WO2020119398A1 - 光源系统及显示设备 - Google Patents

光源系统及显示设备 Download PDF

Info

Publication number
WO2020119398A1
WO2020119398A1 PCT/CN2019/119153 CN2019119153W WO2020119398A1 WO 2020119398 A1 WO2020119398 A1 WO 2020119398A1 CN 2019119153 W CN2019119153 W CN 2019119153W WO 2020119398 A1 WO2020119398 A1 WO 2020119398A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
source system
light source
area
sub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/119153
Other languages
English (en)
French (fr)
Inventor
徐应荣
侯海雄
杜鹏
李屹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Appotronics Corp Ltd
Original Assignee
Appotronics Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Publication of WO2020119398A1 publication Critical patent/WO2020119398A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/208—Homogenising, shaping of the illumination light

Definitions

  • the invention relates to the technical field of light sources, in particular to a light source system and a display device.
  • the area expansion is usually used to separate the two by using the optical expansion, but this design has a technical difficulty in the area size design. If the area design is too large, it will cause yellow spots in the far-field light spot, which affects the uniformity of the projected picture. In addition, too large an area will cause the reflected primary blue light to be inefficient, affecting the optical efficiency of the entire light source; if the area design is too small, it will lead to the front
  • the design of the optical system is complicated, and the light energy density in the area is too large, which can easily burn out the area diaphragm and affect the reliability of the entire light source.
  • the present invention provides a light source system that avoids the use of regional diaphragms, which can effectively improve the uniformity of the displayed image and the light efficiency of the light source system.
  • the present invention also provides a display device including the light source system.
  • a light source system including:
  • Excitation light source used to emit excitation light
  • a spectroscopic device which divides the excitation light into first light transmitted along the first optical path and second light transmitted along the second optical path in time series, and filters the received laser light converted by the wavelength conversion device, after filtering Of the received laser light and the second light exit the same optical path;
  • a wavelength conversion device is provided on the first optical path, and is used to perform wavelength conversion on at least a part of the first light to obtain the received laser light, and emit the received laser light to the spectroscopic device.
  • a display device includes the light source system described above.
  • the use of regional diaphragms is avoided, so that the angular distribution of the transmitted light beam in the light source system is continuous, and no yellow spots appear in the far-field light spot, which is beneficial to improve the light source system and the display device
  • the uniformity of the outgoing light and is conducive to improving the light efficiency and reliability of the light source system.
  • FIG. 1 is a schematic structural diagram of a light source system provided by the present invention.
  • FIG. 2 is a schematic structural view of the light splitting device shown in FIG. 1.
  • FIG. 3 is a schematic top structural view of an embodiment of the wavelength conversion device shown in FIG. 1.
  • FIG. 4 is a schematic plan view of the wavelength conversion device shown in FIG. 1 in another embodiment.
  • FIG. 5 is a light transmittance curve of the light combining device shown in FIG. 1.
  • Light source system 10 Excitation light source 100 Spectroscopic device 200 Drive 201, 401 First area 210 First subregion 211 Second subregion 212 Second area 220 Wavelength conversion device 400
  • Transition zone 410 First section R Second section G
  • Non-transition area B Relay lens 501, 502, 503, 504 Reflector 600
  • Light combining device 800 Uniform light device 900
  • FIG. 1 is a schematic structural diagram of a light source system 10 provided by the present invention.
  • the light source system 10 provided by the present invention can be applied to display devices such as engineering machine light sources, educational projectors, laser TVs, and mini projectors.
  • the light source system 10 includes an excitation light source 100, a spectroscopic device 200, and a wavelength conversion device 400.
  • the excitation light source 100 is used to emit excitation light;
  • the light splitting device 200 is used to sequentially divide the excitation light into first light transmitted along the first optical path and second light transmitted along the second optical path, wherein the first light is used to It is transmitted along the first optical path and enters the wavelength conversion device 400 to generate a received laser light having a color different from that of the excitation light, and the second light is used to emit from the light source system 10 as the primary color light of the light source system 10 after being transmitted along the second optical path.
  • the wavelength conversion device 400 is used to perform wavelength conversion on at least part of the first light propagating along the first optical path to obtain the received laser light, and emit the received laser light to the beam splitting device 200.
  • the beam splitting device 200 is used to receive the received laser light emitted by the wavelength conversion device 400 and The received laser light is filtered, and the filtered received laser light emitted by the spectroscopic device 200 and the second light transmitted along the second optical path are guided by other optical elements and then exit along the same optical path.
  • a beam splitter 200 is used to guide part of the excitation light to the first optical path for wavelength conversion to obtain the received laser light, and another part of the excitation light is guided to the second optical path to obtain the second light.
