WO2018214288A1 - Système de source de lumière et dispositif d'affichage - Google Patents

Système de source de lumière et dispositif d'affichage Download PDF

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Publication number
WO2018214288A1
WO2018214288A1 PCT/CN2017/096513 CN2017096513W WO2018214288A1 WO 2018214288 A1 WO2018214288 A1 WO 2018214288A1 CN 2017096513 W CN2017096513 W CN 2017096513W WO 2018214288 A1 WO2018214288 A1 WO 2018214288A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
source system
segment
laser
Prior art date
Application number
PCT/CN2017/096513
Other languages
English (en)
Chinese (zh)
Inventor
胡飞
侯海雄
李屹
Original Assignee
深圳市光峰光电技术有限公司
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Publication of WO2018214288A1 publication Critical patent/WO2018214288A1/fr

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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
    • G03B21/2066—Reflectors in illumination beam
    • 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 a light source system and a display device.
  • 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 first 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.
  • a light source system comprising a first light source, a wavelength conversion device and a guiding device; the first light source for emitting excitation light; the wavelength conversion device comprising a first segment and a second segment, the first region a segment and a second segment are time-series on an optical path of the excitation light; the first segment is configured to receive the excitation light and generate a laser light, and reflect the laser light along the first light path; a second segment for reflecting the excitation light along a second optical path that does not coincide with the first optical path; the guiding device is configured to direct the excitation light reflected by the laser and/or the second segment to the light output aisle.
  • a display device comprising a light source system, the light source system comprising a first light source, a wavelength conversion device and a guiding device; the first light source for emitting excitation light; the wavelength conversion device comprising a first segment And a second segment, the first segment and the second segment are time-series on an optical path of the excitation light; the first segment is configured to receive the excitation light and generate a laser, and the Reflected by the laser along the first optical path; the second segment is for reflecting the excitation light along a second optical path that does not coincide with the first optical path; the guiding device is configured to guide the laser and/or the laser The excitation light reflected by the second section is to the light exit channel.
  • the wavelength conversion device of the present invention is advantageous for separating the excitation light from the optical path of the laser-receiving light, so that the laser-receiving light and the excitation light are respectively guided from the non-coincident optical path to the
  • the components of the light source system using the wavelength conversion device can be compact and small, and are more suitable for use in the field of micro-injection.
  • FIG. 1 and 2 are schematic views showing the structure of a light source system according to a first embodiment of the present invention.
  • FIG. 3 is a schematic plan view showing the structure of a wavelength conversion device of the light source system shown in FIG. 1.
  • Figure 4 is a schematic cross-sectional view of Figure 3 taken along line IV-IV.
  • 5 and 6 are schematic views showing the structure of a light source system according to a second embodiment of the present invention.
  • FIG. 7 and 8 are schematic views showing the structure of a light source system according to a third embodiment of the present invention.
  • Fig. 9 is a view showing the blocking characteristics of the band-stop filter element shown in Fig. 7.
  • FIGS. 10 and 11 are schematic views showing the structure of a light source system according to a fourth embodiment of the present invention.
  • Fig. 12 is a plan view showing the planar structure of the light combining and combining element shown in Fig. 10.
  • FIG. 13 and 14 are schematic views showing the configuration of a light source system according to a fifth embodiment of the present invention.
  • 15 and 16 are schematic views showing the configuration of a light source system according to a sixth embodiment of the present invention.
  • 17 and 18 are schematic views showing the configuration of a light source system according to a seventh embodiment of the present invention.
  • 19 and 20 are schematic views showing the configuration of a light source system according to an eighth embodiment of the present invention.
  • 21 and 22 are views showing the configuration of a light source system according to a ninth embodiment of the present invention.
  • 23 and 24 are schematic views showing the configuration of a light source system according to a tenth embodiment of the present invention.
  • Fig. 25 is a plan view showing the structure of a wavelength conversion device of the light source system shown in Fig. 23.
  • Figure 26 is a plan view showing the structure of an embodiment of the wavelength conversion device of the present invention.
  • Figure 27 is a cross-sectional view of Figure 26.
  • Figure 28 is a side elevational view showing still another embodiment of the wavelength conversion device of the present invention.
  • Figure 29 is a side elevational view showing another embodiment of the wavelength conversion device of the present invention.
  • Figure 30 is a side elevational view showing another embodiment of the wavelength conversion device of the present invention.
  • Figure 31 is a side view showing the structure of another embodiment of the wavelength conversion device of the present invention.
  • FIG. 32 is a block schematic diagram of a display device in accordance with a preferred embodiment of the present invention.
  • FIG. 1 and FIG. 2 are schematic diagrams showing the structure of a light source system 100 according to a first embodiment of the present invention.
  • FIG. 1 and FIG. 2 are also schematic diagrams of light paths of the light source system 100 at two different time periods.
  • the light source system 100 includes a first light source 110, a beam splitting light element 120, a wavelength conversion device 130, a guiding device 140, a light homogenizing device 150, a collimating lens 101, collecting lenses 103, 104, and a relay lens 106.
  • the first light source 110 is used to emit excitation light, which may be a semiconductor diode or a semiconductor diode array such as a laser diode (LD) or a light emitting diode (LED).
  • the excitation light may be blue light, purple light or ultraviolet light, etc., but is not limited to the above.
  • the first light source 110 includes a blue semiconductor laser diode for emitting blue laser light as the excitation light.
  • the brightness of the light source emitted by the light source system 100 using one laser light source and combined with the light combining and combining element 120, the wavelength conversion device 130, the guiding device 140, etc. can reach three or more lasers in the prior art. The brightness achieved by the light source.
  • the battery can be used to supply power to devices such as light sources and motors.
  • the use of a battery to power the light source system 100 allows the projection device employing the light source system 100 to be easily carried and can be used in any situation.
  • the collimating lens 101 is located on the optical path where the excitation light emitted by the first light source 110 is located. Specifically, the collimating lens 101 may be disposed between the first light source 110 and the beam splitting component 120. And for aligning the excitation light emitted by the first light source 110 and providing the collimated excitation light to the beam splitting light element 120. It can be understood that, in the modified embodiment, the collimator lens 101 can also be omitted, so that the excitation light emitted by the first light source 110 is directly supplied to the beam splitting light element 120.
