CN108803218A - Lighting system - Google Patents

Lighting system Download PDF

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Publication number
CN108803218A
CN108803218A CN201710463137.4A CN201710463137A CN108803218A CN 108803218 A CN108803218 A CN 108803218A CN 201710463137 A CN201710463137 A CN 201710463137A CN 108803218 A CN108803218 A CN 108803218A
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CN
China
Prior art keywords
light
light beam
nanometers
spectrum
lighting system
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Granted
Application number
CN201710463137.4A
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Chinese (zh)
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CN108803218B (en
Inventor
陈时伟
张硕杰
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Young Optics Inc
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Young Optics Inc
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Priority to CN202110633586.5A priority Critical patent/CN113296341B/en
Publication of CN108803218A publication Critical patent/CN108803218A/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • G03B21/2006Lamp housings characterised by the light source
    • G03B21/2013Plural light sources
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings
    • G03B21/2006Lamp housings characterised by the light source
    • G03B21/2033LED or laser light sources
    • G03B21/204LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence

Abstract

The invention provides a lighting system which comprises a first light source capable of outputting first light, a second light source capable of outputting second light, a third light source capable of outputting third light, a fourth light source capable of outputting fourth light, a first fluorescent powder layer, a first light guide piece and a second light guide piece. The first light guide member is arranged between the light paths of the first light source and the second light source. The first light reaches the first fluorescent powder layer and is converted into fifth light, and the second light reaches the first fluorescent powder layer through the first light guide piece and is converted into sixth light. The fifth light and the sixth light have spectra, and peak wavelengths of the spectra of the fifth light and the sixth light are between 625 nm and 740 nm, respectively.

Description

Lighting system
Technical field
The present invention relates to a kind of lighting system more particularly to a kind of lighting systems suitable for projector.
Background technology
With the development of solid state light emitter and shadow casting technique in recent years, with light emitting diode (light-emitting diode, LED) and the projection arrangement based on the solid state light emitters such as laser diode (laser diode) is gradually favored by market.
In general projector configuration, it will usually which lighting system is set to provide illuminating ray.Illuminating ray passes through light Image light is converted to after valve, and image light after projection lens by that can be incident upon on screen or metope.Projector exports Image light brightness depend on the provided illuminating ray of lighting system brightness.In the lighting system of general projector, One exportable blue light of blue light source generates feux rouges with excitated red fluorescent powder, and the exportable blue light of another blue light source is to swash Fluoresced green powder generates green light.In addition, above-mentioned feux rouges, green light and another be collectively formed by the blue light that blue light source is exported The three primary colors (RGB) for the illuminating ray that lighting system is exported.In existing projector configuration, it usually can also additionally be arranged one A blue light source is swashed with providing blue light to above-mentioned green emitting phosphor by other light paths to reinforce green emitting phosphor The intensity of the green light of hair uses the brightness for increasing lighting system output light.
Invention content
The present invention provides a kind of lighting system, and the light of output has higher brightness, and the configuration of its component is compact (compact)。
The lighting system of the embodiment of the present invention includes first light source, second light source, third light source, the 4th light source, first glimmering Light bisque, the first light guide and the second light guide.Exportable first light of first light source, exportable second light of second light source, The exportable third light of third light source, and exportable 4th light of the 4th light source.First light guide is set to first light source and Between the light path of two light sources.First light reaches the first phosphor powder layer and is converted to the 5th light, and the second light is via first Light guide reaches the first phosphor powder layer, and is converted to the 6th light.5th light and the 6th light are respectively provided with spectrum, and the 5th The peak wavelength of these spectrum of light and the 6th light is respectively interposed between 625 nanometers to 740 nanometers.
The lighting system of the embodiment of the present invention includes the first light-emitting component, the second light-emitting component, third light-emitting component, the 4th Light-emitting component, the 5th light-emitting component, the first phosphor powder layer, the second phosphor powder layer, the first closing light part and the second closing light part.First hair Exportable first light beam of optical element, exportable second light beam of the second light-emitting component, the exportable third light beam of third light-emitting component, the Exportable 4th light beam of four light-emitting components, and exportable 5th light beam of the 5th light-emitting component.First phosphor powder layer is set to first Between the light path of light-emitting component and the second light-emitting component, and the second phosphor powder layer is set to third light-emitting component and the 4th luminous member Between the light path of part.First closing light part is set between the light path of the first light-emitting component and the second light-emitting component, and the second closing light Part is set between the light path of third light-emitting component and the 4th light-emitting component.First light beam enters the first phosphor powder layer and excites the Six light beams;Second light beam enters the first phosphor powder layer via the first closing light part and excites the 7th light beam;Third light beam enters second Phosphor powder layer simultaneously excites the 8th light beam;4th light beam enters the second phosphor powder layer via the second closing light part and excites the 9th light beam; 5th light beam, the 6th light beam, the 7th light beam, the 8th light beam and the 9th light beam export lighting system via the second closing light part;6th Light beam and the 7th light beam are respectively provided with spectrum, and the difference of the peak wavelength of the spectrum of the 6th light beam and the 7th light beam is received less than 20 Rice.8th light beam and the 9th light beam are respectively provided with spectrum, and the difference of the peak wavelength of the spectrum of the 8th light beam and the 9th light beam Less than 20 nanometers.
