CN209819431U

CN209819431U - Laser lighting system

Info

Publication number: CN209819431U
Application number: CN201921057603.XU
Authority: CN
Inventors: 李龙; 徐君
Original assignee: Zhejiang Lojing Optoelectronic Technology Co Ltd
Current assignee: Zhejiang Lojing Optoelectronic Technology Co Ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2019-12-20
Anticipated expiration: 2029-07-08

Abstract

The utility model relates to a laser lighting system belongs to the lighting technology field, and this laser lighting system includes the support body, sets up be used for forming the short-distance beam module of short-distance beam and the distance light module, the control that are used for forming the distance light on the support body the control system, the setting of short-distance beam module and distance light module are in lens in short-distance beam module and distance light module the place ahead, the short-distance beam module includes the LED light source that is used for sending the short-distance beam, the distance light module includes: the device comprises a laser, a first reflector, a dichroic sheet with a first surface and a second surface which are arranged oppositely, a second reflector and a static or rotating fluorescent powder system for converting exciting light into converted light; one of the exciting light and the converted light is blue light, the other one is yellow light, white high beam is synthesized, the laser lighting system uses components such as a laser and a static or rotating fluorescent powder system to form high beam irradiation, an LED light source is used for low beam irradiation, and switching is performed through a control system, so that the requirements of high beam luminous intensity and lighting distance are met, and the purpose of overall size miniaturization is realized. Meanwhile, the high beam illumination system is an independent high beam system, so that the irradiation distance and the illumination effect can be more effectively improved.

Description

Laser lighting system

Technical Field

The utility model relates to a laser lighting system belongs to the lighting technology field.

Background

The existing automobile headlamp is usually a halogen lamp, a xenon lamp or an LED lamp, however, the halogen lamp and the xenon lamp are large in size, low in photoelectric conversion efficiency and large in light beam divergence angle, so that the light intensity is low, and the illumination distance is limited. Although the photoelectric conversion efficiency of the LED lamp is improved relative to that of a halogen lamp and a xenon lamp, the divergence angle is difficult to control to be within 10 degrees, and in order to improve the illumination distance, a plurality of LEDs are required to be arranged in an array mode to improve the output power, so that the size, the weight and the difficulty of optical adjustment of the device are greatly improved, the illumination distance and the luminous intensity cannot meet the actual requirement in a high beam mode, the penetrability is poor, and potential safety hazards exist in foggy weather.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laser lighting system, it adopts components such as laser instrument, static or rotation phosphor powder system to shine as the distance beam, and the LED light source shines as the short-distance beam, has both satisfied the needs of distance beam luminous intensity and illumination distance, has realized holistic small in size's purpose again.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a laser lighting system, includes the support body, sets up be used for forming the passing beam module of passing beam and the distance light module, the control that are used for forming the distance light on the support body the control system, the setting of passing beam module and distance light module are in lens in passing beam module and distance light module the place ahead, the passing beam module includes the LED light source that is used for sending the passing beam, the distance light module includes: the device comprises a laser, a first reflector, a dichroic sheet with a first surface and a second surface which are arranged oppositely, a second reflector and a static or rotating fluorescent powder system for converting exciting light into converted light; one of the exciting light and the converted light is blue light, and the other one is yellow light;

wherein the laser emits excitation light to the first mirror, the first mirror reflects the received excitation light to the first side of the dichroic sheet, a portion of the excitation light is reflected from the first side of the dichroic sheet to the static or rotating phosphor system, the static or rotating phosphor system converts the excitation light into converted light and projects the converted light to the first side of the dichroic sheet, the converted light is transmitted outward from the bi-static or rotating phosphor system, another portion of the excitation light is transmitted through the dichroic sheet and projects the second mirror, the second mirror reflects the portion of the excitation light to the second side of the dichroic sheet, and the second side reflects the portion of the excitation light while the portion of the excitation light and the converted light merge to form white high beam.

Further, the high beam module further comprises a focusing mirror located outside the dichroic sheet to focus the high beam.

Further, the high beam module further comprises a first convex lens arranged between the dichroic film and the static or rotating fluorescent powder system, a second convex lens arranged between the dichroic film and the second reflector and a third convex lens arranged between the dichroic film and the first reflector.

Further, the number of the lasers is two or more.

Further, still be provided with collimation beam expanding lens on the support body, collimation beam expanding lens with lens are coaxial, low beam and distance beam pass through behind the collimation beam expanding lens shine into again to lens.

Further, the dipped beam module also comprises a third reflector arranged on the frame body, and the third reflector transmits the light emitted by the LED light source to the lens.

Further, the reflecting surface of the third reflector is an arc-shaped surface.

Further, the support body is including erecting the end plate and certainly erect the horizontal fixed plate that the end plate extends the formation backward, erect the end plate and be the T type with horizontal fixed plate, lens are fixed erect on the end plate, passing light module and distance light module relatively fixed the upper and lower both sides of horizontal fixed plate.

