Fluorescent lighting module

Abstract

The utility model provides a fluorescent lighting module which can provide various exciting lights with different colors and combinations of the exciting lights, is convenient and fast to replace exciting blocks and can penetrate through fluorescent lights with different colors, and the fluorescent lighting module comprises a shell, a pivot, a turntable, a plurality of exciting blocks and a fluorescent light source, comprising an excitation block shell, an excitation light filter, a dichroscope and a fluorescent light filter, the fluorescent light source is located on the side portion of the rotary disc and comprises a lens arranged on the shell, a plurality of light source dichroscopes and a plurality of LED lamps capable of emitting fluorescent light with different wavelengths; the lens and the plurality of light source dichroscopes are positioned on the same optical axis extending in the radial direction of the turntable; under the driving of the rotating disc, any excitation block can rotate to the excitation light filter in the excitation block, and the dichroscope is located at the position of the optical axis.

Description

Technical Field

[0001] The utility model relates to a fluorescence lighting module for a microscope. Background Art

[0002] CN2016105390686 discloses a multi-channel fluorescence illumination device that can provide multiple fluorescences of different wavelengths and colors, and can switch between different fluorescences quickly and conveniently. The multi-channel fluorescence illumination device includes a housing consisting of a base and a cover, a pivot fixed inside the housing, a turntable that rotates relative to the pivot with the pivot as an axis, multiple fluorescence modules uniformly distributed around the turntable, a dovetail seat, and an eyepiece seat; the fluorescence module includes a support, an excitation light generating unit, and a main light path, the excitation light generating unit includes a light source, a lens, and an excitation light filter; the main light path includes a dichroic mirror and a fluorescence filter; the dichroic mirror that reflects the excitation light and transmits the fluorescence is at 45 degrees to the optical axis of the main light path and the optical axis of the excitation light generated by the excitation light generating unit; the dichroic mirror of each fluorescence module has a different turning wavelength, so that the fluorescence wavelength transmitted by each fluorescence module is different; when the turntable is rotated, the main light path of the fluorescence module can be coaxial with the dovetail seat and the eyepiece seat.

[0003] A major problem with existing excitation blocks is that each fluorescence module is equipped with a light source, lens, excitation filter, dichroic mirror, and fluorescence filter. Therefore, the light source in each fluorescence module is matched to the excitation filter, dichroic mirror, and fluorescence filter within the module. Each fluorescence module can only emit fluorescence of a specific wavelength; in other words, it can only emit fluorescence of different wavelengths equal to the number of fluorescence modules. For example, if there are six fluorescence modules, each equipped with an LED lamp emitting excitation light at wavelengths of 405nm, 488nm, 559nm, 633nm, 647nm, and 745nm, it would be impossible to replace it with an excitation light lamp emitting 365nm. Replacing one of the six fluorescence modules with one capable of emitting 365nm excitation light is often impossible due to the numerous issues involved in disassembling the old fluorescence module, positioning the new module on the turntable, installing and debugging the lens, LED lamp, excitation filter, dichroic mirror, and fluorescence filter within the new module, and connecting the power supply to the LED lamp in the new module. Therefore, its applicability is poor and it is difficult to meet the differentiated needs of different customers.

[0004] Furthermore, different customers often have different excitation cubes. An excitation cube consists of an excitation cube housing, excitation filters, a dichroic mirror, and a fluorescence filter. The excitation filters in different excitation cubes transmit different colors of excitation light, and different excitation cubes are designed to work with different colors of excitation light. Existing LED fluorescence lighting systems cannot be quickly installed with different excitation cubes. Summary of the Invention

[0005] The utility model aims to provide a fluorescent lighting module which can provide a variety of excitation lights of different colors and combinations thereof, is convenient and quick to replace excitation blocks, and can transmit fluorescence of different colors.

[0006] The fluorescent lighting module of the present utility model comprises:

[0007] shell;

[0008] a pivot fixed inside the housing;

[0009] A turntable is arranged on the pivot so as to rotate relative to the pivot with the pivot as an axis;

[0010] There are multiple excitation blocks, each of which is pluggable and arranged around the circumference of the turntable, including an excitation block housing, an excitation light filter, a dichroic mirror, and a fluorescence filter; the excitation light filters in different excitation blocks can transmit excitation light of different colors;

[0011] The fluorescent light source is located on the side of the turntable and includes a lens arranged on the shell, multiple light source dichroic mirrors, and multiple LED lamps that can emit fluorescence of different wavelengths; the lens and multiple light source dichroic mirrors are located on the same optical axis extending in the radial direction of the turntable.

