WO2020103713A1 - Lighting device, and lamp - Google Patents

Lighting device, and lamp

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Publication number
WO2020103713A1
WO2020103713A1 PCT/CN2019/116985 CN2019116985W WO2020103713A1 WO 2020103713 A1 WO2020103713 A1 WO 2020103713A1 CN 2019116985 W CN2019116985 W CN 2019116985W WO 2020103713 A1 WO2020103713 A1 WO 2020103713A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
lighting device
laser
exit channel
color
Prior art date
Application number
PCT/CN2019/116985
Other languages
French (fr)
Chinese (zh)
Inventor
张贤鹏
陈晨
李屹
Original Assignee
深圳市绎立锐光科技开发有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市绎立锐光科技开发有限公司 filed Critical 深圳市绎立锐光科技开发有限公司
Publication of WO2020103713A1 publication Critical patent/WO2020103713A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/16—Laser light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • 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 application relates to the technical field of lighting, in particular to a lighting device and a lamp.
  • a short-wavelength laser is generally used to irradiate the wavelength conversion element to generate long-wavelength fluorescence, and then (near) white light is emitted after being mixed.
  • the laser has the characteristics of high energy and strong directivity. Using the laser to directly illuminate pedestrians, vehicles or roads outside the lamp will cause serious safety problems. Therefore, it is necessary to irradiate laser light on the phosphor for scattering and wavelength conversion to generate (near) white light with moderate energy before it can be used as illumination light for a vehicle headlight or the like.
  • the inventor of the present application has found in long-term research and development that in order to avoid direct irradiation of the laser outside the lamp, it is usually necessary to firmly fix the phosphor on the mounting body close to the laser light source to prevent it from falling off or being damaged. However, the phosphor will inevitably appear abnormal.
  • a through hole or an outlet penetrating the reflector can be formed on the reflector irradiated by the laser, so that the laser irradiates the outside of the back of the reflector to avoid High-energy laser light with strong directivity is directly emitted outside the lamp through the reflector.
  • a vehicle's lamp compartment is usually equipped with a large number of parts, most of which reflect light.
  • a light passing portion may be designed at the intersection of the extension of the optical path before the laser contacts the phosphor and the reflector, and the laser light passing through the light passing portion may be limited to a specially designed light-sealing portion to avoid laser emission.
  • these schemes all consume light passing through the light-passing portion internally, and cannot serve as a warning.
  • the technical problem mainly solved by the present application is to provide a lighting device and a lamp to realize the warning function of the lighting device.
  • a technical solution adopted by the present application is to provide an illuminating device, the illuminating device at least includes: a light source for emitting laser light; a fluorescent sheet is provided on the light emitting side of the light source for wavelength laser Converts or scatters laser light; a light reflecting device, including: a reflective sheet, is provided on the light emitting side of the fluorescent sheet, and is used to reflect light from the fluorescent sheet to the first light exit channel for exit, and the reflective sheet is provided with a light passing portion The passing part is provided corresponding to the fluorescent sheet; the light protecting part is provided on the side of the reflector away from the fluorescent sheet, and the light protecting part is provided with a second light exit channel, and the light entrance of the second light exit channel corresponds to the light passing part; In the warning mode, the laser light is incident on the second light exit channel through the light passing portion and exits.
  • the second light exit channel includes a transparent substrate
  • the reflective sheet includes a reflective layer covering the side of the transparent substrate close to the light source.
  • the light-shielding portion further includes a light-shielding layer covering the side of the transparent substrate away from the reflective layer.
  • the light-shielding layer is used to absorb or convert wavelength of laser light incident on the light-shielding layer.
  • the light reflection device further includes a photodetector embedded in the transparent substrate, and the photodetector is used to detect the light intensity of the laser light incident on the transparent substrate.
  • the second light exit channel includes a light introduction part, a light scattering part, and a wavelength conversion part that are sequentially provided along the optical path direction, and the light introduction part is connected to the light passing part.
  • the light reflection device further includes a first photodetector provided in the light introduction part, a second photodetector provided in the light scattering part, and a third photodetector provided in the wavelength conversion part.
  • the lighting device further includes an optical element disposed in the second light exit channel, and configured to form patterned exit light from the light exiting from the light conversion portion.
  • the wavelength conversion unit performs wavelength conversion on the light incident on the second light exit channel so that the light exiting through the second light exit channel is the light of the first color and passes the first light
  • the light exiting the channel is the light of the second color, the first color is different from the second color
  • the fluorescent sheet converts the wavelength of the laser so that the light exiting through the first light exit channel is the light of the third color
  • the light emitted through the second light channel is the light of the fourth color, and the third color is the same as the fourth color.
  • the lighting device further includes: a condenser lens, disposed between the light source and the fluorescent sheet, for condensing and shaping the laser light, and then exiting to the fluorescent sheet; and a heat dissipating device, disposed on the side of the light source.
  • another technical solution adopted by the present application is to provide a vehicle lamp including the above-mentioned lighting device.
  • the lighting device of the embodiment of the present application at least includes: a light source for emitting laser light; a fluorescent sheet is provided on the light emitting side of the light source for wavelength conversion of the laser light or The laser light is scattered;
  • the light reflection device includes: a reflective sheet, which is arranged on the light emitting side of the fluorescent sheet, and is used to reflect the light from the fluorescent sheet to the first light exit channel to exit, and the reflective sheet is provided with a light passing portion, the light passing portion and Fluorescent film is set correspondingly; the light protection part is set on the side of the reflector away from the fluorescent film.
  • the light protection part is provided with a second light exit channel, and the light entrance of the second light exit channel is corresponding to the light passing part; in the warning mode
  • the laser light is incident on the second light exit channel through the light passing portion and exits.
  • the laser light emitted by the light source is converted or scattered by the wavelength of the fluorescent sheet, and then reflected by the reflective sheet to the outside of the lighting device, so that the lighting device works in the lighting mode; Or if it is damaged and cannot normally scatter the laser light and convert the wavelength, the laser light emitted by the light source will radiate the laser light through the light passing portion on the reflector and the second light exit channel, which can realize the warning function to make the lighting device work in the warning mode.
  • FIG. 1 is a schematic structural diagram of a first embodiment of a lighting device of the present application
  • FIG. 2 is a schematic structural diagram of a second embodiment of a lighting device of the present application.
  • FIG. 3 is a schematic structural diagram of a third embodiment of a lighting device of the present application.
  • FIG. 4 is a schematic structural diagram of a light reflecting device in a fourth embodiment of the lighting device of the present application.
  • FIG. 5 is a schematic structural view of a light reflecting device in a fifth embodiment of the lighting device of the present application.
  • FIG. 6 is a schematic structural diagram of an embodiment of a lamp of the present application.
  • orientation or positional relationship indicated in the description and claims of the present application and the terms “inner” and “outer” in the above drawings is based on the orientation or positional relationship shown in the drawings, or is habitually placed when the product of the application is used
  • the orientation or positional relationship is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limit.
  • FIG. 1 is a schematic structural diagram of a first embodiment of the lighting device of the present application.
  • the lighting device 101 of this embodiment at least includes: a light reflecting device 103, a light source 104, and a fluorescent sheet 105.
  • the light source 104 is used to emit laser light;
  • the fluorescent sheet 105 is disposed on the light emitting side of the light source 104, and is used to convert the wavelength of the laser light or generate the laser light.
  • the light reflecting device 103 includes a reflective sheet 106 and a light protection part 107, the reflective sheet 106 is provided on the light emitting side of the fluorescent sheet 105, and is used to reflect the light from the fluorescent sheet 105 to the first light exit channel exit 102, the reflective sheet 106 A light-passing portion 108 is provided, and the light-passing portion 108 is provided corresponding to the fluorescent sheet 105; the light-shielding section 107 is disposed on the side of the reflective sheet 106 away from the fluorescent sheet 105, and the light-shielding section 107 is provided with a second light exit channel 109, a second The light entrance of the light exit channel 109 is corresponding to the light passing portion 108; in the warning mode, the laser light enters the second light exit channel 109 through the light passing portion 108 and exits.
  • the light source 104 in this embodiment may be a semiconductor laser element, such as a laser element for generating blue laser light (for example, about 450 nm) or near ultraviolet light (for example, about 405 nm).
  • the light source may also be a laser element or other light-emitting element for generating other wavelengths.
  • the fluorescent sheet 105 of this embodiment can scatter and wavelength convert at least a part of the laser light emitted by the light source 104 to form (near) white light.
  • the fluorescent sheet 105 of this embodiment may be a plate-like or layered material formed by a composite body of YAG doped with rare earth elements such as cerium Ce and alumina Al 2 O 3 and having upper and lower surfaces substantially parallel.
  • the thickness of the fluorescent sheet 105 can be set according to the target chromaticity and heat dissipation requirements of the lighting device 101.
  • the reflective sheet 106 of this embodiment may be arched, covering the range from the side of the light source 104 to the upper side (the light exit side), so as to reflect the (near) white light generated by the light source 104 to the outside of the lighting device 101 to achieve The lighting function of the lighting device 101.
  • the light passing portion 108 is an opening provided on the reflective sheet 106.
