Illumination device and optical path system of body fluid detection device

Abstract

The present invention discloses a lighting device and a light path system for a body fluid detection device, wherein the light path system is composed of a housing, an adapting structure at the bottom of the housing, an isolation room isolating external light, and also includes a light path component in the housing, the light path component is composed of a light emitting body, a second light-transmitting hole, a light diffusion plate, and a third light-transmitting hole, and the remaining light path components are all isolated from the outside world and the isolation room. The present invention effectively selects, filters, and adjusts the brightness of the light emitted by the LDE lamp, and finally forms light of a quality that is very suitable for the light intensity, ray direction, light wavelength, color temperature and hue required by the optical lens component, providing assistance for further providing a clearer body fluid imaging effect. The present invention has a sophisticated structure, a reasonable design, and is easy to produce and install, as well as easy to use.

Description

Technical Field

[0001] The invention relates to a portable body fluid observation device, which belongs to medical equipment. Background Art

[0002] Chinese patent CN209707391U (application number: CN201920431827.6) is a portable observation device for semen, urine and saliva with illumination.

[0003] CN209764737U (application number: CN201920426652.X) discloses a portable body fluid detection device equipped with an illumination device.

[0004] CN109856145A (application number: CN201910256102.2) discloses a portable body fluid detection device with auxiliary lighting and position adjustment.

[0005] The above three patents all disclose devices for self-observation of body fluids at home, by dropping body fluids on a glass slide, then magnifying it through a lens under the glass slide, and then aiming a mobile phone camera at the magnifying lens and turning on the mobile phone camera, the body fluids on the lens can be observed on the mobile phone screen. An example of using the device to measure human semen is also given.

[0006] However, the above-mentioned and existing portable body fluid detection devices for home use all have defects such as unreasonable structure, unreasonable light source layout, insufficient detection clarity, and inconvenient operation.

[0007] It mainly includes: lighting devices and natural light both provide light sources for optical lenses, but there are many light sources, and the natural light source is messy. The light reflected from various angles forms messy light diffraction on the optical lens, affecting observation.

[0008] The light source provided by the lighting device is not effective. Summary of the invention

[0009] In order to solve the above technical problems, the present invention provides an illumination device and an optical path system for a body fluid detection device.

[0010] Among them, the optical path system of a body fluid detection device provided by the present invention is used to be installed on a lens assembly to provide light source illumination for the lens assembly; it is composed of the following parts:

[0011] (1) a housing, and (2) an adapting structure for connecting with a lens assembly and adapted to a connecting portion of the lens assembly, wherein the adapting structure has an isolation chamber for isolating external light after the optical path system is connected to the connecting portion of the lens assembly.

[0012] (3) and a light path component in the housing, wherein the light path is a path for irradiating light emitted by the light source to the exact position of the lens component; the light path component is composed of the following components in order.

[0013] (Ⅰ) a light emitting body, (Ⅱ) a second light-transmitting hole for blocking excess light from the light emitting body and selecting a portion of the light to pass through, (Ⅲ) a light diffusion plate for adjusting the brightness of the light, and (Ⅳ) a third light-transmitting hole for blocking excess light passing through the light diffusion plate and selecting a portion of the light to pass through, and expanding the illumination area of ​​this portion of light; except for the third light-transmitting hole connected to the isolation room, the remaining light path components are all isolated from the outside and the isolation room.

[0014] The optical path system of a body fluid detection device as described above is further described as follows: the light diffuser plate is fixed to the third light transparent hole by support plates arranged on both sides of the third light transparent hole, and the light diffuser plate is made of one of PMMA material, PS material, PC material, and PP material.

[0015] The optical path system of a body fluid detection device as described above is further described as follows: the adaptation structure is that a circle of second bosses are arranged at the edges of the side walls around the shell below the shell, and the lens assembly includes a support seat, and a circle of annular bosses are arranged above the support seat. The inner wall of the second boss is adapted to the outer wall of the annular boss, and the outer shell and the support seat are clamped by the friction force between the outer wall of the annular boss and the inner wall of the second boss.

[0016] The optical path system of the body fluid detection device as described above is further described as follows: the light emitting body is a green LED lamp, and the light emitting body points to the light path; the light emitting body is arranged on a mounting frame, and a mounting groove for mounting the LED lamp is arranged on the mounting frame at a position corresponding to the second light-transmitting hole;

[0017] The LED lamp is a SMD lamp bead.

