A light-heat performance adjustable fluorescent conversion type LD device and a use method

Abstract

The application discloses a kind of light-heat performance adjustable fluorescent conversion type LD device and use method, including heat dissipation base, at least two LD elements and corresponding focusing assembly with LD element are installed in heat dissipation base and are arranged obliquely, heat dissipation base is connected with adjustable telescopic cylinder, adjustable telescopic cylinder is equipped with fluorescent glass, the laser that LD element emits is shot into fluorescent glass after focusing assembly and is shot from fluorescent glass.The LD element is obliquely installed on heat dissipation base, focusing assembly is arranged on the upper portion of LD element, so that the emission light of LD element is effectively focused, fluorescent glass is installed on adjustable telescopic cylinder to realize focal length regulation, effectively reduce the heat transfer between excitation light source and fluorescent glass;LD element is obliquely arranged to facilitate improving heat dissipation effect, adjustable telescopic cylinder can adjust the excitation distance between fluorescent glass and LD element, further control optical performance and working temperature, simple structure, solve the problem of light loss caused by long-distance excitation light path.

Description

Technical Field

[0001] This invention relates to the field of laser lighting and display technology, and in particular to a photothermal performance adjustable fluorescence conversion LD device and its usage method. Background Technology

[0002] Solid-state lighting and display technology, with its advantages of high efficiency and environmental friendliness, has replaced traditional light sources and become the mainstream technology in the lighting and display market. Solid-state lighting and display devices composed of fluorescent conversion materials and blue light-emitting diodes / laser diodes (LEDs / LDs) are widely used in automotive headlights, indoor and outdoor lighting, projection displays, and laser TVs. Compared with LEDs, LDs, as point light sources, are considered the next-generation lighting source due to their good beam directionality and the absence of "efficiency drop-off" phenomenon. However, the high power density excitation of lasers generates a large amount of heat, causing the temperature of the light-emitting material to rise, eventually leading to thermal quenching. These problems severely restrict the application and development of laser lighting and display devices.

[0003] Compared to traditional packaging structures, remote excitation technology effectively reduces the heating effect of chip temperature rise on fluorescent materials, and has potential application value in improving lighting quality and luminous efficiency. Meanwhile, phosphor materials encapsulated in traditional silicone (resin) are prone to color inhomogeneity and surface carbonization after prolonged laser irradiation, leading to decreased device efficiency or even failure. Fluorescent glass stands out among many types of luminescent materials due to its excellent luminescent and physicochemical stability. Domestic and international scholars have conducted extensive research on the application of fluorescent glass in devices, achieving significant results. However, currently reported fluorescent glass-based laser devices suffer from complex optical path designs, severe luminescent efficiency losses, and cannot meet the needs of diverse application scenarios. Therefore, research on advanced packaging structures is crucial for the development of fluorescent glass-based laser devices.

[0004] The literature (Journal of Alloys and Compounds 941 (2023) 168986) uses a blue LD to remotely reflectively excite LuAG:Ce fluorescent glass. This encapsulation mode effectively reduces the surface operating temperature of the fluorescent glass, but its luminous efficiency drops sharply. Chinese patent CN114649734A discloses a high-heat-dissipation fluorescent reflective white LD and its preparation method, but this patent does not consider the secondary optical path design of the device. Chinese patent CN114836195A discloses a preparation method of fluorescent composite glass film and its application. This patent has refined the heat dissipation design of the luminescent material, but ignores the thermal deposition problem of the excitation light source. Chinese patent CN114920455A discloses a (BaSr)2SiO4:Eu LED. 2+The preparation and application of fluorescent glass and composite fluorescent glass are discussed in this patent. In this case, the fluorescent glass is directly bonded to the excitation light source, causing a rapid increase in the glass surface temperature, resulting in a luminous efficiency of only 124.75 lm / W. Chinese patent CN 116231442 A discloses a high-quality remote-excited fluorescent ceramic green LED device and its usage method. While this patent achieves color tone control, the large-volume focusing lens leads to severe light source loss and a complex heat dissipation structure. Chinese patent CN115360282A discloses a high-power remote-excited fluorescent ceramic white LED with heat dissipation. This patent achieves dual heat dissipation at both the excitation light source and the luminescent material; however, the uncontrollable luminous performance greatly limits its practical value.

[0005] In summary, direct bonding encapsulation easily leads to a rapid increase in material surface temperature, severely limiting the development of laser lighting and display devices. Reflective encapsulation effectively solves the problem of material temperature rise, but this method requires complex optical path design, easily causing problems such as luminescence attenuation and color inhomogeneity. The literature (Ceramics International 47 (2021) 30514–30522) adopts a remote transmission excitation mode, effectively reducing the operating temperature of the luminescent material; however, the long-distance excitation optical path causes significant light loss, deteriorating colorimetric parameters. Therefore, designing advanced encapsulation structures and employing appropriate excitation distances are crucial for obtaining ideal optical and thermal parameters. The encapsulation structure of remotely excitation devices has become a significant technological bottleneck in the development of fluorescent glass devices.

[0006] To address the limitations of existing packaging methods in simultaneously achieving both heat dissipation and luminescence performance in fluorescent glass, this invention proposes a fluorescent glass-based LD device with adjustable photothermal performance and its usage method. By bidirectionally controlling the focal length and excitation distance, the problem of rapid temperature rise in the LD device is solved, while simultaneously achieving effective control over both luminescence performance and operating temperature. Summary of the Invention

[0007] To address the shortcomings in the aforementioned background technology, this invention proposes a photo-thermal adjustable fluorescence conversion LD device and its usage method, which solves the problems of light loss caused by long-distance excitation optical paths and sudden temperature rise of LD elements during use in the prior art.

[0008] The technical solution of the present invention is implemented as follows: a light-to-thermal performance adjustable fluorescence conversion LD device includes a heat dissipation base, at least two LD elements and a focusing component corresponding to the LD elements are installed in the heat dissipation base at an angle, an adjustable telescopic cylinder is connected to the heat dissipation base, and a fluorescent glass is provided in the adjustable telescopic cylinder. The laser emitted by the LD element enters the fluorescent glass through the focusing component and then exits from the fluorescent glass.

[0009] Furthermore, the tilt angle of the LD element and focusing assembly relative to the bottom plane of the heat sink base is 24°~36°.

