CN215115823U

CN215115823U - Multi-wavelength LED transmission light source fluorescence detection equipment

Info

Publication number: CN215115823U
Application number: CN202022130947.8U
Authority: CN
Inventors: 孟诚卫
Original assignee: Shanghai Tianneng Life Science Co ltd
Current assignee: Shanghai Tianneng Life Science Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-12-10
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a multi-wavelength LED transmission light source fluorescence detection equipment, including placing the case, place the multi-wavelength LED light source as transmission light source in placing the case, still include the shooting storehouse, the shooting storehouse sets up above placing the case and just sets up to placing the chamber, the shooting storehouse is link up with placing the case and sets up; still including shooting the device, shoot the device including the control and interface module, fixed module and the module of making a video recording that connect gradually, the module of making a video recording sets up in placing the mouth, and the camera of the module of making a video recording passes and places the mouth and go deep into and shoot the intracavity. Through regarding multi-wavelength LED lamp as the transmission light source, not only promote the life of light source, reduce the loss cost, and the suitability of LED lamp is good, and the circular telegram response time is short, and multi-wavelength LED light source is as the transmission light source, need not just can realize the transform of light source wavelength through changing the fluorescent tube, and is more convenient, and the light that multi-wavelength LED light source sent is more even and intensity is high, easily forms dark background, obtains good contrast, does benefit to the observation and the control to fluorescence reaction.

Description

Multi-wavelength LED transmission light source fluorescence detection equipment

Technical Field

The utility model belongs to the technical field of biological science fluorescence detects, a multi-wavelength LED transmission light source fluorescence check out test set particularly.

Background

In the field of life sciences, there is a method for detecting nucleic acids, proteins, compounds, and the like, which is mostly dyed or contained by itself using ultraviolet light-excited excitation in the ultraviolet band of the transmission system, and excites a fluorescent material having an excitation wavelength in the ultraviolet band. In the other part, a fluorescent plate having a specific wavelength is excited by ultraviolet rays, the fluorescent plate generates transmitted excitation light having a specific wavelength when excited, and a fluorescent material contained in a sample emits light having a specific wavelength when excited, whereby a target sample such as a nucleic acid, a protein, or a compound is detected. At present, a transmission ultraviolet light source on the market is used as an excitation light source in detection of nucleic acid, protein, compounds and the like, and all traditional filament type glass tube ultraviolet lamps are used, and because the traditional filament type glass tube ultraviolet lamps have short normal service life (continuously lighted for 2000 hours), are fragile and standardize the length and the diameter of the lamps, instruments provided with the traditional ultraviolet lamps need to be frequently replaced after sales, the instruments are likely to need to be installed on site by users, and the miniaturization and the heterotyping of the size design of the instruments are difficult to select. It is disadvantageous for the development of instrumentation. And when different fluorescence tests need to be carried out, different fluorescent plates need to be disassembled and assembled to realize the replacement of different wavelengths.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to solve the problem that the current fluorescent detection equipment excited by the transmission light source needs to be changed through different fluorescent screens excited by the ultraviolet lamp tube in the lamp source of changing different wavelengths in the use process, and the effect is poor and the maintenance cost is high.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a multi-wavelength LED transmission light source fluorescence detection equipment, including placing the case, place the multi-wavelength LED light source as transmission light source in placing the case, still include the shooting storehouse, the shooting storehouse sets up above placing the case and just sets up to placing the chamber, the shooting storehouse with place the case through setting up; still including shooting the device, shoot the device including the control and interface module, fixed module and the module of making a video recording that connect gradually, the module of making a video recording sets up in placing the mouth, the camera of the module of making a video recording passes and places the mouth and go deep into and shoot the intracavity.

Preferably, the wavelength range of the multi-wavelength LED light source is 200-820 nm or white light.

Preferably, the multi-wavelength LED light source is an LED lamp bead with adjustable wavelength.

Preferably, the multi-wavelength LED light source is a plurality of fixed-wavelength LED light beads with different wavelengths or an LED light panel provided with a plurality of fixed-wavelength LED light beads with different wavelengths.

