CN217133461U

CN217133461U - Multichannel LED (light-emitting diode) micro-fluorescence lighting device

Info

Publication number: CN217133461U
Application number: CN202220850513.1U
Authority: CN
Inventors: 陶成龙; 黄克军; 苏成康
Original assignee: Guangzhou Haokang Biotechnology Co ltd
Current assignee: Guangzhou Haokang Biotechnology Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-08-05
Anticipated expiration: 2032-04-13

Abstract

The present disclosure provides a multichannel LED microscopic fluorescence lighting device, comprising: the fluorescent lamp comprises a shell, wherein a fluorescent channel base which horizontally reciprocates along the long edge direction of the device is arranged on the lower bottom surface of the shell; the light through hole is formed in the lower bottom surface of the shell; the fluorescent lighting systems are provided with N groups and fixed on the fluorescent channel base, wherein N is more than or equal to 1, and when N is more than or equal to 2, the adjacent fluorescent lighting systems are horizontally arranged side by side along the long edge direction of the device; the shifting sliding block is arranged on a vertical wall surface close to the long edge direction of the shell and connected with the fluorescence channel base through a connecting sheet, and the shifting sliding block is shifted horizontally along the long edge direction of the device to complete the pushing of the fluorescence channel base. The design adopts the cold light source LED, has the advantages of long service life, small heat, instant use after opening, continuously adjustable brightness and the like, makes up the defects of mercury lamp light sources, and is more and more widely applied in the field of microscopes. The adjustment is flexible, and different fluorescence channels can be switched for microscopic observation.

Description

Multichannel LED (light-emitting diode) micro-fluorescence lighting device

Technical Field

The disclosure relates to the technical field of micro-illumination, in particular to a multi-channel LED micro-fluorescence illuminating device.

Background

When light is irradiated to a certain substance, a phenomenon in which the substance excites light having a longer wavelength than the wavelength of the irradiated light is called a fluorescence phenomenon, in which the irradiated light is called excitation light and the excitation light is called fluorescence. The fluorescence microscope is a microscope that observes by irradiating an object to be observed with light of a certain wavelength as a light source and exciting fluorescence by using such a principle. The fluorescence microscope is suitable for microscopic observation and research of tissue culture, cell isolated culture, plankton, environmental protection, food detection, fluid sediments and the like in the fields of biology, medicine and the like.

Currently, high-pressure mercury lamps, xenon lamps or metal halide lamps are commonly used as light sources for fluorescence microscopes, wherein mercury lamps are the most commonly used light sources for fluorescence microscopes. The mercury lamp emits a large amount of heat when in use, so that good heat dissipation conditions are needed, and the inverted lamp box is heavy; in order to prolong the service life of the mercury lamp, the mercury lamp cannot be immediately closed after being opened so as to avoid the damage to the electrode caused by incomplete mercury evaporation, and the mercury lamp can be closed after 15 minutes in general; after the mercury lamp is extinguished, the mercury lamp can be restarted after waiting for 30 minutes and being completely cooled, otherwise, the mercury lamp can explode; the mercury lamp emits light with high ultraviolet content, which has harm to human eyes, so an ultraviolet protective cover must be installed. Meanwhile, the stable working life of the traditional mercury lamp bulb is only 200-400 hours, and the cost is high. In general, a fluorescent lighting device of a fluorescent microscope is a sectional type and modular combination, and comprises a fluorescent light source, a kohler lighting light path, a fixing support, a fluorescent filter set and a mounting support.

SUMMERY OF THE UTILITY MODEL

The utility model provides a micro-fluorescence lighting device of multichannel LED, this disclosure adopts integrated structure design, embeds long-life LED light source, miniature battery of lens, fluorescence filter group, adopts reasonable slip mode to switch over the fluorescence illumination passageway. The fluorescent microscope light source solves the technical problems of poor energy efficiency, large volume and inconvenient maintenance of the fluorescent microscope light source recognized by the inventor.

The present disclosure provides a multichannel LED microscopic fluorescence lighting device, comprising: the fluorescent lamp comprises a shell, wherein a fluorescent channel base which horizontally reciprocates along the long edge direction of the device is arranged on the lower bottom surface of the shell;

the light through hole is formed in the lower bottom surface of the shell;

the fluorescent lighting systems are provided with N groups and fixed on the fluorescent channel base, wherein N is more than or equal to 1, and when N is more than or equal to 2, the adjacent fluorescent lighting systems are horizontally arranged side by side along the long edge direction of the device;

the shifting sliding block is arranged on a vertical wall surface close to the long edge direction of the shell and connected with the fluorescence channel base through a connecting sheet, and the shifting sliding block is shifted horizontally along the long edge direction of the device to complete the pushing of the fluorescence channel base.

