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CN107994454A - laser device - Google Patents

laser device Download PDF

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Publication number
CN107994454A
CN107994454A CN201611186671.7A CN201611186671A CN107994454A CN 107994454 A CN107994454 A CN 107994454A CN 201611186671 A CN201611186671 A CN 201611186671A CN 107994454 A CN107994454 A CN 107994454A
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Prior art keywords
laser
light
housing
those
crystal
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Chinese (zh)
Inventor
吴泰纬
曹宏熙
洪基彬
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Industrial Technology Research Institute ITRI
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Industrial Technology Research Institute ITRI
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09Processes or apparatus for excitation, e.g. pumping
    • H01S3/091Processes or apparatus for excitation, e.g. pumping using optical pumping
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09Processes or apparatus for excitation, e.g. pumping
    • H01S3/091Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/0915Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light
    • H01S3/0933Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of a semiconductor, e.g. light emitting diode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09Processes or apparatus for excitation, e.g. pumping
    • H01S3/091Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09Processes or apparatus for excitation, e.g. pumping
    • H01S3/091Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/0941Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Semiconductor Lasers (AREA)
  • Lasers (AREA)

Abstract

本发明公开一种激光装置,其包括一壳体、一激光晶体与至少二灯条。该壳体具有一环形或多边形的内壁。该激光晶体设置于该壳体中,并位于或邻近该壳体的该环形或多边形的内壁的中心。该些灯条设置于该壳体中,并位于或邻近该壳体的该环形或多边形的内壁。该些灯条呈环形或对称排列于该激光晶体的周围,并分别照射光线至该激光晶体以通过该激光晶体输出一激光束。

The present invention discloses a laser device, which includes a housing, a laser crystal and at least two light bars. The housing has an annular or polygonal inner wall. The laser crystal is arranged in the housing and is located at or adjacent to the center of the annular or polygonal inner wall of the housing. The light bars are arranged in the housing and are located at or adjacent to the annular or polygonal inner wall of the housing. The light bars are arranged in an annular or symmetrical manner around the laser crystal and irradiate light to the laser crystal respectively to output a laser beam through the laser crystal.

Description

激光装置laser device

技术领域technical field

本发明涉及一种激光装置,特别是涉及一种具有多个呈环形或对称排列的灯条的激光装置。The invention relates to a laser device, in particular to a laser device with a plurality of ring-shaped or symmetrically arranged light bars.

背景技术Background technique

激光在医疗方面的应用愈来愈广泛,例如仪器扫描、手术、杀菌等,而手持式激光装置是未来发展的趋势。然而,一般手持激光装置大多是由二节骨架所组成,不仅重量重会增加使用者的负担,而且移动上也造成不便,再加上激光击发时,激光晶体(共振腔)内需要高压驱动,也是增加危险性的原因。Lasers are increasingly used in medical applications, such as instrument scanning, surgery, sterilization, etc., and hand-held laser devices are the future development trend. However, most general handheld laser devices are composed of two-section skeletons, which not only increase the burden on the user due to their heavy weight, but also cause inconvenience in movement. In addition, when the laser is fired, the laser crystal (resonant cavity) needs to be driven by high voltage. It also increases the risk.

目前激光医疗设备中,手持式激光装置的架构通常是以闪光灯灯管作为激光的汞浦源(pump source),并将闪光灯灯管与激光晶体做平行排列,且利用侧向激发的方式对激光晶体进行照射,进而透过激光晶体输出激光束。In the current laser medical equipment, the structure of the hand-held laser device usually uses the flash tube as the pump source of the laser, and the flash tube and the laser crystal are arranged in parallel, and the laser is excited by lateral excitation. The crystal is irradiated, and then the laser beam is output through the laser crystal.

详言之,一般手持式激光装置的外观是以二个活动骨架作90度连接,而激光晶体(共振腔)则放在第二节骨架中,并透过二面反射镜将该激光晶体所输出的激光束传导至第一节骨架。但是,因闪光灯灯管与激光晶体(共振腔)为平行设置,再加上两者均需要透过水溶液进行降温,故手持式激光装置的尺寸无法缩小,从而造成体积大且重量重。In detail, the appearance of a general hand-held laser device is that two movable skeletons are connected at 90 degrees, and the laser crystal (resonant cavity) is placed in the second skeleton, and the laser crystal is formed by two mirrors. The output laser beam is transmitted to the first skeleton. However, because the flash lamp tube and the laser crystal (resonator) are arranged in parallel, and both need to be cooled by an aqueous solution, the size of the handheld laser device cannot be reduced, resulting in large volume and heavy weight.

