CN109407451A - Two-color laser light source and laser projection - Google Patents
Two-color laser light source and laser projection Download PDFInfo
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- CN109407451A CN109407451A CN201710712834.9A CN201710712834A CN109407451A CN 109407451 A CN109407451 A CN 109407451A CN 201710712834 A CN201710712834 A CN 201710712834A CN 109407451 A CN109407451 A CN 109407451A
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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
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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
- G03B21/206—Control of light source other than position or intensity
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a kind of two-color laser light source and laser projections, belong to field of projection display.Laser light source includes the first blue laser, the second blue laser, red laser, fluorescent wheel and light combination component, and fluorescent wheel is provided with green fluorescence area and transmission area；Light combination component is used to for the first blue laser that the first blue laser issues being transmitted to fluorescent wheel, and after receiving green fluorescence caused by the first blue laser irradiation green fluorescence area, green fluorescence is transmitted to light collecting part；It is also used to receive the second blue laser of the second blue laser sending, and the second blue laser is transmitted to light collecting part；It is also used to receive and is issued by red laser and be transmitted to light collecting part via the red laser of transmissive region, and by red laser.The light path system that the present invention solves two-color laser light source in the related technology is complex, the larger problem of the volume of two-color laser light source.The present invention is used for the design of two-color laser light source.
Description
Technical field
The present invention relates to field of projection display, in particular to a kind of two-color laser light source and laser projection.
Background technique
Laser light source is a kind of brightness height, high directivity, the light source for issuing monochromatic coherent light beam, due to laser light source
Plurality of advantages is gradually applied to field of projection display in recent years.Compared with traditional monochromatic laser light source, two-color laser light source
The color purity, chroma-luminance and colour gamut that light source can be improved preferably meet the color demand of laser projection.
In the related technology, as shown in Figure 1, two-color laser light source generally comprise blue laser 101, red laser 102,
Fluorescent wheel 103, light-beam forming unit 104, light combination component 105 and light collecting part 106.The two-color laser light source goes out light principle
Include: blue laser 101 issue blue laser after light-beam forming unit 104, fluorescence is reflexed to by light combination component 105
Wheel 103 transmits from fluorescent wheel 103 and arrives again at light combination component 105 after relaying loop optical path, anti-by light combination component 105
Penetrate output；Blue laser exposes on fluorescent wheel 103, fluorescent wheel 103 can be excited to issue green fluorescence, the green fluorescence is by closing
The transmission output of light component 105；The red laser that red laser 102 issues is after light-beam forming unit 104, by light combination component
105 reflection outputs；After the light of three kinds of colors enters light collecting part, the illumination functions of laser light source are realized.
But in the related technology, in order to excite fluorescent wheel to issue green fluorescence, the optic path path of blue laser is more
Complexity, so that the light path system of two-color laser light source is complex, the volume of two-color laser light source is larger.
Summary of the invention
In order to which the light path system for solving two-color laser light source in the related technology is complex, the volume of two-color laser light source compared with
Big problem, the embodiment of the invention provides a kind of two-color laser light source and laser projections.The technical solution is as follows:
On the one hand, the present invention provides a kind of two-color laser light source, the laser light source includes the first blue laser, the
Two blue lasers, red laser, fluorescent wheel and light combination component, the fluorescent wheel are provided with green fluorescence area and transmission area；
The light combination component is used to the first blue laser that first blue laser issues being transmitted to the fluorescence
Wheel, and after receiving first blue laser and irradiating green fluorescence caused by the green fluorescence area, by the green
Fluorescence is transmitted to light collecting part；
The light combination component is also used to receive the second blue laser that second blue laser issues, and by described the
Two blue lasers are transmitted to the smooth collecting part；
The light combination component, which is also used to receive, to be issued by the red laser and via the red of the transmissive region
Laser, and the red laser is transmitted to the smooth collecting part.
On the other hand, the present invention provides a kind of laser projection, the laser projection includes any institute of upper one side
The two-color laser light source stated.
Technical solution provided in an embodiment of the present invention has the benefit that
Two-color laser light source and laser projection provided in an embodiment of the present invention, by issuing the first blue laser
Blue laser can excite fluorescent wheel to issue green fluorescence, then be sent out the green fluorescence, the second blue laser by light combination component
It is transmitted to light collecting part after the red laser acquisition that blue laser and red laser out issues, with the relevant technologies phase
Than the blue laser that blue laser issues is not necessarily to transmit in relaying loop optical path, and there is no need in two-color laser light source
Setting relaying loop optical path, simplifies the light path system of two-color laser light source, while reducing the volume of two-color laser light source.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one of the relevant technologies two-color laser light source；
Fig. 2 is a kind of structural schematic diagram of two-color laser light source provided in an embodiment of the present invention；
Fig. 3-1 is a kind of schematic diagram of fluorescent wheel provided in an embodiment of the present invention；
Fig. 3-2 is the schematic diagram of another fluorescent wheel provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another two-color laser light source provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of filter wheel provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Laser light source is a kind of brightness height, high directivity, the light source for issuing monochromatic coherent light beam, due to laser light source
Plurality of advantages is gradually applied to field of projection display in recent years.
