WO2017101773A1

WO2017101773A1 - Light source system and illumination system

Info

Publication number: WO2017101773A1
Application number: PCT/CN2016/109806
Authority: WO
Inventors: 陈志�; 李屹
Original assignee: 深圳市绎立锐光科技开发有限公司
Priority date: 2015-12-16
Filing date: 2016-12-14
Publication date: 2017-06-22
Also published as: CN205350946U; EP3392549B1; EP3392549A1; EP3392549A4

Abstract

Disclosed is a light source system, comprising a first lighting subsystem, a light source shaping subsystem, and a second lighting subsystem located between the first lighting subsystem and the light source shaping subsystem. The first lighting subsystem comprises: a laser light source array (11); a wavelength conversion device (12) provided on a light exit path of the laser light source array (11), the wavelength conversion device (12) comprising at least one wavelength conversion zone (121). The second lighting subsystem comprises: a first LED array (21) provided on a light exit path of the wavelength conversion device (12), a light-emitting surface of the first LED array (21) facing away from the wavelength conversion device (12), and the first LED array (21) comprising a light through hole (211) coinciding with the light exit path of the wavelength conversion device (12). The light source shaping subsystem comprises: an integral lens group (31) provided on a light exit path of the first LED array (21); a first condensing lens (32) provided on one side of the integral lens group (31), facing away from the first LED array (21); a movable condensing device (33) provided on the side of the first condensing lens (32) facing away from the integral lens group (31), the movable condensing device (33) being able to move into or move out of a light exit path of the first condensing lens (32), improving the light flux output, and switching the size of a light spot of the light emitted from the light source system. Further disclosed is an illumination system comprising such a light source system.

Description

Light source system and lighting system

Technical field

The utility model relates to the technical field of illumination, and more particularly to a light source system and a lighting system.

Background technique

LED (Light Emitting Diode) It is a semiconductor solid-state light source that can directly convert electricity into visible light. It has the advantages of long life, high luminous efficiency, no radiation and low power consumption compared with conventional light sources. With the intensification of energy shortages and climate warming that have plagued the world in recent years, semiconductor LEDs The application of light sources in various industries has become more and more popular, and there is a tendency to replace traditional light sources.

technical problem

For the current technology, the maximum luminous flux of a single LED chip (1mm × 1mm size) does not exceed 300 under normal working conditions. Lumens (lm). For some light source systems that require a high luminous flux output, this can be achieved by an LED array. However, if the light source system is required to reach the traditional halogen lamp (1200W-1500W) The luminous flux output requires a very large number of LED chips in the LED array, resulting in a large volume of the light source system that is not suitable for some applications. For example, using LEDs If the array stage lighting is to achieve the luminous flux output of a conventional halogen lamp (1200W-1500W), the volume of the stage luminaire will far exceed the user's acceptance range and thus cannot be applied.

In the prior art, a laser diode (LD, Laser Diode) It has a much higher brightness than the LED, so the LD's light source system can effectively control the volume while achieving high luminous flux output. However, in the LD of various colors, even the cost of the cheapest blue LD is much higher than the cost of the LED, and the cost of the green LD and the red LD is much higher than the cost of the blue LD. However, in the existing light source system, the green and red components are often weak and need to be improved. Therefore, if LD is used instead of LED to improve the luminous flux output of the light source system, it is often necessary to use green and red LD which are particularly expensive. The cost of the light source system is greatly increased. Therefore, in the prior art, when the light source system is made to achieve a high luminous flux output, the volume and cost of the light source system cannot be effectively controlled at the same time.

Technical solution

In view of the above, the utility model provides a light source system and a lighting device, which are used by mixing an LED array and a laser light source array to supplement the light emission of the LED array, improve the luminous flux output, and at the same time effectively control the volume and cost of the light source system; In addition, the size of the light spot of the light source system is switched by moving in or out of the movable concentrating device in the light source system.