[0018] The optical path system of the body fluid detection device as described above is further described as follows: a first gap is set between the light-emitting body and the second light-transmitting hole, a second gap is set between the second light-transmitting hole and the light diffusion plate; the light diffusion plate is closely attached to the third light-transmitting hole;

[0019] The center line of the irradiation direction of the luminous body is taken as the axis of the luminous body, the axis of the luminous body is perpendicular to the light diffusion plate and passes through the light diffusion plate; the second light transmission hole and the third light transmission hole are coaxial with the luminous body.

[0020] The optical path system of the body fluid detection device as described above is further described as follows: the second light-transmitting hole is arranged on the support plate, and a support block is arranged between the support plate and the mounting frame for controlling the distance between the light-emitting body and the second light-transmitting hole and supporting the support plate and the mounting frame mutually;

[0021] One side of the support plate is a first gap, and the other side is a second gap; excluding the second light-transmitting hole, the support plate isolates the first gap from the second gap for light.

[0022] The optical path system of the body fluid detection device as described above is further described as follows: the third light-transmitting hole is in a trumpet-shaped shape, and the hole near the light diffuser is small, and the hole far from the light diffuser is large;

[0023] The third light-transmitting hole is arranged on the light-transmitting mounting plate;

[0024] A supporting body is provided for supporting the supporting plate and the light-transmitting mounting plate mutually;

[0025] One side of the light-transmitting installation plate is the second gap, and the other side is the isolation room; excluding the third light-transmitting hole, the light-transmitting installation plate isolates the second gap from the isolation room.

[0026] The optical path system of a body fluid detection device as described above is further described as follows: the isolation room is composed of one side of a light-transmitting mounting plate and the surface of a lens assembly; and side walls of the isolation room are arranged on the sides of the light-transmitting mounting plate and the lens assembly.

[0027] The optical path system of the body fluid detection device as described above is further described as follows: the housing is composed of a top plate and surrounding side walls, and the light emitter is fixed near the top plate; the mounting frame, the support plate, and the light-transmitting mounting plate are all connected to the surrounding side walls and fixed in the housing;

[0028] The light-transmitting mounting plate is arranged at the lower part of the shell, and the light path component in the shell is sealed by bonding the edge of the light-transmitting mounting plate to the side walls around the shell.

[0029] The lighting device of a body fluid detection device provided by the present invention is composed of the above-mentioned optical path system and an adaption structure combining a lens component and a light path component. The light path component is sealed in a housing.

[0030] A battery for providing electric energy to the light-emitting body, a conductor for connecting the battery and the light-emitting body, and a power switch for connecting and disconnecting the conductor are also provided.

[0031] The battery is a button battery and is arranged in a battery compartment; the battery compartment is arranged on one side of the second gap, specifically in the support body.

[0032] The top of the shell is provided with a button hole and a power indicator light hole.

[0033] The power switch is arranged at one side of the first gap; the upper part of the power switch is a button; the button extends out of the housing from the key hole.

[0034] The mounting frame is made of light-guiding material and is provided with a protruding light column; the light column extends from the power indicator light hole to the outside of the housing.

[0035] Technical effect:

[0036] The present invention effectively selects, filters, and adjusts the brightness of the light emitted by the LDE lamp, and finally forms light with the quality of light intensity, ray direction, light wavelength, color temperature and hue that is very suitable for the optical lens assembly, so as to provide assistance for further providing a clearer body fluid imaging effect. The present invention has a delicate structure, a reasonable design, and is easy to produce, install, and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of the lighting device and the optical path system of the present invention;

[0038] Figure 2 It is a schematic diagram of the assembly of the lighting device and the optical path system;

[0039] Figure 3 It is a schematic diagram of the shell structure of the present invention;

[0040] Figure 4 It is a schematic diagram of the luminous body and the mounting frame of the present invention;

[0041] Figure 5 It is a schematic diagram of the support plate and the second light-transmitting hole structure of the present invention;

[0042] Figure 6 It is a schematic diagram of providing a third light-transmitting hole and a light diffusion plate on the light-transmitting mounting plate of the present invention;

[0043] Figure 7 It is a schematic diagram of the installation of the third light-transmitting hole and the light diffusion plate of the present invention;

[0044] Figure 8 This is a structural diagram of the third light-transmitting hole of the present invention.

[0045] Fig. 9 It is a schematic diagram of the adaptation of the housing and the support seat of the present invention.

