CN209103091U - A kind of mixing light source for projection - Google Patents
A kind of mixing light source for projection Download PDFInfo
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- CN209103091U CN209103091U CN201822240946.1U CN201822240946U CN209103091U CN 209103091 U CN209103091 U CN 209103091U CN 201822240946 U CN201822240946 U CN 201822240946U CN 209103091 U CN209103091 U CN 209103091U
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Abstract
The utility model discloses a kind of mixing light source for projection, includes: an excitation light source, to generate an excitation beam；One light splitting wheel, it is rotatably arranged on the path of the excitation beam, the light splitting wheel has one first echo area and one first penetrating region, first echo area is to reflect the excitation beam, first penetrating region is used to penetrate for the excitation beam, it is all the way the first excitation beam to which excitation beam is divided into two-way, another way is excitation projecting beam and is directed to a projecting direction；One fluorophor is arranged on the path of first excitation beam, which is excited by first excitation beam generates one first projecting beam and be directed to the projecting direction；An and second light source, to generate one second projecting beam, second projecting beam is directed to the projecting direction, the excitation projecting beam, first projecting beam and second projecting beam it is photochromic different, and selected in blue, green and red.
Description
Technical field
The present invention is related with a kind of light source, especially with regard to the mixing light source for projection.
Background technique
Press, projector (Projector) be it is a kind of by light source cooperation filter, fluorescence colour wheel (Phosphor Wheel,
PW) and the coloured light of different colours is projected to the dress that display equipment shows image by the light path system of the optical elements composition such as spectroscope
It sets.
And different light sources or the design of different light path systems are other than the volume and cost that will affect projector.It is more straight
Ground connection also will affect the brightness and color representation for finally showing image.
In terms of light source, high-pressure sodium lamp light source (Ultra High Performance, UHP) is that developing history is most long
Light source, has the advantages that at low cost and of high brightness, but service life is short and needs to regularly replace.
With the development of semiconductor industry technology and skillful, there is excellent color representation, low noise, small in size and long-lived
The LED source (Light Emitting Diode) of life advantage then gradually replaces the market of high-pressure sodium lamp light source.So
And LED source is limited to the light emitting angle of its limited areal, therefore the brightness of its output is also restrained.
And laser diode light source (Laser Diode) then has the advantages that brightness is high, the service life is long and calorific value is minimum.Cause
This, is the first choice of current various light sources for life of product, image brilliance and color representation.However, wide colour gamut in order to obtain
Light source framework, use the laser diode of three primary colors (red, green and blue) as the cost of the projector of light source extremely
High, receiving degree in the market is not high.It can be seen that Findings and taking into account for cost problem lack for one wait improve.
Summary of the invention
Cost can be reduced in view of the deficiencies of the prior art, it is an object of the present invention to provide one kind and guarantees the throwing of the intensity of light source
Shadow machine mixing light source.
The purpose of the present invention is realized by following technical solution:
A kind of mixing light source for projection, characterized by comprising:
One excitation light source, to generate an excitation beam；
One light splitting wheel, be rotatably arranged on the path of the excitation beam, the light splitting wheel have one first echo area with
And one first penetrating region, to reflect the excitation beam, which is used to wear for the excitation beam for first echo area
It thoroughly, is all the way the first excitation beam so that excitation beam is divided into two-way, another way is excitation projecting beam and is directed to a throwing
Penetrate direction；
One fluorophor is arranged on the path of first excitation beam, which is excited by first excitation beam and produced
Raw one first projecting beam is simultaneously directed to the projecting direction；And
One second light source, to generate one second projecting beam, which is directed to the projecting direction, this swashs
The photochromic different of projecting beam, first projecting beam and second projecting beam is sent out, and blue, green and red
It is selected in color.
Further, which penetrates first penetrating region and forms the first excitation beam, the excitation beam by this
One echo area reflects to form excitation projecting beam.
Further, which is arranged on the path of the first projecting beam and excitation beam, and this first is penetrated
Area penetrates for excitation beam and reflects the first projecting beam.
Further, which includes reinforcement light source and the second LED light source, and reinforcement light source generates reinforcement light beam, the
Two LED light sources generate the second LED beam, and reinforcement light beam and the second LED beam synthesize second projecting beam.
