CN210775188U

CN210775188U - Coaxial light source with prism module

Info

Publication number: CN210775188U
Application number: CN201921684728.5U
Authority: CN
Inventors: 王凌乐
Original assignee: Dongguan Fstmv Optical Technology Co ltd
Current assignee: Dongguan Fstmv Optical Technology Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-16
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a coaxial light source with a prism module, which comprises a first main body, a second main body, an upper bottom plate and a lower bottom plate, wherein the upper bottom plate is arranged at the upper end of the first main body; one end of the first main body, which is far away from the upper bottom plate, is fixedly connected with the second main body, and a first PCB, a first diffusion plate and a spectroscope are sequentially arranged in the first main body from top to bottom; the upper end part and the lower end part of the main body II are both provided with sinking grooves, an upper cover plate is arranged in the sinking groove at the upper end part, a lower cover plate and a diffusion plate II are arranged in the sinking groove at the lower end part, and a PCB plate II is arranged between the upper cover plate and the lower cover plate in the main body II; the lower bottom plate is arranged at the bottom of the second main body, an installation groove is formed in the lower bottom plate, and a right-angle prism is installed in the installation groove. The utility model discloses possess simple structure, the modern design, the integrated level is high, and simple to operate is reliable, and luminous directionality is concentrated, and the depth of parallelism is high, and light loss is few, can realize the effect that single ordinary coaxial light source can't detect.

Description

Coaxial light source with prism module

Technical Field

The utility model relates to a coaxial light source specifically is a take coaxial light source of prism module.

Background

The machine vision system uses a machine to replace human eyes to make various measurements and judgments. The system is an important branch of computer science, integrates the technologies of optics, mechanics, electronics, computer software and hardware and the like, and relates to a plurality of fields of computers, image processing, mode recognition, artificial intelligence, signal processing, optical-mechanical-electrical integration and the like. The rapid development of image processing, pattern recognition and other technologies also greatly promotes the development of machine vision.

The machine vision inspection system includes: lighting, lenses, and cameras. Among them, illumination is an important factor affecting the input of a machine vision system, and it directly affects the quality of input data and the application effect. Since there is no general machine vision lighting device, the corresponding lighting device needs to be selected for each specific application instance to achieve the best effect.

To electronic component surface detection, PCB board printing counterpoint, cell-phone screen counterpoint laminating etc. on the market all need use coaxial light source to cooperate machine vision system to detect, but current coaxial light source luminous directionality is concentrated inadequately, and light loss is more, and the effect picture contrast that the camera was shot is not high, and the detection that detects the article to each needs adjustment that relapse many times just can monitor, has brought huge inconvenience for machine vision detection work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take coaxial light source of prism module possesses simple structure, the modern design, and the integrated level is high, and simple to operate is reliable, and luminous directionality is concentrated, and the depth of parallelism is high, and light loss is few, can realize the unable advantage that detects of single ordinary coaxial light source, has solved the problem that the above-mentioned technical background provided.

In order to achieve the above object, the utility model provides a following technical scheme: a coaxial light source with a prism module comprises a first main body, a second main body, an upper bottom plate and a lower bottom plate, wherein the upper bottom plate is arranged at the upper end of the first main body; one end of the first main body, far away from the upper bottom plate, is fixedly connected with the second main body, a first PCB, a first diffusion plate and a spectroscope are sequentially arranged in the first main body from top to bottom, a patch LED is arranged on the first PCB, and the spectroscope is obliquely arranged on the first diffusion plate; the upper end part and the lower end part of the second main body are both provided with sinking grooves, an upper cover plate is arranged in the sinking groove at the upper end part, a lower cover plate and a second diffusion plate are arranged in the sinking groove at the lower end part, the lower cover plate and the second diffusion plate are arranged in a laminating manner, a second PCB is arranged between the upper cover plate and the lower cover plate in the second main body, and LED lamp beads are arranged on the second PCB; the lower bottom plate is arranged at the bottom of the second main body, a mounting groove is formed in the lower bottom plate, a right-angle prism is mounted in the mounting groove, and the right-angle prism is in contact connection with the second diffusion plate.

Preferably, the coaxial light source further comprises two power lines, and the two power lines are electrically connected with the first PCB and the second PCB respectively.

Preferably, the first main body is provided with a shooting opening.

Preferably, the first main body, the second main body, the upper cover plate, the lower cover plate and the second diffusion plate are all coaxially provided with light through holes.

Preferably, a feeding opening is formed in the second main body and located in the mounting groove, and the size of the feeding opening is smaller than that of the mounting groove.