[0046] Wherein: housing 1; light-emitting body 2; second light-transmitting hole 3; light diffusion plate 4; third light-transmitting hole 5; small opening 5-1; large opening 5-2; first gap 6; second gap 7; mounting frame 8; power switch 9; light-transmitting mounting plate 10; battery compartment 11; battery 12; button hole 13; indicator light hole 14; light column 15; mounting groove 16; support plate 17; button 18; switch base 19; support plate 20; annular boss 21; glass slide 22; support seat 23; isolation room 24. DETAILED DESCRIPTION

[0047] In this embodiment, implementation methods of the present technology and effects produced by the present technology are described.

[0048] The optical path system of the present invention is installed on the lens assembly to provide light source illumination for the lens assembly.

[0049] In the example description of the present invention, "up, down, left, and right" are mentioned to indicate the orientation. It should be noted that the device of the present invention does not have to be implemented in such an orientation. The use of up, down, left, and right to describe is only for reference to the accompanying drawings, in order to facilitate the understanding of those skilled in the art. For example, taking the light source at the top of the housing 1 as an example, that is, the light source 2 is at the top, and from top to bottom are the light source 2, the second light transmission hole 3, the light diffusion plate 4, the third light transmission hole 5, and the lens assembly at the bottom.

[0050] The present invention also has terms such as "first, second, third" to indicate serial numbers, such as "second light-transmitting hole, third light-transmitting hole". It should be noted that these terms to indicate serial numbers do not refer to the order of installation of these components of the present invention, nor do they refer to other understandings such as important procedures between these components. Instead, when naming, the components are named according to their functions, forms, and commonly used standards. "First" and "second" are added in front only to better distinguish the components, facilitate reading and understanding, and avoid confusion.

[0051] The term "external environment" is used in the present invention, and is defined as follows: relative to the isolation room 24, the external environment refers to the part beyond the shell.

[0052] The following is combined with the attached Figure 1-9 , further providing examples of the present invention.

[0053] Example 1:

[0054] The lens assembly described in the present invention may also be referred to as an optical lens or an optical lens assembly. The lens assembly mainly includes a glass slide 22 for carrying a body fluid specimen, a microscope lens (also referred to as a microscope or a microscope lens) below the glass slide 22, and a support seat 23 for mounting the lens assembly. The connection portion of the lens assembly is arranged above the support seat 23.

[0055] refer to Fig. 9 , one example is: the lens assembly is composed of a support seat and an optical lens.

[0056] The overall shape of the support base is a rectangular plate made of black light-shielding plastic. There is a step hole on the rectangular plate. The optical lens is mainly installed in the step hole. The lower section of the step hole is a small hole (also called an observation hole). The aperture of the small hole is extremely small. The aperture of the small hole in this example is about 0.1 to 1 mm. The center of the optical lens is the lens of the microscope. The lens of the microscope is aligned with the small hole. Through the mobile phone camera and the small hole, observation can be carried out. The first light-transmitting hole is above the step hole. The light from the third light-transmitting hole enters the slide 22 from the first light-transmitting hole. The bottom surface of the support base is a plane with only one small hole.

[0057] The upper surface of the support seat is provided with a first light-transmitting hole, through which the light source is driven into the optical lens, and the first light-transmitting hole is aligned with the middle of the optical lens.

[0058] A circle of annular bosses 21 are arranged around the upper surface of the support seat. The purpose of the annular bosses is to facilitate the buckling of the housing 1 with the annular bosses 21. The two are installed together, so the outer edge of the lower opening of the housing is buckled on the annular bosses. In order to prevent the housing and the upper support seat from being buckled by mistake (causing reverse buckling or buckling in the wrong direction due to unskilled use by consumers), an asymmetric concave-convex structure is arranged at the corresponding position of the annular boss and the lower opening of the housing. When buckling in the wrong direction, it cannot be buckled due to the mismatch of the concave-convex structure; what is described here is a foolproof design.

[0059] Example 2:

[0060] About the shell.

[0061] refer to Figure 1 , 2 , 3, 9, the optical path components of the present invention are all installed in the housing 1, therefore, the housing has two main functions: one is to protect the optical path system to prevent external light from entering the housing and interfering with the optical path system; the other is to install and fix the various components in the optical path system.

[0062] The outer shell 1 of the present invention is a cube with dimensions of 20 mm in height, 30 mm in length and 18 mm in width. The outer shell wall thickness is 1.5-2 mm. The outer shell is made of a light-absorbing material with a certain strength, such as black plastic, which is easy to process, low in cost and light in material.

