WO2018076716A1

WO2018076716A1 - Light-source system and display device

Info

Publication number: WO2018076716A1
Application number: PCT/CN2017/088625
Authority: WO
Inventors: 郭祖强; 胡飞; 李屹
Original assignee: 深圳市光峰光电技术有限公司
Priority date: 2016-10-28
Filing date: 2017-06-16
Publication date: 2018-05-03
Also published as: CN108008593A; CN108008593B

Abstract

A light source system (200), comprising an excitation light source (201), a scattering device (207), a wavelength conversion device (209), a light splitting/converging device (205) and a relay lens (210). The light splitting/converging device (205) is used to guide a first part of excitation light sent from the excitation light source (201) to the scattering device (207) and to guide a second part of excitation light sent from the excitation light source (201) to the wavelength conversion device (209); the scattering device (207) is used to scatter the first part of the excitation light and then supply to the light splitting/converging device (205); the light splitting/converging device (205) is also used to guide the scattered first part of the excitation light to a light exiting channel; the wavelength conversion device (209) is used to convert the second part of the excitation light to an excited light which is then supplied to the light splitting/converging device (205); the light splitting/converging device (205) is also used to guide the excited light to the light exiting channel; the relay lens (210) is provided inside the light exiting channel, and is used to focus the scattered first part of the excitation light and the excited light sent by the light splitting/converging device (205). Also provided is a display device.

Description

Light source system and display device

Technical field

The invention relates to a light source system and a display device.

Background technique

At present, laser light sources are becoming more and more widely used in display (such as projection field) and illumination. Due to the high energy density and small optical expansion, laser light sources have gradually replaced bulbs and LEDs in the field of high-brightness light sources. light source. Among them, the light source system that uses the excitation light source to excite the phosphor to generate the required light (such as the blue laser to excite the yellow phosphor to produce white light) has become the mainstream of the application because of its high luminous efficiency, good stability and low cost.

technical problem

However, the above optical system may cause the beam to be relatively divergent due to the fact that the outgoing beam has a certain emission angle and the transmission optical path is long, resulting in a lower utilization rate of the beam by the subsequent optical path system, that is, the light effect is low.

Technical solution

In order to solve the technical problem that the light beam emitted by the prior art light source system is relatively diverging and the subsequent light effect is low, it is necessary to provide a light source system with high light efficiency.

It is also necessary to provide a display device using the above light source system.

A light source system, the light source system comprising an excitation light source, a scattering device, a wavelength conversion device, a light combining and a relay lens, the excitation light source for emitting excitation light, and the light combining and combining device for A first portion of the excitation light emitted by the excitation source is directed to the scattering device, and the beam splitting device is further configured to direct a second portion of the excitation light emitted by the excitation source to the wavelength conversion device,

The scattering device is configured to scatter the first partial excitation light and provide the scattered first partial excitation light to the beam splitting device, wherein the beam splitting device is further configured to excite the first portion after scattering Light is guided to the light exit channel,

The wavelength conversion device is configured to convert the second partial excitation light into a laser received light, and provide the received laser light to the light splitting and combining device, wherein the light combining and combining device is further configured to guide the laser light receiving device To the light exit channel,

The relay lens is disposed in the light exiting channel, and the scattered first partial excitation light and the received laser light emitted by the light splitting and combining device are both focused by the relay lens and emitted.

In one embodiment, the scattered first partial excitation light emitted by the scattering device or the laser light emitted by the wavelength conversion device is defined as a first position before entering the optical splitting device. a preset position, a focused first partial excitation light emitted by the relay lens and a predetermined position on the laser-emitting light path defined as a second preset position, and the light imaging at the first preset position The spot area is consistent with the size of the spot area of the light image at the second predetermined position.

In an embodiment, the light source system further includes at least one first collecting lens, and the at least one first collecting lens is disposed between the scattering device and the beam splitting device, the at least one first A collecting lens is used to focus light in the optical path between the scattering device and the spectroscopic unit.

The first preset position is a position closest to the at least one first collecting lens, and the second preset position is a position closest to the relay lens.

In one embodiment, the number of the at least one first collecting lens is two, and the two first collecting lenses are respectively disposed between the scattering device and the first preset position, the scattering The scattered first portion of the excitation light emitted by the device is first focused by the first first collecting lens and then guided to the second first collecting lens, the second first collecting lens further scatters the light The latter first portion of the excitation light is collimated and directed to the spectroscopic unit via the first predetermined position.

In an embodiment, the light source system further includes a light shaping device, the inlet of the light shaping device is corresponding to the second preset position and is used to send the focused image to the relay lens Part of the excitation light and the laser being shaped, the outlet of the light shaping device further defining a third predetermined position, the shape of the light imaged at the third predetermined position and the light entrance element of the subsequent optical path system The shape is the same.

In an embodiment, the light source system further includes a light homogenizing device, wherein the light homogenizing device is disposed on the focused first partial excitation light and the laser light emitting light path emitted by the relay lens after focusing Receiving the focused first partial excitation light and the received laser light, the shape of each lens unit in the first fly-eye lens located on the optical path in the light homogenizing device, and the focus after the relay lens is focused and emitted The first portion of the excitation light and the spot shape formed by the laser light on the first fly-eye lens are identical for dimming and shaping the focused first partial excitation light and the laser light.

In an embodiment, the spot shape of the light imaged at the third preset position is a rectangle; and the spot shape of the light imaged at the second preset position is a circle or an ellipse.

In an embodiment, the light source system further includes at least one second collecting lens disposed in an optical path between the wavelength conversion device and the beam splitting device, At least one second collection lens is used to focus light in the optical path between the wavelength conversion device and the spectroscopic unit.

In one embodiment, the number of the at least one second collecting lens is two, and the first one of the two second collecting lenses is used for receiving the laser light to the wavelength conversion device Focusing, a second one of the two second collection lenses is configured to collimate the laser light emitted by the first second collection lens to the spectroscopic unit.

In one embodiment, the spectroscopic light combining device receives excitation light emitted by the excitation light source and reflects the first partial excitation light to the scattering device, and transmits the second partial excitation light to the a wavelength conversion device that scatters and reflects the first partial excitation light to the spectroscopic light combining device, the wavelength conversion device converting the second partial excitation light into a laser light and reflecting to the minute Photosynthetic light device.

In one embodiment, the spectroscopic light combining device receives excitation light emitted by the excitation light source and transmits the first partial excitation light to the scattering device, and reflects the second partial excitation light to the a wavelength conversion device that scatters and reflects the first partial excitation light to the spectroscopic light combining device, the wavelength conversion device converting the second partial excitation light into a laser light and reflecting to the minute Photosynthetic light device.