Based on above-mentioned, in the lighting system of related embodiment of the present invention, by the peak value of lighting system institute output spectrum Light of the wavelength between 625 nanometers to 740 nanometers increases.When lighting system is, for example, to be applied to projection arrangement, projection The light that device is exported has higher brightness.In addition, in the lighting system of the related embodiment of the present invention, due to setting Additional two groups of light sources the output of light source are arranged with reinforcement original respectively, therefore the inner space of lighting system is appropriate with excitated fluorescent powder It is kind to be exported the light for reinforcing lighting system in a manner of light source is arranged by increase so that the component configuration of lighting system is tight It gathers, wasted space is reduced.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and it is detailed to coordinate attached drawing to make Carefully it is described as follows.
Description of the drawings
Fig. 1 shows the framework signal of the lighting system of one embodiment of the invention and the projection arrangement using this lighting system Figure;
Fig. 2 shows the framework signal of the lighting system of another embodiment of the present invention and the projection arrangement using this lighting system Figure.
Reference sign:
100,300:Lighting system
200,400:Projection arrangement
210,410:Light valve
220,420:Projection lens
B1,B2,B3,B4,B5,B6,B7,B8,B9:Light beam
C1,C2:Closing light part
E1,E2,E3,E4,E5:Light-emitting component
G1,G2:Light guide
IM:Projection ray
L1,L2,L3,L4,L5,L6,L7,L8,L9:Light
P1,P2,P1',P2':Phosphor powder layer
S1,S2,S3,S4,S5:Light source
Specific implementation mode
The so-called optical element of the present invention means that there is element the material that can be reflected or penetrate partially or in whole to be constituted, leads to Include often that glass or plastic cement are formed.The so-called lens of the present invention, mean that a permission at least part light penetrates, and incidence surface or go out The non-optical element for plane of minimum of one of smooth surface, such as plate glass, i.e., non-is lens.The so-called closing light of the present invention, meaning can By more than one light beam, synthesis one light beam output.The so-called light splitting of the present invention, meaning it is defeated can be divided into several light beams by a light beam Go out.
Fig. 1 shows the framework signal of the lighting system of one embodiment of the invention and the projection arrangement using this lighting system Figure, please refers to Fig.1.In the present embodiment, projection arrangement 200 includes lighting system 100, light valve 210 and projection lens 220.According to Bright system 100 includes light source S1, light source S2, light source S3, light source S4, light source S5, phosphor powder layer P1, phosphor powder layer P2, light guide G1 and light guide G2.
The design of each element will be illustrated respectively below.In the present embodiment, the exportable light L1 of light source S1, light source S2 exportable light L2, light source the S3 exportable light L4 of exportable light L3, light source S4, and the exportable light L8 of light source S5.Light Source S1, light source S2, light source S3, light source S4 and light source S5 respectively include e.g. sending out the laser diode of various visible lights (laser diode, LD) chip, light emitting diode (light-emitting diode, LED) chip or aforementioned each encapsulation Either one or two of body.In the present embodiment, light source S1, light source S2, light source S3, light source S4 and light source S5 include a blue light emitting two Pole pipe chip, and light L1, light L2, light L3, light L4 and light L8 color be essentially blue.Light L1, light L2, light L3, light L4 and light L8 are respectively provided with a spectrum.Spectrum refers to that light is sequentially arranged shape according to the wavelength size of light At pattern.Specifically, the peak wavelength of these spectrum of light L1, light L2, light L3, light L4 and light L8 (peak wavelength) is respectively interposed between 400 nanometers to 475 nanometers, wherein the peak wavelength of the spectrum of light is light intensity Spend the corresponding wavelength of maximum.More particularly, light L1, light L2, light L3, light L4 and light L8 are in a spectral energy It is respectively provided with a corresponding spectral energy distribution curve (spectral energy distribution in distribution collection of illustrative plates Curve), and the wave crest system of this distribution curve falls among the range of wavelengths of blue (be, for example, 450 nanometers to 475 nanometers).And Other than luminescence chip itself, light source S1, light source S2, light source S3, light source S4 and light source S5 are also optionally respectively equipped with one Lens (not indicating) with diopter, to the diverging direction of convergent light rays.And in this example, it is not another above each light source Equipped with lens above-mentioned.