Preferably, the multi-wavelength LED light source is a plurality of LED lamp beads with adjustable wavelengths or an LED light board provided with a plurality of LED lamp beads with adjustable wavelengths.

Preferably, the multi-wavelength LED light source is at least two of blue light and ultraviolet light.

Preferably, the multi-wavelength LED light source comprises an LED light plate, LED lamp beads arranged on the LED light plate and a light-transmitting plate arranged on the LED lamp beads.

Preferably, the placing box is provided with a sealing door, one side of the sealing door, which is close to the placing box, is provided with a light screen, and when the sealing door is closed, the light screen covers an opening of the placing box.

Preferably, the wavelengths of the multi-wavelength LED light source are at least two of 250-260nm, 290-320 nm, 365nm, 460-480nm, 530-540nm, 620nm, 660-720nm and 750-820 nm.

Preferably, the bottom of the placing box is provided with a placing cavity, the multi-wavelength LED light source is arranged in the placing cavity, and the placing cavity is covered with a light-transmitting plate.

Preferably, shoot the storehouse and be equipped with and place the mouth and shoot the chamber, the horizontal cross-sectional area who shoots the chamber increases in proper order along the direction of being close to and placing the case, shoot the chamber with shoot the storehouse through connection.

Preferably, the side walls of the shooting cavity, which are close to the placing cavity, are provided with light absorption coatings.

Preferably, the side wall of the placing box is provided with an inwards concave sliding groove.

Preferably, a placing groove is formed in the placing cavity, a placing strip is arranged at the bottom of the LED light plate, and the shape of the placing strip is matched with that of the placing groove, so that the placing strip is embedded into the placing groove.

Preferably, the placing cavity is further provided with a first interface placing groove and a second interface placing groove, the LED light panel further comprises a first interface and a second interface which are arranged on the same side of the placing strip, and when the LED light panel is placed in the placing cavity, the first interface and the second interface are respectively embedded into the first interface placing groove and the second interface placing groove.

Preferably, the horizontal cross section of the shooting cavity is circular or rectangular.

Preferably, a vertical axis of the shooting cavity is collinear with a vertical axis of the placing cavity.

Preferably, the horizontal cross-sectional area of the shooting cavity at the maximum horizontal cross-sectional area is larger than the horizontal cross-sectional area of the placing cavity.

Preferably, the side wall and the inner wall of the sliding chute are provided with light absorption coatings.

Preferably, the number of the placing grooves is two, the placing grooves are communicated with each other, and the joint of the two placing grooves is the center of the placing groove.

Preferably, the number of the placing grooves is at least three, at least two crossed placing grooves exist in the at least three placing grooves, and the connecting position is the center of the placing grooves.

Preferably, the LED light board is provided with a notch, and the notch is semicircular or crescent.

Preferably, the edge of the fixing module covers the placing opening, a fixing groove is formed in the edge of the placing opening, a fixing protrusion is arranged on the edge of one side of the fixing module, which is in contact with the placing opening, and the fixing protrusion is embedded into the fixing groove due to the shape matching of the fixing protrusion and the fixing groove.

Preferably, the fixed slot encircles place the mouth setting and end to end.

Preferably, the areas, which cover the placing openings, of the edges of the fixing modules are provided with light absorption coatings.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the utility model discloses a multi-wavelength LED transmission light source fluorescence check out test set, including placing the case, place the incasement and place the multi-wavelength LED light source as transmission light source. Through regard as transmission light source with the multi-wavelength LED lamp, not only can promote the life of light source, reduce the loss cost, and the suitability of LED lamp is good, and the circular telegram response time is short, and the multi-wavelength LED light source is as transmission light source, for traditional lamp cast transmission light source, because the light that the multi-wavelength LED light source sent is more even and intensity is high, forms dark background easily, obtains good contrast, is favorable to the observation and the control to fluorescence reaction. And because the LED lamp bead has the characteristics of low energy consumption and small volume, the miniaturization and the heterotyping of instrument design and the possibility of respectively using a plurality of uniform excitation wavelength light sources in the same sample plate size become possible. The long service life and the indestructible characteristic of the LED light source enable the integration of non-later installation of instrument design and the reduction of after-sale service frequency and the like to have great advantages.

