CN109696791A - Colour wheel, light-source system and display equipment - Google Patents
Colour wheel, light-source system and display equipment Download PDFInfo
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- CN109696791A CN109696791A CN201710994175.2A CN201710994175A CN109696791A CN 109696791 A CN109696791 A CN 109696791A CN 201710994175 A CN201710994175 A CN 201710994175A CN 109696791 A CN109696791 A CN 109696791A
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- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
- G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
-
- 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
-
- 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
- G03B21/2006—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
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Astronomy & Astrophysics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Projection Apparatus (AREA)
Abstract
The present invention relates to a kind of colour wheel, light-source system and display equipment.The light-source system includes excitation light source, supplement light source and colour wheel, the excitation light source is for issuing exciting light, the supplement light source is for issuing supplement light, the colour wheel includes at least two sectional areas along the circumferential direction set gradually, and at least two sectional area includes the first sectional area and the second sectional area set gradually along the circumferencial direction；The colour wheel further includes supplement region, the supplement region is set to the inner or outer side of first sectional area, first sectional area is for receiving the exciting light and issuing the first color of light, second sectional area is for receiving the exciting light and issuing the second color of light, for receiving the supplement light and issuing the supplement light, the supplement light and first color of light are same colour system in the supplement region.The light extraction efficiency of the light-source system is higher.
Description
Technical field
The present invention relates to a kind of colour wheel, light-source system and display equipment.
Background technique
Currently, all start to be more and more widely used laser source in display (such as projection field) and lighting area, due to
With energy density height, the small advantage of etendue, in high-luminance light source domain, laser source gradually replaced light bulb and
LED light source.And among these, light needed for being generated using first light source excitation stimulated light powder (such as blue laser excitation yellow by
Laser powder generates the light of white light or particular color) light-source system, with its light efficiency is high, stability is good, at low cost the advantages that becomes
The mainstream of application.
Fig. 1 and Fig. 2 is please referred to, Fig. 1 is a kind of structural schematic diagram of prior art light source system 100, and Fig. 2 is shown in Fig. 1
The structural schematic diagram of the colour wheel of light-source system 100.The light-source system 100 include blue laser light source 101, red LED light source 102,
First light splitting optical filter 103, second is divided optical filter 104, third light splitting optical filter 105, colour wheel 106, reflecting mirror 107 and even light
Stick 108.The colour wheel 106 includes two sectional areas, respectively green fluorescence section 1061 and saturating blue segment 1062, wherein institute
It states green fluorescence section 1061 and the first section 1063 and the second section 1064 can be divided into, it will be understood that firstth area
Section 1063 is to divide for ease of description with second section 1064, but in fact, the first section on the colour wheel 106
1063 and second do not need have actual division indentation between section 1064.
When the light-source system 100 works, the colour wheel 106 is rotated along central shaft, so that the green of the colour wheel 106
Fluorescence section 1061 and saturating blue segment 1062 are periodically located at the optical path where the blue laser that the blue laser light source 101 issues
On, the time (an also referred to as colour wheel period) that the colour wheel 106 rotates one week is divided into three periods: t1, t2 and t3.
The t1 period be the optical path that the colour wheel 106 blue segment 1062 in one week of rotation is located at blue laser when
Section；Within the t1 period, the indigo plant laser light source 101 is opened, and the red LED light source 102 is closed, blue laser transmission described the
The saturating blue segment 1062 of one light splitting optical filter 103 and the transmission colour wheel 106 is reflected by the reflecting mirror 107, further thoroughly
The third light splitting optical filter 105 is penetrated, and then enters the optical tunnel 108.
The t2 period is the first section 1063 of the colour wheel 106 green fluorescence section 1061 in one week of rotation
In the period of the optical path of blue laser；Within the t2 period, the indigo plant laser light source 101 is opened, the red LED light source 102 is closed, blue
The green fluorescence powder of first section 1063 described in laser excitation generates green fluorescence.And first section 1063 reflects green fluorescence
The first light splitting optical filter 103 is returned, the first light splitting optical filter 103 reflects green fluorescence, and green fluorescence is further through described the
Two light splitting optical filters 104, third light splitting optical filter 105 reflect, and then enter the optical tunnel 108.
The t3 period is the second section 1064 of the colour wheel 106 green fluorescence section 1061 in one week of rotation
In the period of the optical path of blue laser.Within the t3 period, the indigo plant laser light source 101 is closed, the red LED light source 102 is opened.It is red
LED light transmission the second light splitting optical filter 104, and further reflected through third light splitting optical filter 105, and then enter institute
State optical tunnel 108.Wherein, the two neighboring period of t1, t2 and t3 cannot not can be overlappingly and do not have it is spaced, certainly, adjacent two
There can also be fraction of overlapping or fraction of interval between a period.
It is appreciated that the light-source system 100 can also include several relay lens, can be set in the blue laser light
Source 101 and first light splitting optical filter 103 between, it is described first light splitting optical filter 103 and colour wheel 106 between, it is described first light splitting
Between optical filter 103 and the second light splitting optical filter 104, between the reflecting mirror 107 and third light splitting optical filter 105, described the
Between two light splitting optical filters 104 and third light splitting optical filter 105, third light splitting optical filter 105 and the optical tunnel 108 it
Between, for being collected, arranging to light, adjust, details are not described herein again its specific location, structure and principle.
Timing according to above-mentioned t1, t2 and t3 is it is found that in the light-source system 100, the second section of the colour wheel 106
1064 be it is idle, do not generate any light, therefore the light extraction efficiency of entire light-source system 100 is not high, the overall brightness of system
Also not enough.
Summary of the invention
Against the above technical problems, it is necessary to which light-source system and display equipment that one kind can improve the above problem are provided.