  • the received laser beam after the light and the second light on the second optical path are guided by other optical elements and then exit along the same optical path to obtain the light source light emitted by the light source system 10.
  • the use of regional diaphragms in the light source system 10 is avoided, which is conducive to the continuous angular distribution of the light beam transmitted in the light source system 10, avoids the appearance of yellow spots in the far-field spot, and improves the uniformity of the light emitted by the light source system 10 and the display device , And help to improve the light efficiency and reliability of the light source system 10.
  • the light splitting device 200 in the light source system 10 is also used to filter the received laser light, which is beneficial to improve the light purity of the light source system 10 and thereby expand the color gamut range of the light source system 10.
  • the excitation light source 100 is a blue light source for emitting blue light as excitation light. It can be understood that the excitation light source 100 may also be other short-wavelength light sources, such as ultraviolet light sources.
  • the excitation light source 100 is a laser or a laser array, and the number of lasers can be selected according to actual needs. In one embodiment, the excitation light source 100 may also be a light emitting diode or a light bulb light source.
  • FIG. 2 is a schematic top view of the beam splitter 200 shown in FIG. 1.
  • the surface of the spectroscopic device 200 includes a first region 210 and a second region 220.
  • the first region 210 is used to reflect the excitation light and filter the laser light generated by the wavelength conversion device 400, and the second region 220 is used to transmit the excitation light.
  • the first light is obtained by the spectroscopic device 200 reflecting the excitation light
  • the second light is obtained by the spectroscopic device 200 transmitting the excitation light.
  • the first light is obtained by the excitation light transmitted by the spectroscopic device 200
  • the second light is obtained by the reflection light of the spectroscopic device 200.
  • the first area 210 includes a first sub-area 211 and a second sub-area 212 both used to reflect the first light, wherein the first sub-area 211 and the second sub-area 212 are respectively used to perform light of different colors Filter.
  • the first sub-region 211, the second sub-region 212, and the second region 220 are adjacent to each other; in another embodiment, the first sub-region 211, the second sub-region 212, and the second region There is a gap between 220.
  • the excitation light is blue light
  • the second region 220 may be a hollow region, an antireflection film, or a filter that can transmit blue light.
  • the second region 220 may be a transmissive scattering membrane.
  • the excitation light is ultraviolet light
  • the second region 220 is provided with a wavelength conversion material to convert the excitation light into a primary color light and transmit it to the second optical path, such as setting a blue phosphor to Under the excitation of ultraviolet excitation light, blue fluorescence is generated as the second light.
  • the light source system 10 periodically emits three primary colors of red, green, and blue.
  • the first sub-region 211 and the second sub-region 212 are used to transmit red light and green light based on the reflected blue light, respectively.
  • both the first sub-region 211 and the second sub-region 212 are used to reflect blue light and transmit yellow light.
  • the first sub-region 211 and the second sub-region 212 are used to modify the color of different colors of the incident laser light, for example, the first sub-region 211 is used to filter the red fluorescence in the received laser light. Light color correction.
  • the second sub-region 212 is used to filter and repair the green fluorescence in the laser light, which is beneficial to improve the purity of the primary color light emitted by the spectroscopic device 200.
  • the light splitting device 200 includes a plurality of sub-regions for filtering more than two colors of light to generate four primary colors, five primary colors, or more primary colors of the light source system 10.
  • the light source system 10 further includes a driving device 201.
  • the spectroscopic device 200 rotates periodically under the driving of the driving device 201.
  • the first area 210 and the second area 220 are used to receive excitation light alternately.
  • the first sub-area 211, the second The sub-region 212 and the second region 220 are used to receive excitation light alternately, and the spectroscopic device 200 sequentially emits the second light and the red fluorescence after color correction and the green fluorescence after color correction.
  • the spectroscopic device 200 has a strip shape, and the surface of the spectroscopic device 200 is linearly provided with a first sub-region 211, a second sub-region 212, and a second region 220.
  • the spectroscopic device 200 is driven by the driving device 201 to perform periodic reciprocation The movement causes the first sub-region 211, the second sub-region 212, and the second region 220 to periodically receive excitation light.
  • FIG. 3 is a schematic top view of the wavelength conversion device 400 shown in FIG. 1 in the first embodiment.
  • the wavelength conversion device 400 includes a conversion area 410 for receiving the first light and converting the first light into a laser beam of other colors.
  • the conversion area 410 is provided with a wavelength conversion material, such as a yellow phosphor, for receiving excitation The light does not emit yellow light and receives laser light.
  • the wavelength conversion device 400 is a rotating color wheel, which is periodically rotated by the driving device 401 (see FIG. 1) to alleviate the local high-temperature condition of the wavelength conversion device 400 and help to improve the wavelength conversion device 400 Conversion efficiency.