  • the light splitting light element 120 can also be disposed on the optical path where the excitation light emitted by the first light source 110 is located, for receiving the excitation light emitted by the first light source 110 and reflecting the excitation light to the wavelength.
  • the conversion device 130 is configured to cause the wavelength conversion device 130 to convert a portion of the excitation light into a laser received light and to direct another portion of the excitation light to the guiding device 140, the spectral light combining element 120 also being configured to receive the wavelength conversion device
  • the received laser light emitted from 130 is transmitted to the light exiting passage 108, and the guiding device 140 is guided to the other portion of the light splitting and light emitting element 120 adjacent to the light exiting passage 108 to be reflected to the light exiting passage 108.
  • the spectroscopic light combining element 120 can receive the excitation light emitted by the first light source 110 via the collimating lens 101.
  • the beam splitting light element 120 includes a first surface 121 and a second surface 122 disposed opposite the first surface 121, wherein the first surface is adjacent to the first light source 110 and the A surface on one side of the wavelength conversion device 130, the second surface 122 being a surface adjacent to one side of the light exit channel 108.
  • the first surface 121 receives and reflects the excitation light emitted by the first light source 110, and the first surface 121 further receives the laser light emitted by the wavelength conversion device 130 such that the laser light is transmitted to the light exit channel. 108.
  • the second surface 122 receives the other portion of the excitation light directed by the guiding device 140 and reflects the other portion of the excitation light to the light exit channel 108. It can be understood that the light emitted by the second surface 122 of the light combining and combining element 120 (ie, the light of the light exiting channel 108) is the combined light of the laser light and the other portion of the excitation light.
  • the spectroscopic light combining element 120 reflects the excitation light and transmits the laser light.
  • the light combining and combining light element 120 can reflect light having a wavelength smaller than a first preset value and Transmitting light having a wavelength greater than the first predetermined value, wherein the first predetermined value may be between 480 nanometers and 485 nanometers.
  • the beam splitting light element 120 may be a film that reflects blue light and transmits red light, transmits green light, and transmits yellow light, which may be converted with respect to the light emitting surface of the first light source 110 and the wavelength.
  • the light-emitting surfaces of the laser light of the device 130 are inclined at an angle of 45 degrees, and the maximum wavelength of the blue light reflected by the light-collecting and combining elements 120 may be between 480 nanometers and 485 nanometers.
  • the wavelength conversion device 130 is located on the optical path of the excitation light reflected by the light combining and combining light element 120, and is configured to receive the excitation light reflected by the light combining and combining light element 120, and convert a part of the excitation light into a laser beam.
  • the wavelength conversion device 130 is also used to reflect another portion of the excitation light.
  • the wavelength conversion device 130 may receive the excitation light via the collection lenses 103 and 104, and provide the laser light that is converted by a part of the excitation light through the collection lenses 103 and 104 to be collimated and provided to
  • the light splitting light element 120 and one of the guiding means 140 and the other part of the excitation light are reflected to the other of the beam splitting light element 120 and the guiding means 140.
  • the wavelength conversion device 130 is a reflective wavelength conversion device, such as a reflective color wheel, which has the advantage of sufficient heat dissipation space.
  • a heat dissipation component may be disposed on the other surface of the wavelength conversion device 130 (ie, the surface opposite to the light exit surface of the wavelength conversion device 130).
  • heat dissipating blades are disposed on the other surface of the wavelength conversion device 130, and the heat dissipating blades may be in the shape of a circular ring, a columnar protrusion, a sheet-like protrusion or the like distributed along the circumference.
  • FIG. 3 is a schematic plan view of a plane structure of the wavelength conversion device 130 adjacent to the light splitting and light combining element 120
  • FIG. 4 is a cross-sectional structural view of FIG. 3 along line III-III.
  • the light emitting surface 133a of the wavelength conversion device 130 includes a first section 131 and a second section 132.
  • the first section 131 and the second section 132 are sequentially arranged in a circumferential direction.
  • the first segment 131 and the second segment 132 are time-series on the optical path where the excitation light reflected by the beam splitting light element 120 is located; the first segment 131 is configured to receive the excitation light and generate a laser beam.
  • the second section 132 is for reflecting the excitation light along a second optical path that does not coincide with the first optical path.
  • One of the laser light generated by the first section 131 and the excitation light reflected by the second section 132 is guided to the beam splitting light element 120 via the guiding device 140, the first Another one of the laser light generated by one section 131 and the excitation light reflected by the second section 132 is directed to the beam splitting light element 120, which uses a wavelength combining method
  • the laser light generated by the first section 131 and the excitation light reflected by the second section 132 are combined.
  • the first segment 131 receives the excitation light emitted by the spectroscopic light combining element 120 in a first time period, and generates the laser light and reflects the received laser light to the light combining and combining light element 120.
  • the first section 131 includes a first reflective area 131c for generating the laser light
  • the second section 132 includes a second reflective area 132b for reflecting excitation light, the second reflective area 132b being opposite
  • the first reflective area 131a is obliquely disposed.
  • the wavelength conversion device 130 includes a base 133 including a first surface 133a, a second surface 133b opposite to the first surface 133a, and the first surface 133a and the first surface
  • the side surface 133c between the two surfaces 133b, and the inclined surface 133d, the first surface 133a and the second surface 133b are parallel to each other, and the side surface 133c is perpendicular to the first surface 133a and the second surface 133b.
  • the base body 133 is divided into the first section 131 and the second section 132 which are sequentially disposed in the circumferential direction along a direction perpendicular to the first surface 133a, and the first surface 133a includes a corresponding first
  • the first portion 133e of the segment 131 and the second portion 133f corresponding to the second segment 132, the inclined surface 133d is disposed obliquely with respect to the first surface 133a (e.g., obliquely disposed at an angle of 45 degrees).
