Ultraviolet parallel coaxial light source

Abstract

The utility model discloses a kind of ultraviolet parallel coaxial light sources, including shell, power supply component is equipped on the shell, ultraviolet lamp pearl component is equipped on the power supply component, ultraviolet lamp pearl component side is equipped with mounting assembly, flat convex lens is equipped on the mounting assembly, the flat convex lens is quartz material component, flat convex lens side is equipped with frosted glass, frosted glass side is equipped with the spectroscope that is set to a certain angle and is inclined, the spectroscope one end is equipped with light window, the other end is equipped with observation window, and the observation window is equipped with antireflection lens;The utility model discloses a kind of ultraviolet parallel coaxial light sources, using the flat convex lens of quartz material component, it not only has the effect of the light illumination generated by ultraviolet lamp pearl component generates highly parallel ultraviolet light beam, and light transmission is high, ensure that final ultraviolet light beam accurately images, also have high resistance performance, can withstand long time use irradiation of ultraviolet lamp pearl component, not easy to age, long service life.

Description

Technical Field

[0001] This utility model relates to the technical field of parallel coaxial light sources, and in particular to an ultraviolet parallel coaxial light source. Background Technology

[0002] In the field of machine vision, ultraviolet (UV) parallel-coaxial light sources are needed for specific inspection requirements, such as exciting fluorescent substances, detecting minute surface defects or contaminants, and identifying special material markings. The core design of a UV parallel-coaxial light source involves UV LEDs emitting light, which is then used with an acrylic / PMMA Fresnel lens to generate a highly parallel UV beam. This highly parallel UV beam is then separated by a beam splitter, ensuring its illumination direction is parallel to the imaging optical axis of both the camera and the object being illuminated. The advantages of the UV parallel-coaxial light source's optical path are: 1. Elimination of surface diffuse reflection interference. 2. Highlighting of surface micro-features. 3. Reduction of shadows. 4. Uniform illumination.

[0003] However, this type of ultraviolet parallel coaxial light source has the following disadvantages: the surface structure of the Fresnel lens consists of multiple concentric circular serrations (steps). Therefore, in order to reduce costs and meet the needs of mass production, Fresnel lenses are generally made of acrylic / PMMA material through injection molding. However, Fresnel lenses made of acrylic / PMMA material have poor structural durability and cannot be used for long-term exposure to ultraviolet lamp beads. Otherwise, they are prone to aging (acrylic material is prone to yellowing, fogging, embrittlement and cracking after being exposed to ultraviolet lamp beads), which leads to a deterioration in the optical performance of the ultraviolet parallel coaxial light source. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide an ultraviolet parallel coaxial light source. The plano-convex lens contained therein is made of quartz glass. Therefore, the plano-convex lens made of quartz glass not only has the function of generating highly parallel ultraviolet beams from the light emitted by the ultraviolet lamp assembly, but also has high durability and can withstand long-term use and irradiation of the ultraviolet lamp assembly, and is not easy to age.

[0005] To achieve the above objectives, this utility model provides an ultraviolet parallel coaxial light source, including a housing, a power supply assembly mounted on the housing, an ultraviolet lamp bead assembly mounted on the power supply assembly, a mounting assembly mounted on one side of the ultraviolet lamp bead assembly, a plano-convex lens mounted on the mounting assembly, the plano-convex lens being a quartz material component, a frosted glass mounted on one side of the plano-convex lens, and a beam splitter tilted at a certain angle mounted on one side of the frosted glass. The beam splitter has a light-emitting window at one end and an observation window at the other end, with an intensifying lens mounted on the observation window.

[0006] Preferably, the light-emitting window and the observation window are respectively opened on the outer shell, the ultraviolet lamp bead assembly, the mounting assembly, the plano-convex lens, the frosted glass and the beam splitter are respectively installed inside the outer shell, and the power supply assembly is installed at one end of the outer shell.

[0007] Preferably, the power supply assembly includes a lamp holder inserted into one end of the housing and a power cord installed at one end of the lamp holder, and the ultraviolet lamp bead assembly is installed on the lamp holder.

[0008] Preferably, the ultraviolet lamp assembly includes a mounting bracket on the power supply assembly, a PCB board mounted on the mounting bracket, and ultraviolet lamps mounted on the PCB board.

