WO2019109449A1

WO2019109449A1 - Light source system and projction system

Info

Publication number: WO2019109449A1
Application number: PCT/CN2018/071450
Authority: WO
Inventors: 郭祖强; 杜鹏; 李屹
Original assignee: 深圳光峰科技股份有限公司
Priority date: 2017-12-04
Filing date: 2018-01-04
Publication date: 2019-06-13
Also published as: CN109870871A

Abstract

A light source system and a projection system. The light source system comprises an excitation light source for generating first excitation light, a light combination device, a lens, a color wheel and a guide assembly, wherein the color wheel is used for receiving the first excitation light, and emitting second excitation light and excited light in a time sequence; the lens converges the first excitation light and emits same to the color wheel; the light combination device can receive the first excitation light and can emit the first excitation light to the lens, and the light combination device emits the second excitation light to the guide assembly; and the guide assembly is used for receiving the second excitation light transmitted by the light combination device, changing an optical path of the second excitation light, and converging the optical path of the second excitation light with an optical path of the excited light and then emitting same from the light combination device, wherein optical paths, within the lens, of the first excitation light and the second excitation light received by the lens are in a separated state. The light source system has the advantages of high optical efficiency, color uniformity, etc.

Description

Light source system and projection system

Technical field

The present invention relates to the field of optical technologies, and in particular, to a light source system and a projection system.

Background technique

At present, spatial light modulators are widely used in the field of projection display. Space light modulators generally include LCD, LCOS, DMD, etc. The monolithic spatial light modulator projection system realizes color projection display based on the base light of timing switching. Simple structure, low cost, etc., widely used in the low-end market.

technical problem

In the current projection display field, a blue semiconductor laser is generally used as the excitation light. In the process of industrialization, the phosphor is mainly applied to the light source product in the form of a color wheel. The color wheel is divided into transmissive and reflective. In terms of conversion efficiency and heat dissipation performance, the reflective color wheel has advantages over the transmissive color wheel. However, in terms of optical design, the reflective color wheel structure has the following problem: since the blue light usually comes directly from the eigen spectrum of the laser, and the reflected light and the reflected light passing through the color wheel are opposite in the optical path, the two The separation has become the first problem to be solved. At present, the optical spread is usually used for splitting, that is, the spread of the excitation light is small, and only a small anti-reflection region needs to be transmitted through the spectroscopic lens. After the excitation light passes through the color wheel, the amount of diffuse reflection light is large, and a large-area reflection area is required at the spectroscopic lens. Therefore, the spectroscopic lens needs to be formed into a region coating film. It is unavoidable that the reflected excitation light will have a loss in the anti-reflection region, and the loss of the angular distribution of the excitation light will cause color unevenness.

Technical solution

In view of the above, it is necessary to provide a light source system with a small volume and high optical efficiency, and it is also necessary to provide a display device using the above light source system.

A light source system includes an excitation light source for generating a first excitation light, a light combining device, a lens, a color wheel, and a guiding assembly, the color wheel for receiving the first excitation light and sequentially emitting the second excitation light And receiving laser light;

The lens converges the first excitation light and exits to the color wheel, and also collimates the second excitation light and the laser received by the color wheel;

The light combining device is capable of receiving the first excitation light and capable of emitting the first excitation light to the lens, and the light combining device emits the second excitation light to the guiding assembly;

The guiding assembly is configured to receive the second excitation light transmitted by the light combining device and change the optical path of the second excitation light, and make the optical path of the second excitation light and the optical path of the laser received light After the merging, the light is emitted from the light combining device, and the optical paths of the first excitation light and the second excitation light received by the lens in the lens are in a separated state.

Beneficial effect

A projection system employing a light source system as described above.

The light source system provided by the present invention is capable of separating the first excitation light from the optical path of the second excitation light, and the guiding component of the light source system is capable of guiding the second excitation light to the light combining device such that the The light source system has the characteristics of high optical efficiency and uniform color, and the structure of the light source system is more compact and the volume is reduced.

