CN106950788A - A kind of projection lighting optical path and its projection arrangement - Google Patents
A kind of projection lighting optical path and its projection arrangement Download PDFInfo
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- CN106950788A CN106950788A CN201710349749.0A CN201710349749A CN106950788A CN 106950788 A CN106950788 A CN 106950788A CN 201710349749 A CN201710349749 A CN 201710349749A CN 106950788 A CN106950788 A CN 106950788A
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- light source
- light beam
- blue
- led light
- dichronic mirror
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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
- G03B21/2013—Plural light sources
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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
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2053—Intensity control of illuminating light
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
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- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention provides a kind of projection lighting optical path and its projection arrangement, including：Blue led light source and the first collimation lens set；Red LED light source and the second collimation lens set；Green LED light source and the 3rd collimation lens set；Blue laser light source and the 4th collimation lens set；Color separation microscope group；Fly's-eye lens；And prism group；The prism group includes：First prism and the second right-angle prism；The green LED light source surface carries phosphor powder layer, and the blue laser beams produced by blue laser light source are irradiated to green LED light source excitated fluorescent powder layer after the one of face total reflection right-angle surface reflection of the first prism and produce green fluorescence light beam；In the present invention, blue laser beams incide green LED light source surface after the one of face total reflection of the first prism and produce green fluorescence light beam with the opposite excitated fluorescent powder layer of light beam produced by the luminescence chip of green LED light source itself, it greatly strengthen green-light source brightness, and structure setting is flexible, compact in design, projection light source brightness is enhanced, projection quality is improved.
Description
Technical field
The present invention relates to digital projection display technology field, more specifically to a kind of projection lighting optical path and its throwing
Image device.
Background technology
In Projection Display product, projection display light source is highly important part.The function of projection light source apparatus is
Light beam is sent as much as possible wide-angle distribution, shape differ, the illuminating ray of brightness not etc., are converted to and are irradiated to display
The uniform light spots of chip effective coverage, realize uniform, bright projection display picture.Projection module will be applied preferably,
Bringing the more preferable visual enjoyment of user, size is small, light loss it is necessary under the premise of keeping projecting light path's design to be concisely and efficiently, meet
Consumption is low and strengthens intensity of illumination and makes with high light output, and this also has technical problem to be solved as those skilled in the art
One of.
At present, usually combined, excited using blue laser light source green on colour wheel using blue laser source and LED light source
Color fluorescent material produces green-light source to improve the brightness of projection light source；As shown in figure 1, blue laser light source 1 is excited through transmission
The chromogenic green light source of phosphor powder layer on colour wheel 7, then carry out closing light with red LED light source 8 and blue led light source 14；Or
It is green LED light source of the blue laser light source direct irradiation with phosphor powder layer to improve the brightness of projection light source；Such as Fig. 2 institutes
Show, LD systems are irradiated on green LED light source the chromogenic green fluorescence of excitated fluorescent powder layer after transmission, green fluorescence light beam with it is green
Color LED beam closing light enters next Optical devices.But, using the method for exciting the chromogenic green light source of the phosphor powder layer on colour wheel
Because high speed rotation is also easy to produce halo effect, image is unstable, and image quality is poor；And excitated fluorescent powder layer is directly transmitted using LD systems
Method be then relatively limited because the position of light source is set, underaction is also not compact enough in structure.For these reasons, it is a kind of
Influence of the colour wheel to projection image quality, and flexible layout can be overcome, the projection lighting optical path of the enhancing light of compact conformation turns into this
One of the research emphasis in field.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering
When the existing skill for being considered as recognizing or implying the information structure in any form well known to persons skilled in the art
Art..
The content of the invention
For above-mentioned technical problem, it is an object of the invention to provide a kind of simple and reasonable, compact in design, brightness
Height, the projection lighting optical path and its projection arrangement of the good enhancing light of projection quality.
To achieve the above object, the invention provides a kind of projection lighting optical path, including：Indigo plant for producing blue light beam
Color LED light source and the first collimation lens set being arranged at immediately ahead of blue LED light source light path；For producing the red of red beam
Color LED light source and the second collimation lens set being arranged at immediately ahead of red LED light source light path；Green LED light source and setting
The 3rd collimation lens set immediately ahead of green LED light source light path；Blue laser light source and it is arranged at blue laser light source light
The 4th collimation lens set immediately ahead of road；Color separation microscope group；Fly's-eye lens；And prism group；Wherein, the prism group includes：The
One prism and the second right-angle prism；The green LED light source surface carries phosphor powder layer, the blueness produced by blue laser light source
Laser beam incides green LED light source surface and green LED light source itself after one of face total reflection through the first prism
Luminescence chip produced by light beam opposite excitated fluorescent powder layer produce green fluorescence light beam；Via the color separation microscope group and prism
Blue light beam, red beam and the green fluorescence light beam synthesis white light beam of group transmission and/or reflection.