[0009] Preferably, the mounting assembly includes a mounting frame, a plano-convex lens mounted on the mounting frame, and a pressure frame fitted onto the plano-convex lens.

[0010] Preferably, the mounting frame has an annular groove that mates with the plano-convex lens, the plano-convex lens is placed on the annular groove, the annular groove has a first light-transmitting hole, the pressure frame has a second light-transmitting hole for the plano-convex lens to fit into, and the pressure frame is fixed to one end of the mounting frame.

[0011] Preferably, an O-ring is provided between the plano-convex lens and the annular groove.

[0012] Preferably, the housing includes a bottom plate, a top plate disposed opposite to the bottom plate, a first side plate disposed on one side between the bottom plate and the top plate, a second side plate disposed on the other side between the bottom plate and the top plate, a first end plate disposed at one end between the bottom plate and the top plate, and a second end plate disposed at the other end between the bottom plate and the top plate.

[0013] Preferably, a first annular groove for engaging with the mounting assembly is provided between the base plate, the first side plate, the top plate, and the second side plate, and a second annular groove for engaging with the frosted glass is provided between the base plate, the first side plate, the top plate, and the second side plate.

[0014] Preferably, an inclined slot is provided between the base plate, the first side plate and the second side plate to engage with the beam splitter.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model is equipped with a power supply component, which supplies power to the ultraviolet lamp bead assembly. The ultraviolet lamp bead emits ultraviolet light, which passes through a plano-convex lens. The plano-convex lens generates a highly parallel ultraviolet beam. The frosted glass makes the highly parallel ultraviolet beam more uniform, and the beam splitter makes the direction of the highly parallel ultraviolet beam parallel to the imaging optical axis of the camera and the object being illuminated. Thus, the highly parallel ultraviolet beam illuminates the object through the light-emitting window, and the camera can observe the illuminated object through the observation window.

[0017] 2. In summary, the ultraviolet parallel coaxial light source provided by this utility model includes a plano-convex lens made of quartz material. This lens not only generates highly parallel ultraviolet beams from the light emitted by the ultraviolet lamp assembly, but also has high light transmittance, ensuring accurate imaging of the final ultraviolet beam. Furthermore, it has high durability, can withstand long-term exposure to the ultraviolet lamp assembly, is not prone to aging, and has a longer service life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an ultraviolet parallel coaxial light source provided by an embodiment of this utility model;

[0020] Figure 2 This is an exploded structural diagram of an ultraviolet parallel coaxial light source provided by an embodiment of this utility model;

[0021] Figure 3 This is a front cross-sectional schematic diagram of an ultraviolet parallel coaxial light source provided in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the mounting assembly and plano lens provided in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the power supply assembly provided in an embodiment of the present invention.

[0024] The diagram includes:

[0025] 1. Outer shell; 101. First annular slot; 102. Second annular slot; 103. Inclined slot; 11. Base plate; 12. Top plate; 13. First side plate; 14. Second side plate; 15. First end plate; 16. Second end plate; 17. Light emission window; 18. Observation window; 2. Power supply assembly; 21. Lamp holder; 22. Power cord; 3. UV lamp bead assembly; 31. Mounting base; 32. PCB board; 33. UV lamp bead; 4. Mounting assembly; 41. Mounting frame; 411. Annular groove; 415. First light transmission hole; 419. O-ring; 42. Pressure frame; 425. Second light transmission hole; 5. Plano-convex lens; 6. Frosted glass; 7. Beam splitter; 8. Intensifying lens. Detailed Implementation

[0026] The technical solution of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 5 This utility model provides an ultraviolet parallel coaxial light source, including a housing 1, a power supply assembly 2 mounted on the housing 1, an ultraviolet lamp bead assembly 3 mounted on the power supply assembly 2, a mounting assembly 4 mounted on one side of the ultraviolet lamp bead assembly 3, a plano-convex lens 5 mounted on the mounting assembly 4, the plano-convex lens 5 being a quartz material component, a frosted glass 6 mounted on one side of the plano-convex lens 5, a beam splitter 7 tilted at a certain angle mounted on one side of the frosted glass 6, a light-emitting window 17 at one end of the beam splitter 7, an observation window 18 at the other end, and an intensifying lens 8 mounted on the observation window 18.

