WO2020248559A1 - 一种ld激光光源模组 - Google Patents

一种ld激光光源模组 Download PDF

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Publication number
WO2020248559A1
WO2020248559A1 PCT/CN2019/125974 CN2019125974W WO2020248559A1 WO 2020248559 A1 WO2020248559 A1 WO 2020248559A1 CN 2019125974 W CN2019125974 W CN 2019125974W WO 2020248559 A1 WO2020248559 A1 WO 2020248559A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
sheet
lens
laser
Prior art date
Application number
PCT/CN2019/125974
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English (en)
French (fr)
Inventor
陈国平
Original Assignee
广州光联电子科技有限公司
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Publication of WO2020248559A1 publication Critical patent/WO2020248559A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/68—Details of reflectors forming part of the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Definitions

  • the present invention relates to the technical field of lighting devices, and more specifically, to an LD laser light source module.
  • LD Laser diode
  • the Chinese name is laser semiconductor, which is also called laser diode.
  • a laser is a device that amplifies light by induced emission.
  • Existing laser semiconductors are generally used in fiber optic communications, optical disks, laser printers, laser scanners, laser pointers (laser pointers) and other fields.
  • light source modules In the field of lighting, light source modules generally use LEDs as the light-emitting medium. LEDs are commonly called Semiconductor light emitting diode.
  • LEDs are commonly called Semiconductor light emitting diode.
  • lighting products using LD laser light source modules as light sources are relatively rare, and only traditional LEDs or metal halide lamps are used as luminescent media, which makes the lighting industry's luminescent media relatively single and can not meet people's needs. How to apply laser diodes to the flashlight lighting industry has become an urgent technical problem for technicians in the lighting field.
  • the present invention aims to overcome at least one of the above-mentioned drawbacks of the prior art and provide an LD laser light source module with long lighting distance, high brightness, and small volume, which is used to solve the technical problem of a single type of luminescent medium in the lighting industry. Provide more choices of luminous medium types.
  • the technical solution adopted by the present invention is an LD laser light source module, which includes an LD light source, and a reflective component and a powder sheet arranged in the light emitting direction of the LD light source.
  • the light emitted by the LD light source is blue light.
  • the LD light source is arranged in parallel, and the main optical axis of the powder sheet and the LD light source are not on the same straight line.
  • the powder sheet is coated with yellow phosphor.
  • the reflecting component is used to reflect the light emitted by the LD light source onto the powder sheet. The powder and blue light combine to become white light, which is reflected by the powder sheet.
  • the light source module of this technical solution uses LD laser diode as the light source.
  • the luminous power of the LD laser diode is high.
  • the brightness of an LD light source is the sum of the brightness of hundreds of LEDs. Therefore, the same number of LD light sources and the same number of LED light sources In comparison, LD light source has higher color brightness, longer irradiation distance and higher definition; and the light emitted by LD light source has better wavelength characteristics, direction collimation characteristics and phase characteristics, which greatly improves the light output Distance, brightness and clarity
  • the LD laser light source module composed of LD laser diodes is a new technical solution. Since only a single chip LD laser diode is used as the light-emitting medium, the manufactured LD laser light source module meets the brightness requirements. At the same time, the product is smaller and more convenient to carry.
  • the lens assembly and the diffusion sheet assembly are used to assist the LD light source to emit light, and improve the uniformity and concentration of the light.
  • the reflecting component includes a reflecting mirror, and the light emitted from the LD light source is reflected on the powder sheet through the reflecting mirror.
  • the reflection component further includes a prism, the prism is arranged on the light exit path between the reflector and the powder sheet, the light emitted from the LD light source is reflected by the reflector and converged on the prism, and the prism forms a right-angled light beam. The angle is reflected on the powder.
  • a first lens is provided on the light exit path between the LD light source and the reflecting mirror, and the first lens is used to concentrate and homogenize the light exiting the LD light source.
  • a first diffusion sheet is provided on the light exit path between the reflector and the prism, and the first diffusion sheet is used to increase the uniformity of the exit light.
  • a second lens is provided between the prism and the powder sheet, and the light beam reflected from the prism on the powder sheet and the light beam reflected from the powder sheet are homogenized by the second lens.
  • a second diffusion sheet is provided on the light exit path of the powder sheet, the second diffusion sheet is used to increase the uniformity of light exit, and the second diffusion sheet is provided on the back of the prism.
  • the light emitted by the LD light source is first projected on the first lens for homogenization, and then projected on the reflector through the first lens for reflection.
  • the incident angle of the reflector is equal to the exit angle; the reflected beam is first projected on
  • the first diffusion sheet is used to improve the uniformity of the light, and then is projected onto the prism through the first diffusion sheet, and the prism reflects the light beam on the powder sheet.