  • the wavelength conversion device 400 is a fixed fluorescent sheet.
  • FIG. 4 is a schematic top view of the wavelength conversion device 400 shown in FIG. 1 in another embodiment.
  • the wavelength conversion device 400 includes a conversion region 410 including a first section R and a second section G, wherein the first section R is used to convert the first light into the first color of the received laser light, the second The section G is used to convert the first light into the second color of the received laser.
  • the first section R and the second section G are periodically located on the optical path of the first light.
  • the first section R and the second section G are respectively provided with different wavelength conversion materials, for example, the first section R is provided with a red phosphor to generate red fluorescence under the excitation of the blue first light as the received laser In the second section G, a green phosphor is provided to generate green fluorescence under the excitation of the blue first light as a received laser.
  • the wavelength conversion device 400 further includes a non-conversion area B, and the first section R, the second section G, and the non-conversion area B are periodically located on the optical path of the first light, that is, the first optical path.
  • the wavelength conversion device 400 is also used to guide the generated laser beam to the beam splitter 200, for example, to reflect the laser beam to the beam splitter 200.
  • the wavelength conversion device 400 is also used to convert the generated beam The laser is transmitted to the spectroscopic device 200.
  • the wavelength conversion device 400 in this embodiment needs to move in synchronization with the spectroscopic device 200.
  • the laser light emitted from the first section R passes through the filtering of the first sub-region 211 along the same optical path as the second light
  • the first light emitted from the second sub-region 212 is incident on the second section G.
  • the laser light emitted from the second section G passes through the second sub-region 212 after being filtered and exits along the same optical path as the second light.
  • the first section R and the second section G are respectively located on the first optical path, so that the first section R and The second section G can be illuminated by the first light.
  • the second region 220 of the spectroscopic device 200 is located on the optical path of the excitation light, the non-converted area B rotates to the first optical path.
  • the non-converted area B is not used to emit light, and a colorless phosphor can be provided to improve the wavelength conversion device 400 The uniformity of the weight distribution, so as to ensure that the wavelength conversion device 400 can maintain balance when periodically rotating.
  • the wavelength conversion device 400 and the spectroscopic device 200 both periodically rotate, the wavelength conversion device 400 and the spectroscopic device 200 both have a disc shape, wherein the first sub-region 211, the second sub-region 212, and the second region 220
  • the center angles occupied by the surface of the spectroscopic device 200 are the same as the center angles occupied by the first section R, the second section G, and the non-conversion region B on the surface of the wavelength conversion device 400, respectively.
  • the light source system 10 further includes a light combining device 800 and a uniform light device 900.
  • the light combining device 800 is used to filter the received laser light and the second light emitted by the beam splitter 200, and guide the light emitted by the beam splitter 200 The received laser light and the second light are emitted to the uniform light device 900 along the same optical path.
  • the spectroscopic device 200 emits the filtered laser light of different colors and the second light transmitted along the second optical path in time series.
  • the laser light emitted by the spectroscopic device 200 is red fluorescence and green fluorescence after color correction.
  • the light is a blue laser, and the light combining device 800 may be a blue-yellow dichroic mirror.
  • FIG. 5 is a light transmittance curve of the light combining device 800 shown in FIG. 1.
  • the light combining device 800 is a band-blocking filter, that is, the light combining device 800 prevents light in the wavelength range of 560-600 nm from passing, thereby obtaining a pure red light With green light as the primary color light, and the blue laser itself has higher color purity, there is no need to filter and repair color.
  • the light combining device 800 may be provided to filter the incident blue fluorescence to obtain blue primary light with high color purity.
  • the light source system 10 further includes some necessary optical guide elements, such as relay lenses 501, 502, 503, 504, and a mirror 600. It can be understood that the light source system 10 can also add or delete specific guides For components, the specific positions of the above optical components can also be flexibly set as required.
  • a beam splitter 200 is used to guide part of the excitation light to the first optical path for wavelength conversion to obtain the received laser light, and another part of the excitation light is guided to the second optical path to obtain the second light. After receiving the light, the received laser light and the second light are guided along the same optical path after being guided by the light combining device 800 to obtain the light source light emitted by the light source system 10.
  • the light source system 10 avoids the use of regional diaphragms, so that the angular distribution of the transmitted light beam in the light source system 10 is continuous, and no yellow spots will appear in the far-field spot, which is helpful to improve the uniformity of the light emitted by the light source system 10 and the display device. And it is beneficial to improve the light efficiency and reliability of the light source system 10.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)