[0010] Furthermore, the focusing assembly includes a focusing lens, a focusing cap, and a focusing base. The focusing cap and the focusing base are threaded together to form a hollow mounting chamber. The focusing lens is disposed in the mounting chamber. The focusing cap and the focusing base are provided with light-transmitting holes corresponding to the focusing lens.

[0011] Furthermore, the heat dissipation base is provided with heat dissipation holes corresponding to the LD element and the focusing assembly. The upper part of the heat dissipation hole is inclined towards the central axis of the heat dissipation base, and the inclination angle is α, where α = 24°~36°. The bottom of the heat dissipation base is provided with a wire outlet hole communicating with the heat dissipation hole, and the upper part of the heat dissipation base is provided with a sealing boss.

[0012] Preferably, the distance between the bottom center of the heat dissipation hole and the central axis of the heat dissipation base is L, where L = 30mm~40mm.

[0013] Preferably, the fluorescent glass contains Lu3Al5O 12 :Ce 3+ Fluorescent glass containing fluorescent powder, wherein Lu3Al5O 12 :Ce 3+ The amount of fluorescent powder added is x, 5wt%≤x≤25wt%, the absorption peak of the fluorescent glass is 450nm~460nm, the emission peak is 520nm~530nm, and the area of ​​the fluorescent glass is S=(0.5~1.3)A, where A is the maximum light-emitting spot coverage area of ​​the LD device within the parameter control range.

[0014] Furthermore, the adjustable telescopic cylinder includes a fixed base and a slide rail sleeve. The fixed base is connected to the heat dissipation base, and the slide rail sleeve is slidably disposed in the slide rail channel of the fixed base. The slide rail sleeve is abutted against the fixed base by a stop bolt.

[0015] Furthermore, a sealing cap is detachably connected to the slide rail sleeve, and the fluorescent glass is sealed inside the slide rail sleeve by the sealing cap.

[0016] Furthermore, the slide rail sleeve has an internal light channel, a cooling groove that mates with fluorescent glass on its upper part, and a slide rail on its outer wall that slides in sync with a groove on the inner wall of the fixed base.

[0017] A method of using a photo-thermal adjustable fluorescence conversion LD device, comprising the photo-thermal adjustable fluorescence conversion LD device, and further comprising the following steps:

[0018] Step S1: Parameter Selection: The rated power of the LD element is P, P = 5W~30W; the distance between the bottom center of the heat dissipation hole on the heat sink and the central axis of the heat sink is L, L = 30mm~40mm; the tilt angle between the central axis of the heat dissipation hole and the central axis of the heat sink is α, α = 24°~36°; the focal length R is calculated from this, R = L / tanα; based on the actual application requirements for luminous efficiency, operating temperature, and brightness, the parameter adjustment range D and the excitation distance H between the LD element and the fluorescent glass are determined, where D = 6mm~8mm, H = RD~R+D; the maximum spot coverage area is calculated as A, A = π(Dtanα). 2 ;

[0019] Step S2: Based on the maximum spot coverage area A in step S1, select an area of ​​S and fluorescent powder Lu3Al5O. 12 :Ce 3+ Add fluorescent glass with a concentration of x, where S = 0.5A~1.3A and x = 5wt%~25wt%, install the fluorescent glass in the slide rail sleeve of the adjustable telescopic cylinder and seal it with an edge-sealing cap to obtain the first component;

[0020] Step S3: Install the first component from step S2 into the fixed base of the adjustable telescopic cylinder. The fixed base is equipped with a stop bolt for tightening the first component. The position of the first component is positioned by the stop bolt, thereby obtaining the second component.

[0021] Step S4: Install the LD element and focusing assembly sequentially into the heat dissipation holes of the heat sink base. The pins of the LD element extend from the wire outlet holes of the heat sink base and are connected to the power supply.

[0022] Step S5: Install the second component from step S3 onto the heat dissipation base from step S4 to obtain a light-to-heat adjustable fluorescence conversion LD device;

[0023] Step S6: Turn on the power to power on the photo-thermal adjustable fluorescent conversion LD device, and adjust the excitation distance between the fluorescent glass and the LD element according to the usage requirements. Adjust the working temperature, luminous efficiency, color rendering index and brightness of the photo-thermal adjustable fluorescent glass-based LD device, and thus obtain the working temperature range of 40℃~135℃, the luminous efficiency range of 60lm / W~230lm / W, and the color rendering index range of 45~67.

[0024] The beneficial effects of this invention are as follows: This invention tilts the excitation source LD element onto the heat dissipation base and sets a focusing component at the light emission point of the LD element, which enables effective focusing of the emitted light between the LD elements. The fluorescent glass is mounted on an adjustable telescopic cylinder, which realizes the focal length control of the laser emitted by the LD element and effectively reduces the heat transfer between the excitation source and the fluorescent glass. The tilted setting of the LD element facilitates improved heat dissipation. The adjustable telescopic cylinder can adjust the excitation distance between the fluorescent glass and the LD element, further controlling the optical performance and operating temperature of the device. The structure is simple and easy to assemble, solving the problem of light loss caused by long-distance excitation optical path and the problem of sudden temperature rise of LD element during use. It can also adapt to the application problems of fluorescence conversion LD devices in multiple demand scenarios.

[0025] 1. The tilted mounting of the LD element on the heat dissipation base of this invention not only solves the problem of sudden temperature rise in the LD device, but also realizes the focusing and focal length control among the light emitted by multiple LD elements, effectively avoiding the light loss caused by traditional focusing lenses, and greatly improving the light emission efficiency of this device.

[0026] 2. The focusing component of this invention corresponds to the LD element, which can solve the focusing problem of the emitted light of a single LD element. It has a compact structure, excellent heat dissipation performance, and realizes high-efficiency emission of fluorescent conversion LD devices with different output powers.

[0027] 3. This invention solves the application problem of fluorescence conversion LD devices under various scenario requirements. When high luminous efficiency is required in practical applications, the excitation distance H between the LD element and the fluorescent glass is adjusted to (RD), at which point the luminous efficiency is the maximum value within the control range. When low operating temperature is required in practical applications, the excitation distance H between the LD element and the fluorescent glass is adjusted to (R+D), at which point the operating temperature is the minimum value within the control range. When high luminous brightness is required in practical applications, the excitation distance H between the LD and the fluorescent glass is adjusted to the focal point R, at which point the luminous brightness is the strongest within the control range.

