CN212840778U - Lighting system - Google Patents

Abstract

The utility model relates to the field of lighting technology, especially, relate to an illumination system, including luminescence unit, light source base plate, leaded light stick, the fixed subassembly of leaded light stick and optics projection mechanism: the light-emitting unit is arranged on the light source substrate and can emit light rays with one or more wave bands, the light-emitting unit is arranged in contact with the incident end of the light guide rod, and the light source substrate is fixedly connected with the light guide rod fixing component; the light guide rod fixing component is provided with an installation through cavity for accommodating the light guide rod, the incident end and the emergent end of the light guide rod can be exposed at two ports of the installation through cavity, and no stress is generated between the lateral edge of the light guide rod and the light guide rod fixing component; the optical projection mechanism comprises a convergent lens, a focusing lens and a lens connecting piece, wherein the lens connecting piece and the light guide rod fixing assembly are fixedly connected with an incident surface of the convergent lens and the focusing lens of the convergent lens and face to an emergent end of the light guide rod, and the incident surface of at least one focusing lens is used for receiving light rays emitted from the emergent surface of the convergent lens. The utility model discloses effectively reduce the operation complexity.

Description

Lighting system

Technical Field

The utility model relates to the field of lighting technology, especially, relate to a lighting system.

Background

Emergent light of the illumination system needs to meet certain conditions of light intensity, wave band and uniformity, an optical system is generally adopted to adjust light emitted by the light emitting unit, and particularly, the illumination system provided with the multiband light emitting unit needs to carry out optical coupling of various wave bands in a beam combination mode so as to obtain emergent light meeting the conditions. At present, a plurality of prisms or dichroic mirrors are generally adopted to form a plurality of groups of optical collimation systems to combine multiband light, but in the process of combining the light beams, the light axes of the light-emitting units of each waveband in the emergent direction are required to be consistent, the assembly and adjustment difficulty is high, and the cost is high. Therefore, it is desirable to provide an illumination system with simple beam combination and small adjustment difficulty, so as to reduce the production cost and the operation complexity.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lighting system, a serial communication port, including luminescence unit, light source base plate, leaded light stick, the fixed subassembly of leaded light stick and optics projection mechanism:

the light emitting unit is arranged on the light source substrate and can emit light rays with one or more wave bands, the light emitting unit is arranged in contact with the incident end of the light guide rod, and the light source substrate is fixedly connected with the light guide rod fixing component;

the light guide rod fixing component is provided with an installation through cavity capable of containing the light guide rod, the incident end and the emergent end of the light guide rod can be exposed at two ports of the installation through cavity, and no stress is generated between the lateral edge of the light guide rod and the light guide rod fixing component;

the optical projection mechanism comprises a convergent lens, at least one focusing lens and a lens connecting piece, the lens connecting piece is fixedly connected with the light guide rod fixing assembly, the incident surface of the convergent lens faces the emergent end of the light guide rod, and the incident surface of the at least one focusing lens can receive light rays emitted by the emergent surface of the convergent lens.

The utility model provides an illumination system has following technological effect: the utility model discloses utilize the leaded light stick and be equipped with the optics projection mechanism of a set of battery of lens to realize setting of a wave band or multiband light, the light regulation mode is simple and the installation and debugging degree of difficulty is little, effectively reduces operation complexity and manufacturing cost.

Drawings

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

FIG. 1: the embodiment of the utility model provides a section view of lighting system;

FIG. 2: the embodiment of the utility model provides a lighting system's three-dimensional structure chart;

FIG. 3: the embodiment of the utility model provides an explosion diagram of some subassemblies of lighting system;

FIG. 4: the embodiment of the utility model provides a section view of some subassemblies of lighting system;

FIG. 5: the embodiment of the utility model provides a three-dimensional view of a light guide rod fixing base;

FIG. 6: the embodiment of the utility model provides a profile view of a light guide rod fixing base;

FIG. 7: an enlarged view of the boxed area in FIG. 5;

FIG. 8: the embodiment of the utility model provides a perspective view of a cover plate of a light guide rod;

FIG. 9: an embodiment of the present invention provides a cross-sectional view of another lighting system component;

FIG. 10: figure 9 is an exploded view of a lighting system component assembly;

FIG. 11: the embodiment of the utility model provides a perspective view of a light guide bar mounting piece;

FIG. 12: the embodiment of the utility model provides a perspective view of a light guide rod seat;

FIG. 13: the embodiment of the utility model provides a structural block diagram of a lighting system control device;

FIG. 14: the embodiment of the utility model provides a structure chart of each lens in the optical projection mechanism;

in the figure: 110-light-emitting unit, 120-light source substrate, 200-light guide rod, 310-installation through cavity, 320-light guide rod fixing base, 321-installation groove, 322-convergent lens connection surface, 323-first installation hole, 330-light guide rod cover plate, 331-second installation hole, 340-avoidance groove, 350-light guide rod installation part, 351-connection part, 352-positioning pin, 353-light guide rod sleeve, 354-clamping sheet, 355-convergent lens sink, 356-gap, 360-light guide rod seat, 361-positioning groove, 362-concentric positioning column, 363-sleeve through cavity, 364-first end surface, 365-second end surface, 366-installation window, 367-installation hole, 370-rod fastener, 380-avoidance sink, 410-convergent lens, 420-focusing lens, 430-convergent lens connecting plate, 431-convergent lens mounting through hole, 440-convergent lens pressing ring, 450-focusing lens connecting plate, 451-rib, 460-sliding connecting piece, 470-focusing lens pressing ring, 480-light-emitting lens, 500-focusing structure, 610-radiator, 620-fan, 700-box body, 710-front cover, 711-light-emitting interface, 720-side plate, 730-rear cover, 740-air inlet and 750-air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product, or device.

The embodiments are described below with reference to the drawings, which do not limit the scope of the invention described in the claims.

Referring to fig. 1 to 13, an embodiment of the present disclosure provides an illumination system, which includes a light emitting unit 110, a light source substrate 120, a light guiding rod 200, a light guiding rod fixing assembly, and an optical projection mechanism: the light emitting unit 110 is disposed on the light source substrate 120 and capable of emitting light in one or more wavelength bands, the light emitting unit 110 is disposed in contact with the incident end of the light guide rod 200, and the light source substrate 120 is fixedly connected to the light guide rod fixing assembly; the light guide rod fixing component is provided with an installation through cavity 310 capable of containing the light guide rod 200, the incident end and the emergent end of the light guide rod 200 can be exposed at two ports of the installation through cavity 310, and no stress is generated between the lateral edge of the light guide rod 200 and the light guide rod fixing component; the optical projection mechanism comprises a convergent lens 410, at least one focusing lens 420 and a lens connecting piece, wherein the lens connecting piece is fixedly connected with the light guide rod fixing component, the incident surface of the convergent lens 410 faces the emergent end of the light guide rod 200, and the incident surface of the at least one focusing lens 420 can receive light rays emitted by the emergent surface of the convergent lens 410.