Abstract

一种光源系统（10）及显示设备，光源系统（10）包括：激发光源（100），用于发出激发光；分光装置（200），时序地将激发光分为沿第一光路传输的第一光以及沿第二光路传输的第二光，并将波长转换装置（400）转换后得到的受激光进行滤光，滤光后的受激光与第二光沿同一光路出射；以及波长转换装置（400），设置于第一光路上，用于对至少部分第一光进行波长转换得到受激光；受激光经过分光装置（200）的滤光后，与沿第二光路传输的第二光沿同一光路出射。光源系统（10）中，避免使用了区域膜片，从而光源系统（10）中传输光束的角度分布是连续的，不会在远场光斑中出现黄斑，有利于提高光源系统（10）及显示设备出射光线的均匀性。

Description

光源系统及显示设备 技术领域
本发明涉及光源技术领域，尤其涉及一种光源系统及显示设备。
背景技术
本部分旨在为权利要求书中陈述的本发明的具体实施方式提供背景或上下文。此处的描述不因为包括在本部分中就承认是现有技术。
目前，在光源中为了把激光蓝光和基色蓝光分开，通常是利用光学扩展量使用区域膜片将二者分开，但是这种设计会有一个技术难点就是区域大小的设计。如果区域设计过大就会导致远场光斑中出现黄斑，影响投影画面的均匀，另外，区域过大会导致反射回来的基色蓝光效率低，影响整个光源的光学效率；如果区域设计过小会导致前面的光学系统设计复杂，还会导致区域位置光能量密度过大，很容易烧坏区域膜片，影响整个光源的可靠性。
发明内容
有鉴于此，本发明提供一种避免使用区域膜片的光源系统，可以有效提高显示画面的均匀性以及光源系统的光效，本发明还提供一种包括所述光源系统的显示设备。
一种光源系统，包括：
激发光源，用于发出激发光；
分光装置，时序地将所述激发光分为沿第一光路传输的第一光以及沿第二光路传输的第二光，并将波长转换装置转换后得到的受激光进行滤光，滤光后的受激光与所述第二光沿同一光路出射；以及
波长转换装置，设置于所述第一光路上，用于对至少部分第一光进行波长转换得到所述受激光，并将所述受激光出射至所述分光装置。
一种显示设备，包括如上所述的光源系统。
本发明提供的光源系统中，避免使用了区域膜片，从而所述光源系统中传输光束的角度分布是连续的，不会在远场光斑中出现黄斑，有利于提高所述光源系统及显示设备出射光线的均匀性，并且有利于提高所述光源系统的光效及可靠性。
附图说明
为了更清楚地说明本发明实施例/方式技术方案，下面将对实施例/方式描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例/方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明提供的光源系统的结构示意图。
图2为图1所示的分光装置的俯视结构示意图。
图3为图1所示的波长转换装置在一实施方式中的俯视结构示意图。
图4为图1所示的波长转换装置在另一实施方式中的俯视结构示意图。
图5为图1所示的合光装置的光线通过率曲线。
主要元件符号说明
光源系统 10
激发光源 100
分光装置 200
驱动装置 201、401
第一区域 210
第一子区域 211
第二子区域 212
第二区域 220
波长转换装置 400
转换区 410
第一区段 R
第二区段 G
非转换区 B
中继透镜 501、502、503、504
反射镜 600
合光装置 800
匀光装置 900
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施例对本发明进行详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。
请参阅图1，为本发明提供的光源系统10的结构示意图。本发明提供的光源系统10能够应用于工程机光源、教育投影机、激光电视、微型投影仪等显示设备中。
光源系统10包括激发光源100、分光装置200及波长转换装置400。其中，激发光源100用于发出激发光；分光装置200用于时序地将激发光分为沿第一光路传输的第一光以及沿第二光路传输的第二光，其中，第一光用于沿第一光路传输并入射至波长转换装置400以 产生与激发光颜色不同的受激光，第二光用于沿第二光路传输后自光源系统10出射作为光源系统10的基色光。波长转换装置400用于对沿第一光路传播的至少部分第一光进行波长转换得到受激光，并将受激光出射至分光装置200，分光装置200用于接收波长转换装置400出射的受激光并对受激光进行滤光，分光装置200出射的滤光后的受激光与沿第二光路传输的第二光经过其他光学元件的引导后沿同一光路出射。