  • the opening is located at the intersection of the extension path of the optical path before the reflective sheet 106 and the light source 104 emit laser light to illuminate the fluorescent sheet 105.
  • the shape of the light passing portion 108 may be a rectangle, a circle, or an ellipse.
  • the shape and size of the light passing portion 108 may be set according to the shape and margin of the laser spot emitted by the light source 104 when the fluorescent sheet 105 operates abnormally. Calculated with the smallest circumscribed circle diameter), it is about several millimeters, which is much smaller than the size of the reflector 106.
  • the laser light emitted by the light source 104 is wavelength-converted or scattered by the fluorescent sheet 105, and then reflected by the reflective sheet 106 to the outside of the lighting device 101, so that the lighting device 101 works in the lighting mode;
  • the fluorescent sheet 105 is detached or damaged from the arrangement position and cannot normally scatter the laser light and convert the wavelength
  • the laser light emitted by the light source 104 radiates the laser light through the light passing portion 108 and the second light exit channel 109 on the reflective sheet 106, which can
  • the warning function enables the lighting device 101 to work in the warning mode, and at the same time prevents the laser light from being directly reflected by the reflector 106 to the outside of the lighting device 101 to avoid causing safety problems.
  • the second light exit channel 109 of this embodiment includes: a light introduction part 110, a light scattering part 111, and a wavelength conversion part 112 that are sequentially provided along the light path direction, wherein the light introduction part 110 is connected to the light passing part 108, The light scattering part 111 is provided on the side of the light introduction part 110 away from the light passing part 108, and the light scattering part 111 is located between the light introduction part 110 and the wavelength conversion part 112.
  • the light introduction part 110, the light scattering part 111, and the wavelength conversion part 112 of this embodiment constitute a laser protection optical path of the lighting device 101.
  • the laser light emitted by the light source 104 enters the light introducing part 110 through the light passing part 108, and the light introducing part 110 deflects the incident light passing through the light passing part 108, on the one hand, the incident light can be avoided
  • the light passing portion 108 enters the lighting device 101 again, and on the other hand, the incident light can be guided to the light scattering portion 111.
  • the light introduction part 110 includes at least a refractive device, which may be a plane mirror coated with aluminum Al or silver Ag on the back or a total reflection TIR device.
  • the light scattering part 111 of this embodiment is in the shape of a meandering duct to reflect and scatter the light entering from the light introduction part 110 to avoid the second light exit channel 109 from directly emitting unscattered light.
  • a diffuse reflection layer may be coated on the inner surface of the light scattering part to scatter the light entering from the light introduction part.
  • the wavelength conversion section 112 of this embodiment uses the same or different fluorescent material as the fluorescent sheet 105 to scatter the light incident from the light scattering section 111 and convert the light wavelength.
  • the fluorescent structure and material in the wavelength conversion section 112 preferentially flexibly illuminate the optical fiber.
  • Fluorescent materials are preferred to have two or more emission bands or broad emission spectrum, such as Ba 2 Mg (BO 3 ) 2 : Ce 3+ , Eu 2+ , Na +, etc.
  • the specific conversion wavelength can be based on the warning The color is set, and the warning color is preferably red.
  • the concentration and length of the fluorescent material can be set according to the situation where the fluorescent sheet 105 falls off or is damaged, the laser light emitted by the light source 104 directly enters the wavelength conversion section 112, and after conversion by the wavelength conversion section 112 reaches a safety standard and a certain margin is considered .
  • the (near) white light emitted by the light source 104 is projected out of the lighting device 101 through the reflective sheet 106 to realize the lighting function. Since the size of the light passing portion 108 is much smaller than the size of the reflector 106, the (near) white light entering the second light exit channel 109 accounts for a small proportion of the (near) white light emitted by the light source 104 at this time, and the second light exits The (near) white light in the channel 109 is dissipated after passing through the light scattering part 111 and the wavelength conversion part 112.
  • the laser light emitted from the light source 104 directly enters the second light exit channel 109 through the light passage portion 108, passes through the light introduction portion 110, the light scattering portion 111, and the wavelength conversion portion After 112, it is converted into warning lights of different colors to be noticed by users, and the warning function is realized.
  • the lighting device 101 of this embodiment further includes a condensing lens 113, which is disposed between the light source 104 and the fluorescent sheet 105, and is used for condensing and shaping the laser light and exiting to the fluorescent sheet 105.
  • a condensing lens 113 which is disposed between the light source 104 and the fluorescent sheet 105, and is used for condensing and shaping the laser light and exiting to the fluorescent sheet 105.
  • the lighting device 101 of this embodiment further includes a cavity 114.
  • the condenser lens 113 and the fluorescent sheet 105 can be fixed on the side wall of the cavity 114.
  • the cavity 114 can avoid the light source 104 The emitted laser leaked.
  • the light source 104 of this embodiment is disposed at the bottom of the cavity 114 through a fixing base (not shown), the condenser lens 113 is disposed at the middle of the cavity 114, the fluorescent sheet 105 is disposed at the top of the cavity 114, and the laser light emitted by the light source 104 It exits from the bottom of the cavity 114 to the top.
  • the overall shape and size of the cavity 114, the fixing base, etc. in this embodiment can be set according to the spot size of the lighting device 101 and its internal space.
  • the lighting device 101 of this embodiment further includes a heat dissipation device 115 disposed on the side of the light source 104 for dissipating waste heat generated when the light source 104 operates.
  • the heat dissipation device 115 is provided on the side where the light source 104 is provided and the side away from the light emitting side of the lighting device 101.
  • the heat dissipation device 115 of this embodiment is a heat sink. In other embodiments, the heat dissipation device 115 may also be other heat dissipation substrates or semiconductor cooling fins.
  • the lighting device 101 of this embodiment further includes a structural member 116 that fixes the side wall of the cavity 114 to the heat dissipation device 115 and other internal structures of the lighting device 101 to avoid side shift or tilt.
  • the present application further proposes a lighting device of the second embodiment.
  • the light reflecting device 202 in the lighting device 201 of this embodiment further includes: a first light detector 203 on the basis of the light reflecting device 103 , A second photodetector 204 and a third photodetector 205, wherein the first photodetector 203 is provided in the light introduction part 206, the second photodetector 204 is provided in the light scattering part 207, and the third photodetector 205 is provided in Wavelength conversion unit 208.
  • the first photodetector 203 is provided on the side of the light introduction part 206
  • the second photodetector 204 is provided on the side of the light scattering part 207
  • the third photodetector 205 is provided on the side of the wavelength conversion part 208.
  • the first light detector 203 and the second light detector 204 may be light intensity detectors.
  • the first light detector 203 and the second light detector 204 detect a relatively weak (near) white light in the second light exit channel (not shown in the figure), it is determined that the fluorescent sheet 209 is working normally; if the first light When the detector 203 and the second light detector 204 detect that there is relatively strong light in the second light exit channel, the fluorescent sheet 209 is judged to be off or damaged, and the user is prompted to check the lighting device 201 and cut off the driving current of the light source 210 to avoid safety Problem; the third light detector 205 preferentially selects the light wavelength detector.
  • the third light detector 205 detects relatively weak fluorescence excited by (near) white light, it is judged that the fluorescent sheet 209 works normally; if the third light detection The detector 205 detects the relatively strong fluorescence obtained by the laser excitation, and then determines that the fluorescent sheet 209 is detached or damaged, prompting the user to check the lighting device 201 and cut off the driving current of the light source 210 to avoid safety problems.
  • first photodetector 203, the second photodetector 204, and the third photodetector 205 may also be optical wavelength detectors coated with bandpass filters on the surface, such as the first photodetector 203 and the second
  • the photodetector 204 selectively detects light near the wavelength of the laser light source, and warns when strong light near the laser wavelength is detected;
  • the third photodetector 205 selectively detects the emission wavelength of the fluorescent material in the light wavelength conversion section, when detected Warn when there is strong excited fluorescence.
  • the size of the light introduction part 206 of this embodiment is larger than the size of the light introduction part 110 described above.
  • the size of the light introduction portion provided with the first photodetector may also be the same as the size of the light introduction portion 110 described above.
  • first photodetector the second photodetector, and the third photodetector may be provided.
  • the present application further proposes a lighting device of a third embodiment.
  • the lighting device 301 of this embodiment is different from the above lighting device 101 in that the second light exit channel 302 of this embodiment includes a transparent base 303,
  • the reflective sheet includes a reflective layer 305 covering the side of the transparent substrate 303 close to the light source 304.
  • the transparent substrate 303 of this embodiment can be used not only as an emission channel for light incident through a light passing portion (not shown), but also as a base for the reflective layer 305.
  • the transparent substrate 303 is made of a transparent material, and the transparent material includes any one or any combination of acrylic resin, polycarbonate resin, and silicone resin.
  • a vapor-deposited layer 305 that is, a reflective layer 305
  • the light-passing portion may be formed by shielding in the vapor deposition process to form an un-evaporated layer, that is, not vaporized
  • the portion of the transparent substrate 303 covered by the degree layer 305 is a light passing portion.
  • the light shielding portion (not shown in the figure) of the embodiment further includes a light shielding layer 306 (shown by a dotted line).
  • the light shielding layer 306 covers the side of the transparent base 303 away from the reflective layer 305.