A kind of light-source system comprising excitation light source, supplement light source and colour wheel, the excitation light source is for issuing excitation
Light, for the supplement light source for issuing supplement light, the colour wheel includes at least two segment identifiers along the circumferential direction set gradually
Domain and supplement region, at least two sectional area include the first sectional area set gradually along the circumferencial direction and the
Two-section region, the supplement region are set to the inner or outer side of first sectional area, and first sectional area is used
In receiving the exciting light and issuing the first color of light, second sectional area is for receiving the exciting light and issuing second
Color of light, the supplement region is for receiving the supplement light and issuing the supplement light, the supplement light and first face
Coloured light is same colour system.
A kind of display equipment comprising light-source system, the light-source system include excitation light source, supplement light source and colour wheel,
The excitation light source includes along the circumferential direction for issuing supplement light, the colour wheel for issuing exciting light, the supplement light source
At least two sectional areas that set gradually and supplement region, at least two sectional area include along the circumferencial direction according to
The first sectional area and the second sectional area of secondary setting, it is described supplement region be set to first sectional area inside or
Outside, for receiving the exciting light and issuing the first color of light, second sectional area is used for first sectional area
It receives the exciting light and issues the second color of light, the supplement region is for receiving the supplement light and issuing the supplement
Light, the supplement light and first color of light are same colour system.
A kind of colour wheel comprising at least two sectional areas that along the circumferential direction set gradually and supplement region, it is described extremely
Few two sectional areas include the first sectional area and the second sectional area set gradually along the circumferencial direction, the supplement
Region is set to the inner or outer side of first sectional area, and first sectional area is for receiving exciting light and issuing the
One color of light, for receiving the exciting light and issuing the second color of light, the supplement region is used for second sectional area
It receives supplement light and issues the supplement light, the supplement light and first color of light are same colour system.
Compared with prior art, using in the light-source system of the colour wheel and display equipment, the supplement region is set
It is placed in the inner or outer side of first sectional area, peripherally disposed each sectional area and position can be made full use of
Supplement region on the inside or outside of sectional area improves the light-source system using the colour wheel and shows the light extraction efficiency of equipment
And overall brightness.Further, the first color that the supplement light and first sectional area that the supplement region issues issue
Light is same colour system, can further supplement first color of light, and improvement lacks unfavorable existing caused by first color of light
As.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of prior art light source system.
Fig. 2 is the structural schematic diagram of the colour wheel of light-source system shown in Fig. 1.
Fig. 3 is the structural schematic diagram of the light-source system of first embodiment of the invention.
Fig. 4 is the structural schematic diagram of the colour wheel of light-source system shown in Fig. 3.
Fig. 5 is light path schematic diagram of the light-source system shown in Fig. 3 in the first period.
Fig. 6 is light path schematic diagram of the light-source system shown in Fig. 3 in the second period.
Fig. 7 is light path schematic diagram of the light-source system shown in Fig. 3 in the third period.
Fig. 8 is light path schematic diagram of the light-source system in the third period of second embodiment of the invention.
Fig. 9 is the structural schematic diagram of the light splitting Multiplexing apparatus of light-source system shown in Fig. 8.
Figure 10 is the exciting light of the light-source system of second embodiment of the invention and the light path principle schematic diagram of supplement light.
Figure 11 is light path schematic diagram of the light-source system in the third period of third embodiment of the invention.
Figure 12 is the structural schematic diagram of the light-source system of four embodiment of the invention.
Figure 13 is the structural schematic diagram of the colour wheel of light-source system shown in Figure 12.
Figure 14 is light path schematic diagram of the light-source system shown in Figure 12 in the third period.
Main element symbol description
Light-source system 200,300,400,500
Excitation light source 201,301,401,501
Supplement light source 202,302,502
It is divided Multiplexing apparatus 203,303,403,503
Guide device 204,304,404,504
Colour wheel 206,306,506
Optical channel 207,307,407 out
Dodging device 208,308,408
Relay lens 209
Condenser lens 210
Sectional area 206a, 506a
Supplement region 206b, 506b
Other regions 206c, 506c
First sectional area R
Second sectional area B
Third sectional area G
First reflecting element 204a
Second reflecting element 204b, 404b
Third reflecting element 204c, 404c
First area 303a
Second area 303b
Second light splitting optical filter 404d
First reflecting mirror 404e
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Referring to Fig. 1, Fig. 1 is a kind of structural schematic diagram of prior art light source system 200.The light-source system 200 wraps
Include excitation light source 201, supplement light source 202, colour wheel 206, light splitting Multiplexing apparatus 203, guide device 204 and dodging device 208.
The excitation light source 201 can be semiconductor diode or half for issuing exciting light, the excitation light source 201
Conductor diode array, the semiconductor diode array can be laser diode (LD) etc..The exciting light can be blue
Light, purple light or ultraviolet light etc., but be not limited with above-mentioned.In present embodiment, the excitation light source 201 is blue laser
Light source (such as blue laser diode), for issuing blue laser as the exciting light.
The supplement light source 202 can be semiconductor diode or half for issuing supplement light, the supplement light source 202
Conductor diode array, the semiconductor diode array can be laser diode (LD) etc..The supplement light source 202 can be with
For red laser light source (such as red laser diode), the supplement light can be red laser, but be not limited to red laser, this
It is mainly illustrated using the supplement light as red laser in embodiment, it will be appreciated that in change embodiment, institute
Stating supplement light may be green light, such as green laser；Or the supplement light is the sodium yellow comprising red light ingredient, orange
Light, purplish red light etc..
Referring to Fig. 2, Fig. 2 is the structural schematic diagram of the colour wheel of light-source system 200 shown in Fig. 1, the colour wheel 206 includes edge
At least two sectional area 206a and supplement region 206b that circumferencial direction is set gradually.Wherein, at least two segment identifier
Domain 206a surrounds a circle ring area, and at least two sectional areas 206a surrounds a circle ring area, each sectional area 206a
It is all partial circle region.