In addition, the present invention meaning phosphor powder layer P1, P2 are meant including at least the optical element containing fluorescent powder that has one.It is brighter True says, phosphor powder layer P1, P2 are a light transmission colloid for being impregnated with fluorescent powder;Fluorescent wheel;Flourescent sheet or other include fluorescent powder And the optical element with wavelength convert function.In the present embodiment, phosphor powder layer P1 is set in the light path of light source S1, also That is, phosphor powder layer P1 is set in the transmission path of light L1.Phosphor powder layer P2 is set in the light path of light source S3, also that is, glimmering Light bisque P2 is set in the transmission path of light L3.Phosphor powder layer P1 and phosphor powder layer P2 can receive excitation line, and by Conversion light is generated by luminescence generated by light (Photoluminescence) phenomenon.Specifically, phosphor powder layer P1 can for example connect By light L1 blue light and generate light L5, the blue light of light L2 can also be received and generate light L6.Light L5 and light L6 Be respectively provided with a spectrum, and the peak wavelength of these spectrum of light L5 and light L6 be respectively interposed in 625 nanometers to 740 nanometers it Between.And in this example, light source S2 can be exchanged with the position of light source S1.More particularly, light L5 and light L6 are one A corresponding spectral energy distribution curve is respectively provided in spectral power distribution collection of illustrative plates, and the wave crest system of this distribution curve falls Among the range of wavelengths of red (being, for example, 625 nanometers to 740 nanometers).In addition, phosphor powder layer P2 can for example receive light L3 Blue light and generate light L7, the blue light of light L8 can also be received and generate light L9.Light L7 and light L9 are respectively provided with One spectrum, and the peak wavelength of these spectrum of light L7 and light L9 is between 495 nanometers to 570 nanometers.It is more specific It saying, light L7 and light L9 are respectively provided with a corresponding spectral energy distribution curve in a spectral power distribution collection of illustrative plates, and The wave crest system of this distribution curve falls among the range of wavelengths of green (being, for example, 495 nanometers to 570 nanometers).
Furthermore light guide G1 and light guide G2 of the invention mean light splitting piece, polarizing film, optical filter, speculum, lens, Plate glass, prism, integration rod, lamp guide or including aforementioned each at least one combination.Specifically, light splitting piece system is general Referring to has the optical element of light splitting function, such as half-reflecting half mirror, using the polarizing film of P, S polarity light splitting, various wave plates, using entering The various prisms of optic angle light splitting utilize the light splitting piece etc. of wavelength light splitting.Specifically, in the present embodiment, light guide G1 and Light guide G2 has wavelength selectivity, for the color separation film being divided using wavelength (color), e.g. dichroscope (dichroic mirror,DM).In a related embodiment, light guide G1 and light guide G2 can be to be independently arranged, and have color separation The optical element of function, or plating is attached to dichroic coating or coating on other components, and the present invention is not limited thereto.And In this example, light guide G1 can allow blue ray to reflect, allow red light to penetrate and green light is allowed to reflect.And light guide G2 can It allows blue ray to reflect and the light of other colors is allowed to penetrate.
In the present embodiment, light guide G1 is set between the light path of light source S1 and light source S2 and light source S3 and light source S5 Light path between.Specifically, light guide G1 is set in the transmission path by the light source S2 light L2 sent out, and by light source S5 In the transmission path of the light L8 sent out.In addition, light guide G2 is set between the light path of light source S1 and light source S2, i.e. light guide G2 is set in the transmission path by the light source S2 light L2 sent out.Specifically, light guide G1 can reflection blue light simultaneously Green light is allowed to pass through.And light guide G2 reflection blue light and can allow green and red light to pass through.In the present embodiment, Light L4, light L5, light L6, light L7 and light L9 are formed and are illuminated via light guide G2 output lighting systems 100 respectively Light.
Specifically, lighting system 100 can further include light equalization element, be set to the transmission path of above-mentioned illuminating ray On, to make the uniform intensity distribution of illuminating ray.Specifically, light equalization element can be fly's-eye lens (Fly-eye Lens) or the optical elements such as optical integration pillar (light integration rod), the present invention is not limited thereto.In addition, according to Bright system 100 can also further include other optical elements according to actual demand, e.g. lens, diffusion sheet (diffuser), Speculum or prism etc., the present invention is not limited thereto.