DRAWINGS

1 is a schematic structural view of a light source system according to a first embodiment of the present invention.

2 is a schematic structural view of a color wheel plate of the light source system of FIG. 1.

Fig. 3 is a schematic structural view of a light source system according to a second embodiment of the present invention.

4 is a schematic structural view of a color wheel of the light source system of FIG.

Fig. 5 is a schematic structural view of a light source system according to a third embodiment of the present invention.

Figure 6 is a schematic view showing the structure of the color wheel plate of the light source system of Figure 3.

Fig. 7 is a schematic structural view of a light source system according to a fourth embodiment of the present invention.

Fig. 8 is a schematic structural view of a light source system according to a fifth embodiment of the present invention.

Embodiments of the invention

Please refer to FIG. 1, which is a schematic structural view of a light source system according to a first embodiment of the present invention. The light source system 100a includes an excitation light source 10a, a light combining device 20a, a lens 30a, a color wheel 40a, a guiding assembly 50a, a reflecting device 60a, a light collecting device 70a, and a light homogenizing device 80a.

The excitation light source 10a is used to emit a first excitation light, which may be a semiconductor diode or a semiconductor diode array such as a laser diode (LD) or a light emitting diode (LED). The first excitation light may be blue light, purple light or ultraviolet light, etc., but is not limited to the above. In the embodiment, the first excitation light is blue excitation light.

The light combining device 20a is disposed on an optical path where the first excitation light emitted by the excitation light source 10a is located. The light combining device 20a is configured to receive the first excitation light emitted by the excitation light source 10a and emit the first excitation light received by the excitation light source 10a. In the present embodiment, the light combining device 20a is an anti-blue translucent lens, that is, the light combining device 20a is capable of transmitting blue light and is capable of reflecting the yellow light.

The lens 30a is disposed on an optical path of the first excitation light emitted by the light combining device 20a, and the lens 30a is configured to receive the first excitation light transmitted by the light combining device 20a, and to the first excitation The light is concentrated and then emerged. Specifically, the axis of the lens 30a does not coincide with the optical path where the first excitation light is located. In other words, the first excitation light is not irradiated onto the axis of the lens 30a, but is irradiated to one side of the axis of the lens 30a. In the present embodiment, the first excitation light is parallel to the axis of the lens 30a. The color wheel 40a is disposed on an optical path where the first excitation light emitted by the lens 30a is located. The color wheel 40a includes a color wheel plate 41a and a driving device 42a. The driving device 42a is capable of driving the color wheel plate 41a to rotate.

Referring to FIG. 2, the color wheel plate 41a is configured to receive the first excitation light emitted by the lens 30a. The color wheel plate 41 includes a filter region 411a provided at a portion of the edge of the color wheel plate 41a, and a conversion region 412a provided on the color wheel plate 41a and disposed adjacent to the filter region 411a. The filter region 411a and the conversion region 412a each have a ring structure, and the filter region 411a is disposed outside the conversion region 412a.

The filter region 411a is for filtering the received light. The filter region 411a includes a first filter region 413a and a second filter region 414a. The number of the first filter regions 413a may be multiple, and the color of the plurality of first filter regions 413a may be set according to actual needs, which is not limited by the present invention.

The number of the second filter regions 414a is at least one, and the second filter region 414a is disposed between the first filter regions 413a. In the present embodiment, the number of the second filter regions 414a is one. In other embodiments, the number of the second filter regions 414a may be limited according to actual needs, which is not limited by the present invention.

The conversion region 412a has an annular structure as a whole, and is disposed inside the filter region 411a and disposed adjacent to the filter region 411a. The conversion region 412a is disposed on an optical path where the first excitation light emitted by the lens 30a is located. The conversion region 412a includes a first conversion region 415a and a second conversion region 416a. The second conversion region 416a is disposed between the first conversion regions 415a.