本发明提供的光源系统10中利用分光装置200将一部分激发光引导至第一光路进行波长转换得到受激光，并将另一部分激发光引导至第二光路得到第二光，分光装置200出射的滤光后的受激光与第二光路上的第二光经过其他光学元件引导后沿同一光路出射，得到光源系统10出射的光源光。光源系统10中避免使用了区域膜片，从而有利于光源系统10中传输的光束呈连续的角度分布，避免在远场光斑中出现黄斑，有利于提高光源系统10及显示设备出射光线的均匀性，并且有利于提高光源系统10的光效及可靠性。另外，光源系统10中的分光装置200还用于对受激光进行滤光，有利于提高光源系统10出光纯度，从而扩展光源系统10的色域范围。
具体地，激发光源100为蓝色光源，用于发出蓝色光作为激发光。可以理解的是，激发光源100还可以是其他短波长光源，比如紫外光源。本发明中，激发光源100是激光器或激光器阵列，具体其激光器的数量可以根据实际需要进行选择。在一种实施方式中，激发光源100还可以是发光二级管或者灯泡光源等等。
请参阅图2，为图1所示的分光装置200的俯视结构示意图。分光装置200表面包括第一区域210及第二区域220，第一区域210用于反射激发光并对波长转换装置400产生的受激光进行滤光，第二区域220用于透射激发光。进一步地，第一光是由分光装置200反射激发光得到，第二光是由分光装置200透射激发光得到。可以理解的是，在变更实施方式中，第一光是由分光装置200透射激发光得到，第二光是由分光装置200反射激发光得到。
进一步地，第一区域210包括均用于反射第一光的第一子区域211 与第二子区域212，其中，第一子区域211及第二子区域212还分别用于对不同颜色光进行滤光。本实施方式中，第一子区域211、第二子区域212及第二区域220之间相邻设置；在另一种实施方式中，第一子区域211、第二子区域212及第二区域220之间设置有间隔。
激发光为蓝色光，第二区域220可以是镂空区域、增透膜或者是能够透射蓝光的滤光片。为减弱或消除激发光中的激光的相干性，第二区域220可以是透射式散射膜片。在一种实施方式中，激发光为紫外光，第二区域220设置有波长转换材料，以将激发光转换为一种颜色基色光并将其透射至第二光路，比如设置蓝色荧光粉以在紫外激发光的激发下产生蓝色荧光作为第二光。
在本发明中，光源系统10周期性出射红绿蓝三基色光，相应地，第一子区域211与第二子区域212分别用于在反射蓝色光的基础上透射红色光与绿色光，在一种实施方式中，第一子区域211与第二子区域212均用于反射蓝色光透射黄色光。可以理解的是，第一子区域211与第二子区域212分别用于对入射的受激光中的不同颜色光进行修色，比如第一子区域211用于对受激光中的红色荧光进行滤光修色，第二子区域212用于对受激光中的绿色荧光进行滤光修色，有利于提高分光装置200出射的基色光纯度。在一种实施方式中，分光装置200包括用于对多于两种颜色光进行滤光的多个子区域，以产生光源系统10的四基色光、五基色光或更多基色光。
光源系统10还包括驱动装置201，分光装置200在驱动装置201的带动下周期性转动，第一区域210及第二区域220用于交替接收激发光，进一步地，第一子区域211、第二子区域212及第二区域220用于交替接收激发光，分光装置200时序出射第二光及修色后的红色荧光与修色后的绿色荧光。
在一种实施方式中，分光装置200呈条状，分光装置200表面线性设置第一子区域211、第二子区域212及第二区域220，分光装置200在驱动装置201的带动下做周期往复运动，使得第一子区域211、第二子区域212及第二区域220周期性接收激发光。
请参阅图3，为图1所示的波长转换装置400在第一实施方式中 的俯视结构示意图。波长转换装置400包括转换区410，转换区410用于接收第一光并将第一光转换为其他颜色的受激光，转换区410设置有一种波长转换材料，比如黄色荧光粉，用于接收激发光并出射黄色受激光。本实施方式中，波长转换装置400为转动式的色轮，在驱动装置401(见图1)的带动下周期性转动，以缓解波长转换装置400的局部高温状况，有利于提高波长转换装置400的转换效率。在一种实施方式中，波长转换装置400为固定式的荧光片。