In one embodiment, the excitation light is blue excitation light, the wavelength conversion device comprises a yellow fluorescent material, and the laser received is a yellow received laser.

In one embodiment, the light source system further includes at least one reflecting device, the splitting and combining device includes a first beam splitting device and a second beam combining device, the first beam combining device receiving the Exciting light emitted from the excitation source and directing the first portion of the excitation light to the at least one reflective device, the at least one reflective device directing the first portion of the excitation light to the scattering device, the first splitting light The device also directs the second portion of the excitation light to the wavelength conversion device, the scattering device scatters and directs the first portion of the excitation light to the second beam splitting device, the wavelength conversion device The second portion of the excitation light is converted into a laser beam and guided to the second beam splitting device, and the second beam combining device directs the first portion of the excitation light and the laser light to the light exit channel and Said relay lens.

A display device includes a light source system including an excitation light source, a scattering device, a wavelength conversion device, a beam splitting device, and a relay lens, the excitation light source for emitting excitation light, and the beam splitting device And a first portion of the excitation light emitted by the excitation light source is directed to the scattering device, the light combining and combining device is further configured to guide a second portion of the excitation light emitted by the excitation light source to the wavelength conversion device,

Beneficial effect

Compared with the prior art, the light source system is provided with the relay lens in an exit channel after the spectroscopic unit, the scattered first partial excitation light emitted by the beam splitting device, and the The laser light is both focused by the relay lens and then emitted, so that the light beams emitted by the light source system are collected, which improves the utilization of the light beam system by the subsequent optical path system and the light efficiency is low.

In particular, in an embodiment, when the spot area of the light imaging at the first preset position coincides with the size of the spot area of the light imaging at the second preset position, the light beam is equivalent to The first preset position enters the subsequent optical path system, which can improve the problem of large spot area caused by the divergence of the optical path length during the transmission process, thereby improving the utilization of the light beam by the subsequent optical path system, that is, improving the light efficiency.

In one embodiment, the light source system further includes at least one first collection lens and at least one second collection lens, the at least one first collection lens being disposed between the scattering device and the beam splitting device The at least one first collecting lens focuses the scattered first partial excitation light emitted by the scattering device and then leads to the optical combining device, and the at least one second collecting lens is disposed at the wavelength conversion Between the apparatus and the spectroscopic unit, the at least one second collecting lens focuses the laser light emitted by the wavelength conversion device and then leads to the spectroscopic unit. It is possible to make it easier for the subsequent relay lens to focus the beam emitted by the beam splitting device, the spot light formed by the optical system is better, and the utilization of the beam by the subsequent optical path system is higher.

Further, in an embodiment, the light source system further includes a light shaping device, the inlet of the light shaping device is corresponding to the second preset position and is used to issue the relay lens After focusing, the first portion of the excitation light and the laser is shaped, and the exit of the light shaping device further defines a third preset position, and the shape of the light image spot at the third predetermined position is subsequent to the optical path system The shape of the light entrance elements is uniform, which makes the subsequent light path system more efficient.

In an embodiment, the light source system further includes a light homogenizing device, wherein the light homogenizing device is disposed on the focused first partial excitation light and the laser light emitting light path emitted by the relay lens after focusing Receiving the focused first partial excitation light and the received laser light, the shape of each lens unit in the first fly-eye lens located on the optical path in the light homogenizing device, and the focus after the relay lens is focused and emitted The first part of the excitation light and the shape of the spot formed by the laser on the first fly-eye lens are identical, so that the first part of the excitation light and the uniformity and shaping effect of the laser light are substantially Consistently, not only the overall light efficiency is improved, but also the light intensity and uniformity of the homogenizing device are improved.

DRAWINGS

1 is a schematic view showing the optical path structure of an optical system.

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

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 light source system according to a third embodiment of the present invention.

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

Fig. 6 is a schematic structural view of a light source system according to a fifth embodiment of the present invention.

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

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

Main component symbol description

Light source system 100, 200, 300, 400, 500, 600, 700, 800

Excitation source 101, 201, 501, 801

Compression lens module 216, 516

Light homogenizing components 104, 204, 504

Scattering device 107, 207, 507, 807

First collection lens 106, 206, 206a, 206b, 306, 506, 606

Optical splitting device 105, 205, 505

Wavelength conversion device 109, 209, 509, 809

Second collection lens 208, 208a, 208b, 308, 508, 608

Relay lens 210, 310, 410, 810

Leveling device 110, 211, 311, 411, 811

Positive lens 102, 202

Negative lens 103, 203

Light exit channel 217, 517, 817

First preset position 212, 512

Second preset position 213, 413, 513, 713

Light shaping device 418,718

Third preset position 415, 715

First optical splitting device 802

Second optical splitting device 805

First reflecting device 803

Second reflecting device 804

The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.

BEST MODE FOR CARRYING OUT THE INVENTION

Generally, under the condition of high energy density excitation light, the wavelength conversion device of the optical system needs to be in the form of a rotating color wheel with phosphor to solve the problem of scattering. Alternatively, a reflective long conversion device is generally selected, which has It bears the advantage of high energy density and small dispersion of light spots. However, since the light beam emitted from the light source system generally has a certain divergence characteristic, the spot area gradually increases as the light path increases, resulting in an adverse effect on subsequent light effects. In particular, when the light source system is used in a projector, the projector optical machine generally adopts a light homogenizing device (including but not limited to a fly-eye lens, a fly-eye lens pair, a homogenizing rod) to perform uniform light shaping of the light source system. If the light divergence angle of the injection into the homogenizing device is too large, a large loss of light efficiency will result. Specifically, please refer to FIG. 1 , which is a schematic diagram of an optical path structure of a light source system 100 .

The light source system 100 includes an excitation light source 101, a positive lens 102, a negative lens 103, a light homogenizing component 104, a beam splitting device 105, a first collecting lens 106 and a second collecting lens 108, a scattering device 107, a wavelength conversion device 109, And a homogenizing device 110. The light homogenizing device 110 is a fly-eye lens pair.

The excitation light source 101 emits blue excitation light, is compressed by the positive lens 102 and the negative lens 103, is homogenized by the light homogenizing member 104, and the blue excitation light 121 is disposed at the spectroscopic light combining device 105. In two parts, a part of the reflection is concentrated by the first collecting lens 106 to the scattering device 107, and the blue excitation light is scattered and reflected by the scattering device 107 to form scattered light, and passes through the first collecting lens 106 again. The collimated light is emitted; another part of the blue excitation light is transmitted, and is concentrated by the second collecting lens 108 to the wavelength conversion device 109 to generate a yellow laser light, and again passes through the collecting lens module 108 to become collimated light. Upon exiting, the scattered blue excitation light and the yellow light are combined by the laser light at the spectroscopic combining device 105 to form a bundle of white combined light, and finally enter the homogenizing device 110. In the process of the light beam propagation, since the beam has a certain divergence angle, the cross-sectional area of the beam gradually becomes larger, and the beam is emitted from the first collecting lens 106 to the leveling device 110 to have a certain distance. The cross-sectional area of the light beam of the optical device 110 is large (it can be said that the spot area of the light beam imaged by the light homogenizing device 110 is large), resulting in low utilization of the light beam by the light homogenizing device 110, that is, the light effect is low.