再者,在闪光灯灯管的点亮上,因闪光灯灯管的二端电极需要数百伏特的高压电源,故若电极与金属互相接触则会造成短路,或者长期使用闪光灯灯管后,二端电极外围的绝缘皮也易老化脱落,此时手持式激光装置会充斥着高压电源,进而危害到使用者的安全。Furthermore, in the lighting of the flash tube, because the two-terminal electrodes of the flash tube need a high-voltage power supply of hundreds of volts, if the electrodes and the metal are in contact with each other, it will cause a short circuit, or after using the flash tube for a long time, the two terminals will be damaged. The insulating skin around the electrodes is also prone to aging and falling off. At this time, the handheld laser device will be flooded with high-voltage power supply, which will endanger the safety of users.

另外,以闪光灯灯管而言,闪光灯灯管的波长介于220至280纳米之间,且激光晶体的吸收光谱相当的窄,在闪光灯灯管搭配激光晶体下,容易造成过多的光转化成热源,导致激光转换效能难以提升。In addition, as far as the flash tube is concerned, the wavelength of the flash tube is between 220 and 280 nanometers, and the absorption spectrum of the laser crystal is quite narrow. Under the combination of the flash tube and the laser crystal, it is easy to cause too much light to be converted into The heat source makes it difficult to improve the laser conversion efficiency.

因此,如何解决上述已知技术的问题,实已成为本领域技术人员的一大课题。Therefore, how to solve the problems of the above-mentioned known technologies has become a major task for those skilled in the art.

发明内容Contents of the invention

本发明的目的在于提供一种激光装置,其提升激光晶体的接收照度或激光束的输出效能。The object of the present invention is to provide a laser device, which improves the receiving illumination of the laser crystal or the output efficiency of the laser beam.

为达上述目的,本发明的激光装置包括:一壳体,其具有一环形或多边形的内壁;一激光晶体,其设置于该壳体中,并位于或邻近该壳体的该环形或多边形的内壁的中心;以及至少二灯条,其设置于该壳体中,并位于或邻近该壳体的该环形或多边形的内壁,其中,该些灯条呈环形排列或对称排列于该激光晶体的周围,并分别照射光线至该激光晶体以通过该激光晶体输出一激光束。To achieve the above-mentioned purpose, the laser device of the present invention includes: a housing, which has an annular or polygonal inner wall; a laser crystal, which is arranged in the housing, and is located at or adjacent to the annular or polygonal inner wall of the housing. The center of the inner wall; and at least two light bars, which are arranged in the housing and located at or adjacent to the annular or polygonal inner wall of the housing, wherein the light bars are arranged in a ring or symmetrically on the laser crystal surroundings, and respectively irradiating light to the laser crystal to output a laser beam through the laser crystal.

由上可知,本发明的激光装置中,主要是将多个灯条呈环形或对称排列于激光晶体的周围,并分别照射光线至该激光晶体以输出一激光束,由此提升该激光晶体的接收照度、该激光束的转换效能及输出效能。It can be seen from the above that in the laser device of the present invention, a plurality of light bars are arranged in a ring or symmetrically around the laser crystal, and respectively irradiate light to the laser crystal to output a laser beam, thus improving the laser crystal. Received illuminance, conversion performance and output performance of the laser beam.

为让本发明的上述特征和优点能更明显易懂,下文特举实施例,并配合所附图式作详细说明。在以下描述内容中将部分阐述本发明的额外特征及优点,且此等特征及优点将部分自所述描述内容显而易见,或可通过对本发明的实践习得。本发明的特征及优点借助于在申请专利范围中特别指出的元件及组合来认识到并达到。应理解,前文一般描述与以下详细描述两者均仅为例示性及解释性的,且不欲约束本发明所主张的范围。In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The features and advantages of the invention will be realized and attained by means of the elements and combinations particularly pointed out in the claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the scope of the invention as claimed.