Furthermore, openings for passing the near light and the far light are formed in the vertical end plate.

Further, still be provided with heat abstractor on the support body, heat abstractor sets up the rear of passing light module and distance light module.

Compared with the prior art, the utility model discloses a laser lighting system forms white distance light with laser instrument and static or rotate subassembly such as phosphor powder system and shines, and the LED light source shines as the short-distance beam to switch through control system, both satisfied the needs of distance light luminous intensity and illumination distance, realized whole small-size's purpose again.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic view of an overall structure of a laser lighting system according to an embodiment of the present invention;

FIG. 2 is an exploded view of the laser illumination system shown in FIG. 1;

fig. 3 is a schematic view of a high beam module used in the laser illumination system shown in fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

It should be noted that: the terms such as "upper", "lower", "left", "right", "inner" and "outer" of the present invention are described with reference to the drawings, and are not intended to be limiting terms.

The laser headlamp has most of the advantages of the LED headlamp, such as high response speed, low brightness attenuation, small volume, low energy consumption, long service life and the like. Compared with the LED headlight laser headlight, the laser headlight has advantages particularly in terms of volume, the length of a single laser diode element can be made 10 micrometers, which is only 1/100 of the size of a conventional LED element, which means that the size of the headlight of a conventional automobile can be greatly reduced by the structural design, which may bring revolutionary changes to the design proportion of each element on the front face of the automobile, and the laser headlight is more energy-saving and more fuel-saving in terms of luminous efficiency.

Referring to fig. 1 to 3, a laser lighting system according to an embodiment of the present invention includes a frame body 1, a low beam module disposed on the frame body 1 for forming a low beam, a high beam module 2 for forming a high beam, a control system (not shown) for controlling the low beam module and the high beam module 2, and a lens 4 disposed in front of the low beam module and the high beam module 2, wherein the low beam module includes an LED light source 51 for emitting a low beam, and the high beam module 2 includes: a laser 21, a first mirror 22, a dichroic sheet 23 having oppositely disposed first and second faces 231, 232, a second mirror 25, a static or rotating phosphor system 24 for converting excitation light into converted light; one of the excitation light and the converted light is blue light, and the other is yellow light. In this embodiment, the dichroic sheet has a function of reflecting blue and transmitting yellow, the excitation light is blue light (blue laser light), and the converted light is yellow light (yellow converted light). In fig. 3, excitation light is indicated by a dashed-solid dotted line, and converted light is indicated by a dotted line.

The laser 21 emits excitation light to the first mirror 22, the first mirror 22 reflects the received excitation light to the first side 231 of the dichroic plate 23, a portion (approximately 80% or so) of the excitation light is reflected by the first side 231 of the dichroic plate 23 to the static or rotating phosphor system 24, the static or rotating phosphor system 24 converts the excitation light into converted light and projects it onto the first face 231 of the dichroic plate 23, the converted light is transmitted outward from the dichroic static or rotating phosphor system 24, another portion (approximately 20% or so) of the excitation light is transmitted through the dichroic plate 23 to the second mirror 25, the second mirror 25 reflects the portion of the excitation light to the second face 232 of the dichroic filter 23, the second surface 232 reflects the part of the excitation light and the part of the excitation light is combined with the converted light to form a white high beam with adjustable color temperature.

It should be noted that, in the present invention, the lighting system is a car lamp. The control system respectively controls the high beam module 2 and the low beam module to work, and in detail, the control system respectively controls the laser 21 and the LED light source 51 in the high beam module 2 to be turned on or turned off, so that the effects of switching the high beam and the low beam or illuminating at the same time are achieved. The control system is used to control the lighting conditions (i.e. the on-off conditions) of the high beam module 2 and the low beam module, and the control system can adopt the conventional control modules and circuits in the existing automobile, and the details thereof are not described herein. The lens is a convex lens having a plane facing the high beam module 2 and the low beam module (i.e., disposed inward), and an arc-shaped convex surface facing away from the high beam module 2 and the low beam module (i.e., disposed inward). In this embodiment, in order to improve the illumination effect, a collimation and beam expansion lens (not shown) is further disposed on the frame body 1, the collimation and beam expansion lens is coaxial with the lens 4, and the near light and the far light pass through the collimation and beam expansion lens and then irradiate the lens 4.