  • the prism mainly plays the role of light reflection, and the prism reflects the light beam at a 90 degree angle, and is reflected by the prism to change the direction of the light path.
  • the powder is coated with yellow phosphor, which acts as a yellow light reflector.
  • the blue light will interact with the yellow phosphor to become white light after being projected on the powder. Since the powder is a non-transmissive lens, the blue light beam is projected on the powder to become white light, and it will be reflected by the powder again.
  • the second lens and the second diffuser are successively arranged on the light exit channel of the white light to further homogenize the light beam and evenly transmit the light beam, so as to adjust the light beam and protect the lens.
  • the white light beam passes through the second lens and the second lens in turn.
  • the second diffuser is projected out.
  • the reflecting mirror is arranged on the light emitting line of the LD light source
  • the prism is arranged directly below the reflecting mirror and is on the same light emitting line as the powder sheet
  • the light emitting line where the powder sheet is located is the center line of the light emitting light path
  • the reflecting mirror is arranged obliquely to reflect the blue light from the LD light source on the prism, and the blue light is reflected on the powder sheet at a right angle through the prism, so that the color of the light becomes white, and then it is reflected by the powder sheet.
  • the inclination angle of the reflecting mirror is 45° ⁇ 40°, and the light beam is projected on the reflecting mirror and exits the prism in a vertical downward direction.
  • the tilt angle of the reflecting mirror is 45° ⁇ 0.15°.
  • it also includes a laser welding board, and the LD light source package is fixed on the laser welding board.
  • the laser welding plate not only plays a role of welding and fixing the LD light source, but also plays a role of heat dissipation.
  • the back of the laser welding board is additionally provided with radiator components, and the heat generated by the LD light source emits heat to the radiator components through the laser welding board.
  • the LD light source is a BANK laser.
  • a circuit board is provided on the back of the laser welding board, and the circuit board is connected with a power source, and the LD light source is electrically connected with the circuit board through the laser welding board to realize the circuit connection.
  • the lens holder further includes a lens holder, the first diffuser and the mirror are installed in the lens holder, and the lens holder is provided with a horizontal groove for installing the first diffuser and an inclined groove for installing the reflecting mirror.
  • the first diffuser is installed on the horizontal groove of the lens holder, and the reflector is installed on the inclined groove of the lens holder.
  • the inclined groove is inclined at 45 degrees with respect to the light path, so that the reflector reflects light at 45 degrees.
  • the lens holder after installing the first diffuser and the mirror constitutes a lens holder assembly, and the second diffuser is installed on the light-emitting surface of the lens holder.
  • each LD laser light source module has a corresponding product light output theory design standard maximum value A and product light output theory design standard minimum value C, and the second diffuser is adjusted in the up and down, left and right directions on the lens holder , Make the actual test value B measured by the product light fall within the range between the C value and the A value, and ensure that the product light test value is within the standard value range.
  • the prism is fixed on the back surface of the second diffusion sheet by dispensing glue, and the light beam is emitted from the back surface to the front surface of the second diffusion sheet.
  • cover plate which is arranged on the light-emitting surface of the lens holder to protect the lens holder and the second spreading sheet.
  • the cover plate has a ring structure and the inner ring is hollowed out for light output.
  • the laser connecting plate is provided with a D-shaped groove
  • the first lens is installed in the D-shaped groove
  • the light-emitting direction of the D-shaped groove is provided with an opening
  • the aperture of the opening is smaller than the beam diameter of the LD light source, thereby limiting the scattered around the LD light source Or the excess light passes through to achieve the purpose of selecting the best light without affecting the overall light-emitting effect.
  • the light output direction of the first lens in the D-shaped groove is consistent with the light output direction of the LD light source.
  • the first lens mainly plays the role of concentrating and homogenizing the light beam, so that the homogenized and concentrated light beam is emitted through the opening of the D-shaped groove .
  • the second lens is installed on the laser connection board by a glue dispensing method.
  • the powder sheet fixing plate is installed on the powder sheet fixing plate.
  • the powder fixing plate is installed on the laser connecting plate by glue dispensing.
  • the technical solution is to solder the powder sheet to the powder sheet fixing board by solder paste.
  • the two pins of the LD light source are provided with insulating sleeves. Since the pins of the LD light source are bare wires, the insulating sleeve can prevent short circuits, prevent static electricity, and provide insulation protection. Among them, the insulating sleeve can be installed on the pin of the LD light source through a production tool such as a hot blower.
  • the LD laser light source module of this technical solution uses LD laser diode as the light-emitting medium. Compared with the prior art light source module that uses LED light source as the light-emitting medium, it provides a new light source module design scheme for people Providing more light source module options not only expands the design field of light-emitting modules, but also satisfies people's needs.