Exemplary, laser light source can be applied to laser projection.Laser projection can issue at least one color
Light is to realize the display of image.Primary colours refer to " Essential colour " that cannot be obtained by the mixing preparation of other colors.With not
In proportion by mix of basic colors, it can produce out other new colors.Laser projection generally produces the light of primary colours to realize figure
The display of shape.The color that general laser projection generates is three primary colours, i.e. three kinds of colors of red, green, blue, with the hair of science and technology
Exhibition, laser projection also can produce two primary colours or five primary colours, the embodiment of the present invention are not construed as limiting this.
There are many laser light sources of current laser projection, which may include: at least one laser, swashs
Radiant can launch the light of at least one color.The usual laser light source can also include: fluorescent wheel (also referred to as iridescent
Wheel), fluorescent wheel can be used as Wavelength converter.Laser light source can be monochromatic laser light source (i.e. include a laser and
The laser generates a kind of color), being also possible to two-color laser light source (includes two lasers and each laser generation one
Kind color), to issue the laser of one or two kinds of colors, it is provided with fluorescent powder on fluorescent wheel, corresponding face can be inspired
The color of the fluorescence of color, the laser for issuing with laser collectively constitutes three primary colours, mentions as projection light source to x ray machine part
For illumination.
Compared with monochromatic laser light source, the color purity, chroma-luminance and color of light source is can be improved in two-color laser light source
Domain preferably meets the color demand of laser projection.
The embodiment of the invention provides a kind of two-color laser light sources, as shown in Fig. 2, the laser light source includes that the first blue swashs
Light device 21a, the second blue laser 21b, red laser 22, fluorescent wheel 23 and light combination component 24, fluorescent wheel 23 are provided with green
Color phosphor region and transmission area.
Light combination component 24 is used to the first blue laser 21a the first blue laser issued being transmitted to fluorescent wheel 23, and
After receiving green fluorescence caused by the first blue laser irradiation green fluorescence area, green fluorescence is transmitted to light collection portion
Part 25.
Light combination component 24 is also used to receive the second blue laser of the second blue laser 21b sending, and blue by second
Laser is transmitted to light collecting part 25.
Light combination component 24, which is also used to receive, to be issued by red laser 22 and via the red laser of transmissive region, and will
Red laser is transmitted to light collecting part 25.
As shown in Fig. 2, the first blue laser 21a, the second blue laser 21b, light combination component 24 and light collecting part
25 are arranged in the first side of fluorescent wheel 23, and second side of fluorescent wheel 23 is arranged in red laser 22, and the setting of light combination component 24 exists
Between first blue laser 21a and fluorescent wheel 23, and light combination component 24 is arranged in the second blue laser 21b and light collection portion
Between part 25.
It should be noted that laser provided in an embodiment of the present invention can be laser array.
Optionally, it as shown in Fig. 2, two-color laser light source can also include multiple light-beam forming units and reflection unit E, is somebody's turn to do
Multiple light-beam forming units include the first light-beam forming unit A, the second light-beam forming unit B, third light-beam forming unit C and the
Four light-beam forming unit D.
Wherein, the first light-beam forming unit A, third light-beam forming unit C and the 4th light-beam forming unit D can be to look in the distance
Mirror system (in practical application, which may include a convex lens and a concavees lens), for sending out laser
Parallel laser out is compressed, and to reduce the area of light beam, and compressed laser is still parallel laser, can be improved parallel
Transmitance of the laser in back-end optical device.
Second light-beam forming unit B can be made of two lens, and the first blue laser after two lens focus by shining
Be incident upon on fluorescent wheel, fluorescent wheel issue green fluorescence and red laser issue red laser can by two lens into
Enter light combination component after the processing of row collimation, improves out the uniformity of light.
Second light-beam forming unit B can also be made of one, three or four lens, and the embodiment of the present invention is to composition the
The lens numbers of two light-beam forming unit B are without limitation.