[0012] Driven by the turntable, any excitation block can be rotated to the position where the excitation light filter and the dichroic mirror in the excitation block are located on the optical axis; at least one LED lamp emits light, which is reflected and / or transmitted by the dichroic mirror of the light source and then passes through the lens along the optical axis to form parallel excitation light. The color of the excitation light is consistent with the color of the excitation light that can be transmitted by the excitation block located on the optical axis. The excitation light passes through the excitation light filter in the excitation block and is emitted after being reflected by the dichroic mirror.

[0013] In the above-mentioned fluorescent lighting module, the turntable is connected to the motor set on the shell to drive it to rotate, the LED lamp is electrically connected to the power supply module that supplies power to it, and the controller is connected to the motor and the power supply module to control the rotation of the motor and the luminous intensity of different LED lamps.

[0014] The above fluorescent lighting module, the controller and the power supply module are arranged on the PCB board, the shell is provided with an interface electrically connected to the PCB board, the buttons are arranged on the operation box, and the operation box is electrically connected to the PCB board through the interface.

[0015] Each button corresponds to an excitation block. When a button is pressed, the controller controls the motor to rotate, driving the turntable to rotate, so that the excitation block corresponding to the pressed button rotates to the optical axis. The controller controls the LED light to emit light, forming excitation light that can pass through the excitation block located on the optical axis.

[0016] In the fluorescent lighting module, the turntable and the fluorescent light source are enclosed in the housing. An entrance and exit for allowing an excitation block to enter and exit is opened on the housing opposite to the outer periphery of the turntable. The cover plate for covering the entrance and exit is detachably connected to the housing.

[0017] When a key is pressed for a long time, the controller controls the motor to rotate, driving the turntable to rotate, so that the excitation block corresponding to the key pressed for a long time rotates to a position opposite to the entrance and exit.

[0018] In the fluorescent lighting module, the cover is detachably connected to the housing by screws, or the cover is adsorbed on the housing by magnets.

[0019] The above-mentioned fluorescent lighting module has a structure in which the excitation block is pluggable and arranged on the turntable in the radial direction of the turntable: a cantilever spring is arranged on the turntable, the inner end of the cantilever spring close to the center of the turntable is fixed on the turntable, and the outer end of the cantilever spring away from the center of the turntable has a downward bending portion; a positioning platform is provided on the side of the excitation block shell, and the rear end surface of the positioning platform close to the center of the turntable is a positioning surface in contact with the thrust surface on the turntable, and the upper part of the positioning platform is an inclined surface, which includes a guide section with a gradually increasing height and a pressing section with a gradually decreasing height from the inside to the outside along the radial direction of the turntable; when the excitation block is pushed toward the inner side close to the center of the turntable along the radial direction of the turntable, under the downward elastic force of the cantilever spring, the bent portion of the cantilever spring slides from the guide section to the pressing section until the rear end surface of the positioning platform contacts the thrust surface, and the bent portion is pressed on the pressing section.

[0020] In the above-mentioned fluorescent lighting module, the LED lamps include a purple LED lamp, a blue LED lamp, a green LED lamp, and a red LED lamp that respectively emit purple light, blue light, green light, and red light. The light source dichroic mirror includes a light source dichroic mirror 3, a light source dichroic mirror 2, and a light source dichroic mirror 1. The purple light emitted by the purple LED lamp is reflected by the light source dichroic mirror 1 and then enters the lens. The blue light emitted by the blue LED lamp is reflected by the light source dichroic mirror 2 and then passes through the light source dichroic mirror 1 to enter the lens. The green light emitted by the green LED lamp is reflected by the light source dichroic mirror 3 and then passes through the light source dichroic mirror 2 and the light source dichroic mirror 1 to enter the lens. The red light emitted by the red LED lamp passes through the light source dichroic mirror 3, the light source dichroic mirror 2, and the light source dichroic mirror 1 to enter the lens.