  • the inclined surface 133d generates the laser light as the first reflective region 131c and the second portion 133f reflects the excitation light as the second reflective region 132b; or, in a modified embodiment, The first portion 133e generates the laser light as the first reflection region 131c and the inclined surface 133d reflects the excitation light as the second reflection region 132b.
  • the side surface 133c includes a first side surface 1331 corresponding to the first section 131 and a second side surface 1332 corresponding to the second section 132.
  • the inclined surface 133d is connected to the first side.
  • Between the second portion 133f of the surface 133a and the second side surface 1332, and the inclined surface 133d and the second portion 133f and the second side surface 1332 of the first surface 133a are both obtuse angles (eg, 135 degrees) Obtuse angle).
  • the side surface 133c corresponds to the first section 131
  • the inclined surface 133d corresponds to the second section 132 and is connected to the second portion 133e and the first surface 133a.
  • the inclined surface 133d is at an obtuse angle (such as an obtuse angle of 135 degrees) with the second portion 133e of the first surface 133a, and the inclined surface 133d is at an acute angle with the second surface 133b (such as an acute angle of 45 degrees).
  • the number of the first segments 131 may be one, two or more, and may be determined according to actual needs. In this embodiment, the number of the first segments 131 may be two, respectively.
  • the first segmented region 131a is provided with a first fluorescent material and is used to emit a laser of a first color
  • the second segmented region 131b is provided with a second fluorescent material and is used to emit a laser of a second color
  • the received laser light emitted by the wavelength conversion device 130 includes the received laser light of the first color and the received laser light of the second color.
  • the excitation light is blue excitation light
  • the first fluorescent material is red fluorescent material
  • the first color is red
  • the second fluorescent material is green fluorescent material
  • the second color is It is green.
  • the second section 132 receives the excitation light emitted by the beam splitting light element 120 for a second period of time and reflects the excitation light to the guiding device 140.
  • the second section 132 further includes a vacant area 132a.
  • the vacant area 132a is defined by the second portion 133f of the first surface 133a, and therefore, the vacant area 132a is
  • the first section 131 is located on the same plane, the second reflection area 132b is located outside the vacant area 132a, and the second reflection area 132b is obliquely connected to the surface of the vacant area 132a at an obtuse angle, so the first
  • the two reflective regions 132b are also disposed at an obtuse angle with respect to the first segment 131, wherein the obtuse angle may be 135 degrees, 140 degrees, 150 degrees, or the like.
  • the vacant area 132a and the second reflective area 132b may be integrally formed.
  • the vacant area 132a and the second reflective area 132b are all made of a ceramic substrate or a glass substrate, or made of other materials, and then A reflective film is plated or attached to the second reflective region 132b.
  • the surface of the second section 132 for reflecting the excitation light ie, the surface of the reflective area 132 is further plated with a diffusing film for decohering while reflecting the excitation light.
  • the wavelength conversion device 130 may periodically rotate along its center such that the first segment 131 (including the first segment region 131a and the second segment region 131b), the first The second reflective region 132b of the two segments 132 is time-divisionally and periodically located on the optical path where the excitation light reflected by the optical splitting light element 120 is located, so that the first segment 131 and the second reflective region 132b are periodically. Converting the excitation light into the laser light or reflecting the excitation light to the guiding device 140, and finally causing the light combining and combining element 120 to periodically emit the laser light and the excitation light, The light source system 100 emits the laser light and the excitation light at a predetermined timing.
  • the wavelength conversion device 130 reflects the blue excitation light by using a sloped surface by the second reflection region 132b, thereby improving the utilization of light, so that the light utilization efficiency of the wavelength conversion device 130 is as high as 95%, at the same time, due to the increase in light utilization efficiency, the wavelength conversion device 130 may reduce the area of the second reflective region 132b that reflects the blue excitation light, and increase the first segment 131 (including the first The area of the segmented area 131a and the second segmented area 131b) may be smaller than the prior art by the same amount of light and light intensity, so that the wavelength conversion device is employed.
  • the light source system of 130 is smaller in size and more compact in structure.
  • the guiding device 140 is configured to guide the laser light generated by the first section 131 and/or the excitation light reflected by the second section 132 to the light exit channel. In this embodiment, the guiding device 140 guides the excitation light reflected by the second section 132 to the light exiting channel. Further, the guiding device 140 further focuses the excitation light reflected by the second segment 132, and scatters the focused excitation light to decoherence, and the scattered excitation light is guided to the The optical coupling element 120 is described.
  • the guiding device 140 guides the (reflected) excitation light provided by the wavelength conversion device 130 to a side of the beam splitting light element 120 adjacent to the light exiting channel 108 (ie, the beam splitting light element 120)
  • the second surface 122 and the beam splitting light element 120, reflects the excitation light to the light exit channel 108.
  • the guiding device 140 includes reflective elements 141a, 141b, and the excitation light reflected by the wavelength conversion device 130 is reflected by the reflective elements 141a, 141b to the optical splitting light element 120 adjacent to the light output A second surface 122 of one side of the channel 108.
  • the guiding device 140 further includes the at least one reflective element and the astigmatism sheet 142, and the astigmatism sheet 142 is configured to scatter and decohere the excitation light guided by the guiding device 140, where the The excitation light reflected by the two segments 132 is guided by the at least one reflective element and the astigmatism sheet 142 to the spectroscopic light combining element 120, and the astigmatism sheet is used to perform excitation light reflected by the second section 132. Scattering decoherence.
  • the reflective element of the guiding device 140 includes a first reflective element 141a and a second reflective element 141b, and the astigmatism sheet 142 is located between the first reflective element 141a and the second reflective element 141b.
  • the first reflective element 141a reflects the excitation light emitted by the wavelength conversion device 130 to the astigmatism sheet 142, and the astigmatism sheet 142 transmits and scatters the excitation light emitted by the first reflective element 141a.
  • the second reflective element 141b reflects the scattered and decoherent excitation light of the diffuser 142 to a side of the optical splitting element 120 adjacent to the light exiting channel 108 The second surface.