[0063] The housing 1 is composed of a top plate and surrounding side walls, the top of the housing is closed, and the bottom is open, and all parts in the optical path system are loaded into it from the bottom. The interior of the housing is also a rectangular parallelepiped space.

[0064] The bottom opening of the housing is an adapting structure, which is mainly used for detachable connection with the lens assembly connection part. The lens assembly connection part refers to Example 1, specifically, a circle of annular bosses 21 are arranged around the upper surface of the support seat.

[0065] The "detachable connection" here means that the shell and the support base are originally different components, but the two have a good adaptation structure, and the shell can be easily installed on the support base to form a whole with specific functions; or the shell can be easily removed from the support base, and users without professional training can also install and remove it after simple guidance in the instruction manual; or during the installation or removal process, the structure can be left intact or only the special structure to prevent secondary use can be destroyed; it can be installed or removed without using tools or with very simple tools.

[0066] For example, the adaptable structure may be a magnet structure, in which magnets of different polarities are arranged on the bottom of the shell and the upper surface of the support seat to attract each other, so that the shell can be easily installed on the support seat and can be easily removed.

[0067] A preferred example of the adaptation structure is: a circle of second bosses is provided at the edge of the side walls around the shell below the shell, and a circle of annular bosses 21 is provided above the support seat, the inner wall of the second boss is adapted to the outer wall of the annular boss 21, and the outer wall and the support seat 23 are clamped by the friction force between the outer wall of the annular boss and the inner wall of the second boss.

[0068] When the optical path system and the lens assembly connection part are connected through the adapter structure, an isolation room 24 is formed at the connection of the adapter structure. The isolation room 24 can isolate external light and prevent external light from entering the lens assembly.

[0069] The isolation room 24 is a roughly rectangular space, which is composed of the lower surface of the light-transmitting mounting plate 10, the upper surface of the support seat 23, and the inner wall of the annular boss.

[0070] The luminous body 2, the mounting frame 8, the supporting plate 17 and the light-transmitting mounting plate 10 are all fixed in the housing.

[0071] Example 3:

[0072] About the light path.

[0073] The light path is an irradiation path that directs the light emitted by the LED to the exact position of the lens assembly; specifically, the light emitted by the LED, after being adjusted by various positions and components in the optical path, forms light intensity, ray direction, light wavelength, color temperature, hue, etc., which is suitable for facilitating the observation of the body fluid sample on the slide 22, and provides assistance for further providing a clearer body fluid imaging effect.

[0074] refer to Figure 1-2 The light path component is composed of the following components in order: a light emitting body 2, a second light transmission hole 3, a light diffusion plate 4, and a third light transmission hole 5.

[0075] The topmost part is an LED light emitting green light.

[0076] Below the luminous body 2 is a second light-transmitting hole 3, which blocks excess light from the luminous body but allows a portion of the light to pass through to the bottom of the second light-transmitting hole.

[0077] Below the second light-transmitting hole is a light diffusion plate 4, which plays a role in adjusting the brightness, color temperature and hue of the light.

[0078] Below the light diffuser is a third light-transmitting hole 5, which blocks the excess light that passes through the light diffuser and then selects only a portion of the light to pass through, and at the same time expands the irradiation area of ​​this portion of light.

[0079] The center line of the irradiation direction of the light-emitting body is taken as the axis of the light-emitting body, and the axis of the light-emitting body is perpendicular to the light diffuser and passes through the light diffuser; the second light-transmitting hole and the third light-transmitting hole are coaxial with the light-emitting body, and the glass slide 22 of the lens assembly is also coaxial with the axis of the light-emitting body. Therefore, the light coming out of the light-emitting body 2 is adjusted by multiple components and finally irradiated onto the glass slide 22, providing excellent light for microscope observation under the glass slide 22.

[0080] In order to prevent interference from external light, except for the third light-transmitting hole connected to the isolation room, the remaining light path components are all isolated from the outside world and the isolation room.

[0081] A first gap 6 is provided between the luminous body 2 and the second light-transmitting hole, and a second gap 7 is provided between the second light-transmitting hole and the light diffusion plate.

[0082] The first gap 6 is 5-7mm. The purpose of the first gap 6 is: after the light comes out of the light source 2, there is a process of scattering and attenuation. Leaving a certain gap to intercept the light that has been attenuated to a certain extent can make the light finally irradiated on the glass slide more gentle, and the farther away from the light source, the smaller the light scattering. Therefore, leaving a certain gap to intercept the light that has been scattered to a certain extent can make the light transmitted to the bottom be irradiated in a straight line to reduce scattering.