Further, which further includes the second penetrating region, which is arranged on the path of the reinforcement light beam, should
Second penetrating region is passed through for the reinforcement light beam.
Further, which is laser light source.
It further, further include the first optical filter, the first reflecting mirror, the second reflecting mirror, the second optical filter, excitation projection
Quilt after light beam is successively reflected by the first optical filter, the first reflecting mirror reflects, the second reflecting mirror reflects and the second filter transmission
It is oriented to the projecting direction, successively guiding should after first penetrating region reflection, the reflection of the second optical filter for first projecting beam
Projecting direction, second projecting beam are oriented to the projecting direction after the reflection of the second optical filter.
Further, which penetrates first penetrating region and forms excitation projecting beam, the excitation beam by this
One echo area reflects to form the first excitation beam.
It further, further include third optical filter, the 4th optical filter and third reflecting mirror, which successively passes through
It is oriented to the projecting direction after crossing the reflection of third optical filter, the 4th filter transmission, it is anti-that which successively passes through third
Penetrate mirror reflection, be oriented to the projecting direction after the 4th filter transmission, second projecting beam successively pass through third filter transmission,
The projecting direction is oriented to after 4th filter transmission.
Further, one first LED chip is further included, first LED chip and the fluorophor constitute the first LED light source,
First LED chip generates one first LED beam, which is swashed by first LED beam and the first excitation beam simultaneously
Hair generates one first projecting beam and is directed to the projecting direction.
Further, which is ceramic phosphor.
Further, the photochromic of the excitation projecting beam, first projecting beam and second projecting beam is respectively
Blue, green and red.
Further, which is disc structure, first echo area and first penetrating region along the first light splitting wheel
Contoured profile.
The invention has the following beneficial effects:
The excitation light source of high brightness is divided into two-way by light splitting wheel by the present invention, is directed to all the way as excitation projecting beam
Projecting direction, another way generate the first projecting beam as the fluorophor of first the first LED light source of excitation beam deexcitation, in this way
One excitation light source can generate the high-strength light of two kinds of colors, and the high-strength light of two kinds of colors needs two in the prior art
High-intensitive light source substantially reduces cost to save a high-intensitive light source；Other first projecting beam is by the first LED
Light beam and the common excited fluophor of the first excitation beam generate, and can greatly improve the intensity of the first projecting beam, and first
The cost of LED light source is relative to high-intensitive light source with regard to much lower.
Detailed description of the invention
Fig. 1 is system architecture diagram of the present invention for the mixing light source embodiment one of projection.
Fig. 2 is the schematic diagram of the light splitting wheel in Fig. 1 example.
Fig. 3 is system architecture diagram of the present invention for the mixing light source embodiment two of projection.
Fig. 4 is system architecture diagram of the present invention for the mixing light source embodiment three of projection.
Fig. 5 is the schematic diagram of the second light splitting wheel in Fig. 4 example.
Specific embodiment
Embodiment one: please refer to Fig. 1 to Fig. 2.Fig. 1 is embodiment one of the present invention for the mixing light source of projection
Architecture diagram；Fig. 2 is the schematic diagram of light splitting wheel 5 in Fig. 1 example.
The mixing light source for projection that Fig. 1 is painted is to light beam of light combination needed for generating the optical projection system D of projector.It throws
Shadow system D can be, but not limited to be digital light processing optical projection system (Digital Light Processing, DLP), liquid crystal
Display projection system (Liquid Crystal Display, LCD) or liquid crystal flip optical projection system (Liquid Crystal
on Silicon,LCOS).And light beam of light combination needed for optical projection system D is by feux rouges, green light and blue photosynthetic white light.
In embodiment one, refering to fig. 1, the mixing light source for projection includes excitation light source 1, light splitting the 5, first LED light of wheel
Source 3, the second LED light source 4 and reinforcement light source 2.The excitation beam B1 that excitation light source 1 generates can be split, and 5 reflection of wheel is direct to be made
For excitation projecting beam B output, and light splitting wheel 5 can be penetrated and be used as first the first LED light source of excitation beam B2 directive 3, excitation the
The excitation beam of other colors of one LED light source 3 generation.The fluorescent powder of first LED light source 3 is by the first LED chip institute of itself
The LED chip light beam of sending and the first excitation beam B2 are excited by both direction respectively, excite the fluorescent powder of the first LED light source 3
Luminous intensity increase, and excite emitting brightness it is higher he plant the projecting beam of color.Whereby, conjunction is provided by excitation light source 1
Excitation projecting beam B needed for light light beam, other kind of color needed for light beam of light combination can then be excited by the first excitation beam B2
The LED beam that first LED light source 3 and the second LED light source 4 generate itself is overlapped and generates, and the luminous intensity of the second LED light source 4 is not
Foot is supplied by reinforcement light source 2.