Drawings

Fig. 1 is a schematic structural diagram of a multi-wavelength LED transmission light source fluorescence detection apparatus according to the present invention;

FIG. 2 is a schematic structural view of the apparatus of the present invention with the photographing device removed;

FIG. 3 is a front view of the present invention;

FIG. 4 is a schematic structural view of the present invention with the light-transmitting plate and the light source removed;

FIG. 5 is a schematic structural view of the present invention for removing the transparent plate;

fig. 6 is a top view of the shooting chamber of the present invention;

fig. 7 is a schematic structural view of the LED light panel of the present invention.

The reference numerals in the schematic drawings illustrate:

100. a shooting bin; 110. a placement port; 111. a placement groove; 120. a shooting cavity;

200. placing a box; 210. a baffle plate; 220. a light-transmitting plate; 230. a side wall; 231. a chute; 240. a sealing door; 241. a visor; 250. a placement chamber; 251. a placement groove; 252. an interface placing groove I; 253. an interface placing groove II; 260. a light source; 261. an LED light panel; 262. LED lamp beads; 263. placing the strips; 264. A notch; 265. an interface I; 266. interface two;

300. a photographing device; 310. a control and interface module; 320. a fixed module; 330. and a camera module.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but which are provided so as to render the disclosure of the invention more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 to 7, the fluorescence detection apparatus of the present embodiment includes a placing box 200, and a multi-wavelength LED light source 260 as a transmission light source is placed in the placing box 200. Through regard as transmission light source with multi-wavelength LED lamp, not only can promote the life of light source, reduce the loss cost, and the suitability of LED lamp is good, and the circular telegram response time is short, and multi-wavelength LED light source 260 is as transmission light source, for traditional light tube type transmission light source, because the light that multi-wavelength LED light source 260 sent is more even and intensity is high, forms dark background easily, obtains good contrast, is favorable to the observation and the control to fluorescence reaction. And because the LED lamp bead 262 has the characteristics of low energy consumption and small volume, the miniaturization and the heterotyping of instrument design and the possibility of respectively using a plurality of uniform excitation wavelength light sources in the same sample plate size become possible. The long life and non-fragile nature of LED light source 260 make the integration of non-later stage installation of instrument design and reduce the aspect such as after-market frequency of service have very big advantage.

The multi-wavelength LED light source 260 of the present embodiment has a wavelength range of 200-820 nm or white light. The multi-wavelength LED light source 260 is an LED lamp bead 262 with adjustable wavelength. The wavelength required by the fluorescence test can be conveniently and quickly obtained under the condition of not replacing the lamp source. The wavelength of the multi-wavelength LED light source 260 is at least two of 250-260nm, 290-320 nm, 365nm, 460-480nm, 530-540nm, 620nm, 660-720nm and 750-820 nm.

The multi-wavelength LED light source 260 of the present embodiment has at least two wavelengths of blue light and ultraviolet light.

The multi-wavelength LED light source 260 of this embodiment includes LED worn-out fur 261 and sets up LED lamp pearl 262 on LED worn-out fur 261, through with LED lamp pearl 262 integrated on LED worn-out fur 261, is convenient for adjust luminance and wavelength that LED lamp pearl 262 lighted, thereby conveniently controls the intensity of transmitted light and is convenient for observe the fluorescence reaction.

The equipment of this embodiment still includes shoots storehouse 100, shoot storehouse 100 set up in placing case 200 top and just to placing the chamber 250 setting, shoot storehouse 100 with place case 200 and link up the setting.

The placing box 200 of this embodiment is equipped with sealing door 240, one side that sealing door 240 is close to placing box 200 is equipped with light screen 241, when sealing door 240 closed, light screen 241 covers the opening of placing box 200, thereby can effectually prevent that sealing door 240 when closed, sealing door 240 and the clearance department of placing box 200 have light entering place the box 200 in thereby influence the fluorescence reaction monitoring process.