The number of the first conversion regions 415a is plural, and the plurality of first conversion regions 415a can be provided with a plurality of different kinds of phosphors. The phosphors of the different first conversion regions 415a are each capable of receiving the first excitation light and being excited by the first excitation light to generate a laser light. The first excitation light received by the first conversion region 415a and the plane of the second conversion region 416a are at a predetermined inclination angle, that is, the two are not vertically disposed. The first excitation light is capable of exciting phosphors of different first conversion regions 415a to produce different colors of laser light. The laser light of the different colors is reflected in the form of light, and reaches the lens 30a and finally reaches the corresponding first filter region 413a. In this embodiment, the number of the first conversion regions 415a is two. It can be understood that the number of the second filter regions 414a is also two. Of course, in other embodiments, the first conversion area 415a may also be set according to actual needs, which is not limited by the present invention. The plurality of first conversion regions 415a are disposed in one-to-one correspondence with the plurality of first filter regions 413a. The laser light generated by the plurality of first conversion regions 415a reaches the respective first filter regions 413a for filtering.

The number of the second conversion regions 416a is at least one, and is disposed between the first conversion regions 415a. In this embodiment, the number of the second conversion regions 416a is one. The second conversion region 416a is configured to reflect the first excitation light reaching the second excitation light. The first excitation light received by the second conversion region 416a is also at an angle to the plane in which the second filter region 414a is located, that is, the two are not vertically disposed. In this embodiment, the second conversion region 416a is a reflective diffuser, and the second transition region 416a is configured to perform a decoherent operation on the received first excitation light, and then receive the first received The excitation light is reflected to form a second excitation light. According to the principle of specular reflection, the incident angle of the first excitation light received by the second conversion region 416a is the same as the reflection angle of the second excitation light reflected by the second conversion region 416a.

It can be understood that the first conversion region 415a and the second conversion region 416a of the conversion region 412a are capable of alternately receiving the first excitation light transmitted by the lens 30a under the driving of the driving device 41a. The second conversion region 416a is disposed corresponding to the second filter region 414a. The second excitation light reflected by the second conversion region 416a finally reaches the second filter region 414a.

The lens 30a receives the laser light generated by the excitation of the first conversion region 415a and the second excitation light reflected by the second conversion region 416a. The lens 30a is for collecting a laser light reflected in the form of light, and condensing and collimating the laser light to be emitted to the light combining device 20a. For the second excitation light received by the lens 30a, the lens 30a can receive the second excitation light reflected by the second conversion region 416a, and collimate the second excitation light to be emitted to The light combining device 20a. It can be understood that, according to the principle of specular reflection, the second excitation light reflected by the second conversion region 416a and the first excitation light received by the second conversion region 416a are respectively located in the lens 30a. Relative sides. In other words, the optical path of the second excitation light reflected by the laser light emitted from the light combining device 20a and reflected by the color wheel 40a in the lens 40a is separated. In the present embodiment, the laser beam emitted from the light combining device 20a and the second excitation light reflected by the color wheel 40a received by the lens 30a are parallel to the optical path in the lens 40a.

The light combining device 20a is simultaneously configured to receive the laser light and the second excitation light from the lens 30a, and to reflect the laser light to the reflection device 60a while emitting the second excitation light to the Guide assembly 50a. In other words, the light combining device 20a is capable of transmitting the second excitation light reflected by the guiding assembly 50a and merging with the laser light reflected by the light combining device 20a.

The guiding component 50a is disposed on the optical path where the second excitation light emitted by the light combining device 20a is located, and is capable of reflecting the second excitation light received thereby, thereby changing the optical path of the second excitation light. The guiding assembly 50a includes a plurality of mirrors that in turn reflect excitation light emitted by the light combining device to the light combining device and are transmitted by the light combining device. In the present embodiment, the guide assembly 50a includes a first mirror 51a, a second mirror 52a, and a third mirror 53a. It can be understood that the guiding component 50a can also be other number of mirrors, which is not limited in the present invention.