Preferably, the color separation microscope group includes：Parallel or vertically disposed first dichronic mirror and the second dichronic mirror；Described
One prism is right-angle prism, on the emitting light path for being arranged on blue laser light beam, for be totally reflected blue laser light beam and by its
It is incident to green LED light source；Second dichronic mirror is arranged at the blue led light source, the emitting light path of green LED light source
On, for transmiting green fluorescence light beam or reflection blue light beam；First dichronic mirror is arranged at the red LED light source, with
And through in the green fluorescence light beam that the second dichronic mirror is transmitted and is reflected and the light path of the outgoing beam of blue light beam, it is red for reflecting
Color beam, transmitting blue light beam and green fluorescence light beam；Blue laser beams are saturating through compound eye after the slant reflection of the first prism
Mirror is homogenized, then incides green LED light source surface and green LED light source itself through the first dichronic mirror and the transmission of the second dichronic mirror
Luminescence chip produced by light beam opposite excitated fluorescent powder layer produce green fluorescence light beam；The green fluorescence light beam is via
One dichronic mirror and the transmission of the second dichronic mirror；The blue light beam is via the second dichroic mirror and incides first dichronic mirror
On, transmitted via first dichronic mirror；The red beam is via the first dichroic mirror；The blue light beam, red light
Beam and green fluorescence light beam are through the first dichroic mirror and transmission closing light formation white light beam outgoing.
Preferably, the central optical axis of the red LED light source, the central optical axis of blue led light source and blue laser light
The central optical axis in source are parallel, vertical with the central optical axis of green LED light source；First dichronic mirror and the second dichronic mirror with it is red
The angle in the central optical axis direction of color LED light source, blue led light source, green LED light source and blue laser light source is 45 °；
The central optical axis of the green LED light source are overlapped with the central optical axis of fly's-eye lens.
Preferably, the color separation microscope group includes：Parallel or vertically disposed 3rd dichronic mirror and the 4th dichronic mirror；Described
One prism is on right-angle prism, the emitting light path for being arranged on blue laser light beam, for reflecting blue laser light beam；Described 3rd
Dichronic mirror is arranged on the blue led light source, the emitting light path of red LED light source, for transmission or reflection blue light beam and
Red beam, to blue light beam and red beam closing light；4th dichronic mirror is arranged at the green LED light source device, with
And through in the red beam that the 3rd dichronic mirror is transmitted and is reflected and the light path of the outgoing beam of blue light beam, it is glimmering for transmiting green
Light light beam, reflection blue light beam and red beam；After inclined-plane total reflection of the blue laser beams through the first prism, through fly's-eye lens
Homogenize, then green LED light source surface and the green LED light source luminescence chip of itself are incided through the transmission of the 4th dichronic mirror and produced
The opposite excitated fluorescent powder layer of raw light beam produces green fluorescence light beam；The green fluorescence light beam is transmitted via the 4th dichronic mirror；
The blue light beam and red beam are via closing light after the 3rd dichronic mirror transmission or reflection and via the 4th dichroic mirror；
Closing light formation white light beam goes out after the blue light beam, red beam and green fluorescence light beam are transmitted and reflected through the 4th dichronic mirror
Penetrate.
Preferably, the central optical axis of the red LED light source and the central optical axis of green LED light source are parallel, and with indigo plant
The central optical axis of color LED light source and the central optical axis of blue laser light source are vertical；Or the central optical axis of the blue led light source
It is parallel with the central optical axis of green LED light source, and central optical axis and the center light of blue laser light source with red LED light source
Axle is vertical；First dichronic mirror and the second dichronic mirror and red LED light source, blue led light source, green LED light source and indigo plant
The angle in the central optical axis direction of color LASER Light Source is 45 °；In the central optical axis and fly's-eye lens of the green LED light source
Heart optical axis coincidence.
Preferably, the color separation microscope group includes：The 5th dichronic mirror be arrangeding in parallel and the 6th dichronic mirror, and the first wedge shape
Prism；First prism is on non-straight angle prism, the emitting light path for being arranged on blue laser light beam, for reflecting blue laser
Light beam；5th dichronic mirror is arranged on the blue led light source, the emitting light path of red LED light source, for transmiting or instead
Blue light beam and red beam are penetrated, and carries out closing light；6th dichronic mirror is arranged at the green LED light source device, and
Through in the red beam that the 5th dichronic mirror is transmitted and is reflected and the light path of the outgoing beam of blue light beam, for reflection green fluorescence
Blue light beam and red beam after light beam and blue laser beams, and the 3rd dichronic mirror closing light of transmission；First wedge shape
Prism is arranged in the light path of the blue laser light beam through the first prismatic reflection, including the first reflecting surface and the second reflecting surface, institute
State the first reflecting surface and the second reflecting surface is non-parallel, first reflecting surface is used for reflection red light beam, blue light beam and described
Green fluorescence light beam, second reflecting surface is used to reflect blue laser light beam；The blue laser beams are first through the first prism
The total reflection of one of face after, incide the second reflecting surface of first prism wedge, then through first prism wedge
Second reflective surface incides the 6th dichronic mirror, through the 6th dichroic mirror incide green LED light source surface with it is green
The opposite excitated fluorescent powder layer of light beam produced by the color LED light source luminescence chip of itself produces green fluorescence light beam；The green
Fluorescent light beam is via the 6th dichroic mirror；The blue light beam and red beam are closed via after the 5th dichronic mirror transmission or reflection
Light is simultaneously transmitted via the 6th dichronic mirror；The blue light beam, red beam and green fluorescence light beam are saturating through the 6th dichronic mirror
Closing light formation white light beam incides first prism wedge after penetrating and reflecting, and first through first prism wedge is anti-
Penetrate outgoing after the reflection of face.
Preferably, the central optical axis of the red LED light source and the central optical axis of green LED light source are parallel, with blueness
The central optical axis of LED light source and the central optical axis of blue laser light source are vertical, or the blue color LED light source central optical axis
It is parallel with the central optical axis of green LED light source, central optical axis and the central optical axis of blue laser light source with red LED light source
Vertically；5th dichronic mirror and the 6th dichronic mirror and red LED light source, blue led light source, green LED light source and blueness
The angle of the central optical axis of LASER Light Source is 45 °.