The bottom of the placing box 200 is provided with a placing cavity 250, the multi-wavelength LED light source 260 is arranged in the placing cavity 250, the placing cavity 250 is covered with a light-transmitting plate 220, the light-transmitting plate 220 can effectively isolate the placing cavity 250, a reaction sample in the placing box 200 is prevented from permeating liquid into the placing cavity 250 and contacting with the multi-wavelength LED light source 260 to cause damage, light rays emitted by the multi-wavelength LED light source 260 can be prevented from being blocked by the light-transmitting plate 220, and the light-transmitting plate 220 can also be a light-transmitting device with a light-gathering function.

Shoot storehouse 100 and be equipped with and place mouth 110 and shoot chamber 120, the horizontal cross-sectional area who shoots chamber 120 increases along being close to the direction of placing case 200 in proper order, shoot chamber 120 with shoot storehouse 100 through connection. The multifunctional photographing device is characterized by further comprising a photographing device 300, wherein the photographing device 300 comprises a control and interface module 310, a fixing module 320 and a camera module 330 which are sequentially connected, the camera module 330 is arranged in the placing opening 110, and a camera of the camera module 330 penetrates through the placing opening 110 and penetrates into the photographing cavity 120. Camera module 330 specifically is the camera, and control and interface module 310 is controller and data or power source, and when shooting device 300 placed in shooting storehouse 100, camera module 330's camera was placed in shooting chamber 120, because the horizontal cross-sectional area who shoots chamber 120 increases along being close to the direction of placing case 200 in proper order, so the camera can be comprehensive to placing the incasement and shoot 200.

Shoot chamber 120 and be close to all be equipped with the extinction coating on placing the lateral wall of chamber 250, can prevent that the lateral wall of shooting chamber 120 from reflecting the exciting light that multi-wavelength LED light source 260 sent because the exciting light of reflection can interfere fluorescence to the picture that leads to the camera to shoot is inaccurate and unclear, and then influences the testing process and the result judgement to fluorescence reaction.

The side wall 230 of the placing box 200 is provided with an inward concave sliding groove 231, the partition board is placed through the sliding groove 231 and the sample to be detected is placed, and the sliding groove 231 of the inward concave groove can prevent exciting light from being shielded so as to influence the fluorescence detection process.

The placing groove 251 is arranged in the placing cavity 250, the placing strip 263 is arranged at the bottom of the LED light plate 261, and the shape of the placing strip 263 is matched with that of the placing groove 251, so that the placing strip 263 is embedded into the placing groove 251, and the LED light plate 261 is convenient to place and fix.

The placing cavity 250 is further internally provided with a first interface placing groove 252 and a second interface placing groove 253, the LED optical plate 261 further comprises a first interface 265 and a second interface 266 which are arranged on the same side of the placing strip 263, and when the LED optical plate 261 is placed in the placing cavity 250, the first interface 265 and the second interface 266 are respectively embedded into the first interface placing groove 252 and the second interface placing groove 253.

The horizontal cross section of the shooting cavity 120 is circular or rectangular, which is beneficial to ensuring the shooting angle of the camera, so that the shooting by the camera is more accurate and comprehensive. The vertical axis of the shooting cavity 120 is collinear with the vertical axis of the placing cavity 250, so that the camera can be over against the LED light board 261, and the shooting effect of the camera is further guaranteed.

The horizontal cross-sectional area of the maximum horizontal cross-sectional area of the shooting cavity 120 is larger than the horizontal cross-sectional area of the placing cavity 250, so that the shooting angle of the camera can contain the placing cavity 250 as much as possible, and the shooting effect of the camera is further ensured.

The side wall 230 and the inner wall of the sliding groove 231 are both provided with light absorption coatings, so that the excitation light emitted by the multi-wavelength LED light source 260 is prevented from being reflected, and the reflected excitation light interferes with the fluorescence, so that the picture shot by the camera is inaccurate and unclear, and the detection process and result judgment of the fluorescence reaction are influenced.

The number of the placing grooves 251 is two and they are communicated with each other, and the joint of the two placing grooves 251 is the center of the placing groove 251. Under being favorable to placing LED worn-out fur 261 and carrying out the prerequisite fixed to LED worn-out fur 261, further guarantee that LED worn-out fur 261 is located under the camera, guarantee the shooting effect of camera.