[0028] 4. This invention achieves effective control of various photothermal performance parameters of the fluorescence conversion LD device, with a wide control range and high precision, such as operating temperature, luminous efficiency, brightness, and color rendering index. The control range for operating temperature is 40°C. o C~135 o C, the luminous efficacy can be adjusted from 60 lm / W to 230 lm / W, and the color rendering index can be adjusted from 45 to 67.

[0029] 5. This invention proposes a mathematical relationship between the vertical distance L of the centerline axis of the LD element and the tilt angle α and the focal length of the light source. That is, numerically, the focal length of the emitted light of the LD element is R=L / tanα (in mm), which realizes the focal length adjustment of the LD device for different rated power of the LD element.

[0030] 6. This invention proposes a mathematical relationship between the tilt angle α between the central axis of the heat dissipation hole and the central axis of the heat dissipation base, the parameter adjustment range D, and the maximum light emission spot coverage area A in a fluorescence conversion type LD device, namely, numerically A=π(Dtanα). 2 (Unit: mm) 2 This facilitates precise control of the light spot emitted by the LD device.

[0031] 7. This invention proposes the numerical values ​​and their relationships among the maximum light-emitting spot coverage area A, the fluorescent glass area S, and the concentration of fluorescent powder added in the LD device. Specifically, the fluorescent glass area S = (0.5A~1.3A) mm. 2 To reduce the manufacturing cost of fluorescent glass while ensuring compatible light spot area; that is, in terms of the relationship, the concentration of fluorescent powder increases with the increase of fluorescent glass area and decreases with the decrease of fluorescent glass area, ensuring that the fluorescent glass maintains high quantum efficiency and excellent thermal stability. Attached Figure Description

[0032] To more clearly illustrate the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the present invention.

[0034] Figure 2 This is a schematic diagram of the optical path of the present invention.

[0035] Figure 3 This is a top view of the heat sink base.

[0036] Figure 4 This is a schematic diagram of the heat sink base.

[0037] Figure 5 This is a schematic diagram of the focusing component.

[0038] Figure 6 This is a schematic diagram of the fixed base structure.

[0039] Figure 7 This is a schematic diagram of the slide rail sleeve.

[0040] Figure 8 This is a schematic diagram of the edge-sealing and pressing structure.

[0041] Figure 9 This is a graph showing the temperature adjustment changes of the LD device in Example 9.

[0042] Figure 10 This is a graph showing the changes in the luminous efficiency of the LD device in Example 9.

[0043] In the diagram: 1. Edge-sealing cap, 101. Encapsulation through hole, 102. Encapsulation groove, 103. Light outlet, 2. Fluorescent glass, 3. Encapsulation bolt, 4. Slide rail sleeve, 401. Encapsulation threaded hole, 402. Slide rail, 403. Cooling groove, 404. Light channel, 5. Fixing base, 501. Fixing through hole, 502. Stop threaded hole, 503. Slide rail channel, 504. Slide groove, 6. Stop bolt, 7. Focusing assembly, 701. Focusing cap, 702. Focusing lens, 703. Focusing mount, 8. Heat dissipation base, 801. Fixing threaded hole, 802. Cable outlet, 803. Heat dissipation hole, 804. Sealing boss, 9. LD element, 10. Fixing bolt. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] like Figure 1 and Figure 2As shown in Embodiment 1, an adjustable photothermal fluorescence conversion LD device includes a heat dissipation base 8. At least two LD elements 9 and a focusing component 7 corresponding to the LD elements 9 are installed in the heat dissipation base 8 at an angle. The LD elements 9 are laser light sources, and the number of LD elements 9 is 2 to 6. The focusing component 7 corresponds to the LD elements 9, and both the LD elements 9 and the focusing component 7 are inclined. An adjustable telescopic cylinder is connected to the heat dissipation base 8. A fluorescent glass 2 is provided inside the adjustable telescopic cylinder. The distance between the fluorescent glass 2 and the LD elements 9 on the heat dissipation base 8 can be adjusted by the adjustable telescopic cylinder. The laser emitted by the LD element 9 enters the fluorescent glass 2 through the focusing component 7 and exits from the fluorescent glass 2, realizing the fluorescence conversion of the LD element 9. The excitation source LD element 9 is tilted and mounted on the heat dissipation base 8. A focusing component 7 is set at the light output port of the LD element 9. The focusing component 7 can focus the light from a single LD element 9. The LD element 9 and the focusing component 7 work together to effectively focus the emitted light from multiple LD elements 9. The fluorescent glass 2 is mounted on an adjustable telescopic cylinder to achieve focal length control of the laser emitted by the LD element 9, effectively reducing heat transfer between the excitation source and the fluorescent glass 2. The tilted setting of the LD element 9 facilitates heat dissipation. The adjustable telescopic cylinder can adjust the excitation distance between the fluorescent glass 2 and the LD element 9, further controlling the optical performance and operating temperature of the device. The structure is simple and easy to assemble. It solves the problems of light loss caused by long-distance excitation optical paths and sudden temperature rise of LDs. It can also adapt to the application of fluorescence conversion LD devices in various demand scenarios.

[0046] In this embodiment, the tilt angle between the LD element 9 and the focusing assembly 7 and the bottom plane of the heat dissipation base 8 is 24°~36°. With the LD element 9 tilted, the laser emitted from the LD element 9 will pass through the focusing assembly 7 and enter the fluorescent glass 2 at an angle, exiting from the fluorescent glass 2. This effectively avoids the light loss caused by traditional focusing lenses and greatly improves the light emission efficiency of the LD device. The focusing assembly 7 includes a focusing lens 702, a focusing cap 701, and a focusing base 703. The focusing cap 701 is threadedly connected to the focusing base 703, forming a hollow mounting chamber inside. The focusing lens 702 is disposed within the mounting chamber and is a focusing collimating lens. The outer wall of the focusing lens 702 has external threads, which are threadedly connected to the internal threads inside the focusing cap 701, thereby fixing the focusing lens 702 within the mounting chamber and preventing the focusing lens 702 from moving up and down during use, thus affecting the stability of the device. The focusing cap 701 and the focusing base 703 have light-transmitting holes corresponding to the focusing lens 702. The focusing assembly 7 solves the focusing problem of the emitted light of a single LD, enabling high-efficiency emission of LD elements 9 with different output powers. The LD element 9 is installed at the lower part of the focusing assembly 7. The laser emitted by the LD element 9 enters the focusing lens 702 through the light-transmitting hole on the focusing mount 703, and the laser emitted from the focusing lens 702 exits through the light-transmitting hole on the focusing cap 701.