Preferably, the color separation microscope group includes：7th dichronic mirror, and the second prism wedge；First prism is non-
On right-angle prism, the emitting light path for being arranged on blue laser light beam, for reflecting blue laser light beam；7th dichronic mirror is set
It is placed on the blue led light source, the emitting light path of red LED light source, for transmission or reflection blue light beam and red beam
And carry out closing light；Second prism wedge is arranged in the light path of the blue laser light beam through the first prismatic reflection, including the
Three reflectings surface and the 4th reflecting surface, the 3rd reflecting surface and the 4th reflecting surface are non-parallel, the 3rd reflecting surface be used for thoroughly or
Red beam, blue light beam and the reflection green fluorescence light beam are reflected, the 4th reflecting surface is used for saturating or refraction red light
Beam, blue light beam, and reflect blue laser light beam；The blue laser beams first one of face total reflection through the first prism
Afterwards, the 4th reflecting surface of second prism wedge is incided, then it is incident through the reflective surface of the second prism wedge the 4th
Produced to the opposite excitated fluorescent powder layer of light beam produced by the luminescence chip of green LED light source surface and green LED light source itself
Green fluorescence light beam；The green fluorescence light beam via the second prism wedge the 3rd reflective surface；The blue light beam and
Red beam is via closing light after the 7th dichronic mirror transmission or reflection and the 3rd reflecting surface via second prism wedge and
Four reflectings surface are transmitted；The 3rd reflecting surface of the blue light beam, red beam and green fluorescence light beam through the second prism wedge is saturating
Closing light formation white light beam outgoing after penetrating and reflecting.
According to another embodiment of the present invention, a kind of projection arrangement is additionally provided, it includes above-mentioned projection lighting optical path,
Also include：Display chip and projection lens group.
Preferably, blue light beam, red beam and the green fluorescence light for transmiting and/or reflecting via the color separation microscope group
Shu Hecheng white light beams enter after fly's-eye lens homogenization, then incide display core by the first prism and the second right-angle prism
Piece；The display chip is parallel with a right-angle side of the second right-angle prism.
Compared with prior art, the present invention has the advantages that：A kind of projection lighting optical path, including:Blue LED light
Source and the first collimation lens set；Red LED light source and the second collimation lens set；Green LED light source and the 3rd collimation
Lens group；Blue laser light source and the 4th collimation lens set；Color separation microscope group；Fly's-eye lens；And prism group；The prism group
Including：First prism and the second right-angle prism；The green LED light source surface carries phosphor powder layer, and blue laser light source is produced
Raw blue laser beams be irradiated to after the first prism one of face total reflection right-angle surface reflection green LED light source surface with
The opposite excitated fluorescent powder layer of light beam produced by the luminescence chip of green LED light source itself produces green fluorescence light beam；The present invention
In, blue laser light source excites green LED light source surface and green LED light source certainly after being totally reflected through the one of face of the first prism
The opposite excitated fluorescent powder layer of light beam produced by the luminescence chip of body produces green fluorescence light beam, greatly strengthen green-light source bright
Degree, enhances projection light source brightness；And due to the setting of dichronic mirror and prism so that simple and reasonable, compact in design, structure
Setting can be flexible and changeable, greatly strengthen the brightness of green-light source, improves projection quality, solves light in projection light source apparatus
The problem of source luminance shortage.
Brief description of the drawings
Fig. 1 is the projection light source structure chart that prior art iridescent wheel construction is excited；
Fig. 2 is the projector optical system that prior art phosphor powder layer is directly excited；
Fig. 3 is the structural representation of the projection lighting optical path embodiment one of the present invention；
Fig. 4 is the structural representation of the projection lighting optical path embodiment two of the present invention；
Fig. 5 is the structural representation of the projection lighting optical path embodiment three of the present invention；
Fig. 6 is the structural representation of the projection lighting optical path example IV of the present invention；
Fig. 7 is the projection arrangement structural representation corresponding to the projection lighting optical path embodiment one of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
Fig. 3 is the structural representation of the projection lighting optical path embodiment one of the present invention；As shown in figure 3, according to present invention tool
The projection lighting optical path of body embodiment, including：For producing the blue led light source 101 of blue light beam and being arranged at blueness
The first collimation lens set 102 immediately ahead of the light path of LED light source 101；For produce red beam red LED light source 103 and
It is arranged at the second collimation lens set 104 immediately ahead of the light path of red LED light source 103；Green for producing green LED light beam
LED light source 105 and the 3rd collimation lens set 106 being arranged on immediately ahead of the light path of green LED light source 105；Blue laser light source
107 and the 4th collimation lens set 108 that is arranged at immediately ahead of the light path of blue laser light source 107；Color separation microscope group；Fly's-eye lens
111；And prism group.
Wherein, in the embodiment of the present invention, the green LED light source 105 includes：LED luminescence chips and luminescence chip surface
Phosphor powder layer；Color separation microscope group includes:First dichronic mirror 109 and the second dichronic mirror 110；Fly's-eye lens 111；And prism group；
Wherein, the prism group includes：First prism 112 and the second right-angle prism 113, first prism 112 are right-angle prism；Institute
The surface of green LED light source 105 is stated with phosphor powder layer, the blue laser beams produced by blue laser light source 107 are through the first rib
Incided after the total reflection of the inclined-plane of mirror 112 surface of green LED light source 105 with produced by green LED light source 105 luminescence chip of itself
Light beam opposite excitated fluorescent powder layer produce green fluorescence light beam, green fluorescence light beam with it is green produced by green LED light source 105
Color LED beam closing light formation green fluorescence light beam.