  • At least one of the first reflective element 141a and the second reflective element 141b may include a reflective film
  • the guiding device 140 further includes a scattering layer disposed on the reflective film, disposed on the reflective film
  • the scattering particles, or the upper or lower surface of the reflective film, are scattering surfaces such that the guiding device 140 scatters the received light, such as the excitation light reflected by the second segment.
  • the guiding device 140 may further include a first relay lens and a second relay lens.
  • the first relay lens is located between the wavelength conversion device 130 and the first reflective element 141a for collecting, collimating, shaping, and the like of the excitation light emitted by the wavelength conversion device 130.
  • the second relay lens is located between the second reflective element 141b and the beam splitting light element 120 for collecting, collimating, shaping, and the like the excitation light reflected by the first reflective element 141a.
  • the guiding device 140 includes a collecting lens 143, a collimating lens 144 and a collimating lens 145.
  • the collecting lens 143 and the collimating lens 144 are sequentially disposed between the wavelength conversion device 130 and the first reflective element 141a for sequentially collecting the excitation light emitted by the wavelength conversion device 130. And collimating to provide the collected and collimated excitation light to the first reflective element 141a.
  • the collimating lens 145 is disposed between the second reflective element 141b and the beam splitting light element 120 for collimating the excitation light scattered by the astigmatism sheet 142 and reflected by the second reflective element 141b. To provide the collimated excitation light to the spectroscopic light combining element 120.
  • the first surface 121 of the beam splitting light element 120 is opposite to and parallel to the second reflective area 132b of the wavelength conversion device 130, and the second reflective area 132b of the wavelength conversion device 130 can be
  • the reflective surface of the first reflective element 141a is corresponding and perpendicular, and the reflective surface of the first reflective element 141a may correspond to the reflective surface of the second reflective element 141b and be perpendicular to each other, and the astigmatism sheet 142 may be
  • the reflecting surface of the first reflecting element 141a and the reflecting surface of the second reflecting element 141b are both inclined at an angle of 45 degrees, and the reflecting surface of the second reflecting element 141b may be opposite to the second surface of the beam combining unit 120.
  • 122 are parallel to each other.
  • the second surface 122 of the beam splitting light element 120 receives the excitation light reflected by the second reflective element 141b and reflects the excitation light to the light exit channel 108.
  • the light-sharing device 150 may be disposed on a side of the second surface 122 of the light-splitting light-emitting component 120 adjacent to the light-emitting channel 108 for multiplexing the laser light and the excitation light of the light-emitting channel 108 And so on, in order to provide the homogenized laser and excitation light to the subsequent optomechanical module of the projection system for processing and use.
  • the light homogenizing device 150 may be a light-diffusing square rod including an inlet for receiving the laser-receiving light and an exit for receiving the light-receiving laser and excitation light.
  • the light homogenizing device 150 further receives the laser light and the excitation light via the relay lens 106, that is, the laser light and the excitation light emitted by the relay lens 106 to the light separating and combining light element 120. After the processing such as collecting or shaping, the spot of the laser and the excitation light is imaged to the entrance of the light homogenizing device 150 for improving the light utilization efficiency.
  • the beam splitting light element 120 reflects the excitation light to the wavelength conversion device 130, transmits the received laser light to the light exit channel 108, and The excitation light guided by the guiding device 140 is reflected to the light exiting channel 108, so that the components of the light source system 100 are compact, small in volume, and more suitable for use in the micro-injection field.
  • the wavelength conversion device 130 facilitates separating the excitation light from the laser-receiving optical path, such that the spectral light combining element 120 can transmit the received laser light to the light exiting channel, and The excitation light guided by the guiding device 140 is reflected to the light exiting channel 108.
  • the wavelength conversion device 130 also makes the emitted laser light more excellent in color and brighter in brightness, and it is not necessary to provide a color wheel on the exiting light path of the wavelength conversion device 130 to perform color correction on the emitted light.
  • the light source system 100 using the wavelength conversion device 130 has a compact component and a small volume, and is also more suitable for use in the field of micro-injection.
  • the excitation light and the light path of the laser light are separated and guided by the wavelength conversion device 130 and the guiding device 140, so that the light combining and combining device 120 generates the laser light generated by the wavelength conversion device 130.
  • the excitation light guided by the guiding device 140 is combined in a manner of wavelength combining light, so that the laser light and the excitation light supplied to the light exit channel by the light separating and combining light element 120 can be more uniform, compared with some existing passing regions.
  • the light-collecting and light-collecting element which is coated to guide the excitation light can avoid the phenomenon that the color of the region generated by the excitation light is guided by the region coating film to cause unevenness or the like, so that the light-collecting and combining element 120 supplies the excitation light to the light-emitting channel. More even.
  • the brightness of the light source emitted by the light source system using one laser light source and combined with the light combining and combining element 120, the wavelength conversion device 130, the guiding device 140, etc. can reach three or more in the prior art.
  • the brightness achieved by the laser source due to the small number of light sources used, only one laser source can be used, and the battery can be used to supply power to devices such as light sources and motors. Powering the light source system 100 using a battery can make the projection device employing the light source system 100 convenient to carry and use.
  • the wavelength conversion device 130 reflects the blue excitation light by using a sloped surface by using the second reflection region 132b, which not only improves the utilization rate, but also reduces the second reflection of the reflected blue excitation light.
  • the area 132b occupies the area of the entire wavelength conversion device 130, and increases the area of the first section 131.
  • the plane area of the wavelength conversion device 130 can be smaller on the basis of the same amount of light and light intensity as in the prior art.
  • the light source system employing the wavelength conversion device 130 is made smaller in size and more compact in structure.
  • FIG. 5 and FIG. 6 are schematic diagrams showing the structure of a light source system 200 according to a second embodiment of the present invention.
  • FIGS. 5 and 6 are also schematic diagrams of light paths of the light source system 200 at two different time periods.
  • the light source system 200 has substantially the same structure as the light source system 100 of the first embodiment. That is to say, the above description of the light source system 100 can be basically applied to the light source system 200, and the difference between the two is mainly as follows:
  • the light source system 200 further includes a light homogenizing device 202.