[0047] like Figure 3 and Figure 4 As shown in Embodiment 2, an adjustable photothermal fluorescence conversion LD device is provided. The heat dissipation base 8 has heat dissipation holes 803 corresponding to the LD element 9 and focusing assembly 7. The upper part of the heat dissipation holes 803 is inclined towards the central axis of the heat dissipation base 8 at an angle α, where α = 24°~36°, preferably 30°. The bottom of the heat dissipation base 8 has a wire outlet hole 802 communicating with the heat dissipation holes 803. The diameter of the wire outlet hole 802 is smaller than the diameter of the heat dissipation holes 803. The number of heat dissipation holes 803 and wire outlet holes 802 is consistent with the number of LD elements 9. The upper part of the heat dissipation base 8 has a sealing boss 804. The design of the sealing boss 804 not only facilitates the positioning and installation between the adjustable telescopic cylinder and the heat dissipation base but also improves the sealing performance of the LD device, preventing light leakage. The heat dissipation hole 803 is used to install the LD element 9 and the focusing assembly 7. The bottom of the heat dissipation hole 803 is provided with a wire outlet hole 802 for fixing the LD element 9 and placing the lead wire. The design of the wire outlet hole 802 not only facilitates the installation of the lead wire of the LD element 9, but also ensures the axial positioning of the LD element 9.

[0048] In this embodiment, the distance between the bottom center of the heat dissipation hole 803 and the central axis of the heat dissipation base 8 is L, where L = 30mm~40mm, preferably 35mm. This distance facilitates heat dissipation for the LD element 9 and prevents a sudden temperature rise caused by mutual interference between the LD elements 9. The optical glass contains Lu3Al5O3. 12 :Ce 3+ Fluorescent glass 2 containing fluorescent powder, wherein Lu3Al5O 12 :Ce 3+ The amount of fluorescent powder added is x, where 5wt%≤x≤25wt%. The amount of fluorescent powder added is selected according to the LD element 9. The absorption peak of fluorescent glass 2 is 450nm~460nm, and the emission peak is 520nm~530nm. The area of ​​fluorescent glass 2 is S=0.5~1.3A, where A is the maximum light spot coverage area of ​​the LD device within the parameter control range. The light spot area is numerically A=π(Dtanα). 2 .

[0049] like Figures 1-4 As shown in Embodiment 3, an adjustable photothermal fluorescence conversion LD device includes a heat dissipation base 8. At least two LD elements 9 are installed at an angle within the heat dissipation base 8, and a focusing assembly 7 corresponding to each LD element 9 is also installed. The LD elements 9 are laser light sources, and the number of LD elements 9 can be selected from 2 to 6. The focusing assembly 7 corresponds to the LD elements 9, and both the LD elements 9 and the focusing assembly 7 are angled. An adjustable telescopic cylinder is connected to the heat dissipation base 8, and a fluorescent glass 2 is installed inside the adjustable telescopic cylinder. The distance between the fluorescent glass 2 and the LD elements 9 on the heat dissipation base 8 can be adjusted via the adjustable telescopic cylinder. The laser emitted from the LD elements 9 enters the fluorescent glass 2 through the focusing assembly 7 and exits from the fluorescent glass 2, thus realizing the fluorescence conversion of the LD elements 9. The design of the focusing assembly 7 and the angled LD elements 9 effectively focuses the emitted light from a single LD element 9 or multiple LD elements 9, and achieves focal length control, effectively reducing heat transfer between the excitation light source and the fluorescent glass 2, and improving the heat dissipation effect.

[0050] In this embodiment, the heat dissipation base 8 is provided with heat dissipation holes 803 corresponding to the LD element 9 and the focusing assembly 7. The upper part of the heat dissipation hole 803 is inclined towards the central axis of the heat dissipation base 8, and the inclination angle is α, where α = 24°~36°, preferably 30°. The bottom of the heat dissipation base 8 is provided with a wire outlet hole 802 communicating with the heat dissipation hole 803. The number of heat dissipation holes 803 and wire outlet holes 802 is consistent with the number of LD elements 9. The upper part of the heat dissipation base 8 has a sealing boss 804. The heat dissipation hole 803 is used to install the LD element 9 and the focusing assembly 7. The wire outlet hole 802 at the bottom of the heat dissipation hole 803 is used to fix the LD element 9 and place the lead wire. The design of the wire outlet hole 802 not only facilitates the installation of the lead wire of the LD element 9, but also ensures the axial positioning of the LD element 9.

[0051] In this embodiment, the distance between the bottom center of the heat dissipation hole 803 and the central axis of the heat dissipation base 8 is L, where L = 30mm~40mm, preferably 35mm. This distance facilitates heat dissipation for the LD element 9 and prevents a sudden temperature rise caused by mutual interference between the LD elements 9. The inner wall of the heat dissipation hole 803 and the upper surface of the wire outlet hole 802 are coated with thermally conductive silicone grease to reduce the contact thermal resistance between the light source and the heat dissipation base 8, effectively preventing heat deposition problems in the LD element 9. The optical glass contains Lu3Al5O3. 12 :Ce 3+ Fluorescent glass 2 containing fluorescent powder, wherein Lu3Al5O 12 :Ce 3+ The amount of fluorescent powder added is x, where 5wt%≤x≤25wt%. The amount of fluorescent powder added is selected according to the LD element 9. The absorption peak of fluorescent glass 2 is 450nm~460nm, and the emission peak is 520nm~530nm. The area of ​​fluorescent glass 2 is S=0.5~1.3A, where A is the maximum light spot coverage area of ​​the LD device within the parameter control range. The light spot area is numerically A=π(Dtanα). 2 .

[0052] like Figures 5-8 As shown in Embodiment 4, an adjustable photothermal performance fluorescent conversion LD device is described. The adjustable telescopic cylinder includes a fixed base 5 and a slide rail sleeve 4. The fixed base 5 is connected to a heat dissipation base 8. The slide rail sleeve 4 is slidably disposed within the slide rail channel 503 of the fixed base 5, and is secured to the fixed base 5 by a stop bolt 6. The cavities of the fixed base 5 and the slide rail sleeve 4 are coated with a highly reflective material to prevent diffuse reflection of light within the cavity during the light conversion process, thus avoiding light loss. By adjusting the excitation distance between the LD element 9 and the fluorescent glass 2 through the slide rail sleeve 4 disposed inside the fixed base 5, the optical performance and operating temperature of the device can be further controlled, solving the application problem of the LD device in various demand scenarios.