The edge of the fixing module 320 covers the placing opening 110, the edge of the placing opening 110 is provided with a fixing groove 111, the edge of one side of the fixing module 320 contacting with the placing opening 110 is provided with a fixing protrusion 321, and the shape of the fixing protrusion 321 is matched with the shape of the fixing groove 111 so that the fixing protrusion 321 is embedded into the fixing groove 111. When the shooting device 300 is placed on the shooting bin 100, the fixing protrusions 321 are embedded into the fixing grooves 111, so that the fixing modules 320 can be better fixed with the shooting bin 100, the fixing grooves 111 surround the placing openings 110 and are connected end to end, the fixing protrusions 321 are matched with the fixing grooves 111, and the fixing modules 320 and the shooting bin 100 can be well sealed. In addition, the edge of the fixing module 320 is provided with a light absorbing coating in the area covering the placing opening 110, which can further prevent the external relationship from entering the placing box 200 through the gap between the photographing device 300 and the photographing chamber 100

The LED light plate 261 of this embodiment is provided with a notch 264, and the notch 264 is in a semicircular shape or a crescent shape. The user can conveniently remove the LED light board 261 from the placing cavity 250 through the notch 264, and the first interface 265 and the second interface 266 can be used as a power interface or a control circuit interface.

Example 2

The basic structure of this embodiment is the same as that of embodiment 1, except that: the number of the placing grooves 251 is three, two crossing placing grooves 251 exist among the three placing grooves 251, and the connection point is the center of the placing groove 251.

Example 3

The basic structure of this embodiment is the same as that of embodiment 1, except that: the specific structure of multi-wavelength LED light source 260 is different, and the switching of different wavelengths can be realized to the LED lamp pearl 262 that only needs to correspond the wavelength when needs are adjusted not with the wavelength for the LED worn-out fur 261 of the fixed wavelength's of the fixed wavelength LED lamp pearl 262 that is equipped with a plurality of multi-wavelength LED light source 260 of this embodiment, and is more convenient and practical.

Example 4

The basic structure of this embodiment is the same as that of embodiment 1, except that: the specific structure of the multi-wavelength LED light source 260 is different, and the multi-wavelength LED light source 260 of this embodiment is an LED light plate 261 provided with a plurality of wavelength-adjustable LED lamp beads 262, and the adjustment of the whole light source is realized by adjusting the wavelength of the LED lamp beads 262, and the intensity of the light source is controlled by the number of the LED lamp beads 262.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the protection scope of the present invention; therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a multi-wavelength LED transmission light source fluorescence check out test set which characterized in that: the LED multi-wavelength light source device comprises a placing box (200), wherein a multi-wavelength LED light source (260) serving as a transmission light source is placed in the placing box (200), the LED multi-wavelength light source device further comprises a shooting bin (100), the shooting bin (100) is arranged above the placing box (200) and is opposite to a placing cavity (250), and the shooting bin (100) is communicated with the placing box (200); the multifunctional photographing device is characterized by further comprising a photographing device (300), wherein the photographing device (300) comprises a control and interface module (310), a fixing module (320) and a camera module (330) which are sequentially connected, the camera module (330) is arranged in the placing opening (110), and a camera of the camera module (330) penetrates through the placing opening (110) and penetrates into the photographing cavity (120).

2. The apparatus of claim 1, wherein: the wavelength range of the multi-wavelength LED light source (260) is 200-820 nm or white light.

3. The apparatus of claim 1, wherein: the multi-wavelength LED light source (260) is an LED lamp bead (262) with adjustable wavelength.

4. The apparatus of claim 1, wherein: the multi-wavelength LED light source (260) is an LED light plate (261) provided with a plurality of LED lamp beads (262) with different wavelengths and fixed wavelengths or provided with a plurality of LED lamp beads (262) with different wavelengths and fixed wavelengths.

5. The apparatus of claim 1, wherein: the multi-wavelength LED light source (260) is an LED lamp bead (262) with a plurality of adjustable wavelengths or an LED light plate (261) provided with the LED lamp bead (262) with the plurality of adjustable wavelengths.

6. The apparatus of claim 1, wherein: the multi-wavelength LED light source (260) is at least two of blue light and ultraviolet light.