  • the laser light of the light shielding layer 306 performs absorption or wavelength conversion.
  • the transparent substrate 303 and the light shielding layer 306 constitute a laser protection optical path.
  • the laser protection optical path can reduce the possibility that the laser light entering the laser protection optical path will enter the lighting device 301 again after passing through the light passing portion after being scattered many times.
  • the second light exit channel of the lighting device 101 is a hollow or semi-hollow channel
  • the second light exit channel of the lighting device 301 of this embodiment is a transparent solid channel
  • the present application further proposes a lighting device of a fourth embodiment.
  • the light reflection device 401 of this embodiment further includes a light detector 403 embedded in a transparent base 402 on the basis of the light reflection device 302, The photodetector 403 is used to detect the light intensity of the laser light incident on the transparent base 402.
  • the photodetector 403 of this embodiment is provided at the light incident end of the transparent base 402.
  • the setting and working principle of the photodetector 403 are the same as those of the above photodetector, which will not be repeated here.
  • the number and placement positions of the photodetectors are not limited, and may be two or more, and may be provided at the light exit end of the transparent substrate 402.
  • the present application further proposes a lighting device of a fifth embodiment.
  • the light reflection device 501 of this embodiment further includes an optical element 502 based on the above embodiment, which is disposed in the second light exit channel.
  • the optical element 502 is provided at the light exit end of the transparent base 503 and is used to form patterned exit light from the light conversion portion.
  • the shooting optical element 502 may be provided with a product LOGO pattern or other patterns to realize the patterning of the warning signal. This embodiment can improve the personalized settings and user experience of the lighting device.
  • optical element is also applicable to the lighting device of the other embodiments described above.
  • the lighting device of the present application may further include basic structures such as an electronic control device and a lampshade, which are not described here one by one.
  • the first light exit channel and the second light exit channel will both emit light, but the light intensity is different.
  • the light exiting from the second light exit channel is converted to the first color after wavelength conversion by the wavelength conversion section, while the light exiting from the first light exit channel is not wavelength converted and assumes the second color, so the first color Different from the second color; in the illumination mode, the fluorescent sheet converts the laser light into a third color, the light from the first light exit channel is in the third color, and the light from the second light channel is in the fourth color
  • the wavelength conversion portion can be made of the same material as the fluorescent sheet, so the third color is the same as the fourth color.
  • the combined light of the first color light and the second color light is different from the combined light color of the third color and the fourth color light.
  • the operating mode of the lighting device can be determined by the color of the light emitted by the lighting device to facilitate further operation.
  • the present application further proposes a lamp.
  • the lamp 601 of this embodiment includes a lighting device 602.
  • the lighting device 602 is the lighting device of the above embodiment, and its structure and working principle are not repeated here.
  • the lamp 601 is provided with two sets of optical paths: a laser lighting optical path and a laser safety protective optical path.
  • the laser illumination optical path utilizes a fluorescent sheet to convert the short-wavelength (usually blue) high-energy laser light to convert it into (near) white light, which is reflected outside the lamp through the reflective sheet to realize the lighting function.
  • the high-energy laser may be directly reflected to the illuminated area through the reflective sheet, so there is a safety problem.
  • the laser safety protection optical path of this embodiment utilizes the strong directivity of the laser. By designing the light passing portion on the reflector to suppress the direct laser light from being reflected to the illumination area through the reflector, the laser is introduced into the laser wavelength conversion optical path to realize the warning function.
  • the lighting device in the embodiment of the present application at least includes: a light source for emitting laser light; a fluorescent sheet, which is provided on the light emitting side of the light source, is used for wavelength conversion or scattering of the laser light; and a light reflecting device includes : Reflective sheet, set on the light emitting side of the fluorescent sheet, used to reflect the light from the fluorescent sheet to the first light exit channel for exit, the reflective sheet is provided with a light passing part, the light passing part corresponding to the fluorescent sheet is provided; the light protection part, It is installed on the side of the reflective sheet far away from the fluorescent sheet.
  • the light protection part is provided with a second light exit channel. The light entrance of the second light exit channel is corresponding to the light passing part.
  • the laser light enters the first through the light passing part. Two light exit channel exit.
  • the laser light emitted by the light source is converted or scattered by the wavelength of the fluorescent sheet, and then reflected by the reflective sheet to the outside of the lighting device, so that the lighting device works in the lighting mode; Or if it is damaged and cannot normally scatter the laser light and convert the wavelength, the laser light emitted by the light source will radiate the laser light through the light passing portion on the reflector and the second light exit channel, which can realize the warning function to make the lighting device work in the warning mode. Prevent the laser light from being directly reflected by the reflector to the outside of the lighting device to avoid safety problems.
  • the lamps and lanterns of this application can be car lamps, flashlights, headlights, etc.

Abstract

A lighting device (101) and a lamp. The lighting device (101) at least comprises: a light source (104) for emitting laser light; a fluorescent plate (105) disposed at a light emission side of the light source (104) and performing wavelength conversion on the laser light or scattering the laser light; a light reflecting device (103) comprising a reflective plate (106) disposed at a light emission side of the fluorescent plate (105) and reflecting light from the fluorescent plate (105) to a first light emission channel (102) to emit the light, the reflective plate (106) being provided with a light transmission portion (108) disposed correspondingly to the fluorescent plate (105); and a light protection portion (107) disposed at a side of the reflective plate (106) away from the fluorescent plate (105) and provided with a second light emission channel (109), a light entry opening of the second light emission channel (109) being disposed correspondingly to the light transmission portion (108), wherein in a warning mode, the laser light passes through the light transmission portion (108) and enters the second light emission channel (109) to be emitted. In this way, the invention implements a warning function of the lighting device (101).

Description

一种照明装置及灯具Lighting device and lamp 技术领域Technical field
本申请涉及照明技术领域，特别是涉及一种照明装置及灯具。The present application relates to the technical field of lighting, in particular to a lighting device and a lamp.
背景技术Background technique
在机动车的前照灯等车辆灯具中，使用激光二极管光源替代发光二极管，具有亮度高、照明距离远等优势。在使用激光光源的灯具中，一般使用短波长激光照射波长转换元件，以产生长波长荧光，经混光之后出射(近)白色光。In vehicle lamps such as headlights of motor vehicles, the use of laser diode light sources instead of light-emitting diodes has the advantages of high brightness and long illumination distance. In a lamp using a laser light source, a short-wavelength laser is generally used to irradiate the wavelength conversion element to generate long-wavelength fluorescence, and then (near) white light is emitted after being mixed.
激光具有能量高和指向性强的特点，使用激光直接照射到灯具外的行人、车辆或者路面等会存在严重的安全问题。因此，需要将激光照射到荧光体上以进行散射和波长转换，产生具有适度能量的(近)白色光，才可以作为车辆的前照灯等的照明光使用。The laser has the characteristics of high energy and strong directivity. Using the laser to directly illuminate pedestrians, vehicles or roads outside the lamp will cause serious safety problems. Therefore, it is necessary to irradiate laser light on the phosphor for scattering and wavelength conversion to generate (near) white light with moderate energy before it can be used as illumination light for a vehicle headlight or the like.
本申请的发明人在长期的研发中发现，为了避免激光直接照射到灯具之外情况，通常需要将荧光体牢固地固定在靠近激光光源的安装体上，以防止其脱落或损伤。但，荧光体难免会出现异常，为提供进一步安全防护，一方面，可以在激光所照射的反射器上形成贯穿该反射器的贯穿孔或者出口，以使激光向反射器的背面外侧照射，避免方向性强的高能激光经反射器直接出射到灯具之外。但是，车辆的灯室内通常配置有大量零件，其中的大部分会反射光。因此，从贯穿孔或者出口导向反射器背面外侧的激光进行数次反射之后，仍然存在以高能量的状态直接出射到灯具外面的可能性。另一方面，可以在激光接触荧光体之前的光路的延长路和反射器的交叉面处设计了光通过部，将穿过光通过部的激光限制在特殊设计的光封入部而避免激光出射。但这些方案均是通过在内部消耗穿过光通过部的光，无法起到警示作用。The inventor of the present application has found in long-term research and development that in order to avoid direct irradiation of the laser outside the lamp, it is usually necessary to firmly fix the phosphor on the mounting body close to the laser light source to prevent it from falling off or being damaged. However, the phosphor will inevitably appear abnormal. To provide further safety protection, on the one hand, a through hole or an outlet penetrating the reflector can be formed on the reflector irradiated by the laser, so that the laser irradiates the outside of the back of the reflector to avoid High-energy laser light with strong directivity is directly emitted outside the lamp through the reflector. However, a vehicle's lamp compartment is usually equipped with a large number of parts, most of which reflect light. Therefore, after several reflections of the laser light directed from the through hole or the outlet to the outside of the back of the reflector, there is still the possibility of directly exiting the lamp with high energy. On the other hand, a light passing portion may be designed at the intersection of the extension of the optical path before the laser contacts the phosphor and the reflector, and the laser light passing through the light passing portion may be limited to a specially designed light-sealing portion to avoid laser emission. However, these schemes all consume light passing through the light-passing portion internally, and cannot serve as a warning.