[0053] In this embodiment, a sealing cap 1 is detachably connected to the slide rail sleeve 4, and the fluorescent glass 2 is encapsulated inside the slide rail sleeve 4 by the sealing cap 1. The sealing cap 1 contacts the edge of the fluorescent glass 2, promoting the heat transfer effect of the fluorescent glass 2 and improving its heat dissipation rate. The slide rail sleeve 4 has a light channel 404 inside, and a cooling groove 403 that cooperates with the fluorescent glass 2 is provided on the upper part of the slide rail sleeve 4. A slide rail 402 is provided on the outer wall of the slide rail sleeve 4. The slide rail 402 is preferably a rectangular slide rail. The slide rail 402 is slidably engaged with a slide groove 504 provided on the inner wall of the fixed base 5. The track groove 504 is a rectangular track groove.

[0054] The specific encapsulation process is as follows: The top of the LD element 9 engages with the light-transmitting hole at the bottom of the focusing mount 703 in the focusing assembly 7. Based on the rated power of the selected LD element 9, the vertical distance and bevel angle between the heat dissipation hole 803 in the heat dissipation base 8 and the bottom axis are determined. Then, the LD element 9 and the focusing assembly 7 are placed inside the heat dissipation hole 803. The bottom of the fixing base 5 is connected to the sealing boss 804 in the heat dissipation base 8, and then the two are assembled using fixing bolts 10, fixing through holes 501, and fixing threaded holes 801. The slide rail 402 is positioned using the slide groove 504, and the slide rail sleeve 4 is installed inside the fixing base 5. The area of ​​the fluorescent glass 2 and the concentration of fluorescent powder are determined based on the maximum light spot coverage area. Then, the fluorescent glass 2 is installed in the cooling groove 403 at the top of the slide rail sleeve 4, and the edge-sealing cap 1 is installed at the top of the slide rail sleeve 4. The encapsulation bolts 3 are then connected sequentially to the encapsulation through holes 101 on the edge-sealing cap 1 and the encapsulation threaded holes 401 on the slide rail sleeve 4 to complete the encapsulation.

[0055] All other structures are the same as in Example 1, Example 2 or Example 3.

[0056] like Figures 1-8 As shown in Example 5, a method for using a photo-thermal performance adjustable fluorescence conversion LD device includes the photo-thermal performance adjustable fluorescence conversion LD device, and further includes the following steps:

[0057] Step S1: Parameter Selection: The rated power of the LD element 9 is P, P = 5W~30W. The distance between the bottom center of the heat dissipation hole 803 on the heat dissipation base 8 and the central axis of the heat dissipation base 8 is L, L = 30mm~40mm. The tilt angle between the central axis of the heat dissipation hole 803 and the central axis of the heat dissipation base 8 is α, α = 24°~36°. The focal length R is calculated as R = L / tanα. Based on the actual application requirements for luminous efficiency, operating temperature, and brightness, the parameter adjustment range D and the excitation distance H between the LD element 9 and the fluorescent glass 2 are determined, where D = 6mm~8mm and H = RD~R+D. The maximum spot coverage area is calculated as A, A = π(Dtanα). 2 As the rated power of the LD increases, the vertical distance L from the center of the bottom surface of the heat dissipation hole 803 increases, the tilt angle α of the central axis of the heat dissipation hole 803 decreases, and the focal length of the light increases.

[0058] Step S2: Based on the maximum spot coverage area A in step S1, select an area of ​​S and fluorescent powder Lu3Al5O. 12 :Ce 3+ Fluorescent glass 2 with a concentration of x is added, where S = 0.5A~1.3A and x = 5wt%~25wt%. The fluorescent glass 2 is installed in the slide rail sleeve 4 of the adjustable telescopic cylinder and sealed with the edge-sealing cap 1 to obtain the first component. When high luminous efficiency is required in actual applications, the excitation distance between the LD element 9 and the fluorescent glass 2 is reduced, the area of ​​the fluorescent glass 2 is reduced accordingly, and the concentration of fluorescent glass 2 is appropriately reduced. When low operating temperature is required in actual applications, the excitation distance between the LD element 9 and the fluorescent glass 2 is increased, the area of ​​the fluorescent glass 2 is increased accordingly, and the concentration of fluorescent glass 2 is appropriately increased. When high luminous brightness is required in actual applications, the excitation distance between the LD element 9 and the fluorescent glass 2 is located at the focal point of the light, the area of ​​the fluorescent glass 2 is moderate, and the concentration of fluorescent glass 2 is appropriate.

[0059] Step S3: Install the slide rail sleeve 4 of the first component into the fixed base 5 of the adjustable telescopic cylinder. The fixed base 5 is equipped with a stop bolt 6 for tightening the first component. The position of the first component is positioned by the stop bolt to obtain the second component. The stop bolt 6 can further restrict the movement of the first component and prevent the first component from falling out of the fixed base 5 during use. The tightness of the stop bolt 6 can be adjusted to control the sliding distance between the first component and the fixed base 5, thereby controlling the position of the fluorescent glass 2 on the first component.

[0060] Step S4: Install the LD element 9 and the focusing assembly 7 sequentially into the heat dissipation hole 803 of the heat dissipation base 8. The LD element 9 is installed on the bottom end of the focusing seat 703 on the focusing assembly 7. The pins of the LD element 9 extend from the wire outlet hole 802 of the heat dissipation base 8 and are connected to the power supply to obtain the third component. The inner wall of the heat dissipation hole 803 and the upper surface of the wire outlet hole 802 are coated with thermally conductive silicone grease to reduce the contact thermal resistance between the light source and the heat dissipation base 8 and effectively avoid the problem of heat deposition of the LD element 9.

[0061] Step S5: Install the second component fixing base 5 on the heat dissipation base 8 of the third component to obtain a light-to-heat adjustable fluorescence conversion LD device.

[0062] Step S6: Turn on the power to power on the adjustable photothermal fluorescent conversion LD device and bring it into normal operation. Adjust the excitation distance between the fluorescent glass 2 and the LD element 9 according to usage requirements. This can effectively control the device's operating temperature, luminous efficiency, color rendering index, and brightness. The operating temperature of this device is adjustable within a range of 40°C. o C~70 o C, the luminous efficiency is adjustable from 60 lm / W to 126 lm / W, the color rendering index is adjustable from 45 to 54, and the high brightness region of the LD device is within the range of 39 mm to 45 mm of excitation distance.