In the present embodiment, the dichronic mirror 110 of the first dichronic mirror 109 and second is vertically arranged；First prism is
On 112 right-angle prisms, the emitting light path for being arranged on blue laser light beam, for reflecting blue laser light beam and being incident to green
Color LED light source 105；Second dichronic mirror 110 is arranged at the blue led light source 101, the emergent light of green LED light source 105
Lu Shang, for transmiting green fluorescence light beam or reflection blue light beam.
First dichronic mirror 109 is arranged at the red LED light source 103, and transmits and reflect through the second dichronic mirror
Green fluorescence light beam and blue light beam outgoing beam light path on, for reflection red light beam, transmitting blue light beam and green
Color fluorescent light beam.
The inclined-plane of blue laser beams (blue led light beam is different with blue laser beams wavelength) through the first prism 109 is complete
After reflection, homogenized through fly's-eye lens 111, then green LED is incided through the first dichronic mirror 109 and the transmission of the second dichronic mirror 110
The surface of light source 105 produces green with the opposite excitated fluorescent powder layer of light beam produced by green LED light source 105 luminescence chip of itself
Fluorescent light beam；The green fluorescence light beam is transmitted via the first dichronic mirror 109 and the second dichronic mirror 110.
The blue light beam reflects and incided on first dichronic mirror 109 via the second dichronic mirror 110, via described
First dichronic mirror 109 is transmitted.
The red beam reflects via the first dichronic mirror 109.
The blue light beam, red beam and green fluorescence light beam reflect and transmitted closing light through the first dichronic mirror 109 and formed
White light beam outgoing.
Central optical axis, the central optical axis of blue led light source 101 and the blue laser light source of the red LED light source 103
107 central optical axis are parallel, vertical with the central optical axis of green LED light source 105.
In the present embodiment, the angle of the dichronic mirror 110 of the first dichronic mirror 109 and second is 90 °；First color separation
The angle of the dichronic mirror 110 of mirror 109 and second is 90 °；The dichronic mirror 110 of first dichronic mirror 109 and second and red LED light source
103, blue led light source 101, the angle of the central optical axis of green LED light source 105 and blue laser light source is 45 °；It is described
The central optical axis of green LED light source 105 are overlapped with the central optical axis of fly's-eye lens 111.
Wherein, the dichronic mirror 110 of the first dichronic mirror 109 and second is not limited to be vertically arranged, can also be according to specific
The putting position of light supply apparatus be arranged in parallel.
Wherein, the position of the blue led light source 101 and red LED light source 103 can mutually be exchanged, as long as can guarantee that
Red beam and blue light beam after dichronic mirror is transmitted and is reflected can in one direction be gone out with green fluorescence light beam with closing light
Penetrate.
It is worth noting that, in the present embodiment, blue laser beams and indigo plant produced by the blue laser light source 107
Blue light beam wavelength produced by color LED light source 101 is different, thus the second dichronic mirror 110 can with transmitting blue laser beam but
It is reflection blue light beam.
Fig. 4 is the structural representation of the projection lighting optical path embodiment two of the present invention；As shown in figure 4, according to present invention tool
The projection lighting optical path of body embodiment, including：For producing the blue led light source 201 of blue light beam and being arranged at blueness
The first collimation lens set 202 immediately ahead of the light path of LED light source 201；For produce red beam red LED light source 203 and
It is arranged at the second collimation lens set 204 immediately ahead of the light path of red LED light source 203；Green for producing green LED light beam
LED light source 205 and the 3rd collimation lens set 206 being arranged on immediately ahead of the light path of green LED light source 205；Blue laser light source
207 and the 4th collimation lens set 208 that is arranged at immediately ahead of the light path of blue laser light source 207；Color separation microscope group；Fly's-eye lens
211；And prism group.
From unlike embodiment one, in embodiment two, the color separation microscope group includes：The 3rd dichronic mirror be arrangeding in parallel
209 and the 4th dichronic mirror 210；3rd dichronic mirror 209 is arranged at the blue led light source 201, red LED light source 203
On emitting light path, for transmission or reflection blue light beam and red beam, to blue light beam and red beam closing light.
4th dichronic mirror 210 is arranged at the green LED light source 205, and transmits and reflect through the 3rd dichronic mirror
Red beam and blue light beam outgoing beam light path on, for transmiting green fluorescence light beam, reflection blue light beam and red
Color beam.
The prism group includes：First prism 212 and the second right-angle prism 213, first prism 212 are right-angled edge
On mirror, the emitting light path for being arranged on blue laser light beam 207, for reflecting blue laser light beam 207.
After inclined-plane total reflection of the blue laser beams 207 through the first prism 212, homogenized through fly's-eye lens 211, then through the
The transmission of four dichronic mirrors 210 incide the surface of green LED light source 205 with produced by green LED light source 205 luminescence chip of itself
The opposite excitated fluorescent powder layer of light beam produces green fluorescence light beam；The green fluorescence light beam is transmitted via the 4th dichronic mirror 210.
The blue light beam and red beam are via closing light after the transmission or reflection of the 3rd dichronic mirror 209 and via the described 4th
Dichronic mirror 210 reflects.