发明内容Summary of the invention
本申请主要解决的技术问题是提供一种照明装置及灯具，以实现照明装置的警示功能。The technical problem mainly solved by the present application is to provide a lighting device and a lamp to realize the warning function of the lighting device.
为解决上述技术问题，本申请采用的一个技术方案是：提供一种照明装置，该照明装置至少包括：光源，用于出射激光；荧光片，设置在光源的出光侧，用于对激光进行波长转换或使激光发生散射；光反射装置，包括：反光片，设置在荧光片的出光侧，用于将来自荧光片的光反射至第一光出射通道出射，反光片设有一光通过部，光通过部与荧光片对应设置；光防护部，设置在反光片远离荧光片的一侧，光防护部设有第二光出射通道，第二光出射通道的光入口与光通过部对应设置；在警示模式下，激光经光通过部入射至第二光出射通道出射。In order to solve the above technical problems, a technical solution adopted by the present application is to provide an illuminating device, the illuminating device at least includes: a light source for emitting laser light; a fluorescent sheet is provided on the light emitting side of the light source for wavelength laser Converts or scatters laser light; a light reflecting device, including: a reflective sheet, is provided on the light emitting side of the fluorescent sheet, and is used to reflect light from the fluorescent sheet to the first light exit channel for exit, and the reflective sheet is provided with a light passing portion The passing part is provided corresponding to the fluorescent sheet; the light protecting part is provided on the side of the reflector away from the fluorescent sheet, and the light protecting part is provided with a second light exit channel, and the light entrance of the second light exit channel corresponds to the light passing part; In the warning mode, the laser light is incident on the second light exit channel through the light passing portion and exits.
在一个实施方式中，第二光出射通道包括透明基体，反光片包括覆盖在透明基体靠近光源一侧的反射层。In one embodiment, the second light exit channel includes a transparent substrate, and the reflective sheet includes a reflective layer covering the side of the transparent substrate close to the light source.
在一个实施方式中，光防护部进一步包括遮光层，遮光层覆盖在透明基体远离反射层的一侧，遮光层用于对入射到遮光层的激光进行吸收或者波长转换。In one embodiment, the light-shielding portion further includes a light-shielding layer covering the side of the transparent substrate away from the reflective layer. The light-shielding layer is used to absorb or convert wavelength of laser light incident on the light-shielding layer.
在一个实施方式中，光反射装置进一步包括嵌设在透明基体中的光探测器，光探测器用于对入射到透明基体中的激光的光强度进行检测。In one embodiment, the light reflection device further includes a photodetector embedded in the transparent substrate, and the photodetector is used to detect the light intensity of the laser light incident on the transparent substrate.
在一个实施方式中，第二光出射通道包括沿光路方向依次设置的光导入部、光散射部和波长转换部，光导入部与光通过部连接。In one embodiment, the second light exit channel includes a light introduction part, a light scattering part, and a wavelength conversion part that are sequentially provided along the optical path direction, and the light introduction part is connected to the light passing part.
在一个实施方式中，光反射装置进一步包括设置在光导入部的第一光探测器、设置在光散射部的第二光探测器及设置在波长转换部的第三光探测器。In one embodiment, the light reflection device further includes a first photodetector provided in the light introduction part, a second photodetector provided in the light scattering part, and a third photodetector provided in the wavelength conversion part.
在一个实施方式中，照明装置进一步包括光学元件，设置在第二光出射通道，用于将从光转换部出射的光形成图案化出射光。In one embodiment, the lighting device further includes an optical element disposed in the second light exit channel, and configured to form patterned exit light from the light exiting from the light conversion portion.
在一个实施方式中，在警示模式下，波长转换部对入射至第二光出射通道的光进行波长转换，以使通过第二光出射通道出射的光为第一颜色的光，通过第一光通道出射的光为第二颜色的光，第一颜色与第二颜色不同；在照明模式下，荧光片对激光进行波长转换，以使通过第一光出射通道出射的光为第三颜色的光，通过第二光通道出射的光为第四颜色的光，第三颜色与第四颜色相同。In one embodiment, in the warning mode, the wavelength conversion unit performs wavelength conversion on the light incident on the second light exit channel so that the light exiting through the second light exit channel is the light of the first color and passes the first light The light exiting the channel is the light of the second color, the first color is different from the second color; in the illumination mode, the fluorescent sheet converts the wavelength of the laser so that the light exiting through the first light exit channel is the light of the third color The light emitted through the second light channel is the light of the fourth color, and the third color is the same as the fourth color.
在一个实施方式中，照明装置进一步包括：聚光透镜，设置在光源与荧光片之间，用于将激光进行聚光整形后出射至荧光片；散热装置，设置在光源的侧边。In one embodiment, the lighting device further includes: a condenser lens, disposed between the light source and the fluorescent sheet, for condensing and shaping the laser light, and then exiting to the fluorescent sheet; and a heat dissipating device, disposed on the side of the light source.
为解决上述技术问题，本申请采用的另一技术方案是：提供一种车灯，包括上述的照明装置。In order to solve the above technical problems, another technical solution adopted by the present application is to provide a vehicle lamp including the above-mentioned lighting device.
本申请实施例的有益效果是：区别于现有技术，本申请实施例照明装置至少包括：光源，用于出射激光；荧光片，设置在光源的出光侧，用于对激光进行波长转换或使激光发生散射；光反射装置，包括：反光片，设置在荧光片的出光侧，用于将来自荧光片的光反射至第一光出射通道出射，反光片设有一光通过部，光通过部与荧光片对应设置；光防护部，设置在反光片远离荧光片的一侧，光防护部设有第二光出射通道，第二光出射通道的光入口与光通过部对应设置；在警示模式下，激光经光通过部入射至第二光出射通道出射。通过这种方式，荧光片正常工作时，光源出射的激光经荧光片波长转换或者散射之后，由反光片通过反射至照明装置外，以使照明装置工作于照明模式；在荧光片从配置位置脱落或者损坏而不能正常对激光散射和波长转化时，光源出射的激光经反光片上的光通过部及第二光出射通道将激光进行放射，能够实现警示功能，以使照明装置工作于警示模式，同时防止激光直接由反光片反射至照明装置之外，避免造成安全问题。The beneficial effects of the embodiment of the present application are: different from the prior art, the lighting device of the embodiment of the present application at least includes: a light source for emitting laser light; a fluorescent sheet is provided on the light emitting side of the light source for wavelength conversion of the laser light or The laser light is scattered; the light reflection device includes: a reflective sheet, which is arranged on the light emitting side of the fluorescent sheet, and is used to reflect the light from the fluorescent sheet to the first light exit channel to exit, and the reflective sheet is provided with a light passing portion, the light passing portion and Fluorescent film is set correspondingly; the light protection part is set on the side of the reflector away from the fluorescent film. The light protection part is provided with a second light exit channel, and the light entrance of the second light exit channel is corresponding to the light passing part; in the warning mode The laser light is incident on the second light exit channel through the light passing portion and exits. In this way, when the fluorescent sheet is working normally, the laser light emitted by the light source is converted or scattered by the wavelength of the fluorescent sheet, and then reflected by the reflective sheet to the outside of the lighting device, so that the lighting device works in the lighting mode; Or if it is damaged and cannot normally scatter the laser light and convert the wavelength, the laser light emitted by the light source will radiate the laser light through the light passing portion on the reflector and the second light exit channel, which can realize the warning function to make the lighting device work in the warning mode. Prevent the laser light from being directly reflected by the reflector to the outside of the lighting device to avoid safety problems.
附图说明BRIEF DESCRIPTION
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some of the applications For the embodiment, for those of ordinary skill in the art, without paying any creative labor, other drawings may be obtained based on these drawings.
图1是本申请照明装置第一实施例的结构示意图；1 is a schematic structural diagram of a first embodiment of a lighting device of the present application;
图2是本申请照明装置第二实施例的结构示意图；2 is a schematic structural diagram of a second embodiment of a lighting device of the present application;
图3是本申请照明装置第三实施例的结构示意图；3 is a schematic structural diagram of a third embodiment of a lighting device of the present application;
图4是本申请照明装置第四实施例中光反射装置的结构示意图；4 is a schematic structural diagram of a light reflecting device in a fourth embodiment of the lighting device of the present application;
图5是本申请照明装置第五实施例中光反射装置的结构示意图；5 is a schematic structural view of a light reflecting device in a fifth embodiment of the lighting device of the present application;
图6是本申请灯具一实施例的结构示意图。FIG. 6 is a schematic structural diagram of an embodiment of a lamp of the present application.
具体实施方式detailed description
下面结合附图和实施例，对本申请作进一步的详细描述。特别指出的是，以下实施例仅用于说明本申请，但不对本申请的范围进行限定。同样的，以下实施例仅为本申请的部分实施例而非全部实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。The present application will be described in further detail below with reference to the drawings and embodiments. In particular, the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only a part of the embodiments of the present application but not all the embodiments. All other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
本申请的说明书和权利要求书及上述附图中的术语“内”、“外”等指示的方位或者位置关系为基于附图所示的方位或者位置关系，或者是该申请产品使用时惯常摆放的方位或者位置关系，仅是为了方便描述本申请合简化描述，而不是指示或者暗示所指的装置或者元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。The orientation or positional relationship indicated in the description and claims of the present application and the terms "inner" and "outer" in the above drawings is based on the orientation or positional relationship shown in the drawings, or is habitually placed when the product of the application is used The orientation or positional relationship is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limit.