[0063] like Figures 1-8 As shown in Example 6, an adjustable light-to-heat performance fluorescent conversion LD device includes a heat dissipation base 8, fluorescent glass 2, focusing component 7, LD element 9, and fixed base 5. The LD element 9 and focusing component 7 are respectively installed in the heat dissipation holes 803 inside the heat dissipation base 8. The fixed base 5 is connected to the top of the heat dissipation base 8, and a slide rail sleeve 4 is provided inside the fixed base 5. The fluorescent glass is sealed to the top of the slide rail sleeve 4 by a sealing cap 1. The inner wall of the heat dissipation hole 803 and the upper surface of the wire outlet hole 802 are coated with thermally conductive silicone grease to reduce the contact thermal resistance between the light source and the heat dissipation base 8, effectively preventing heat deposition problems in the LD element 9. The cavity of the fixed base 5 and the slide rail sleeve 4 is coated with a highly reflective material to prevent diffuse reflection of light within the cavity during the light conversion process, which would cause light loss. The sealing cap 1 contacts the edge of the fluorescent glass 2, promoting the heat transfer effect of the fluorescent glass 2 and improving its heat dissipation rate. The design of the focusing components and the included angle enables effective focusing of the emitted light from a single LD element and multiple LD elements, and achieves focal length control. This effectively reduces heat transfer between the excitation source and the fluorescent glass, improves heat dissipation, and further controls the optical performance and operating temperature of the device by adjusting the excitation distance between the LD element and the fluorescent glass through the slide rail sleeve set inside the fixed base. This solves the application problem of LD devices in multiple demand scenarios.

[0064] In this embodiment, the upper surface of the heat sink base 8 is provided with four fixing threaded holes 801 that mate with the fixing through holes 501. The top of the heat sink base 8 is provided with a sealing boss 804. The interior of the heat sink base 8 is provided with heat dissipation holes 803 for mounting the LD element 9 and the focusing assembly 7. The bottom of the heat dissipation holes 803 is provided with wire outlet holes 802 for fixing the LD element 9 and placing the lead wire. The vertical distance between the heat dissipation holes 803 and the central axis of the heat sink base 8 is in the range of 30mm~40mm, preferably 35mm. The inclination angle between the central axis of the heat dissipation holes 803 and the central axis of the heat sink base 8 is in the range of 24°. o ~36 o Preferably 30 o The fixed through hole 501 and the fixed threaded hole 801 are connected by a fixing bolt 10, which facilitates disassembly and assembly. The number of heat dissipation holes 803 and wire outlet holes 802 is consistent with the number of LD elements 9. The design of the wire outlet hole 802 not only facilitates the installation of the LD element leads, but also ensures the axial positioning of the LD element 9.

[0065] In this embodiment, the focusing assembly 7 includes a focusing cap 701, a focusing lens 702, and a focusing mount 703. The focusing cap 701 and the focusing mount 703 are connected by threads. The focusing lens 702 is disposed between the focusing cap 701 and the focusing mount 703. The LD element 9 is mounted at the bottom of the focusing mount 703. The entire focusing assembly is compactly designed, effectively preventing light loss of the LD element. The number of LD elements 9 is 2 to 6, preferably 3, with a corresponding constant power of 10W to 30W. The LD elements 9 are any type of LD element with an emission peak in the 450nm to 455nm wavelength range.

[0066] In this embodiment, the bottom of the fixed base 5 mates with the sealing boss 804. The bottom surface of the fixed base 5 has four fixing through holes 501, and a slide rail channel 503 is located at the center of the fixed base 5. A slide groove 504 is provided inside the slide rail channel 503, and a stop threaded hole 502 is provided at the top of the slide groove 502 to mate with the stop bolt 6. The design of the sealing boss 804 not only facilitates the positioning and installation between the fixed base 5 and the heat dissipation base 8, but also improves the sealing performance of the LD device, preventing light leakage. The surface of the slide groove is coated with high-temperature resistant grease, facilitating the adjustment of the slide rail sleeve. The stop bolt effectively secures the slide rail sleeve, preventing derailment and other problems.

[0067] In this embodiment, the top of the slide rail sleeve 4 is provided with two encapsulation threaded holes 401, the upper surface of the slide rail sleeve 4 is provided with a cooling groove 403 for mounting the fluorescent glass 2, and a light channel 404 is provided at the center of the cooling groove 403. The outer surface of the slide rail sleeve 4 is provided with a slide rail 402 that mates with the slide groove 502. The excitation distance between the fluorescent glass 2 and the LD element 9 can be adjusted by the slide rail sleeve 4 and the stop bolt 6, based on the vertical distance between the bottom axis centers of the heat dissipation holes 803 and the tilt angle of the central axis of the heat dissipation holes 803.

[0068] In this embodiment, the edge-sealing cover 1 has two encapsulation through holes 101 on its surface that mate with the encapsulation threaded holes 401. The lower surface of the edge-sealing cover 1 has an encapsulation groove 102 for fixing the fluorescent glass 2, and a light-emitting port 103 is provided at the coaxial center of the encapsulation groove 102. The fluorescent glass 2 is made with Lu3Al5O2. 12 :Ce 3+ Fluorescent glass, among which x Lu3Al5O 12 :Ce 3+ The amount of fluorescent powder added is 5wt% ≤ x ≤25wt%, the absorption peak of fluorescent glass 2 is 450nm~460nm and the emission peak is 520nm~530nm. The area of ​​fluorescent glass 1 is S=0.5~1.3A, where A is the maximum light emission spot coverage area of ​​the LD device within the parameter control range.