The first mirror 51a is disposed on the optical path of the second excitation light transmitted by the light combining device 20a, and is configured to receive the second excitation light that is emitted after passing through the light combining device 20a, and the first mirror The two excitation lights are reflected to the second mirror 52a.

The second mirror 52a is disposed on the optical path of the second excitation light reflected by the first mirror 52a for receiving the second excitation light reflected by the first mirror 51a and the second The excitation light is reflected to the third mirror 53a.

The third mirror 53a is disposed on the optical path of the second excitation light reflected by the second mirror 52a for receiving the second excitation light reflected by the second mirror 52a and the second The excitation light is again reflected to the light combining device 20a. The light combining device 20a is capable of transmitting the second excitation light reaching thereto, and the second excitation light emitted by the light combining device 20a reaches the reflection device 60a. It is to be understood that the guide assembly 50a may also include other numbers of mirrors to achieve the function of the guide assembly 50a of the present embodiment, which is not limited by the present invention.

The reflecting device 60a is disposed on the optical path of the laser light and the transmitted second excitation light reflected by the light combining device 20a. The reflecting device 60a is capable of receiving the received laser light reflected by the light combining device 20a, and is capable of reflecting the received laser light to the light collecting device 70a. Similarly, the reflecting device 60a is capable of receiving the second excitation light emitted by the light combining device 20a, and is capable of reflecting the second excitation light to the light collecting device 70a.

The concentrating device 70a is disposed on the second excitation light reflected by the reflection device 60a and on the optical path where the laser is located. The concentrating device 70a can condense the laser light and the second excitation light and then emit the light to the filter region 411a of the color wheel plate 42a.

The filter region 411a is for receiving a laser beam that is emitted after the concentrating device 70a is concentrated. Specifically, the first filter region 413a is configured to receive the laser light generated by the first conversion region 415a and filter the received laser light. The second filter region 414a is configured to receive the second excitation light reflected by the second conversion region 416a and perform divergence processing on the second excitation light.

The filter region 411a is configured to perform a filtering operation on the second excitation light and the laser light to obtain a laser light of a desired color. The filter region 411a emits light after the excitation light and the laser light are subjected to a filtering operation.

The light homogenizing device 80a is disposed on the excitation light filtered by the filter region 411a and on the optical path where the laser light is received. The light homogenizing device 80a is capable of filtering the received excitation light and the laser light, and then exits. In the present embodiment, the light homogenizing device 80a is a light homogenizing rod.

Embodiment 2

Please refer to FIG. 3 and FIG. 4, wherein FIG. 3 is a schematic structural view of a light source system according to a second embodiment of the present invention; and FIG. 4 is a schematic structural view of a color wheel of the light source system of FIG.

The light source system 100b includes an excitation light source 10b, a light combining device 20b, a lens 30b, a color wheel 40b, a guiding assembly 50b, a reflecting device 60b, a light collecting device 70b, and a light homogenizing device 80b.

The light source system 100b in this embodiment is substantially the same as the light source system 100a in the first embodiment, except that the optical path of the first excitation light emitted by the excitation light source 10b is coaxial with the lens 30b. Further, the structure of the color wheel 40b is different from that of the color wheel 40a in the first embodiment.

The color wheel 40b includes a color wheel plate 41b and a driving device 42b. The driving device 42b drives the color wheel plate 41b to rotate. The driving device 42b is the same as the driving device 42b in the first embodiment, and details are not described herein.

The structure of the color wheel plate 41b is substantially the same as that of the color wheel plate 41a in the first embodiment, and the color wheel plate 41b also includes a switching area (not shown) and a filter area (not shown).

The difference is that the conversion area of the color wheel plate 41b includes the second conversion area 416b. The second conversion region 416b is obliquely disposed at a predetermined angle with respect to the first conversion region, and in the present embodiment, the second conversion region 416b is configured to reflect the first excitation light reaching thereon, and The first excitation light is diverged while being reflected to form a second excitation light.