  • the light homogenizing device 202 is located between the first light source 210 and the beam splitting light element 220 for averaging the excitation light emitted by the first light source 210.
  • the light homogenizing device 202 may be located between the collimating lens 201 and the beam splitting light element 220, and perform uniform light processing on the excitation light collimated by the collimating lens 201.
  • FIG. 7 and FIG. 8 are schematic diagrams showing the structure of a light source system 300 according to a third embodiment of the present invention, wherein 7 and FIG. 8 are also schematic diagrams of light paths of the light source system 300 at two different time periods.
  • the light source system 300 has substantially the same structure as the light source system 200 of the second embodiment. That is to say, the above description of the light source system 200 can be basically applied to the light source system 300, and the difference between the two is mainly as follows:
  • the first fluorescent material of the first segment region of the light source system 300 is a yellow fluorescent material (the red fluorescent material in the first embodiment and the second embodiment), that is, in the embodiment, the yellow fluorescent material is used instead of the first fluorescent material.
  • the red fluorescent material of the first embodiment and the second embodiment; the light source system 300 further includes a band stop filter element 309 that filters the yellow laser light generated by the wavelength conversion device 330 to filter out The yellow is subjected to a green portion in the laser light, thereby converting the yellow light generated by the yellow fluorescent material into a red laser light.
  • FIG. 9 is a schematic diagram showing the blocking characteristics of the band-stop filter element 309 shown in FIG.
  • the band stop filter element 309 blocks light having a wavelength of 580 nm to 620 nm (i.e., green light generated by the yellow fluorescent material).
  • the band rejection filter element 309 can further filter the green laser generated by the second fluorescent material (such as the green fluorescent material) of the second segment region to remove light having a wavelength of 580 nm to 620 nm, thereby
  • the green color generated by the second fluorescent material (such as a green fluorescent material) is modified by the wavelength tail of the laser to enhance the green color expression.
  • the band rejection filter element 309 receives the laser light of the light exit channel 308 for filtering out part of the green light (such as light having a wavelength of 580 nm to 620 nm).
  • the band rejection filter The light element 309 can be located between the relay lens 306 and the light homogenizing device 350, such as at the entrance of the light homogenizing device 350 adjacent to the side of the relay lens 306, and in close proximity to the light homogenizing device 350.
  • FIG. 10 and FIG. 11 are schematic diagrams showing the structure of a light source system 400 according to a fourth embodiment of the present invention, wherein 10 and FIG. 11 are also schematic diagrams of light paths of the light source system 400 at two different time periods, Fig. 12 is a plan view showing the planar structure of the light combining and combining element shown in Fig. 10.
  • the light source system 400 has substantially the same structure as the light source system 200 of the second embodiment.
  • the light source system 400 further includes a second light source 460, a guiding element 461, and a light combining element 462; and the structure of the light combining and combining light element 420 is also different.
  • the second light source 460 is configured to emit supplemental light
  • the supplemental light emitted by the second light source 460 is guided to the light combining component 462 by the guiding component 461 via the collimating lens.
  • the light element 462 receives the supplemental light guided by the guiding element 461 and receives the excitation light emitted by the first light source 410 and supplies the supplemental light and the excitation light to the photosynthetic unit via the light homogenizing device 402.
  • Light element 420 is configured to emit supplemental light
  • the supplemental light emitted by the second light source 460 is guided to the light combining component 462 by the guiding component 461 via the collimating lens.
  • the light element 462 receives the supplemental light guided by the guiding element 461 and receives the excitation light emitted by the first light source 410 and supplies the supplemental light and the excitation light to the photosynthetic unit via the light homogenizing device 402.
  • the supplemental light is a red laser, but it is understood that in other embodiments, other color light such as green light may be used.
  • the guiding element 461 is a reflective element that transmits the excitation light and reflects the supplemental light.
  • the supplemental light emitted by the second light source 460 is reflected by the guiding element 461 to the light combining element 462 via a collimating lens, and the light combining element 462 receives the supplementary light reflected by the guiding element 461 and The supplemental light is reflected to the spectroscopic light combining element 420, and the light combining element 462 receives the excitation light emitted by the first light source 410 and transmits the excitation light to the spectroscopic light combining element 420.
  • the beam splitting light element 420 includes a first section 420a and a second section 420b, the first section 420a receiving the excitation light and supplemental light and reflecting the excitation light and supplemental light to the wavelength conversion Device 430, the wavelength conversion device 430 converts a portion of the excitation light into a laser beam and reflects the laser beam and the supplemental light to the second segment 420b, and the second segment 420b converts the laser beam And the supplemental light is transmitted to the light exit channel 408. It can be understood that, as shown in FIG. 7 , the light emitted by the beam splitting light element 420 (ie, the light of the light exiting channel 408 ) is the combined light of the supplemental light, the received laser light, and the other partial excitation light.
  • the first section 420a is located at the center of the beam splitting light element 420
  • the second section 420b is located at the periphery of the first section 420a.
  • the first section 420a is an area that reflects the excitation light emitted by the first light source 410 and reflects the complementary light emitted by the second light source 460, specifically, a region that reflects blue light and reflects red light.
  • the second section 420b is a region that reflects blue light and transmits other color lights (such as red light, green light, and yellow light).
  • the second segment 420b may reflect a wavelength smaller than a first preset value. Light and transmitting light having a wavelength greater than the first predetermined value, wherein the first predetermined value may be between 480 nanometers and 485 nanometers.
  • the second light source 460 may be turned on only when the wavelength conversion device 430 emits the same laser light as the supplemental light color or emits a laser light having the complementary light color component, as in the embodiment, the first The two light sources 460 may be turned on during a period in which the first segment region of the wavelength conversion device 430 emits a red laser or a yellow laser, and a green laser is emitted in the second segment region of the wavelength conversion device 430 and the The period in which the wavelength conversion device 430 reflects the blue excitation light is turned off, thereby increasing the color index of the red color and improving the efficiency of the light source.
  • FIG. 13 and FIG. 14 are schematic diagrams showing the structure of a light source system 500 according to a fifth embodiment of the present invention, wherein 13 and FIG. 14 are also schematic diagrams of light paths of the light source system 500 at two different time periods, respectively.