  • LD laser diodes have better wavelength characteristics, direction collimation characteristics, phase characteristics and other effects, and LD laser diodes have high luminous power, high brightness, high definition and long luminous distance. Therefore, The use of LD laser diodes greatly improves the distance, brightness and clarity of the light.
  • the LD laser light source module of this technical solution uses a single chip LD laser diode as the light emitting medium, the LD laser light source module has a smaller volume and at the same time meets the requirements of brightness.
  • the LD laser light source module adopts the technical scheme of LD light source and the powder sheet arranged in parallel, which can effectively achieve the effect of white light, and can effectively save the internal installation volume and make the product smaller.
  • Figure 1 is a split structure diagram of the present invention.
  • Fig. 2 is a light path diagram of the present invention.
  • Figure 3 is a cross-sectional structure diagram of the present invention.
  • Fig. 4 is a three-dimensional structural view in the back direction of the invention.
  • Fig. 5 is a three-dimensional structural view of the light emitting surface direction of the present invention.
  • Fig. 6 is a schematic diagram of the three-dimensional structure of the present invention when the middle is separated.
  • Fig. 7 is a cross-sectional structure diagram in another direction of the present invention.
  • Figure 8 shows the actual test range measured by the product light.
  • an LD laser light source module includes an LD light source 10, and a lens assembly, a diffuser sheet assembly, a reflective assembly and a powder sheet 6 arranged in the light emitting direction of the LD light source.
  • the light is blue light
  • the powder sheet 6 is arranged in parallel with the LD light source 10
  • the powder sheet 6 is coated with yellow phosphor.
  • the yellow phosphor and blue light are combined to become white light
  • the reflective component is used to emit the LD light source 10
  • the light is reflected on the powder sheet 6, and then reflected by the powder sheet 6.
  • the powder sheet 6 is provided, and the powder sheet 6 is coated with yellow phosphor, so that the blue light emitted by the LD light source 10 is reflected on the powder sheet 6 and then becomes white light to be emitted. Since the powder sheet 6 is a non-transmissive lens, this embodiment is provided with a reflective component to reflect the light emitted by the LD light source 10 on the powder sheet 6, and then pass through the powder sheet 6 to match the light emitted by the original LD light source 10 The parallel light path emits the light from the direction.
  • the reflective assembly includes a reflector 8 and a prism 4.
  • the light emitted from the LD light source 10 is first reflected on the prism 4 through the reflector 8, and then reflected on the prism 4 through the prism 4.
  • the prism 4 is set directly below the reflector 8.
  • the incident angle of the reflector 8 when reflecting light is equal to the exit angle. Therefore, the reflector 8 is at an angle of 45° ⁇ 0.15° to the light path of the light, reflecting the light vertically downward , Project the light onto the prism 4.
  • the prism 4 reflects light at a right angle.
  • the prism 4 reflects the light at a right angle to the direction opposite to the light path of the original LD light source 10, thereby projecting the light beam It is on the powder sheet 6 and then reflected by the powder sheet 6.
  • a first lens 9 is provided on the light exit path between the LD light source 10 and the reflector 8, and a first diffuser 7 is provided on the light exit path between the reflector 8 and the prism 4.
  • a second lens 5 is provided between the prism 4 and the powder sheet 6, a second diffusion sheet 3 is provided on the light exit path of the powder sheet 6, and the second diffusion sheet 3 is provided on the back of the prism 4.
  • the light beam emitted by the LD light source 10 passes through the first lens 9, the reflecting mirror 8, the first diffusion sheet 7, the prism 4, the second lens 5, the powder sheet 6, the second lens 5 and the second diffusion sheet 3 in order to emit light.
  • the first lens 9 and the second lens 5 are used to concentrate and homogenize the light emitted from the LD light source; the first diffuser 7 and the second diffuser 3 are used to increase the uniformity of the emitted light.
  • the light beam reflected from the prism 4 on the powder sheet 6 and the light beam reflected from the powder sheet 6 are all homogenized by the second lens 5.
  • a laser welding board 16 is further included, and the LD light source 10 is packaged and fixed on the laser welding board 16.
  • the LD light source 10 is a BANK laser.
  • a circuit board 18 is provided on the back of the laser welding board 16, the circuit board 18 is connected to a power source, and the LD light source 10 is electrically connected with the circuit board 18 through the laser welding board 16 to realize a circuit connection.
  • a lens holder 11 is further included.
  • the first diffuser 7, the reflector 8 and the prism 4 are installed in the lens holder 11, and the second diffuser 3 is arranged in the lens holder 11.