Closing light forms white after the blue light beam, red beam and green fluorescence light beam are transmitted and reflected through the 4th dichronic mirror
Light beam exit.
In the present embodiment, the central optical axis of the central optical axis of the red LED light source 203 and green LED light source 205 are put down
OK, it is vertical with the central optical axis of blue led light source 201 and the central optical axis of blue laser light source 207；3rd dichronic mirror
209 and the 4th the angle of dichronic mirror 210 and horizontal direction be 45 °；The central optical axis and compound eye of the green LED light source 205
The central optical axis of lens 211 are overlapped.
Wherein, the dichronic mirror 210 of the first dichronic mirror 209 and second is not limited to be arranged in parallel, can also be according to specific
The putting position of light supply apparatus is vertically arranged.
Wherein, the position of the blue led light source 201 and red LED light source 203 can mutually be exchanged, as long as can guarantee that
Red beam and blue light beam after dichronic mirror is transmitted and is reflected can in one direction be gone out with green fluorescence light beam with closing light
Penetrate.If the position of the blue led light source 201 and red LED light source 203 is mutually exchanged, the blue led light source
201 central optical axis and the central optical axis of green LED light source 205 be arranged in parallel, the central optical axis with red LED light source 203
It is vertical with the central optical axis of blue excitation light source 207.
Fig. 5 is the structural representation of the projection lighting optical path embodiment three of the present invention；As shown in figure 5, according to present invention tool
The projection lighting optical path of body embodiment, including：For producing the blue led light source of blue light beam and being arranged at blue led
The first collimation lens set immediately ahead of light source optical path；For producing the red LED light source of red beam and being arranged at red LED
The second collimation lens set immediately ahead of light source optical path；For producing the green LED light source 305 of green LED light beam and being arranged on
The 3rd collimation lens set immediately ahead of the light path of green LED light source 305；Blue laser light source 307 and it is arranged at blue laser light
The 4th collimation lens set immediately ahead of the light path of source 307；Color separation microscope group；Fly's-eye lens 311；And prism group.
From unlike embodiment one and embodiment two, the color separation microscope group includes：The 5th dichronic mirror 309 be arrangeding in parallel
With the 6th dichronic mirror 310, and the first prism wedge 314；First prism 312 is non-straight angle prism, is arranged on blue light and swashs
On the emitting light path of light light beam 307, for reflecting blue laser light beam 307.
5th dichronic mirror 309 is arranged on the blue led light source 301, the emitting light path of red LED light source 303,
For transmission or reflection blue light beam and red beam, and carry out closing light；
6th dichronic mirror 310 is arranged at the green LED light source 305, and transmits and reflect through the 5th dichronic mirror
Red beam and blue light beam outgoing beam light path on, for reflection green fluorescent light beam and blue laser beams, with
And blue light beam and red beam after the 3rd dichronic mirror closing light of transmission；
First prism wedge 314 is arranged in the light path of the blue laser light beam 307 reflected through the first prism 312,
It is non-parallel including the first reflecting surface S1 and the second reflecting surface S2, the first reflecting surface S1 and the second reflecting surface S2, described first
Reflecting surface S1 is used for reflection red light beam, blue light beam and the green fluorescence light beam, and the second reflecting surface S2 is used to reflect
Blue laser light beam.Angle between the first reflecting surface S1 and the second reflecting surface S2 is preferably limited to 0 ° -30 °.
One of face of the blue laser beams 307 first through the first prism 312 (in the present embodiment, is set to and the
The parallel face of the right-angle surface of two prism 313) total reflection after, incide the second reflecting surface S2 of first prism wedge 314, then pass through
The second reflecting surface S2 reflections of first prism wedge 314 incide fly's-eye lens 311 and carry out homogenization into the 6th color separation
Mirror 310, reflects through the 6th dichronic mirror 310 and incides the luminous of the surface of green LED light source 305 and green LED light source itself
The opposite excitated fluorescent powder layer of light beam produced by chip produces green fluorescence light beam, and the green fluorescence light beam is via the 6th color separation
Mirror 310 reflects.
The blue light beam and red beam are via closing light after the transmission or reflection of the 5th dichronic mirror 309 and via the described 6th
Dichronic mirror transmission 310.
The blue light beam, red beam and green fluorescence light beam transmit and reflect through the 6th dichronic mirror 310 after closing light shape
First prism wedge 314, and the reflections of the first reflecting surface S1 through first prism wedge 314 are incided into white light beam
Outgoing afterwards.
In the present embodiment, the central optical axis of the central optical axis of the red LED light source 303 and green LED light source 305 are put down
OK, it is vertical with the central optical axis of blue led light source 301 and the central optical axis of blue laser light source 307；5th dichronic mirror
309 and the 6th dichronic mirror 310 and red LED light source 303, blue led light source 301, green LED light source 305 and blue laser
The angle of the central optical axis of light source 307 is 45 °.
Wherein, the dichronic mirror 310 of the first dichronic mirror 309 and second is not limited to be vertically arranged, can also be according to specific
The putting position of light supply apparatus be arranged in parallel.
Wherein, the position of the blue led light source 301 and red LED light source 303 can mutually be exchanged, as long as can guarantee that
Red beam and blue light beam after dichronic mirror is transmitted and is reflected can in one direction be gone out with green fluorescence light beam with closing light
Penetrate.If the position of the blue led light source 301 and red LED light source 303 is mutually exchanged, the blue led light source
301 central optical axis are parallel with the central optical axis of green LED light source 305, the central optical axis and indigo plant with red LED light source 303
The central optical axis of color LASER Light Source 307 are vertical.