In the present embodiment, the high beam module 2 further includes a focusing lens 26 located outside the dichroic sheet 23 to focus the high beam, a first convex lens 27 disposed between the dichroic sheet 23 and the static or rotating phosphor system 24, a second convex lens 28 disposed between the dichroic sheet 23 and the second mirror 25, and a third convex lens 29 disposed between the dichroic sheet 23 and the first mirror 22. In order to increase the high beam irradiation intensity, the number of the lasers 21 is two in the present embodiment, but of course, in other embodiments, the number of the lasers may be two or more, and the specific number may be selected according to the actual required brightness and the like. The luminous intensity of every tile of traditional LED headlight is 100 lumens, and the utility model discloses a distance light module 2 can reach 170 lumens per tile, and the irradiation distance can reach 600 meters, is the twice of LED lamp. In this embodiment, the operating temperature of the high beam module 2 is 0 to 75 ℃, which is wider in range and stronger in adaptability compared with the LED lamp (40 to 60 ℃). Simultaneously, because this 2 penetrability of distance light module is strong, under the bad weather condition such as heavy fog, heavy rain, heavy snow, safer.

In this embodiment, the low beam module further includes a third reflector 52 disposed on the frame body 1, and the third reflector 52 transmits light emitted from the LED light source 51 to the lens 4. The reflecting surface of the third reflector 52 is an arc surface.

In this embodiment, the support body 1 includes vertical end plate 13 and certainly vertical end plate 13 extends the horizontal fixed plate 11 that forms backward, vertical end plate 13 is the T type with horizontal fixed plate 11, lens 4 is fixed on vertical end plate 13, low beam module and distance beam module 2 relatively fixed be in the upper and lower both sides of horizontal fixed plate 11. The vertical end plate 13 is provided with openings 12 for passing the low beam and the high beam, respectively, so that the whole structure is more compact.

Still be provided with heat abstractor on the support body 1, heat abstractor sets up the rear of passing light module and distance light module 2 the utility model discloses in, this heat abstractor is fan 6, and fan 6 leads outside wind to passing light module and distance light module 2 in order to dispel the heat for passing light module and distance light module 2.

In summary, the following steps: the utility model discloses a laser lighting system forms white distance light with laser instrument 21 and static or rotate subassembly such as phosphor powder system 24 and shines, and LED light source 51 shines as the short-distance beam to switch through control system, both satisfied the needs of distance light luminous intensity and illumination distance, realized whole small-size's purpose again.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a laser lighting system, its characterized in that includes the support body, sets up be used for forming the passing beam module of passing beam and the distance light module, the control that are used for forming the distance light on the support body the control system, the setting of passing beam module and distance light module are in lens in passing beam module and distance light module the place ahead, the passing beam module includes the LED light source that is used for sending the passing beam, the distance light module includes: the device comprises a laser, a first reflector, a dichroic sheet with a first surface and a second surface which are arranged oppositely, a second reflector and a static or rotating fluorescent powder system for converting exciting light into converted light; one of the exciting light and the converted light is blue light, and the other one is yellow light;

wherein the laser emits excitation light to the first mirror, the first mirror reflects the received excitation light to the first side of the dichroic sheet, a portion of the excitation light is reflected by the first side of the dichroic sheet to the static or rotating phosphor system, the static or rotating phosphor system converts the excitation light into converted light and projects the converted light to the first side of the dichroic sheet, the converted light is transmitted outward from the dichroic sheet, another portion of the excitation light is transmitted through the dichroic sheet and projected to the second mirror, the second mirror reflects the portion of the excitation light to the second side of the dichroic sheet, and the second side reflects the portion of the excitation light while the portion of the excitation light and the converted light merge to form white high beam.

2. The laser illumination system of claim 1, wherein the high beam module further comprises a focusing mirror outside the dichroic sheet to focus the high beam.

3. The laser illumination system of claim 1 or 2, wherein the high beam module further comprises a first convex lens disposed between the dichroic plate and the static or rotating phosphor system, a second convex lens disposed between the dichroic plate and the second mirror, and a third convex lens disposed between the dichroic plate and the first mirror.

4. The laser illumination system of claim 1, wherein the number of lasers is two or more.

5. The laser illumination system of claim 1, wherein the frame body is further provided with a collimating and beam expanding lens, the collimating and beam expanding lens is coaxial with the lens, and the near light and the far light pass through the collimating and beam expanding lens and then irradiate the lens.

6. The laser lighting system as claimed in claim 1, wherein the low beam module further comprises a third reflector disposed on the frame, the third reflector transmitting the light emitted from the LED light source to the lens.

7. The laser illumination system of claim 6, wherein the reflective surface of the third reflector is an arcuate surface.

8. The laser lighting system as claimed in claim 1, wherein the frame body comprises a vertical end plate and a transverse fixing plate extending backward from the vertical end plate, the vertical end plate and the transverse fixing plate are T-shaped, the lens is fixed on the vertical end plate, and the low beam module and the high beam module are fixed on the upper and lower sides of the transverse fixing plate.

9. The laser lighting system of claim 8, wherein the vertical end plate has openings for passing the low beam and the high beam, respectively.

10. The laser lighting system of claim 1, wherein a heat sink is further disposed on the frame, the heat sink being disposed behind the low beam module and the high beam module.