附图说明Description of drawings

图1A与图1B分别为本发明的激光装置于二个不同方向的剖视图;1A and FIG. 1B are cross-sectional views of the laser device of the present invention in two different directions;

图2A至图2F分别为本发明图1A的激光装置的各种不同态样的示意图;2A to 2F are schematic diagrams of various aspects of the laser device in FIG. 1A of the present invention;

图3A与图3B分别为本发明第一实施例的激光装置于二个不同方向的剖视图;3A and 3B are cross-sectional views of the laser device in two different directions according to the first embodiment of the present invention;

图4A与图4B分别为本发明第二实施例的激光装置于二个不同方向的剖视图;4A and 4B are cross-sectional views of the laser device in two different directions according to the second embodiment of the present invention;

图5为本发明图4B的激光装置的部分放大图;以及Fig. 5 is a partially enlarged view of the laser device of Fig. 4B of the present invention; and

图6为本发明的激光装置与已知技术的手持式激光装置的比较表图。FIG. 6 is a graph comparing the laser device of the present invention with the hand-held laser device of the prior art.

符号说明Symbol Description

1、1a、1b激光装置 2、20壳体1, 1a, 1b laser device 2, 20 shell

21内壁 22中心21 inner wall 22 center

23容置空间 3激光晶体23 accommodation space 3 laser crystal

30激光束 31第一端面30 laser beam 31 first end face

32第二端面 41第一薄膜32 second end face 41 first film

42第二薄膜 5灯条42 second film 5 light bars

5a发光二极管 5b导光条5a Light-emitting diode 5b Light guide strip

50光线 51承载部50 rays of light 51 carrying part

52发光部 53斜面52 Light emitting part 53 Inclined surface

54V型沟槽 61汞浦光源54V groove 61mercury light source

62多芯光纤 71聚焦镜62 multi-core optical fiber 71 focusing mirror

72反射镜 73输出端72 mirror 73 output terminal

D方向 α夹角D direction α included angle

β、θ 角度。β, θ angles.

具体实施方式Detailed ways

以下通过特定的具体实施形态说明本发明的实施方式,熟悉此技术的人士可由本说明书所揭示的内容轻易地了解本发明的其他优点与功效,亦可通过其他不同的具体实施形态加以施行或应用。The following describes the implementation of the present invention through specific specific implementation forms. Those who are familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification, and can also be implemented or applied through other different specific implementation forms. .

图1A与图1B分别绘示本发明的激光装置1于二个不同方向(如侧向及正向)的剖视图。如图所示,该激光装置1可为手持式激光装置,并可为图3A至图3B的第一实施例的激光装置1a、或图4A至图4B的第二实施例的激光装置1b,但不以此为限。FIG. 1A and FIG. 1B respectively show cross-sectional views of the laser device 1 of the present invention in two different directions (such as side and front). As shown in the figure, the laser device 1 can be a hand-held laser device, and can be the laser device 1a of the first embodiment shown in FIGS. 3A to 3B , or the laser device 1b of the second embodiment shown in FIGS. 4A to 4B , But not limited to this.

如图1A与图1B所示,该激光装置1主要包括一壳体2、一激光晶体3与至少二个灯条5,图1A为六个灯条5。该壳体2具有一环形或多边形的内壁21。该环形可为圆形或椭圆形等,该多边形可为四边形、五边形、六边形或其他多边形,请见图2A至图2F。As shown in FIGS. 1A and 1B , the laser device 1 mainly includes a casing 2 , a laser crystal 3 and at least two light bars 5 , and FIG. 1A shows six light bars 5 . The housing 2 has an annular or polygonal inner wall 21 . The ring can be a circle or an ellipse, etc., and the polygon can be a quadrangle, pentagon, hexagon or other polygons, see FIGS. 2A to 2F .

该激光晶体3设置于该壳体2中,并位于或邻近该壳体2的该环形或多边形的内壁21的中心22。该激光晶体3可为激光增益介质(laser gain medium)。该些灯条5设置于该壳体2中,并位于或邻近该壳体2的该环形或多边形的内壁21。该些灯条5可呈环形排列或对称排列于该激光晶体3的周围,并分别照射光线50至该激光晶体3以激发该激光晶体3输出一激光束30。The laser crystal 3 is disposed in the casing 2 and located at or adjacent to the center 22 of the annular or polygonal inner wall 21 of the casing 2 . The laser crystal 3 can be a laser gain medium. The light bars 5 are disposed in the casing 2 and located at or adjacent to the annular or polygonal inner wall 21 of the casing 2 . The light bars 5 can be arranged in a ring or symmetrically around the laser crystal 3 , and respectively irradiate light 50 to the laser crystal 3 to excite the laser crystal 3 to output a laser beam 30 .