In view of the technical problem that the light source system 100 has low light efficiency, the present invention provides an optical system having high light efficiency. The light source system is disposed in the light exit channel of the light splitting and combining device, and the scattered first partial excitation light and the received laser light emitted by the light combining and combining device are respectively After the lens is focused, the light beam is emitted, so that the light beams emitted by the light source system are collected, which improves the utilization of the light beam by the subsequent optical path system and the low light efficiency.

The above described objects, features and advantages of the present invention will become more apparent from the aspects of the appended claims.

In the following description, numerous specific details are set forth in order to provide a full understanding of the present invention, but the invention may be practiced in other ways than those described herein, and those skilled in the art can do without departing from the scope of the invention. The invention is not limited by the specific embodiments disclosed below.

The present invention will be described in detail in conjunction with the accompanying drawings. When the embodiments of the present invention are described in detail, for the convenience of description, the cross-sectional views showing the structure of the device will not be partially enlarged, and the schematic diagram is only an example, which should not be limited herein. The scope of protection of the present invention. In addition, the actual three-dimensional dimensions of length, width and depth should be included in the actual production.

The details are described below by way of examples.

Please refer to FIG. 2. FIG. 2 is a schematic structural diagram of a light source system according to a first embodiment of the present invention. The light source system 200 includes an excitation light source 201, a compression lens module 216, a light homogenizing component 204, a scattering device 207, a first collection lens 206, a beam splitting device 205, a wavelength conversion device 209, a second collection lens 208, and a relay. Lens 210 and light homogenizing device 211.

The excitation light source 201 is for emitting excitation light. The excitation light source 201 can be a semiconductor diode or a semiconductor diode array. The semiconductor diode array may be a laser diode (LD) or a light emitting diode (LED) or the like. The excitation light may be blue light, purple light or ultraviolet light, etc., but is not limited to the above. In this embodiment, the excitation light source 201 is a blue optical semiconductor diode for emitting blue excitation light.

The compression lens module 216 is configured to compress the excitation light emitted by the excitation light source 201, and includes a positive lens 202 and a negative lens 203. The positive lens 202 and the negative lens 203 are sequentially disposed on the optical path of the excitation light emitted by the excitation light source 201. The positive lens 202 is disposed adjacent to the excitation light source 201, and the positive lens 202 may be a convex lens for collecting the excitation light emitted by the excitation light source 201. The negative lens 203 is disposed on an optical path of excitation light collected via the positive lens 202, and the negative lens 203 may be a concave lens for converting excitation light collected through the positive lens 202 into excitation light that is emitted in parallel. . In this embodiment, after the excitation light emitted by the excitation light source 201 (such as the semiconductor diode array) passes through the compression lens module 216, the spot area becomes smaller, so that the compression lens module 216 realizes the excitation light source 201. The compression of the emitted excitation light.

The light homogenizing member 204 is disposed on the optical path of the excitation light emitted by the negative lens 203 for homogenizing the excitation light and transmitting the uniformized excitation light to the spectroscopic light combining device 205.

The light-sharing component 204 is disposed adjacent to the compression lens module 216 for scattering and stimulating the excitation light compressed by the compression lens module 216. Specifically, the light homogenizing component 204 is disposed on the optical path of the excitation light emitted by the compression lens module 216 and disposed adjacent to the negative lens 203.

It can be understood that in the modified embodiment, the light source system 200 may also omit the compression lens module 216 and/or the light homogenizing component 204 according to the type/structure of the excitation light source and the actual requirements of the light source system.

The light combining and combining device 205 is located on the optical path of the excitation light emitted by the excitation light source 201, and the light combining and combining device 205 is configured to receive the excitation light through the compression lens module 216 and the light homogenizing component 204. The first portion of the excitation light reflects the received first portion of the excitation light to the scattering device 207, and the beam splitting device 205 is further configured to pass through the compression lens module 216 and the light homogenizing component 204. A second portion of the excitation light in the excitation light is received and the received second portion of the excitation light is transmitted to the wavelength conversion device 209.

Further, it can be understood that, in the first embodiment, the optical splitting device 205 may be a plurality of glass sheets superimposed to achieve different transmittances and reflectances, thereby having the above-mentioned first partial excitation light and the second portion. The excitation light and the reflection and transmission characteristics of the laser light; in the second embodiment, the light combining and combining device 205 may adopt a region splitting mode, such as the first region guiding the first portion of the excitation light to the scattering device 207, and second The region guides the second portion of the excitation light to the wavelength conversion device 209, and the first region and the second region further have the effect of guiding the light emitted from the scattering device 207 and the wavelength conversion device 209. The first region and the second region may each have a guiding effect by using a region coating method, and at least one region of the first region and the second region may also adopt a manner of digging holes, for example, the first region is in the The opening area of the specific area (such as the central area) of the optical splitting device 205 is boring, so that the light beam is directly guided by transmission, and the second area can be The reflection region so that reflective manner to guide the light beam. That is to say, the manner in which the light combining and combining device 205 can be employed is various, and is not limited to the above-described manner, and the specific structure of the optical combining and combining device 205 will not be described herein.

The scattering device 207 is configured to scatter and reflect the first partial excitation light reflected by the spectroscopic unit 205, thereby providing the scattered first partial excitation light (also referred to as scattered light) to the split light Device 205; as will be appreciated by those skilled in the art, scattering device 207 can provide at least partially scattered first portion of the excitation light to the beam splitting device 205. The beam splitting device 205 is further configured to receive the scattered first portion of the excitation light emitted by the scattering device 207 and transmit the scattered first portion of the excitation light to the spectroscopic unit On the light exit channel 217 of 205.

The first collecting lens 206 is located on an optical path between the scattering device 207 and the beam splitting device 205 for focusing or collimating the first portion of the excitation light on the optical path.

