the lower end of the first sliding block is arranged on the two first guide rails in a spanning mode;

the two first guide rails are arranged on the first guide rail fixing seat and located between the first bearing seat and the second bearing seat, and the first guide rail fixing seat is arranged between the first motor mounting seat and the second bearing seat of the base.

4. The laser light source detection device according to claim 1, wherein the focal length detection means further comprises: the two second guide rails, the second guide rail fixing seats, the second CCD assembly support, the distance measuring instrument, the second motor, the magnetic grid reader and the magnetic grid support are arranged, and a magnetic grid ruler facing the magnetic grid reader is arranged on the magnetic grid support;

the second guide rail fixing seat is vertically installed at the end head of one end of the cross beam, the two second guide rails are vertically installed on the second guide rail fixing seat, the second sliding block is installed on the two second guide rails, the second CCD assembly support is installed on the second sliding block, the second CCD assembly vertically penetrates through the second CCD assembly support, the magnetic grid reader and the distance meter are respectively arranged on two sides of the second CCD assembly support, the second motor is arranged on the second motor installing seat, and the magnetic grid support is installed on the side wall of the end head of one end of the cross beam and is opposite to the magnetic grid reader;

and the second motor controls the second sliding block to move on the two second guide rails so as to drive the second CCD assembly, the second CCD assembly bracket, the magnetic grid reader and the range finder to synchronously move up and down.

5. The laser light source detection device of claim 4, wherein a manual adjusting knob is further provided at an upper end of the second motor.

6. The laser light source detection device according to claim 4 or 5, wherein the second CCD module holder is composed of an upper semicircular groove and a lower semicircular groove which are detachably connected.

7. The laser light source detection device according to claim 1, wherein the laser light source accommodating member further comprises: the laser device comprises a cylinder, a cylinder seat, a cylinder mounting plate, an accommodating block and a positioning block, wherein the cylinder seat is connected with the cylinder, the cylinder is connected to the side wall of the base through the cylinder mounting plate, the accommodating block is arranged on the cylinder seat, and the laser light source is placed in the accommodating block;

the cylinder pushes the cylinder seat to drive the containing block to move upwards until the upper end face of the containing block touches the lower end face of the positioning block.

8. The laser light source detection device of claim 7, wherein the positioning block is of an inverted L-shaped structure, and a horizontal portion at an upper end of the positioning block is provided with a through hole for exposing a light emitter of the laser light source.

9. The laser light source detection device of claim 7, wherein the cylinder block is of an inverted L-shaped structure, and the accommodating block is placed on a horizontal plane at the upper end of the cylinder block.

10. The laser light source detection device of claim 3, wherein the vertical frame is in an inverted concave structure, and the first motor, the first motor mounting seat, the coupling, the first bearing and the first bearing mounting seat are located in a gap at the lower end of the middle portion of the vertical frame.

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