The light valve 210 of the present invention, the separate unit containing there are many, they are spatially arranged in one-dimensional or two-dimensional array.Often A unit all can independently receive the control of optical signalling or electrical signal, using various physical effects (bubble Ke Ersi effects, gram Your effect, acoustooptical effect, magneto-optic effect, the Self Electro-optic Effect of semiconductor, photorefractive effect etc.) change the optical characteristics of itself, To which the illumination light to illumination in a plurality of separate units is modulated, and export image light.Separate unit is miniature anti- Penetrate the optical elements such as mirror, liquid crystal cells.Specifically, light valve 210 of the invention is digital micromirror element (digital micro- Mirror device, DMD), silica-based liquid crystal panel (liquid-crystal-on-silicon panel, LCOS panel) or It is penetration liquid crystal display panel.And in this example, light valve is digital micromirror element, however, in other embodiments, light valve 210 is also Can be penetration liquid crystal display panel or other spatial light modulators, the present invention is not limited thereto.And light valve 210 and lighting system It may include the optical element (not shown) for having e.g. total reflection prism or reversed total reflection prism between 100.
In addition, projection lens 220 is made of at least one piece of lens.220 inside of projection lens can be equipped with aperture light Column or optical path, and the front and back of aperture diaphragm is arranged with an at least lens to adjust the shape and aberration of image light.
Illustrate to following exemplary the arrangement of each element of projection arrangement 200 and the transmission process of light.In the present embodiment In, the light L1 of light source S1 output blues, and the light L1 of blue reaches phosphor powder layer P1 and is converted to red light L5.Light The light L2 of source S2 output blues reaches phosphor powder layer P1 via light guide G1, and is converted to red light L6.In detail and Speech, light L2 are transferred to phosphor powder layer P1 after sequentially being reflected on light guide G2 and light guide G1.Light guide G2 relative to Light source S2 is inclined so that light L2 is, for example, 45 degree of angles to the optic angle that enters of light guide G2.And light guide G2 and light guide G1 Also substantially parallel.Specifically, after red light L5 and light L6 leave phosphor powder layer P1, red light L5 and light Line L6 occurs to reflect on light guide G1 and passes through light guide G2.In addition, the light L3 of light source S3 output blues, and light L3 is arrived Up to phosphor powder layer P2 and be converted to green light L7.The light L8 of light source S5 output blues, and light L8 is via light guide G1 Phosphor powder layer P2 is reached, and is converted to the light L9 of green.Specifically, blue light L8 reflects on light guide G1 After be transferred to phosphor powder layer P2.Light guide G1 is inclined relative to light source S5 so that light L8 enters optic angle to light guide G1's For example, 45 degree of angles.Specifically, after the light L7 and light L9 of green leave phosphor powder layer P2, light L7 and light L9 according to Sequence passes through light guide G1 and light guide G2.In addition, the light L4 of light source S4 output blues, and light L4 occurs on light guide G2 Reflection.
In the present embodiment, the above-mentioned light L4 reflected on light guide G2 and by the light L5 of light guide G2, Light L6, light L7 and light L9 are merged into illuminating ray and are exported from lighting system 100.Specifically, light L4 Color is, for example, the color e.g. red of blue, light L5 and light L6, and the color of light L7 and light L9 are e.g. green Color.Therefore, light L4, light L5, light L6, light L7 and light L9 can provide the three primary colors (RGB) of illuminating ray.At this In embodiment, above-mentioned illuminating ray is transmitted to light valve 210, and light valve 210 by illuminating ray being converted to projection ray IM.Separately Outside, projection lens 220 to by projection ray IM project on an imaging plane or screen (not shown) to form image picture Face.
Aforementioned alleged red light, mean the peak wavelength of the spectrum of light be respectively interposed in 625 nanometers to 740 nanometers it Between.Therefore, light (feux rouges) of the peak wavelength of 100 output spectrums of lighting system between 625 nanometers to 740 nanometers increases Add so that the light that projection arrangement 200 is exported has higher brightness.In addition, in the present embodiment, lighting system 100 is set It sets light source S1 and light source S2 and carrys out excitated fluorescent powder layer P1 to provide light L1 and light L2 respectively, and light is arranged in lighting system 100 Source S3 and light source S5 carrys out excitated fluorescent powder layer P2 to provide light L3 and light L8 respectively.In other words, volume is arranged in lighting system 100 The output of light source is arranged with reinforcement original respectively with excitated fluorescent powder for outer two groups of light sources.Therefore, the inner space of lighting system 100 It is properly exported the light for reinforcing lighting system 100 in a manner of light source is arranged by increase so that the structure of lighting system 100 Part configuration is compact, and wasted space is reduced.