It can be understood that the first collecting lens 206 can be a convex lens, and the number thereof can be two. Specifically, a predetermined position of the laser light emitted by the scattered first partial excitation light emitted by the scattering device 207 before entering the light combining and combining device 205 is defined as a first preset position 212, the two The first collecting lenses 206 are disposed between the scattering device 207 and the first preset position 212, and the scattered first partial excitation light emitted by the scattering device 207 is passed through the first first collecting lens 206a. After being focused for the first time, it is guided to the second first collecting lens 206b, and the second first collecting lens further collimates the scattered first partial excitation light and passes through the first preset position 212 is directed to the spectroscopic unit 205. In this embodiment, the first preset position 212 is the closest to the second collection of the laser light emitted by the scattered first partial excitation light emitted by the scattering device 207 before entering the spectroscopic unit 205. The position of the lens 206b, it is understood that the setting of the position is advantageous for detecting the spot here to adjust the optical path of the light source system 100.

The wavelength conversion device 209 is disposed on an optical path of the second partial excitation light transmitted by the spectroscopic unit 205, and includes a fluorescent material for converting the transmitted second partial excitation light into a laser light, and The laser is re-reflected to the spectroscopic unit 205; as will be understood by those skilled in the art, the wavelength conversion device 209 can provide at least a portion of the received laser light to the spectroscopic unit 205. The light splitting and combining device 205 is further configured to reflect the received laser light to the light exiting channel 217, and the received laser light and the scattered first partial excitation light are at the light splitting and combining device 205 and the light exiting channel 217 Forming a light in the middle. In the present embodiment, the wavelength conversion device 209 is a reflective fluorescent color wheel that includes a yellow fluorescent material, the received laser light is a yellow received laser light, and the blue excitation light is combined with the yellow received laser light to form white light. Of course, it is to be understood that, in the modified embodiment, the blue excitation light and the received laser light are not limited to the above, and may be other colors, and the combined light combining device 205 and the light exit channel 217 may also be combined. It is set to other colors such as orange and green according to actual needs, and is not limited to white.

The second collection lens 208 is disposed between the wavelength conversion device 209 and the beam splitting device 205, and the second collection lens 208 is configured to pair the beam splitting device 305 with the wavelength conversion device 209. The excitation light in the optical path is focused or collimated by the laser.

It can be understood that the second collecting lens 208 can be a convex lens, and the number thereof can be two. Specifically, the first one of the two second collecting lenses 208 is used to focus the laser light emitted by the wavelength conversion device 209, and the second of the two second collecting lenses 208 The two second collecting lenses 208b are configured to collimate the laser light emitted from the first second collecting lens 208a to the spectroscopic unit 205.

The relay lens 210 is disposed in the light exit channel 217, which may be an aspherical lens, and the scattered first partial excitation light and the received laser light emitted by the light combining and combining device 205 are all via the middle After the lens 210 is focused, it is emitted. After the scattered first portion of the excitation light and the laser light passing through the light combining unit 205, the optical axes do not coincide, the scattered light and the laser light pass through different positions of the relay lens 210, and the relay lens 210 refracts the light so that it is from different positions. The incident light, which is diverging toward the optical axis of the relay lens 210, approaches or parallels the optical axis, and the light that converges with the optical axis of the relay lens 210 diverges with respect to the optical axis. Finally, after the scattered first portion of the excitation light and the laser light passing through the relay lens 210, the center of the spot having the spot is approximately coincident, and the light homogenizing device 211 is disposed at the position, so that the light homogenizing device 211 can be scattered. After the first part of the excitation light and the laser light are homogenized, the emitted light is not only small in size, but also the light around the spot is uniform light and approximately parallel light.

The focused first partial excitation light emitted by the relay lens 210 and a predetermined position on the laser-exposed light path are defined as a second preset position 213, and the light at the first preset position 212 is imaged. The spot area coincides with the spot area of the light imaging at the second predetermined position 213. Further, the spot shape of the light imaged at the first preset position 212 and the spot shape of the light imaged at the second preset position 213 also coincide.

In this embodiment, the second preset position 213 is the first partial excitation light emitted by the relay lens 210 and the position closest to the relay lens 210 on the laser light exiting path, which can be understood. The setting of the position is advantageous for detecting the spot here to adjust the optical path of the light source system 100.

The light-sharing device 211 may be a light entrance element of the projector light machine, and is disposed on the focused first partial excitation light and the laser-emitting light path emitted by the relay lens 210 after focusing, for receiving The focused first portion of the excitation light and the received laser light are used to homogenize and shape the focused first portion of the excitation light and the laser light for use in subsequent projection or display.

In this embodiment, the light homogenizing device 211 is a pair of fly-eye lenses, and the pair of fly-eye lenses may include a first fly-eye lens and a second fly-eye lens that are continuously disposed in front and rear. Since the relay lens 210 emits uniform parallel light, the light-shaping device of the fly-eye lens pair is better enough to the relay lens 210 than other light-shaping devices such as other light-dancing rods. The exiting light is homogenized to provide a more uniform beam for the subsequent optical system. Specifically, the light homogenizing device 211 may be disposed adjacent to the second preset position 213, and the focused first partial excitation light and the received laser light emitted by the relay lens 210 after focusing The spot area formed on the fly-eye lens is also substantially the same as the spot size of the light imaged at the second predetermined position 213, and thus substantially coincides with the spot area of the light imaged at the first preset position 212.

Compared with the prior art, the light source system 200 sets the relay lens 210 in the light exit channel 217 after the light splitting and combining device 205, and the scattered first portion is emitted by the light splitting and combining device 205. Both the excitation light and the received laser light are focused by the relay lens 210, so that the light beams emitted by the light source system 200 are collected, and the light homogenizing device 211 of the subsequent optical path system (such as a projector optical machine) is improved. The use of light beams is low and the light efficiency is low.

In particular, in an embodiment, when the spot area of the light imaged at the first preset position 212 coincides with the spot size of the light imaged at the second preset position 213, the light beam is equivalent to The light-harvesting device 211 is entered at the first preset position 212, which can improve the problem that the spot area is large due to the divergence of the optical path length during the transmission process, so that the light-harvesting device 211 can improve the light beam. The utilization rate is to improve the light efficiency.

In an embodiment, the light source system 200 further includes a first collection lens 206 and a second collection lens 208, and the first collection lens 206 focuses the scattered first partial excitation light emitted by the scattering device 207. Then, the second collecting lens 208 is disposed between the wavelength converting device 209 and the beam splitting device 205, and the second collecting lens 208 converts the wavelength. The laser light emitted by the device 209 is focused and then guided to the spectroscopic unit 205. The subsequent relay lens 210 can make it easier to focus the light beam emitted by the beam splitting device 205, and the light spot of the light source system 200 that is incident on the light homogenizing device 211 is better. The light homogenizing device 211 The utilization of the beam is higher.