该壳体2可具有一容置空间23,且该容置空间23中可填充有冷却液(图未示),以通过该冷却液降低该激光晶体3与该些灯条5的温度。该冷却液可为冷却水或含有冷凝胶体的冷却液。而且,该激光装置1可连接水循环系统(图未示)至该壳体2的容置空间23中,以透过该水循环系光供给及循环该冷却液。The casing 2 can have a receiving space 23 , and the receiving space 23 can be filled with cooling liquid (not shown in the figure), so as to reduce the temperature of the laser crystal 3 and the light bars 5 through the cooling liquid. The cooling liquid can be cooling water or cooling liquid containing cryogel. Moreover, the laser device 1 can be connected with a water circulation system (not shown in the figure) to the accommodating space 23 of the casing 2, so as to supply and circulate the cooling liquid through the water circulation system.

该激光装置1可包括第一薄膜41与第二薄膜42。该第一薄膜41与与第二薄膜42分别形成于该激光晶体3的相对的第一端面31与第二端面32上,且该第一薄膜41、激光晶体3与第二薄膜42共同构成一共振腔。The laser device 1 may include a first thin film 41 and a second thin film 42 . The first thin film 41 and the second thin film 42 are respectively formed on the opposite first end face 31 and the second end face 32 of the laser crystal 3, and the first thin film 41, the laser crystal 3 and the second thin film 42 together form a resonant cavity.

该第一薄膜41可作为第一反射镜,且该第一薄膜41具有全反射的940至990纳米(nm)的波长、与全反射的2650至3000纳米的波长。该第二薄膜42可作为第二反射镜,且该第二薄膜42具有全反射的940至990纳米的波长、与部分反射的2650至3000纳米的波长。该第二薄膜42的该部分反射的反射率可为90%至99%,且该激光晶体3可透过该第二薄膜42输出该激光束30,但不以此为限。The first film 41 can be used as a first reflection mirror, and the first film 41 has a total reflection wavelength of 940 to 990 nanometers (nm) and a total reflection wavelength of 2650 to 3000 nm. The second film 42 can be used as a second reflection mirror, and the second film 42 has a wavelength of 940-990 nm for total reflection and a wavelength of 2650-3000 nm for partial reflection. The reflectance of the part of the second film 42 can be 90% to 99%, and the laser crystal 3 can output the laser beam 30 through the second film 42, but not limited thereto.

另外,该激光装置1可包括一壳体20、一聚焦镜71、一反射镜72与一输出端73。该壳体20可结合至该壳体2,该聚焦镜71位于该壳体20中并对应于该第二薄膜42,该反射镜72位于该壳体20中并对应于该聚焦镜71,该输出端73位于该壳体20外并对应于该反射镜72。而且,该聚焦镜71可将该激光晶体3透过该第二薄膜42所输出的该激光束30聚焦于该反射镜72中,并由该反射镜72将该聚焦镜71所聚焦的该激光束30反射或输出至该输出端73外。In addition, the laser device 1 may include a housing 20 , a focusing mirror 71 , a reflecting mirror 72 and an output terminal 73 . The housing 20 can be combined with the housing 2, the focusing mirror 71 is located in the housing 20 and corresponds to the second film 42, the reflector 72 is located in the housing 20 and corresponds to the focusing mirror 71, the The output terminal 73 is located outside the housing 20 and corresponds to the reflector 72 . Moreover, the focusing mirror 71 can focus the laser beam 30 output by the laser crystal 3 through the second film 42 in the reflecting mirror 72, and the laser beam focused by the focusing mirror 71 can be focused by the reflecting mirror 72 The beam 30 is reflected or output out of this output port 73 .

图2A至图2F分别绘示本发明图1A的激光装置1的各种不同态样,且图2A至图2F的激光装置1可应用于图3A至图3B的激光装置1a与图4A至图4B的激光装置1b中。2A to 2F respectively depict various aspects of the laser device 1 of FIG. 1A of the present invention, and the laser device 1 of FIGS. 2A to 2F can be applied to the laser device 1a of FIGS. 3A to 3B and FIG. 4A to FIG. 4B in the laser device 1b.