In order to achieve the above object, the technical solution provided by the present invention is as follows:

A light source system includes: a first illumination subsystem, a light source shaping subsystem, and a second illumination subsystem located between the first illumination subsystem and the light source shaping subsystem;

Wherein the first illumination subsystem comprises: an array of laser sources, the array of laser sources comprising at least one laser source;

a wavelength conversion device disposed on the light path of the laser light source array, the wavelength conversion device comprising at least one wavelength conversion region;

The second illumination subsystem includes: a first LED array disposed on an outgoing light path of the wavelength conversion device, a light emitting surface of the first LED array faces away from the wavelength conversion device, and the first LED array includes a first light-passing aperture that coincides with the light-emitting path of the wavelength conversion device;

And the light source shaping subsystem includes: an integrating lens group disposed on the light outgoing path of the first LED array;

a first concentrating lens disposed on a side of the integrator lens group facing away from the first LED array;

And a movable concentrating device disposed on a side of the first condensing lens facing away from the integrator lens group, wherein the movable concentrating device is capable of moving in or out of an optical illuminating path of the first concentrating lens.

Preferably, the first lighting subsystem further comprises:

a mirror disposed on the illuminating light path of the laser light source for reflecting laser light emitted by the laser light source;

And a color separation device disposed on the reflected light path of the mirror and located between the wavelength conversion device and the first light passing hole for reflecting the laser light reflected by the mirror to the wavelength conversion device Any one of the wavelength conversion regions, and transmits the excitation light emitted by the excitation of the laser to the first light-passing aperture.

Preferably, the first lighting subsystem further comprises:

a first collimating lens disposed on the light emitting path of the laser light source and located between the laser light source and the mirror;

And a second concentrating lens disposed between the wavelength conversion device and the color separation device.

Preferably, the first LED array comprises:

Multiple LED chips;

And a second collimating lens disposed on the light emitting path of the LED chip.

Preferably, the second illuminating subsystem further comprises:

a heat pipe substrate disposed on a back surface of the first LED array and located between the first LED array and the first light emitting subsystem, and the first light passing hole is transmitted through the heat pipe substrate.

Preferably, the second illuminating subsystem further comprises:

a second LED array and a third LED array disposed on opposite sides of the first LED array and disposed perpendicular to the first LED array, the first LED array, the second LED array, and the third LED array Different colors of light;

And a light combining device disposed between the second LED array and the third LED array.

Preferably, the light combining device comprises:

a first two-color sheet and a second two-color sheet disposed in an X shape;

Wherein the first dichroic sheet reflects light emitted by the second LED array to the integrator lens group, and the first dichroic sheet transmits the first LED array and the third LED array The second dichroic sheet reflects light emitted by the third LED array to the integrator lens group, and the second dichroic sheet transmits the first LED array and the second LED array The light emitted.

Preferably, the light combining device further includes a second light passing hole that coincides with the light exiting path of the wavelength converting device.

Preferably, the movable concentrating device comprises:

Lens barrel

At least one third concentrating lens disposed in the lens barrel;

And a rotating shaft fixedly connected to the lens barrel, wherein the rotating shaft is used to drive the lens barrel to turn into or out of the light exiting path of the first collecting lens.

Accordingly, the present invention also provides an illumination system including the above-described light source system.

Beneficial effect

Compared with the prior art, the technical solution provided by the present invention has at least the following advantages:

The utility model provides a light source system and a lighting device, comprising: a first lighting subsystem, a light source shaping subsystem and a second lighting subsystem located between the first lighting subsystem and the light source shaping subsystem; wherein The first illumination subsystem includes: a laser light source array, the laser light source array includes at least one laser light source; a wavelength conversion device disposed on an exit light path of the laser light source array, the wavelength conversion device including at least one wavelength conversion The second illumination subsystem includes: a first LED array disposed on an outgoing light path of the wavelength conversion device, the light emitting surface of the first LED array faces away from the wavelength conversion device, and the first LED The array includes a first light-passing aperture that coincides with the light-emitting path of the wavelength conversion device; and the light source shaping subsystem includes: an integrating lens group disposed on the light-emitting path of the first LED array; a first concentrating lens facing away from the first LED array side; the first concentrating lens is disposed away from the integral permeable lens Group side movable focusing means, said collecting means can be movable into or out of the first condenser lens the light path.