Therefore, the utility model discloses utilize leaded light stick 200 and the optics that is equipped with a set of battery of lens to throw the mechanism and realized setting of a wave band or multiband light, the light regulation mode is simple and the installation and debugging degree of difficulty is little, effectively reduces operation complexity and manufacturing cost.

In the embodiment of the present disclosure, the light guide rod 200 has a prism and/or prism-terrace structure, and the installation through cavity 310 is disposed along the axial direction of the light guide rod 200.

In the disclosed embodiment, the converging lens 410 and the light guide rod are coaxially disposed.

In the embodiment of the present disclosure, the exit surface of the converging lens 410 faces the entrance surface of the at least one focusing lens 420.

In the embodiment of the present disclosure, the optical projection mechanism includes L focusing lenses 420, where L is a positive integer greater than or equal to 1, and the L focusing lenses 420 are configured to adjust light emitted from the converging lens 410 to preset light, where the preset light is light that meets the light emission requirement of the illumination system.

In some embodiments, the converging lens 410 is disposed coaxially with at least one focusing lens 420.

In some embodiments, L is equal to 1, i.e., the optical projection mechanism includes a focusing lens 420, and the light guide bar 200, the converging lens 410, and one of the focusing lenses 420 are coaxially disposed.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, the optical projection mechanism further includes an exit lens 480, and an incident surface of the exit lens 480 is configured to receive an emergent light of at least one focusing lens 420.

In some embodiments, the exit lens 480 is configured to emit light adjusted by all focusing lenses, and may be disposed at the exit interface 711 of the lighting system.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, at least a portion of the light guiding rod 200 is in a prism and/or prism-frustum structure.

In some embodiments, the light guide rod 200 may have a prism structure, and two bottom surfaces of the prism structure are an incident end surface and an exit end surface of the light guide rod 200.

In other embodiments, the light guide rod 200 may have a truncated pyramid structure, and the two bottom surfaces of the truncated pyramid structure are the incident end surface and the exit end surface of the light guide rod 200.

In other embodiments, the light guiding rod 200 may have N prism structures with different base areas, where N is a positive integer greater than or equal to 2, and the N prism structures are axially connected end to form the light guiding rod 200.

In other embodiments, the light guide rod 100 may have N frustum structures with different bottom surface areas, where N is a positive integer greater than or equal to 2, and the N frustum structures are axially connected end to form the light guide rod 200.

In other embodiments, the light directing stick 200 may have N1 prism structures with different base areas and N2 prism structures with different base areas, where N1 and N2 are positive integers greater than or equal to 1, and each prism structure and prism structure are connected end to end along its axis to form the light directing stick 200.

In practical applications, the illumination system may be applied to a microscope system, such as a fluorescence microscope system, and the emitted light of the light emitting unit structure is reflected multiple times by the prism side surface of the light guide rod 200, and the setting of the optical projection mechanism finally emits the emergent light with uniform intensity.

In some embodiments, referring to fig. 3 or fig. 10, the light guiding rod 200 may have a straight quadrangular prism structure.

In the embodiment of the present disclosure, the end surface of the incident end and/or the exit end of the light guide rod 200 is a frosted surface. In some embodiments, one end of the light guide rod 200 is a frosted surface and the other end is a polished surface. The light guide rod 100 may be a solid or hollow structure.

In the embodiment of the present disclosure, the material of the light guiding rod 200 may include, but is not limited to, glass or plastic, and in one embodiment, the light guiding rod 200 is made of quartz.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, when the light guide rod 200 is fixed in the installation through cavity 310, each edge of the exit end of the light guide rod 200 is not in contact with each edge of the port of the installation through cavity 310. Thus, no stress is generated between the light guide rod and the fixing component at the position during installation and use, and the possibility of the edge of the light guide rod 200 at the position being cracked due to the stress is reduced.

In some embodiments, referring to fig. 4 and 9, a clearance sinking platform 380 is disposed at the port of the installation through cavity 310 on the same side as the exit end of the light guide rod 200, and each edge of the exit end of the light guide rod 200 is located in the clearance sinking platform 380, so that each edge of the exit end of the light guide rod 200 is not in contact with each edge of the port of the installation through cavity 310.

In other embodiments, the side lengths of the ports of the installation through cavity 310 on the same side as the exit end of the light guide rod 200 are all greater than the corresponding side lengths of the exit end of the light guide rod 200, so that the edges of the exit end of the light guide rod 200 are not in contact with the sides of the ports of the installation through cavity 310.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, a converging lens connection surface 322 or a converging lens sinking stage 355 is disposed on an end surface of the light guide rod fixing assembly facing the converging lens 410, and a port of the installation through cavity 310 is located in a middle portion of the converging lens connection surface 322 or the converging lens sinking stage 355. Thus, the converging lens 410 may be attached to the converging lens attachment surface 322 or the converging lens stage 355 such that the light guide rod 200 is coaxial with the converging lens 410.

In some embodiments, the converging lens 410 is a single-sided convex lens, and the incident surface thereof is a plane surface and is attached to the converging lens connecting surface 322 or the bottom surface of the converging lens sinking platform 355.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, when the light guide rod 200 is accommodated in the installation through cavity 310, the end surface of the exit end of the light guide rod 200 is flush with or slightly lower than the converging lens connection surface 322; alternatively, the end surface of the exit end of the light guide rod 200 is flush with or slightly lower than the bottom surface of the convergent lens stage 355. Thus, the light guide rod fixing member protects the exit end of the light guide rod 200 from being broken due to stress between the light guide rod and the condensing lens 410.

Based on some or all of the above embodiments, please refer to fig. 1 and 3, in the embodiments of the present disclosure, the lens connector includes a convergent lens connection plate 430 and a convergent lens pressing ring 440, the convergent lens connection plate 430 is fixedly connected to the light guide rod fixing assembly, a convergent lens installation through hole 431 is formed on the convergent lens connection plate 430, and the convergent lens 410 is disposed in the convergent lens installation through hole 431; the condenser lens 410 can be fixed to the condenser lens attachment surface 322 or the condenser lens stage 355 by the condenser lens pressing ring 440.

In some embodiments, the converging lens clamping ring 440 clamps the converging lens 410 against the converging lens attachment surface 322 or the converging lens stage 355.

Based on some or all of the above embodiments, in the embodiments of the present disclosure, the lens connector includes at least one focusing lens connection plate 450, a focusing lens installation through hole is formed on the focusing lens connection plate 450, and the focusing lens 420 is disposed in the focusing lens installation through hole.

In some embodiments, the lens coupling further comprises at least one focus lens clamping ring 470, and the focus lens 420 can be clamped within the focus lens mounting through-hole by the focus lens clamping ring 470.

In some embodiments, a rib 451 is provided at the focus lens mounting through-hole such that the inner diameter of the focus lens mounting through-hole is smaller than the major diameter of the focus lens 420, and the incident surface of the focus lens 420 can be bridged on the rib 451.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, the collecting lens connecting plate 430 is slidably connected to at least one focusing lens connecting plate 450, and by adjusting the relative position between the collecting lens connecting plate 430 and the at least one focusing lens connecting plate 450, the axial distance between the collecting lens 410 and the at least one focusing lens 420 can be changed to adjust the emergent light direction and/or the emergent light spot size.