In present embodiment, at least two sectional areas 206a includes first set gradually along the circumferencial direction
Sectional area R, the second sectional area B and third sectional area G, wherein each sectional area 206a is for projecting a kind of color
Light, so that described three sectional areas R, G, B can go out three kinds of color of light (such as three kinds of color of light of RGB) with cascode.But it can be with
Understand, in change embodiment, at least two sectional areas 206a includes two set gradually along the circumferencial direction
A sectional area, wherein each sectional area 206a is used to project a kind of color of light, so that described two sectional areas can be total to
Project two kinds of color of light (such as blue light and sodium yellow).
Further, in present embodiment, the supplement region 206b is set to the inside of the first sectional area R,
The supplement region 206b is also partial circle region, and the supplement region 206b has identical with the first sectional area R
The center of circle, and preferably, the supplement region 206b and the first sectional area R central angle having the same.The colour wheel
206 can also be peripherally disposed including other regions 206c, other regions 206c and the supplement region 206b, and
Other regions 206c and the supplement region 206b surround circle ring area, it will be understood that other regions 206c can be with
The idle area for not issuing each color of light, as described in not receiving supplement light and the exciting light and do not issue yet each color of light and
The region of supplement light in other change embodiments, also can use other regions 206c and play optical filtering, dissipate certainly
The effects of light, is not limited with above-mentioned.
The first sectional area R is for receiving the exciting light and issuing the first color of light, the first sectional area R
On can be set the first fluorescent material, such as red fluorescence material, first fluorescent material receives the excitation light source 201 and sends out
Exciting light out simultaneously generates first color of light (such as red light).The first sectional area R is transmission-type sectional area,
That is, the side of the first sectional area R receives the exciting light that the excitation light source 201 issues, first segment identifier
The other side of domain R issues first color of light to the guide device 204.However, it will be understood that in change embodiment
In, the first sectional area R can be reflective sectional area, and the side of the first sectional area R can receive described
It is divided the exciting light that Multiplexing apparatus 203 issues, and the institute that the side of the first sectional area R can also generate and issue
State the first color of light.
The second sectional area B is for receiving the exciting light and issuing the second color of light, specifically, described second point
Section region B is provided with scattering material, and the second sectional area B is for being scattered the exciting light and by the institute after scattering
Exciting light is stated to issue as second color of light.The second sectional area B is transmission-type sectional area, i.e., second point described
The side of section region B receives the exciting light that the excitation light source 201 issues, the other side hair of the second sectional area B
Second color of light is to the guide device 204 out.However, it will be understood that in change embodiment, second segmentation
Region B may be reflective sectional area, and the side of such as the second sectional area B can receive the light splitting Multiplexing apparatus
The exciting light issued, and second color of light that the side of the second sectional area B can be sent out.
The third sectional area G receives the exciting light and issues third color of light, and the third sectional area G is equipped with
Second fluorescent material, such as green fluorescent material, second fluorescent material receive the exciting light and generate third color of light (such as
Green light).The third sectional area G is reflective sectional area, i.e., the side of the described third sectional area G receives described sharp
The exciting light that light emitting source 201 issues, the side of the third sectional area G, which also generates, issues the third color of light.But
It is, it will be understood that in change embodiment, the third sectional area may be transmission-type sectional area, and such as described the
The side of three sectional area G can receive the exciting light that the light splitting Multiplexing apparatus 203 issues, and the third segment identifier
The third color of light that the other side of domain G can be sent out.
The supplement region 206b is for receiving the supplement light and issuing the supplement light, the supplement light and described the
One color of light is same colour system, wherein the same colour system can refer to the supplement light and the first color of light spectral region
There is overlapping but different.Specifically, in present embodiment, the supplement region 206b can be transmission region, and being used for will
The supplement light that the supplement light source 202 issues is transmitted through the guide device.It is appreciated that the supplement light and first face
Coloured light is same colour system.In present embodiment, the supplement light and first color of light are same colour system, first color
Light is red light (such as red fluorescence), and second color of light is blue light, and the third color of light is green light (as green is glimmering
Light), the supplement light is red laser.
The light splitting Multiplexing apparatus 203 is located at the exciting light and the supplement light source 202 hair of the excitation light source 201 sending
In the optical path of supplement light out, exciting light and the supplement that the light splitting Multiplexing apparatus 203 issues the excitation light source 201
The supplement light that light source 202 issues is guided to the colour wheel.In present embodiment, the excitation light source 201 and the supplement light source
202 are respectively positioned on the same side of the light splitting Multiplexing apparatus 203, and the light splitting Multiplexing apparatus 203 issues the excitation light source 201
Exciting light and it is described supplement light source 202 issue supplement light reflex to the colour wheel 206.Specifically, the light splitting light combination
Device 203 can be the first light splitting optical filter, and the first light splitting optical filter can reflect first color of light, the second color
Light, the supplement light, and transmit the third color of light.Specifically, the light splitting Multiplexing apparatus 203 also receives the colour wheel
The 206 a part of light (light that such as described colour wheel 206 reflects: the third color of light) issued, and the colour wheel 206 is issued
A part of light (such as described third color of light) guides (as transmitted) to optical channel 207 out.Further, the light splitting Multiplexing apparatus
203 also receive the light (such as described first color of light, the second color of light and the supplement light) that the guide device 204 guides and incite somebody to action
Light (such as described first color of light, the second color of light and the supplement light) guidance that the guide device 204 guides (as reflected)
To the optical channel 207 out.
The guide device 204 is used to receive another part light that the colour wheel 206 issues (such as the light of transmission: described the
One color of light, the second color of light and the supplement light), and by another part light (such as the light of transmission: first color
Light, the second color of light and the supplement light) guidance (as reflect) to the light splitting Multiplexing apparatus 203 far from the excitation light source
201 and the supplement light source 202 side so that the light splitting Multiplexing apparatus 203 is further by another part light (as saturating
The light penetrated: first color of light, the second color of light and the supplement light) guidance (as reflect) optical channel 207 out as described in.
