CN110161010A - A kind of reflective controllable temperature laser excitation remote fluorescence material testing apparatus - Google Patents
A kind of reflective controllable temperature laser excitation remote fluorescence material testing apparatus Download PDFInfo
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- CN110161010A CN110161010A CN201910585195.3A CN201910585195A CN110161010A CN 110161010 A CN110161010 A CN 110161010A CN 201910585195 A CN201910585195 A CN 201910585195A CN 110161010 A CN110161010 A CN 110161010A
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Abstract
本发明公开一种反射式可控温激光激发远程荧光材料测试装置，包括光学平台、积分球、光谱仪、激光二极管、控温平台、圆形滑轨和滑块，其中控温平台由铜板、TEC、散热器、温度传感器、风扇、驱动电源、导线、测温仪表组成。测试时，圆形滑轨放置在积分球右半部分，激光二极管放置于滑块上，通过滑块在圆形滑轨的移动，实现激光二极管与荧光材料角度的调节，光由激光二极管照射到放置荧光材料的控温平台，由光谱仪采集积分球内部的反射光。当荧光材料需要升温时，通过改变TEC电流升高温度，由测温仪表采集铜板表面温度；当荧光材料需要降温时，通过改变TEC电流降低温度，同时开启风扇，加速降温冷却过程，由测温仪表采集铜板表面温度。
The invention discloses a reflective temperature-controllable laser excitation remote fluorescent material testing device, which includes an optical platform, an integrating sphere, a spectrometer, a laser diode, a temperature control platform, a circular slide rail and a slider, wherein the temperature control platform is composed of a copper plate, a TEC , radiator, temperature sensor, fan, drive power supply, wires, temperature measuring instrument. During the test, the circular slide rail is placed on the right half of the integrating sphere, and the laser diode is placed on the slider. Through the movement of the slider on the circular slide rail, the adjustment of the angle between the laser diode and the fluorescent material is realized, and the light is irradiated by the laser diode. A temperature-controlled platform for fluorescent materials is placed, and the reflected light inside the integrating sphere is collected by a spectrometer. When the fluorescent material needs to be heated up, the temperature is raised by changing the TEC current, and the surface temperature of the copper plate is collected by the temperature measuring instrument; when the fluorescent material needs to be cooled down, the temperature is lowered by changing the TEC current, and the fan is turned on at the same time to accelerate the cooling process. The meter collects the surface temperature of the copper plate.
Description
技术领域technical field
本发明属于半导体激光测试技术领域，具体涉及一种反射式可控温激光激发远程荧光材料测试装置。The invention belongs to the technical field of semiconductor laser testing, in particular to a reflective temperature-controllable laser excitation remote fluorescent material testing device.
背景技术Background technique
传统半导体白光照明主要采用蓝光LED芯片配合荧光粉的方式，但随着蓝光功率的不断上升，已出现日趋严重的发热和散热问题。近年激光二极管技术的发展，陆续出现蓝光激光和荧光转化材料配合的发光方案。作为第三代半导体照明领域的新一代技术，激光二极管照明有着超越LED照明的独特优势：长寿命、更高亮度、体积更小、光电转换效率更高、照射距离更长。而激光激发远程荧光材料的装置可以很好的测量反射率、透射率、准直透射率参数并且可以同时测试荧光材料的热稳定性现象。而目前还没有此类试验的实验装置，故设计一款可以测量反射光且测试荧光材料的热稳定性现象的装置是很有必要的。Traditional semiconductor white light lighting mainly uses blue LED chips with phosphor powder, but with the continuous increase of blue light power, there have been increasingly serious heat and heat dissipation problems. With the development of laser diode technology in recent years, light-emitting solutions combining blue light lasers and fluorescent conversion materials have emerged one after another. As a new generation technology in the field of third-generation semiconductor lighting, laser diode lighting has unique advantages over LED lighting: long life, higher brightness, smaller size, higher photoelectric conversion efficiency, and longer irradiation distance. The device for laser excitation of remote fluorescent materials can measure reflectance, transmittance, and collimated transmittance parameters well, and can simultaneously test the thermal stability of fluorescent materials. At present, there is no experimental device for this kind of experiment, so it is necessary to design a device that can measure reflected light and test the thermal stability of fluorescent materials.