Preferably, the beam splitter is a semi-reflective semi-transparent beam splitter, which can allow part of light to transmit and allow another part of light to reflect, and the angle of the beam splitter is 45 degrees.

Preferably, four second PCB boards are arranged, the four second PCB boards form a cavity with a small upper end opening and a large lower end opening, and an included angle of 10-30 degrees is formed between every two adjacent second PCB boards.

Preferably, four right-angle prisms are provided, each of the four right-angle prisms is a specially-made coated corner prism, and the included angle between the right-angle sides of two adjacent right-angle prisms is 120 degrees.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a spectroscope and right angle prism combination form, the spectroscope is half anti-semi-permeable spectroscope, right angle prism is coating film corner prism, and main part one through the customization closely combines together with main part two, simple structure, the modern design, the outward appearance is graceful generous, and the integrated level is high, and simple to operate is reliable.

2. The utility model discloses a set up two power cords, two power cords respectively with the power supply switch-on give PCB board one and two powers of PCB board, the independent control paster LED of being convenient for and the luminance of LED lamp pearl, and can just switch over at will, the practicality is strong.

3. The utility model provides a light beam that paster LED sent is refracted into parallel straight line by the spectroscope after diffusion board diffusion, later with the light beam that LED lamp pearl on four PCB boards two sent converge together, the light beam after assembling jets out the product illumination that supplies to wait to detect by the pan feeding mouth behind four right angle prisms, the camera is shot like an image in shooting mouth department, can the ordinary coaxial light source of effectual solution can't counterpoint electronic component surface, PCB board printing, cell-phone screen counterpoint the problem that detects such as laminating.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a structural diagram of the present invention.

The reference numerals and names in the figures are as follows:

1. a first main body; 2. a second main body; 3. an upper base plate; 4. a lower base plate; 5. a first PCB board; 6. a first diffusion plate; 7. a beam splitter; 8. an upper cover plate; 9. a second PCB board; 10. a lower cover plate; 11. a second diffusion plate; 12. a right-angle prism; 13. sinking the tank; 14. mounting grooves; 15. a shooting port; 16. a light through hole; 17. a power line; 18. and a feeding port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to fig. 2, the present invention provides an embodiment: a coaxial light source with a prism module comprises a first main body 1, a second main body 2, an upper bottom plate 3 and a lower bottom plate 4, wherein the upper bottom plate 3 is arranged at the upper end of the first main body 1; one end of the main body I1, which is far away from the upper bottom plate 3, is fixedly connected with the main body II 2, a PCB I5, a diffusion plate I6 and a spectroscope 7 are sequentially installed in the main body I1 from top to bottom, a patch LED is arranged on the PCB I5, and the spectroscope 7 is obliquely installed on the diffusion plate I6; the upper end and the lower end of the second main body 2 are both provided with a sinking groove 13, an upper cover plate 8 is arranged in the sinking groove 13 at the upper end, a lower cover plate 10 and a second diffusion plate 11 are arranged in the sinking groove 13 at the lower end, the lower cover plate 10 and the second diffusion plate 11 are arranged in an attaching manner, a second PCB 9 is arranged between the upper cover plate 8 and the lower cover plate 10 in the second main body 2, and LED lamp beads are arranged on the second PCB 9; the lower base plate 4 is arranged at the bottom of the second main body 2, a mounting groove 14 is formed in the lower base plate 4, a right-angle prism 12 is mounted in the mounting groove 14, and the right-angle prism 12 is in contact connection with the second diffusion plate 11.

The coaxial light source obtained by adopting the technical scheme has the advantages of simple structure, novel design, high integration level, convenience and reliability in installation, concentrated light emitting directivity, high parallelism and low light loss, can be used for detecting complex products such as electronic component surface detection, PCB printing alignment, mobile phone screen alignment lamination and the like, and is high in practicability.

Coaxial light source still includes two power cords 17, two power cord 17 respectively with PCB board one 5 and two 9 electric connection of PCB board, through setting up two power cords 17, can control the luminance of paster LED and LED lamp pearl on PCB board one 5 and two 9 PCB boards respectively, can also switch at any time, the practicality is strong.