如图2A所示,该激光装置1的壳体2可具有一环形的内壁21,且该激光装置1可具有二灯条5。如图2B所示,该壳体2可具有一环形的内壁21,且该激光装置1可具有三灯条5。如图2C所示,该壳体2可具有一环形的内壁21,且该激光装置1可具有四灯条5。As shown in FIG. 2A , the housing 2 of the laser device 1 can have an annular inner wall 21 , and the laser device 1 can have two light bars 5 . As shown in FIG. 2B , the casing 2 can have an annular inner wall 21 , and the laser device 1 can have three light bars 5 . As shown in FIG. 2C , the casing 2 can have an annular inner wall 21 , and the laser device 1 can have four light bars 5 .

又,如图2D所示,该壳体2可具有一环形的内壁21,且该激光装置1可具有五灯条5。如图2E所示,该壳体2可具有五边形的内壁21,且该激光装置1可具有五灯条5。如图2F所示,该壳体2可具有六边形的内壁21,且该激光装置1可具有六灯条5。Also, as shown in FIG. 2D , the housing 2 can have an annular inner wall 21 , and the laser device 1 can have five light bars 5 . As shown in FIG. 2E , the housing 2 may have a pentagonal inner wall 21 , and the laser device 1 may have five light bars 5 . As shown in FIG. 2F , the housing 2 may have a hexagonal inner wall 21 , and the laser device 1 may have six light bars 5 .

上述灯条5彼此间隔的角度θ可依运算式θ=360°/N±10%计算之,其中,N为该些灯条5的数量。以图2B为例,三灯条5彼此间隔的角度θ=360°/3±10%,也就是该角度θ可介于132度(即120度加12度)至108度(即120度减12度)之间。The angle θ at which the light bars 5 are spaced apart from each other can be calculated according to the formula θ=360°/N±10%, where N is the number of the light bars 5 . Taking Figure 2B as an example, the angle θ at which the three light bars 5 are spaced apart from each other is 360°/3±10%, that is, the angle θ can range from 132° (ie 120° plus 12°) to 108° (ie 120° minus 12°). 12 degrees).

图3A与图3B分别绘示本发明第一实施例的激光装置1a于二个不同方向(如侧向及正向)的剖视图。如图所示,上述图1A至图2F的各灯条5可为多个个发光二极管(LED)5a串接而成,或各灯条5可由多个个发光二极管(LED)5a排列而成,各灯条5也可为LED灯管,该些发光二极管5a均可具有承载部51与发光部52,该些发光二极管5a的发光部52或LED灯管可产生该光线50以照射该激光晶体3。3A and 3B respectively show cross-sectional views of the laser device 1a in two different directions (such as side and front) according to the first embodiment of the present invention. As shown in the figure, the above-mentioned light bars 5 in FIGS. 1A to 2F can be formed by connecting a plurality of light-emitting diodes (LEDs) 5a in series, or each light bar 5 can be formed by arranging a plurality of light-emitting diodes (LEDs) 5a. Each light bar 5 can also be an LED lamp tube, and the light emitting diodes 5a can have a bearing part 51 and a light emitting part 52, and the light emitting part 52 of the light emitting diodes 5a or the LED lamp tube can generate the light 50 to irradiate the laser light Crystal 3.

该些发光二极管5a的波长可介于950至980纳米之间,并高于已知技术的闪光灯灯管的波长(介于220至280纳米之间)。因此,本发明以该些发光二极管5a搭配该激光晶体3能减少该光线50转换成热源,并提升该光线50转换成该激光束30的转换效能。The wavelength of the light emitting diodes 5 a can be between 950 and 980 nanometers, which is higher than the wavelength of the known flash tube (between 220 and 280 nanometers). Therefore, in the present invention, the combination of the light emitting diodes 5 a with the laser crystal 3 can reduce the conversion of the light 50 into a heat source, and improve the conversion efficiency of the light 50 into the laser beam 30 .

图4A与图4B分别绘示本发明第二实施例的激光装置1b于二个不同方向(如侧向及正向)的剖视图,图5系绘示本发明图4B的激光装置1b的部分放大图。Figure 4A and Figure 4B respectively depict the cross-sectional views of the laser device 1b of the second embodiment of the present invention in two different directions (such as sideways and forward directions), and Figure 5 shows a partial enlargement of the laser device 1b of Figure 4B of the present invention picture.

如图4A至图4B所示,可为至少二导光条5b,如图4A显示六导光条5b。该导光条5b可具有一斜面53与多个V型沟槽54,该斜面53面向或接触该壳体2的该环形或多边形的内壁21,且该些V型沟槽54面向该激光晶体3。As shown in FIG. 4A to FIG. 4B , there may be at least two light guide bars 5 b, for example, six light guide bars 5 b are shown in FIG. 4A . The light guide bar 5b may have an inclined surface 53 and a plurality of V-shaped grooves 54, the inclined surface 53 faces or contacts the annular or polygonal inner wall 21 of the housing 2, and the V-shaped grooves 54 face the laser crystal 3.