In an embodiment for the mixing light source of projection, excitation light source 1 can be laser light source or LED light source.Implement
In example one, for the requirement for taking into account brightness and cost, total system system uses single a laser light source as excitation light source 1.And
Being developed to when brightness is equivalent to laser light source in the technology of LED light source can also be used LED light source as excitation light source 1.
In this, laser light source can be but not limited to gas laser, solid state laser, optical fiber laser or laser two
Pole pipe (Laser Diode, LD).And laser diode is current one of the most common type laser generator.Accordingly, following embodiment
Will using laser diode as laser light source for be illustrated.
Further, from the point of view of with the development of the technology of current laser diode, the technology of blue laser diode the most at
Ripe and full blast.Therefore, in terms of cost, the every light watt cost of blue laser diode is less than every light of red laser diode
Watt cost, and every light watt cost of red laser diode is less than every light watt cost of green laser diode again.
Accordingly, the excitation light source 1 of the present embodiment is illustrated by taking laser light source as an example, and excitation light source 1 is blue laser
Diode.Therefore, in this embodiment, excitation beam B1 of the excitation light source 1 to generate blue.
Therefore, in embodiment one, the light beam that the first LED light source 3 generates is green light, the light beam that the second LED light source 4 generates
For red light, the light beam that reinforcement light source 2 generates is red light.And reinforcement light source 2 can be, but not limited to LED light source or laser light
Source.In this way, need to only use a laser light source that can improve the brightness of output light, cost be reduced accordingly.
With continued reference to Fig. 1 and Fig. 2, light splitting wheel 5 is circular configuration.First is divided into along the circular contour of light splitting wheel 5 to wear
Saturating area 51, the first echo area 52 and the second penetrating region 53.First penetrating region 51 passes through deexcitation first for the first excitation beam B2
LED light source 3 generates the first projecting beam G of green, and the first penetrating region 51 can reflect the first projecting beam G, and second wears
For reinforcement light velocity R2 by synthesizing feux rouges with the second LED light source 4, the first echo area 52 reflection excitation projecting beam B makees in saturating area 53
For blue light.Here, 5 systems of light splitting wheel are rotatably arranged on the path of excitation beam B1.Based on this, excitation beam B1 will be because dividing
The position of halo 5 and light splitting wheel 5 can be penetrated or be split 5 reflection of wheel, and due to green light, feux rouges and blue light synthesis white light
It typically constitutes from than being 30%, 50% and 20%, therefore, the first penetrating region 51 accounts for the 50% of contour area, first echo area 52 and accounts for wheel
Wide region 20% and second penetrating region 53 account for the 30% of contour area, the accounting of certain green light, feux rouges and blue light synthesis white light
Also aforementioned proportion is not necessarily used, respectively accounts for three point one of accounting or the ratio of 30% red 60% green 10% indigo plant as three coloured light can be used
Example, therefore, the contour area accounting of the first penetrating region 51, the first echo area 52 and the second penetrating region 53 also will be according to corresponding photochromic
Accounting be adjusted.
Further, please refer to Fig. 2, when the timing of the first penetrating region 51 alignment excitation beam B1, exciting light
Source 1 and the first LED light source 3 are opened, and reinforcement light source 2 and the second LED light source 4 are closed；
When first echo area 52 is directed at the timing of excitation beam B1, excitation light source 1 is opened, reinforcement light source 2, the second LED light
Source 4 and the first LED light source 3 are closed；When the timing of the second penetrating region 53 alignment excitation beam B1, excitation light source 1 and the first LED
Light source 3 is closed to avoid blue light interference, and reinforcement light source 2 and the second LED light source 4 are opened, and reinforcement light beam R2 passes through the second penetrating region
53 synthesize the second projecting beam with the second LED beam R1.