7. The apparatus of claim 1, wherein: the multi-wavelength LED light source (260) comprises an LED light plate (261), LED lamp beads (262) arranged on the LED light plate (261) and light-transmitting plates (220) arranged on the LED lamp beads.

8. The apparatus of claim 1, wherein: the storage box (200) is provided with a sealing door (240), one side, close to the storage box (200), of the sealing door (240) is provided with a light shielding plate (241), and when the sealing door (240) is closed, the light shielding plate (241) covers an opening of the storage box (200).

9. The apparatus of claim 2, wherein: the wavelength of the multi-wavelength LED light source (260) is at least two of 250-260nm, 290-320 nm, 365nm, 460-480nm, 530-540nm, 620nm, 660-720nm and 750-820 nm.

10. The apparatus of claim 1, wherein: the bottom of the placing box (200) is provided with a placing cavity (250), the multi-wavelength LED light source (260) is arranged in the placing cavity (250), and the placing cavity (250) is covered with a light-transmitting plate (220).

11. The apparatus of claim 1, wherein: shoot storehouse (100) and be equipped with and place mouth (110) and shoot chamber (120), the horizontal cross-sectional area who shoots chamber (120) increases in proper order along the direction of being close to and placing case (200), shoot chamber (120) with shoot storehouse (100) through connection.

12. The apparatus according to claim 11, wherein: and light absorption coatings are arranged on the side walls of the shooting cavity (120) close to the placing cavity (250).

13. The apparatus of claim 1, wherein: the side wall (230) of the placing box (200) is provided with an inward concave sliding groove (231).

14. The apparatus of claim 4, wherein: a placing groove (251) is arranged in the placing cavity (250), a placing strip (263) is arranged at the bottom of the LED light board (261), and the shape of the placing strip (263) is matched with that of the placing groove (251) so that the placing strip (263) is embedded into the placing groove (251).

15. The apparatus according to claim 14, wherein: the LED light board 261 is characterized in that a first interface placing groove (252) and a second interface placing groove (253) are further formed in the placing cavity (250), the LED light board 261 further comprises a first interface (265) and a second interface (266) which are arranged on the same side of the placing strip (263), and when the LED light board 261 is placed in the placing cavity (250), the first interface (265) and the second interface (266) are respectively embedded into the first interface placing groove (252) and the second interface placing groove (253).

16. The apparatus of claim 1, wherein: the horizontal cross section of the shooting cavity (120) is circular or rectangular.

17. The apparatus according to claim 16, wherein: the vertical axis of the shooting cavity (120) is collinear with the vertical axis of the placing cavity (250).

18. The apparatus of claim 17, wherein: the horizontal cross-sectional area of the shooting cavity (120) at the maximum horizontal cross-sectional area is larger than that of the placing cavity (250).

19. The apparatus according to claim 13, wherein: and the side wall (230) and the inner wall of the sliding groove (231) are provided with light absorption coatings.

20. The apparatus according to claim 14, wherein: the number of the placing grooves (251) is two, the placing grooves are communicated with each other, and the connecting position of the two placing grooves (251) is the center of the placing grooves (251).

21. The apparatus of claim 20, wherein: the number of the placing grooves (251) is at least three, at least two crossed placing grooves (251) exist in the at least three placing grooves (251), and the connecting position is the center of the placing grooves (251).

22. The apparatus of claim 4, wherein: the LED light board (261) is provided with a notch (264), and the notch (264) is semicircular or crescent.

23. The apparatus of claim 1, wherein: the edge of fixed module (320) covers place mouthful (110), it is equipped with fixed slot (111) to place mouthful (110) edge, fixed module (320) and the one side edge of placing mouthful (110) contact are equipped with fixed arch (321), the shape of fixed arch (321) and the shape looks adaptation of fixed slot (111) make fixed arch (321) imbed fixed slot (111).

24. The apparatus of claim 23, wherein: the fixing groove (111) is arranged around the placing opening (110) and is connected end to end.

25. The apparatus of claim 1, wherein: the areas, covered by the edges of the fixed modules (320), of the placing openings (110) are provided with light absorption coatings.