[0083] The second gap 7 is 3 mm, and the second gap 7 is also used to increase the attenuation of light and to intercept a part of the scattered light to pass through the third light transmission hole.

[0084] Therefore, in this example, the luminous body is at the top of the housing, that is, the luminous body is at the top, and from top to bottom are the luminous body, the second light-transmitting hole, the light diffuser 4, the third light-transmitting hole 5, and the lens assembly at the bottom. Then the light-emitting point of the LED lamp is 6-8mm away from the lower opening of the second light-transmitting hole, the upper surface of the light diffuser is 2-4mm away from the lower opening of the second light-transmitting hole, the thickness of the light diffuser is 1mm, and the lower surface of the light diffuser is in close contact with the upper opening of the third light-transmitting hole.

[0085] Example 4:

[0086] The light source 2 (also called light source) in this example is a green LED lamp. As for the choice of green light source, since the green light source is a cool-toned light source with a visible light wavelength of 0.492 to 0.455 microns, it visually has a sense of tightening the contour. In naked eye observation, the contours of objects can be separated more clearly, the foreground objects can be separated from the background objects, and the observed objects can be made clearer. Therefore, the observed objects on the slide, such as the swimming sperm in semen, can be seen more clearly with distinct contours.

[0087] refer to Figure 2 , 4 The light-emitting body 2 is specifically a miniature SMD lamp bead, and the light-emitting surface is less than 1.5 square millimeters. The light-emitting surface of the LED lamp points to the light path; the LED lamp is arranged on a mounting frame 8, and a mounting groove 16 for mounting the LED lamp is arranged on the mounting frame corresponding to the second light-transmitting hole. The mounting frame 8 is made of a transparent material, which does not have an isolating effect on the light, but has a certain guiding effect on the light and can guide the light. When the LED lamp is lit, a part of the light is absorbed by the mounting frame 8, and the part of the light absorbed is easy to form visible light on various surfaces of the mounting frame, among which the protruding light column 15 on the mounting frame also has visible light. When the protruding light column 15 extends out of the housing, it can be seen by the naked eye.

[0088] The height of the legs of the mounting frame 8 is 4 mm, and the position for mounting the LED lamp is vacant. The mounting frame 8 does not need to be bonded to the inner surface of the shell, and the mounting frame is fixed to the top of the shell by squeezing the components below toward the upper part of the shell.

[0089] Example 5:

[0090] refer to Figure 6-7 The upper surface of the light diffuser plate 4 is 2-4 mm away from the lower opening of the second light transmission hole, the thickness of the light diffuser plate is 1 mm, and the lower surface of the light diffuser plate is in close contact with the upper opening of the third light transmission hole. Support plates 20 are arranged on both sides of the third light transmission hole 5, and the light diffuser plate is fixed on the support plates 20 and fixed at the third light transmission hole. The light diffuser plate can be made of PMMA material, PS material, PC material, PP material, etc. These materials have good light transmittance and can adjust light intensity, color temperature, and color tone.

[0091] The second light-transmitting aperture has a diameter of 2 mm and a hole depth of 1.7-2 mm.

[0092] refer to Figure 5 The second light-transmitting hole 3 is arranged on the support plate 17, and the support plate 17 is made of black light-absorbing material. The support plate is generally a rectangular parallelepiped, and the dimensions of the four sides of the support plate are adapted to the dimensions of the inner wall of the shell, so that the support plate is positioned left, right, front, and rear after being installed in the shell. Similarly, the support plate may not be bonded to the inner surface of the shell, and the support plate may be squeezed toward the upper part of the shell through the various components below, so that the support plate is fixed below the mounting frame 8.

[0093] A support block is provided for controlling the distance between the light emitter 2 and the second light-transmitting hole 3 and supporting the support plate and the mounting frame; the support block can be provided below the mounting frame or above the support plate, and of course, it can also be an independent component. A preferred example is: the support block includes a convex block provided below the mounting frame, and a boss protruding upwards provided at the edge around the supporting plate, the boss and the convex block below the mounting frame fit each other, so that the distance between the light emitter and the second light-transmitting hole is fixed.

[0094] One side of the support plate 17 is a first gap 6 , and the other side is a second gap 7 ; the first gap 6 and the second gap 7 are light-isolated by the support plate, and only the second light-transmitting hole is retained for light transmission.