此外，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。In addition, the terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects, and It is not necessary to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
本申请首先提出一种照明装置，如图1所示，图1是本申请照明装置第一实施例的结构示意图。本实施例照明装置101至少包括：光反射装置103、光源104及荧光片105，光源104用于出射激光；荧光片105设置在光源104的出光侧，用于对激光进行波长转换或使激光发生散射；光反射装置103包括反光片106及光防护部107，反光片106设置在荧光片105的出光侧，用于将来自荧光片105的光反射至第一光出射通道出射102，反光片106设有一光通过部108，光通过部108与荧光片105对应设置；光防护部107设置在反光片106远离荧光片105的一侧，光 防护部107设有第二光出射通道109，第二光出射通道109的光入口与光通过部108对应设置；在警示模式下，激光经光通过部108入射至第二光出射通道109，出射。The present application first proposes a lighting device. As shown in FIG. 1, FIG. 1 is a schematic structural diagram of a first embodiment of the lighting device of the present application. The lighting device 101 of this embodiment at least includes: a light reflecting device 103, a light source 104, and a fluorescent sheet 105. The light source 104 is used to emit laser light; the fluorescent sheet 105 is disposed on the light emitting side of the light source 104, and is used to convert the wavelength of the laser light or generate the laser light. Scattering; the light reflecting device 103 includes a reflective sheet 106 and a light protection part 107, the reflective sheet 106 is provided on the light emitting side of the fluorescent sheet 105, and is used to reflect the light from the fluorescent sheet 105 to the first light exit channel exit 102, the reflective sheet 106 A light-passing portion 108 is provided, and the light-passing portion 108 is provided corresponding to the fluorescent sheet 105; the light-shielding section 107 is disposed on the side of the reflective sheet 106 away from the fluorescent sheet 105, and the light-shielding section 107 is provided with a second light exit channel 109, a second The light entrance of the light exit channel 109 is corresponding to the light passing portion 108; in the warning mode, the laser light enters the second light exit channel 109 through the light passing portion 108 and exits.
其中，本实施例的光源104可以是半导体激光元件，如用于产生蓝系(例如450nm左右)激光或者近紫外域(例如405nm左右)激光的激光元件。当然，在其它实施例中，光源还可以是用于产生其它波长的激光元件或者其它发光元件。The light source 104 in this embodiment may be a semiconductor laser element, such as a laser element for generating blue laser light (for example, about 450 nm) or near ultraviolet light (for example, about 405 nm). Of course, in other embodiments, the light source may also be a laser element or other light-emitting element for generating other wavelengths.
其中，本实施例的荧光片105可以对光源104出射的激光中的至少一部分进行散射和波长转换，以形成(近)白色光。Wherein, the fluorescent sheet 105 of this embodiment can scatter and wavelength convert at least a part of the laser light emitted by the light source 104 to form (near) white light.
本实施例的荧光片105可以是由掺杂有铈Ce等稀土元素的YAG和氧化铝Al 2O 3的复合体形成的上下表面大致平行的板状或者层状物。荧光片105的厚度可依据照明装置101的目的色度和散热要求设定。 The fluorescent sheet 105 of this embodiment may be a plate-like or layered material formed by a composite body of YAG doped with rare earth elements such as cerium Ce and alumina Al 2 O 3 and having upper and lower surfaces substantially parallel. The thickness of the fluorescent sheet 105 can be set according to the target chromaticity and heat dissipation requirements of the lighting device 101.
其中，本实施例的反光片106可以呈拱形，覆盖从光源104的侧方到上方(出光侧)的范围，以将光源104产生的(近)白色光反射到照明装置101之外，实现照明装置101的照明功能。Wherein, the reflective sheet 106 of this embodiment may be arched, covering the range from the side of the light source 104 to the upper side (the light exit side), so as to reflect the (near) white light generated by the light source 104 to the outside of the lighting device 101 to achieve The lighting function of the lighting device 101.
其中，光通过部108为设置在反光片106上的一开孔。该开孔位于反光片106和光源104发出激光照射荧光片105之前光路的延长路的交叉处。光通过部108的形状可以是矩形、圆形或者椭圆形，其形状和大小可以依据光源104在荧光片105异常工作时出射激光光斑的形状及余量而设定，光通过部108尺寸(可以以最小外接圆直径计算)约为几毫米，远小于反光片106的尺寸。Among them, the light passing portion 108 is an opening provided on the reflective sheet 106. The opening is located at the intersection of the extension path of the optical path before the reflective sheet 106 and the light source 104 emit laser light to illuminate the fluorescent sheet 105. The shape of the light passing portion 108 may be a rectangle, a circle, or an ellipse. The shape and size of the light passing portion 108 may be set according to the shape and margin of the laser spot emitted by the light source 104 when the fluorescent sheet 105 operates abnormally. Calculated with the smallest circumscribed circle diameter), it is about several millimeters, which is much smaller than the size of the reflector 106.
区别于现有技术，荧光片105正常工作时，光源104出射的激光经荧光片105波长转换或者散射之后，由反光片106通过反射至照明装置101外，以使照明装置101工作于照明模式；在荧光片105从配置位置脱落或者损坏而不能正常对激光散射和波长转化时，光源104出射的激光经反光片106上的光通过部108及第二光出射通道109将激光进行放射，能够实现警示功能，以使照明装置101工作于警示模式，同时防止激光直接由反光片106反射至照明装置101之外，避免造成安全问题。Different from the prior art, when the fluorescent sheet 105 works normally, the laser light emitted by the light source 104 is wavelength-converted or scattered by the fluorescent sheet 105, and then reflected by the reflective sheet 106 to the outside of the lighting device 101, so that the lighting device 101 works in the lighting mode; When the fluorescent sheet 105 is detached or damaged from the arrangement position and cannot normally scatter the laser light and convert the wavelength, the laser light emitted by the light source 104 radiates the laser light through the light passing portion 108 and the second light exit channel 109 on the reflective sheet 106, which can The warning function enables the lighting device 101 to work in the warning mode, and at the same time prevents the laser light from being directly reflected by the reflector 106 to the outside of the lighting device 101 to avoid causing safety problems.
可选地，本实施例的第二光出射通道109包括：沿光路方向依次设置的光导入部110、光散射部111及波长转换部112，其中，光导入部 110与光通过部108连接，光散射部111设置在光导入部110远离光通过部108的一侧，光散射部111位于光导入部110与波长转换部112之间。Optionally, the second light exit channel 109 of this embodiment includes: a light introduction part 110, a light scattering part 111, and a wavelength conversion part 112 that are sequentially provided along the light path direction, wherein the light introduction part 110 is connected to the light passing part 108, The light scattering part 111 is provided on the side of the light introduction part 110 away from the light passing part 108, and the light scattering part 111 is located between the light introduction part 110 and the wavelength conversion part 112.
本实施例的光导入部110、光散射部111及波长转换部112组成照明装置101的激光防护光路。The light introduction part 110, the light scattering part 111, and the wavelength conversion part 112 of this embodiment constitute a laser protection optical path of the lighting device 101.
在荧光片105不能正常工作时，光源104出射的激光通过光通过部108进入光导入部110，光导入部110对从光通过部108穿过的入射光进行偏折，一方面能够避免入射光经光通过部108再次进入照明装置101内，另一方面能够将入射光导入到光散射部111。其中，光导入部110至少包括折光器件，该折光器件可以是背面涂覆有铝Al或银Ag的平面镜或者全反射TIR器件等。When the fluorescent sheet 105 does not work normally, the laser light emitted by the light source 104 enters the light introducing part 110 through the light passing part 108, and the light introducing part 110 deflects the incident light passing through the light passing part 108, on the one hand, the incident light can be avoided The light passing portion 108 enters the lighting device 101 again, and on the other hand, the incident light can be guided to the light scattering portion 111. Wherein, the light introduction part 110 includes at least a refractive device, which may be a plane mirror coated with aluminum Al or silver Ag on the back or a total reflection TIR device.
本实施例的光散射部111呈曲折导管形状，以对从光导入部110进入的光进行反射散射，避免第二光出射通道109直接出射未经散射的光。在其它实施例中，可以在光散射部的内表面涂覆有漫反射层，以对从光导入部进入的光进行散射。The light scattering part 111 of this embodiment is in the shape of a meandering duct to reflect and scatter the light entering from the light introduction part 110 to avoid the second light exit channel 109 from directly emitting unscattered light. In other embodiments, a diffuse reflection layer may be coated on the inner surface of the light scattering part to scatter the light entering from the light introduction part.