In one embodiment, referring to fig. 1, the lens connector further includes a sliding connector 460, and the convergent lens connector 430 and the at least one focus lens connector 450 are slidably connected through the sliding connector 460.

In one embodiment, the sliding connector 460 may be a slide rail including a slider and a guide rail, the slider is alternatively disposed on the converging lens connecting plate 430 and the at least one focus lens connecting plate 450, and the guide rail is disposed on the other, and the relative movement of the converging lens connecting plate 430 and the at least one focus lens connecting plate 450 is achieved by moving the slider on the guide rail.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, the optical projection mechanism further includes a focusing structure 500, the focusing structure 500 is connected to at least one focusing lens connecting plate 450, and the focusing structure 500 can drive the at least one focusing lens connecting plate 450 to move relative to the focusing lens connecting plate 430, so as to change an axial distance between the focusing lens 410 and the at least one focusing lens 420.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, the light guide rod fixing component is connected to the light source substrate 120 through a fixing connector.

Based on some or all of the above embodiments, in the embodiment of the disclosure, the end surface of the light guide rod fixing component facing the light emitting unit 110 and the light source substrate 120 are alternatively provided with a plurality of concentric positioning pillars 362, and the other is provided with a concentric positioning hole matching with the concentric positioning pillars 362. In this manner, the light emitting region of the light emitting unit 110 is aligned and/or concentrically disposed with the light guide rod 200.

Based on some or all of the above embodiments, in some embodiments, the light guide rod fixing assembly includes a light guide rod fixing base 320 and a light guide rod cover 330; the first connecting surface of the light guide rod fixing base 320 and/or the second connecting surface of the light guide rod cover plate 330 are/is provided with an installation groove 321 capable of placing the light guide rod 200, and after the first connecting surface and the second connecting surface are connected, the installation groove 321 forms an installation through cavity 310 capable of containing the light guide rod 200.

Further, in some embodiments, the first connection surface and the second connection surface are alternatively provided with the mounting groove 321, and after the first connection surface and the second connection surface are connected, the mounting groove 321 forms the mounting through cavity 310.

Further, in other embodiments, referring to fig. 3, the mounting recess 321 includes a first mounting recess and a second mounting recess, the first mounting recess is formed on the first connecting surface, and the second mounting recess is formed on the second connecting surface; after the first connection surface and the second connection surface are connected, the first mounting groove and the second mounting groove form the mounting through cavity 310.

Further, a clearance groove 340 is formed in the side wall of the installation through cavity 310 at a position corresponding to the lateral edge of the light guide rod 200, and when the light guide rod 200 is accommodated in the installation through cavity 310, the lateral edges of the light guide rod 200 are located in the clearance groove 340 and are not in contact with the side wall of the installation through cavity 310, so that no stress is generated between the lateral edges of the light guide rod 200 and the light guide rod fixing component. Thus, the possibility of the lateral edge of the light guide rod 200 being broken by stress during installation and use is reduced.

Further, when the first connection surface and the second connection surface are connected, a converging lens connection surface 322 is formed on one side of the light guide rod fixing base 320 and one side of the light guide rod cover plate 330; or, on the side facing the convergent lens 410, the light guide rod fixing base 320 is provided with a first sinking platform, the light guide rod cover plate 330 is provided with a second sinking platform, and when the first connecting surface and the second connecting surface are connected, the first sinking platform and the second sinking platform form a convergent lens sinking platform.

In other embodiments, referring to fig. 10-12, the light guide rod fixing assembly includes a light guide rod mounting member 350 and a light guide rod holder 360, wherein a connecting portion 351 and a light guide rod sleeve 353 are respectively disposed at two opposite ends of the light guide rod mounting member 350, and the installation through cavity 310 penetrates through the connecting portion 351 and the light guide rod sleeve 353; the light guide rod seat 360 is provided with a sleeve through cavity 363 into which the light guide rod sleeve 353 can be inserted, and after the light guide rod sleeve 353 is inserted into the sleeve through cavity 363, the connecting part 351 is arranged on the first end face 364 of the light guide rod seat 360. A second end surface 365 of the light guide rod base 360 opposite to the first end surface 364 is fixedly connected to the light source substrate 120.

Further, the light guide rod fixing component further comprises a light guide rod fastening member 370, and the light guide rod 200 can be fixed in the installation through cavity 310 by sleeving the light guide rod fastening member 370 on the outside of the light guide rod sleeve 353.

Further, referring to fig. 11, the light guide rod sleeve 353 includes a plurality of clamping sheets 354 disposed at intervals, a gap 356 is formed between adjacent clamping sheets 354, when the light guide rod 200 is fixed in the installation through cavity 310, the clamping sheets 354 contact with the side surface of the light guide rod 200, and the lateral edge of the light guide rod 200 is exposed in the gap 356, so that no stress is generated between the lateral edge of the light guide rod 200 and the light guide rod fixing component. Thus, the possibility of the lateral edge of the light guide rod 200 being broken by stress during installation and use is reduced.

Based on some or all of the above embodiments, in some embodiments, referring to fig. 1, the lighting system further includes a heat sink 610 and a fan 620, the light source substrate 120 is disposed on a heat absorbing end of the heat sink 610, the heat absorbing end of the heat sink 610 is further fixedly connected to the light guide rod fixing component, and the fan 620 is disposed adjacent to a heat dissipating end of the heat sink 610.

Further, in some embodiments, a light emitting unit mounting surface is disposed on a heat absorbing end of the heat sink 610 for mounting the light source substrate 120, and the light source substrate 120 is fixedly connected to the light emitting unit mounting surface.

Further, in some embodiments, the heat sink 610 may be an aluminum fin heat sink 610, a semiconductor heat sink 610, or a copper tube heat sink 610.

In some or all of the above embodiments, in other embodiments, the lighting system further includes a water-cooling heat sink for cooling the light emitting unit structure.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, the lighting system further includes a box body 700, the light emitting unit 110, the light source substrate 120, the light guide rod 200, the light guide rod fixing assembly, and the optical projection mechanism are disposed in the box body 700, the front cover 710 is provided with a light outlet interface 711 allowing light set by the optical projection mechanism to be emitted, and the emitted light of the optical projection mechanism can be irradiated to other structures through the light outlet interface 711.

Further, in some embodiments, at least one focusing lens 420 is disposed proximate to the front cover 710 of the housing 700. In other embodiments, the exit lens 480 of the optical projection mechanism is disposed proximate to the front cover 710 of the housing 700.

Further, in some embodiments, the light exit interface 711 is used to connect to a microscope socket or other optical connector to connect to a microscope system or other structure, such as a fluorescence microscope system.

Further, in some embodiments, the light outlet interface 711, the optical projection mechanism, the light guide rod 200, the light guide rod fixing component, the light emitting unit 110, the light source substrate 120, the heat sink 610, and the fan 620 are sequentially disposed from the front cover 710 to the rear cover 730 in the box body 700, an air inlet 740 and an air outlet 750 are disposed on the box body 700, a control circuit board is mounted on an inner wall of the box body 700, and the control circuit board is disposed close to the air outlet 750 and far away from the air inlet 740.