  • a horizontal groove for installing the first diffuser 7 and an inclined groove for installing the reflector 8 are provided on the lens holder 11.
  • the inclined groove is inclined at 45 degrees with respect to the light exit path, so that the reflector 8 reflects light at 45 degrees.
  • the prism 4 is fixed on the back surface of the second diffusion sheet 3 by a glue dispensing method, and the light beam is emitted from the back surface of the second diffusion sheet 3 to the front surface.
  • FIG. 5 it also includes a cover plate 2, which is arranged on the light-emitting surface of the lens holder 11 to protect the lens holder 11 and the second diffuser 3, and the cover plate 2 is annular Structure, the inner ring is hollowed out for light.
  • the laser connection board 12 which is installed between the laser welding board 16 and the lens holder 11, and is installed on the back of the lens holder 11 by screws.
  • the front of the lens holder 11 is the light-emitting surface .
  • the first lens 9 and the second lens 5 are installed in the laser connecting plate, the laser connecting plate 12 is provided with a D-shaped groove, the first lens 9 is installed in the D-shaped groove, and the light emitting direction of the D-shaped groove is provided There are openings, and the diameter of the opening is smaller than the beam diameter of the LD light source, thereby restricting the scattered or excess light around the LD light source to pass through, achieving the purpose of preferential light extraction without affecting the overall light output effect.
  • the light output direction of the first lens 9 in the D-shaped groove is consistent with the light output direction of the LD light source.
  • the first lens 9 mainly plays a role of concentrating and homogenizing the light beam, so that the homogenized and concentrated light beam passes through the D-shaped groove. The mouth shoots out.
  • a powder sheet fixing plate 14 is further included, and the powder sheet 6 is installed on the powder sheet fixing plate 14.
  • the powder fixing plate 14 is installed on the laser connecting plate 12 by dispensing and fixing.
  • the technical solution is to weld the powder sheet 6 to the powder sheet fixing plate 14 by solder paste.