Further, 5 systems of light splitting wheel can connect with first driving device, and first driving device can drive 5 turns of light splitting wheel
It is dynamic.In this, first driving device can be but not limited to rotation motor.
In embodiment one, the first LED light source 3 is specially light emitting diode (Light Emitting Diode, LED).Tool
Body, light emitting diode includes LED chip and fluorophor, and LED chip issues the light of specific wavelength, and the light that LED chip issues swashs
Fluoresce body and Wavelength-converting becomes the light of other wavelength.Here, fluorophor can be the fluorescent powder being coated in LED chip,
It is also possible to be sintered to ceramic sheet body and is set in LED chip again.
Further, the photon energy based on blue light can effective excited fluophor, in this embodiment, the first LED core
Piece 31 is blue-light LED chip.Accordingly, it can be then stimulated by the fluorophor that heterogeneity forms and generate different wave length, color
Light.
In this, the first LED light source 3 is the LED light source that can issue green light.Specifically, the first LED light source 3 includes the
One LED chip 31 and fluorophor 32.In this, the first LED chip 31 is blue-light LED chip.Fluorophor 32 is with photoluminescent property
Substance, and this material molecule can light absorbing energy and be excited to higher-energy state, and in a very short period of time, molecule is back
It answers to low-energy state, and excess energy is released to (fluorescence reaction) in the form of light.Here, 32 light of fluorophor excitation and
Generate green light.
In this, the first LED light source 3 is arranged on the path of the first excitation beam B2, and fluorophor 32 in the first LED core
The direction of travel of the light direction of piece 31 and the first excitation beam B2.In this way, which on the one hand, fluorophor 32 can be simultaneously
Receive the first LED beam and the first excitation beam B2 of the generation of the first LED chip 31.Compared to only receiving the first LED beam
For excitation light source, fluorophor 32 simultaneously by the first LED beam and the first excitation beam B2 excitation and become first
Projecting direction is directed to after projecting beam G.
Accordingly, the luminous intensity of the first projecting beam G generated by the first LED light source 3 is greater than the first of the first LED light source 3
The luminous intensity for the first LED beam that LED chip 31 individually generates, therefore, the first projecting beam G are enhanced.In addition, implementing herein
It is the light source using the first excitation beam B2 that excitation light source 1 generates as excited fluophor 32 in example.Pass through the first excitation beam
B2 has the characteristics that high-intensitive, narrow bandwidth and same tone, and is easy to accumulate powerful energy on unit area, effective excited fluophor
32.In this way, the brightness of the first projecting beam G of green can be promoted without the use of the laser light source of green, and can be not
Light combination brightness is improved under the premise of cost must be greatly improved.
In this embodiment, the second LED light source 4 can produce the second red LED beam R1 and be directed to projecting direction
It is exported as the second projecting beam R.Accordingly, the second of projecting beam B, the first projecting beam G of green and red is excited to throw
Light beam of light combination needed for irradiating light beam R synthesizes optical projection system.
Further, feux rouges, green to ensure that synthesized light beam of light combination can be close to white light and not have the phenomenon that colour cast
Light and blue light, which have to comply with special ratios, can just reach this demand.And generally synthesize the ratio of the feux rouges of white light, green light and blue light
About 30%, 50%, 20%.Therefore, when white light to be ensured, which does not have color offset phenomenon, need to improve the brightness of white light again with regard to necessary
The brightness of feux rouges, green light and blue light is improved simultaneously.
Therefore, in the present embodiment, since the energy of laser light source is high, irradiation angle is small therefore light efficiency is higher than LED.?
That is the excitation projecting beam B brightness that excitation light source 1 generates can be greater than the first LED light source 3 and the second LED light source 4 generates
The brightness of LED beam.But in this embodiment, the fluorophor 32 of the first LED light source 3 is in addition to by the first LED chip 31
The excitation of one LED beam generates except light, and excitation light source 1 can inject fluorophor 32 simultaneously also with excited fluophor 32, fluorophor 32
The light source enhanced strength being stimulated, thus fluorophor 32 be excited after to generate the first projecting beam G brightness enhanced and can connect
The brightness of nearly excitation projecting beam B.