The guide device 204 includes at least one reflecting element, at least one described reflecting element receives the colour wheel
The light that the colour wheel issues simultaneously is reflexed to the light splitting Multiplexing apparatus by 206 light issued.It is further, described that at least one is anti-
The quantity for penetrating element is at least two, and between two adjacent reflecting elements and/or the guide device 204 is closed with the light splitting
Relay lens 209 is provided between electro-optical device 203.
In present embodiment, the guide device 204 includes the first reflecting element 204a, the second reflecting element 204b, the
Three reflecting element 204c, the first reflecting element 204a, the second reflecting element 204b, third reflecting element 204c are reflection
Mirror, the first reflecting element 204a, the second reflecting element 204b, third reflecting element 204c issue the colour wheel 206
Another part light (such as the light of transmission: first color of light, the second color of light and the supplement light) reflexes to the light splitting and closes
Electro-optical device 203 far from the excitation light source 201 and it is described supplement light source 202 side so that the light splitting Multiplexing apparatus 203 into
One step guides another part light to the optical channel 207 out.The first reflecting element 204a and the second reflecting element
Between 204b, between the second reflecting element 204b and the third reflecting element 204c and the third reflecting element
204c and the light splitting Multiplexing apparatus 203 can be provided with relay lens 209, and for being focused to light, shaping etc. adjusts
It is whole.The first reflecting element 204a, the second reflecting element 204b and third reflecting element 204c can be reflecting mirror.
The dodging device 208 can be even smooth square rod, correspond to the optical channel 207 out and be arranged, and for receiving institute
The light in optical channel 207 is stated out, to be supplied to optical-mechanical system (as projected after the even light of light progress by the optical channel 207 out
The optical-mechanical system of equipment) and then perform image display.It is appreciated that the light-source system 200 can also include several focuses thoroughly
Mirror 210, between the light splitting Multiplexing apparatus 203 and the colour wheel 206, between the colour wheel 206 and the guide device 204,
The condenser lens 210 can be set between the light splitting Multiplexing apparatus 203 and the dodging device 208, for light
The adjustment such as line is focused, shaping, the optical channel 207 out as described in being received via the condenser lens 210 dodging device 208
In light.
When the light-source system 200 works, the colour wheel 206 is rotated along central shaft, so that each point of the colour wheel 206
Section region B, R, G is periodically located in the optical path where the exciting light that the excitation light source 201 issues, the supplement region
206b be periodically located at it is described supplement light source 202 issue supplement light where optical path on.The colour wheel 206 is rotated one week
Time (an also referred to as colour wheel period) is divided into three periods: the first period t1, the second period t2 and third period t3 are tied below
Fig. 5, Fig. 6 and Fig. 7 is closed to be illustrated the light path principle of described light-source system 200 3 periods t1, t2 and t3.
First period t1 is that the colour wheel 206 second sectional area B in one week of rotation swashs positioned at described
Period in luminous optical path；Referring to Fig. 5, the excitation light source 201 is opened, the supplement in the first period t1
Light source 202 is closed, and the excitation light source issues exciting light (such as blue laser), and the exciting light is by the light splitting Multiplexing apparatus
Second sectional area B, the second sectional area B of 203 guidance (reflection) to the colour wheel is transmission-type sectional area, described
Scattering material on second sectional area B will be after exciting light scattering and using the exciting light after the scattering as described second
Color of light, and second color of light is transmitted through the guide device 204, so that three of the guide device 204
Reflecting element is further by second color of light guidance (as reflect) to the light splitting Multiplexing apparatus 203 far from the exciting light
Source 201 and the side of the supplement light source 202, so that the light splitting Multiplexing apparatus 203 guides second color of light to institute
Optical channel 207 is stated out, and enters the dodging device 208.As a result, in the first period t1, the light-source system 200 it is even
Electro-optical device 208 issues second color of light (such as blue light).
Second period t2 is that the colour wheel 206 third sectional area G in one week of rotation swashs positioned at described
Period in luminous optical path；Referring to Fig. 6, the excitation light source 201 is opened, the supplement in the second period t2
Light source 202 is closed, and the excitation light source 201 issues exciting light, and the exciting light is guided (such as by the light splitting Multiplexing apparatus 203
Reflection) to the second fluorescent material on third the sectional area G, the third sectional area G of the colour wheel 206, (such as green is glimmering
Luminescent material) by the excitation generation third color of light (such as green light), the third sectional area G is reflective
Sectional area, therefore the third sectional area G is also by the third reflected light back to the light splitting Multiplexing apparatus 203, institute
Light splitting Multiplexing apparatus 203 is stated the third color of light is further transmitted through the optical channel 207 out and enters the even light dress
Set 208.As a result, in the second period t2, the dodging device 208 of the light-source system 200 issues the third color of light (such as
Green light).
Third period t3 is that the colour wheel 206 first sectional area R in one week of rotation swashs positioned at described
Period in luminous optical path；Referring to Fig. 7, the excitation light source 201 is opened, the supplement in the third period t3
Light source 202 is also opened, and the excitation light source 201 issues exciting light, and the exciting light is guided by the light splitting Multiplexing apparatus 203
(as reflect) to the colour wheel first sectional area side, the first fluorescent material on first sectional area is (such as red
Color fluorescent material) by excitation generation first color of light (such as red light), the first sectional area R is
Formula sectional area is penetrated, and then the other side of the first sectional area R issues first color of light to the guide device
204, first color of light is reflexed to the light splitting Multiplexing apparatus 203 by the reflecting element of the guide device 204, and described point
First color of light is further reflexed to the optical channel 207 out and enters the dodging device by photosynthetic electro-optical device 203
208；Meanwhile the supplement light that the supplement light source 202 issues is guided (as reflected) by the light splitting Multiplexing apparatus 203 to the color
The supplement light is transmitted through the guide device 204 by the side of the supplement region 206b of wheel 206, the supplement region 206b,
The supplement light is reflexed to the light splitting Multiplexing apparatus 203, the light splitting light combination dress by the reflecting element of the guide device 204
203 are set the supplement light is further reflexed to the optical channel 207 out and enters the dodging device 208.As a result, described
Third period t3, the dodging device 208 of the light-source system 200 issue first color of light (red light, such as red fluorescence)
And the supplement light (red light: such as red laser).