In any of the above technical solutions, further, the method further includes: the guide rail is fixed on the bottom surface of the shell along the long edge direction of the device, and a clamping groove sliding block for clamping the guide rail is arranged on the lower portion of the fluorescent channel base.

In any of the above technical solutions, further, the fluorescence lighting system includes an excitation light source, a condenser lens assembly, and a fluorescence filtering assembly sequentially arranged from back to front along a short side direction, axes of the excitation light source, the condenser lens assembly, and the fluorescence filtering assembly are on the same short side axis, and the short side axis is parallel to the short side direction of the device.

In any of the above technical solutions, further, the excitation light source is disposed on a side close to the toggle slider, the excitation light source includes a fixing seat, an LED fixing device is disposed on a side of the fixing seat close to the condenser lens assembly, and an LED lamp bead is mounted on the LED fixing device.

In any of the above technical solutions, further, the light converging lens assembly includes a first lens and a second lens sequentially disposed along a short side direction of the device, and the second lens is located close to the fluorescence filtering assembly.

In any one of the above technical solutions, further, the fluorescence filtering component includes an excitation filter and a dichroic mirror sequentially arranged from back to front along the short side direction, the dichroic mirror is obliquely arranged, and the rear side of the dichroic mirror is fixed on the fluorescence channel base;

the emission filter is arranged on the fluorescent channel base, the emission filter is arranged below the dichroic mirror, and the central axis of the emission filter is perpendicular to and intersected with the axis of the short side.

In any of the above technical solutions, further, a top-view projection of a central point of the light-transmitting hole and a top-view projection of a central point of the emission filter form a straight line parallel to a straight line in a long side direction of the device.

In any of the above technical solutions, further, the light guide plate further includes an accessory fixing device, which is installed on an outer side surface of the lower bottom surface of the housing and is provided with a hole structure concentric with the light through hole.

In any of the above technical solutions, further, the slide plate further comprises a light shielding plate, and the light shielding plate is arranged on the inner side of the long-side vertical wall surface close to the toggle sliding block.

In any of the above technical solutions, further, the positioning device further comprises a micro-motion clamping group, wherein the micro-motion clamping group comprises a micro-motion switch and a positioning block matched with the micro-motion switch;

the locating block is fixed on the lower bottom surface of the shell, the micro switch is arranged on the rear side surface of the fluorescent lighting system, and the micro switch comprises a clamping block which is in clamping fit with the locating block.

The beneficial effect of this disclosure mainly lies in:

It is to be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily restrictive of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the disclosure. Together, the description and drawings serve to explain the principles of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a fluorescent tunnel mount configuration according to an embodiment of the disclosure;

FIG. 4 is a schematic structural diagram of a fluorescent tunnel mount assembly according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a microswitch according to an embodiment of the disclosure;

fig. 6 is a schematic structural view of a light-passing hole and an accessory fixing device according to an embodiment of the disclosure.

Icon:

the light source module comprises a shell 100, an accessory fixing device 101, a light through hole 102, an excitation light source 200, a fixing seat 201, an LED fixing device 202, LED lamp beads 203, a condenser lens assembly 300, a first lens 301, a second lens 302, a fluorescence filter assembly 400, a dichroic mirror 401, an emission filter 402, an excitation filter 403, a fluorescence channel base 500, a guide rail 501, a clamping groove sliding block 502, a sliding way 503, a light shielding plate 600, a micro switch 700, a body 701, a spring plate 702, a clamping block 703, a shifting sliding block 800, a connecting plate 801 and a positioning block 900.

Detailed Description

The technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present disclosure, but not all embodiments.

All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing and simplifying the present disclosure, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present disclosure, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

Example one

The utility model provides a LED fluorescent accessory device with a brand new structure, which comprises an accessory whole machine body, an internal fluorescent lighting system and an internal mechanical transmission mechanism. The fluorescent lighting system comprises a fluorescent filter component, a condenser lens component and an LED lamp bead. The fluorescent lighting system comprises at least 1 group and more, and a user can switch any one group of fluorescent channels to observe when using the fluorescent lighting system.