  • two pins of the LD light source 10 are provided with insulating sleeves 15. Since the pins of the LD light source 10 are bare wires, the insulating sleeve 15 can prevent short circuits, prevent static electricity, and provide insulation protection. Wherein, the insulating sleeve 15 can be installed on the pin of the LD light source 10 by a production tool such as a hot blower.
  • the second diffuser 3 is adjusted in the up and down and left and right directions on the lens holder 11 to make the light emission within the standard range.
  • each LD laser light source module has a corresponding product light output theory design standard maximum value A and product light output theory design standard minimum value C.
  • the second diffuser is adjusted on the lens holder 11 in the vertical and horizontal directions. , Make the actual test value B measured by the product light fall within the range between the C value and the A value, and ensure that the product light test value is within the standard value range.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Semiconductor Lasers (AREA)

Abstract

一种LD激光光源模组，包括LD光源(10)，以及依次设于LD光源(10)出光方向上的反射组件和粉片(6)，LD光源(10)发出的光是蓝光，粉片(6)与LD光源(10)平行设置，且粉片(6)上涂覆有黄色荧光粉，黄色荧光粉与蓝光结合变成白光，反射组件用于将LD光源(10)发出的光反射于粉片(6)上，再经粉片(6)反射出去。LD激光光源模组具有发光功率高、亮度高、清晰度高、发光距离远和体积小的有益效果。

Description

一种LD激光光源模组 技术领域
本发明涉及照明器件的技术领域，更具体地，涉及一种LD激光光源模组。
 背景技术
LD的英文全称为Laser diode，中文名称为激光半导体，也被称作激光二极管。激光是一种通过诱导放出来将光放大的器件。现有的激光半导体一般应用于光纤通信、光盘、激光打印机、激光扫描器、激光指示器（激光笔）等领域，而在照明领域中，光源模组一般都是采用LED作为发光介质，LED俗称半导体发光二极管。在手电照明市场上，采用LD激光光源模组作为光源的照明产品比较少见，只使用传统的LED或金卤灯作为发光介质，使照明行业的发光介质种类比较单一，达不到人们的需求。如何将激光二极管应用于手电照明行业，成为照明领域的技术人员迫切需要解决的技术问题。
 技术问题
本发明旨在克服上述现有技术的至少一种缺陷，提供一种照明距离长、亮度高、体积小的LD激光光源模组，用于解决照明行业的发光介质种类单一的技术问题，为人们提供更多的发光介质种类选择。
 技术解决方案
本发明采取的技术方案是，一种LD激光光源模组，包括LD光源，以及设于LD光源出光方向上的反射组件和粉片，所述LD光源发出的光是蓝光，所述粉片与LD光源平行设置，且粉片与LD光源的主光轴不在同一直线上，所述粉片上涂覆有黄色荧光粉，所述反射组件用于将LD光源发出的光反射于粉片上，黄色荧光粉与蓝光结合变成白光，再经粉片反射出去。
本技术方案的光源模组采用LD激光二极管作为光源，LD激光二极管的发光功率高，一颗LD光源的亮度是几百个LED亮度的总和，因此，同等数量的LD光源与同等数量的LED光源比较，LD光源具有更高的颜色亮度、更远的照射距离以及更高的清晰度；且LD光源发出的光具有更好的波长特性、方向准直特性和相位特性等效果，大大提高了出光的距离、亮度以及清晰度。
另一方面，由LD激光二极管组成的LD激光光源模组作为一种新的技术方案，由于只采用了单一芯片的LD激光二极管作为发光介质，因此制得的LD激光光源模组在满足亮度要求的同时，产品的体积更小，携带更方便。
进一步地，还包括设于LD光源出光方向上的透镜组件和扩散片组件；所述透镜组件、扩散片组件用于辅助LD光源出光，提高出光的均匀性和集中度。