如图4B所示,该导光条5b的该些V型沟槽54可具有相同尺寸或相同角度β(见图5)。或者,如图5所示,该导光条5b的该些V型沟槽54可依据方向D由疏至密或由大至小排列。As shown in FIG. 4B , the V-shaped grooves 54 of the light guide bar 5 b may have the same size or the same angle β (see FIG. 5 ). Or, as shown in FIG. 5 , the V-shaped grooves 54 of the light guide bar 5 b can be arranged according to the direction D from sparse to dense or from large to small.

如图5所示,该导光条5b的该斜面53与该壳体2的该环形或多边形的内壁21之间的夹角α可介于1度至20度,如1、5、10、15或20度。而且,该导光条5b的该些V型沟槽54的角度β可介于5度至85度之间,如20、40、60或80度。As shown in FIG. 5 , the included angle α between the inclined surface 53 of the light guide strip 5b and the annular or polygonal inner wall 21 of the housing 2 can range from 1 degree to 20 degrees, such as 1, 5, 10, 15 or 20 degrees. Moreover, the angle β of the V-shaped grooves 54 of the light guide bar 5 b can be between 5 degrees and 85 degrees, such as 20, 40, 60 or 80 degrees.

如图4B至图5所示,该激光装置1b可包括一汞浦光源61与一多芯光纤62。该多芯光纤62分别连接该汞浦光源61与该些导光条5b,该汞浦光源61产生该光线50以通过该多芯光纤62传导该光线50至该些导光条5b中,且该光线50依序透过该导光条5b的该斜面53与该些V型沟槽54照射至该激光晶体3。As shown in FIG. 4B to FIG. 5 , the laser device 1 b may include a mercury pump light source 61 and a multi-core optical fiber 62 . The multi-core optical fiber 62 respectively connects the mercury pump light source 61 and the light guide strips 5b, the mercury pump light source 61 generates the light 50 to conduct the light 50 to the light guide strips 5b through the multi-core optical fiber 62, and The light 50 sequentially passes through the inclined surface 53 and the V-shaped grooves 54 of the light guide bar 5 b to illuminate the laser crystal 3 .

该汞浦光源61可为激光二极管(Laser Diode,LD)。该激光二极管的波长可介于965至980纳米之间,并高于已知技术的闪光灯灯管的波长(介于220至280纳米之间)。因此,本发明以该激光二极管61与该导光条5b搭配该激光晶体3能减少该光线50转换成热源,并提升该光线50转换成该激光束30的转换效能。The mercury pump light source 61 can be a laser diode (Laser Diode, LD). The wavelength of the laser diode can be between 965 and 980 nanometers, which is higher than the wavelength of the known flash lamp tube (between 220 and 280 nanometers). Therefore, in the present invention, the combination of the laser diode 61 and the light guide strip 5 b with the laser crystal 3 can reduce the conversion of the light 50 into heat source and improve the conversion efficiency of the light 50 into the laser beam 30 .

图6绘示本发明第一实施例的激光装置1a、第二实施例的激光装置1b与已知技术的手持式激光装置的比较表。FIG. 6 shows a comparison table of the laser device 1a of the first embodiment of the present invention, the laser device 1b of the second embodiment and the hand-held laser device of the known technology.

如图所示,经实际测量结果,在尺寸方面,上述已知技术的手持式激光装置中,壳体的内壁的直径约3厘米;反之,本发明第一实施例的激光装置1a中,该壳体2的内壁21的直径(以环形为例)约2.3厘米,而第二实施例的激光装置1b中,该壳体2的内壁21的直径(以环形为例)约2厘米。因此,本发明的激光装置1a(1b)的尺寸可小于已知技术的手持式激光装置的尺寸。As shown in the figure, in terms of size, in the hand-held laser device of the above known technology, the diameter of the inner wall of the housing is about 3 centimeters; on the contrary, in the laser device 1a of the first embodiment of the present invention, the The diameter of the inner wall 21 of the housing 2 (take the ring as an example) is about 2.3 cm, while in the laser device 1b of the second embodiment, the diameter of the inner wall 21 of the housing 2 (take the ring as an example) is about 2 cm. Therefore, the size of the laser device 1a (1b) of the present invention can be smaller than that of a known art hand-held laser device.