本实施例的波长转换部112采用与荧光片105相同或不同的荧光材料，以对从光散射部111入射的光进行散射和光波长转换。波长转换部112内的荧光结构和材料优先柔性照明光纤。当然，也可以根据照明装置101的具体要求设计弯折光路和填充荧光材料。荧光材料优先选择具有两个或多个发射光波段或者宽发射谱的荧光材料，比如Ba 2Mg(BO 3) 2:Ce 3+,Eu 2+,Na +等，具体的转换波长可以依据警示颜色而设定，警示颜色优先选择红色。荧光材料的浓度和长度可以依据在荧光片105脱落或损坏，光源104发射的激光直接入射到波长转换部112时，经波长转换部112转换后达到安全标准并考虑一定余量的情况进行设定。 The wavelength conversion section 112 of this embodiment uses the same or different fluorescent material as the fluorescent sheet 105 to scatter the light incident from the light scattering section 111 and convert the light wavelength. The fluorescent structure and material in the wavelength conversion section 112 preferentially flexibly illuminate the optical fiber. Of course, it is also possible to design the bent optical path and fill the fluorescent material according to the specific requirements of the lighting device 101. Fluorescent materials are preferred to have two or more emission bands or broad emission spectrum, such as Ba 2 Mg (BO 3 ) 2 : Ce 3+ , Eu 2+ , Na +, etc. The specific conversion wavelength can be based on the warning The color is set, and the warning color is preferably red. The concentration and length of the fluorescent material can be set according to the situation where the fluorescent sheet 105 falls off or is damaged, the laser light emitted by the light source 104 directly enters the wavelength conversion section 112, and after conversion by the wavelength conversion section 112 reaches a safety standard and a certain margin is considered .
在荧光片105正常工作时，由光源104发出的(近)白色光经反光片106投射到照明装置101之外，以实现照明功能。由于光通过部108的尺寸远小于反光片106的尺寸，此时进入第二光出射通道109的(近)白色光占由光源104发出的(近)白色光的比例很小，第二光出射通道109内的(近)白色光通过光散射部111和波长转换部112之后会被耗散。在荧光片105脱落或者损坏时，由于激光的强指向性，从光源104 出射的激光通过光通过部108直接进入第二光出射通道109，经过光导入部110、光散射部111和波长转换部112之后转化为不同颜色的警示光而为用户所觉察，实现警示功能。When the fluorescent sheet 105 works normally, the (near) white light emitted by the light source 104 is projected out of the lighting device 101 through the reflective sheet 106 to realize the lighting function. Since the size of the light passing portion 108 is much smaller than the size of the reflector 106, the (near) white light entering the second light exit channel 109 accounts for a small proportion of the (near) white light emitted by the light source 104 at this time, and the second light exits The (near) white light in the channel 109 is dissipated after passing through the light scattering part 111 and the wavelength conversion part 112. When the fluorescent sheet 105 is detached or damaged, due to the strong directivity of the laser light, the laser light emitted from the light source 104 directly enters the second light exit channel 109 through the light passage portion 108, passes through the light introduction portion 110, the light scattering portion 111, and the wavelength conversion portion After 112, it is converted into warning lights of different colors to be noticed by users, and the warning function is realized.
可选地，本实施例的照明装置101进一步包括聚光透镜113，聚光透镜113设置在光源104与荧光片105之间，用于将激光进行聚光整形后出射至荧光片105。Optionally, the lighting device 101 of this embodiment further includes a condensing lens 113, which is disposed between the light source 104 and the fluorescent sheet 105, and is used for condensing and shaping the laser light and exiting to the fluorescent sheet 105.
可选地，本实施例的照明装置101进一步包括腔体114，一方面，聚光透镜113及荧光片105可以固定在腔体114的侧壁上，另一方面，腔体114能够避免光源104出射的激光泄露。Optionally, the lighting device 101 of this embodiment further includes a cavity 114. On the one hand, the condenser lens 113 and the fluorescent sheet 105 can be fixed on the side wall of the cavity 114. On the other hand, the cavity 114 can avoid the light source 104 The emitted laser leaked.
本实施例的光源104通过固定座(图未标)设置在腔体114的底部，聚光透镜113设置在腔体114的中部，荧光片105设置在腔体114的顶部，光源104出射的激光从腔体114的底部出射至顶部。The light source 104 of this embodiment is disposed at the bottom of the cavity 114 through a fixing base (not shown), the condenser lens 113 is disposed at the middle of the cavity 114, the fluorescent sheet 105 is disposed at the top of the cavity 114, and the laser light emitted by the light source 104 It exits from the bottom of the cavity 114 to the top.
本实施例的腔体114、固定座等的整体形状和尺寸可根据照明装置101光斑大小及其内部空间设定。The overall shape and size of the cavity 114, the fixing base, etc. in this embodiment can be set according to the spot size of the lighting device 101 and its internal space.
可选地，本实施例的照明装置101进一步包括散热装置115，散热装置115设置在光源104的侧边，用于散发光源104工作时产生的废热。具体地，散热装置115设置在设置光源104的一侧及远离照明装置101出光侧的一侧。Optionally, the lighting device 101 of this embodiment further includes a heat dissipation device 115 disposed on the side of the light source 104 for dissipating waste heat generated when the light source 104 operates. Specifically, the heat dissipation device 115 is provided on the side where the light source 104 is provided and the side away from the light emitting side of the lighting device 101.
本实施例的散热装置115为散热片，在其它实施例中，散热装置115还可以是其它散热基板或半导体制冷片等。The heat dissipation device 115 of this embodiment is a heat sink. In other embodiments, the heat dissipation device 115 may also be other heat dissipation substrates or semiconductor cooling fins.
可选地，本实施例的照明装置101进一步包括结构件116，结构件116将腔体114的侧壁与散热装置115及照明装置101的其它内部结构固定，避免发生侧移或者倾斜。Optionally, the lighting device 101 of this embodiment further includes a structural member 116 that fixes the side wall of the cavity 114 to the heat dissipation device 115 and other internal structures of the lighting device 101 to avoid side shift or tilt.
为了检测荧光片是否发生异常，是否对光源出射的激光进行散射和波长转换，需要在第二光出射通路的重要位置设置光探测器，以对第二光出射通路中的光强度或者波长进行检测。In order to detect whether the fluorescent sheet is abnormal, whether to scatter and wavelength convert the laser light emitted by the light source, it is necessary to install a photodetector at an important position of the second light exit path to detect the light intensity or wavelength in the second light exit path .
为此，本申请进一步提出第二实施例的照明装置，如图2所示，本实施例照明装置201中光反射装置202在上述光反射装置103的基础上进一步包括：第一光探测器203、第二光探测器204及第三光探测器205，其中，第一光探测器203设置在光导入部206，第二光探测器204设置 在光散射部207，第三光探测205设置在波长转换部208。To this end, the present application further proposes a lighting device of the second embodiment. As shown in FIG. 2, the light reflecting device 202 in the lighting device 201 of this embodiment further includes: a first light detector 203 on the basis of the light reflecting device 103 , A second photodetector 204 and a third photodetector 205, wherein the first photodetector 203 is provided in the light introduction part 206, the second photodetector 204 is provided in the light scattering part 207, and the third photodetector 205 is provided in Wavelength conversion unit 208.
具体地，第一光探测器203设置在光导入部206的侧面，第二光探测器204设置在光散射部207的侧面，第三光探测器205设置在波长转换部208的侧面。第一光探测器203和第二光探测器204可以是光强度探测器。若第一光探测器203和第二光探测器204探测到第二光出射通道(图未标)内具有相对较弱的(近)白色光，则判断荧光片209正常工作；若第一光探测器203和第二光探测器204探测到第二光出射通道内具有相对较强的光，则判断荧光片209脱落或者损坏，提示用户检查照明装置201并切断光源210的驱动电流以避免安全问题；第三光探测器205优先选择光波长探测器，若第三光探测器205探测到(近)白色光激发得到的相对弱的荧光，则判断荧光片209正常工作；若第三光探测器205探测到激光激发得到的相对强的荧光，则判断荧光片209脱落或者损坏，提示用户检查照明装置201并切断光源210的驱动电流以避免安全问题。Specifically, the first photodetector 203 is provided on the side of the light introduction part 206, the second photodetector 204 is provided on the side of the light scattering part 207, and the third photodetector 205 is provided on the side of the wavelength conversion part 208. The first light detector 203 and the second light detector 204 may be light intensity detectors. If the first light detector 203 and the second light detector 204 detect a relatively weak (near) white light in the second light exit channel (not shown in the figure), it is determined that the fluorescent sheet 209 is working normally; if the first light When the detector 203 and the second light detector 204 detect that there is relatively strong light in the second light exit channel, the fluorescent sheet 209 is judged to be off or damaged, and the user is prompted to check the lighting device 201 and cut off the driving current of the light source 210 to avoid safety Problem; the third light detector 205 preferentially selects the light wavelength detector. If the third light detector 205 detects relatively weak fluorescence excited by (near) white light, it is judged that the fluorescent sheet 209 works normally; if the third light detection The detector 205 detects the relatively strong fluorescence obtained by the laser excitation, and then determines that the fluorescent sheet 209 is detached or damaged, prompting the user to check the lighting device 201 and cut off the driving current of the light source 210 to avoid safety problems.