Fig. 6 is the structural representation of the projection lighting optical path example IV of the present invention；As shown in fig. 6, according to present invention tool
The projection lighting optical path of body embodiment, including：For producing the blue led light source of blue light beam and being arranged at blue led
The first collimation lens set immediately ahead of light source optical path；For producing the red LED light source of red beam and being arranged at red LED
The second collimation lens set immediately ahead of light source optical path；For producing the green LED light source 405 of green LED light beam and being arranged on
The 3rd collimation lens set immediately ahead of the light path of green LED light source 405；Blue laser light source 407 and it is arranged at blue laser light
The 4th collimation lens set immediately ahead of the light path of source 407；Color separation microscope group；Fly's-eye lens 411；And prism group.
From unlike embodiment and embodiment two, the color separation microscope group includes：7th dichronic mirror 409 and the second wedge-shaped rib
Mirror 410；First prism 412 is non-straight angle prism.
First prism is arranged on the emitting light path of blue laser light beam 407, for reflecting blue laser light beam；
7th dichronic mirror 409 is arranged on the blue led light source, the emitting light path of red LED light source, for saturating
Penetrate or reflection blue light beam and red beam and carry out closing light；
Second prism wedge 410 is arranged in the light path of the blue laser light beam 407 reflected through the first prism 412,
Including the 3rd reflecting surface S3 and the 4th reflecting surface S4, the 3rd reflecting surface S3 and the 4th reflecting surface S4 is non-parallel, and the described 3rd
Reflecting surface S3 is used for thoroughly or reflected red beam, blue light beam and the reflection green fluorescence light beam, the 4th reflecting surface S4
For saturating or refraction red beam, blue light beam, and reflect blue laser light beam.Wherein, the 3rd reflecting surface S3 and the 4th
Angle between reflecting surface S4 is preferably limited to 0 ° -30 °.
One of face of the blue laser beams 407 first through the first prism 412 (in the present embodiment, is set to and the
The parallel face of two prism right-angle surfaces) total reflection after, homogenized through fly's-eye lens 411, incide second prism wedge 410
4th reflecting surface S4, then through the reflecting surface S4 of the second prism wedge the 4th reflection incide the surface of green LED light source 405 with it is green
The opposite excitated fluorescent powder layer of light beam produced by the color LED light source luminescence chip of itself produces green fluorescence light beam, the green
Fluorescent light beam reflects via the 3rd reflecting surface S3 of the second prism wedge 410；
The blue light beam and red beam are via closing light after the transmission or reflection of the 7th dichronic mirror 409 and via described second
3rd reflecting surface S3 of prism wedge 410 and the 4th reflecting surface S4 transmissions are reflected；
Closing light is formed after the blue light beam, red beam and green fluorescence light beam are transmitted and reflected through the second prism wedge
White light beam outgoing.
Wherein, the position of the blue led light source and red LED light source can mutually be exchanged, as long as can guarantee that through undue
Red beam and blue light beam after Look mirror transmission and reflection can be with closing light outgoing in one direction with green fluorescence light beam.
In addition, present invention also offers a kind of projection arrangement；Fig. 7 be the present invention projection lighting optical path embodiment one pair
The projection arrangement structural representation answered；As shown in fig. 7, a kind of projection arrangement includes：Projection lighting optical path described above, is also wrapped
Include：Display chip 100 and projection lens group 200.
In the present embodiment, via the color separation microscope group transmit and/or reflect blue led light beam, red LED light beam with
And green fluorescence light beam synthesis white light beam enters after the homogenization of fly's-eye lens 511, then by the first prism 512 and the second right angle
Prism 513 incides display chip 100；It is preferred that the display chip 100 is parallel with a right-angle surface of the second right-angle prism 513,
It is arranged in parallel and enables the light beam from the second right-angle prism outgoing to impinge perpendicularly on display chip, it is preferable that light gathers effect.
Wherein the second right-angle prism is used to change guiding beam direction so that impinge perpendicularly on DMD illuminating bundle through the second right-angled edge
Glancing incidence is to projection lens after mirror reflection.
It is worth noting that, in above-described embodiment, the dichronic mirror can plate Anti-reflective coating or anti-reflection film as needed；This
The projection light source apparatus structure of invention is not restricted to above-mentioned four kinds of embodiments, every to irradiate green by reflection blue LASER Light Source
The opposite excitated fluorescent powder layer of light beam produced by the color LED light source luminescence chip of itself produces green fluorescence light beam and belongs to this hair
Bright protection domain.
In the embodiment of the present invention, described assorted light supply apparatus is preferably disposed on approximately the same plane, and so setting to make
Structure is compacter, naturally it is also possible to according to assorted light supply apparatus being set not same the need for concrete structure or environment
Individual plane, as long as so that by exciting the green fluorescence and blue light beam and red beam of generation by dichroic mirror and thoroughly
Finally energy closing light outgoing, can realize the purpose of the present invention after penetrating.
In summary, in projection lighting optical path of the invention and its projection arrangement blue laser light source excite after reflection it is green
Phosphor powder layer on color LED light source produces green fluorescence, greatly strengthen green-light source brightness, enhances projection light source brightness；
And due to the setting of dichronic mirror and prism so that simple and reasonable, compact in design, structure setting can be flexible and changeable, increases
The strong brightness of green-light source, improves projection quality, solves the not enough problem of light-source brightness in projection light source apparatus.