  • the light source system 500 has substantially the same structure as the light source system 400 of the fourth embodiment, that is, the above description of the light source system 400 can be basically applied to the light source system 500, and the difference between the two is mainly as follows:
  • the light homogenizing device of the light source system 500 is a compound eye system 550 (such as a fly-eye lens or a fly-eye lens pair), and the compound eye system 550 is configured to homogenize the laser-receiving light of the light-emitting channel 508 and another portion of the excitation light.
  • the compound eye system is better able to homogenize with respect to a homogenizing device such as a homogenizing square rod, thereby providing a more uniform beam for subsequent light source systems.
  • the light emitted by the compound eye system 550 is more suitable for an optomechanical system in the field of projection (including the micro-injection field), and the optomechanical system can image-modulate the light source light emitted by the light source system 500 according to image data. Produces the projection light required to display the image.
  • FIG. 15 and FIG. 16 are schematic diagrams showing the structure of a light source system 600 according to a sixth embodiment of the present invention, wherein 15 and FIG. 16 are also schematic diagrams of light paths of the light source system 600 at two different time periods, respectively.
  • the light source system 600 has substantially the same structure as the light source system 100 of the first embodiment. That is to say, the above description of the light source system 100 can be basically applied to the light source system 600, and the difference between the two is mainly as follows: The position of the first light source 610 and the structure of the light splitting and light combining element 620 are different, so that the light path of the light source system 600 is also slightly different.
  • the beam splitting and light combining element 620 is a dichroic color patch that transmits laser light by transmitting excitation light.
  • the excitation light emitted by the first light source 610 is transmitted by the spectroscopic light combining element 620 to the first section 631 of the wavelength conversion device 630, the first section 631 converts the excitation light into a received laser light and reflects the received laser light to the beam splitting light combining element 620, and the light splitting light combining element 620 further reflects the received laser light to the light exiting passage.
  • the first section 631 converts the excitation light into a received laser light and reflects the received laser light to the beam splitting light combining element 620
  • the light splitting light combining element 620 further reflects the received laser light to the light exiting passage.
  • the excitation light emitted by the first light source 610 is transmitted by the beam splitting light 620 to the second section 632 of the wavelength conversion device 630, the second section 632 reflects the excitation light to the guiding device 640, the guiding device 640 directs the excitation light to the beam splitting light element 620, and the beam splitting light element 620 further transmits the excitation light to the light emitting light aisle.
  • the first section 631 may include two segmented regions (such as a segmented region carrying red fluorescent material and a segmented region carrying green fluorescent material), and the laser received may include a first laser (eg, a red laser) a second received laser (such as a green laser), the first period of time may include a first sub-period and a second sub-period, wherein the segmented region carrying the red fluorescent material may receive the first sub-period Exciting light and generating the first received laser light, the segmented region carrying the green fluorescent material can receive the excitation light and generate the second received laser light.
  • a first laser eg, a red laser
  • a second received laser such as a green laser
  • the first light source 610 can be placed in a suitable position by flexibly designing the structure of the light combining and illuminating element 620, which facilitates the cooperation of the light source system 600 with other systems to reduce the volume or compact components or The purpose of proper placement.
  • FIG. 17 and FIG. 18 are schematic diagrams showing the structure of a light source system 700 according to a seventh embodiment of the present invention, wherein 17 and FIG. 18 are also schematic diagrams of light paths of the light source system 700 at two different time periods, respectively.
  • the light source system 700 has substantially the same structure as the light source system 100 of the first embodiment, that is, the above description of the light source system 100 can be basically applied to the light source system 700, and the difference between the two is mainly as follows: The position of the first light source 710, the structure of the beam splitting light element 720, the structure of the guiding device 740, and the structure of the wavelength converting device 730 are all different, so that the light path of the light source system 700 is also slightly different.
  • the beam splitting light element 720 further includes a beam splitting element 721 and a light combining element 722, and the light splitting element 721 is configured to guide (eg, transmit) the excitation light emitted by the first light source 710 to the wavelength In the conversion device 730, the light combining element combines the laser light generated by the first segment 731 and the excitation light reflected by the second segment 732 by a wavelength combining method.
  • the wavelength conversion device 730 includes a first surface 733a adjacent to the beam splitting element 721, a second surface 733b disposed opposite the first surface 733a, a side surface, and an inclined surface 733d.
  • the side surface includes a first side surface 7331 corresponding to the first section 731 and a second side surface 7332 corresponding to the second section 732.
  • the first surface 733a includes a first portion 733e corresponding to the first segment 731 and a second portion 733f corresponding to the second segment 732.
  • the inclined surface 733d is connected between the second portion 733f of the first surface 733a and the second side surface 7332, and the second side surface 7332 is higher than the first side surface 7331 and protrudes from the first surface
  • the surface 733a has an obtuse angle with the second portion 733f of the first surface 733a and the inclined surface 733d is at an acute angle with the second side surface 7332.
  • the beam splitting element 721 directs (eg, transmits) the excitation light emitted by the first light source 710 to the first section 731 of the wavelength conversion device 730, the first Section 731 converts the excitation light into a laser beam and reflects the laser light to the beam splitting element 721, which also directs (eg, reflects) the laser light to the light combining element 722, The light combining element 722 directs (eg, transmits) the laser light to the light exit channel.
  • the spectroscopic element 721 directs (eg, transmits) the excitation light emitted by the first light source 710 to the inclined surface 733d of the second section 732 of the wavelength conversion device 730,
  • the inclined surface 733d of the second section 732 reflects the excitation light to the guiding device 740.
  • the guiding device 740 includes a reflective element 741 that directs (eg, reflects) the excitation light to the light combining element 722, which directs (eg, reflects) the excitation light to The light exit channel.
  • the guiding device 740 can further include a astigmatism sheet 742, which can be disposed between the reflective element 741 and the light combining element 742, and the astigmatism sheet is used for the second area
  • the excitation light reflected by the segment 732 is scatter-decoherent.