The optic path process of two-color laser light source provided in an embodiment of the present invention includes: the first blue laser by first
It after light-beam forming unit A, transmits from light combination component 24, is radiated on fluorescent wheel 23 using the second light-beam forming unit B, excite
Green emitting phosphor issues green fluorescence, which, which is reflected after the second light-beam forming unit B by light combination component 24, exports；
Second blue laser is transmitted from light combination component 24 and is exported after third light-beam forming unit C；Red laser 22 issues red
The red laser is reflexed to fluorescent wheel 23 after the 4th light-beam forming unit D, by reflection unit E by color laser, which swashs
Light reflects output after the transmission of fluorescent wheel 23, by the second light-beam forming unit B and by light combination component 24.The light of three kinds of colors into
It can be mixed to form white light after entering light collecting part 25, realize the illumination functions of two-color laser light source.
Wherein, reflection unit E can be reflector plate, which can place with red laser in 45 ° of angles, so that
After the red laser that the red laser that must be horizontally arranged issues is by reflector plate reflection, fluorescent wheel can be vertically injected, is made red
Color laser can be transmitted according to preset optical path, to ensure that the stability of laser transmission.
Optionally, light collecting part can be optical wand.
In conclusion two-color laser light source provided in an embodiment of the present invention, glimmering by enabling the first blue laser to excite
Halo issues green fluorescence, then by light combination component is issued the green fluorescence, the second blue laser and red laser red
It is transmitted to light collecting part after the acquisition of color laser, compared with the relevant technologies, the blue laser that blue laser issues is not necessarily in
After transmitting in loop optical path, there is no need to the setting relaying loop optical paths in two-color laser light source, simplify two-color laser light source
Light path system, while reducing the volume of two-color laser light source.
In embodiments of the present invention, the first blue laser, the second blue laser and red laser are timing point
It is bright.Optionally, the first blue laser, the second blue laser and red laser light the moment difference.
Optionally, as shown in figure 3-1, fluorescent wheel may include green fluorescence area Y and transmission area K, the table of green fluorescence area Y
Face is provided with green emitting phosphor, and the surface of transmission area Y is provided with the first diffuser, green fluorescence area and the fan-shaped row of transmission area
Cloth, the fluorescent wheel can issue to timing green fluorescence and transmission red laser in rotation.
Wherein, the first diffuser can be micron-sized particle.
In practical application, fluorescent wheel can be rotated according to preset velocity of rotation, when the green fluorescence area of fluorescent wheel
When being directed at the second light-beam forming unit (irradiation area that green fluorescence area is laser), the first blue laser, and second are lighted
Blue laser and red laser are not lighted；When the transmission area of fluorescent wheel is directed at the second light-beam forming unit, (transmission area is
The irradiation area of laser) when, red laser is lighted, and the first blue laser and the second blue laser are not lighted.
Since the central area of fluorescent wheel can not be directed at the second light-beam forming unit, it that is to say that the central area of fluorescent wheel is appointed
The meaning moment can not become the irradiation area of laser, therefore as shown in figure 3-2, and fluorescent wheel can also include blank area Q, the blank
Area Q is located at the central area of fluorescent wheel, and green fluorescence area Y is located at the periphery of blank area Q, the fan-shaped ring-type of green fluorescence area Y
Arrangement, the fan-shaped arrangement of transmission area K.
As shown in figure 4, light combination component may include: dichroic piece 241, dichroic piece 241 is arranged in light collecting part 25
Incident side, for dichroic piece 241 for transmiting the first blue laser and the second blue laser, reflection green fluorescence and reflection are red
The red laser that color laser 22 issues.
Optionally, as shown in figure 4, light combination component can also include fixed diffusion sheet 242, the fixation diffusion sheet is for homogenizing
First blue laser, due to the excitation light that the first blue laser is fluorescent wheel, if light beam is not homogenized, the hot spot of laser is strong
Degree is unevenly distributed, and energy is concentrated, and when being directly incident on fluorescence wheel surface, the laser facula that energy is concentrated may make fluorescent wheel table
Calcination occurs for face, damages fluorescent wheel, causes laser that fluorescent wheel can not normally be excited to issue fluorescence.
Further, as shown in figure 4, laser light source can also include: filter wheel 26, which is arranged in dichroic
Between piece 241 (light combination component) and the incident side of light collecting part 25, as shown in figure 5, the filter wheel may include feux rouges diffusion
Area R, blue filter area Z and green filter area G.Filter wheel, being capable of timing ground transmitting blue laser, red laser in rotation
And green fluorescence.