With continued reference to FIG. 1, illustrating the associated components of the present embodiment with another describing mode below.In the present embodiment, Including light-emitting element E 1, light-emitting element E 2, light-emitting element E 3, light-emitting element E 5, light-emitting element E 4, phosphor powder layer P1 ', fluorescent powder Layer P2 ', closing light part C1, closing light part C2.
The light-emitting component of the present invention, means an optical element that can generate light.More particularly, light-emitting component means hair Luminous diode chip, laser diode chip, the module made of aforementioned chip package or other can reach identical effect Element or combinations thereof.
The closing light part C1 and closing light part C2 of the present invention means the optical element with closing light function.Specifically, closing light part C1 and closing light part C2 mean light splitting piece, polarizing film, optical filter, speculum, lens, plate glass, prism, integration rod, lamp guide Or including aforementioned each at least one combination.Light splitting piece system refers to, and such as half-reflecting half mirror, utilizes the inclined of P, S polarity light splitting Shake piece, various wave plates, utilize the various prisms for entering optic angle light splitting, the light splitting piece etc. that is divided using wavelength.Specifically, at this In embodiment, closing light part C1 and closing light part C2 have wavelength selectivity, for the color separation film being divided using wavelength (color), example Dichroscope (dichroic mirror, DM) in this way.In a related embodiment, closing light part C1 and closing light part C2 can be independent Setting, or plating is attached to dichroic coating or coating on other components, and the present invention is not limited thereto.And light beam B1, light Beam B2, light beam B3, light beam B4, light beam B5, light beam B6, light beam B7, light beam B8 and light beam B9 are similar with the explanation of precedent, therefore not Repeat it.
Fig. 2 shows the framework signal of the lighting system of another embodiment of the present invention and the projection arrangement using this lighting system Figure.Referring to FIG. 2, in the present embodiment, lighting system 300 and projection arrangement 400 are similar to the lighting system of Fig. 1 embodiments 100 and projection arrangement 200, difference is as described below.In the present embodiment, projection arrangement 400 includes lighting system 300, light valve 410 and projection lens 420.Lighting system 300 include light-emitting element E 1, light-emitting element E 2, light-emitting element E 3, light-emitting element E 4, Light-emitting element E 5, phosphor powder layer P1 ', phosphor powder layer P2 ', closing light part C1 and closing light part C2.
The design of each element will be illustrated respectively below.In the present embodiment, 1 exportable light beam B1 of light-emitting element E, 2 exportable light beam B2 of light-emitting element E, 3 exportable light beam B3 of light-emitting element E, 4 exportable light beam B4 of light-emitting element E, and the member that shines The exportable light beam B5 of part E5.In the present embodiment, light-emitting element E 1, light-emitting element E 2, light-emitting element E 3, light-emitting element E 4 and hair Optical element E5 for example includes a blue LED chip, and light beam B1, light beam B2, light beam B3, light beam B4 and light beam B5 Color be for example essentially blue.Light beam B1, light beam B2, light beam B3, light beam B4 and light beam B5 are respectively provided with a spectrum, and light The peak wavelength of these spectrum of beam B1, light beam B2, light beam B3, light beam B4 and light beam B5 is respectively interposed in 400 nanometers to 475 nanometers Between.In addition, in the present embodiment, light beam B1, light beam B2, light beam B3, light beam B4 and light beam B5 make flowing mode and Fig. 1 is implemented Example light L1, light L2, light L3, light L4 and light L8 it is similar, details are not described herein.
In addition, in the present embodiment, phosphor powder layer P1 ' is set between the light path of light-emitting element E 1 and light-emitting element E 2, And phosphor powder layer P2 ' is set between the light path of light-emitting element E 3 and light-emitting element E 4.Phosphor powder layer P1 ' can for example receive light The blue light of beam B1 simultaneously generates light beam B6, can also receive the blue light of light beam B2 and generates light beam B7.Light beam B6 and light beam B7 difference Peak wavelength with a spectrum, and these spectrum of light beam B6 and light beam B7 is respectively interposed between 495 nanometers to 570 nanometers. In addition, the difference of the peak wavelength of the spectrum of light beam B6 and light beam B7 is, for example, to be less than 20 nanometers.Specifically, light beam B6 and light The color of beam B7 is, for example, green.In the present embodiment, the light L7 for making flowing mode and Fig. 1 embodiments of light beam B6 and light beam B7 And light L9 is similar, details are not described herein.In addition, phosphor powder layer P2 ' can for example receive the blue light of light beam B3 and generate light beam B8 can also receive the blue light of light beam B4 and generate light beam B9.Light beam B8 and light beam B9 is respectively provided with a spectrum, and light beam B8 and The peak wavelength of these spectrum of light beam B9 is respectively interposed between 625 nanometers to 740 nanometers.In addition, light beam B8 and light beam B9 The difference of the peak wavelength of spectrum is, for example, to be less than 20 nanometers.Specifically, the color of light beam B8 and light beam B9 are, for example, red. In the present embodiment, light beam B8 and light beam B9 is similar with the light L5 of Fig. 1 embodiments and light L6, and details are not described herein.