进一步地，所述反射组件包括反射镜，LD光源的出光光线通过反射镜反射于粉片上。
进一步地，所述反射组件还包括棱镜，所述棱镜设于反射镜与粉片之间的出光光路上，LD光源的出光光线经反射镜反射后，汇聚于棱镜上，棱镜将光束呈直角的角度反射于粉片上。
进一步地，所述LD光源与反射镜之间的出光光路上设有第一透镜，所述第一透镜用于将LD光源的出光光线集中匀化。
进一步地，所述反射镜与棱镜之间的出光光路上设有第一扩散片，所述第一扩散片用于增加出光光线的均匀性。
进一步地，所述棱镜与粉片之间设有第二透镜，从棱镜反射于粉片上的光束，以及从粉片反射出去的光束均通过第二透镜匀化。
进一步地，所述粉片的出光光路上设有第二扩散片，所述第二扩散片用于增加出光的均匀性，所述第二扩散片设于棱镜的背面。
本技术方案中，LD光源发出的光线先投射到第一透镜上进行匀光，再透过第一透镜投射到反射镜上，进行反射，反射镜的入射角等于出射角；反射光束先投射于第一扩散片上，以提高出光的均匀性，再透过第一扩散片投射于棱镜上，棱镜将光束反射于粉片上。棱镜主要起到光反射的作用，且棱镜以90度角反射光束，通过棱镜反射，从而改变光路的方向。粉片上涂覆有黄色荧光粉，作为黄色光反射镜，由于LD光源的出光颜色是蓝色的，而蓝光投射于粉片上后，会与黄色荧光粉相互作用变成白光。由于粉片属于非透光的镜片，因此，蓝光光束投射于粉片上变成白光后，会由粉片再次反射出去。而第二透镜和第二扩散片依次设于白光的出光通道上，用于进一步匀化光束，将光束均匀透出，起到调节光束、保护镜片的作用，白光光束依次经过第二透镜和第二扩散片后投射出去。
进一步地，所述反射镜设于LD光源的出光直线上，所述棱镜设于反射镜的正下方，且与粉片处于同一出光直线上，粉片所处的出光直线为出光光路中心线，所述反射镜通过倾斜设置，将LD光源的蓝光光线反射于棱镜上，通过棱镜将蓝光光线呈直角反射于粉片上，使出光颜色变为白色，再通过粉片反射出去。
进一步地，所述反射镜的倾斜角度是45°±40°，光束投射于反射镜后，呈垂直向下方向射出于棱镜上。
进一步地，所述反射镜的倾斜角度是45°±0.15°。
进一步地，还包括激光焊接板，所述LD光源封装固定于激光焊接板上。
本技术方案中，所述激光焊接板除了起到焊接固定LD光源的作用外，还起到散热的作用。激光焊接板的背面另设有散热器元器件，LD光源发光产生的热量通过激光焊接板向散热器元器件散热。所述LD光源为BANK激光器。
进一步地，所述激光焊接板的背面设有电路板，电路板与电源连接，LD光源通过激光焊接板与电路板电联接，实现接通电路。
进一步地，还包括镜片支架，所述第一扩散片和反射镜安装在镜片支架内，所述镜片支架上设置有用于安装第一扩散片的水平槽和用于安装反射镜的倾斜槽。
本技术方案中，所述第一扩散片安装于镜片支架的水平槽上，所述反射镜安装于镜片支架的倾斜槽上。倾斜槽相对于出光光路呈45度倾斜设置，使得反射镜呈45度反射出光。
进一步地，安装第一扩散片和反射镜后的镜片支架组成镜片支架组件，所述第二扩散片安装于镜片支架的出光面上。
进一步地，每个LD激光光源模组均有对应的产品出光理论设计标准最大值A和产品出光理论设计标准最小值C，通过在镜片支架上对第二扩散片进行上下、左右方向上的调整，使产品出光测得的实际测试值B处于C值和A值之间的范围内，保证产品出光的测试值在标准值范围内。
进一步地，所述棱镜通过点胶固定方式安装于第二扩散片的背面，光束从第二扩散片的背面向正面出光。
进一步地，还包括盖板，所述盖板盖设于镜片支架的出光面上，用来保护镜片支架以及第二扩撒片，盖板呈环状结构，内环挖空用于出光。
进一步地，还包括激光连接板，所述激光连接板安装于激光焊接板与镜片支架之间，并通过螺丝安装于镜片支架的背面，镜片支架的正面为出光面。激光连接板内设有D型槽，所述第一透镜安装于D型槽内，D型槽的出光方向上设有开口，开口的口径比LD光源的光束直径小，从而限制LD光源周围零散或多余的光线通过，达到择优取光的目的，且不影响整体的出光效果。其中，第一透镜在D型槽内的出光方向与LD光源的出光方向一致，第一透镜主要起到集中和匀化光束的作用，使匀化集中后的光束再通过D型槽的开口射出。
进一步地，所述第二透镜通过点胶固定方式安装于激光连接板上。
进一步地，还包括粉片固定板，所述粉片安装于粉片固定板上。所述粉片固定板通过点胶固定方式安装于激光连接板上。其中，本技术方案是通过锡膏把粉片焊接于粉片固定板上。
进一步地，LD光源的两个引脚上设有绝缘套。由于LD光源的引脚是裸线，因此，设置绝缘套可以起到防止短路、防静电和绝缘保护的作用。其中，绝缘套可通过热吹风机等生产工具安装于LD光源的引脚上。
 有益效果
与现有技术相比，本发明的有益效果为：
（1）本技术方案的LD激光光源模组采用LD激光二极管作为发光介质，相对于现有技术采用LED光源作为发光介质的光源模组，提供了一种新的光源模组设计方案，为人们提供更多的光源模组选择，既扩展了发光模组的设计领域，又更满足了人们的需求。
（2）LD激光二极管相对于LED发光二极管具有更好的波长特性、方向准直特性、相位特性等效果，且LD激光二极管的发光功率高、亮度高、清晰度高和发光距离远，因此，采用LD激光二极管大大提高了出光的距离、亮度以及清晰度。