A multi-channel LED micro-fluorescent lighting device as shown in fig. 1-6, comprising: a housing 100, wherein a fluorescent channel base 500 horizontally reciprocating along the long side direction of the device is arranged on the lower bottom surface of the housing 100;

a light-passing hole 102 provided on the lower bottom surface of the case 100; the light through hole is a through hole structure and penetrates through the lower bottom surface and the upper top surface of the shell.

The fluorescent lighting systems are provided with N groups and fixed on the fluorescent channel base 500, wherein N is more than or equal to 1, and when N is more than or equal to 2, the adjacent fluorescent lighting systems are horizontally arranged side by side along the long edge direction of the device;

in this embodiment, the toggle slider switches the fluorescent lighting system to another, and the toggle slider and the guide rail form a linear sliding fluorescent lighting device. The method conforms to the custom of the client, reduces the operation fatigue and improves the working efficiency.

The slide block 800 is shifted, the vertical wall surface of the setting position close to the long side direction of the shell 100 is connected with the fluorescence channel base 500 through the connecting sheet 801, and the slide block 800 is shifted horizontally along the long side direction of the device to complete the pushing of the fluorescence channel base 500.

Further comprising: the guide rail 501 is fixed on the bottom surface of the housing 100 along the long side direction of the device, and the lower part of the fluorescent channel base 500 is provided with a slot slider 502 for clamping the guide rail 501.

And the mechanical transmission mechanism has the function that a user can switch any one group of fluorescent lighting systems by sliding the external toggle sliding block 800. The structure of the fluorescent lamp comprises a toggle slider 800, a microswitch 700, a fluorescent channel base 500 and a guide rail 501. The design of the sliding transmission structure of the structure is superior to the traditional method of the pull rod type switching fluorescent lighting system. The user is more comfortable to use, reduces tired sense, improves and switches efficiency. The slide block 800 is shifted to drive the fluorescent photo base, so that a user can slide to switch any group of fluorescent lighting systems.

Example two

The fluorescent lighting system in the embodiment is an improvement on the first embodiment, the technical content disclosed in the first embodiment is not described repeatedly, and the content disclosed in the first embodiment also belongs to the content disclosed in the present embodiment.

As shown in fig. 1 to 6, the fluorescent lighting system includes an excitation light source 200, a condenser lens assembly 300 and a fluorescent filter assembly 400 sequentially arranged from back to front along the short side direction, the axes of the excitation light source 200, the condenser lens assembly 300 and the fluorescent filter assembly 400 are on the same short side axis, and the short side axis is parallel to the short side direction of the device.

The excitation light source 200 is arranged on one side close to the poking slide block 800, the excitation light source 200 comprises a fixed seat 201, an LED fixing device 202 is arranged on one side, close to the condensing lens assembly 300, of the fixed seat 201, and an LED lamp bead 203 is arranged on the LED fixing device 202.

The LED fixing device adopts an integral design, so that the heat dissipation area is increased, and the integral volume of the internal structure is reduced. The LED lamp beads are used as lighting sources, and the double lenses of the optical system are combined and matched, so that the lighting intensity and the lighting uniformity are improved.

The condenser lens assembly 300 includes a first lens 301 and a second lens 302 sequentially arranged in the short side direction of the apparatus, and the second lens 302 is positioned adjacent to the fluorescence filter assembly 400.

And the condenser lens assembly is positioned behind the fluorescence filtering assembly and in front of the excitation light source and comprises a first lens and a second lens, the first lens is positioned in front of the LED light source, and the second lens is positioned in front of the first lens. The light-gathering lens component is used for gathering the light emitted by the LED excitation light source, so that the excitation light source reaches the light intensity required by exciting fluorescence.

The fluorescence filter assembly 400 includes an excitation filter 403 and a dichroic mirror 401, which are sequentially disposed from back to front along the short side direction, wherein the dichroic mirror 401 is disposed obliquely, and the rear side edge thereof is fixed on the fluorescence channel base 500;

and the fluorescent channel further comprises an emission filter 402, wherein the emission filter 402 is arranged on the fluorescent channel base 500, the emission filter 402 is arranged below the dichroic mirror 401, and the central axis of the emission filter 402 is vertical to and intersects with the axis of the short side.

The center point of the light-transmitting hole 102 is projected in a top view, and the straight line formed by the projection in the top view of the center of the emission filter 402 is parallel to the straight line in the long side direction of the device.

The fluorescence filtering component comprises an excitation filter, a dichroic mirror and an emission filter. The excitation filter component is positioned in front of the optical lens group, the dichroic mirror is obliquely arranged in front of the excitation filter, and the emission filter is arranged below the dichroic beam splitter. The fluorescent filtering component adopts an integral design, so that the cost is reduced.