Furthermore in the present embodiment, closing light part C1 is set between the light path of light-emitting element E 1 and light-emitting element E 2, and is closed Light part C2 is set between the light path of light-emitting element E 3 and light-emitting element E 4.The relativeness and figure of closing light part C1 and closing light part C2 The light guide G1 and light guide G2 of 1 embodiment are similar, and details are not described herein.Closing light part C1 the reflected beams B5 and can make light beam B6, light beam B7, light beam B8 and light beam B9 pass through.Closing light part C2 the reflected beams B8 and light beam B9 and can make light beam B5, light beam B6 And light beam B7 passes through.In the present embodiment, light beam B5, light beam B6, light beam B7, light beam B8 and light beam B9 are respectively via closing light part C2 It exports lighting system 100 and forms illuminating ray.
In the present embodiment, the related narration of light valve 410 and projection lens 420 can be respectively with reference to the light of 1 embodiment of figure The related narration of valve 210 and projection lens 220, details are not described herein.
Illustrate to following exemplary the arrangement of each element of projection arrangement 400 and the transmission process of light.In the present embodiment In, 1 output beam B1 of light-emitting element E, and light beam B1 enters phosphor powder layer P1 ' and excitation beam B6.2 output light of light-emitting element E Beam B2, and light beam B2 enters phosphor powder layer P1 ' and excitation beam B7 via closing light part C1.Specifically, light beam B2 is in closing light part Phosphor powder layer P1 ' is transferred to after being reflected on C1.After light beam B6 and light beam B7 leave phosphor powder layer P1 ', light beam B6 and light Beam B7 sequentially passes through closing light part C1 and closing light part C2.In addition, 3 output beam B3 of light-emitting element E, and light beam B3 enters phosphor powder layer P2 ' and excitation beam B8.4 output beam B4 of light-emitting element E, and light beam B4 enters phosphor powder layer P2 ' via closing light part C2 and swashs Shine beam B9.Specifically, light beam B4 after closing light part C2 by being transferred to phosphor powder layer P2 '.When light beam B8 and light beam B9 leave After phosphor powder layer P2 ', light beam B8 and light beam B9 reflect on closing light part C2.In addition, 5 output beam B5 of light-emitting element E, and Light beam B5 reflected on closing light part C1 after by closing light part C2.
In the present embodiment, the above-mentioned light beam B8 reflected on closing light part C2 and light beam B9 and pass through closing light part C2's Light beam B5, light beam B6 and light beam B7 are merged into illuminating ray and are exported from lighting system 300.Specifically, light beam B5 Color is, for example, the color e.g. green of blue, light beam B6 and light beam L7, and the color of light beam B8 and light beam B9 are e.g. red Color.Therefore, light beam B5, light beam B6, light beam B7, light beam B8 and light beam B9 can provide the three primary colors of illuminating ray.
Specifically, lighting system 300 and projection arrangement 400 can at least be obtained similar to illumination system in Fig. 1 embodiments The technique effect of system 100 and projection arrangement 200.The light that projection arrangement 400 is exported has higher brightness.In addition, illumination The inner space of system 300 is properly exported the light for reinforcing lighting system 300 in a manner of light source is arranged by increase, is made The component configuration for obtaining lighting system 300 is compact, and wasted space is reduced.
With continued reference to FIG. 2, illustrating the associated components of the present embodiment with second of describing mode below.In the present embodiment In, include light source S3, light source S5, light source S1, light source S2, light source S4, phosphor powder layer P2, phosphor powder layer P1, light guide G2, leads Light part G1.In addition, for traveling mode, light beam B1 is similar with light L3, and light beam B2 is similar with light L8, light beam B3 and light L1 is similar, and light beam B4 is similar with light L2, and light beam B5 is similar with light L4, and light beam B6 is similar with light L7, light beam B7 and light L9 is similar, and light beam B8 is similar with light L5, and light beam B9 is similar with light L6.