The lens 30b is disposed on the optical path where the second excitation region 416b reflects the second excitation light formed by the first excitation light, and the optical path of the first excitation light coincides with the axis of the lens, the lens The optical path of the second excitation light emitted by the second conversion region received by 30b is located on one side of the axis of the lens 30b, since the second conversion region 416b is inclined at a predetermined angle with respect to the first conversion region The light path of the first excitation light reflected by the second conversion region 416b and the first excitation light received by the second conversion region 416b in the lens 30b is disposed on opposite sides of the lens 30b.

The optical path of the other portions of the light source system 100b is the same as that of the light source system 100a of the first embodiment. In addition, the excitation light source 10b, the light combining device 20b, the lens 30b, the guiding assembly 50b, the reflecting device 60b, the concentrating device 70b, and the light homogenizing device 80b of the light source system 100b are respectively coupled with the excitation light source 10a in the light source system 100a, The structures of the light combining device 20a, the lens 30a, the guiding assembly 50a, the reflecting device 60a, the concentrating device 70a, and the light concentrating device 80a are identical in one-to-one correspondence, and are not described herein again.

Embodiment 3

Please refer to FIG. 5, which is a schematic structural view of a light source system according to a third embodiment of the present invention. The light source system 100c includes an excitation light source 10c, a light combining device 20c, a lens 30c, a color wheel 40c, a guiding assembly 50c, a light collecting device 70c, and a light homogenizing device 80c.

The light source system 100c in this embodiment is substantially the same as the light source system 100a in the first embodiment, except that the structure of the color wheel 40c of the light source system 100c and the structure of the guiding assembly 50c are the same as those in the first embodiment. The structure of the color wheel 40a and the structure of the guide assembly 50c are different. Further, the light source system 100c does not include a reflecting device.

The color wheel 40c includes a color wheel plate 41c and a driving device 42c. The driving device 42c drives the color wheel plate 41c to rotate. The driving device 42c is the same as the driving device 42a in the first embodiment, and details are not described herein.

Referring to FIG. 6, the color wheel plate 41c is different from the structure of the color wheel plate 41a in the first embodiment. The structure of the color wheel plate 41c is different from that of the color wheel plate 41a in that the color wheel plate 41c does not include a filter area and includes only the conversion area 412c. The conversion region 412c also includes a first conversion region 415c and a second conversion region 416c.

The position of the transition zone 412c may be the same as the shape and position of the transition zone 412a of the color wheel plate 41a in the first embodiment. Of course, the position of the transition zone can also be adjusted according to actual needs, which is not limited by the present invention.

The guiding assembly 50c includes a first mirror 51c, a diffusing mirror 52c, a second mirror 53c, a third mirror 54c, and a condensing mirror 55c. Similar to the light source system 100a in the first embodiment, the first mirror 51c receives the second excitation light emitted by the light combining device 20c and reflects the second excitation light received thereto to the astigmatism mirror 52c. The astigmatism mirror 52c diverges the received second excitation light and then exits to the second mirror 53c. The second mirror 53c reflects the second excitation light reaching thereon to the third mirror 54c. The third mirror 54c reflects the second excitation light reaching thereon to the condensing mirror 55c and is transmitted by the condensing mirror 55c to the light combining device 20c.

Similar to the light source system 100a of the first embodiment, the guiding assembly 50c is for receiving the second excitation light emitted by the light combining device 20c and reflecting the second excitation light to the light combining device 20c again. The difference is that the guiding component 50c in the present embodiment also diverges the second excitation light while guiding the second excitation light. Preferably, the optical path of the second excitation light reflected by the guiding component 50c received by the light combining device 20c and the laser light generated by the light combining device 20c and excited by the color wheel 40c by the first excitation light The optical paths are coincident; that is, the amount of optical expansion of the excitation light matches the amount of optical expansion of the laser. Of course, in other embodiments, the optical paths of the two may be adjusted accordingly according to actual needs, which is not limited by the present invention.