请参阅图4，为图1所示的波长转换装置400在另一实施方式中的俯视结构示意图。波长转换装置400包括转换区410，转换区410包括第一区段R与第二区段G，其中，第一区段R用于将第一光转换为第一种颜色的受激光，第二区段G用于将第一光转换为第二种颜色的受激光，第一区段R与第二区段G周期性位于第一光的光路上。具体地，第一区段R与第二区段G分别设置有不同的波长转换材料，比如第一区段R设置有红色荧光粉以在蓝色第一光的激发下产生红色荧光作为受激光，第二区段G设置有绿色荧光粉，以在蓝色第一光的激发下产生绿色荧光作为受激光。波长转换装置400还包括非转换区B，第一区段R、第二区段G及非转换区B周期性位于第一光的光路上，即第一光路上。本实施方式中，波长转换装置400还用于将产生的受激光引导至分光装置200，比如将受激光反射至分光装置200，在变更实施方式中，波长转换装置400还用于将产生的受激光透射至分光装置200。
本实施方式中的波长转换装置400需要与分光装置200同步运动。以保证分光装置200中第一子区域211出射的第一光入射至第一区段R，第一区段R出射的受激光经过第一子区域211的滤光后与第二光沿同一光路出射；第二子区域212出射的第一光入射至第二区段G，第二区段G出射的受激光经过第二子区域212的滤光后与第二光沿同一光路出射。换句话说，当第一子区域211与第二子区域212分别位于激发光的光路上时，第一区段R与第二区段G分别位于第一光路上，使得第一区段R与第二区段G能够被第一光照射。当分光装置200的第二区域220位于激发光的光路上时，非转换区B旋转至第一光路上， 非转换区B不用于出射光线，可以设置无色荧光粉，以提高波长转换装置400重量分布的均匀性，从而保证波长转换装置400在周期性转动时能够保持平衡。
在波长转换装置400与分光装置200均周期性转动的实施方式中，波长转换装置400与分光装置200均呈圆盘状，其中，第一子区域211、第二子区域212及第二区域220在分光装置200表面占有的圆心角分别与第一区段R、第二区段G及非转换区B在波长转换装置400表面占有的圆心角相同。
请再参阅图1，光源系统10还包括合光装置800及匀光装置900，合光装置800用于对分光装置200出射的受激光与第二光进行滤光，并引导分光装置200出射的受激光与第二光沿同一光路出射至匀光装置900。
分光装置200时序出射滤光后的不同颜色受激光及沿第二光路传输的第二光，在本实施方式中，分光装置200出射的受激光为修色后的红色荧光与绿色荧光，第二光为蓝色激光，合光装置800可以是反蓝透黄二向色镜。
请参阅图5，为图1所示的合光装置800的光线通过率曲线。在一种优选的实施方式中，如图5所示，合光装置800为带阻滤光片，即合光装置800阻止波长范围在560-600nm的光线通过，从而得到颜色比较纯正的红光与绿光作为基色光，而蓝色激光本身颜色纯度较高，不需要再进行滤光修色了。在第二光为蓝色荧光的实施方式中，可以设置合光装置800对入射的蓝色荧光进行滤光，以得到颜色纯度较高的蓝色基色光。
如图1所示，光源系统10还包括一些必要的光学引导元件，比如中继透镜501、502、503、504及反射镜600，可以理解的是，光源系统10还可以增加或删除特定的引导元件，也可以根据需要灵活设置上述光学元件的具体位置。
本发明提供的光源系统10中利用分光装置200将一部分激发光引导至第一光路进行波长转换得到受激光，并将另一部分激发光引导至第二光路得到第二光，分光装置200出射的滤光后的受激光与第二光 经过合光装置800的引导后沿同一光路出射，得到光源系统10出射的光源光。光源系统10中避免使用了区域膜片，从而光源系统10中传输光束的角度分布是连续的，不会在远场光斑中出现黄斑，有利于提高光源系统10及显示设备出射光线的均匀性，并且有利于提高光源系统10的光效及可靠性。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化涵括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。此外，显然“包括”一词不排除其他单元或步骤，单数不排除复数。装置权利要求中陈述的多个装置也可以由同一个装置或系统通过软件或者硬件来实现。第一，第二等词语用来表示名称，而并不表示任何特定的顺序。
最后应说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或等同替换，而不脱离本发明技术方案的精神和范围。