[0021] In the fluorescent lighting module, the purple LED lamp, the blue LED lamp, and the green LED lamp are arranged on a heat sink block 1 located on one side of the optical axis, and the red LED lamp is arranged on a heat sink block 2 located on the optical axis; the top surfaces of the heat sink block 1 and the heat sink block 2 are connected to the PCB board, and the enclosure is fixed to the bottom surfaces of the heat sink block 1 and the heat sink block 2. The enclosure, the heat sink block 1, the heat sink block 2, the PCB board, and the lens support for the fixed lens form a sealed cover shell, and the LED lamp and the light source dichroic mirror are located in the sealed cover shell; the sealed cover shell is located in the outer shell.

[0022] In the above-mentioned fluorescent lighting module, a plurality of spaced heat sinks are arranged on the side surfaces of heat sink block 1 and heat sink block 2, and a cooling fan is arranged outside the sealed cover and between heat sink block 1 or heat sink block 2 and the inner wall of the shell. The air inlet of the cooling fan is communicated with the space between the heat sinks, and the air outlet of the cooling fan is opposite to the exhaust port opened on the shell; an air inlet is opened on the shell opposite to the end of heat sink block 1 away from the cooling fan. When the cooling fan is working, cooling air enters the interior of the shell through the air inlet, passes through the space between the heat sinks, passes through the cooling fan, and is discharged from the exhaust port.

[0023] In this patent, the light source dichroic mirror is a dichroic mirror belonging to the existing technology. Just to distinguish it from the component "dichroic mirror" in the excitation block, we call the component "dichroic mirror" in the fluorescent light source the light source dichroic mirror.

[0024] Beneficial effects of the utility model:

[0025] The present invention separates the fluorescent light source from the excitation block, removably placing the excitation block on a turntable, while the fluorescent light source and lens are mounted on a housing. By rotating the turntable, the desired excitation block can be positioned coaxially (on the optical axis) with the lens and multiple light source dichroic mirrors, making it quick and convenient. Each LED lamp can emit fluorescence of different wavelengths, and multiple LED lamps can emit fluorescence of multiple wavelengths and colors. Furthermore, any two or more of the multiple LED lamps can emit light together to form new colors of excitation light. Furthermore, the same LED lamp can vary its luminous intensity, resulting in a rich variety of mixed excitation light colors. Furthermore, each excitation block is removably connected to the turntable, allowing replacement of different excitation blocks as needed, ensuring that the color of the excitation light transmitted by the excitation block matches the different colors of excitation light generated by the mixture of one or more LED lamps. This greatly expands the scope of use of the fluorescent lighting module. Furthermore, the excitation blocks are universal; different customers may have excitation blocks that transmit different colors of excitation light. The fluorescent lighting module can easily accommodate different customers' excitation blocks, meeting their specific requirements.

[0026] For easier operation and control, each button corresponds to an excitation block. When a button is pressed, the turntable rotates, causing the excitation block corresponding to the pressed button to rotate onto the optical axis. Then, the controller controls the LED light to emit light, forming excitation light that can pass through the excitation block located on the optical axis.

[0027] To ensure cleanliness and prevent harmful fluorescence from radiating outward, the turntable and fluorescent light source are enclosed within the housing. To facilitate block replacement, a removable cover plate covers the block entrance and exit. Pressing a button for a long time rotates the corresponding block to the corresponding entrance, allowing for quick and accurate block replacement.

[0028] The cooperation between the positioning platform on the side of the excitation block housing and the cantilever spring can enable the excitation block to be positioned on the turntable quickly and accurately. The structure is simple, and the operation of inserting and removing the excitation block is very convenient.

[0029] Purple light, blue light, green light and red light can be combined arbitrarily, and combined in different proportions to form more colors of excitation light.

[0030] The sealed cover can prevent dust from entering, ensuring that the optical path is free from dust interference and keeping the light source dichroic mirror clean and hygienic.