It is foregoing to the present invention specific illustrative embodiment description be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles and its reality of the present invention should
With so that those skilled in the art can realize and using the present invention a variety of exemplaries and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (10)
1. a kind of projection lighting optical path, it is characterised in that including：
The first collimation for producing the blue led light source of blue light beam and being arranged at immediately ahead of blue LED light source light path is saturating
Microscope group；The second collimation for producing the red LED light source of red beam and being arranged at immediately ahead of red LED light source light path is saturating
Microscope group；Green LED light source and the 3rd collimation lens set being arranged on immediately ahead of green LED light source light path；Blue laser light source
And it is arranged at the 4th collimation lens set immediately ahead of blue laser light source light path；Color separation microscope group；Fly's-eye lens；And prism
Group；
Wherein, the prism group includes：First prism and the second right-angle prism；The green LED light source surface carries fluorescent material
Layer, green is incided after one of face total reflection of the blue laser beams through the first prism produced by blue laser light source
It is glimmering that the opposite excitated fluorescent powder layer of light beam produced by the luminescence chip of itself of LED light source surface and green LED light source produces green
Light light beam；
Via the color separation microscope group and blue light beam, red beam and the green fluorescence light beam of prism group transmission and/or reflection
Synthesize white light beam.
2. projection lighting optical path according to claim 1, it is characterised in that
The color separation microscope group includes：Parallel or vertically disposed first dichronic mirror and the second dichronic mirror；
First prism is on right-angle prism, the emitting light path for being arranged on blue laser light beam, for being totally reflected blue laser
Light beam is simultaneously incident to green LED light source；
Second dichronic mirror is arranged on the blue led light source, the emitting light path of green LED light source, for transmiting green
Fluorescent light beam or reflection blue light beam；
First dichronic mirror is arranged at the red LED light source, and the green fluorescence for transmiting and reflecting through the second dichronic mirror
In the light path of the outgoing beam of light beam and blue light beam, for reflection red light beam, transmitting blue light beam and green fluorescence light beam；
Blue laser beams are homogenized after the slant reflection of the first prism through fly's-eye lens, then through the first dichronic mirror and second
The light beam that dichronic mirror is transmitted produced by inciding green LED surface and the green LED light source luminescence chip of itself excites glimmering in opposite directions
Light bisque produces green fluorescence light beam, and the green fluorescence light beam is transmitted via the first dichronic mirror and the second dichronic mirror；
The blue light beam is via the second dichroic mirror and incides on first dichronic mirror, via first dichronic mirror
Transmission；
The red beam is via the first dichroic mirror；
The blue light beam, red beam and green fluorescence light beam are through the first dichroic mirror and transmission closing light formation white light beam
Outgoing.
3. projection lighting optical path according to claim 2, it is characterised in that the central optical axis of the red LED light source, indigo plant
The central optical axis of color LED light source and the central optical axis of blue laser light source are parallel, and the central optical axis with green LED light source hang down
Directly；First dichronic mirror and the second dichronic mirror and red LED light source, blue led light source, green LED light source and blueness swash
The angle in the central optical axis direction of radiant is 45 °；The central optical axis of the green LED light source and the center light of fly's-eye lens
Overlapping of axles.
4. projection lighting optical path according to claim 1, it is characterised in that
The color separation microscope group includes：Parallel or vertically disposed 3rd dichronic mirror and the 4th dichronic mirror；
First prism is on right-angle prism, the emitting light path for being arranged on blue laser light beam, for reflecting blue laser light
Beam；
3rd dichronic mirror is arranged on the blue led light source, the emitting light path of red LED light source, for transmiting or instead
Blue light beam and red beam are penetrated, to blue light beam and red beam closing light；
4th dichronic mirror is arranged at the green LED light source device, and the red for transmiting and reflecting through the 3rd dichronic mirror
In the light path of the outgoing beam of light beam and blue light beam, for transmiting green fluorescence light beam, reflection blue light beam and red beam；
Blue laser beams are homogenized after the slant reflection of the first prism through fly's-eye lens, then through the 4th dichronic mirror transmit into
Green LED light source surface is mapped to produce with the opposite excitated fluorescent powder layer of light beam produced by the luminescence chip of green LED light source itself
Raw green fluorescence light beam；The green fluorescence light beam is transmitted via the 4th dichronic mirror；
The blue light beam and red beam are via closing light after the 3rd dichronic mirror transmission or reflection and via the 4th dichronic mirror
Reflection；
Closing light forms white light light after the blue light beam, red beam and green fluorescence light beam are transmitted and reflected through the 4th dichronic mirror
Beam outgoing.
5. projection lighting optical path according to claim 4, it is characterised in that the central optical axis of the red LED light source with
The central optical axis of green LED light source are parallel, and central optical axis and the central optical axis of blue laser light source with blue led light source
Vertically；Or the central optical axis of the blue led light source are parallel with the central optical axis of green LED light source, and with red LED light
The central optical axis in source and the central optical axis of blue laser light source are vertical；First dichronic mirror and the second dichronic mirror and red LED
The angle in the central optical axis direction of light source, blue led light source, green LED light source and blue laser light source is 45 °；It is described
The central optical axis of green LED light source are overlapped with the central optical axis of fly's-eye lens.