Based on some or all of the above embodiments, in the embodiment of the present disclosure, the light emitting unit 110 is an LED light source module, and includes one or more LED chips with light emitting bands.

In some embodiments, part or all of the LED chips may be coated with phosphor or provided with a phosphor patch.

Based on the above partial or all embodiments, in the embodiment of the present disclosure, the control device includes a constant voltage power supply module, at least one path of constant current control module, and a main controller module, an output end of the constant voltage power supply module is electrically connected to an input end of the constant current control module and the main controller module, respectively, and an output end of the constant current control module is electrically connected to an input end of the LED chip.

The constant voltage power supply module is used for providing stable voltage for the main controller module and the constant current control module; the constant current control module is used for converting the constant voltage output by the constant voltage power supply module into a constant current and transmitting the constant current to the LED chip.

Further, the main controller module is configured to send a switch signal and an analog voltage signal to the constant current control module, so that the constant current control module controls the LED chip to be turned on and off according to the switch signal, and performs stepless adjustment on the brightness of the LED chip according to the analog voltage signal.

The constant current control module can convert the constant voltage of the constant voltage power supply module into a current with a size corresponding to the analog voltage signal, and outputs the current to the LED chips on the same path so as to control the brightness of the LED chips.

The LED chip path comprises one or more LED chips.

In practical application, the main controller module can independently control the on/off and brightness of each path of LED chip through the constant current control module. The main controller module can light each path of LED chips simultaneously or in a time-sharing manner through the constant current control module, and can light the LED chips in a partition manner.

Furthermore, one path of constant current control module correspondingly controls one path of LED chips, and/or one path of constant current control module correspondingly controls multiple paths of LED chips.

In some embodiments, one constant current control module correspondingly controls one LED chip. In one embodiment, the control device includes M constant current control modules for correspondingly controlling M LED chips, where M is a positive integer greater than or equal to 1.

In some embodiments, one constant current control module correspondingly controls multiple LED chips. In one embodiment, the control device comprises an M-way constant current control module, wherein M is a positive integer greater than or equal to 1. Each constant current control module correspondingly controls multiple paths of LED chips, and the main controller module can simultaneously or time-divisionally light the corresponding multiple paths of LED chips through each constant current control module and can also light the corresponding multiple paths of LED chips in a subarea manner.

Furthermore, each path of constant-current control module can be switched by an electronic switch to be communicated with different lines in a time-sharing mode, one line can be provided with one path of LED chips, and/or one line can be simultaneously provided with multiple paths of LED chips.

In some embodiments, the control device comprises M constant current control modules, M being a positive integer greater than or equal to 1. Wherein, the connection mode of at least one path of constant current control module and the LED chip is as follows: one constant current control module correspondingly controls one LED chip; the connection mode of at least one path of constant current control module and the LED chip is as follows: and one constant current control module correspondingly controls the plurality of LED chips. Based on some or all of the above embodiments, in the embodiment of the present disclosure, the main controller module is provided with a brightness memory unit, configured to store a final analog voltage value of each path of the constant current control module before being turned off, and when one path of the LED chips is turned on, the main controller module controls a brightness value of the path of the LED chips according to the final analog voltage value.

Specifically, the main controller module reads the final analog voltage value, and converts the constant voltage of the constant voltage power supply module into a current of a magnitude corresponding to the final analog voltage value, so that the LED chip is turned on with a brightness value before turning off or power down.

Based on the foregoing part or all of the embodiments, in the embodiment of the present disclosure, the control device further includes a temperature monitoring circuit, configured to output a temperature detection signal according to the collected temperature of the LED lighting unit module, and the main controller module can control the rotation speed of the fan 620 according to the temperature detection signal, and/or the main controller module can further determine whether the temperature of the LED lighting unit module is greater than or equal to a power-off threshold according to the temperature detection signal, and if the determination result is yes, send a turn-off signal to the constant current control module to turn off the LED lighting unit module.

Specifically, the higher the temperature of the LED light emitting unit module is, the higher the rotation speed of the fan 620 is.

In some embodiments, the temperature detection signal may be a voltage or current signal, and the higher the temperature of the LED module is, the smaller the voltage or current signal is; the main controller module receives the voltage or current signal, and outputs a Pulse Width Modulation (PWM) signal for controlling the rotating speed of the fan 620 through internal operation processing.

In some embodiments, if the temperature of the LED light emitting unit module is greater than or equal to the power-off threshold, the main controller module turns off all the LED chips.

According to the illumination system, the light emitting area of the light emitting unit, the light guide rod, the converging lens and the at least one focusing lens are arranged, so that one waveband or multiband light emitted by the light emitting unit can be set to be emergent light with uniform intensity; the distance between at least one focusing lens and the converging lens can be adjusted through the focusing structure, so that the adjustment of the emergent light direction and/or the size of the emergent light spot is realized; in addition, the control device can independently control one path of LED chips or simultaneously control a plurality of paths of LED chips to work, steplessly adjust and memorize the brightness value of each path of LED chips, adjust the rotating speed of the fan according to the temperature of the structure of the light-emitting unit, and protect the fan from power failure; the lighting system is simple in structure and small in installation and adjustment difficulty, and can meet different illumination brightness requirements.

Example 1

Referring to fig. 1-8 and 13, the present embodiment provides a lighting system, which includes a box body 700, the box body 700 includes a front cover 710, a side cover 721, a top plate, a rear cover 730, and a bottom plate, and adjacent structures are fastened by screws. The casing 700 is provided with a fan 620, a heat sink 610, a light-emitting unit structure, a light-homogenizing mechanism, an optical projection mechanism and focusing mechanism 500, and a light-emitting interface 711 in sequence from back to front (the direction of the front cover 710 is the front, and the direction of the rear cover 730 is the rear), and a side cover 721 of the casing 700 is further provided with a control circuit board.

The light emitting unit structure comprises a light emitting unit 110 and a light source substrate 120, the light homogenizing mechanism comprises a light guide rod 200 and a light guide rod fixing component, the optical collimating structure comprises a convergent lens 410, a focusing lens 420 and a lens connecting piece, and the light guide rod 200, the convergent lens 410 and the focusing lens 420 are coaxially arranged. In this embodiment, the converging lens 410 is a single-sided convex lens, and the focusing lens 420 is a double-sided convex lens.

Further, referring to fig. 2, the two side covers 721 are provided with vents 750, the rear cover 730 is provided with air inlets 740, the fan 620 sucks in ambient air through the air inlets 740 and discharges the ambient air through the vents 750 during operation, the control circuit board is far away from the air inlets 740 and is arranged near the vents 750, so that the control circuit board is located on an air duct formed by air flowing, and the fan 620 can cool the control circuit board while improving the heat dissipation efficiency of the heat sink 610.