  • the light source system 700 is matched with other systems to achieve the purpose of reducing the volume or compact or proper placement of the components.
  • FIG. 19 and FIG. 20 are schematic diagrams showing the structure of a light source system 800 according to an eighth embodiment of the present invention, wherein 19 and FIG. 20 are also schematic diagrams of light paths of the light source system 800 at two different time periods, respectively.
  • the light source system 800 has substantially the same structure as the light source system 800 of the first embodiment. That is to say, the above description of the light source system 100 can be basically applied to the light source system 800, and the difference between the two is mainly as follows: The position of the first light source 810, the structure of the beam splitting light element 820, and the structure of the wavelength conversion device 830 are all different, so that the light path and the light exit channel 808 of the light source system 800 are also slightly different.
  • the beam splitting light element 820 is a dichroic color patch that reflects the excitation light and is transmitted by the laser light.
  • the structure of the wavelength conversion device 830 is substantially the same as that of the wavelength conversion device 730 in the seventh embodiment, and the structure thereof will not be described herein.
  • the excitation light emitted by the first light source 810 is reflected by the beam splitting light element 820 to a first section 831 of the wavelength conversion device 830, the first section 831 generating a laser light and The laser beam is reflected to the beam splitting light element 820, and the light splitting light combining element 820 transmits the received laser light to the light exiting channel.
  • the excitation light emitted by the first light source 810 is reflected by the beam splitting light element 820 to a second section 832 of the wavelength conversion device 830, and the second section 832 reflects the excitation light to a guiding device 840 guiding the excitation light to the beam splitting light element 830.
  • the structure of the guiding device 840 is substantially the same as that of the guiding device 140 in the first embodiment, and is not here Let us repeat the structure.
  • the light source system 800 is matched with other systems to achieve the purpose of reducing the volume or compact or proper placement of the components.
  • FIG. 21 and FIG. 22 are schematic diagrams showing the structure of a light source system 900 according to a ninth embodiment of the present invention, wherein FIG. 21 and FIG. 22 are also schematic diagrams of optical paths of the light source system 900 at two different time periods, respectively.
  • the light source system 900 has substantially the same structure as the light source system 700 of the seventh embodiment. That is to say, the above description of the light source system 700 can be basically applied to the light source system 900, and the difference between the two is mainly as follows:
  • the structure of the wavelength conversion device 930 is different such that the light path of the light source system 900 is also slightly different.
  • the first surface 933a of the base 933 of the wavelength conversion device 930 is recessed toward the second surface 933b to form a recess 934, and the recess 934 includes the inclined surface 933d and a relative opposite to the inclined surface 933d. Face 935.
  • the concave portion 935 has a V-shaped cross section, and the inclined surface 933d is connected to the opposite surface 935.
  • the inclined surface 933d is further connected to the side surface 933c of the base 933, and the opposite surface 935 Connected between the inclined surface 933d and the first surface 933a.
  • the angle of the excitation light reflected by the inclined surface 933d is slightly different from that in the seventh embodiment.
  • the guiding device 940 is slightly different in position from the guiding device 740 in the seventh embodiment and the guiding device 140 in the first embodiment, but the structures are substantially the same, and the specific structure and optical path thereof will not be described herein.
  • the light source system 900 is matched with other systems to achieve the purpose of reducing the volume or compact or proper placement of the components.
  • FIG. 23 and FIG. 24 are schematic structural diagrams of a modified embodiment of a light source system according to a first embodiment of the present invention, wherein FIG. 23 and FIG. 24 are also respectively in two different time periods.
  • Schematic diagram of the optical path of the light source system 1000, and FIG. 25 is a schematic plan view of the wavelength conversion device 1130 of the light source system 1000 shown in FIG.
  • the light source system 1000 is basically the same as the light source system 100 of the first embodiment, that is, the above description of the light source system 100 can be basically applied to the light source system 1000, and the difference between the two is mainly as follows:
  • the structure of the light combining and combining element 1120 is different from that of the wavelength conversion device 1130, and the optical path of the light source system 1000 is also different.
  • the first region 1120a (such as the central region) of the light combining and combining light element 1120 receives the excitation light emitted by the first light source 1110 and directs the excitation light to the wavelength conversion in a first period of time.
  • the first section 1131 of the device 1130, the first surface 1133a of the first section 1131 may not be provided with a fluorescent material, and the first section 1131 scatters and reflects the excitation light emitted by the first light source 1110 and The excitation light is reflected along the first optical path to a second region 1120b around the first region of the beam splitting light element 1120, and the second region 1120b transmits the excitation light to the light exit channel.
  • the first region 1120a (eg, the central region) of the light combining and combining light element 1120 receives the excitation light emitted by the first light source 1110 and guides the excitation light to the second segment 1132 of the wavelength conversion device 1130 during the second time period.
  • a fluorescent material is disposed on the inclined surface 1133d of the second segment 1131, the second segment 1132 converts the excitation light into a laser light, and the laser light is different from the first light path and A second optical path that does not coincide with the first optical path is reflected to the guiding device 1140, and the guiding device 1140 directs the laser light to the spectroscopic light combining element 1120, and the light combining and combining element 1120 passes the laser receiving light Guide (e.g., reflect) to the light exit channel 1108.
  • the laser receiving light Guide e.g., reflect
  • the excitation light of the light source system 1000 of the modified embodiment is interchanged with the optical path of the laser light, that is, the excitation light is reflected along the first optical path to the spectral light combining element.
  • the laser is guided along the second optical path to the guiding device 1140, and the guiding device redirects (eg, reflects) the laser light to the beam splitting light element 1120 to guide the laser light to the light output aisle.
  • one of the laser light and the excitation light reflected by the second sections 132 and 1132 passes through the Guide means 140, 1140 are directed to the beam splitting elements 120, 1120, and the other of the excitation light reflected by the laser and the second sections 132, 1132 is directed to the splitting light In the element 1120, the spectral light combining element 120 combines the laser light and the excitation light reflected by the second sections 132 and 1132 by a light combining method.
  • the excitation can be flexibly designed and transformed by changing the wavelength conversion devices 130, 1130, the light combining and combining elements 120, 1120, and the guiding devices 140, 1140. Light and the optical path of the laser.