Please refer to FIG. 3. FIG. 3 is a schematic structural diagram of a light source system 300 according to a second embodiment of the present invention. The light source system 300 is substantially the same as the light source system 200 of the first embodiment, that is, the description for the light source system 200 can be basically applied to the light source system 300, the main difference between the two being: the second implementation In the light source system 300 of the mode, the number of the first collecting lens 306 and the second collecting lens 308 is one, and the relay lens 310 is closer to the light homogenizing device 311 than in the second embodiment. Specifically, the light beam emitted by the scattering device 307 is initially focused by the first collecting lens 306 and then injected into the relay lens 310 via the beam splitting device 305, and the relay lens 310 is further emitted to the beam splitting device 305. The light beam is focused and then supplied to the light homogenizing device 311.

Compared with the first embodiment, since the position of the relay lens 310 is closer to the light homogenizing device 311, the beam transmission loss between the relay lens 310 and the light homogenizing device 311 can be minimized. Thereby improving the light efficiency of the entire light source system 300.

Please refer to FIG. 4. FIG. 4 is a schematic structural diagram of a light source system 400 according to a third embodiment of the present invention. The light source system 400 is substantially the same as the light source system 200 of the first embodiment, that is, the description for the light source system 400 can be basically applied to the light source system 200, the main difference between the two being: the third implementation The light source system 400 further includes a light shaping device 418 disposed between the relay lens 410 and the light homogenizing device 411 for emitting a light beam to the relay lens 410 (eg, The first part of the excitation light and the laser are shaped. Specifically, the light shaping device 418 can be a compound parabolic concentrator (Compound) Parabolic Concentrator (CPC), the inlet thereof may be set corresponding to the second preset position 413, and the exit of the light shaping device 418 further defines a third preset position 415, and the light imaging spot shape at the third preset position 415 Consistent with the shape of the light entrance element of the subsequent optical path system (i.e., the first fly-eye lens of the leveling device 411), the subsequent optical path system (the leveling device 411) can be made more efficient.

Specifically, the shape of the spot at the second preset position 413 is circular or elliptical, the entrance of the light shaping device 412 corresponds to a circular or elliptical shape, and the first fly-eye lens of the light homogenizing device 411 The shape of the light shaping device 418 is rectangular, and the shape of the light imaged at the third predetermined position 415 is rectangular. In particular, due to the shape of each lens unit in the first fly-eye lens located on the optical path in the light homogenizing device 411 and the focused first partial excitation light and the laser received by the relay lens 410 after focusing The shape of the spot formed on the first fly-eye lens is uniform, so that the first part of the excitation light of the light-smoothing device 411 and the uniformity and shaping effect of the laser light are substantially the same, not only the overall light effect is improved, but also The light intensity and uniformity of the homogenizing device 411 are improved.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of a light source system according to a fourth embodiment of the present invention. The light source system 500 includes an excitation light source 501, a compression lens module 516, a light homogenizing member 504, a scattering device 507, a first collection lens 506, a beam splitting device 505, a wavelength conversion device 509, a second collection lens 508, and a relay. Lens 510 and light homogenizing device 511.

The excitation light source 501, the compression lens module 516, the light-sharing member 504, the scattering device 507, the first collection lens 506, the beam splitting device 505, the wavelength conversion device 509, the second collection lens 508, the relay lens 510, and the uniform The optical device 511 and the excitation light source 201, the compression lens module 216, the light homogenizing member 204, the scattering device 207, the first collecting lens 206, the spectroscopic light combining device 205, and the wavelength conversion device 209, respectively, in the first embodiment. The second collecting lens 208, the relay lens 210, and the light homogenizing device 211 have substantially the same structure, that is, for the excitation light source 201, the compression lens module 216, the light homogenizing member 204, the scattering device 207, the first collecting lens 206, The descriptions of the components of the optical splitting device 205, the wavelength converting device 209, the second collecting lens 208, the relay lens 210, and the light homogenizing device 211 can be basically applied to the excitation light source 501, the compression lens module 516, and the light-sharing component. 504, each of the elements of the scattering device 507, the first collecting lens 506, the beam splitting device 505, the wavelength converting device 509, the second collecting lens 508, the relay lens 510, and the light homogenizing device 511. However, the main difference between the fourth embodiment and the first embodiment is that the spectroscopic method of the spectroscopic unit 505 is different from that of the spectroscopic unit 205 of the first embodiment, and the scattering device 507 is first. The positions of the collecting lens 506, the beam splitting unit 505, the wavelength converting device 509, the second collecting lens 508, and the scattering device 207, the first collecting lens 206, the wavelength converting device 209, and the second collecting lens 208 in the first embodiment are The difference is that the optical path principle of the overall light source system 500 is different from that of the light source system 200 of the first embodiment.

Specifically, the light combining and combining device 505 is located on the optical path of the excitation light emitted by the excitation light source 501, and the light combining and combining device 505 is configured to receive the light through the compression lens module 516 and the light homogenizing component 504. Deriving a first portion of the excitation light in the excitation light and transmitting the received first partial excitation light to the scattering device 507 (also referred to as scattered light), the spectral combining device 505 being further configured to pass the compression lens mold Group 516 and the light homogenizing component 504 receive a second portion of the excitation light in the excitation light and reflect the received second partial excitation light to the wavelength conversion device 509.

The scattering device 507 is configured to scatter and reflect the first partial excitation light transmitted by the spectroscopic unit 505 to provide the scattered first partial excitation light to the spectroscopic unit 505. The light combining and illuminating device 505 is further configured to receive the scattered first portion of the excitation light emitted by the scattering device 507 and reflect the scattered first portion of the excitation light to provide the light combining and combining device The light exit channel 517 of the 505.

The first collecting lens 506 is located on an optical path between the scattering device 507 and the beam splitting device 505 for focusing or collimating the first portion of the excitation light on the optical path. It can be understood that the first collecting lens 506 can be a convex lens, and the number thereof can be two. The scattered first partial excitation light emitted by the scattering device 207 is first focused by the first first collecting lens 206a and then guided to the second first collecting lens 206b, the second first collecting The lens further collimates the scattered first portion of the excitation light and directs it to the spectroscopic unit 505.

The wavelength conversion device 509 is disposed on the optical path of the second partial excitation light reflected by the spectroscopic unit 505, and includes a fluorescent material for converting the reflected second partial excitation light into a laser, and The laser is reflected back to the spectroscopic unit 505. The light combining and illuminating device 505 is further configured to transmit the received laser light to the light exiting channel 517, the received laser light and the scattered first partial excitation light at the beam splitting light combining device 505 and the light exiting channel 517 Forming a light in the middle. In the present embodiment, the wavelength conversion device 509 is a reflective fluorescent color wheel including a yellow fluorescent material, the received laser light is a yellow received laser light, and the blue excitation light is combined with the yellow received laser light to form white light. Of course, it is to be understood that, in the modified embodiment, the blue excitation light and the received laser light are not limited to the above, and may be other colors, and the combined light combining device 505 and the light exit channel 517 may also be combined. It is set to other colors such as orange and green according to actual needs, and is not limited to white.