[0031] An air inlet is provided on the shell body opposite to the end of the heat sink block 1 away from the heat sink fan. The air inlet of the heat sink fan is communicated with the gap between the heat sink fins. The air outlet of the heat sink fan is opposite to and communicated with the air outlet provided on the shell body. When the heat sink fan is working, cooling air enters the shell body through the air inlet, passes through the gap between the heat sink fins, passes through the heat sink fan, and is discharged from the air outlet, thereby effectively dissipating the heat of the heat sink block 1 and / or the heat sink block 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 、 2 It is the overall schematic diagram of the fluorescent lighting module.

[0033] Figure 3 This is a general schematic diagram of the fluorescent lighting module (without the cover, etc.).

[0034] Figure 4 This is a general schematic diagram of the fluorescent lighting module (minus the base plate, etc.).

[0035] Figure 5 This is the overall schematic diagram of the fluorescent lighting module (minus the base plate, enclosure, etc.).

[0036] Figure 6 This is a general schematic diagram of the fluorescent lighting module (minus the outer shell, etc.).

[0037] Figure 7 、 8 This is a schematic diagram of the connection relationship between the heat sink block and the LED lamp.

[0038] Figure 9 、 10 This is a schematic diagram of the connection relationship between the turntable, excitation block, etc.

[0039] Figure 11 It is a schematic diagram of the connection relationship between the cantilever spring, positioning table, etc.

[0040] Figure 12 、 13 This is a stereogram of the excitation block.

[0041] Figure 14 This is a schematic diagram of the connection between the operation box and the housing.

[0042] In the figure, the housing 1, the upper shell 11, the bottom plate 12, the cuboid 13, the cylinder 14, the inlet and outlet 141, the cover 142, the interface 15, the air inlet 18, the air outlet 19,

[0043] Pivot 2,

[0044] Rotating disk 3, spring complex 30, cantilever spring 31, bending portion 311, thrust surface 33,

[0045] Excitation block 4, excitation block housing 41, excitation light filter 42, dichroic mirror 43, fluorescence filter 44, positioning stage 45, pressing section 451, guide section 452, rear end face 453,

[0046] Fluorescent light source 5, lens 51, light source dichroic mirror 52, light source dichroic mirror 1 521, light source dichroic mirror 2 522, light source dichroic mirror 3 523, LED lamp 53, purple LED lamp 531, blue LED lamp 532, green LED lamp 533, red LED lamp 534, spotlight cover 538, lamp holder 539,

[0047] Sealed housing 6, heat sink 1 61, heat sink 2 62, heat sink 63, enclosure 64, PCB board 65, cooling fan 66,

[0048] Servo motor 7, synchronous belt 71, eyepiece seat 81, dovetail seat 82,

[0049] Operation box 9, selection key 91, brightness adjustment key 92, power key 93. DETAILED DESCRIPTION

[0050] The present technology will be further described below with reference to the accompanying drawings and specific implementations.

[0051] See also Figure 1 The outer shell 1 of the fluorescent lighting module shown is roughly a combination of a cuboid 13 and a cylinder 14.

[0052] It includes an upper shell 11 and a bottom plate 12 .

[0053] The pivot 2 is fixed inside the cylinder 14. The turntable 3 is coaxial with the cylinder 14 and is arranged on the pivot so as to rotate relative to the pivot with the pivot as the axis. The turntable 3 includes an upper plate and a lower plate that are fixedly connected.

[0054] There are eight excitation blocks 4, each pluggable and arranged around the circumference of the turntable, and including an excitation block housing 41, an excitation light filter 42, a dichroic mirror 43, a fluorescence filter 44, and a positioning stage 45. The excitation light filters in different excitation blocks can transmit different colors of excitation light.

[0055] The fluorescent light source 5 is located in the rectangular parallelepiped 13 on the side of the turntable, and includes a lens holder with a lens 51 arranged on the upper shell, three light source dichroic mirrors 52, and four LED lamps 53 that can emit fluorescence of different wavelengths; the lens and multiple light source dichroic mirrors are located on the same optical axis extending in the radial direction of the turntable.