The heat dissipation end of the heat sink 610 faces the fan 620, the end face of the heat absorption end of the heat sink 610 is provided with a light emitting unit mounting surface, and the light source substrate 120 is mounted on the light emitting unit mounting surface and can be screwed, bonded or clamped. Thus, through the direct contact between the light emitting unit structure and the heat sink 610, the thermal resistance between the light emitting unit structure and the heat sink 610 can be reduced, and the rapid heat dissipation and cooling can be realized.

The light emitting unit 110 is fixedly connected to the light source substrate 120, in this embodiment, the light emitting unit 110 is an LED light emitting unit module, and includes LED chips with multiple light emitting bands, the LED chips are coated with fluorescent powder, and form a light emitting area, on which a cover plate is disposed. In this embodiment, the LED light emitting unit module has LED chips with four light emitting bands. The LED light-emitting unit module is provided with a plurality of paths of LED chips, and one path of LED chip at least comprises one LED chip.

The light guide rod 200 is a quartz rod having a straight quadrangular prism structure, two end surfaces of which are a frosted surface and a polished surface, respectively, an incident end is used for receiving light emitted from the light emitting unit 110, and an exit end is used for emitting the light to the converging lens 410.

The light guide rod fixing component comprises a light guide rod fixing base 320 and a light guide rod cover plate 330; the light guide rod fixing base 320 is provided with a first connecting surface, the light guide rod cover plate 330 is provided with a second connecting surface used for being buckled on the first connecting surface, the first connecting surface and the second connecting surface are provided with an installation groove 321 used for placing the light guide rod 200, two ends of the light guide rod fixing base 320 penetrate through the light guide rod cover plate 330, and the light guide rod 200 can be placed into the light guide rod fixing base from the top surface of the installation groove 321. After the second connection surface is fastened to the first connection surface, the installation recess 321 forms an installation through cavity 310 capable of accommodating the light guide rod 200, and the incident end of the light guide rod 200 may exceed the port of the installation through cavity 310.

Further, the light guide rod fixing base 320 and the light guide rod cover 330 are clamped or connected by a fixing connector. In one embodiment, the first mounting hole 323 is formed on the light guide rod fixing base 320, the second mounting hole 331 is formed on the light guide rod cover plate 330, and after the first connecting surface and the second connecting surface are engaged, the light guide rod fixing base 320 and the light guide rod cover plate 330 can be fixedly connected by providing the connecting member in the first mounting hole 323 and the second mounting hole 331.

Further, opposite ends of the light guide rod fixing base 320 are fixedly connected to the heat sink 610 and the lens connecting member, respectively. The light guide rod fixing base 320 is provided with a light emitting unit connecting surface on one side facing the light emitting unit structure, the light emitting unit connecting surface is arranged on the same side as the incident end of the light guide rod 200, the light emitting unit connecting surface is provided with a concentric positioning column 362, the light source substrate 120 is provided with a concentric positioning hole matched with the concentric positioning column 362, after the concentric positioning column 362 is matched with the concentric positioning hole, the incident end of the light guide rod 200 can be abutted against the cover plate of the light emitting region, and the light guide rod 200 is concentric with the light emitting region. In addition, the side of the light guide rod fixing base 320 is fixedly connected to the end surface of the heat sink 610.

Further, the side of the light guide rod fixing base 320 facing the condensing lens 410 (the side of the light guide rod 200 at the exit end) has a first planar structure, the side of the light guide rod cover 330 facing the condensing lens 410 has a second planar structure, when the first and second connection faces are fastened, the first and second planar structures form a condensing lens connection face 322, and the port of the installation through cavity 310 is located at the middle of the condensing lens connection face 322, so that the condensing lens 410 and the light guide rod 200 can be coaxially disposed. The converging lens attachment face 322 protrudes beyond the large face of the light guide rod mounting base 320 and the light guide rod cover plate 330 for attachment to the entrance face of the converging lens 410.

Further, the end surface of the exit end of the light guide rod 200 is flush with the collecting lens connection surface 322, or slightly lower than the collecting lens connection surface 322. The entrance surface of the condenser lens 410 abuts on the condenser lens connection surface 322 and then comes into contact with the end surface of the exit end of the light guide rod 200, or has a slight gap 356 with the end surface of the exit end of the light guide rod 200.

Further, the installation through cavity 310 has a straight quadrangular prism structure matched with the light guide rod 200, and the positions of the side walls of the installation through cavity 310, which correspond to the side edges of the light guide rod 200, are provided with clearance grooves 340, specifically, the clearance grooves are arranged at the positions of the side edges of the installation through cavity 310, and when the light guide rod 200 is arranged in the installation through cavity 310, the side edges of the installation through cavity are positioned at the clearance grooves 340 and are not in contact with the side walls, so as to avoid generating stress.

Further, the exit end of the light guide rod 200 mates with the port gap 356 of the installation through cavity 310. In one embodiment, the respective side lengths of the ports mounting through cavities 310 are greater than the respective side lengths of the corresponding light guide rods 200; in another embodiment, a clearance sink 380 is provided at the port to keep the side walls and edges of the port from contacting the edges of the exit end of the light bar 200.

The lens connector includes a convergence lens connection plate 430, a convergence lens pressing ring 440, a focus lens connection plate 450, a focus lens pressing ring 470, and a slide connector 460. The converging lens web 430 is fixedly attached to the side of the light guide rod fixing base 320 facing the converging lens 410. In the present embodiment, the convergent lens link plate 430 is a special-shaped plate, and in one embodiment, has a flat plate and a side plate bent along the flat plate, a convergent lens mounting through hole 431 is provided on the flat plate of the convergent lens link plate 430, the convergent lens 410 is disposed in the convergent lens mounting through hole 431, and a projecting direction of an exit surface of the convergent lens 410 coincides with a projecting direction of the side plate.

Further, a converging lens clamping ring 440 is used to secure the converging lens 410 to the converging lens attachment face 322. In this embodiment, the convergent lens pressing ring 440 is annular, and has an inner diameter smaller than the major diameter of the convergent lens 410, and can be screwed or clamped in the convergent lens mounting through hole 431, so that the convergent lens 410 abuts on the convergent lens connecting surface 322 to limit the movement of the convergent lens 410 in the axial direction thereof, and at this time, the convergent lens mounting through hole 431 can limit the movement of the convergent lens 410 in the radial direction, thereby realizing the fixed connection of the convergent lens 410 and the convergent lens connecting plate 430.

Further, a focusing lens connecting plate 450 is slidably connected to the focusing lens connecting plate 430 through a sliding connection piece 460, in this embodiment, the focusing lens connecting plate 450 is similar to the focusing lens connecting plate 430 in structure and has a flat plate portion and a side plate bent along the flat plate, a focusing lens mounting through hole is formed in the flat plate of the focusing lens connecting plate 450, the focusing lens 420 is disposed in the focusing lens mounting through hole, and the protruding direction of the exit surface of the focusing lens 420 is consistent with the extending direction of the side plate.