The second collecting lens 508 is disposed between the wavelength converting device 509 and the beam splitting device 505, and the second collecting lens 508 is configured to the splitting and combining device 505 and the wavelength converting device 509. The excitation light in the optical path is focused or collimated by the laser.

It can be understood that the second collecting lens 508 can be a convex lens, and the number thereof can be two. Specifically, a preset position of the laser light emitted by the wavelength conversion device 509 before entering the light combining and combining device 505 is defined as a first preset position 512, and the two second collecting lenses 508 are both set. Between the wavelength conversion device 509 and the first preset position 512, specifically, the first one of the two second collection lenses 508 is used for the wavelength conversion device 509. The emitted laser light is focused, and the second of the two second collecting lenses 508 is used to collimate the laser light emitted by the first second collecting lens 508a. The optical combining device 505 is described.

The relay lens 510 is disposed in the light exit channel 517, which may be an aspherical lens, and the scattered first partial excitation light and the received laser light emitted by the light combining and combining device 505 are all via the middle After the lens 510 is focused, it is emitted.

The focused first partial excitation light emitted by the relay lens 510 and a predetermined position on the laser-emitting light path are defined as a second preset position 513, and the light at the first preset position 512 is imaged. The spot area coincides with the spot area of the light imaged at the second predetermined position 513. Further, the spot shape of the light imaged at the first preset position 512 and the spot shape of the light imaged at the second preset position 513 also coincide.

The light homogenizing device 511 may be a light entrance element of the projector optical machine, and is disposed on the focused first partial excitation light and the laser light emitting light path emitted by the relay lens 510 after focusing, for receiving The focused first portion of the excitation light and the received laser light are used to homogenize and shape the focused first portion of the excitation light and the laser light for use in subsequent projection or display.

Specifically, the light homogenizing device 511 can be disposed adjacent to the second preset position 513, and the focused first partial excitation light and the laser received laser beam are emitted after the relay lens 510 is focused. The spot area formed on the fly-eye lenses is also substantially the same as the spot size of the light imaged at the second predetermined position 513, and thus substantially coincides with the spot area of the light imaged at the first preset position 512.

Compared with the prior art, the light source system 500 sets the relay lens 510 in the light exit channel 517 after the beam splitting device 505, and the scattered first portion of the light splitting device 505 Both the excitation light and the received laser light are focused by the relay lens 510 and emitted, so that the light beams emitted by the light source system 500 are collected, and the light homogenizing device 511 of the subsequent optical path system (such as a projector optical machine) is improved. The use of light beams is low and the light efficiency is low.

In particular, in an embodiment, when the spot area of the light imaged at the first preset position 512 is the same as the spot size of the light imaged at the second preset position 513, the light beam is equivalent to The light-harvesting device 511 is entered at the first preset position 512, which can improve the problem that the spot area is large due to the divergence of the optical path length during the transmission process, so that the light-harvesting device 511 can improve the light beam. The utilization rate is to improve the light efficiency.

In one embodiment, the light source system 500 further includes a first collection lens 506 and a second collection lens 508 that focuses the scattered first partial excitation light emitted by the scattering device 507. Then, the second collecting lens 508 is disposed between the wavelength converting device 509 and the beam splitting device 505, and the second collecting lens 508 converts the wavelength. The laser light emitted by the device 509 is focused and then guided to the spectroscopic unit 505. The subsequent relay lens 510 can make it easier to focus the light beam emitted by the beam splitting device 505, and the light spot of the light source system 500 that is incident on the light homogenizing device 511 is better. The light homogenizing device 211 The utilization of the beam is higher.

Please refer to FIG. 6. FIG. 6 is a schematic structural diagram of a light source system 600 according to a fifth embodiment of the present invention. The light source system 600 is substantially the same as the light source system 500 of the fourth embodiment, that is, the description for the light source system 500 can be basically applied to the light source system 600, the main difference between the two being: the fifth implementation In the light source system 600 of the mode, the number of the first collecting lens 606 and the second collecting lens 608 is one, and the relay lens 610 is closer to the light homogenizing device 611 than in the second embodiment. Specifically, the light beam emitted by the scattering device 607 is initially focused by the first collecting lens 606 and then injected into the relay lens 610 via the beam splitting device 605. The relay lens 610 is further emitted to the beam splitting device 605. The light beam is focused and then supplied to the light homogenizing device 611.

Compared with the first embodiment, since the relay lens 610 is closer to the light homogenizing device 611, the beam transmission loss between the relay lens 610 and the light homogenizing device 611 can be minimized. Thereby improving the light efficiency of the entire light source system 600.

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of a light source system 700 according to a sixth embodiment of the present invention. The light source system 700 is substantially the same as the light source system 700 of the fourth embodiment, that is, the description for the light source system 700 can be basically applied to the light source system 500, the main difference between the two being: the sixth implementation The light source system 700 further includes a light shaping device 711 disposed between the relay lens 710 and the light homogenizing device 712 for emitting a light beam to the relay lens 710 (eg, The first part of the excitation light and the laser are shaped. Specifically, the light shaping device 711 can be a compound parabolic concentrator (Compound) Parabolic Concentrator (CPC), the entrance may be corresponding to the second preset position 713, and the exit of the light shaping device 711 further defines a third preset position 715, and the light spot shape of the light at the third preset position 715 Consistent with the shape of the light entrance element of the subsequent optical path system (i.e., the first fly-eye lens of the leveling device 712), the subsequent optical path system (the leveling device 712) can be made more efficient.

Specifically, the shape of the spot at the second preset position 713 is circular or elliptical, the entrance of the light shaping device 712 corresponds to a circular or elliptical shape, and the first fly-eye lens of the light homogenizing device 712 The shape of the light shaping device 711 is rectangular, and the shape of the light imaged at the third predetermined position 715 is rectangular. In particular, due to the shape of each lens unit in the first fly-eye lens located on the optical path in the light homogenizing device 712 and the focused first partial excitation light and the laser received by the relay lens 710 after focusing The shape of the spot formed on the first fly-eye lens is uniform, so that the first part of the excitation light of the light homogenizing device 712 and the uniformity and shaping effect of the laser light are substantially the same, not only the overall light effect is improved, but also The light intensity and uniformity of the homogenizing device 712 are improved.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of a light source system 800 according to a seventh embodiment of the present invention. The light source system 800 includes an excitation light source 801, a first beam splitting device 802, a first reflecting device 803, a second reflecting device 804, a first collecting lens 806, a second collecting lens 808, a scattering device 807, and a wavelength converting device 809. And a second optical splitting device 805, a relay lens 810, and a light homogenizing device 812.