Compared with prior art, in the light-source system 200 using the colour wheel 206, the supplement region 206b is set
It is placed in the inside of the first sectional area R, peripherally disposed each sectional area 206a and position can be made full use of
Supplement region 206b on the inside or outside of the first sectional area R improves going out for the light-source system 200 for using the colour wheel 206
Light efficiency and overall brightness.In detail, the excitation light source 201 is in the open state always within the colour wheel period, institute
State colour wheel 206 also there is no idle section, therefore technical solution compared to the prior art, light-source system 200 of the present invention and
Light extraction efficiency and brightness can be improved in colour wheel 206.
Further, the first face that the supplement light and the first sectional area R that the supplement region 206b is issued issue
Coloured light is same colour system, can further supplement first color of light, it is unfavorable caused by first color of light that improvement lacks
Phenomenon.The supplement region 206b and the first sectional area R central angle having the same, but also the supplement region
206b and the first sectional area R can be simultaneously emitted by the supplement light and first color of light, further increase light efficiency.
The exciting light and the supplement light source 202 that the light splitting Multiplexing apparatus 203 not only issues the excitation light source 201
The supplement light of sending is guided to the colour wheel 206, the side of the light splitting Multiplexing apparatus 203 colour wheel 206 is issued one
Part light is guided to the optical channel 207 out, what the other side for being divided Multiplexing apparatus 203 also issued the colour wheel 206
It guides via another part light that the guide device 204 guides to the optical channel 207 out, is closed so that passing through less light splitting
The light that the colour wheel 206 issues can be carried out light combination and be provided to out optical channel 207, therefore the light-source system by optical element
200 light path design is reasonable, element is compact, and light efficiency is higher.
Fig. 8 and Fig. 9 is please referred to, Fig. 8 is that optical path of the light-source system 300 of second embodiment of the invention in the third period is shown
It is intended to, Fig. 9 is the structural schematic diagram of the light splitting Multiplexing apparatus 303 of light-source system 300 shown in Fig. 8.The second embodiment
Light-source system 300 and the light-source system 200 of first embodiment are essentially identical, that is to say, that above-mentioned to first embodiment party
The description of the light-source system 200 of formula substantially can be adapted for the light-source system 300 of the second embodiment, the two it is main
The difference is that: light splitting the structure of Multiplexing apparatus 303, the structure of colour wheel 306, light-source system 300 third period t3 optical path not
Together.
Specifically, the light splitting Multiplexing apparatus 303 includes first area 303a and second area 303b.Firstth area
Domain 303a can be set in the periphery second area 303b, and specifically, the second area 303b can be located at described first
The center of region 303a, the second area 303b can be rectangular area, and the first area 303a can be straight-flanked ring area
Domain.The first area 303a receive the exciting light that excitation light source 301 issues and by the exciting light guide to it is described extremely
Few two sectional areas (such as the first sectional area, the second sectional area and third sectional area).Specifically, the first area
303a reflects the exciting light (such as blue light) and transmits the first color of light (such as red light) that the colour wheel 306 issues, described
First area 303a also transmits the third color of light (such as green light) that the colour wheel 306 issues.The second area 303b is received
The supplement light of the supplement sending of light source 302 simultaneously guides the supplement light to the supplement region, the second area 303b
It also receives the supplement light that guide device 304 issues and guides the supplement light to optical channel 307 out.Specifically, described
Second area 303b reflects the supplement light (such as described red laser), and the second area 303b also reflects second color
Light, the guide device 304 as described in second area 303b reflection are guided to the second color as described in the second area 303b
Light to it is described go out optical channel 307.
Referring to Fig. 2, the structure of the colour wheel 306 and the colour wheel 206 of first embodiment is essentially identical, the two it is main
Difference is that the first sectional area of the colour wheel 306 is reflective sectional area, specifically, first sectional area
Side receives the exciting light that the light splitting Multiplexing apparatus issues, and the side of first sectional area is also by the institute of generation
It states the first color of light and first color of light is reflexed into the light splitting Multiplexing apparatus 303, the light splitting Multiplexing apparatus 303 is also
First color of light is guided to the optical channel 307 out.
Further, based on the above explained light splitting Multiplexing apparatus 304 and and the colour wheel 306 structure, the
Three period t3, the excitation light source 301 and supplement light source 302 are opened, and the laser light source 301 issues exciting light to described the
One region 303a, the first area 303a guide the exciting light (as reflected) to the first segment identifier of the colour wheel 306
Domain, the first fluorescent material of first sectional area simultaneously excite and generate first color of light (such as red light: red glimmering
Light), first color of light is also reflexed to the second area of the light splitting Multiplexing apparatus 303 by first sectional area
303b, the second area 303b guide first color of light goes out optical channel 307 (such as transmission) as described in；Further,
The supplement light that the supplement light source 302 issues guide (as reflected) the extremely colour wheel 306 by the second area 303b
Region is supplemented, the supplement light is transmitted through the guide device 304, the guide device by the supplement region of the colour wheel 306
The supplement light is guided second area 303b (as reflected) to the light splitting Multiplexing apparatus 303 far from the supplement light by 304
The side in source 302, the supplement light guidance (such as reflection) that the second area 303b also guides the guide device 304 is as described in
Optical channel 307 out.