此外，第一光探测器203、第二光探测器204及第三光探测器205也可以是表面涂覆有带通滤光膜的光波长探测器，比如第一光探测器203及第二光探测器204选择性探测激光光源波长附近的光，当探测到有较强的激光波长附近光时提出警示；第三光探测器205选择性探测光波长转换部荧光材料发光波长，当探测到有较强的被激发荧光时提出警示。In addition, the first photodetector 203, the second photodetector 204, and the third photodetector 205 may also be optical wavelength detectors coated with bandpass filters on the surface, such as the first photodetector 203 and the second The photodetector 204 selectively detects light near the wavelength of the laser light source, and warns when strong light near the laser wavelength is detected; the third photodetector 205 selectively detects the emission wavelength of the fluorescent material in the light wavelength conversion section, when detected Warn when there is strong excited fluorescence.
其中，本实施例的光导入部206的尺寸大于上述光导入部110的尺寸。当然，在其它实施例中，设置有第一光探测器的光导入部的尺寸还可以与上述光导入部110尺寸相同。The size of the light introduction part 206 of this embodiment is larger than the size of the light introduction part 110 described above. Of course, in other embodiments, the size of the light introduction portion provided with the first photodetector may also be the same as the size of the light introduction portion 110 described above.
在其它实施例中，可以仅设置第一光探测器、第二光探测器及第三光探测器中的任意一个或者任意两个。In other embodiments, only any one or any two of the first photodetector, the second photodetector, and the third photodetector may be provided.
本申请进一步提出第三实施例的照明装置，如图3所示，本实施例照明装置301与上述照明装置101的不同之处在于：本实施例的第二光出射通道302包括透明基体303，反光片包括覆盖在透明基体303靠近光源304一侧的反射层305。The present application further proposes a lighting device of a third embodiment. As shown in FIG. 3, the lighting device 301 of this embodiment is different from the above lighting device 101 in that the second light exit channel 302 of this embodiment includes a transparent base 303, The reflective sheet includes a reflective layer 305 covering the side of the transparent substrate 303 close to the light source 304.
本实施例的透明基体303不仅可以作为通过光通过部(图未标)入 射的光的发射通道，还可以作为反射层305的基座。其中，透明基体303采用透明材料制作而成，该透明材料包括丙烯酸树脂、聚碳酸酯树脂及硅树脂中的任意一种或任意组合等。The transparent substrate 303 of this embodiment can be used not only as an emission channel for light incident through a light passing portion (not shown), but also as a base for the reflective layer 305. The transparent substrate 303 is made of a transparent material, and the transparent material includes any one or any combination of acrylic resin, polycarbonate resin, and silicone resin.
本实施例可以通过在透明材料靠近光源304一侧的表面通过蒸镀工艺形成蒸镀层305，即反射层305，而光通过部可以通过在蒸镀工艺中遮挡形成未蒸镀层，即未被蒸度层305覆盖的透明基体303的部分为光通过部。In this embodiment, a vapor-deposited layer 305, that is, a reflective layer 305, may be formed on the surface of the transparent material close to the light source 304 by a vapor deposition process, and the light-passing portion may be formed by shielding in the vapor deposition process to form an un-evaporated layer, that is, not vaporized The portion of the transparent substrate 303 covered by the degree layer 305 is a light passing portion.
可选地，实施例的光防护部(图未标)进一步包括遮光层306(虚线所示)，遮光层306覆盖在透明基体303远离反射层305的一侧，遮光层306用于对入射到遮光层306的激光进行吸收或者波长转换。Optionally, the light shielding portion (not shown in the figure) of the embodiment further includes a light shielding layer 306 (shown by a dotted line). The light shielding layer 306 covers the side of the transparent base 303 away from the reflective layer 305. The laser light of the light shielding layer 306 performs absorption or wavelength conversion.
本实施例的透明基体303及遮光层306组成了激光防护光路。激光防护光路能够减少进入到激光防护光路中的激光经多次散射之后经过光通过部再次进入照明装置301内的可能性。In this embodiment, the transparent substrate 303 and the light shielding layer 306 constitute a laser protection optical path. The laser protection optical path can reduce the possibility that the laser light entering the laser protection optical path will enter the lighting device 301 again after passing through the light passing portion after being scattered many times.
需要注意的是，由上述分析可知，上述照明装置101的第二光出射通道为空心或者半空心通道，而本实施例照明装置301的第二光出射通道为透明的实心通道，这两种结构均能实现激光的警示功能。It should be noted that the above analysis shows that the second light exit channel of the lighting device 101 is a hollow or semi-hollow channel, while the second light exit channel of the lighting device 301 of this embodiment is a transparent solid channel, these two structures Both can realize the laser warning function.
本申请进一步提出第四施例的照明装置，如图4所示，本实施例的光反射装置401在上述光反射装置302的基础上进一步包括嵌设在透明基体402中的光探测器403，光探测器403用于对入射到透明基体402中的激光的光强度进行检测。The present application further proposes a lighting device of a fourth embodiment. As shown in FIG. 4, the light reflection device 401 of this embodiment further includes a light detector 403 embedded in a transparent base 402 on the basis of the light reflection device 302, The photodetector 403 is used to detect the light intensity of the laser light incident on the transparent base 402.
具体地，本实施例的光探测器403设在透明基体402的光入射端。Specifically, the photodetector 403 of this embodiment is provided at the light incident end of the transparent base 402.
光探测器403的设置及工作原理于上述光探测器相同，这里不赘述。The setting and working principle of the photodetector 403 are the same as those of the above photodetector, which will not be repeated here.
在其它实施例，不限定光探测器的数量及设置位置，可以是两个或两个以上，可以设置在透明基体402的光出射端。In other embodiments, the number and placement positions of the photodetectors are not limited, and may be two or more, and may be provided at the light exit end of the transparent substrate 402.
本申请进一步提出第五实施例的照明装置，如图5所示，本实施例的光反射装置501在上述实施例的基础上进一步包括光学元件502，设置在第二光出射通道，具体地，光学元件502设置在透明基体503的光出射端，用于将从光转换部出射的光形成图案化出射光。The present application further proposes a lighting device of a fifth embodiment. As shown in FIG. 5, the light reflection device 501 of this embodiment further includes an optical element 502 based on the above embodiment, which is disposed in the second light exit channel. The optical element 502 is provided at the light exit end of the transparent base 503 and is used to form patterned exit light from the light conversion portion.
射光学元件502可以设置有产品LOGO图案或者其它图案，以实现警示信号的图案化。本实施例能够提高照明装置的个性化设置及用户体 验。The shooting optical element 502 may be provided with a product LOGO pattern or other patterns to realize the patterning of the warning signal. This embodiment can improve the personalized settings and user experience of the lighting device.
光学元件还适用于上述其它实施例的照明装置。The optical element is also applicable to the lighting device of the other embodiments described above.
当然，本申请照明装置还可以进一步包括电子控制装置及灯罩等基本结构，这里不一一叙述。Of course, the lighting device of the present application may further include basic structures such as an electronic control device and a lampshade, which are not described here one by one.
在另一实施例中，无论荧光片是否正常工作，第一光出射通道及第二出射通道均会有光出射，只是光强度不同。在警示模式下，从第二光出射通道出射的光经波长转换部波长转换后呈第一颜色，而从第一光出射通道出射的光没有进行波长转换，呈第二颜色，因此第一颜色与第二颜色不同；在照明模式下，荧光片对激光进行波长转换后呈第三颜色，从第一光出射通道出射的光呈第三颜色，从第二光通道出射的光呈第四颜色，同时，可将波长转换部采用与荧光片相同的材料，因此第三颜色与所述第四颜色相同。In another embodiment, regardless of whether the fluorescent sheet is working normally, the first light exit channel and the second light exit channel will both emit light, but the light intensity is different. In the warning mode, the light exiting from the second light exit channel is converted to the first color after wavelength conversion by the wavelength conversion section, while the light exiting from the first light exit channel is not wavelength converted and assumes the second color, so the first color Different from the second color; in the illumination mode, the fluorescent sheet converts the laser light into a third color, the light from the first light exit channel is in the third color, and the light from the second light channel is in the fourth color At the same time, the wavelength conversion portion can be made of the same material as the fluorescent sheet, so the third color is the same as the fourth color.
且第一颜色的光及第二颜色的光的合成光与第三颜色及第四颜色个光的合成光颜色不同。And the combined light of the first color light and the second color light is different from the combined light color of the third color and the fourth color light.
通过这种方式，能够通过照明装置出射的光的颜色判断照明装置的工作模式，以便于进一步操作。In this way, the operating mode of the lighting device can be determined by the color of the light emitted by the lighting device to facilitate further operation.
本申请进一步提出一种灯具，如图6所示，本实施例灯具601包括照明装置602，照明装置602为上述实施例照明装置，其结构及工作原理这里不赘述。The present application further proposes a lamp. As shown in FIG. 6, the lamp 601 of this embodiment includes a lighting device 602. The lighting device 602 is the lighting device of the above embodiment, and its structure and working principle are not repeated here.