The excitation light source 801 is for emitting excitation light. The excitation light source 801 can be a semiconductor diode or a semiconductor diode array. The semiconductor diode array may be a laser diode (LD) or a light emitting diode (LED) or the like. The excitation light may be blue light, purple light or ultraviolet light, etc., but is not limited to the above. In this embodiment, the excitation light source 801 is a blue optical semiconductor diode for emitting blue excitation light.

The first beam splitting device 802 is located on the optical path of the excitation light emitted by the excitation light source 801. The first splitting light combining device 802 is configured to receive the first partial excitation light of the excitation light and reflect the received first partial excitation light by the first reflection device 803 and the second reflection device 804 And the first portion of the excitation light is directed to the scattering device 807. The scattering device 807 receives the first partial excitation light from the second reflection device 804 and transmits the first excitation light to be guided to the second spectral combining device 805. In the embodiment, the scattering device 807 may be a transmissive scattering powder sheet. Light emitted by the scattering device 807 (eg, the first portion of the scattered excitation light) is concentrated by the first collection lens 806 and then supplied to the second beam splitting device 805.

The first beam splitting device 802 is further configured to transmit a second portion of the received excitation light and transmit the received second portion of the excitation light to be guided to the wavelength conversion device 809. The wavelength conversion device 809 is a transmissive wavelength conversion device, such as a transmissive phosphor sheet or a fluorescent color wheel, comprising a fluorescent material for converting the transmitted second partial excitation light into a laser light, and The laser is retransmitted to the splitting light combining device 805; as will be understood by those skilled in the art, the wavelength converting device 809 can direct at least a portion of the received laser light to the second splitting light combining device 805. In this embodiment, the light emitted by the wavelength conversion device 809 (eg, received by the laser light) is concentrated by the second collection lens 808 and then supplied to the second beam splitting device 805.

The second splitting light combining device 805 is configured to guide the second partial excitation light to the light exiting channel 817, and the received laser light and the scattered first partial excitation light are at the light splitting and combining device 805 And combining light is formed in the light exiting channel 817. In the present embodiment, the wavelength conversion device 809 includes a yellow fluorescent material, the received laser light is a yellow received laser light, and the blue excitation light is combined with the yellow laser light to form white light. Of course, it is to be understood that, in the modified embodiment, the blue excitation light and the received laser light are not limited to the above, and may be other colors, and the second splitting light combining device 805 and the light exiting channel 817 are combined. It can also be set to other colors such as orange and green according to actual needs, and is not limited to white.

Further, it can be understood that, in the first embodiment, the first beam splitting device 802 may be a plurality of glass sheets superimposed to achieve different transmittances and reflectances, thereby having the above-mentioned first portion of the excitation light, The second portion of the excitation light and the reflection and transmission characteristics of the laser; in the second embodiment, the first beam splitting device 802 can adopt a region splitting mode, such as the first region guiding the first portion of the excitation light to the scattering device 807, the second region guides the second portion of the excitation light to the wavelength conversion device 809, and the first region and the second region further have the above-mentioned light emitted from the scattering device 807 and the wavelength conversion device 809 The first region and the second region may each have a guiding effect by using a region coating method, and at least one region of the first region and the second region may also adopt a hole-cutting manner, such as the first The area is an opening area for puncturing a specific area (such as a central area) of the first beam splitting device 802, thereby directly guiding the light beam by means of transmission The second region may be a reflection region so that reflective manner to guide the light beam. That is to say, the first optical splitting device 802 can be used in various ways, and is not limited to the above manner. The specific structure of the first optical combining and combining device 802 will not be described herein.

Similarly, the second optical combining device 805 may be a plurality of glass sheets superimposed to achieve different transmittances and reflectances, thereby having the above-mentioned reflection and transmission of the first partial excitation light, the second partial excitation light, and the received laser light. In the second embodiment, the second beam splitting device 805 can adopt a region splitting mode, such as the first region guiding the first portion of the excitation light to the light exit channel 817, and the second region guiding the second portion of the excitation light. To the light exiting channel 817, the first region and the second region may each have a guiding effect by using a region coating method, and at least one region of the first region and the second region may also adopt a hole-cutting manner, such as The first region is a region in which the second beam splitting device 805 is a reflective region and is guided by reflection, and the second region is an opening region in which a specific region (such as a central region) is bored, thereby directly adopting a transmission. The way to guide the beam. That is to say, the second optical splitting device 805 can be adopted in various manners, and is not limited to the above manner, and the specific structure of the second optical combining and combining device 805 will not be described herein.

The relay lens 810 is disposed in the light exit channel 817, and may be an aspherical lens. The scattered first partial excitation light and the received laser light emitted by the second splitting light combining device 805 are both The relay lens 810 is focused and emitted.

The light-sharing device 811 may be a light entrance element of the projector illuminator, and is disposed on the focused first partial excitation light and the laser-emitting light path emitted by the relay lens 810 after focusing, for receiving The focused first portion of the excitation light and the received laser light are used to homogenize and shape the focused first portion of the excitation light and the laser light for use in subsequent projection or display.

In this embodiment, the light homogenizing device 811 is a pair of fly-eye lenses, and the pair of fly-eye lenses may include a first fly-eye lens and a second fly-eye lens that are continuously disposed in front and rear. Since the relay lens 810 emits uniform parallel light, the light-shaping device of the fly-eye lens pair is better enough to the relay lens 810 than other light-shaping devices such as other light-dancing rods. The exiting light is homogenized to provide a more uniform beam for the subsequent optical system.

Compared with the prior art, the light source system 800 sets the relay lens 810 in the light exit channel 817 after the second beam splitting device 805, and the scattering by the second beam splitting device 805 After the first portion of the excitation light and the received laser light are both focused by the relay lens 210 and emitted, the light beams emitted by the light source system 800 are collected to improve the homogenizing device of the subsequent optical path system (such as a projector optical machine). 811 is a case where the utilization rate of the light beam is low and the light efficiency is low.