The concentrating device 70c is disposed on the optical path of the second excitation light emitted by the light combining device 20c and the laser light reflected by the light combining device 20c for receiving and condensing and being emitted by the light combining device 20c. The first excitation light and the laser light reflected by the light combining device 20c are emitted to the light homogenizing device 80c. The light homogenizing device 80c performs uniformization processing on the received second excitation light and the received laser light, and then exits.

The structure of the other parts of the light source system 100c and the optical path are the same as those of the corresponding parts of the light source system 100a in the first embodiment, and will not be described herein.

Embodiment 4

Please refer to FIG. 7, which is a schematic structural diagram of a light source system according to a fourth embodiment of the present invention. The light source system 100d includes an excitation light source 10d, a light combining device 20d, a lens 30d, a color wheel 40d, a guiding assembly 50d, a light collecting device 70d, and a light homogenizing device 80d.

The light source system 100d in the present embodiment is substantially the same as the light source system 100c in the third embodiment, except that the structure of the guide assembly 50d is different from that of the guide assembly 50c in the third embodiment.

The guide assembly 50d includes a first mirror 51d, a convex mirror 52d, and a concave mirror 53d. The first mirror 51d receives the second excitation light emitted by the light combining device 20d, and reflects the received second excitation light to the convex mirror 52d. The convex mirror 52d reflects the received second excitation light to the concave mirror 53d while diverging the second excitation light. The concave mirror 53d is for reflecting the received second excitation light to the light combining device 20d.

Similar to the light source system 100c in the third embodiment, the optical path after the second excitation light reflected by the guiding component 50c reaches the light combining device 20 coincides with the laser light path reflected by the light combining device 20d; The etendue of the second excitation light matches the amount of optical expansion of the laser. Of course, the position of the transition zone can also be adjusted according to actual needs, which is not limited by the present invention.

The structure of the other parts of the light source system 100d and the optical path are the same as those of the corresponding portions of the light source system 100c in the first embodiment, and will not be described herein.

Compared with the third embodiment, the light source system 100d of the present embodiment diverges the second excitation light by the convex mirror 52d, thereby reducing the use of the optical element and further reducing the cost of the light source system 100d.

Embodiment 5

Please refer to FIG. 8, which is a schematic structural view of a light source system according to a fifth embodiment of the present invention. The light source system 100e includes an excitation light source 10e, a light combining device 20e, a lens 30e, a color wheel 40e, a guiding assembly 50e, a light collecting device 70e, and a light homogenizing device 80e.

The light source system 100e in the present embodiment is substantially the same as the light source system 100d in the fourth embodiment, except that the structure of the guide assembly 50e is different from that of the guide assembly 50d in the fourth embodiment.

The guide assembly 50e includes a first mirror 51e, a second mirror 52e, and a concave mirror 53e. The first mirror 51e receives the excitation light emitted by the light combining device 20e, and reflects the received excitation light to the second mirror 52e. In the present embodiment, the second mirror 52e is a reflective diffuser. The second mirror 52e reflects the received excitation light to the concave mirror 53e while diverging the excitation light. The concave mirror 53e is for reflecting the received excitation light to the light combining device 20e. It is to be understood that in the present embodiment, the first mirror 51e may be a reflective diffuser, and the second mirror 52e may be a common mirror, which is not limited in the present invention.

Similar to the guiding assembly 50d in the light source system 100d in the fourth embodiment, the guiding assembly 50e diverges the second excitation light while reflecting the second excitation light, and the second excitation light reaches the combined light The optical path after the device 20e coincides with the optical path of the light combining device 20e reflected by the laser light; that is, the optical spread of the excitation light matches the optical spread of the laser light. Of course, the position of the transition zone can also be adjusted according to actual needs, which is not limited by the present invention.