[0069] The specific encapsulation process is as follows: The top of the LD element 9 mates with the bottom of the focusing mount 703 in the focusing assembly 7. Based on the rated power of the selected LD element 9, the vertical distance and bevel angle between the heat dissipation hole 803 in the heat dissipation base 8 and the bottom axis are determined. Then, the LD element 9 and the focusing assembly 7 are placed inside the heat dissipation hole 803. The bottom of the fixing base 5 is connected to the sealing boss 804 in the heat dissipation base 8, and then the two are assembled using fixing bolts 10, fixing through holes 501, and fixing threaded holes 801. The slide rail 402 is positioned using the slide groove 504, and the slide rail sleeve 4 is installed inside the fixing base 5. The area of ​​the fluorescent glass 2 and the concentration of fluorescent powder are determined based on the maximum light spot coverage area. Then, the fluorescent glass 2 is installed in the cooling groove 403 at the top of the slide rail sleeve 4, and the edge-sealing cap 1 is installed at the top of the slide rail sleeve 4. The encapsulation bolts 3 are then connected sequentially to the encapsulation through holes 101 on the edge-sealing cap 1 and the encapsulation threaded holes 401 on the slide rail sleeve 4 to complete the encapsulation.

[0070] Example 7: A 10W photo-thermal adjustable fluorescence conversion LD device, comprising the following parameters, packaging, and usage steps:

[0071] Parameters: The distance L between the heat dissipation hole and the center axis of the bottom surface of the heat sink is selected as 30mm, and the tilt angle α is selected as 36°.o The focal length of the LD element, R = L / tanα, was calculated to be 42mm. Subsequently, the parameter adjustment range D was determined to be 6mm. Based on the excitation distance adjustment range HH = RD ~ R + D (in mm), the excitation distance adjustment range between the LD element and the fluorescent glass was calculated to be 36mm ~ 48mm. The maximum spot coverage area of ​​the LD element is then calculated as A = π(Dtanα). 2 The maximum spot area was calculated to be 58 mm. 2 Therefore, the area of ​​the fluorescent glass should be 30mm². 2 The concentration of fluorescent powder added was selected as 25wt%.

[0072] Step S1: Install the LD element onto the bottom of the focusing assembly's focusing mount, and apply thermal grease to the contact area. Place the LD element and focusing assembly inside the heat dissipation holes of the heat sink, and apply thermal grease to the contact area between the focusing assembly surface and the inner wall of the heat dissipation holes. The device obtained after step S1 is named A. A effectively dissipates heat from the LD element.

[0073] Step S2: Position the device by connecting the bottom of the fixed base to the sealing boss in device A obtained in step S1, and then connect it to the fixing through hole on the fixed base and the fixing threaded hole on the heat dissipation base in sequence by fixing bolts. The device obtained after step S2 is named B.

[0074] Step S3: Apply high-temperature resistant grease to the surface of the slide groove in device B obtained in step S2. Then, using the positioning between the slide rail and the rectangular channel, install the slide rail sleeve inside the slide rail channel of the fixed base. Finally, screw the stop bolt into the stop threaded hole. The device obtained after step S3 is named C.

[0075] Step S4: Place fluorescent glass into the cooling groove of device C obtained in step S3, and install the edge-sealing cover on the upper surface of the fluorescent glass. Then, connect the sealing bolts to the sealing through holes on the edge-sealing cover and the sealing threaded holes on the slide rail sleeve in sequence to complete the sealing of this device.

[0076] Step S5: After power is turned on, the device obtained in step S4 enters its normal operating state. The LD element emits blue light, which, after passing through the focusing component, remotely excites the fluorescent glass. By moving the excitation distance between the fluorescent glass and the LD element, the operating temperature, luminous efficiency, color rendering index, and brightness of the device can be effectively controlled. The operating temperature of this device is adjustable within a range of 40°C. o C~70 oC, the luminous efficiency is adjustable from 60 lm / W to 126 lm / W, the color rendering index is adjustable from 45 to 54, and the high brightness region of the LD device is within the range of 39 mm to 45 mm of excitation distance.

[0077] Example 8: A 20W photo-thermal adjustable fluorescence conversion LD device, comprising the following parameters:

[0078] Parameters: The distance L between the heat dissipation hole and the center axis of the bottom surface of the heat sink base is selected as 35mm, and the tilt angle α is selected as 30°. o The focal length of the LD element, R = L / tanα, was calculated to be 61 mm. Subsequently, the parameter adjustment range D was determined to be 7 mm. Based on the excitation distance adjustment range HH = R - D mm ~ R + D mm between the LD element and the fluorescent glass, the excitation distance adjustment range between the LD element and the fluorescent glass was calculated to be 54 mm ~ 68 mm. The maximum spot area of ​​the LD element is A = π(Dtanα). 2 The maximum spot coverage area was calculated to be 50mm. 2 Therefore, the area of ​​the fluorescent glass should be 27mm². 2 The concentration of fluorescent powder added was selected as 20wt%.

[0079] After the device is packaged and powered on, it enters its normal operating state. The LD element emits blue light, which, after passing through the focusing assembly, remotely excites the fluorescent glass. By moving the excitation distance between the fluorescent glass and the LD element, the device's operating temperature, luminous efficiency, color rendering index, and brightness can be effectively controlled. The operating temperature of this device is adjustable within a range of 65°C. o C~95 o C, the luminous efficiency is adjustable from 120 lm / W to 180 lm / W, the color rendering index is adjustable from 50 to 59, and the high brightness region of the LD device is within the range of 57 mm to 64 mm of the excitation distance.

[0080] All other structures are the same as in Example 6 or Example 7.

[0081] Example 9: A 30W photo-thermal adjustable fluorescence conversion LD device, comprising the following parameters:

[0082] Parameters: The distance L between the heat dissipation hole and the center axis of the bottom surface of the heat sink is selected as 40mm, and the tilt angle α is selected as 24°. oThe focal length of the LD element, R = L / tanα, was calculated to be 90mm. The parameter adjustment range D was then determined to be 8mm. Based on the excitation distance adjustment range H between the LD element and the fluorescent glass, H = R - Dmm ~ R + Dmm, the excitation distance adjustment range between the LD element and the fluorescent glass was calculated to be 82mm ~ 98mm. The maximum spot area of ​​the LD element is A = π(Dtanα). 2 The maximum spot area was calculated to be 39 mm. 2 Therefore, the area of ​​the fluorescent glass should be 25mm. 2 The concentration of fluorescent powder added was selected as 15wt%.

[0083] After the device is packaged and powered on, it enters normal operation. The LD element emits blue light, which, after passing through the focusing assembly, remotely excites the fluorescent glass. By moving the excitation distance between the fluorescent glass and the LD element, the device's operating temperature, luminous efficiency, color rendering index, and brightness can be effectively controlled. The operating temperature of this device is adjustable within a range of 90°C. o C~135 o C, the luminous efficiency can be adjusted from 170 lm / W to 230 lm / W, the color rendering index can be adjusted from 55 to 67, and the high brightness region of the LD device is within the range of 88 mm to 91 mm of excitation distance.