In the second embodiment, first sectional area is for receiving exciting light and generating the first color of light
Reflective sectional area, the light splitting Multiplexing apparatus 303 can be divided optical filter for region, equally can use along the circumferential direction
The light source system using the colour wheel is improved in each sectional area being arranged and the supplement region on the inside or outside of sectional area
The light extraction efficiency and overall brightness of system and display equipment.Further, the excitation light source 301 within the colour wheel period always
In the open state, idle section, therefore technical solution compared to the prior art, this hair is also not present in the colour wheel 306
Light extraction efficiency and brightness can be improved in bright light-source system 300 and colour wheel 306.
Further, the first color of light for issuing with first sectional area of supplement light that the supplement region issues is
Same colour system, can further supplement first color of light, and improvement lacks unfavorable phenomenon caused by first color of light.Institute
Supplement region and the first sectional area central angle having the same are stated, but also the supplement region and first segmentation
Region can be simultaneously emitted by the supplement light and first color of light, further increase light efficiency.
What the exciting light and the supplement light source that the light splitting Multiplexing apparatus 303 not only issues the excitation light source issued
Supplement light guides a part of light for issuing the colour wheel 306 to the colour wheel 306, the side of the light splitting Multiplexing apparatus 303
Guidance to it is described go out optical channel 307, it is described light splitting Multiplexing apparatus 303 the other side also by the colour wheel 306 issue via institute
Another part light for stating the guidance of guide device 304 is guided to the optical channel 307 out, so that passing through less light splitting light combination element
The light that the colour wheel 306 issues can be subjected to light combination and be provided to out optical channel, therefore the optical path of the light-source system 300 is set
Meter is reasonable, element is compact, and light efficiency is higher.
Further, referring to Fig. 10, Figure 10 be the light-source system 300 of second embodiment of the invention exciting light with
The light path principle schematic diagram of supplement light.In the second embodiment, due to due to the supplement light and exciting light incidence
It is different to the position of the colour wheel 306, therefore, the supplement light that is emitted from the colour wheel 306 and second color of light
Optical axis will not be overlapped, this will lead to the supplement light and the light beam of second color of light enters to out the even of optical channel 307
Its optical axis will not be overlapped when electro-optical device 308, will lead to optical-mechanical system in subsequent optical path and occur that the imaging is not clear or luminous energy
The phenomenon that waste, unfavorable phenomenon caused by not being overlapped for improvement because of the optical axis of the supplement light and second color of light, this hair
The bright light-source system 400 for further providing for third embodiment.
Figure 11 is please referred to, Figure 11 is that optical path of the light-source system 400 of third embodiment of the invention in the third period is illustrated
Figure.The light-source system 400 of the third embodiment and the light-source system 300 of second embodiment are essentially identical, that is to say, that
The description of the above-mentioned light-source system 300 to the second embodiment substantially can be adapted for the light of the third embodiment
Source system 400, the two main difference is that: the specific element of guide device 404 is different.Specifically, guide device 404
Including the light splitting optical filter 404d of the first reflecting mirror 404e and second, compared to second embodiment, the first reflecting mirror 404e
And second light splitting optical filter 404d substitution second embodiment in the first reflecting element.The second light splitting optical filter 404d connects
It receives second color of light of the second sectional area sending and reflects second color of light, the first reflecting mirror 404e connects
It receives the supplement light that the supplement region issues and reflects the supplement light, the second light splitting optical filter 404d reflection
The optical axis coincidence of second color of light and the supplement light of the first reflecting mirror 404e reflection.Specifically, described second
It is divided optical filter 404d and reflects second color of light and the transmission supplement light, the first reflecting mirror 404e is via described the
Two light splitting optical filter 404d receive the supplement light that the supplement region issues, and the first reflecting mirror 404e reflects described
Supplement light is further by the second light splitting optical filter 404d transmission.Second reflecting element 404b and third reflecting element 404c according to
The secondary supplement light for receiving the second light splitting optical filter 404d transmission and the second face of the second light splitting optical filter 404d reflection
The supplement light and second color of light guidance (as reflected) are simultaneously extremely divided Multiplexing apparatus 403 by coloured light, so that described point
Photosynthetic electro-optical device 403 guides the supplement light and second color of light to the optical channel 407 out.
In the third embodiment, by the light splitting optical filter 404d of the first reflecting mirror 404e and second, it can make
The optical axis for obtaining the supplement light and second color of light is adjusted to be overlapped, and then enters to out the dodging device of optical channel 407
The optical axis of the supplement light and second color of light when 408 can be overlapped, and then improve the optical-mechanical system in subsequent optical path
There is the phenomenon that the imaging is not clear or luminous energy wastes.
Figure 12 is please referred to, Figure 12 is the structural schematic diagram of the light-source system 500 of four embodiment of the invention.Described 4th
The light-source system 500 of embodiment and the light-source system 200 of first embodiment are essentially identical, that is to say, that above-mentioned to described
The description of the light-source system 200 of first embodiment substantially can be adapted for the light-source system 500 of the 4th embodiment,
The two main difference is that: the structure of colour wheel 506, the position of supplementary lighting sources 502, the optical path of third period are different.
Figure 13 is please referred to, Figure 13 is the structural schematic diagram of the colour wheel 506 of light-source system 500 shown in Figure 12.The colour wheel 506
With the colour wheel 206 of first embodiment main difference is that: the supplement region 506b and other regions 506c of the colour wheel 506
Positioned at the outside of sectional area 506a.Specifically, the supplement region 506b can be positioned at the outer of the first sectional area R
Side, the supplement region 506b and the first sectional area R central angle having the same.Other regions 506c is located at the
The outside of two-section region G and third sectional area B.