And in terms of red light, if need to enhance the brightness of feux rouges again, the reinforcement light that can produce feux rouges can be set again
Source 2.In this, reinforcement light source 2 can be, but not limited to generate the red laser light source of red light, and reinforcement light source 2 generates reinforcement light beam
R2, the reinforcement light beam R2 of this embodiment are red laser beam.And since the source of red light has what the second LED light source 4 generated
Second LED beam R1, therefore low power red laser light source can be used in the red laser light source as reinforcement light source 2, and
It will not cause greatly improving for cost.In this way, which reinforcement light beam R2 and the second LED beam R1 synthesize the second projecting beam R
And it is directed to projecting direction output.Further, when including red laser in the total system for the mixing light source of projection
When light source is as reinforcement light source 2, the wavelength of the feux rouges issued by red laser light source is longer, and hair the phenomenon that tend to have hot spot
It is raw.It therefore, can again include diffusion sheet 6 in this embodiment.Diffusion sheet 6 is set to the reinforcement light beam R2 of the sending of reinforcement light source 2
Path on, whereby eliminate hot spot phenomenon.
Further refering to fig. 1, red to generate second the second LED light source of projecting beam R 4 in an embodiment
The synthesis light for the feux rouges that light and reinforcement light source 2 generate, and more meet specific implementation aspect.5th optical filter can be set again
F5, in this embodiment, the reinforcement light beam R2 that the 5th optical filter F5 system can generate for reinforcement light source 2 passes through and reflects second
The second LED beam R1 that LED light source 4 generates, is overlapped with the reinforcement light beam R2 generated with reinforcement light source 2.In this, the second LED light
Source 4 and reinforcement light source 2 can be to project red light along orthogonal 90 degree of direction, and the 5th optical filter F5 is arranged second
LED light source 4 and reinforcement light source 2 go out on the light travel path of light.The reinforcement light beam R2 that reinforcement light source 2 generates passes through the 5th optical filter
F5, the light that the second LED light source 4 issues, which is reflexed to the reinforcement light beam R2 issued with reinforcement light source 2 by the 5th optical filter F5 and is overlapped, is
In addition second projecting beam R can also remove the second LED light source 4 and the 5th optical filter F5 only with reinforcement light source 2, at this
It can guarantee brightness by improving the power of reinforcement light source 2 in the case of kind.
Further, equally refering to fig. 1, in example 1, projecting beam B, the first projecting beam G are excited in order to guide
With the second projecting beam R directive projecting direction.The system further includes the first optical filter F1, the first reflecting mirror RJ1, the second reflecting mirror
RJ2, the second optical filter F2, excitation projecting beam B successively pass through the first optical filter F1 reflection, the first reflecting mirror RJ1 reflection, the
It is directed to the projecting direction after two-mirror RJ2 reflection and the second optical filter F2 transmission, first projecting beam G is successively by being somebody's turn to do
It is oriented to the projecting direction after the reflection of first penetrating region 51, the 5th optical filter F5 transmission, the second optical filter F2 reflection, second projection
Light beam R is oriented to the projecting direction after the second optical filter F2 reflection.The reinforcement light beam R2 that reinforcement light source 2 generates passes through the first filter
The the second LED beam R1 generated after mating plate F1, the second penetrating region 53 and the 5th optical filter F5 with the second LED light source 4 synthesizes second
Projecting beam R.
Embodiment two: being then two framework of embodiment of mixing light source of the present invention for projecting please refer to Fig. 3 again
Figure.The embodiment two and the structure of embodiment one are essentially identical, and the main distinction is: the first LED light source 3 is replaced using fluorophor 7
Generation, the 7 Ceramics fluorophor of fluorophor, the first excitation beam B2 directive fluorophor 7 generate the first projecting beam G and are directed to
Projecting direction.
Embodiment three: specifically, with continued reference to shown in Fig. 4 and Fig. 5, the mixing light source for projection include excitation light source 1,
Light splitting wheel 3, fluorophor 6, the second LED light source 4 and reinforcement light source 2.The excitation beam B1 that excitation light source 1 generates can be split wheel
5 transmissions are directly as excitation projecting beam B output, and 5 reflection of wheel that can be split is as the first excitation beam B2 directive fluorophor
6, excited fluophor 6 generates the excitation beam of other colors.Whereby, excitation needed for providing light beam of light combination by excitation light source 1
Projecting beam B, other kind of color needed for light beam of light combination then can be by the first excitation beam B2 excited fluophor 6 and the 2nd LED
The LED beam that light source 4 itself generates is overlapped and generates, and the luminous intensity deficiency of the second LED light source 4 is supplied by reinforcement light source 2.