[0084] All other structures are the same as in Example 6 or Example 7.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of using a photo-thermal performance adjustable fluorescence conversion LD device, characterized in that: The light-thermal adjustable fluorescent conversion LD device includes a heat dissipation base (8), in which at least two LD elements (9) and a focusing component (7) corresponding to the LD elements (9) are installed at an angle. An adjustable telescopic cylinder is connected to the heat dissipation base (8), and a fluorescent glass (2) is provided inside the adjustable telescopic cylinder. The laser emitted by the LD element (9) enters the fluorescent glass (2) through the focusing component (7) and then exits from the fluorescent glass (2). The usage method includes the following steps: Step S1: Parameter selection: The rated power of the LD element (9) is P, P=5W~30W, the distance between the bottom center of the heat dissipation hole (803) on the heat dissipation base (8) and the central axis of the heat dissipation base (8) is L, L=30mm~40mm, the tilt angle between the central axis of the heat dissipation hole (803) and the central axis of the heat dissipation base (8) is α, α=24°~36°, and the focal length of the light is calculated as R, R=L / tanα. According to the actual application requirements for luminous efficiency, working temperature and brightness, the parameter adjustment range D and the excitation distance H between the LD element (9) and the fluorescent glass (2) are determined, where D=6mm~8mm, H=RD~R+D, and the maximum spot coverage area is calculated as A, A=π(Dtanα). 2 ; Step S2: Based on the maximum spot coverage area A in step S1, select an area of ​​S and a fluorescent powder of Lu3Al5O. 12 :Ce 3+ Add fluorescent glass (2) with a concentration of x, where S = 0.5A~1.3A and x = 5wt%~25wt%. Install the fluorescent glass (2) inside the slide sleeve (4) of the adjustable telescopic cylinder and seal it with the edge-sealing cap (1) to obtain the first component. Step S3: Install the slide rail sleeve (4) of the first component into the fixed base (5) of the adjustable telescopic cylinder. The fixed base (5) is equipped with a stop bolt (6) for tightening the first component and the second component is obtained by pressing the first component against the position of the stop bolt. Step S4: Install the LD element (9) and the focusing assembly (7) in the heat dissipation hole (803) of the heat dissipation base (8) in sequence. The pins of the LD element (9) extend out from the wire outlet hole (802) of the heat dissipation base (8) and are connected to the power supply to obtain the third component. Step S5: Install the fixing base (5) of the second component on the heat dissipation base (8) of the third component to obtain a light-heat performance adjustable fluorescence conversion LD device; Step S6: Turn on the power to power on the light-thermal adjustable fluorescent conversion LD device, and adjust the excitation distance between the fluorescent glass (2) and the LD element (9) according to the usage requirements. Adjust the working temperature, luminous efficiency, color rendering index and brightness of the light-thermal adjustable fluorescent glass-based LD device, and thus obtain the working temperature range of 40°C~135°C, the luminous efficiency range of 60lm / W~230lm / W, and the color rendering index range of 45~67.

2. The method of using the photo-thermal performance adjustable fluorescence conversion LD device according to claim 1, characterized in that: The tilt angle between the LD element (9) and the focusing assembly (7) and the bottom plane of the heat sink base (8) is 24°~36°.

3. The method of using a light-heat performance adjustable fluorescent conversion type LD device according to claim 2, wherein: The focusing assembly (7) includes a focusing lens (702), a focusing cap (701), and a focusing base (703). The focusing cap (701) is threadedly connected to the focusing base (703) and forms a hollow mounting chamber inside. The focusing lens (702) is disposed in the mounting chamber. The focusing cap (701) and the focusing base (703) are provided with light-transmitting holes corresponding to the focusing lens (702).

4. The method of using a light-heat performance adjustable fluorescent conversion type LD device according to claim 1 or 3, characterized in that: The heat dissipation base (8) is provided with heat dissipation holes (803) corresponding to the LD element (9) and the focusing assembly (7). The upper part of the heat dissipation hole (803) is inclined towards the central axis of the heat dissipation base (8) and the inclination angle is α, α=24°~36°. The bottom of the heat dissipation base (8) is provided with a wire outlet hole (802) communicating with the heat dissipation hole (803). The upper part of the heat dissipation base (8) has a sealing boss (804).

5. The method of using a light-heat performance adjustable fluorescent conversion type LD device according to claim 4, wherein: The distance between the bottom center of the heat dissipation hole (803) and the central axis of the heat dissipation base (8) is L, where L = 30mm~40mm.

6. The method of using a light-heat performance adjustable fluorescent conversion type LD device according to claim 5, wherein: The fluorescent glass (2) contains Lu3Al5O 12 :Ce 3+ Fluorescent glass containing fluorescent powder, wherein Lu3Al5O 12 :Ce 3+ The amount of fluorescent powder added is x, 5wt%≤x≤25wt%, the absorption peak of the fluorescent glass (2) is 450nm~460nm and the emission peak is 520nm~530nm, the area of ​​the fluorescent glass (2) is S, S=0.5A~1.3A, and A is the maximum luminous spot coverage area.

7. The method of using a light-heat performance adjustable fluorescent conversion type LD device according to any one of claims 1-3, 5, 6, characterized in that: The adjustable telescopic cylinder includes a fixed base (5) and a slide rail sleeve (4). The fixed base (5) is connected to the heat dissipation base (8). The slide rail sleeve (4) is slidably disposed in the slide rail channel (503) of the fixed base (5), and the slide rail sleeve (4) is pressed against the fixed base (5) by a stop bolt (6).

8. The method of using a light-heat performance adjustable fluorescence conversion type LD device according to claim 7, wherein: The slide rail sleeve (4) is detachably connected to a sealing cap (1), and the fluorescent glass (2) is sealed inside the slide rail sleeve (4) through the sealing cap (1).

9. The method of using a light-heat performance adjustable fluorescent conversion type LD device according to claim 8, wherein: The slide sleeve (4) has an internal light channel (404), and the upper part of the slide sleeve (4) has a cooling groove (403) that cooperates with the fluorescent glass (2). The outer wall of the slide sleeve (4) has a slide rail (402), and the slide rail (402) is slidably engaged with the slide groove (504) on the inner wall of the fixed base (5).

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