In the present embodiment, with component described in second of describing mode (such as light source S1, light source S2, light source S3, light Source S4, light source S5, phosphor powder layer P1, phosphor powder layer P2, light guide G1, light guide G2, light L1, light L2, light L3, light L4, light L5, light L6, light L7, light L8 and light L9) related narration can at least refer in aforementioned paragraphs about figure The explanation of 2 embodiments, details are not described herein.
In conclusion the present invention related embodiment in, by lighting system institute output spectrum peak wavelength between Light between 625 nanometers to 740 nanometers increases.When lighting system is, for example, to be applied to projection arrangement, projection arrangement institute is defeated The light gone out has higher brightness.In addition, in the lighting system of the related embodiment of the present invention, due to being arranged additional two groups The output of light source is arranged with reinforcement original respectively with excitated fluorescent powder in light source, thus the inner space of lighting system properly with Reinforce the light output of lighting system in such a way that light source is arranged in increase so that the component of lighting system configures compact, nothing It is reduced with space.
Although the present invention is disclosed as above with embodiment, however, it is not to limit the invention, any technical field Middle technical staff, without departing from the spirit and scope of the present invention, when can make a little change with retouching, therefore the present invention protection Subject to range ought be defined depending on appended claims.

Claims (10)

1. a kind of lighting system, which is characterized in that including:
First light source, exportable first light;
Second light source, exportable second light;
Third light source, exportable third light _;
4th light source, exportable 4th light;
First light guide is set between the light path of the second light source and the third light source;And
Second light guide is set between the light path of the third light source and the 4th light source;
First phosphor powder layer is set between the second light source and the light path of first light guide, first phosphor powder layer First light can be converted to the 5th light, second light can be converted to the 6th light, institute by first phosphor powder layer It states the 5th light and the 6th light is respectively provided with spectrum, and the multiple light of the 5th light and the 6th light The peak wavelength of spectrum is respectively interposed between 625 nanometers to 740 nanometers;
Wherein, the third light, the 4th light, the 5th light and the 6th light are defeated via second light guide Go out the lighting system.
2. lighting system according to claim 1, which is characterized in that first light, second light, described Three light and the 4th light are respectively provided with spectrum, and first light, second light, the third light and institute The peak wavelength for stating the multiple spectrum of the 4th light is respectively interposed between 400 nanometers to 475 nanometers.
3. lighting system according to claim 1, which is characterized in that the lighting system further includes the second phosphor powder layer, It is set in the light path of the third light source, the third light can be converted to the 7th light, institute by second phosphor powder layer State the 7th light have spectrum, and the peak wavelength of the spectrum of the 7th light between 495 nanometers to 570 nanometers it Between.
4. lighting system according to claim 2, which is characterized in that the lighting system further includes the 5th light source, can be defeated Go out the 8th light, the 8th light has spectrum, and the peak wavelength of the spectrum of the 8th light is between 400 nanometers To between 475 nanometers, second phosphor powder layer is set between the light path of the third light source and the 5th light source, described 8th light can be converted to the 9th light by the second phosphor powder layer, and the 9th light has spectrum, and the 9th light For the peak wavelength of the spectrum of line between 495 nanometers to 570 nanometers, first light guide can make the 9th light Pass through, second light guide can be such that the 9th light passes through, wherein the 9th light is defeated via second light guide Go out the lighting system.
5. lighting system according to claim 1, which is characterized in that first light, second light, described Three light and the 4th light are respectively provided with spectrum, and first light, second light, the third light and institute The peak wavelength for stating the multiple spectrum of the 4th light is respectively interposed between 400 nanometers to 475 nanometers, and the lighting system is also Including the second phosphor powder layer, it is set in the light path of the third light source, the third light reaches second phosphor powder layer, And be converted to the 7th light, the 7th light have spectrum, and the peak wavelength of the spectrum of the 7th light between Between 495 nanometers to 570 nanometers, first light guide and second light guide are dichronic mirror respectively, and described first is guide-lighting Part can reflect the 5th light and the 6th light and the 4th light and the 7th light can be made to pass through, and described Two light guides can reflect the 4th light and the 5th light, the 6th light and the 7th light can be made to pass through, Wherein described 4th light, the 5th light, the 6th light and the 7th light are guide-lighting via described first respectively Part exports the lighting system.