[0028] The light-emitting window 17 and the observation window 18 are respectively opened on the outer shell 1. The ultraviolet lamp bead assembly 3, the mounting assembly 4, the plano-convex lens 5, the frosted glass 6 and the beam splitter 7 are respectively installed inside the outer shell 1. The power supply assembly 2 is installed at one end of the outer shell 1.

[0029] The power supply assembly 2 includes a lamp holder 21 inserted into one end of the housing 1 and a power cord 22 installed at one end of the lamp holder 21. The ultraviolet lamp bead assembly 3 is installed on the lamp holder 21.

[0030] The ultraviolet lamp assembly 3 includes a mounting base 31 mounted on the power supply assembly 2, a PCB board 32 mounted on the mounting base 31, and ultraviolet lamps 33 mounted on the PCB board 32.

[0031] The mounting bracket 31 is installed on the lamp holder 21 of the power supply assembly 2, and the mounting bracket 31 is stably installed on the lamp holder 21 of the power supply assembly 2 by means of bolt tightening.

[0032] Mounting component 4 includes mounting frame 41, plano-convex lens 5 mounted on mounting frame 41, and pressure frame 42 fitted onto plano-convex lens 5.

[0033] The mounting frame 41 has an annular groove 411 that mates with the plano-convex lens 5. The plano-convex lens 5 is placed in the annular groove 411. The annular groove 411 has a first light-transmitting hole 415, which allows ultraviolet light emitted by the ultraviolet lamp bead 33 to illuminate one end of the plano-convex lens 5. The pressure frame 42 has a second light-transmitting hole 425, which allows the plano-convex lens 5 to be fitted into. The second light-transmitting hole 425 allows the other end of the plano-convex lens 5 to generate a highly parallel ultraviolet beam that illuminates the frosted glass 6. The pressure frame 42 is fixed to one end of the mounting frame 41 by bolts.

[0034] An O-ring 419 is provided between the plano-convex lens 5 and the annular groove 411. The function of the O-ring 419 is to prevent the pressure frame 42 from damaging the plano-convex lens 5 during the process of pressing the plano-convex lens 5 into the annular groove 411.

[0035] The outer casing 1 includes a base plate 11, a top plate 12 disposed opposite to the base plate 11, a first side plate 13 disposed on one side between the base plate 11 and the top plate 12, a second side plate 14 disposed on the other side between the base plate 11 and the top plate 12, a first end plate 15 disposed at one end between the base plate 11 and the top plate 12, and a second end plate 16 disposed at the other end between the base plate 11 and the top plate 12.

[0036] The light-emitting window 17 is located at one end of the top plate 12, and the observation window 18 is located at one end of the bottom plate 11.

[0037] Among them, a first annular groove 101 is provided between the bottom plate 11, the first side plate 13, the top plate 12 and the second side plate 14 to engage with the mounting component 4. The first annular groove 101 ensures that the mounting component 4 is securely installed inside the outer shell 1. A second annular groove 102 is provided between the bottom plate 11, the first side plate 13, the top plate 12 and the second side plate 14 to engage with the frosted glass 6. The second annular groove 102 ensures that the frosted glass 6 is securely installed inside the outer shell 1.

[0038] An inclined slot 103 is provided between the base plate 11, the first side plate 13 and the second side plate 14 to engage with the beam splitter 7. The inclined slot 103 ensures that the frosted glass 6 is securely installed inside the outer casing 1.

[0039] One embodiment of this utility model describes the use of an ultraviolet parallel coaxial light source as follows:

[0040] S0: Set the light-emitting window 17 downwards, place the object directly below the light-emitting window 17, set the observation window 18 upwards, and place the camera directly above the observation window 18.

[0041] S1: Power supply component 2 supplies power to UV lamp bead component 3. UV lamp bead 33 emits UV light. The UV light passes through plano-convex lens 5, which generates a highly parallel UV beam. Frosted glass 6 makes the highly parallel UV beam more uniform and also serves as a dustproof function. Beam splitter 7 makes the direction of the highly parallel UV beam parallel to the imaging optical axis of the camera and the object being illuminated. Thus, the highly parallel UV beam shines on the object through light output window 17, and the camera can observe the illuminated object through observation window 18. Intensifier lens 8 serves as a fog-proof lens and ensures clear imaging.