[0056] LED lamp 53 includes a purple LED lamp 531, a blue LED lamp 532, a green LED lamp 533, and a red LED lamp 534, which respectively emit purple, blue, green, and red light. The purple light emitted by purple LED lamp 531 has a central wavelength of 365nm and a bandwidth of 50nm. The blue light emitted by blue LED lamp 532 has a central wavelength of 460nm and a bandwidth of 60nm. The green light emitted by green LED lamp 532 has a central wavelength of 550nm and a bandwidth of 60nm. The red light emitted by red LED lamp 534 has a central wavelength of 640nm and a bandwidth of 80nm. Any two or more LED lamps emitting light simultaneously can form a new color of excitation light. For example, if green LED lamp 533 and red LED lamp 534 emit light simultaneously, yellow excitation light is formed. If purple LED lamp 531, blue LED lamp 532, green LED lamp 533, and red LED lamp 534 emit light simultaneously, white excitation light is formed.

[0057] The light source dichroic mirror 52 includes a light source dichroic mirror three 523, a light source dichroic mirror two 522, and a light source dichroic mirror one 521. The purple light emitted by the purple LED lamp is reflected by the light source dichroic mirror one and then enters the lens. The blue light emitted by the blue LED lamp is reflected by the light source dichroic mirror two and then enters the lens through the light source dichroic mirror one. The green light emitted by the green LED lamp is reflected by the light source dichroic mirror three and then enters the lens through the light source dichroic mirror two and the light source dichroic mirror one. The red light emitted by the red LED lamp enters the lens through the light source dichroic mirror three, the light source dichroic mirror two, and the light source dichroic mirror one.

[0058] Purple LED lamp 531, blue LED lamp 532, and green LED lamp 533 are mounted on heat sink 1 61 located on one side of the optical axis, while red LED lamp 534 is mounted on heat sink 2 62 located on the optical axis. Each LED lamp 53 includes a lamp bead, a lamp holder 539, and a spotlight cover 538. The lamp bead is fixed to the lamp holder 539, which is directly connected to heat sink 1 or heat sink 2. The spotlight cover 538 is fixed to a lampshade frame fixedly connected to heat sink 1 or heat sink 2.

[0059] The top surfaces of heat sink block 1 61 and heat sink block 2 62 are connected to the PCB board, and the enclosure 64 is fixed to the bottom surfaces of heat sink block 1 and heat sink block 2. The enclosure 64, heat sink block 1 61, heat sink block 2 62, PCB board 65, and the lens support of the fixed lens 51 form a sealed cover 6, and the LED lamp and the light source dichroic mirror are located in the sealed cover; the sealed cover 6 is located in the outer shell 1.

[0060] An entrance 141 is provided on the cylindrical body 14, which is opposite to the outer periphery of the turntable, to allow one excitation block to enter and exit. A cover 142 is detachably connected to the cylindrical body 14. The cover 142 is detachably connected to the housing by screws, but can also be attached to the cylindrical body 14 by magnets.

[0061] The excitation block 4 is pluggable on the turntable in the radial direction of the turntable 3. Eight spring combinations 30 are fixed on the turntable along the circumference, and two cantilever springs 31 are on both sides of each spring combination. The two adjacent cantilever springs 31 in two adjacent spring combinations 30 cooperate with the positioning platforms 45 on both sides of the excitation block shell in an excitation block 4 to fix an excitation block 4. The inner end of the cantilever spring 31 close to the center of the turntable is fixed to the inner end of the spring combination, and the outer end of the cantilever spring 31 away from the center of the turntable has a downward bending portion 311; the rear end face 453 of the positioning platform 45 close to the center of the turntable is a positioning surface that contacts the thrust surface 33 on the turntable, and the upper part of the positioning platform is an inclined surface. From the inside to the outside along the radial direction of the turntable, the inclined surface includes a guide section 452 whose height gradually increases in the axial direction of the turntable and a clamping section 451 that gradually decreases. When the trigger block 4 is pushed radially along the turntable toward the inner side near the center of the turntable 3, under the downward elastic force of the cantilever spring 31, the bent portion 311 of the cantilever spring 31 slides from the guide section 452 to the pressing section 451 until the rear end surface 453 of the positioning platform contacts the thrust surface 33, and the bent portion 311 is pressed against the pressing section 451. When the trigger block 4 needs to be pulled out, the trigger block 4 is pulled radially outward along the turntable to overcome the downward elastic force of the cantilever spring 31, and the bent portion 311 gradually slides from the pressing section 451 to the guide section 452, so that the trigger block 4 can be quickly removed.