Specifically, filter wheel in rotation, when the irradiation area of filter wheel is blue filter area, is lighted the second blue and is swashed
Light device, while the first blue laser and red laser are not lighted；When the irradiation area of filter wheel is feux rouges diffusion region,
Red laser is lighted, while the first blue laser and the second blue laser are not lighted；When the irradiation area of filter wheel
When for green filter area, the first blue laser is lighted, while the second blue laser and red laser are not lighted, thus
With realizing timing transmitting blue laser, red laser and green fluorescence.
Further, as shown in figure 4, light combination component can also include condenser lens 243, the condenser lens 243 setting exists
Between dichroic piece 241 and filter wheel 26.Since the beam spread angle of the light of dichroic piece transmission or reflection is greater than light collection portion
When part collection angle, the collection efficiency that will lead to light is low, influences projection light source brightness, and condenser lens can be used for will be from dichroic
The second blue laser, the green fluorescence of reflection and the red laser of reflection of piece transmission are focused respectively, are improved light and are collected
Component is to the collection efficiency of light, to improve the brightness of projection light source.
Optionally, in filter wheel provided in an embodiment of the present invention, the surface of feux rouges diffusion region is provided with the second diffuser,
The surface in blue filter area is provided with third diffuser.Second diffuser and third diffuser can be micron-sized particle,
The particle diameter of third diffuser can be identical as the particle diameter of the second diffuser.Wherein, the particle diameter of the second diffuser
It is different from the particle diameter of the first diffuser that the surface of the transmission area of fluorescent wheel is arranged.
Due to the high coherence of laser, it is inevitably generated speckle effect.So-called speckle refers to that coherent source is irradiating
When coarse object, since wavelength is identical, phase-constant will generate interference in space, have portion in space for light after scattering
It point interferes and mutually to grow, there is part to interfere cancellation, it is final the result is that occurring on the screen granular light and dark
Spot, that is, some unfocused smudgings, viewing is also easy to produce spinning sensation for a long time, this undoubtedly will cause perspective view image quality
The decline of amount reduces the viewing experience of user.Compared to blue laser, the coherence length of red laser is longer, has higher
Coherence, therefore speckle phenomena is even more serious.
In embodiments of the present invention, the red laser that red laser issues is when by fluorescent wheel, first by fluorescent wheel
The red laser is carried out first time diffusion by the first diffuser on transmission area, into after light combination component, by light combination component
The second diffuser on the feux rouges diffusion region of filter wheel carries out second to the red laser and spreads, due to the grain of the first diffuser
Sub- diameter is different from the particle diameter of the second diffuser, therefore to the diffusion angle of red laser difference, can make red laser
Generate more independent random phase pattern；Further, since fluorescent wheel and filter wheel are all rotation, the diffuser of movement
Random phase can be further increased, the coherence of red laser can be destroyed, preferably for the laser light source of projection
It is capable of forming more independent random phase patterns on projection images, and the number of independent random phase pattern is more, utilizes
The phenomenon that integral action of human eye, light and shade spot, is weaker, so as to effectively weaken the speckle effect of red laser, improves
The optical quality of two-color laser light source.
Exemplary, the particle diameter of the first diffuser can be greater than the particle diameter of the second diffuser, for example, the first diffusion
The particle diameter of body is 100 microns, and the particle diameter of the second diffuser and third diffuser is 30 microns.First diffuser can be with
Red laser is first broken up, then is accurately reset by phase of second diffuser to red laser.
It should be noted that the particle diameter of the first diffuser might be less that the particle diameter of the second diffuser, such as
The particle diameter of first diffuser is 30 microns, and the particle diameter of the second diffuser and third diffuser is 100 microns.
In addition, the third diffuser in the blue filter area of filter wheel is used to homogenize the second blue laser, to blue laser
Play the role of dissipation spot；Green filter area on filter wheel makes the green light into light collecting part for filtering green fluorescence
It is purer.
In conclusion two-color laser light source provided in an embodiment of the present invention, glimmering by enabling the first blue laser to excite
Halo issues green fluorescence, then by light combination component is issued the green fluorescence, the second blue laser and red laser red
It is transmitted to light collecting part after the acquisition of color laser, compared with the relevant technologies, the blue laser that blue laser issues is not necessarily in
After transmitting in loop optical path, there is no need to the setting relaying loop optical paths in two-color laser light source, simplify two-color laser light source
Light path system, while the volume of two-color laser light source is reduced, in addition, passing through the surface setting of the transmission area in fluorescent wheel the
The second diffuser is arranged on the surface of the feux rouges diffusion region of filter wheel in one diffuser, realizes higher to coherence red sharp
The diffusion twice of light plays preferable dissipation spot effect to red laser, to improve the optics product of two-color laser light source
Matter.