It can be seen from the above that the technical solution provided by the present invention uses a combination of an LED array and a laser light source array to supplement the light emission of the LED array, improve the luminous flux output, and at the same time effectively control the volume and cost of the light source system; In the light source system, the movable concentrating device is moved in or out to switch the size of the light spot of the light source system.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is merely an embodiment of the present invention, and those skilled in the art can obtain other drawings according to the provided drawings without any creative work.

1 is a schematic structural diagram of a light source system according to an embodiment of the present application;

2 is a schematic structural diagram of a first illuminating subsystem according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a second illuminating subsystem according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of another light source system according to an embodiment of the present application.

BEST MODE FOR CARRYING OUT THE INVENTION

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As described in the background art, in the prior art, when the light source system is made to achieve a high luminous flux output, the volume and cost of the light source system cannot be effectively controlled at the same time.

Based on this, the embodiment of the present application provides a light source system and a lighting device, which are used by mixing an LED array and a laser light source array to supplement the light emission of the LED array, improve the luminous flux output, and effectively control the volume and cost of the light source system; In addition, the size of the light spot of the light source system is switched by moving in or out of the movable concentrating device in the light source system. The technical solutions provided by the embodiments of the present application are as follows. The technical solutions provided by the embodiments of the present application are described in detail in conjunction with FIG. 1 to FIG.

Referring to FIG. 1 , a schematic structural diagram of a light source system according to an embodiment of the present disclosure, where the light source system includes:

a first illumination subsystem, a light source shaping subsystem, and a second illumination subsystem located between the first illumination subsystem and the light source shaping subsystem;

The first illumination subsystem includes: a laser source array 11, the laser source array 11 includes at least one laser source 111;

a wavelength conversion device 12 disposed on the light path of the laser light source array 11, the wavelength conversion device 12 includes at least one wavelength conversion region 121;

The second illumination subsystem includes: a first LED array 21 disposed on the light path of the wavelength conversion device 12, the light emitting surface of the first LED array 21 faces away from the wavelength conversion device 12, and the An LED array 21 includes a first light-passing aperture 211 that coincides with the light-emitting path of the wavelength conversion device 12;

The light source shaping subsystem includes: an integrating lens group 31 disposed on the light outgoing path of the first LED array 21;

a first collecting lens 32 disposed on a side of the integrator lens group 31 facing away from the first LED array 21;

a movable concentrating device 33 disposed on a side of the first condensing lens 32 facing away from the integrator lens group 31, the movable concentrating device 33 being capable of moving in or out of the light illuminating path of the first condensing lens 32 .

It should be noted that, in the light source system provided by the embodiment of the present application, the switch of the laser light source array and the current intensity thereof can be controlled by a controller electrically connected to the laser light source array to implement switching of the first illumination subsystem. Control and adjustment of the intensity of its light source.

In the light source system provided by the embodiment of the present application, the laser light emitted by the laser light source is incident on the wavelength conversion device; the wavelength conversion region of the wavelength conversion device is excited by the laser to emit excitation light; after the excitation light passes through the first light transmission hole, and the first The photosynthetic light emitted by the LED array is incident on the light source shaping subsystem; the combined light is first incident on the integrator lens group, the incident lens is homogenized by the integrator lens group, and then emitted to the first collecting lens and emitted through the first collecting lens. Wherein, when the light source system is required to emit the light of the small spot, the movable concentrating device can be moved into the light exiting path of the first collecting lens, and the emitted light of the first collecting lens is further concentrated by the movable concentrating device. When the light is emitted, not only the light spot can be emitted by a small spot, but also the beam effect can be generated. When the light source system needs to emit the light of the large spot, the movable concentrating device can be removed from the light exiting path of the first concentrating lens to be the first concentrating. The light from the light lens directly acts as a light source for the light source system.

It should be noted that, in the light source system provided by the embodiment of the present application, the laser light source array and the first LED array can be illuminate at the same time, and can also be illuminate at different times, which needs to be designed according to the actual application, which is not used in the embodiment of the present application. Specific restrictions.