发明内容Contents of the invention
本发明的目的是针对现有技术存在的问题，提供一种反射式可控温激光激发远程荧光材料测试装置，该装置操作便捷，能够实现激光激发远程荧光材料的测试。The object of the present invention is to solve the problems existing in the prior art, and provide a reflective temperature-controllable laser excitation remote fluorescent material testing device, which is easy to operate and can realize laser excitation remote fluorescent material testing.
为实现上述目的，本发明采用的技术方案是：In order to achieve the above object, the technical scheme adopted in the present invention is:
一种反射式可控温激光激发远程荧光材料测试装置，所述装置包括积分球、控温平台、光学平台、激光二极管、光谱仪、圆形滑轨和滑块，所述积分球放置在光学平台上，所述圆形滑轨固定于积分球右侧直径处，所述激光二极管通过滑块实现在圆形滑轨上的角度移动，光由激光二极管照射到放置荧光材料的控温平台，所述光谱仪采集积分球内部的反射光。A reflective temperature-controllable laser excitation remote fluorescent material testing device, the device includes an integrating sphere, a temperature control platform, an optical platform, a laser diode, a spectrometer, a circular slide rail and a slider, and the integrating sphere is placed on the optical platform Above, the circular slide rail is fixed at the diameter of the right side of the integrating sphere, and the laser diode realizes the angular movement on the circular slide rail through the slider, and the light is irradiated by the laser diode to the temperature control platform where the fluorescent material is placed, so The spectrometer collects the reflected light inside the integrating sphere.
优选地，所述控温平台通过螺纹孔固定在光学平台上。所述光学平台设置为高精度且表面具有大小相等螺纹孔。Preferably, the temperature control platform is fixed on the optical platform through threaded holes. The optical table is set with high precision and has threaded holes of equal size on the surface.
进一步地，所述积分球水平放置于光学平台上。Further, the integrating sphere is placed horizontally on the optical platform.
进一步地，所述激光二极管放置于积分球内部左端。Further, the laser diode is placed at the left end inside the integrating sphere.
进一步地，所述光谱仪与积分球连接。Further, the spectrometer is connected with an integrating sphere.
优选地，所述控温平台放置在积分球左侧，其放置荧光材料的一面贴合积分球。Preferably, the temperature control platform is placed on the left side of the integrating sphere, and the side on which the fluorescent material is placed is attached to the integrating sphere.
优选地，所述圆形滑轨与滑块表面分别涂覆一层与积分球内壁一致的漫反射材料。Preferably, the surfaces of the circular slide rail and the slider are respectively coated with a layer of diffuse reflection material consistent with the inner wall of the integrating sphere.
优选地，所述控温平台由铜板、TEC(Thermoelectric Cooler，半导体制冷片)、散热器、温度传感器、风扇、驱动电源、导线和测温仪表组成。Preferably, the temperature control platform is composed of a copper plate, TEC (Thermoelectric Cooler, semiconductor cooling chip), radiator, temperature sensor, fan, driving power, wires and temperature measuring instruments.
具体地，所述控温平台的驱动电源为TEC供电。所述测温仪表用于采集温度传感器的温度。Specifically, the driving power of the temperature control platform supplies power to the TEC. The temperature measuring instrument is used to collect the temperature of the temperature sensor.
优选地，所述铜板中心涂覆导热胶，用于固定荧光材料。Preferably, the center of the copper plate is coated with heat-conducting glue for fixing the fluorescent material.
优选地，所述温度传感器布置在铜板表面。Preferably, the temperature sensor is arranged on the surface of the copper plate.