6. projection lighting optical path according to claim 1, it is characterised in that
The color separation microscope group includes：The 5th dichronic mirror be arrangeding in parallel and the 6th dichronic mirror, and the first prism wedge；
First prism is on non-straight angle prism, the emitting light path for being arranged on blue laser light beam, for reflecting blue laser
Light beam；
5th dichronic mirror is arranged on the blue led light source, the emitting light path of red LED light source, for transmiting or instead
Blue light beam and red beam are penetrated, and carries out closing light；
6th dichronic mirror is arranged at the green LED light source device, and the red for transmiting and reflecting through the 5th dichronic mirror
In the light path of the outgoing beam of light beam and blue light beam, for reflection green fluorescent light beam and blue laser beams, and transmission
Blue light beam and red beam after 3rd dichronic mirror closing light；
First prism wedge is arranged in the light path of the blue laser light beam through the first prismatic reflection, including the first reflecting surface
With the second reflecting surface, first reflecting surface and the second reflecting surface be non-parallel, and first reflecting surface is used for reflection red light beam,
Blue light beam and the green fluorescence light beam, second reflecting surface are used to reflect blue laser light beam；
The blue laser beams first after one of face total reflection through the first prism, incide first prism wedge
Second reflecting surface, then the 6th dichronic mirror is incided through the reflective surface of the first prism wedge second, through the 6th color separation
The light beam that mirror is reflected produced by inciding green LED light source surface and the green LED light source luminescence chip of itself excites glimmering in opposite directions
Light bisque produces green fluorescence light beam, and the green fluorescence light beam is via the 6th dichroic mirror；
The blue light beam and red beam are via closing light after the 5th dichronic mirror transmission or reflection and via the 6th dichronic mirror
Transmission；
Closing light forms white light light after the blue light beam, red beam and green fluorescence light beam are transmitted and reflected through the 6th dichronic mirror
Beam incides first prism wedge, and the outgoing after the first reflective surface of first prism wedge.
7. projection lighting optical path according to claim 6, it is characterised in that the central optical axis of the red LED light source with
The central optical axis of green LED light source are parallel, hung down with the central optical axis of blue led light source and the central optical axis of blue laser light source
Directly, or the blue color LED light source central optical axis it is parallel with the central optical axis of green LED light source, and red LED light source
Central optical axis and blue laser light source central optical axis it is vertical；5th dichronic mirror and the 6th dichronic mirror and red LED light
The angle of the central optical axis of source, blue led light source, green LED light source and blue laser light source is 45 °.
8. projection lighting optical path according to claim 1, it is characterised in that
The color separation microscope group includes：7th dichronic mirror, and the second prism wedge；
First prism is on non-straight angle prism, the emitting light path for being arranged on blue laser light beam, for reflecting blue laser
Light beam；
7th dichronic mirror is arranged on the blue led light source, the emitting light path of red LED light source, for transmiting or instead
Penetrate blue light beam and red beam and carry out closing light；
Second prism wedge is arranged in the light path of the blue laser light beam through the first prismatic reflection, including the 3rd reflecting surface
With the 4th reflecting surface, the 3rd reflecting surface and the 4th reflecting surface be non-parallel, and the 3rd reflecting surface is used for thoroughly or refraction is red
Light beam, blue light beam and the reflection green fluorescence light beam, the 4th reflecting surface are used for thoroughly or reflected red beam, blue light
Beam, and reflect blue laser light beam；
The blue laser beams first after one of face reflection through the first prism, incide the of second prism wedge
Four reflectings surface, then incide green LED light source surface and green LED light source through the reflective surface of the second prism wedge the 4th
The opposite excitated fluorescent powder layer of light beam produced by the luminescence chip of itself produces green fluorescence light beam；The green fluorescence light beam warp
By the 3rd reflective surface of the second prism wedge；
The blue light beam and red beam are via closing light after the 7th dichronic mirror transmission or reflection and via the described second wedge-shaped rib
3rd reflecting surface of mirror and the transmission of the 4th reflecting surface；
After the blue light beam, red beam and green fluorescence the light beam transmission of the 3rd reflecting surface and reflection through the second prism wedge
Closing light formation white light beam outgoing.
9. a kind of projection arrangement, it includes the projection lighting optical path described in above-mentioned 1-8 any one, it is characterised in that also include：
Display chip and projection lens group.
10. according to the projection arrangement described in claim 9, it is characterised in that the indigo plant for transmiting and/or reflecting via the color separation microscope group
Color beam, red beam and green fluorescence light beam synthesis white light beam enter after fly's-eye lens homogenization, then by the first rib
Mirror and the second right-angle prism incide display chip；The display chip is parallel with a right-angle side of the second right-angle prism.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349749.0A CN106950788A (en) | 2017-05-17 | 2017-05-17 | A kind of projection lighting optical path and its projection arrangement |
| PCT/CN2017/085734 WO2018209723A1 (en) | 2017-05-17 | 2017-05-24 | Projection illumination optical path and projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349749.0A CN106950788A (en) | 2017-05-17 | 2017-05-17 | A kind of projection lighting optical path and its projection arrangement |
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| CN106950788A true CN106950788A (en) | 2017-07-14 |
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|---|---|---|---|
| CN201710349749.0A Pending CN106950788A (en) | 2017-05-17 | 2017-05-17 | A kind of projection lighting optical path and its projection arrangement |
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| WO (1) | WO2018209723A1 (en) |
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| CN107748474A (en) * | 2017-10-16 | 2018-03-02 | 广景视睿科技（深圳）有限公司 | A kind of colour mixture luminescent method and projection arrangement for improving projection brightness |
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