In addition, in the light source system of the embodiment of the present application, the color of the single laser light source of the laser light source array and the single LED chip of the first LED array are not specifically limited, and the light or the light source system required by the first light emitting subsystem is required. The color of the light that needs to be emitted is specifically designed. The wavelength conversion region is a phosphor region. The color of the phosphor region is not specifically limited in the embodiment of the present application. When the first illumination subsystem is required to emit white light, the laser source array may be set as a blue laser source array, and the wavelength is set. One wavelength conversion region of the conversion device is set as a yellow phosphor region; or the laser light source array is set as an ultraviolet laser light source array, and one wavelength conversion region of the wavelength conversion device is set as a green phosphor region. Wherein, when the light source system needs to emit white light, the wavelength conversion device can be excited by the laser light source array to emit excitation light of any one of red, green and blue, and the first LED array emits light of two other colors, and then passes through The photosynthetic light of the three colors is white light.

In the embodiment shown in FIG. 1 , the wavelength conversion device is a light-transmitting wavelength conversion device, and the wavelength conversion device provided in the embodiment of the present application may also be a reflective wavelength conversion device. 2 is a schematic structural diagram of a first illuminating subsystem according to an embodiment of the present disclosure, where the first illuminating subsystem further includes:

a mirror 13 disposed on the light emitting path of the laser light source 111 for reflecting the laser light emitted by the laser light source 111;

And a color separation device 14 disposed on the reflected light path of the mirror 13 and located between the wavelength conversion device 12 and the first light passing hole 211 for reflecting the laser light reflected by the mirror 13 to Any one of the wavelength conversion regions 121 of the wavelength conversion device 12 transmits the excitation light emitted by the excitation of the laser light to the first light-passing aperture 211.

And, in order to improve the light-emitting effect, the first illumination subsystem provided by the embodiment of the present application further includes:

a first collimating lens 15 disposed on the light emitting path of the laser light source 111 and located between the laser light source 111 and the mirror 13;

And a second condensing lens 16 disposed between the wavelength conversion device 12 and the color separation device 14.

Specifically, in the first illumination subsystem shown in FIG. 2 of the embodiment of the present application, the laser light emitted by the laser light source is incident on the mirror corresponding thereto; the mirror reflects the incident laser light to the color separation device, wherein the color separation device may be a two-color direction sheet; since the color separation device is configured to reflect a laser of a certain color emitted by the laser light source and transmit the excitation light of another color excited by the laser in the wavelength conversion region, color separation by the color separation device excites Light is emitted to the first light passing hole.

The first LED array provided by the embodiment of the present application may include: a plurality of LED chips; and a second collimating lens disposed on the light emitting path of the LED chip, and the second collimating lens is used to improve the LED chip. Luminous effect. The circuit board of the first LED array provided by the embodiment of the present application may be a copper substrate or a substrate of another material, which is not specifically limited in this embodiment.

In addition, in order to improve the heat dissipation effect of the light source system, reference is made to FIG. 3, which is a schematic structural diagram of a second illuminating subsystem according to an embodiment of the present disclosure, where the second illuminating subsystem provided by the embodiment of the present application further includes:

a heat pipe substrate 22 disposed on the back surface of the first LED array 21 and located between the first LED array 21 and the first light emitting subsystem, and the first light passing hole 211 is transmitted through the heat pipe substrate 22 The embodiment of the present application does not specifically limit the number of heat pipes on the heat pipe substrate.

In addition, the embodiment of the present application further provides another light source system. Referring to FIG. 4 , FIG. 4 is a schematic structural diagram of another light source system according to an embodiment of the present application. The second illumination subsystem further includes:

a second LED array 23 and a third LED array 24 disposed on opposite sides of the first LED array 21 and perpendicular to the first LED array 21, the first LED array 21 and the second LED array 23 and the third LED array 24 have different illuminating colors;

And a light combining device disposed between the second LED array 23 and the third LED array 24.

Wherein, the light combining device comprises:

a first two-color sheet 251 and a second two-color sheet 252 arranged in an X shape;

The first dichroic sheet 251 reflects the light emitted by the second LED array 23 to the integrator lens group 31, and the first dichroic sheet 251 transmits the first LED array 21 and Light emitted by the third LED array 24; the second dichroic sheet 252 reflects light emitted by the third LED array 24 to the integrator lens group 31, and the second dichroic sheet 252 transmits The light emitted by the first LED array 21 and the second LED array 23 is described.