优选地，所述风扇固定在控温平台的左端。当需要降温时，开启风扇。Preferably, the fan is fixed at the left end of the temperature control platform. When cooling is required, turn on the fan.
优选地，所述铜板中心采用抛光处理，使得光完全反射在积分球的内部。Preferably, the center of the copper plate is polished so that light is completely reflected inside the integrating sphere.
与现有技术相比，本发明的有益效果是：本发明提供的装置可以在激光激发远程荧光材料的测试中，通过调节激光二极管与荧光材料的角度，采集不同角度下积分球内部的反射光，实现对反射率、透射率、准直透射率等参数的测试；另外，通过控温平台对荧光材料温度进行控制，实现对荧光材料热稳定性的测试。Compared with the prior art, the beneficial effect of the present invention is: the device provided by the present invention can collect the reflected light inside the integrating sphere at different angles by adjusting the angle between the laser diode and the fluorescent material in the test of the laser excitation remote fluorescent material , realize the test of reflectance, transmittance, collimated transmittance and other parameters; in addition, control the temperature of the fluorescent material through the temperature control platform, and realize the test of the thermal stability of the fluorescent material.
附图说明Description of drawings
图1为根据实施例的本发明测试装置的三维图；Fig. 1 is a three-dimensional view of a testing device of the present invention according to an embodiment;
图2为根据实施例的本发明控温平台的三维图；Fig. 2 is a three-dimensional diagram of the temperature control platform of the present invention according to an embodiment;
图3为根据实施例的本发明测试装置的原理示意图。Fig. 3 is a schematic diagram of the principle of the testing device of the present invention according to an embodiment.
具体实施方式Detailed ways
下面将结合本发明中的附图，对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动条件下所获得的所有其它实施例，都属于本发明保护的范围。The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
如图1所示：一种反射式可控温激光激发远程荧光材料测试装置，该装置包括积分球1、控温平台2、光学平台3、激光二极管4、光谱仪5、圆形滑轨6、滑块7。将积分球1 放置在光学平台3上，控温平台2通过螺纹孔固定在光学平台3上，圆形滑轨6固定于积分球1右侧直径处，激光二极管4通过滑块7实现在圆形滑轨6上的移动。测试时，光由激光二极管4照射到放置荧光材料的控温平台2，由光谱仪5采集积分球1内部的反射光，实现对反射率、透射率、准直透射率等参数的测量；测试下一个角度时，只需要移动滑块 7带动激光二极管4，即可使得激光二极管4与荧光材料之间的角度偏移，由光谱仪5采集积分球1内部的反射光，实现对不同角度偏移下的反射率、透射率、准直透射率等参数的测量。As shown in Figure 1: a reflective temperature-controllable laser excitation remote fluorescent material testing device, the device includes an integrating sphere 1, a temperature control platform 2, an optical platform 3, a laser diode 4, a spectrometer 5, a circular slide rail 6, Slider7. Place the integrating sphere 1 on the optical platform 3, the temperature control platform 2 is fixed on the optical platform 3 through the threaded hole, the circular slide rail 6 is fixed on the diameter of the right side of the integrating sphere 1, and the laser diode 4 is realized in the circle through the slider 7. The movement on the shaped slide rail 6. During the test, the light is irradiated by the laser diode 4 to the temperature control platform 2 where the fluorescent material is placed, and the reflected light inside the integrating sphere 1 is collected by the spectrometer 5 to realize the measurement of parameters such as reflectance, transmittance, and collimated transmittance; under the test At an angle, it is only necessary to move the slider 7 to drive the laser diode 4, so that the angle between the laser diode 4 and the fluorescent material can be shifted, and the reflected light inside the integrating sphere 1 can be collected by the spectrometer 5 to achieve different angle shifts. The measurement of reflectance, transmittance, collimated transmittance and other parameters.