Specifically, excitation light source is blue laser light source, fluorophor 6 uses ceramic phosphor, which is swashed by first
The beam B2 excitation that shines generates green light, and the light beam that the second LED light source 4 generates is red light, and the light beam that reinforcement light source 2 generates is red
Coloured light.And reinforcement light source 2 can be, but not limited to LED light source or laser light source.In this way, need to only use a laser light source
The brightness that output light can be improved, reduces cost accordingly.
With continued reference to Fig. 5, light splitting wheel 3 is circular configuration.The first echo area is divided into along the circular contour of light splitting wheel 3
31, the first penetrating region 32 and transition region 33.First echo area, 31 reflected excitation light beam B1 forms the first excitation beam B2, and first swashs
The beam B2 excited fluophor 6 that shines generates the first projecting beam G of green, and the first penetrating region 32 passes through for excitation projecting beam B and does
Complete blue light.Here, 3 systems of light splitting wheel are rotatably arranged on the path of excitation beam B1.Based on this, excitation beam B1 by because
Light splitting takes turns 3 position and can penetrate light splitting wheel 3 or be split 3 reflection of wheel, and due to green light, feux rouges and blue light synthesis white light
Typically constitute from than being 30%, 50% and 20%, therefore, the first echo area 31 accounts for the 50% of contour area, first penetrating region 32 and accounts for
The 20% of contour area, remaining is transition region 33, and the accounting of certain green light, feux rouges and blue light synthesis white light is also not necessarily using upper
Ratio is stated, respectively accounts for three point one of accounting or the ratio of 30% red 60% green 10% indigo plant as three coloured light can be used, therefore, first is anti-
Penetrate area 31, the contour area accounting of the first penetrating region 32 will be also adjusted according to corresponding photochromic accounting.
Further, please refer to Fig. 5, when the timing of the first echo area 31 alignment excitation beam B1, exciting light
Source 1 is opened, and reinforcement light source 2 and the second LED light source 4 are closed；When the timing of the first penetrating region 32 alignment excitation beam B1, excitation
Light source 1 is opened, and reinforcement light source 2, the second LED light source 4 are closed；When transition region 33 is directed at the timing of excitation beam B1, exciting light
Source 1 is closed to avoid blue light interference, and reinforcement light source 2 and the second LED light source 4 are opened.
Further, 5 systems of light splitting wheel can connect with first driving device, and first driving device can drive 5 turns of light splitting wheel
It is dynamic.In this, first driving device can be but not limited to rotation motor.
Referring to shown in Fig. 4, in order to guide excitation projecting beam B, the first projecting beam G and the second projecting beam R directive to throw
Penetrate direction, which further includes third optical filter F3, the 4th optical filter F4 and third reflecting mirror RJ3, the excitation projecting beam B according to
Secondary to be oriented to the projecting direction after third optical filter F3 reflection, the 4th optical filter F4 transmission, first excitation beam B2 is successively
It is oriented to the projecting direction after third reflecting mirror RJ3 reflection, the 4th optical filter F4 transmission, second projecting beam R is successively passed through
It is oriented to the projecting direction after crossing third optical filter F3 transmission, the 4th optical filter F4 transmission, in order to make reinforcement light beam R2 and the 2nd LED
Light beam R1 synthesizes the second projecting beam R, also sets up the 6th optical filter F6, and the 6th optical filter F6 passes through simultaneously anti-for reinforcement light beam R2
The second LED beam R1 is penetrated, thus the second projecting beam R of synthesis.
Although this announcement is disclosed as above with some embodiments, so it is not limited to this announcement, any affiliated technology
Has usually intellectual in field, in the spirit and scope for not departing from this announcement, when a little change and retouching can be made.Therefore originally
The scope of patent protection of invention must regard subject to the institute of claim appended by this specification defender.