In this embodiment, the main body 1 is provided with a shooting port 15, and the shooting port 15 is used for connecting a camera on a machine vision system; the main body I1, the main body II 2, the upper cover plate 8, the lower cover plate 10 and the diffusion plate II 11 are coaxially provided with light through holes 16; a feeding opening 18 is formed in the position, located in the mounting groove 14, of the second main body 2, and the size of the feeding opening 18 is smaller than that of the mounting groove 14; the light splitter 7 is a semi-reflective semi-transparent light splitter which can allow part of light to transmit and can allow the other part of light to reflect, the oblique cutting angle of the light splitter 7 is 45 degrees, light beams emitted by the patch LEDs on the PCB (first 5) are refracted into parallel straight lines on the light splitter 7 after passing through the diffusion plate (first 6), and the light beams are high in parallelism and good in effect; four second PCB boards 9 are arranged, the four second PCB boards 9 enclose a cavity with a small upper end opening and a large lower end opening, an included angle of 10-30 degrees is formed between every two adjacent second PCB boards 9, and an included angle of 15 degrees is formed between every two adjacent second PCB boards 9 in the embodiment; the number of the right-angle prisms 12 is four, the four right-angle prisms 12 are all specially-made film-coated corner prisms, and the included angle between the right-angle sides of two adjacent right-angle prisms 12 is 120 degrees.

The working principle is as follows: the utility model discloses in operation, two power cords 17 switch on with power supply respectively, make one 5 of PCB boards and two 9 circular telegrams of PCB board, paster LED on the one 5 of PCB board sends even light beam, this light beam is refracted into parallel straight line by spectroscope 7 after 6 diffusion through diffusion board, later converge together with the light beam that LED lamp pearl on four two 9 of PCB boards sent, light beam after assembling jets out by pan feeding mouth 18 behind four right angle prism 12, treat that the material of detecting of feed feeding mouth 18 department provides the illumination, camera on the machine vision detecting system shoots in shooting mouth 15 department, realize that single ordinary coaxial light source can't be to the electronic component surface, PCB board printing is counterpointed, the cell-phone screen counterpoint effect that detects such as laminating.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a take coaxial light source of prism module which characterized in that: the novel multifunctional electric heating cooker comprises a first main body (1), a second main body (2), an upper base plate (3) and a lower base plate (4), wherein the upper base plate (3) is arranged at the upper end of the first main body (1); one end, far away from the upper base plate (3), of the first main body (1) is fixedly connected with the second main body (2), a first PCB (5), a first diffusion plate (6) and a spectroscope (7) are sequentially installed inside the first main body (1) from top to bottom, a patch LED is arranged on the first PCB (5), and the spectroscope (7) is obliquely installed on the first diffusion plate (6); the upper end and the lower end of the second main body (2) are respectively provided with a sinking groove (13), an upper cover plate (8) is arranged in the sinking groove (13) at the upper end, a lower cover plate (10) and a second diffusion plate (11) are arranged in the sinking groove (13) at the lower end, the lower cover plate (10) and the second diffusion plate (11) are attached, a second PCB (9) is arranged between the upper cover plate (8) and the lower cover plate (10) in the second main body (2), and LED lamp beads are arranged on the second PCB (9); the lower base plate (4) is arranged at the bottom of the second main body (2), a mounting groove (14) is formed in the lower base plate (4), a right-angle prism (12) is mounted in the mounting groove (14), and the right-angle prism (12) is in contact connection with the second diffusion plate (11).

2. The coaxial light source with the prism module set of claim 1, wherein: the PCB is characterized by further comprising two power lines (17), wherein the two power lines (17) are electrically connected with the first PCB (5) and the second PCB (9) respectively.

3. The coaxial light source with the prism module set of claim 1, wherein: the main body I (1) is provided with a shooting opening (15).

4. The coaxial light source with the prism module set of claim 1, wherein: and the first main body (1), the second main body (2), the upper cover plate (8), the lower cover plate (10) and the second diffusion plate (11) are coaxially provided with light through holes (16).

5. The coaxial light source with the prism module set of claim 1, wherein: a feeding opening (18) is formed in the position, located on the mounting groove (14), of the second main body (2), and the size of the feeding opening (18) is smaller than that of the mounting groove (14).

6. The coaxial light source with the prism module set of claim 1, wherein: the spectroscope (7) is a semi-reflecting and semi-transmitting spectroscope which can allow part of light to transmit and allow the other part of light to reflect, and the beveling angle of the spectroscope (7) is 45 degrees.

7. The coaxial light source with the prism module set of claim 1, wherein: four second PCB boards (9) are arranged, a cavity with a small opening at the upper end and a large opening at the lower end is formed by the four second PCB boards (9), and an included angle of 10-30 degrees is formed between every two adjacent second PCB boards (9).

8. The coaxial light source with the prism module set of claim 1, wherein: the number of the right-angle prisms (12) is four, the four right-angle prisms (12) are all specially-made film-coated corner prisms, and the included angle of the right-angle sides of every two adjacent right-angle prisms (12) is 120 degrees.