如图2所示：控温平台2，包括：温度传感器201、测温仪表202、荧光材料203、铜板204、TEC 205、散热器206、支架207、风扇208、导线209、驱动电源210。荧光材料 203涂覆导热胶固定在铜板204上，铜板204中心采用抛光处理，使得光完全反射在积分球1内部，测试时，激光激发远程荧光材料，控温平台2可以实现其温度的控制，当需要对荧光材料升温时，由驱动电源210作用于TEC 205改变其电流，对铜板204实行升温，由测温仪表202通过温度传感器201采集铜板204表面温度，当采集的温度低于设定温度时，则由驱动电源210继续作用于TEC 205，进行升温，直至达到设定温度，当采集的温度达到设定温度时，则关闭驱动电源210；当荧光材料203需要降温时，由驱动电源210 作用于TEC 205改变其电流，对铜板204实行降温，同时开启风扇208对散热器206进行加速冷却，由测温仪表202通过温度传感器201采集铜板204表面温度，当采集的温度高于设定温度时，则由驱动电源210继续作用于TEC 205同时风扇208继续工作，进行降温，直至达到设定温度，当采集的温度达到设定温度时，则关闭驱动电源210。控温平台2可以实现对荧光材料的温度控制，从而评价其热稳定性现象。As shown in Figure 2: temperature control platform 2, including: temperature sensor 201, temperature measuring instrument 202, fluorescent material 203, copper plate 204, TEC 205, radiator 206, bracket 207, fan 208, wire 209, drive power supply 210. The fluorescent material 203 is coated with heat-conducting glue and fixed on the copper plate 204. The center of the copper plate 204 is polished so that the light is completely reflected inside the integrating sphere 1. During the test, the laser excites the remote fluorescent material, and the temperature control platform 2 can realize its temperature control. When the fluorescent material needs to be heated up, the driving power supply 210 acts on the TEC 205 to change its current, and the copper plate 204 is heated up, and the temperature measuring instrument 202 collects the surface temperature of the copper plate 204 through the temperature sensor 201. When the collected temperature is lower than the set temperature , then the driving power 210 continues to act on the TEC 205 to heat up until it reaches the set temperature. When the collected temperature reaches the set temperature, the driving power 210 is turned off; when the fluorescent material 203 needs to cool down, the driving power 210 Act on the TEC 205 to change its current, cool down the copper plate 204, and at the same time turn on the fan 208 to accelerate the cooling of the radiator 206, and the temperature measuring instrument 202 collects the surface temperature of the copper plate 204 through the temperature sensor 201. When the collected temperature is higher than the set temperature , the driving power 210 continues to act on the TEC 205 while the fan 208 continues to work to cool down until the set temperature is reached. When the collected temperature reaches the set temperature, the driving power 210 is turned off. The temperature control platform 2 can realize the temperature control of the fluorescent material, so as to evaluate its thermal stability phenomenon.
如图3所示：滑块带动激光二极管在圆形滑轨上移动，实现角度变换，光经由激光二极管照射到荧光材料上，光谱仪进行光信号采集，获取积分球内部的反射光，实现对不同角度偏移下的反射率、透射率、准直透射率等参数的测量。As shown in Figure 3: the slider drives the laser diode to move on the circular slide rail to achieve angle transformation. The light is irradiated on the fluorescent material through the laser diode, and the spectrometer collects the optical signal to obtain the reflected light inside the integrating sphere to achieve different Measurement of reflectance, transmittance, collimated transmittance and other parameters under angle offset.