Claims (10)

  1. 一种光源系统，其特征在于，包括：
    激发光源，用于发出激发光；
    分光装置，时序地将所述激发光分为沿第一光路传输的第一光以及沿第二光路传输的第二光，并将波长转换装置转换后得到的受激光进行滤光，滤光后的受激光与所述第二光沿同一光路出射；以及
    波长转换装置，设置于所述第一光路上，用于对至少部分第一光进行波长转换得到所述受激光，并将所述受激光出射至所述分光装置。
  2. 如权利要求1所述的光源系统，其特征在于，所述分光装置表面包括第一区域及第二区域，所述第一区域用于反射所述激发光并对所述受激光进行滤光，所述第二区域用于透射所述激发光，所述光源系统还包括驱动装置，所述分光装置在所述驱动装置的驱动下周期性转动，使所述第一区域及所述第二区域交替接收所述激发光。
  3. 如权利要求2所述的光源系统，其特征在于，所述第一区域包括均用于反射所述第一光的第一子区域与第二子区域，所述第一子区域及所述第二子区域还分别用于对不同颜色的光进行滤光，在所述驱动装置的驱动下，所述第一子区域及所述第二子区域交替接收所述激发光。
  4. 如权利要求3所述的光源系统，其特征在于，所述波长转换装置包括转换区，所述转换区用于接收所述激发光并出射包括一种颜色光的受激光。
  5. 如权利要求3所述的光源系统，其特征在于，所述波长转换装置包括转换区，所述转换区包括第一区段与第二区段，所述第一区段用于将所述第一光转换为第一种颜色的受激光，所述第二区段用于将所述第一光转换为第二种颜色的受激光，所述第一区段与所述第二区段周期性位于所述第一光的光路上，所述分光装置的第一子区域出射的第一光入射至所述第一区段，所述第一区段出射的受激光经过所述第一子区域的滤光后与所述第二光沿同一光路出射；所述分光装置的第二子区域出射的第二光入射至所述第二区段，所述第二区段出射的 受激光经过所述第二子区域的滤光后与所述第二光沿同一光路出射。
  6. 如权利要求2所述的光源系统，其特征在于，所述第二区域设置有透射式散射片。
  7. 如权利要求1-6任意一项所述的光源系统，其特征在于，还包括合光装置，所述合光装置用于对所述分光装置出射的受激光与第二光进行滤光，并引导所述分光装置出射的受激光与第二光沿同一光路出射。
  8. 如权利要求7所述的光源系统，其特征在于，所述合光装置为带阻滤光片。
  9. 如权利要求7所述的光源系统，其特征在于，所述激发光为蓝色光，所述合光装置出射的受激光包括红色光与绿色光。
  10. 一种显示设备，其特征在于，包括如权利要求1-9任意一项所述的光源系统。
PCT/CN2019/119153 2018-12-12 2019-11-18 光源系统及显示设备 Ceased WO2020119398A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811521191.0A CN111308842A (zh) 2018-12-12 2018-12-12 光源系统及显示设备
CN201811521191.0 2018-12-12

Publications (1)

Publication Number Publication Date
WO2020119398A1 true WO2020119398A1 (zh) 2020-06-18

Family

ID=71076192

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/119153 Ceased WO2020119398A1 (zh) 2018-12-12 2019-11-18 光源系统及显示设备

Country Status (2)