（3）本技术方案的LD激光光源模组由于采用的是单一芯片的LD激光二极管作为发光介质，因此LD激光光源模组的体积更小，且同时满足亮度的要求。
（4）本LD激光光源模组采用LD光源与粉片平行设置的技术方案，既能有效达到出白光的效果，又能有效节省了内部的安装体积，使产品的体积更小。
 附图说明
图1为本发明的拆分结构图。
图2为本发明的光路图。
图3位本发明的横截面结构图。
图4为本发明背面方向的立体结构图。
图5为本发明出光面方向的立体结构图。
图6为本发明中间分开时的立体结构示意图。
图7为本发明另一方向上的横截面结构图。
图8为产品出光测得的实际测试范围图。
 本发明的实施方式
本发明附图仅用于示例性说明，不能理解为对本发明的限制。为了更好说明以下实施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对于本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。
实施例 1
如图1和图2所示，一种LD激光光源模组，包括LD光源10，以及设于LD光源出光方向上的透镜组件、扩散片组件、反射组件和粉片6，所述LD光源发出的光是蓝光，所述粉片6与LD光源10平行设置，且粉片6上涂覆有黄色荧光粉，黄色荧光粉与蓝光结合变成白光，所述反射组件用于将LD光源10发出的光反射于粉片6上，再经粉片6反射出去。
由于LD光源10发出的光是蓝光，而蓝光与黄光结合会变成白光。因此，本实施例通过设置粉片6，粉片6上涂覆黄色荧光粉，使LD光源10发出的蓝光反射于粉片6后，变成白光射出。由于粉片6属于非透光的镜片，因此，本实施例通过设置反射组件，使LD光源10发出的光线反射于粉片6上后，再通过粉片6以与原LD光源10发出的光线平行的光路出光方向射出。
如图2和图3所示，本实施例中，所述反射组件包括反射镜8和棱镜4，LD光源10的出光光线先通过反射镜8反射于棱镜4上，再通过棱镜4反射于粉片6上。其中，棱镜4设于反射镜8的正下方，反射镜8反射光线时的入射角等于出射角，因此，反射镜8是以与出光光路呈45°±0.15°的角度，垂直向下反射光线，将光线投射与棱镜4上。而棱镜4是以直角的角度反射光线，因此，反射镜8将光束投射于棱镜4后，棱镜4以直角的角度，向与原LD光源10的出光光路相反的方向反射出光，从而将光束投射于粉片6上，再通过粉片6反射出去。
本实施例中，所述LD光源10与反射镜8之间的出光光路上设有第一透镜9，所述反射镜8与棱镜4之间的出光光路上设有第一扩散片7，所述棱镜4与粉片6之间设有第二透镜5，所述粉片6的出光光路上设有第二扩散片3，所述第二扩散片3设于棱镜4的背面。其中LD光源10发出的光束依次经过第一透镜9、反射镜8、第一扩散片7、棱镜4、第二透镜5、粉片6、第二透镜5和第二扩散片3出光。所述第一透镜9和第二透镜5用于将LD光源的出光光线集中匀化；所述第一扩散片7和第二扩散片3用于增加出光光线的均匀性。从棱镜4反射于粉片6上的光束，以及从粉片6反射出去的光束均通过第二透镜5匀化。
如图4和如5所示，本实施例中，还包括激光焊接板16，所述LD光源10封装固定于激光焊接板16上。所述LD光源10为BANK激光器。所述激光焊接板16的背面设有电路板18，电路板18与电源连接，LD光源10通过激光焊接板16与电路板18电联接，实现接通电路。
如图6和图7所示，本实施例中，还包括镜片支架11，所述第一扩散片7、反射镜8和棱镜4安装在镜片支架11内，所述第二扩散片3设于镜片支架11的出光面上，所述镜片支架11上设置有用于安装第一扩散片7的水平槽和用于安装反射镜8的倾斜槽。倾斜槽相对于出光光路呈45度倾斜设置，使得反射镜8呈45度反射出光。其中，所述棱镜4通过点胶固定方式安装于第二扩散片3的背面，光束从第二扩散片3的背面向正面出光。
如图5所示，其中，还包括盖板2，所述盖板2盖设于镜片支架11的出光面上，用来保护镜片支架11以及第二扩撒片3，盖板2呈环状结构，内环挖空用于出光。
本实施例中，还包括激光连接板12，所述激光连接板12安装于激光焊接板16与镜片支架11之间，并通过螺丝安装于镜片支架11的背面，镜片支架11的正面为出光面。所述第一透镜9和第二透镜5安装于激光连接板内，激光连接板12内设有D型槽，所述第一透镜9安装于D型槽内，D型槽的出光方向上设有开口，开口的口径比LD光源的光束直径小，从而限制LD光源周围零散或多余的光线通过，达到择优取光的目的，且不影响整体的出光效果。其中，第一透镜9在D型槽内的出光方向与LD光源的出光方向一致，第一透镜9主要起到集中和匀化光束的作用，使匀化集中后的光束再通过D型槽的开口射出。
如图6和图7所示，本实施例中，还包括粉片固定板14，所述粉片6安装于粉片固定板14上。所述粉片固定板14通过点胶固定方式安装于激光连接板12上。其中，本技术方案是通过锡膏把粉片6焊接于粉片固定板14上。
本实施例中，LD光源10的两个引脚上设有绝缘套15。由于LD光源10的引脚是裸线，因此，设置绝缘套15可以起到防止短路、防静电和绝缘保护的作用。其中，绝缘套15可通过热吹风机等生产工具安装于LD光源10的引脚上。
如图8所示，本实施例中，通过对第二扩散片3在镜片支架11进行上下、左右方向上的调整，使出光处于标准范围。其中，每个LD激光光源模组均有对应的产品出光理论设计标准最大值A和产品出光理论设计标准最小值C，通过在镜片支架11上对第二扩散片进行上下、左右方向上的调整，使产品出光测得的实际测试值B处于C值和A值之间的范围内，保证产品出光的测试值在标准值范围内。