如图3所示：当需要对荧光材料升温时，由PLC控制触发TEC启动，由驱动电源作用于TEC改变其电流，对铜板实行升温，由测温仪表通过温度传感器进行热信号采集，采集铜板表面温度，当采集的温度低于设定温度时，则由驱动电源继续作用于TEC，进行升温，直至达到设定温度，当采集的温度达到设定温度时，则关闭驱动电源；当荧光材料需要降温时，由PLC控制触发TEC启动，由驱动电源作用于TEC改变其电流，对铜板实行降温，同时开启风扇对散热器进行加速冷却，由测温仪表通过温度传感器采集铜板表面温度，当采集的温度高于设定温度时，则由驱动电源继续作用于TEC同时风扇继续工作，进行降温，直至达到设定温度，当采集的温度达到设定温度时，则关闭驱动电源。控温平台可以实现对荧光材料的温度控制，从而评价其热稳定性现象。其中，驱动电源为稳压直流电源。As shown in Figure 3: when the temperature of the fluorescent material needs to be raised, the TEC is triggered by the PLC to start, the driving power acts on the TEC to change its current, and the copper plate is heated up, and the temperature measuring instrument collects the thermal signal through the temperature sensor to collect the copper plate Surface temperature, when the collected temperature is lower than the set temperature, the driving power will continue to act on the TEC to heat up until it reaches the set temperature, and when the collected temperature reaches the set temperature, turn off the driving power; when the fluorescent material When the temperature needs to be lowered, the TEC is triggered by the PLC control to start, and the driving power acts on the TEC to change its current to cool down the copper plate. At the same time, the fan is turned on to accelerate the cooling of the radiator. When the temperature is higher than the set temperature, the driving power will continue to act on the TEC while the fan will continue to work to cool down until the set temperature is reached. When the collected temperature reaches the set temperature, the drive power will be turned off. The temperature control platform can realize the temperature control of the fluorescent material, so as to evaluate its thermal stability phenomenon. Wherein, the driving power supply is a regulated DC power supply.
本发明涉及一种反射式可控温激光激发远程荧光材料测试装置，该装置主要由光学平台、积分球、光谱仪、激光二极管、控温平台、圆形滑轨、滑块组成。其中控温平台是由铜板、TEC、散热器、温度传感器、风扇、驱动电源、导线、测温仪表组成。在测试时，圆形滑轨放置在积分球右半部分，激光二极管放置于滑块上，通过滑块在圆形滑轨的移动，实现激光二极管与荧光材料角度的调节。光由激光二极管照射到放置荧光材料的控温平台，由光谱仪采集积分球内部的反射光。当荧光材料需要升温时，通过改变TEC电流升高温度，由测温仪表采集铜板表面温度；当荧光材料需要降温时，通过改变TEC电流降低温度，同时开启风扇，加速降温冷却过程，由测温仪表采集铜板表面温度。本发明不仅能够通过调节激光二极管与荧光材料的角度从而采集激光激发远程荧光材料的反射光，而且可以对荧光材料进行控温处理，评价其热稳定性性能。The invention relates to a reflective temperature-controllable laser excitation remote fluorescent material testing device, which is mainly composed of an optical platform, an integrating sphere, a spectrometer, a laser diode, a temperature control platform, a circular slide rail and a slider. The temperature control platform is composed of copper plate, TEC, radiator, temperature sensor, fan, drive power supply, wire, and temperature measuring instrument. During the test, the circular slide rail is placed on the right half of the integrating sphere, and the laser diode is placed on the slider. By moving the slider on the circular slide rail, the adjustment of the angle between the laser diode and the fluorescent material is realized. The light is irradiated by the laser diode to the temperature-controlled platform where the fluorescent material is placed, and the reflected light inside the integrating sphere is collected by the spectrometer. When the fluorescent material needs to be heated up, the temperature is raised by changing the TEC current, and the surface temperature of the copper plate is collected by the temperature measuring instrument; when the fluorescent material needs to be cooled down, the temperature is lowered by changing the TEC current, and the fan is turned on at the same time to accelerate the cooling process. The meter collects the surface temperature of the copper plate. The invention can not only collect the reflected light of the remote fluorescent material excited by laser light by adjusting the angle between the laser diode and the fluorescent material, but also can control the temperature of the fluorescent material and evaluate its thermal stability performance.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.
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