Country Link
CN (1) CN111308842A (zh)
WO (1) WO2020119398A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116149122A (zh) * 2021-11-19 2023-05-23 苏州佳世达光电有限公司 光源模组

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115793368A (zh) * 2022-11-25 2023-03-14 赵隽 照明装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103424971A (zh) * 2012-05-16 2013-12-04 深圳市绎立锐光科技开发有限公司 光源系统及相关投影系统
CN205353549U (zh) * 2016-01-07 2016-06-29 深圳市绎立锐光科技开发有限公司 一种光源装置及照明装置
CN107621744A (zh) * 2016-07-13 2018-01-23 深圳市光峰光电技术有限公司 光源及投影仪
US9942528B2 (en) * 2016-02-12 2018-04-10 Seiko Epson Corporation Wavelength conversion element, illumination device, and projector
CN108303838A (zh) * 2016-09-27 2018-07-20 中航国画（上海）激光显示科技有限公司 一种蓝光光源全光纤传输激光投影机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6171345B2 (ja) * 2012-09-10 2017-08-02 株式会社リコー 照明光源装置及びこの照明光源装置を備えた投射装置及び投射装置の制御方法
JP6268745B2 (ja) * 2012-09-18 2018-01-31 株式会社リコー 照明装置、投射装置および照明方法
CN104345530B (zh) * 2013-07-30 2016-02-10 台达电子工业股份有限公司 显示光源模块
CN108153089B (zh) * 2016-12-02 2020-08-28 中强光电股份有限公司 照明系统及使用其的投影装置
CN108535943B (zh) * 2017-03-03 2021-07-06 深圳光峰科技股份有限公司 一种光源装置及其投影显示系统
CN208188567U (zh) * 2018-05-17 2018-12-04 中强光电股份有限公司 照明系统及投影装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103424971A (zh) * 2012-05-16 2013-12-04 深圳市绎立锐光科技开发有限公司 光源系统及相关投影系统
CN205353549U (zh) * 2016-01-07 2016-06-29 深圳市绎立锐光科技开发有限公司 一种光源装置及照明装置
US9942528B2 (en) * 2016-02-12 2018-04-10 Seiko Epson Corporation Wavelength conversion element, illumination device, and projector
CN107621744A (zh) * 2016-07-13 2018-01-23 深圳市光峰光电技术有限公司 光源及投影仪
CN108303838A (zh) * 2016-09-27 2018-07-20 中航国画（上海）激光显示科技有限公司 一种蓝光光源全光纤传输激光投影机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116149122A (zh) * 2021-11-19 2023-05-23 苏州佳世达光电有限公司 光源模组

Also Published As

Publication number Publication date
CN111308842A (zh) 2020-06-19

Similar Documents

Publication Publication Date Title
JP7501719B2 (ja) 光源光学系、光源装置及び画像投射装置
US10459324B2 (en) Light source device and projection display device
US11774843B2 (en) Light source system and display device
CN110955104B (zh) 光源系统及投影系统
JP7567403B2 (ja) 光源装置、画像投射装置および光源光学系
WO2018209723A1 (zh) 一种投影照明光路及其投影装置
TW201932969A (zh) 照明系統與投影裝置
JP2003233123A (ja) プロジェクタ装置
CN104516181B (zh) 一种照明系统、投影机以及背投影系统
JPH08211207A (ja) プリズム装置および液晶プロジェクション装置
CN111381425B (zh) 光源系统及投影装置
WO2021143438A1 (zh) 波长转换装置、光源装置及投影系统
WO2020048123A1 (zh) 光源系统、提高其光效的方法及显示设备
WO2020259615A1 (zh) 一种光源系统及显示设备
WO2020119398A1 (zh) 光源系统及显示设备
CN207541401U (zh) 一种微型激光投影装置
WO2020125301A1 (zh) 光源系统及其控制方法与显示设备及其控制方法
TWI731105B (zh) 光源結構及投影系統
CN113805415B (zh) 投影装置
US11917338B2 (en) Light source system and display apparatus
US20120281186A1 (en) Laser projection system
EP3660387A1 (en) Light source device and stage lamp illumination system using the same
CN111856862A (zh) 光源系统及显示设备
CN111856858B (zh) 一种光源系统及投影系统
KR20110132872A (ko) 프로젝션 시스템

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19897043

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19897043

Country of ref document: EP

Kind code of ref document: A1