It can be understood that, in this embodiment, similar to the first embodiment and the fourth embodiment, the first preset position 812 before the relay lens 810 and the second preset position 813 after the relay lens 810 The shape and area of the light image at the location can also be substantially the same. Further, in the modified embodiment of the seventh embodiment shown in FIG. 8, the positions of the scattering device 807 and the wavelength conversion device 808 may be interchanged, similar to the first and fourth embodiments, the first The number of the collection lenses 806 may also be two collection lenses that are continuously disposed. The number of the second collection lenses 808 may also be two collection lenses that are continuously disposed, and the relay lens 810 and the fly-eye lens pair 811 The light shaping device as shown in FIG. 5 of the fourth embodiment may be further disposed to shape the beam incident to the fly-eye lens pair 811 to a spot shape substantially identical to the first fly-eye lens pair of the fly-eye lens pair. . Since the features of the above changes have been described and described in the first to seventh embodiments, they will not be described again.

The present invention also provides a display device, which may be a projection device, such as an LCD, DLP, LCOS projection device, the display device may include a light source system, a light modulation device, and a projection lens, and the light source system adopts any of the above A light source system of a light source system 200, 300, 400, 500, 600, 700, 800 of one embodiment or a modified embodiment of the above-described light source systems 200, 300, 400, 500, 600, 700, 800. The light modulating device is configured to output modulated image light according to the light emitted by the light source system and the input image data, and the projection lens is configured to display the projected image according to the modulated image light. The display device of the light source system using the above-described light source systems 200, 300, 400, 500, 600, 700, 800 and its modified embodiment has a high light utilization rate and a good color uniformity of an image.

In addition, it can be understood that the light source systems 200, 300, 400, 500, 600, 700, 800 of the present invention and the light source system of the modified embodiment thereof can also be used for a stage light system, an in-vehicle lighting system, a surgical lighting system, etc., without limitation. The above projection device.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformation of the present invention and the contents of the drawings may be directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims

A light source system, comprising: an excitation light source, a scattering device, a wavelength conversion device, a beam splitting device, and a relay lens, wherein the excitation light source is for emitting excitation light, and the light splitting light is combined The device is configured to direct a first portion of the excitation light emitted by the excitation light source to the scattering device, and the light combining and combining device is further configured to direct a second portion of the excitation light emitted by the excitation light source to the wavelength conversion device,

The light source system according to claim 1, wherein the scattered first partial excitation light emitted by the scattering device or the laser light emitted by the wavelength conversion device before entering the spectroscopic light combining device The preset position is defined as a first preset position, and the focused first partial excitation light emitted by the relay lens and a predetermined position on the laser-emitting light path are defined as a second preset position, The spot area of the light image at the first predetermined position coincides with the spot size of the light imaged at the second preset position.

The light source system according to claim 1 or 2, wherein the light source system further comprises at least one first collecting lens, wherein the at least one first collecting lens is disposed on the scattering device and the photosynthetic unit Between the optical devices, the at least one first collection lens is configured to focus light in an optical path between the scattering device and the spectroscopic unit.

The light source system according to claim 3, wherein the number of the at least one first collecting lens is two, and the two first collecting lenses are disposed on the scattering device and the first Between the preset positions, the scattered first partial excitation light emitted by the scattering device is first focused by the first first collecting lens and then guided to the second first collecting lens, the second The first collecting lens further collimates the scattered first partial excitation light and leads to the spectroscopic light combining device via the first preset position.

The light source system according to claim 3, wherein the first preset position is a position closest to the at least one first collecting lens, and the second preset position is closest to the middle Following the position of the lens.

The light source system according to claim 2, wherein the light source system further comprises a light shaping device, an inlet of the light shaping device is corresponding to the second preset position and is used for the relay The focused first partial excitation light and the laser lighted by the lens are shaped, and the third preset position is further defined at the exit of the light shaping device, and the light imaging spot shape at the third predetermined position It conforms to the shape of the light entrance element of the subsequent optical path system.

The light source system according to claim 1 or 6, wherein the light source system further comprises a light homogenizing device, wherein the light homogenizing device is disposed after the focused first portion of the relay lens is focused and excited Light and the laser-exposed light path for receiving the focused first partial excitation light and the received laser light, and the shape and shape of each lens unit in the first fly-eye lens located on the optical path in the light homogenizing device The focused first partial excitation light emitted by the relay lens after focusing and the spot shape formed by the laser light on the first fly-eye lens are identical for the first partial excitation light and the focus It is described that the laser is used for shimming and shaping.

The light source system according to claim 6, wherein the spot shape of the light imaged at the third predetermined position is a rectangle; and the spot shape of the light imaged at the second preset position is a circle Or oval.

The light source system of claim 1 , wherein the light source system further comprises at least one second collecting lens, wherein the at least one second collecting lens is disposed at the wavelength conversion device and the splitting light In the optical path between the devices, the at least one second collecting lens is for focusing light in an optical path between the wavelength conversion device and the spectroscopic unit.

The light source system according to claim 9, wherein the number of the at least one second collecting lens is two, and the first one of the two second collecting lenses is used for The laser beam is emitted by the wavelength conversion device, and the second second collection lens of the two second collection lenses is used for collimating and re-providing the laser light emitted by the first second collection lens To the splitting and combining device.

11. The light source system of claim 1, wherein the spectroscopic light combining device receives excitation light emitted by the excitation light source and reflects the first partial excitation light to the scattering device, and a second portion of the excitation light transmitted to the wavelength conversion device, the scattering device scatters and reflects the first portion of the excitation light to the spectroscopic unit, the wavelength conversion device converting the second portion of the excitation light It is subjected to laser light and reflected to the spectroscopic unit.

12. The light source system of claim 1, wherein the spectroscopic light combining device receives excitation light emitted by the excitation light source and transmits the first partial excitation light to the scattering device, and a second portion of the excitation light is reflected to the wavelength conversion device, the scattering device scatters and reflects the first portion of the excitation light to the spectroscopic light combining device, and the wavelength conversion device converts the second portion of the excitation light It is subjected to laser light and reflected to the spectroscopic unit.

The light source system according to claim 1, wherein the light source system further comprises at least one reflecting device, wherein the beam splitting light combining device comprises a first beam splitting light combining device and a second beam splitting light combining device, The first splitting light combining device receives the excitation light emitted by the excitation light source and directs the first partial excitation light to the at least one reflection device, and the at least one reflection device directs the first partial excitation light to the scattering The first spectroscopic light combining device also directs the second partial excitation light to the wavelength conversion device, the scattering device scatters and directs the first partial excitation light to the second split light a device, the wavelength conversion device converting the second partial excitation light into a laser received light and guiding to the second spectral combining device, the second spectral combining device to the first partial excitation light and the receiving A laser is guided to the light exit channel and the relay lens.

14. The light source system of claim 1, wherein the excitation light is blue excitation light, the wavelength conversion device comprises a yellow fluorescent material, and the received laser light is a yellow received laser light.

A display device comprising a light source system, characterized in that the light source system employs the light source system of any one of claims 1-14.