EXAMPLE III

As shown in fig. 3 and 4, the accessory fixing device 101 is installed on the outer side of the lower bottom surface of the casing 100, and is provided with a hole structure concentric with the light passing hole 102.

The light shielding plate 600 is further included, and the light shielding plate 600 is arranged on the inner side of the long-edge vertical wall surface close to the toggle sliding block 800. The light shielding plate 600 is used for an interference internal fluorescent lighting system for preventing light leakage and external ambient light.

The micro-positioning device further comprises a micro-positioning clamping group, wherein the micro-positioning clamping group comprises a micro-switch 700 and a positioning block 900 matched with the micro-switch 700;

the positioning block 900 is fixed on the bottom surface of the housing 100, the micro switch 700 is disposed on the rear side surface of the fluorescent lighting system, and the micro switch 700 includes a position-locking block 703 for locking with the positioning block 900.

As shown in fig. 4, a slide 503 is formed on the fluorescent channel base 500 along the longitudinal direction, the micro switch 700 includes an upper body, a spring plate 702 is connected to the lower portion of the body 901, a retaining block 703 is disposed at the free end of the spring plate 702, the spring plate penetrates through the slide, and the retaining block passes through the slide to complete the matching with the positioning block.

When 3, this design has three screens point, screens piece preferred for cylinder or ball structure, the purpose with the locating piece cooperation, the upper surface design of locating piece is for arc recess or the spherical recess with screens piece complex.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

Claims

1. A multi-channel LED (light emitting diode) micro-fluorescence lighting device is characterized by comprising: the fluorescent lamp comprises a shell, wherein a fluorescent channel base which horizontally reciprocates along the long edge direction of the device is arranged on the lower bottom surface of the shell;

the light through hole is formed in the lower bottom surface of the shell;

the shifting slide block is arranged on a vertical wall surface close to the long edge direction of the shell and connected with the fluorescence channel base through a connecting sheet, and the shifting slide block is horizontally shifted along the long edge direction of the device to complete the pushing of the fluorescence channel base.

2. The multi-channel LED micro-fluorescent lighting device of claim 1, further comprising: the guide rail is fixed on the bottom surface of the shell along the long edge direction of the device, and a clamping groove sliding block for clamping the guide rail is arranged on the lower portion of the fluorescent channel base.

3. The multi-channel LED microscopic fluorescence lighting device according to claim 1, wherein the fluorescence lighting system comprises an excitation light source, a light-gathering lens component and a fluorescence filtering component which are sequentially arranged from back to front along a short side direction, the axes of the excitation light source, the light-gathering lens component and the fluorescence filtering component are on the same short side axis, and the short side axis is parallel to the short side direction of the device.

4. The multi-channel LED (light emitting diode) micro-fluorescence lighting device according to claim 3, wherein the excitation light source is arranged on one side close to the toggle slider, the excitation light source comprises a fixed seat, an LED fixing device is arranged on one side of the fixed seat close to the light condensing lens component, and an LED lamp bead is arranged on the LED fixing device.

5. The multi-channel LED micro-fluorescent lighting device according to claim 3, wherein the condenser lens assembly comprises a first lens and a second lens sequentially arranged along a short side direction of the device, and the second lens is positioned close to the fluorescent filter assembly.

6. The multi-channel LED microscopic fluorescence lighting device according to claim 3, wherein the fluorescence filtering component comprises an excitation filter and a dichroic mirror, which are sequentially arranged from back to front along the short side direction, the dichroic mirror is obliquely arranged, and the rear side edge of the dichroic mirror is fixed on the fluorescence channel base;

7. The multi-channel LED (light emitting diode) micro-fluorescence lighting device as claimed in claim 6, wherein a straight line formed by the top projection of the central point of the light through hole and the top projection of the central point of the emission filter is parallel to a straight line in the long side direction of the device.

8. The multi-channel LED micro-fluorescence lighting device according to claim 1, further comprising an accessory fixing device, which is installed on the outer side of the lower bottom surface of the housing and is provided with a hole structure concentric with the light through hole.

9. The multi-channel LED micro-fluorescence lighting device according to claim 1, further comprising a light shielding plate, wherein the light shielding plate is arranged on the inner side of the long-side vertical wall surface close to the toggle slider.

10. The multi-channel LED (light emitting diode) micro-fluorescence lighting device according to claim 1, further comprising a micro-motion clamping group, wherein the micro-motion clamping group comprises a micro-motion switch and a positioning block matched with the micro-motion switch;