本实施例灯具601设置有包括两组光路：激光照明光路和激光安全防护光路。激光照明光路利用荧光片对短波长(通常为蓝色)高能激光进行波长转换，将其转化为(近)白色光，经过反光片反射到灯具之外，以实现照明功能。但是在荧光片脱落或损伤时，高能激光可能直接经反光片反射到照明区域，因而存在安全问题。本实施例的激光安全防护光路利用激光强的指向性，通过在反光片上设计光通过部抑制直射激光经反光片反射到照明区域，将激光导入到激光波长转换光路以实现警示功能。In this embodiment, the lamp 601 is provided with two sets of optical paths: a laser lighting optical path and a laser safety protective optical path. The laser illumination optical path utilizes a fluorescent sheet to convert the short-wavelength (usually blue) high-energy laser light to convert it into (near) white light, which is reflected outside the lamp through the reflective sheet to realize the lighting function. However, when the fluorescent sheet falls off or is damaged, the high-energy laser may be directly reflected to the illuminated area through the reflective sheet, so there is a safety problem. The laser safety protection optical path of this embodiment utilizes the strong directivity of the laser. By designing the light passing portion on the reflector to suppress the direct laser light from being reflected to the illumination area through the reflector, the laser is introduced into the laser wavelength conversion optical path to realize the warning function.
区别于现有技术，本申请实施例照明装置至少包括：光源，用于出射激光；荧光片，设置在光源的出光侧，用于对激光进行波长转换或使激光发生散射；光反射装置，包括：反光片，设置在荧光片的出光侧， 用于将来自荧光片的光反射至第一光出射通道出射，反光片设有一光通过部，光通过部与荧光片对应设置；光防护部，设置在反光片远离荧光片的一侧，光防护部设有第二光出射通道，第二光出射通道的光入口与光通过部对应设置；在警示模式下，激光经光通过部入射至第二光出射通道出射。通过这种方式，荧光片正常工作时，光源出射的激光经荧光片波长转换或者散射之后，由反光片通过反射至照明装置外，以使照明装置工作于照明模式；在荧光片从配置位置脱落或者损坏而不能正常对激光散射和波长转化时，光源出射的激光经反光片上的光通过部及第二光出射通道将激光进行放射，能够实现警示功能，以使照明装置工作于警示模式，同时防止激光直接由反光片反射至照明装置之外，避免造成安全问题。Different from the prior art, the lighting device in the embodiment of the present application at least includes: a light source for emitting laser light; a fluorescent sheet, which is provided on the light emitting side of the light source, is used for wavelength conversion or scattering of the laser light; and a light reflecting device includes : Reflective sheet, set on the light emitting side of the fluorescent sheet, used to reflect the light from the fluorescent sheet to the first light exit channel for exit, the reflective sheet is provided with a light passing part, the light passing part corresponding to the fluorescent sheet is provided; the light protection part, It is installed on the side of the reflective sheet far away from the fluorescent sheet. The light protection part is provided with a second light exit channel. The light entrance of the second light exit channel is corresponding to the light passing part. In the warning mode, the laser light enters the first through the light passing part. Two light exit channel exit. In this way, when the fluorescent sheet is working normally, the laser light emitted by the light source is converted or scattered by the wavelength of the fluorescent sheet, and then reflected by the reflective sheet to the outside of the lighting device, so that the lighting device works in the lighting mode; Or if it is damaged and cannot normally scatter the laser light and convert the wavelength, the laser light emitted by the light source will radiate the laser light through the light passing portion on the reflector and the second light exit channel, which can realize the warning function to make the lighting device work in the warning mode. Prevent the laser light from being directly reflected by the reflector to the outside of the lighting device to avoid safety problems.
本申请灯具可以为车灯，手电筒，头灯等。The lamps and lanterns of this application can be car lamps, flashlights, headlights, etc.
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。The above are only the embodiments of the present application, and therefore do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by the description and drawings of this application, or directly or indirectly used in other related technologies In the field, the same reason is included in the scope of patent protection of this application.

Claims (10)

  1. 一种照明装置，其特征在于，所述照明装置至少包括：A lighting device, characterized in that the lighting device includes at least:
    光源，用于出射激光；Light source, used to emit laser;
    荧光片，设置在所述光源的出光侧，用于对所述激光进行波长转换或使所述激光发生散射；A fluorescent sheet is provided on the light exit side of the light source, and is used for wavelength conversion of the laser light or scattering of the laser light;
    光反射装置，包括：Light reflecting device, including:
    反光片，设置在所述荧光片的出光侧，用于将来自所述荧光片的光反射至第一光出射通道出射，所述反光片设有一光通过部，所述光通过部与所述荧光片对应设置；A reflective sheet is provided on the light emitting side of the fluorescent sheet, and is used to reflect the light from the fluorescent sheet to the first light exit channel for exit. The reflective sheet is provided with a light passing portion, the light passing portion and the Corresponding setting of fluorescent film;
    光防护部，设置在所述反光片远离所述荧光片的一侧，所述光防护部设有第二光出射通道，所述第二光出射通道的光入口与所述光通过部对应设置；A light protection part is provided on a side of the reflective sheet away from the fluorescent sheet, the light protection part is provided with a second light exit channel, and the light entrance of the second light exit channel is corresponding to the light passing part ;
    在警示模式下，所述激光经所述光通过部入射至所述第二光出射通道出射。In the warning mode, the laser light is incident on the second light exit channel through the light passing portion and exits.
  2. 根据权利要求1所述的照明装置，其特征在于，所述第二光出射通道包括透明基体，所述反光片包括覆盖在所述透明基体靠近所述光源一侧的反射层。The lighting device according to claim 1, wherein the second light exit channel includes a transparent substrate, and the reflective sheet includes a reflective layer covering a side of the transparent substrate close to the light source.
  3. 根据权利要求2所述的照明装置，其特征在于，所述光防护部进一步包括遮光层，所述遮光层覆盖在所述透明基体远离所述反射层的一侧，所述遮光层用于对入射到所述遮光层的激光进行吸收或者波长转换。The lighting device according to claim 2, wherein the light shielding portion further includes a light-shielding layer covering the side of the transparent substrate away from the reflective layer, the light-shielding layer is used for The laser light incident on the light shielding layer undergoes absorption or wavelength conversion.
  4. 根据权利要求2所述的照明装置，其特征在于，所述光反射装置进一步包括嵌设在所述透明基体中的光探测器，所述光探测器用于对入射到所述透明基体中的所述激光的光强度进行检测。The lighting device according to claim 2, wherein the light reflection device further comprises a photodetector embedded in the transparent substrate, the photodetector is used to detect the incident light incident on the transparent substrate The light intensity of the laser is detected.
  5. 根据权利要求1所述的照明装置，其特征在于，所述第二光出射通道包括沿光路方向依次设置的光导入部、光散射部和波长转换部，所述光导入部与所述光通过部连接。The lighting device according to claim 1, wherein the second light exit channel includes a light introduction part, a light scattering part, and a wavelength conversion part that are sequentially provided along the light path direction, and the light introduction part and the light pass through部 连接。 Department connection.
  6. 根据权利要求5所述的照明装置，其特征在于，所述光反射装置进一步包括设置在所述光导入部的第一光探测器、设置在所述光散射部的第二光探测器及设置在所述波长转换部的第三光探测器。The lighting device according to claim 5, wherein the light reflecting device further comprises a first photodetector provided in the light introduction part, a second photodetector provided in the light scattering part, and a set The third photodetector in the wavelength conversion section.
  7. 根据权利要求5所述的照明装置，其特征在于，所述照明装置进一步包括光学元件，设置在所述第二光出射通道，用于将从所述光转换部出射的光形成图案化出射光。The lighting device according to claim 5, characterized in that the lighting device further comprises an optical element provided in the second light exit channel for forming patterned exit light from the light conversion portion .
  8. 根据权利要求5所述的照明装置，其特征在于，在警示模式下，所述波长转换部对入射至所述第二光出射通道的光进行波长转换，以使通过所述第二光出射通道出射的光为第一颜色的光，通过所述第一光通道出射的光为第二颜色的光，所述第一颜色与所述第二颜色不同；The lighting device according to claim 5, wherein in the warning mode, the wavelength conversion unit performs wavelength conversion on the light incident on the second light exit channel so as to pass through the second light exit channel The emitted light is light of a first color, and the light emitted through the first light channel is light of a second color, and the first color is different from the second color;
    在照明模式下，所述荧光片对所述激光进行波长转换，以使通过所述第一光出射通道出射的光为第三颜色的光，通过所述第二光通道出射的光为第四颜色的光，所述第三颜色与所述第四颜色相同。In the illumination mode, the fluorescent sheet converts the wavelength of the laser light so that the light exiting through the first light exit channel is light of a third color, and the light exiting through the second light channel is fourth In the light of colors, the third color is the same as the fourth color.
  9. 根据权利要求1所述的照明装置，其特征在于，所述照明装置进一步包括：The lighting device according to claim 1, wherein the lighting device further comprises:
    聚光透镜，设置在所述光源与所述荧光片之间，用于将所述激光进行聚光整形后出射至所述荧光片；A condensing lens, which is arranged between the light source and the fluorescent sheet, is used for condensing and shaping the laser light, and then exits to the fluorescent sheet;
    散热装置，设置在所述光源的侧边。The heat dissipation device is arranged on the side of the light source.
  10. 一种车灯，其特征在于，包括权利要求1至9中任一项所述的照明装置。A vehicle lamp, characterized by comprising the lighting device according to any one of claims 1 to 9.
PCT/CN2019/116985 2018-11-20 2019-11-11 Lighting device, and lamp WO2020103713A1 (en)

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