在重量方面,已知技术的手持式激光装置中,壳体、灯管、激光晶体与水溶液总共约300公克;反之,本发明第一实施例的激光装置1a中,该壳体2、发光二极管5a、激光晶体3与容置空间23内的冷却液总共约220公克,而第二实施例的激光装置1b中,该壳体2、导光条5b、激光晶体3与容置空间23内的冷却液总共约200公克。因此,本发明的激光装置1a(1b)的重量可轻于已知技术的手持式激光装置的重量。In terms of weight, in the hand-held laser device of the known technology, the housing, lamp tube, laser crystal and aqueous solution are about 300 grams in total; on the contrary, in the laser device 1a of the first embodiment of the present invention, the housing 2, light emitting diode 5a, the cooling liquid in the laser crystal 3 and the accommodation space 23 is about 220 grams in total, and in the laser device 1b of the second embodiment, the housing 2, the light guide strip 5b, the laser crystal 3 and the cooling liquid in the accommodation space 23 The total amount of coolant is about 200 grams. Therefore, the weight of the laser device 1a (1b) of the present invention can be lighter than that of the known art hand-held laser devices.

在危险性方面,已知技术的手持式激光装置中,激光晶体的二端电极有数百伏特电压;反之,本发明第一实施例的激光装置1a中,仅有该发光二极管5a的直流电压(3至24伏特),而第二实施例的激光装置1b中,仅有多芯光纤62与导光条5b所传导的光线50而无电压。因此,本发明的激光装置1a(1b)的危险性可低于已知技术的手持式激光装置的危险性。In terms of danger, in the hand-held laser device of the known technology, the two-terminal electrodes of the laser crystal have a voltage of several hundred volts; on the contrary, in the laser device 1a of the first embodiment of the present invention, only the DC voltage of the light emitting diode 5a (3 to 24 volts), while in the laser device 1b of the second embodiment, only the light 50 guided by the multi-core optical fiber 62 and the light guide strip 5b has no voltage. Therefore, the hazard of the laser device 1a (1b) of the present invention can be lower than that of the known art hand-held laser devices.

在接收照度方面,已知技术的手持式激光装置中,激光晶体的接收照度约3600瓦/平方米(W/m2);反之,本发明第一实施例的激光装置1a中,该激光晶体3的接收照度约6000瓦/平方米(W/m2),而第二实施例的激光装置1b中,该激光晶体3的接收照度约7000瓦/平方米(W/m2)。因此,本发明的激光装置1a(1b)的接收照度可高于已知技术的手持式激光装置的接收照度。In terms of received illuminance, in the hand-held laser device of the known technology, the received illuminance of the laser crystal is about 3600 watts/square meter (W/m 2 ); on the contrary, in the laser device 1a of the first embodiment of the present invention, the laser crystal The received illuminance of the laser crystal 3 is about 6000 watts/square meter (W/m 2 ), while in the laser device 1b of the second embodiment, the received illuminance of the laser crystal 3 is about 7000 watts/square meter (W/m 2 ). Therefore, the received illuminance of the laser device 1a (1b) of the present invention can be higher than that of the known art hand-held laser device.

由上可知,本发明的激光装置中,主要是将多个灯条呈环形或对称排列于激光晶体的周围,并分别照射光线至该激光晶体以输出一激光束,由此提升该激光晶体的接收照度、该激光束的转换效能及输出效能。同时,由图6的比较表可知,本发明的激光装置可具有较小的尺寸、较轻的重量、较低的危险性与较高的接收照度。It can be seen from the above that in the laser device of the present invention, a plurality of light bars are arranged in a ring or symmetrically around the laser crystal, and respectively irradiate light to the laser crystal to output a laser beam, thus improving the laser crystal. Received illuminance, conversion performance and output performance of the laser beam. At the same time, it can be seen from the comparison table in FIG. 6 that the laser device of the present invention can have smaller size, lighter weight, lower risk and higher received illuminance.

上述实施形态仅例示性说明本发明的原理、特点及其功效,并非用以限制本发明的可实施范畴,任何熟悉此项技术的人士均可在不违背本发明的精神及范畴下,对上述实施形态进行修饰与改变。任何运用本发明所揭示内容而完成的等效改变及修饰,均仍应以所附的权利要求所涵盖。因此,本发明的权利保护范围,应如权利要求所列。The above-mentioned embodiments are only illustrative of the principles, features and effects of the present invention, and are not intended to limit the scope of the present invention. Any person familiar with this technology can use the above-mentioned The embodiment is modified and changed. Any equivalent changes and modifications accomplished by using the disclosed contents of the present invention shall still be covered by the appended claims. Therefore, the protection scope of the present invention should be listed in the claims.