[0062] An eyepiece mount 81 is provided on the upper shell 11 for connecting an eyepiece. A dovetail mount 82 is provided on the bottom plate 12 for connecting to an objective lens, etc. The eyepiece mount 81 and the dovetail mount 82 are coaxial up and down.

[0063] A plurality of spaced heat sinks 63 are arranged on the sides of heat sink block 1 61 and heat sink block 2 62. Two heat sink fans 66 are respectively arranged outside the sealed cover 6 and between heat sink block 1 and the inner wall of the shell, and between heat sink block 2 and the inner wall of the shell. The air inlet of the heat sink fan is communicated with the gap between the heat sink fins, and the air outlet of the heat sink fan is opposite to the exhaust port 19 opened on the shell; an air inlet 18 is opened on the upper shell opposite to the end of the heat sink block 1 61 away from the heat sink fan. When the heat sink fan is working, the cooling air enters the interior of the shell through the air inlet 18, passes through the gap between the heat sink fins, passes through the heat sink fan, and is discharged from the exhaust port 19.

[0064] The PCB board 65 is located in the rectangular parallelepiped 13, the controller and power supply module are set on the PCB board 65, an interface 15 electrically connected to the PCB board is set on the upper shell, and different buttons are set on the operation box 9, which is electrically connected to the PCB board through the interface.

[0065] The turntable 3 is connected to a motor provided on the housing to drive the turntable 3 to rotate, the LED lamp is electrically connected to a power supply module to supply power to the turntable 3, and the controller is connected to the motor and the power supply module to control the rotation of the motor and the luminous intensity of different LED lamps.

[0066] A servo motor 7 is fixed to the upper shell 11 near the cylinder 14. The output shaft of the servo motor 7 is connected to the outer periphery of the lower plate of the turntable 3 through a synchronous belt 71 to form a belt drive. The PCB board 65 is electrically connected to the servo motor 7 through a driver.

[0067] Servo motor 7 operates, rotating disk 3, and any excitation block 4 can be rotated to the position where the excitation light filter and dichroic mirror in the excitation block are located on the optical axis. At least one LED light is illuminated, and after being reflected and / or transmitted by the dichroic mirror of the light source, it passes through the lens along the optical axis to form parallel excitation light. The color of the excitation light is consistent with the color of the excitation light that can be transmitted by the excitation block located on the optical axis. The excitation light passes through the excitation light filter 42 in the excitation block 4, is reflected by the dichroic mirror 43, and then exits through the dovetail mount 82. The fluorescence generated by the excitation light excites the observed object, passes through the dovetail mount 82, passes through the dichroic mirror 43, and then exits through the eyepiece mount 81.

[0068] The buttons mainly include 8 selection keys 91, 2 brightness adjustment keys 92, and 1 power button 93. Each selection key 91 corresponds to an excitation block 4. When a selection key is pressed for a short time, the motor drives the turntable to rotate, so that the excitation block corresponding to the pressed selection key rotates to the optical axis, and then controls the corresponding LED lamp to emit light, forming an excitation light that can pass through the excitation block located on the optical axis. When a selection key is pressed for a long time, the motor drives the turntable to rotate, so that the excitation block corresponding to the long-pressed selection key rotates to a position opposite to the entrance and exit. At this time, the cover can be removed to replace the excitation block. The brightness adjustment key 92 can adjust the brightness of the illuminated LED lamp.

[0069] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention is based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field fall within the protection scope of the present invention.

Claims

1. Fluorescent lighting module, characterized by: include: shell; a pivot fixed inside the housing; A turntable is arranged on the pivot so as to rotate relative to the pivot with the pivot as an axis; There are multiple excitation blocks, each of which is pluggable and arranged around the circumference of the turntable, including an excitation block housing, an excitation light filter, a dichroic mirror, and a fluorescence filter; the excitation light filters in different excitation blocks can transmit excitation light of different colors; A fluorescent light source is located on the side of the turntable and includes a lens provided on the housing, a plurality of light source dichroic mirrors, and a plurality of LED lamps capable of emitting fluorescent light of different wavelengths; The lens, a plurality of light source dichroic mirrors are located on the same optical axis extending in the radial direction of the rotating disk.