Further, a focus lens clamping ring 470 is used to fix the focus lens 420 in a focus lens mounting through hole, where a rib 451 is provided, so that the inner diameter of the focus lens mounting through hole is smaller than the major diameter of the focus lens 420. In this embodiment, the focus lens pressing ring 470 is annular, and has an inner diameter smaller than the major diameter of the focus lens 420, and can be screwed or clamped in the focus lens mounting through hole, so that the incident surface of the focus lens 420 is erected on the rib 451 to limit the movement of the focus lens 420 in the axial direction thereof, and at this time, the focus lens mounting through hole can limit the movement of the focus lens 420 in the radial direction, so as to realize the fixed connection between the focus lens 420 and the focus lens connecting plate 450.

Further, the focus lens attachment plate 450 can be embedded in a space formed by a side plate and a flat plate of the convergence lens attachment plate 430, which are slidably coupled by a slide coupling 460. The slide coupling 460 is a slide rail including a slider and a guide rail, which are matched, the guide rail being provided on a side plate at the bottom of the focus lens coupling plate 430, and the slider being provided on a side plate at the bottom of the focus lens coupling plate 450.

The focusing structure 500 is provided with a screw thread portion and a hand-held portion, the screw thread portion is screwed with the focusing lens connecting plate 450 after passing through a side plate at the top of the converging lens connecting plate 430, the hand-held portion is disposed outside the converging lens connecting plate 430, and a channel is further provided on the side plate at the top of the converging lens connecting plate 430, and the channel is disposed along the axial direction of the focusing lens 420. The user can hold the hand-held portion to make the threaded portion reciprocate in the groove channel, and then drive the focusing lens connecting plate 450 to move, so that the sliding member reciprocates in the sliding rail, the focusing lens 420 moves relative to the focusing lens 410 in the axial direction, and the axial distance between the focusing lens 420 and the focusing lens 410 is changed, so that the size of the emergent light spot is adjusted.

An outgoing light interface 711 is arranged in front of the focusing lens 420, outgoing light of the focusing lens 420 can pass through the outgoing light interface 711, and the outgoing light interface 711 is used for connecting a microscope card seat or other optical connectors.

In this embodiment, referring to fig. 13, the lighting system further includes a control device, the control device includes a main controller module, a constant voltage power supply module, and multiple paths of constant current control modules, an output end of the constant voltage power supply module is electrically connected to an input end of the constant current control module and the main controller module, respectively, so as to provide stable voltage for the main controller module and the constant current driving module. The output end of one constant current control module is electrically connected with the input end of one LED chip, and the constant current control module is used for converting the constant voltage output by the constant voltage power supply module into a constant current and transmitting the constant current to the LED chip.

Further, the main controller module is used for sending two paths of control signals, namely a switching signal and an analog voltage signal, to the constant current control module, so that the constant current control module controls the LED chip to be turned on and off according to the switching signal, and outputs output currents with different sizes according to the analog voltage signal, so as to perform stepless regulation on the brightness of the LED chip.

Specifically, the constant current control module comprises a constant current control chip, an enable pin is arranged on the constant current control chip, when the main controller module sends an enable signal, an electronic switch in the constant current control chip is closed, and the constant current control chip works to light the LED chip; when the main controller module sends a disable signal, an electronic switch in the constant current control chip is turned on, and the constant current control chip does not work so as to turn off the LED chip.

Specifically, the constant current control module is provided with a voltage pin, and the signal voltage on the voltage pin determines the output current of the constant current control module. When the analog voltage signal sent by the main controller module is increased, the output current of the constant current control module is increased, otherwise, the output current of the constant current control module is reduced, so that the brightness of the LED chip is adjusted in a stepless manner. Each path of constant current control module receives the control signal sent by the main controller module independently, so that each path of LED chip can be switched on and off independently and can be subjected to stepless dimming.

Further, controlling means still includes temperature monitoring circuit for temperature output temperature detected signal according to the LED luminescence unit module of gathering, temperature detected signal can be voltage signal, and the higher the temperature is voltage signal lower, and main control unit module detects this voltage signal, through inside operation processing, outputs PWM pulse width modulation signal, controls the rotational speed of fan 620, and the higher the temperature of LED luminescence unit module is, and the rotational speed of fan 620 is big more, and the fan can be by infinitely variable control.

Meanwhile, the main controller module can also judge whether the temperature of the LED light-emitting unit module is larger than or equal to a power-off threshold value according to the temperature detection signal, and if the judgment result is yes, the main controller module sends a closing signal to the constant-current control module so as to close the LED light-emitting unit module.

Because the utility model discloses a multichannel constant current control module control multichannel LED chip, and the LED chip on the module all is the same polarity, consequently every LED chip all the way can all be put out, stepless adjusting luminance by independent control. In addition, the current brightness value of each path of LED chip can be memorized; the rotating speed of the cooling fan is regulated and controlled in real time according to the real-time temperature of the LED light-emitting unit module, so that the aim of cooling as required is fulfilled.

Furthermore, the main controller module can light each path of LED chips simultaneously or in a time-sharing manner through the constant current control module, and can light the LED chips in a partition manner. One path of constant current control module correspondingly controls one path of LED chips, and/or one path of constant current control module correspondingly controls a plurality of paths of LED chips.

Example 2

Referring to fig. 9 to 13, the present embodiment provides an illumination system, the same parts as those in embodiment 1 are not repeated herein, and the differences between the illumination system of the present embodiment and embodiment 1 are now described as follows.

First, the light guide rod fixing component includes a light guide rod mounting member 350, a light guide rod seat 360 and a light guide rod fastener 370, the side section of the light guide rod mounting member 350 is T-shaped, the upper portion of the T-shaped is a connecting portion 351, the lower portion of the T-shaped is a light guide rod sleeve 353, the installation through cavity 310 penetrates through the connecting portion 351 and the light guide rod sleeve 353, the incident end of the light guide rod 200 is located on the light guide rod sleeve 353 side, the emergent end of the light guide rod 200 is located on the connecting portion 351 side, and the light guide rod fastener 370 can be sleeved outside the light guide rod sleeve 353 to fix the light guide rod 200 in the installation through. In one embodiment, the light guide rod fastener 370 is threaded on the outside of the light guide rod sleeve 353.

The light guide rod base 360 is provided with a sleeve through cavity 363 for inserting the light guide rod sleeve 353, the large diameter of the connecting part 351 is larger than that of the sleeve through cavity 363, after the light guide rod sleeve 353 is inserted into the sleeve through cavity 363, the connecting part 351 is arranged on a first end face 364 of the light guide rod base 360, and a second end face 365, opposite to the first end face 364, of the light guide rod base 360 is fixedly connected with the light source substrate 120.

Further, be equipped with locating pin 352 on connecting portion 351, be equipped with on the first terminal surface 364 of light guide rod seat 360 with locating pin 352 assorted constant head tank 361, when connecting portion 351 was arranged in on first terminal surface 364, through cooperating locating pin 352 and constant head tank 361, can fix the position of light guide rod sleeve 353 in sleeve logical chamber 363, restriction light guide rod installed part 350 and the relative movement between the light guide rod seat 360.