Specifically, the light source system needs to emit white light, wherein the colors of the light emitted by the first LED array, the second LED array, and the third LED array are different, and are respectively any one of red, green, and blue. In addition, the laser light source array excites the excitation light emitted by the wavelength conversion device to be the same color as the light emitted by the first LED array, thereby preventing the light combining device from filtering the excitation light; or the excitation light emitted by the laser light source array excitation wavelength conversion device is White light. Preferably, the first LED array emits green light, the laser light source array emits blue, ultraviolet or near-ultraviolet laser light, and the wavelength conversion device is provided with a green phosphor so that the emission from the first illumination subsystem can be obtained. Green light.

Further, in order to ensure that the excitation light is non-destructively passed through the light combining device, the light combining device provided by the embodiment of the present application further includes a second light passing hole that coincides with the light exiting path of the wavelength converting device 12, as shown in FIG. 253.

In addition, as shown in FIG. 4, the movable concentrating device provided by the embodiment of the present application includes:

Lens barrel 331;

At least one third collecting lens 332 disposed in the lens barrel 331;

And a rotating shaft 333 fixedly connected to the lens barrel 331, and the rotating shaft 333 is configured to drive the lens barrel 331 to rotate into or out of the light collecting path of the first collecting lens 32.

Correspondingly, the embodiment of the present application further provides an illumination system, where the illumination system includes the above-described light source system.

An embodiment of the present application provides a light source system and a lighting device, including: a first lighting subsystem, a light source shaping subsystem, and a second lighting subsystem located between the first lighting subsystem and the light source shaping subsystem; The first illuminating subsystem includes: a laser light source array, the laser light source array includes at least one laser light source; a wavelength conversion device disposed on the light outgoing path of the laser light source array, the wavelength conversion device including at least one wavelength a conversion area; the second illumination subsystem includes: a first LED array disposed on a light path of the wavelength conversion device, the light emitting surface of the first LED array faces away from the wavelength conversion device, and the first The LED array includes a first light-passing aperture that coincides with the light-emitting path of the wavelength conversion device; and the light source shaping subsystem includes: an integrating lens group disposed on the light-emitting path of the first LED array; The integrating lens group faces away from the first concentrating lens on one side of the first LED array; and the first concentrating lens is disposed away from the integral Movable collecting device, the collecting device is capable of moving into or out of the first condenser lens group of the lens side of the light path.

It can be seen from the above that the technical solution provided by the embodiment of the present application uses a combination of an LED array and a laser light source array to supplement the illumination of the LED array, improve the luminous flux output, and at the same time effectively control the volume and cost of the light source system; Moving or removing the movable concentrating device in the light source system to switch the size of the light spot of the light source system.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but the scope of the invention.

Claims

A light source system, comprising: a first illumination subsystem, a light source shaping subsystem, and a second illumination subsystem located between the first illumination subsystem and the light source shaping subsystem;

2. The light source system of claim 1, wherein the first illumination subsystem further comprises:

And a color separation device disposed on the reflected light path of the mirror and located between the wavelength conversion device and the first light passing hole for reflecting the laser light reflected by the mirror to the wavelength conversion device Any one of the wavelength conversion regions, and projects the excitation light emitted by the excitation of the laser to the first light-passing aperture.

3. The light source system of claim 2, wherein the first illumination subsystem further comprises:

4. The light source system of claim 1 wherein the first array of LEDs comprises:

Multiple LED chips;

5. The light source system of claim 1, wherein the second illumination subsystem further comprises:

6. The light source system of claim 1, wherein the second illumination subsystem further comprises:

The light source system according to claim 6, wherein the light combining device comprises:

a first two-color sheet and a second two-color sheet disposed in an X shape;

The light source system according to claim 6, wherein the light combining device further comprises a second light passing hole that coincides with the light exiting path of the wavelength converting device.

9. The light source system of claim 1 wherein the movable concentrating device comprises:

Lens barrel

At least one third concentrating lens disposed in the lens barrel;

10. An illumination system, characterized in that the illumination system comprises the light source system according to any one of claims 1 to 9.