[0095] refer to Figure 6-8 The third light-transmitting hole 5 is in the shape of a trumpet, and the part close to the light diffuser is a small mouth 5-1, and the part far from the light diffuser is a large mouth 5-2; the small mouth 5-1 is at the top, and gradually expands downward in a trumpet shape, and the large mouth 5-2 is at the bottom. The inner diameter of the large mouth is 5 mm, and the inner diameter of the small mouth is 1 mm. The total length of the third light-transmitting hole 5 (the distance from the small mouth to the large mouth, or the height) is 5-7 mm. The third light-transmitting hole diffuses the light passing through the light diffuser in the shape of a trumpet, one is to further attenuate the light and disperse it evenly, and the other is to expand the irradiation area so that the light can completely cover the upper surface of the slide. The light-transmitting mounting plate 10 has the second gap 7 on the top and the isolation room on the bottom. The light-transmitting mounting plate 10 isolates the second gap 7 from the isolation room, and only allows the third light-transmitting hole to pass the light.

[0096] participate Figure 6-7 The third light-transmitting hole 5 is arranged on the light-transmitting mounting plate 10; it is integrated with the light-transmitting mounting plate 10, specifically, the third light-transmitting hole wall is integrated with the light-transmitting mounting plate.

[0097] The light-transmitting mounting plate 10 is in the shape of a rectangular parallelepiped as a whole, and the dimensions of the four sides are adapted to the dimensions of the inner wall of the housing to form a transition fit, so that the support plate 17 is positioned at the left, rear, front, and rear positions after being installed in the housing, and the light-transmitting mounting plate 10 is fixed to the inner wall of the housing by welding, gluing, or clamping with a card slot, and the mounting plate, support plate 17 and other components are fixed in the housing at the same time. The height of the light-transmitting mounting plate 10 does not exceed the total length of the third light-transmitting hole. In a preferred example, the thickness of the light-transmitting mounting plate is 3 mm, and the third light-transmitting hole 5 protrudes upward, similar to a tower.

[0098] In order to fix the distance between the support plate 17 and the light-transmitting mounting plate 10, a support body is provided to support the support plate and the light-transmitting mounting plate to each other.

[0099] The support body can be arranged below the support plate, or above the light-transmitting mounting plate, or can be an independent component. A preferred example is: the support body includes a convex block arranged below the support plate, and a boss arranged above the light-transmitting mounting plate and protruding upward, the boss and the convex block below the support plate fit each other, so that the distance between the light-emitting body and the second light-transmitting hole is fixed.

[0100] The bottom of the light-transmitting mounting plate 10 is flat as a whole, with only the third light-transmitting hole being visible.

[0101] The purpose of the isolation room is to maintain a certain distance between the surface of the lens assembly and the lower surface of the light-transmitting mounting plate. Maintaining a certain distance can provide a necessary space for placing the specimen (body fluid sample) on the slide 22, and can also allow the light to further diffuse and attenuate, and leave a certain design space for the adaptation structure.

[0102] refer to Fig. 9 The isolation room is composed of one side of the light-transmitting mounting plate and the surface of the lens assembly; and the side walls of the isolation room are set on the sides of the light-transmitting mounting plate and the lens assembly. Therefore, after the optical path system is connected to the connection part of the lens assembly, the isolation room isolates the external light and prevents the light from entering the slide.

[0103] Example 6:

[0104] This example provides a lighting device for a body fluid detection device.

[0105] In the body fluid detection device, a lighting device needs to be provided, and this lighting device can be an LED lamp in the housing.

[0106] An example of this is:

[0107] refer to Fig. 9, the lighting device includes a shell, and an LED lamp (light emitter) in the shell, the shell only includes a battery 12 for providing power to the LED lamp, a conductor connecting the battery 12 and the light emitter, and a power switch 9 for turning on and off the conductor. The shell has an adapter structure combined with a lens assembly, and the battery 12 is a button battery and is arranged in a battery compartment 11. The top of the shell has a button hole 13 and a power indicator light hole 14. The button 18 extends from the button hole 13 to the outside of the shell; the light column 15 extends from the power indicator light hole 14 to the outside of the shell. In this example, the structure of the device is simple, which meets the need to provide basic lighting for the body fluid detection device, and prevents interference from external light through the shell. However, the light intensity, color temperature, and hue are not good, making the observation effect unclear.

[0108] A preferred example is:

[0109] refer to Figure 1 The housing includes the light path assembly provided in the above examples 2 to 5. At the same time, it has an adaption structure for combining the lens assembly with the light path assembly, and the light path assembly is sealed in the housing.