The structure of the other parts of the light source system 100e and the optical path are the same as those of the corresponding portions of the light source system 100d in the fourth embodiment, and will not be described herein.

Further, the present invention also provides a projection system employing the above-described light source system.

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting, and the present invention will be described in detail with reference to the preferred embodiments of the present invention. Neither should the spirit and scope of the technical solutions of the present invention be deviated.

Claims

A light source system comprising: an excitation light source for generating a first excitation light, a light combining device, a lens, a color wheel, and a guiding assembly, the color wheel for receiving the first excitation light and timing Grounding second excitation light and receiving laser light;

The light source system of claim 1 wherein said color wheel comprises a transition zone, said transition zone comprising a first transition zone and a second transition zone, said first transition zone being incident on said first The excitation light is converted to generate the laser light, and the second conversion region reflects the received first excitation light while diverging the first excitation light to form a second excitation light.

The light source system according to claim 2, wherein said second conversion region is disposed at a predetermined angle with respect to said first conversion region.

The light source system according to claim 3, wherein an optical path of said first excitation light coincides with an axis of said lens, and said second excitation light emitted by said second conversion region is received by said lens The optical path is located on one side of the lens axis.

A light source system according to claim 2, wherein said color wheel further comprises a filter region, said filter region comprising a first filter region and a second filter region, said first filter region and The first conversion region is correspondingly disposed, the first filter region is configured to filter the laser light, and the second filter region is disposed corresponding to the second conversion region, the second filter region The second excitation light is transmitted and simultaneously diverged, and the filter region is disposed outside the conversion region.

A light source system according to claim 5, wherein said guiding assembly comprises a plurality of mirrors, which in turn reflect the second excitation light emitted by said light combining means to said combining light again The device is transmitted by the light combining device.

A light source system according to claim 5, wherein said light source system further comprises a reflecting means, a collecting means, and a light homogenizing means, said reflecting means receiving the laser light reflected by said light combining means and said a second excitation light transmitted by the light combining device, and reflecting the received laser light and the second excitation light to the concentrating device, the concentrating device condensing the received laser light and the second excitation light Exiting to the filter region, the filter region filters the received laser light and the second excitation light and transmits to the light homogenizing device.

A light source system according to claim 2, further comprising a light collecting means and a light homogenizing means, said light collecting means receiving the laser light reflected by said light combining means and transmitting by said light combining means The second excitation light converges the received laser light and the second excitation light to be emitted to the light homogenizing device.

The light source system according to claim 8, wherein the guiding component comprises a first mirror, a astigmatism mirror, a second mirror, a third mirror and a condensing mirror, and the excitation light emitted by the light combining device is sequentially Reaching the light combining device after passing through the first mirror, the astigmatism mirror, the second mirror, the third mirror and the condensing mirror, the astigmatism mirror is used for the second The excitation light performs an astigmatism operation, and the guiding component can increase the optical expansion amount of the second excitation light while receiving the second excitation light.

The light source system of claim 8 wherein said guiding assembly comprises a first mirror, a second mirror and a concave mirror, said first mirror, said second mirror and said concave surface The mirror sequentially reflects the second excitation light emitted by the light combining device to the light combining device and is transmitted by the light combining device, and the guiding component can increase the number while receiving the second excitation light The optical expansion of the two excitation lights.

The light source system of claim 8 wherein said guiding assembly comprises a first mirror, a convex mirror and a concave mirror, said first mirror, said convex mirror and said concave mirror And secondly reflecting the second excitation light emitted by the light combining device to the light combining device and transmitting by the light combining device, the concave mirror capable of diverging the received second excitation light, the guiding The component is capable of increasing the etendue of the second excitation light while reflecting the second excitation light.

A light source system according to claim 1, wherein said light combining means is capable of transmitting a second excitation light reflected by said guiding means, and said second excitation light transmitted by said light combining means The light path of the laser light reflected by the light combining device coincides.

A projection system, characterized in that the projection system comprises a light source system according to any of claims 1-12.