[0042] The advantages of the ultraviolet parallel coaxial light source of this utility model are as follows: the plano-convex lens 5 made of quartz material not only has the function of generating a highly parallel ultraviolet beam from the light emitted by the ultraviolet lamp bead assembly 3, but also has high light transmittance, ensuring accurate imaging of the final ultraviolet beam. It also has high resistance performance, can withstand long-term use and irradiation of the ultraviolet lamp bead assembly 3, is not easy to age, and has a longer service life.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An ultraviolet parallel coaxial light source, characterized in that, The device includes a housing (1), on which a power supply assembly (2) is mounted, on which an ultraviolet lamp bead assembly (3) is mounted, on one side of the ultraviolet lamp bead assembly (3) is mounted an installation assembly (4), on which a plano-convex lens (5) is mounted, the plano-convex lens (5) is a quartz material component, on one side of the plano-convex lens (5) is a frosted glass (6), on one side of the frosted glass (6) is a beam splitter (7) set at a certain angle, one end of the beam splitter (7) is provided with a light-emitting window (17), and the other end is provided with an observation window (18), and the observation window (18) is provided with an intensifying lens (8).

2. The ultraviolet parallel coaxial light source according to claim 1, characterized in that, The light-emitting window (17) and the observation window (18) are respectively opened on the outer shell (1). The ultraviolet lamp bead assembly (3), the mounting assembly (4), the plano-convex lens (5), the frosted glass (6) and the beam splitter (7) are respectively installed inside the outer shell (1). The power supply assembly (2) is installed at one end of the outer shell (1).

3. The ultraviolet parallel coaxial light source according to claim 1, characterized in that, The power supply assembly (2) includes a lamp holder (21) inserted into one end of the housing (1) and a power cord (22) installed at one end of the lamp holder (21). The ultraviolet lamp bead assembly (3) is installed on the lamp holder (21).

4. The ultraviolet parallel coaxial light source according to claim 1, characterized in that, The ultraviolet lamp assembly (3) includes a mounting base (31) mounted on the power supply assembly (2), a PCB board (32) mounted on the mounting base (31), and ultraviolet lamps (33) mounted on the PCB board (32).

5. The ultraviolet parallel coaxial light source according to claim 1, characterized in that, The mounting assembly (4) includes a mounting frame (41), a plano-convex lens (5) mounted on the mounting frame (41), and a pressure frame (42) fitted onto the plano-convex lens (5).

6. The ultraviolet parallel coaxial light source according to claim 5, characterized in that, The mounting frame (41) has an annular groove (411) that mates with the plano-convex lens (5). The plano-convex lens (5) is placed on the annular groove (411). The annular groove (411) has a first light-transmitting hole (415). The pressure frame (42) has a second light-transmitting hole (425) for the plano-convex lens (5) to be fitted into. The pressure frame (42) is fixed to one end of the mounting frame (41).

7. The ultraviolet parallel coaxial light source according to claim 6, characterized in that, An O-ring (419) is provided between the plano-convex lens (5) and the annular groove (411).

8. The ultraviolet parallel coaxial light source according to claim 1, characterized in that, The outer casing (1) includes a bottom plate (11), a top plate (12) disposed opposite to the bottom plate (11), a first side plate (13) disposed on one side between the bottom plate (11) and the top plate (12), a second side plate (14) disposed on the other side between the bottom plate (11) and the top plate (12), a first end plate (15) disposed at one end between the bottom plate (11) and the top plate (12), and a second end plate (16) disposed at the other end between the bottom plate (11) and the top plate (12).

9. The ultraviolet parallel coaxial light source according to claim 8, characterized in that, A first annular groove (101) is provided between the base plate (11), the first side plate (13), the top plate (12), and the second side plate (14) to engage with the mounting assembly (4), and a second annular groove (102) is provided between the base plate (11), the first side plate (13), the top plate (12), and the second side plate (14) to engage with the frosted glass (6).

10. The ultraviolet parallel coaxial light source according to claim 8, characterized in that, An inclined slot (103) is provided between the base plate (11), the first side plate (13), and the second side plate (14) to engage with the beam splitter (7).

Images