Further, the connecting portion 351 is provided with a condensing lens sinking stage 355 on the bottom surface of which the incident surface of the condensing lens 410 can be attached, and the port of the installation through-cavity 310 is provided in the middle of the condensing lens sinking stage 355 so that the light guide rod 200 is coaxial with the condensing lens 410. The end surface of the exit end of the light guide rod 200 is flush with or slightly lower than the bottom surface of the convergent lens landing 355, so that the convergent lens 410 is in contact with the end surface of the exit end of the light guide rod 200, or has a small gap 356 with the end surface of the exit end of the light guide rod 200.

Further, the exit end of the light guide rod 200 mates with the port gap 356 of the installation through cavity 310. In one embodiment, the respective side lengths of the ports mounting through cavities 310 are greater than the respective side lengths of the corresponding light guide rods 200; in another embodiment, a clearance sink 380 is provided at the port; so that the side wall and edges of the port avoid contact with the edges of the exit end of the light guide rod 200.

Further, the light guide rod sleeve 353 comprises four clamping sheets 354 arranged at intervals, a gap 356 is formed between every two adjacent clamping sheets 354, when the light guide rod 200 is fixed in the installation through cavity 310, the four clamping sheets 354 are respectively in contact with four side faces of the light guide rod 200, and four side edges of the light guide rod 200 are exposed in the gap 356.

A light emitting unit connection surface is arranged on the second end surface 365 of the light guide rod seat 360, a concentric positioning column 362 is arranged on the light emitting unit connection surface, a concentric positioning hole matched with the concentric positioning column 362 is arranged on the light source substrate 120, after the concentric positioning column 362 is matched with the concentric positioning hole, the incident end of the light guide rod 200 can be abutted against the cover plate of the light emitting region, and the light guide rod 200 is concentric with the light emitting region of the LED light emitting unit module.

The focusing lens 410 and the light guide rod mount 350 are fixed on the light guide rod base 360 by a focusing lens clamping ring 440, and the focusing lens clamping ring 440 can be connected with the first end face side of the light guide rod base 360 in a matching way, and can be clamped or screwed.

In one embodiment, the converging lens clamping ring 440 is internally threaded, the first end surface side of the light guide rod holder 360 is externally threaded, the converging lens 410 is placed in the converging lens sinking stage 355, the converging lens clamping ring 440 is threadably engaged with the first end surface side of the light guide rod holder 360, the converging lens 410 is secured and the connecting portion 351 of the light guide rod holder 350 is pressed against the first end surface 364 of the light guide rod holder 360 to limit the relative movement of the converging lens 410 and the connecting portion 351 and to limit the relative movement between the light guide rod holder 360 and the light guide rod holder 350. The converging lens clamping ring 440 may be snapped or mounted in the converging lens mounting through hole 431 of the converging lens connection plate 430.

The second end 365 of the light guide rod holder 360 is connected to the heat sink 610 or the light source substrate 120 through a fixed connector, such as a screw. In one embodiment, at least one mounting window 366 is formed on a side surface of the light guide rod seat 360, and a mounting hole 367 is formed on a frame of a side of the mounting window 366 facing the heat sink 610, for providing a fixing connector for connecting the heat sink 610 or the light source substrate 120.

Further, in one embodiment, the connecting portion 351 of the light guide rod mounting member 350 is fixedly connected with the condensing lens connecting plate 430 to achieve the fixing of the light guide rod fixing assembly. In another embodiment, the light guide rod fixing assembly further comprises a connecting block, the light guide rod installation member 350 and the light guide rod holder 360 are connected and disposed on the connecting block to bear the weight of the light guide rod installation member 350 and the light guide rod holder 360, and both ends of the connecting block are fixedly connected to the converging lens connecting plate 430 and the heat sink 610, respectively.

And when one path of LED chip is started, the main controller module controls the brightness value of the path of LED chip according to the final analog voltage value. In one embodiment, when a memory storage instruction is received, the main controller module stores the current final analog voltage value into the EEPROM, and when the LED lighting unit module is restarted after power failure, the main controller module reads the current final analog voltage value of each path of memory from the EEPROM to control the output current corresponding to the final analog voltage value to be turned on.

Example 3

The present embodiment provides an illumination system, and the similar points to those of the structure and the control device in embodiment 1 or embodiment 2 are not repeated herein, and the differences between the illumination system of the present embodiment and embodiments 1 and 2 are now described as follows.

Referring to fig. 14, fig. 14 shows a structural diagram of each lens in the optical projection mechanism provided in the present embodiment. As shown in the figure, the optical projection mechanism includes a converging lens 410, a focusing lens 420, an exit lens 480 and a lens connector, an exit interface 711 is disposed in front of the exit lens 480, and an exit surface of the exit lens 480 is aligned with the exit interface 711, so that the exit light of the exit lens 480 can pass through the exit interface 711.

Further, the condensing lens 410, the focusing lens 420, and the exit lens 480 are coaxially disposed.

Further, the lens connector includes an outgoing lens connection board (not shown), and the outgoing lens 480 is disposed in the outgoing lens mounting through hole of the outgoing lens connection board.

In one embodiment, the exit lens 480 is fixedly disposed in the housing 700, the exit lens 480 is fixed near the front cover by an exit lens connection board, and the focusing lens 420 is moved to change the axial distance from the focusing lens 410 and the exit lens 480.

In another embodiment, the lens connector further includes an exit lens sliding connector (not shown), through which the exit lens 480 can move back and forth in the axial direction with respect to the focusing lens and/or the focusing lens to change the axial distance between the focusing lens and the converging lens, thereby adjusting and adjusting the light.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

All of the features described in the present application (including the features described in the different embodiments) may be combined arbitrarily and combined as appropriate to form a new technical solution within the scope of the present application.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (23)

1. An illumination system comprising a light emitting unit (110), a light source substrate (120), a light guide rod (200), a light guide rod fixing member, and an optical projection mechanism:

the light emitting unit (110) is arranged on the light source substrate (120) and can emit light rays with one or more wave bands, the light emitting unit (110) is arranged in contact with the incident end of the light guide rod (200), and the light source substrate (120) is fixedly connected with the light guide rod fixing component;

the light guide rod fixing component is provided with an installation through cavity (310) capable of containing the light guide rod (200), the incident end and the emergent end of the light guide rod (200) can be exposed at two ports of the installation through cavity (310), and no stress is generated between the lateral edge of the light guide rod (200) and the light guide rod fixing component;

the optical projection mechanism comprises a convergent lens (410), at least one focusing lens (420) and a lens connecting piece, wherein the lens connecting piece is fixedly connected with the light guide rod fixing component, the incident surface of the convergent lens (410) faces the emergent end of the light guide rod (200), and the incident surface of the at least one focusing lens (420) can receive light rays emitted from the emergent surface of the convergent lens (410).

2. The illumination system according to claim 1, characterized in that the light guide rod (200) has a prismatic and/or prismatic-table structure, the mounting through cavity (310) being arranged in axial direction of the light guide rod (200).

3. The illumination system of claim 1, wherein the optical projection mechanism further comprises an exit lens (480), and an entrance surface of the exit lens (480) is capable of receiving the exit light of the at least one focusing lens (420).