It is located at the first embodiment below excitation light source compared to supplementary lighting sources, in present embodiment, the light filling light
Source 502 can be located at the top of the excitation light source 501, please refer to Figure 14, in the third period, the supplementary lighting sources 502 are used for
It is described positioned at outer via the supplement light that the light splitting Multiplexing apparatus 503 is issued towards the supplement region 506b for being located at outside
The supplement region 506b of side further guides the supplement light to guide device 504.
It, equally can be with it is appreciated that the supplement region 506b of the colour wheel 506 is located at the outside of the sectional area 506a
Reach technical effect same as the first embodiment, details are not described herein again.
The present invention also provides a kind of display equipment, the display equipment can be applied to projector, LCD (Liquid
Crystal Display, liquid crystal display) display etc., the display equipment may include light-source system, spatial light modulator and
Projection lens, the light-source system is using the light supply apparatus 200,300,400,500 in above embodiment and its changes implementation
The light supply apparatus of mode.Light and the input image data modulation that the spatial light modulator is used to issue according to the light-source system
Image and export image light, the projection lens is used to be projected and show projected image according to described image light.Using upper
It states the light supply apparatus 200,300,400,500 in embodiment and its changes the light of the display equipment of the light supply apparatus of embodiment
Utilization rate is higher, and the color homogeneity of image is preferable.
Additionally, it is appreciated that the light supply apparatus 200,300,400,500 and its change in above embodiment of the present invention are real
The light supply apparatus for applying mode can be also used for stage lamp system, vehicle lighting system and operating theatre luminaire system etc., however it is not limited on
The display equipment stated.
Claims (19)
1. a kind of light-source system, it is characterised in that: the light-source system includes excitation light source, supplements light source and colour wheel, described to swash
Light emitting source includes along the circumferential direction successively setting for issuing supplement light, the colour wheel for issuing exciting light, the supplement light source
At least two sectional areas set, at least two sectional area include the first segmentation set gradually along the circumferencial direction
Region and the second sectional area；The colour wheel further includes supplement region, and the supplement region is set to first sectional area
Inner or outer side, first sectional area for receive the exciting light and issue the first color of light, it is described second segmentation
Region is for receiving the exciting light and issuing the second color of light, and the supplement region is for receiving the supplement light and issuing institute
Supplement light is stated, the supplement light and first color of light are same colour system.
2. light-source system as described in claim 1, it is characterised in that: the supplement region has with first sectional area
Identical central angle.
3. light-source system as described in claim 1, it is characterised in that: the colour wheel further includes other regions, other described areas
Domain and the supplement region are peripherally disposed, and other described regions and the supplement region form circle ring area.
4. light-source system as described in claim 1, it is characterised in that: the light-source system includes light splitting Multiplexing apparatus and guidance
Device, the supplement light that the light splitting Multiplexing apparatus is located at the exciting light of excitation light source sending and the supplement light source issues
In optical path, the supplement light that the exciting light and the supplement light source that the light splitting Multiplexing apparatus issues the excitation light source issue is divided
Not Yin Dao at least two sectional areas to the colour wheel and supplement region, the second color of light that second sectional area issues
Also via the guide means guide to the side far from the excitation light source of the light splitting Multiplexing apparatus, the light splitting light combination
Second color of light that device also issues the guide device is guided to optical channel out；What first sectional area issued
First color of light via the light splitting Multiplexing apparatus be provided to it is described go out optical channel or via the guide device and institute
It states light splitting Multiplexing apparatus and is provided to the optical channel out；The supplement light that the supplement region issues is via the guide device
And the light splitting Multiplexing apparatus is provided to the optical channel out.
5. light-source system as claimed in claim 4, it is characterised in that: the side of first sectional area receives the light splitting
The exciting light that Multiplexing apparatus issues, the other side of first sectional area issue first color of light to the guidance
Device, first color of light that the guide device issues first sectional area are guided to the light splitting Multiplexing apparatus
Side far from the excitation light source, first color of light that the light splitting Multiplexing apparatus issues the guide device guide
To the optical channel out.
6. light-source system as claimed in claim 4, it is characterised in that: the side of first sectional area receives the light splitting
The exciting light that Multiplexing apparatus issues, and first color of light of generation is also reflected in the side of first sectional area
To the light splitting Multiplexing apparatus, the light splitting Multiplexing apparatus also guides first color of light to the optical channel out.
7. light-source system as claimed in claim 6, it is characterised in that: the light splitting Multiplexing apparatus includes first area and second
Region, the first area receive the exciting light that the excitation light source issues and by the exciting light guide to it is described at least
Two sectional areas, the second area receive it is described supplement light source issue the supplement light and by the supplement light guide to
The supplement region, the second area also receive the supplement light that the guide device issues and guide the supplement light
To the optical channel out.
8. light-source system as claimed in claim 4, it is characterised in that: the side in the supplement region receives the light splitting light combination
The supplement light is also provided to the guide device, institute by the other side of the supplement light that device issues, the supplement region
Guide device is stated to guide the supplement light that the supplement region issues to the light splitting Multiplexing apparatus far from the exciting light
The side in source, the supplement light that the light splitting Multiplexing apparatus issues the guide device are guided to the optical channel out.
9. light-source system as claimed in claim 4, it is characterised in that: at least two sectional area further includes third segmentation
Region, first sectional area, the second sectional area and third sectional area along the circumferential direction connect to forming circle ring area, institute
It states third sectional area to receive the exciting light and issue third color of light, the third color of light is provided to the light splitting and closes
Electro-optical device, the light splitting Multiplexing apparatus also guide the third color of light to the optical channel out.