Claims (13)
1. a kind of mixing light source for projection, characterized by comprising:
One excitation light source, to generate an excitation beam；
One light splitting wheel, is rotatably arranged on the path of the excitation beam, which has one first echo area and one
First penetrating region, to reflect the excitation beam, which is used to penetrate for the excitation beam for first echo area, from
And excitation beam is divided into two-way, it is all the way the first excitation beam, another way is excitation projecting beam and is directed to a projection side
To；
One fluorophor is arranged on the path of first excitation beam, which is generated one by first excitation beam excitation
First projecting beam is simultaneously directed to the projecting direction；And
One second light source, to generate one second projecting beam, which is directed to the projecting direction, which throws
Irradiating light beam, first projecting beam and second projecting beam it is photochromic different, and in blue, green and red
Selection.
2. the mixing light source for projection as described in claim 1, which is characterized in that the excitation beam penetrates this and first penetrates
Area forms the first excitation beam, which reflects to form excitation projecting beam by first echo area.
3. the mixing light source as claimed in claim 2 for projection, which is characterized in that the light splitting wheel is arranged in the first projection light
On the path of beam and excitation beam, and first penetrating region penetrates for excitation beam and reflects the first projecting beam.
4. the mixing light source for projection as claimed in claim 3, which is characterized in that the second light source include reinforcement light source and
Second LED light source, reinforcement light source generate reinforcement light beam, and the second LED light source generates the second LED beam, reinforcement light beam and the 2nd LED
Light beam synthesizes second projecting beam.
5. the mixing light source for projection as claimed in claim 4, which is characterized in that the light splitting wheel further includes second penetrating
Area, the light splitting wheel are arranged on the path of the reinforcement light beam, which passes through for the reinforcement light beam.
6. the mixing light source as claimed in claim 5 for projection, which is characterized in that the reinforcement light source is laser light source.
7. the mixing light source for projection as described in claim 3 or 4 or 5 or 6, which is characterized in that further include the first optical filtering
Piece, the first reflecting mirror, the second reflecting mirror, the second optical filter, the excitation projecting beam successively pass through the reflection of the first optical filter, first
Reflecting mirror reflection, the second reflecting mirror reflection and the second filter transmission after be directed to the projecting direction, first projecting beam according to
Secondary to be oriented to the projecting direction after first penetrating region reflection, the reflection of the second optical filter, which passes through second
The projecting direction is oriented to after optical filter reflection.
8. the mixing light source for projection as described in claim 1, which is characterized in that the excitation beam penetrates this and first penetrates
Area forms excitation projecting beam, which reflects to form the first excitation beam by first echo area.
9. the mixing light source as claimed in claim 8 for projection, which is characterized in that further include third optical filter, the 4th filter
Mating plate and third reflecting mirror, successively guiding should after the reflection of third optical filter, the 4th filter transmission for the excitation projecting beam
Projecting direction, first excitation beam are successively oriented to the projecting direction after the reflection of third reflecting mirror, the 4th filter transmission,
Second projecting beam is successively oriented to the projecting direction after third filter transmission, the 4th filter transmission.
10. such as the mixing light source as claimed in any one of claims 1 to 6 for projection, which is characterized in that further include one first
LED chip, first LED chip and the fluorophor constitute the first LED light source, which generates one first LED light
Beam, the fluorophor are generated one first projecting beam by first LED beam and the excitation of the first excitation beam simultaneously and are directed to
The projecting direction.
11. such as the mixing light source as claimed in any one of claims 1 to 6 for projection, which is characterized in that the fluorophor is ceramics
Fluorophor.
12. such as the mixing light source as claimed in any one of claims 1 to 6 for projection, which is characterized in that the excitation projection light
Beam, first projecting beam and the photochromic of second projecting beam are respectively blue, green and red.
13. such as the mixing light source as claimed in any one of claims 1 to 6 for projection, which is characterized in that the light splitting wheel is disk
The contoured profile of structure, first echo area and first penetrating region along the first light splitting wheel.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361920A (en) * | 2019-08-21 | 2019-10-22 | 吕素萍 | A kind of mixing light source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361920A (en) * | 2019-08-21 | 2019-10-22 | 吕素萍 | A kind of mixing light source |
| CN110361920B (en) * | 2019-08-21 | 2021-10-22 | 吕素萍 | Mixed light source |
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