  • the excitation light and the optical path of the laser light are also interchangeable, that is, the excitation light is reflected along the first optical path.
  • the laser light is guided along the second light path to the guiding device, and the guiding device redirects (eg, reflects) the laser light to the light combining and combining element to The laser beam is guided to the light exiting passage, and the specific structure of each modified embodiment will not be described herein.
  • the wavelength conversion device 1030 reflects the oblique region 1031 of the excitation light (ie, the second segment).
  • An empty slot 1032 is dug in the opposite area of the second reflective area.
  • the empty slot 1032 and the oblique side area 1031 are respectively located on opposite sides of the central axis of the wavelength conversion device 1030 and are oppositely disposed, and the empty slot 1032 is located at the wavelength conversion material.
  • An inner ring region adjacent to the annular region. The area occupied by the empty groove 1032 is a part of the area of the ring in which the empty groove 1032 is located.
  • the mass excavated by the recess 1032 is substantially equal to the mass cut by the bevel region 1031, so that when the wavelength conversion device 1030 is rotated about the center of the circle, the mass distribution is uniform, and the center of gravity is located on the straight line of the axis of the wavelength conversion device 1030. So, so that the entire wavelength conversion device 1030 can maintain a good dynamic balance during the movement.
  • the solution is suitable for the diameter of the wavelength conversion device 1030 to be slightly smaller, that is to say, the smaller the diameter of the wavelength conversion device 1030, the better the dynamic balance of the wavelength conversion device 1030, and the larger the diameter, the more likely the vibration occurs.
  • the wavelength conversion device 1230 cuts off a part of the volume in the oblique region 1231 of the reflected excitation light, which causes the whole
  • the mass distribution of the wavelength conversion device 1230 is not uniform.
  • an empty groove 1232 can be dug under the oblique side region 1231, and then the high density is filled in the empty groove 1232.
  • the material is such that the mass of the left and right regions of the entire wavelength conversion device 1230 is comparable.
  • the wavelength conversion device 1330 is provided with the same magnitude on the opposite side of the oblique region 1331 of the reflected excitation light.
  • the oblique region 1332, the oblique region 1331 reflecting the excitation light and the second oblique region 1332 are equal in area and parallel to each other.
  • the thickness of the wavelength conversion device 1330 exceeds 4 mm, the oblique side area 1331 and the second oblique side area 1332 cannot be designed to be completely symmetrical during the actual operational design, that is, the oblique side area 1331 and the second oblique side area 1332. Not completely parallel to each other.
  • the weight compensated by the second bevel region 1332 needs to be calculated based on the weight missing from the bevel region 1331.
  • the solution compensates for the same quality on the same outer diameter, and can improve the balance during the rotation of the entire wavelength conversion device 1330 without increasing the amount of vibration during the operation of the motor.
  • the wavelength conversion device 1430 is provided with a mass 1432 at a position below the oblique region 1431 of the reflected excitation light.
  • the mass 1432 can compensate for the mass of a portion of the volume cut in the bevel region 1431 such that the mass in the semicircle in which the bevel region 1431 is located is equivalent to the mass in the semicircle opposite to the bevel region 1431, that is, the entire wavelength conversion.
  • the mass of the device 1430 can be at a line on the axis of the axis of rotation of the rotating shaft.
  • the wavelength conversion device 1430 can protect a better dynamic balance during motion.
  • a circle-shaped fence 1532 is provided in the aspect of the wavelength conversion device 1530, and the quality distribution of the circle-shaped fence is not In all, the mass distribution is set to be closer to the portion of the oblique-edge region 1531, and the region opposite to the oblique-edge region 1531 is lighter, so that the mass distribution of the entire wavelength conversion device 1530 is uniform.
  • the circle-shaped fence 1532 is preferably implemented in the manufacturing process, and is easy to operate.
  • the wavelength conversion device 1530 maintains a good dynamic balance during high speed rotation.
  • FIG. 32 is a block diagram of a display device 60 in accordance with a preferred embodiment of the present invention.
  • the display device 60 may be a projection device, such as an LCD, a DLP, or a LCOS projection device.
  • the display device 60 may include a light source system 61, a light machine system 62, and a projection lens 63.
  • the light source system adopts any of the above embodiments.
  • the optomechanical system 62 can image modulate the light source light emitted by the light source system 61 according to image data to generate projection light required for displaying an image, and the projection lens 63 is configured to display a projection according to the projection light. image.
  • the display device 60 of the light source system employing the above-described light source systems 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 and its modified embodiment is small in volume.
  • the light source systems 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 of the present invention and the light source system of the modified embodiment thereof can also be used for a stage light system, a vehicle lighting system, and a surgical illumination.
  • the system and the like are not limited to the above-described projection device.

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  • Engineering & Computer Science (AREA)
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  • Projection Apparatus (AREA)

Abstract

La présente invention concerne un système de source de lumière et un dispositif d'affichage. Le système de source de lumière (100) comprend une première source de lumière (110), une unité de conversion de longueur d'onde (130), et une unité de guidage (140); la première source de lumière (110) sert à émettre une lumière d'excitation (171); l'unité de conversion de longueur d'onde (130) comprend une première section (131) et une seconde section (132); la première section (131) et la seconde section (132) sont situées sur un trajet de lumière de la lumière d'excitation (171) dans une séquence temporelle; la première section (131) sert à recevoir la lumière d'excitation (171) et à produire une lumière excitée (172), et à réfléchir la lumière excitée (172) le long d'un premier trajet de lumière; la seconde section (132) sert à réfléchir la lumière d'excitation (171) le long d'un second trajet de lumière qui ne coïncide pas avec le premier trajet de lumière; et l'unité de guidage (140) sert à guider la lumière excitée (172) et/ou la lumière d'excitation (171) réfléchie par la seconde section (132) vers un canal de sortie de lumière (108).
PCT/CN2017/096513 2017-05-26 2017-08-09 Système de source de lumière et dispositif d'affichage WO2018214288A1 (fr)

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