Claims (17)

1. a kind of laser aid, including:
Housing, it has the inner wall of annular or polygon;
Laser crystal, it is arranged in the housing, and the annular at or adjacent to the housing or the center of the inner wall of polygon; And
At least two lamp bars, it is arranged in the housing, and at or adjacent to the annular of the housing or the inner wall of polygon,
Wherein, those lamp bars are arranged in a ring or symmetric arrays are around the laser crystal, and irradiation light is sharp to this respectively Luminescent crystal with pass through the laser crystal export a laser beam.
2. laser aid as claimed in claim 1, wherein, which also has accommodating space, and is filled in the accommodating space There is coolant, to reduce the temperature of the laser crystal and those lamp bars by the coolant.
3. laser aid as claimed in claim 1, further includes the first film and the second film, it is respectively formed in laser crystalline substance In the opposite first end face and second end face of body, and the first film, laser crystal and the second film collectively form a resonance Chamber.
4. laser aid as claimed in claim 3, wherein, the first film is as the first speculum, and the first film has There are 940 to 990 nanometers of wavelength of total reflection, 2650 to 3000 nanometers of the wavelength with total reflection.
5. laser aid as claimed in claim 3, wherein, second film is as the second speculum, and second film has There are 940 to 990 nanometers of wavelength of total reflection, 2650 to 3000 nanometers of the wavelength with part reflection.
6. laser aid as claimed in claim 5, wherein, the reflectivity of the part reflection of second film for 90% to 99%, and the laser crystal exports the laser beam through second film.
7. laser aid as claimed in claim 1, wherein, the angle, θ that those lamp bars are spaced is calculated according to following arithmetic expression It:
θ=360 °/N ± 10%, N are the quantity of those lamp bars.
8. laser aid as claimed in claim 1, wherein, respectively the lamp bar is concatenated or arranged for multiple light emitting diodes and forms, And those light emitting diodes produce the light to irradiate the laser crystal.
9. laser aid as claimed in claim 8, wherein, the wavelength of those light emitting diodes between 950 to 980 nanometers it Between.
10. laser aid as claimed in claim 1, wherein, respectively the lamp bar can be LED lamp tube, and those LED lamp tubes are produced and are somebody's turn to do Light is to irradiate the laser crystal.
11. a kind of laser aid, including:
Housing, it has the inner wall of annular or polygon;
Laser crystal, it is arranged in the housing, and the annular at or adjacent to the housing or the center of the inner wall of polygon; And
At least two light-strips, it is arranged in the housing, and at or adjacent to the annular of the housing or the inner wall of polygon,
Wherein, those light-strips are arranged in a ring or symmetric arrays are around the laser crystal, and irradiation light extremely should respectively Laser crystal with pass through the laser crystal export a laser beam.
12. laser aid as claimed in claim 11, wherein, light-strip has inclined-plane and a multiple V-grooves, the inclined-plane towards Or the annular of the housing or the inner wall of polygon are contacted, and those V-grooves are towards the laser crystal.
13. laser aid as claimed in claim 12, wherein, this of the inclined-plane of the light-strip and the housing are annular or polygon Angle between the inner wall of shape is between 1 degree to 20 degree.
14. laser aid as claimed in claim 12, wherein, the angle of those V-grooves of the light-strip is between 5 degree to 85 Between degree.
15. laser aid as claimed in claim 12, wherein, those V-grooves of the light-strip have identical size or by Dredge to solid matter and arrange.
16. laser aid as claimed in claim 11, further includes mercury Pu light source and multi-core optical fiber, which connects respectively The mercury Pu light source and those light-strips, the mercury Pu light source produce the light and are led with conducting the light by the multi-core optical fiber to those In striation, and the light sequentially exposes to the laser crystal through the inclined-plane and those V-grooves of the light-strip.
17. laser aid as claimed in claim 12, wherein, which is laser diode, and the laser diode Wavelength between 965 to 980 nanometers.
CN201611186671.7A 2016-10-26 2016-12-20 laser device Pending CN107994454A (en)

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Application publication date: 20180504