2. The fluorescent lighting module according to claim 1, wherein: The turntable is connected to a motor arranged on the shell to drive it to rotate, the LED lamp is electrically connected to a power supply module to supply power to it, and the controller is connected to the motor and the power supply module to control the rotation of the motor and the luminous intensity of different LED lamps.

3. The fluorescent lighting module according to claim 2, wherein: The controller and the power supply module are arranged on the PCB board, an interface electrically connected to the PCB board is arranged on the shell, and the buttons are arranged on the operation box, which is electrically connected to the PCB board through the interface.

4. The fluorescent lighting module according to claim 2, wherein: The turntable and the fluorescent light source are enclosed in the shell. An entrance and exit for allowing an excitation block to enter and exit is opened on the shell opposite to the outer periphery of the turntable. A cover plate for covering the entrance and exit is detachably connected to the shell.

5. The fluorescent lighting module according to claim 4, wherein: The cover is detachably connected to the housing via screws, or the cover is adsorbed on the housing via magnets.

6. The fluorescent lighting module according to claim 1, wherein: The structure of the excitation block being pluggable and arranged on the turntable in the radial direction of the turntable is as follows: a cantilever spring is arranged on the turntable, the inner end of the cantilever spring close to the center of the turntable is fixed on the turntable, and the outer end of the cantilever spring away from the center of the turntable has a downward bending portion; a positioning platform is provided on the side of the excitation block shell, and the rear end face of the positioning platform close to the center of the turntable is a positioning surface in contact with the thrust surface on the turntable, and the upper part of the positioning platform is an inclined surface, and the inclined surface includes a guide section with a gradually increasing height and a gradually decreasing pressing section along the radial direction of the turntable from the inside to the outside; when the excitation block is pushed toward the inner side close to the center of the turntable along the radial direction of the turntable, under the downward elastic force of the cantilever spring, the bent portion of the cantilever spring slides from the guide section to the pressing section until the rear end face of the positioning platform contacts the thrust surface, and the bent portion is pressed against the pressing section.

7. The fluorescent lighting module according to claim 1, wherein: The LED lamp includes a purple LED lamp, a blue LED lamp, a green LED lamp and a red LED lamp which respectively emit purple light, blue light, green light and red light. The light source dichroic mirror includes a light source dichroic mirror three, a light source dichroic mirror two and a light source dichroic mirror one. The purple light emitted by the purple LED lamp is reflected by the light source dichroic mirror one and then enters the lens. The blue light emitted by the blue LED lamp is reflected by the light source dichroic mirror two and then passes through the light source dichroic mirror one to enter the lens. The green light emitted by the green LED lamp is reflected by the light source dichroic mirror three and then passes through the light source dichroic mirror two and the light source dichroic mirror one to enter the lens. The red light emitted by the red LED lamp passes through the light source dichroic mirror three, the light source dichroic mirror two and the light source dichroic mirror one to enter the lens.

8. The fluorescent lighting module according to claim 7, wherein: The purple LED lamp, the blue LED lamp and the green LED lamp are arranged on the heat sink block 1 located on one side of the optical axis, and the red LED lamp is arranged on the heat sink block 2 located on the optical axis; the top surfaces of the heat sink block 1 and the heat sink block 2 are connected to the PCB board, and the enclosure is fixed to the bottom surfaces of the heat sink block 1 and the heat sink block 2. The enclosure, the heat sink block 1, the heat sink block 2, the PCB board, and the lens support for the fixed lens form a sealed cover shell, and the LED lamp and the light source dichroic mirror are located in the sealed cover shell; the sealed cover shell is located in the outer shell.

9. The fluorescent lighting module according to claim 8, wherein: A plurality of spaced heat sinks are arranged on the sides of the heat sink block 1 and the heat sink block 2, and a heat sink fan is arranged outside the sealed cover and between the heat sink block 1 or the heat sink block 2 and the inner wall of the shell. The air inlet of the heat sink fan is communicated with the gap between the heat sink fins, and the air outlet of the heat sink fan is opposite to the exhaust port opened on the shell; an air inlet is opened on the shell opposite to the end of the heat sink block 1 away from the heat sink fan. When the heat sink fan is working, cooling air enters the interior of the shell through the air inlet, passes through the gap between the heat sink fins, passes through the heat sink fan, and is discharged from the exhaust port.

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