6. a kind of lighting system, which is characterized in that including:
First light-emitting component, exportable first light beam;
Second light-emitting component, exportable second light beam;
Third light-emitting component, exportable third light beam;
4th light-emitting component, exportable 4th light beam;
5th light-emitting component, exportable 5th light beam;
First phosphor powder layer is set between the light path of first light-emitting component and second light-emitting component;
Second phosphor powder layer is set between the light path of the third light-emitting component and the 4th light-emitting component;
First closing light part is set between the light path of first light-emitting component and second light-emitting component;
Second closing light part is set between the light path of the third light-emitting component and the 4th light-emitting component;
Wherein, first light beam enters first phosphor powder layer and excites the 6th light beam, and second light beam is via described First closing light part enters first phosphor powder layer and excites the 7th light beam;The third light beam enters second phosphor powder layer And excite the 8th light beam;4th light beam enters second phosphor powder layer via the second closing light part and excites the 9th light Beam;5th light beam, the 6th light beam, the 7th light beam, the 8th light beam and the 9th light beam are via described Second closing light part exports the lighting system;6th light beam and the 7th light beam are respectively provided with spectrum, and the described 6th The difference of the peak wavelength of the spectrum of light beam and the 7th light beam is less than 20 nanometers, the 8th light beam and the 9th light beam It is respectively provided with spectrum, and the difference of the peak wavelength of the spectrum of the 8th light beam and the 9th light beam is less than 20 nanometers.
7. lighting system according to claim 6, which is characterized in that first light beam, second light beam, described Three light beams, the 4th light beam, the 5th light beam, the 6th light beam, the 7th light beam, the 8th light beam and described 9th light beam is respectively provided with spectrum, first light beam, second light beam, the third light beam, the 4th light beam and institute The peak wavelength for stating the multiple spectrum of the 5th light beam is respectively interposed between 450 nanometers to 475 nanometers, the 6th light beam and The peak wavelength of the multiple spectrum of 7th light beam is respectively interposed between 625 nanometers to 740 nanometers, and the 8th light The peak wavelength of the multiple spectrum of beam and the 9th light beam is respectively interposed between 495 nanometers to 570 nanometers, and described first Closing light part and the second closing light part respectively include dichronic mirror, and the first closing light part can reflect the 5th light beam and can make institute It states the 6th light beam, the 7th light beam, the 8th light beam and the 9th light beam to pass through, and the second closing light part can reflect 5th light beam, the 6th light beam and the 7th light beam simultaneously can be such that the 8th light beam and the 9th light beam passes through.
8. lighting system according to claim 6, which is characterized in that first light beam, second light beam, described Three light beams, the 4th light beam, the 5th light beam, the 6th light beam, the 7th light beam, the 8th light beam and described 9th light beam is respectively provided with spectrum, first light beam, second light beam, the third light beam, the 4th light beam and institute The peak wavelength for stating the multiple spectrum of the 5th light beam is respectively interposed between 450 nanometers to 475 nanometers, the 6th light beam and The peak wavelength of the multiple spectrum of 7th light beam is respectively interposed between 495 nanometers to 570 nanometers, and the 8th light The peak wavelength of the multiple spectrum of beam and the 9th light beam is respectively interposed between 625 nanometers to 740 nanometers, and described first Closing light part and the second closing light part respectively include dichronic mirror, and the first closing light part can reflect the 5th light beam and can make institute It states the 6th light beam, the 7th light beam, the 8th light beam and the 9th light beam to pass through, and the second closing light part can reflect 8th light beam and the 9th light beam simultaneously can be such that the 5th light beam, the 6th light beam and the 7th light beam passes through.
9. lighting system according to claim 6, which is characterized in that first light beam, second light beam, described Three light beams, the 4th light beam and the 5th light beam are respectively provided with spectrum, and first light beam, second light beam, institute The peak wavelength for stating the multiple spectrum of third light beam, the 4th light beam and the 5th light beam is respectively interposed in 450 nanometers To between 475 nanometers.
10. lighting system according to claim 6, which is characterized in that the 6th light beam, the 7th light beam, described 8th light beam and the 9th light beam are respectively provided with spectrum, the multiple spectrum of the 6th light beam and the 7th light beam Peak wavelength is respectively fallen in first wavelength range, and the peak of the multiple spectrum of the 8th light beam and the 9th light beam Value wavelength is respectively fallen within the scope of second wave length, wherein wherein the one of the first wavelength range and the second wave length range A is 625 nanometers to 740 nanometers of range, and the other in which of the first wavelength range and the second wave length range For 495 nanometers to 570 nanometers of range.
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TWI731073B (en) 2021-06-21
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CN113296341A (en) 2021-08-24
CN113296341B (en) 2022-05-03

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