[0110] In addition, a battery 12 is provided in the housing, and the battery can provide electrical energy for the light-emitting body. The battery is a button battery, and its volume can be small. For example, a button battery with a diameter of 12 mm and a thickness of only 2 mm can be used, and a 3V DC power supply can provide at least 5 hours of lighting power for an LED lamp bead, which is greater than the working time required by the present invention. Therefore, the battery compartment 11 for installing the battery will not take up space.

[0111] In Example 4, a second gap 7 is provided between the second light-transmitting hole 3 and the light diffuser plate 4. Since the thickness of the light-transmitting mounting plate 10 is 3 mm, the total length of the third light-transmitting hole is 5-7 mm, the upper surface of the light diffuser plate is 2-4 mm away from the lower opening of the second light-transmitting hole, and the thickness of the light diffuser plate is 1 mm, the second gap (the distance between the upper surface of the light-transmitting mounting plate and the lower surface of the support plate) has a height space of at least 7 mm, which is sufficient to install the battery compartment 11.

[0112] In Example 4, a first gap 6 is provided between the light-emitting body and the second light-transmitting hole. After calculations are made in Example 4 about the structure and size of the light-emitting body mounting frame and the support plate, the first gap has a large enough space to install the power switch 9. Therefore, a switch base 19 is provided on the support plate, the power switch 9 is installed on the switch base 19, and the switch base 19 is in the second gap.

[0113] Specifically: in this example, the battery compartment 11 is arranged on the right side of the shell, the power switch 9 is arranged on the right side of the shell, and the light-emitting body, the second light-transmitting hole 3, the light diffusion plate, and the third light-transmitting hole are arranged on the left side of the shell.

[0114] The upper part of the power switch 9 is a button 18; therefore, the power switch 9 is arranged perpendicular to the light-emitting body mounting frame, so that the button 18 passes through the light-emitting body mounting frame, and then the button extends out of the housing from the button hole 13, which is convenient for key operation. The button diameter is 6mm, and the button hole 13 on the housing has a diameter greater than 6.1mm.

[0115] In this example, the mounting frame is made of a transparent light-guiding material and does not isolate the light. Instead, it has a certain guiding effect on the light and can guide the light. The mounting frame is provided with a light column 15 protruding upward with a diameter of 1 mm; the top of the outer shell is provided with a power indicator light hole 14 slightly larger than the diameter of the light column; the light column 15 extends from the power indicator light hole to the outside of the outer shell. When the LED lamp is turned on, a part of the light is absorbed by the mounting frame, and the part of the light absorbed is easy to form visible light on various surfaces of the mounting frame, among which the protruding light column on the mounting frame also has visible light. When the protruding light column extends out of the outer shell, it can be seen by the naked eye.

[0116] When using the present invention, the body fluid is loaded onto the glass slide 22 of the lens assembly, and then the lighting device is snapped onto the support seat 23 of the lens assembly through the adapter structure. The LED light is turned on by pressing the button switch, and the light is illuminated for the glass slide after a series of attenuation, interception, and adjustment of color temperature, hue, and brightness, making it more convenient to observe the body fluid through the lens assembly.

[0117] The above is an exemplary description of the present invention. In the above examples, each example has its own emphasis. If the complete content is not described in a certain example, it can be combined with the content shown in other examples. The above examples are not single examples. New examples can be composed under possible combinations, but the composed new examples must not violate the core idea of ​​the present invention. Furthermore, if the combination of certain examples conflicts with the invention content of this patent and forms a contradiction, the examples should not be simply combined. Such combinations should be avoided or adjustments should be made to eliminate conflicts and contradictions after the combination.

[0118] It should be noted that this example is not limited to the only implementation method of the present invention, but illustrates one or more of the many methods that can be implemented by the present invention. Other technical solutions obtained without departing from the core idea of ​​the invention fall within the protection scope of the present invention.

Claims

1. An optical path system of a body fluid detection device, used to be installed on a lens assembly to provide light source illumination for the lens assembly; characterized in that: It consists of the following parts (1) Casing; (2) having an adapting structure for connecting with the lens assembly and adapted to the connecting portion of the lens assembly, wherein the adapting structure has an isolation chamber for isolating external light after the optical path system is connected to the connecting portion of the lens assembly; (3) and a light path component in the housing, wherein the light path is a path for irradiating light emitted by the light source to the exact position of the lens component; the light path component is composed of the following components in order: (I) a light emitting body, (II) a second light-transmitting hole for blocking excess light from the light emitting body and selecting a portion of the light to pass through, (III) a light diffusion plate for adjusting light brightness, and (IV) a third light-transmitting hole for blocking excess light passing through the light diffusion plate and selecting a portion of the light to pass through and expanding the illumination area of ​​the portion of light; except for the third light-transmitting hole connected to the isolation room, the remaining light path components are all isolated from the outside and the isolation room.