显然，本发明的上述实施例仅仅是为清楚地说明本发明技术方案所作的举例，而并非是对本发明的具体实施方式的限定。凡在本发明权利要求书的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。

Claims (20)

  1. 一种LD激光光源模组，其特征在于，包括LD光源，以及设于LD光源出光方向上的反射组件和粉片，所述LD光源发出的光是蓝光，所述粉片与LD光源平行设置，且粉片与LD光源的主光轴不在同一直线上，所述粉片上涂覆有黄色荧光粉，所述反射组件用于将LD光源发出的光反射于粉片上，黄色荧光粉与蓝光结合变成白光，再经粉片反射出去。
  2. 根据权利要求1所述的LD激光光源模组，其特征在于，还包括设于LD光源出光方向上的透镜组件和扩散片组件；所述透镜组件、扩散片组件用于辅助LD光源出光，提高出光的均匀性和集中度。
  3. 根据权利要求2所述的LD激光光源模组，其特征在于，所述反射组件包括反射镜，LD光源的出光光线通过反射镜反射于粉片上。
  4. 根据权利要求3所述的LD激光光源模组，其特征在于，所述反射组件还包括棱镜，所述棱镜设于反射镜与粉片之间的出光光路上，LD光源的出光光线经反射镜反射后，汇聚于棱镜上，棱镜将光束反射于粉片上。
  5. 根据权利要求2所述的LD激光光源模组，其特征在于，所述透镜组件包括第一透镜，所述第一透镜设于LD光源与反射组件之间的出光光路上，所述第一透镜用于将LD光源的出光光线集中匀化。
  6. 根据权利要求2所述的LD激光光源模组，其特征在于，所述扩散片组件包括第一扩散片，所述第一扩散片设于反射组件的出光光路上，所述第一扩散片用于增加出光光线的均匀性。
  7. 根据权利要求2所述的LD激光光源模组，其特征在于，所述透镜组件还包括第二透镜，所述第二透镜设于反射组件与粉片之间的出光光路上，从反射组件反射于粉片上的光束，以及从粉片反射出去的光束均通过第二透镜匀化。
  8. 根据权利要求2所述的LD激光光源模组，其特征在于，所述扩散片组件还包括第二扩散片，所述第二扩散片设于粉片的出光光路上，所述第二扩散片用于增加出光的均匀性，所述第二扩散片设于反射组件的背面。
  9. 根据权利要求4所述的LD激光光源模组，其特征在于，所述反射镜设于LD光源的出光直线上，所述棱镜设于反射镜的正下方，且与粉片处于同一出光直线上，粉片所处的出光直线为出光光路中心线，所述反射镜通过倾斜设置，将LD光源的蓝光光线反射于棱镜上，通过棱镜将蓝光光线呈直角反射于粉片上，使出光颜色变为白色，再通过粉片反射出去。
  10. 根据权利要求9所述的LD激光光源模组，其特征在于，所述反射镜的倾斜角度是45°±40°，光束投射于反射镜后，呈垂直向下方向射出于棱镜上。
  11. 根据权利要求10所述的LD激光光源模组，其特征在于，所述反射镜的倾斜角度是45°±0.15°，光束投射于反射镜后，呈垂直向下方向射出于棱镜上。
  12. 根据权利要求1所述的LD激光光源模组，其特征在于，所述反射组件包括反射片和棱镜，所述扩散片组件包括第一扩散片和第二扩散片，其中，所述反射片设于LD光源与第一扩散片之间，用于将LD光源的出光光线反射于棱镜上，所述棱镜设于第一扩散片与粉片之间，用于对反射于棱镜上的光线反射于粉片上，所述第二扩散片设于粉片的出光光路上，用于对粉片反射出去的光线进行匀化。
  13. 根据权利要求10所述的LD激光光源模组，其特征在于，还包括镜片支架，所述扩散片组件和反射组件安装在镜片支架内，所述镜片支架上设置有用于安装第一扩散片的水平槽和用于安装反射镜的倾斜槽。
  14. 根据权利要求1所述的LD激光光源模组，其特征在于，所述透镜组件包括第一透镜和第二透镜，所述第一透镜设于LD光源与反射组件之间，所述第二透镜设于反射组件与粉片之间，用于对出光光束进行集中和匀化。
  15. 根据权利要求12所述的LD激光光源模组，其特征在于，还包括激光连接板，所述透镜组件安装于激光连接板内。
  16. 根据权利要求13所述的LD激光光源模组，其特征在于，激光连接板内设有D型槽，所述第一透镜安装于D型槽内，D型槽的出光方向上设有开口，开口的口径比LD光源的光束直径小，从而限制LD光源周围零散或多余的光线通过，其中，第一透镜在D型槽内的出光方向与LD光源的出光方向一致，第一透镜主要起到集中和匀化光束的作用，使匀化集中后的光束再通过D型槽的开口射出。
  17. 根据权利要求1所述的LD激光光源模组，其特征在于，还包括粉片固定板，所述粉片安装于粉片固定板上。
  18. 根据权利要求1所述的LD激光光源模组，其特征在于，还包括激光焊接板，所述LD光源安装于激光焊接板上。
  19. 根据权利要求16所述的LD激光光源模组，其特征在于，所述激光焊接板的背面设有电路板，电路板与电源连接，LD光源通过激光焊接板与电路板电联接，实现接通电路。
  20. 根据权利要求11所述的LD激光光源模组，其特征在于，还包括盖板，所述盖板盖设于镜片支架的出光面上，盖板呈环状结构，内环挖空用于出光。
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