10. light-source system as claimed in claim 9, it is characterised in that:
In the first period, the excitation light source issues exciting light, and the exciting light is guided by the light splitting Multiplexing apparatus to described
Second sectional area of colour wheel, second sectional area issue second color of light by the guide means guide to described
It is divided Multiplexing apparatus, the light splitting Multiplexing apparatus issues second color of light to the optical channel out；
In the second period, the excitation light source issues exciting light, and the exciting light is guided by the light splitting Multiplexing apparatus to described
The third sectional area of colour wheel, the third sectional area sending third color of light are described to the light splitting Multiplexing apparatus
It is divided Multiplexing apparatus and issues the third color of light to the optical channel out；
In the third period, the excitation light source issues the exciting light, the exciting light by the light splitting Multiplexing apparatus guide to
First sectional area of the colour wheel, first color of light that first sectional area issues are filled via the light splitting light combination
It sets and is provided to the optical channel out or is provided to the optical channel out via the guide device and the light splitting Multiplexing apparatus,
The supplement light source also issues the supplement light, and the supplement light is guided by the light splitting Multiplexing apparatus to the supplement region,
The supplement light that the supplement region issues is directed to the light splitting Multiplexing apparatus through the guide device and swashs far from described
The side of light emitting source, the supplement light that the light splitting Multiplexing apparatus issues the guide device, which is guided to the light out, leads to
Road.
11. light-source system as claimed in claim 9, it is characterised in that: the light splitting Multiplexing apparatus is the first light splitting optical filter,
The first light splitting optical filter receives the supplement light that the exciting light that the excitation light source issues and the supplement light source issue and will
The exciting light and the supplement light reflex to the colour wheel, what the first light splitting optical filter also issued the guide device
Second color of light and the supplement light reflex to the optical channel out, first face that first sectional area issues
Coloured light goes out optical channel or via the guide device to be provided to described the via the first light splitting filter transmission to described
One is divided optical filter and reflexes to the optical channel out through the first light splitting optical filter；Is produced from the side of the third sectional area
It gives birth to the third color of light and the third color of light is reflexed into the first light splitting optical filter, the first light splitting optical filter
The third color of light is also transmitted through the optical channel out.
12. light-source system as claimed in claim 9, it is characterised in that: second sectional area is provided with scattering material, institute
The second sectional area is stated for being scattered to the exciting light and using the exciting light after scattering as second color
Light issues；First sectional area is equipped with the first fluorescent material, and first fluorescent material receives the exciting light and generates
First color of light；The third sectional area is equipped with the second fluorescent material, and second fluorescent material receives the excitation
Light simultaneously generates third color of light.
13. light-source system as claimed in claim 9, it is characterised in that: first color of light is red light, second face
Coloured light is blue light, and the third color of light is green light.
14. light-source system as claimed in claim 13, it is characterised in that: the excitation light source is blue laser light source, described
Supplement light source is red laser light source.
15. light-source system as claimed in claim 4, it is characterised in that: the guide device includes at least one reflecting element,
At least one described reflecting element receives the second color of light and/or first segment identifier that second sectional area issues
The supplement light of the first color of light and supplement region sending that domain issues simultaneously reflexes to the light splitting Multiplexing apparatus.
16. light-source system as claimed in claim 14, it is characterised in that: the guide device includes the first reflecting mirror and second
It is divided optical filter, the second light splitting optical filter receives second color of light that second sectional area issues and will be described
The reflection of second color of light, first reflecting mirror receive the supplement light and supplement light is anti-that the supplement region issues
It penetrates, the light of the supplement light of second color of light and first reflecting mirror reflection of the second light splitting optical filter reflection
Overlapping of axles.
17. light-source system as claimed in claim 16, it is characterised in that: first reflecting mirror is filtered via second light splitting
Mating plate receives the supplement light that the supplement region issues.
18. a kind of display equipment, the display equipment includes light-source system, it is characterised in that: the light-source system uses right
It is required that light-source system described in 1-17 any one.
19. a kind of colour wheel, it is characterised in that: the colour wheel includes at least two sectional areas along the circumferential direction set gradually,
At least two sectional area includes the first sectional area and the second sectional area set gradually along the circumferencial direction, institute
Stating colour wheel further includes supplement region, the inner or outer side for supplementing region and being set to first sectional area, and described first
For sectional area for receiving exciting light and issuing the first color of light, second sectional area is concurrent for receiving the exciting light
Second color of light out, the supplement region is for receiving supplement light and issuing the supplement light, the supplement light and described first
Color of light is same colour system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994175.2A CN109696791B (en) | 2017-10-23 | 2017-10-23 | Color wheel, light source system and display device |
| PCT/CN2018/071423 WO2019080369A1 (en) | 2017-10-23 | 2018-01-04 | Color wheel, light source system, and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994175.2A CN109696791B (en) | 2017-10-23 | 2017-10-23 | Color wheel, light source system and display device |
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| CN109696791A true CN109696791A (en) | 2019-04-30 |
| CN109696791B CN109696791B (en) | 2021-08-03 |
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| WO (1) | WO2019080369A1 (en) |
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| JP4711156B2 (en) * | 2009-06-30 | 2011-06-29 | カシオ計算機株式会社 | Light source device and projector |
| CN104991406B (en) * | 2011-11-10 | 2017-01-25 | 深圳市光峰光电技术有限公司 | Light source system, lighting device and projection device |
| CN102722073B (en) * | 2011-12-18 | 2014-12-31 | 深圳市光峰光电技术有限公司 | Light source system and projector |
| CN106200235B (en) * | 2016-07-22 | 2019-01-25 | 明基智能科技（上海）有限公司 | Projector and the projecting method for applying it |
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| CN104020633A (en) * | 2013-02-28 | 2014-09-03 | 深圳市绎立锐光科技开发有限公司 | Light emitting device and related projection system |
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| Publication number | Publication date |
|---|---|
| WO2019080369A1 (en) | 2019-05-02 |
| CN109696791B (en) | 2021-08-03 |
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