2. The optical path system of a body fluid detection device according to claim 1, characterized in that: The light diffusion plate is fixed at the third light transmission hole through support plates arranged at both sides of the third light transmission hole, and the light diffusion plate is made of one of PMMA material, PS material, PC material and PP material.

3. The optical path system of a body fluid detection device according to claim 1, characterized in that: The adaptation structure is that a circle of second bosses is arranged at the edge of the side walls around the shell below the shell, and the lens assembly includes a support seat, and a circle of annular bosses is arranged above the support seat. The inner wall of the second boss is adapted to the outer wall of the annular boss, and the outer wall and the support seat are clamped by the friction force between the outer wall of the annular boss and the inner wall of the second boss.

4. The optical path system of a body fluid detection device according to claim 1, characterized in that: The illuminant is a green LED lamp, and the illuminant points to the light path; the illuminant is arranged on a mounting frame, and a mounting groove for mounting the LED lamp is arranged on the mounting frame at a position corresponding to the second light-transmitting hole; The LED lamp is a SMD lamp bead.

5. The optical path system of a body fluid detection device according to claim 4, characterized in that: A first gap is provided between the luminous body and the second light-transmitting hole, and a second gap is provided between the second light-transmitting hole and the light diffusion plate; the light diffusion plate is closely attached to the third light-transmitting hole; The center line of the irradiation direction of the luminous body is taken as the axis of the luminous body, the axis of the luminous body is perpendicular to the light diffusion plate and passes through the light diffusion plate; the second light transmission hole and the third light transmission hole are coaxial with the luminous body.

6. The optical path system of a body fluid detection device according to claim 5, characterized in that: The second light-transmitting hole is arranged on the support plate, and a support block is arranged between the support plate and the mounting frame for controlling the distance between the light-emitting body and the second light-transmitting hole and supporting the support plate and the mounting frame mutually; One side of the support plate is a first gap, and the other side is a second gap; excluding the second light-transmitting hole, the support plate isolates the first gap from the second gap for light.

7. The optical path system of a body fluid detection device according to claim 6, characterized in that: The third light-transmitting hole is in a trumpet-shaped shape, with a small opening near the light diffuser and a large opening far from the light diffuser; The third light-transmitting hole is arranged on the light-transmitting mounting plate; A supporting body is provided for supporting the supporting plate and the light-transmitting mounting plate mutually; One side of the light-transmitting installation plate is the second gap, and the other side is the isolation room; excluding the third light-transmitting hole, the light-transmitting installation plate isolates the second gap from the isolation room.

8. The optical path system of a body fluid detection device according to claim 7, characterized in that: The isolation room is composed of one side of a light-transmitting mounting plate and the surface of a lens assembly; and the side walls of the isolation room are arranged on the sides of the light-transmitting mounting plate and the lens assembly.

9. The optical path system of a body fluid detection device according to claim 8, characterized in that: The shell is composed of a top plate and surrounding side walls, and the light emitter is fixed near the top plate; the mounting frame, support plate, and light-transmitting mounting plate are all connected to the surrounding side walls and fixed in the shell; The light-transmitting mounting plate is arranged at the lower part of the shell, and the light path component in the shell is sealed by bonding the edge of the light-transmitting mounting plate to the side walls around the shell.

10. A lighting device for a body fluid detection device, characterized in that: The optical path system is composed of the optical path system as claimed in any one of claims 1 to 9, and an adapting structure combining the lens assembly and the optical path assembly; the optical path assembly is sealed in a housing; A battery for providing electrical energy to the light-emitting body, a conductor for connecting the battery and the light-emitting body, and a power switch for connecting and disconnecting the conductor are also provided; The battery is a button battery and is arranged in a battery compartment; the battery compartment is arranged on one side of the second gap, specifically arranged in the support body; The top of the shell has a button hole and a power indicator light hole; The power switch is arranged at one side of the first gap; the upper part of the power switch is a button; The button extends out of the housing from the button hole; The mounting frame is made of light-guiding material and is provided with a protruding light column; The light beam extends from the power indicator light hole to the outside of the housing.

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