4. The illumination system of claim 1, wherein the end surface of the light guide rod fixing assembly facing the convergent lens (410) is provided with a convergent lens connection surface (322) or a convergent lens platform (355), and the port of the installation through cavity (310) is located at the middle of the convergent lens connection surface (322) or the convergent lens platform (355).

5. The illumination system according to claim 4, wherein the end surface of the exit end of the light guide rod (200) is flush with or slightly lower than the converging lens connection surface (322) when the light guide rod (200) is received in the installation through cavity (310); alternatively, the first and second electrodes may be,

the end surface of the emergent end of the light guide rod (200) is flush with or slightly lower than the bottom surface of the convergent lens sinking platform (355).

6. The illumination system of claim 4, wherein the lens connector comprises a converging lens connecting plate (430) and a converging lens pressing ring (440), the converging lens connecting plate (430) is fixedly connected with the light guide rod fixing assembly, a converging lens mounting through hole (431) is formed in the converging lens connecting plate (430), and the converging lens (410) is arranged in the converging lens mounting through hole (431);

the convergent lens (410) can be fixed to the convergent lens connection surface (322) or convergent lens counter-holder (355) by the convergent lens clamping ring (440).

7. The lighting system of claim 1, wherein the lens connector comprises at least one focus lens connection plate (450), wherein a focus lens mounting through-hole is provided on the focus lens connection plate (450), and wherein the focus lens (420) is disposed in the focus lens mounting through-hole.

8. The illumination system of claim 7, wherein the converging lens attachment plate (430) is slidably coupled to the at least one focus lens attachment plate (450), and wherein an axial distance between the converging lens (410) and the focus lens (420) can be varied by adjusting a relative position of the converging lens attachment plate (430) and the at least one focus lens attachment plate (450).

9. The illumination system of claim 8, wherein the optical projection mechanism further comprises a focus adjustment structure (500), the focus adjustment structure (500) being coupled to at least one focus lens coupling plate (450), the focus adjustment structure (500) being capable of moving the at least one focus lens coupling plate (450) relative to the convergent lens coupling plate (430) to change an axial distance between the convergent lens (410) and the focus lens (420).

10. The illumination system of claim 1, wherein the end of the light guide rod fixing component facing the light emitting unit (110) and the light source substrate (120) are alternatively provided with a plurality of concentric positioning posts (362), and the other is provided with concentric positioning holes matched with the concentric positioning posts (362).

11. The lighting system according to claim 1, wherein, when the light-guiding rod (200) is fixed in the installation cavity (310), each edge of the exit end of the light-guiding rod (200) is not in contact with each edge of the port of the installation cavity (310).

12. The illumination system of any of claims 1-11, wherein the light guide rod retaining assembly comprises a light guide rod retaining base (320) and a light guide rod cover plate (330); the first connecting surface of leaded light stick fixed baseplate (320) and/or seted up on the second connecting surface of leaded light stick apron (330) and to place installation recess (321) of leaded light stick (200), first connecting surface with the back is connected to the second, installation recess (321) form and can hold the installation of leaded light stick (200) leads to chamber (310).

13. The illumination system according to claim 12, wherein a clearance groove (340) is formed on a side wall of the installation through cavity (310) at a position corresponding to a lateral edge of the light guide rod (200), and when the light guide rod (200) is accommodated in the installation through cavity (310), the lateral edges of the light guide rod (200) are not in contact with the side wall of the installation through cavity (310), so that no stress is generated between the lateral edges of the light guide rod (200) and the light guide rod fixing component.

14. The lighting system according to any one of claims 1 to 11, wherein the light guide rod fixing assembly comprises a light guide rod mounting member (350) and a light guide rod holder (360), opposite ends of the light guide rod mounting member (350) are respectively provided with a connecting portion (351) and a light guide rod sleeve (353), and the mounting through cavity (310) penetrates through the connecting portion (351) and the light guide rod sleeve (353);

the light guide rod seat (360) is provided with a sleeve through cavity (363) capable of being inserted into the light guide rod sleeve (353), and after the light guide rod sleeve (353) is inserted into the sleeve through cavity (363), the connecting part (351) is arranged on a first end face (364) of the light guide rod seat (360).

15. The lighting system of claim 14, wherein the light guide rod securing assembly further comprises a light guide rod fastener (370), the light guide rod (200) being securable in the installation through cavity (310) by fitting the light guide rod fastener (370) over the light guide rod sleeve (353).

16. The lighting system according to claim 14, wherein the light guide rod sleeve (353) comprises a plurality of clamping sheets (354) arranged at intervals, gaps (356) are formed between adjacent clamping sheets (354), when the light guide rod (200) is fixed in the installation through cavity (310), the clamping sheets (354) are in contact with the side faces of the light guide rod (200), and the side edges of the light guide rod (200) are exposed in the gaps (356).

17. The illumination system according to claim 1, wherein the end surface of the incident end and/or the exit end of the light guide rod (200) is a frosted surface.

18. The lighting system, as set forth in any one of claims 1-11,13, 15, and 16, further comprising a heat sink (610) and a fan (620), wherein the light source substrate (120) is disposed on a heat absorbing end of the heat sink (610), the heat absorbing end of the heat sink (610) is further fixedly connected to the light guide bar fixing assembly, and the fan (620) is disposed adjacent to a heat dissipating end of the heat sink (610).

19. The lighting system according to claim 1, further comprising a box body (700), wherein the light emitting unit (110), the light source substrate (120), the light guide rod (200), the light guide rod fixing component and the optical projection mechanism are arranged in the box body (700), and a light outlet interface (711) allowing the light rays set by the optical projection mechanism to be emitted is arranged on the front cover (710).

20. The lighting system according to claim 1, wherein the lighting unit (110) is a LED lighting unit module comprising LED chips of one or more lighting bands.

21. The lighting system of claim 20, further comprising a control device, wherein the control device comprises a constant voltage power supply module, at least one constant current control module, and a main controller module, an output terminal of the constant voltage power supply module is electrically connected to an input terminal of the constant current control module and the main controller module, respectively, and an output terminal of the constant current control module is electrically connected to an input terminal of the LED chip;

the main controller module is used for sending a switching signal and an analog voltage signal to the constant current control module so that the constant current control module controls the LED chip to be switched on and off according to the switching signal and carries out stepless regulation on the brightness of the LED chip according to the analog voltage signal.

22. The lighting system according to claim 21, wherein the main controller module is provided with a brightness memory unit for storing a final analog voltage value of each of the constant current control modules before being turned off, and when one of the LED chips is turned on, the main controller module controls a brightness value of the one of the LED chips according to the final analog voltage value.

23. The lighting system according to claim 21, wherein the control device further comprises a temperature monitoring circuit for outputting a temperature detection signal according to the collected temperature of the LED light-emitting unit module, the main controller module is capable of controlling the rotation speed of the fan (620) according to the temperature detection signal, and/or,

the main controller module can also judge whether the temperature of the LED light-emitting unit module is greater than or equal to a power-off threshold value according to the temperature detection signal, and if so, sends a closing signal to the constant-current control module to close the LED light-emitting unit module.

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