The embodiment of the invention provides a kind of laser projection, which may include Fig. 2 or shown in Fig. 4 double
Color laser light source.
The foregoing is merely alternative embodiments of the invention, are not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of two-color laser light source, which is characterized in that the laser light source includes the first blue laser, the second blue laser
Device, red laser, fluorescent wheel and light combination component, the fluorescent wheel are provided with green fluorescence area and transmission area；
The light combination component is used to the first blue laser that first blue laser issues being transmitted to the fluorescent wheel, and
After receiving first blue laser and irradiating green fluorescence caused by the green fluorescence area, the green fluorescence is passed
Transport to light collecting part；
The light combination component is also used to receive the second blue laser that second blue laser issues, and blue by described second
Color laser is transmitted to the smooth collecting part；
The light combination component, which is also used to receive, to be issued by the red laser and via the red laser of the transmissive region,
And the red laser is transmitted to the smooth collecting part.
2. laser light source according to claim 1, which is characterized in that
First blue laser, second blue laser, the light combination component and the smooth collecting part setting exist
Second side of the fluorescent wheel is arranged in first side of the fluorescent wheel, the red laser, and the light combination component setting exists
Between first blue laser and the fluorescent wheel, and the light combination component is arranged in second blue laser and institute
It states between light collecting part.
3. laser light source according to claim 1, which is characterized in that the light combination component includes dichroic piece, and described two
The incident side of the smooth collecting part is set to color chips；
The dichroic piece is used to transmit the blue laser that second blue laser issues, reflect the green fluorescence and
Reflect the red laser that the red laser issues.
4. laser light source according to claim 1, which is characterized in that it is glimmering that the surface in the green fluorescence area is provided with green
Light powder, the surface of the transmission area are provided with the first diffuser.
5. laser light source according to claim 4, which is characterized in that the fan-shaped arrangement in the green fluorescence area or eccentric circular ring
Shape arrangement.
6. laser light source according to any one of claims 1 to 5, which is characterized in that the laser light source further includes filter wheel,
The filter wheel is arranged between the light combination component and the incident side of the smooth collecting part, and the filter wheel includes that feux rouges expands
Dissipate area, blue filter area and green filter area；
It is glimmering can to transmit to timing the blue laser, the red laser and the green in rotation for the filter wheel
Light.
7. laser light source according to claim 6, which is characterized in that it is unrestrained that the surface of the feux rouges diffusion region is provided with second
The surface of beam, the blue filter area is provided with third diffuser.
8. laser light source according to claim 7, which is characterized in that the particle diameter of second diffuser with it is described glimmering
The particle diameter of first diffuser of the surface setting of the transmission area of halo is different.
9. laser light source according to claim 8, which is characterized in that the particle diameter of first diffuser be 95~
105 microns, the particle diameter of second diffuser is 25~35 microns；
Alternatively, the particle diameter of first diffuser is 25~35 microns, the particle diameter of second diffuser is 95~
105 microns.
10. laser light source according to claim 1, which is characterized in that first blue laser, second blue
Laser and the red laser are that timing is lighted.
11. a kind of laser projection, which is characterized in that the laser projection includes any pair of claims 1 to 10
Color laser light source.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010961010.7A CN112099295B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
| CN202010962470.1A CN112099296B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
| CN201710712834.9A CN109407451B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
| PCT/CN2017/117868 WO2019033672A1 (en) | 2017-08-18 | 2017-12-22 | Dual color laser light source and laser projector |
| US15/857,591 US10139716B1 (en) | 2017-08-18 | 2017-12-28 | Dual-color laser light source and laser projector |
| EP18150097.6A EP3444668B1 (en) | 2017-08-18 | 2018-01-02 | Dual-color laser light source and laser projector |
| US16/175,725 US10514595B2 (en) | 2017-08-18 | 2018-10-30 | Dual-color laser light source and laser projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712834.9A CN109407451B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010962470.1A Division CN112099296B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
| CN202010961010.7A Division CN112099295B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109407451A true CN109407451A (en) | 2019-03-01 |
| CN109407451B CN109407451B (en) | 2020-10-09 |
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| CN201710712834.9A Active CN109407451B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
| CN202010961010.7A Active CN112099295B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
| CN202010962470.1A Active CN112099296B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
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| CN202010961010.7A Active CN112099295B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
| CN202010962470.1A Active CN112099296B (en) | 2017-08-18 | 2017-08-18 | Two-color laser light source and laser projector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901907A (en) * | 2019-03-15 | 2019-06-18 | 北京星网锐捷网络技术有限公司 | A kind of method and server of transfer of virtual desktop |
| CN111983878A (en) * | 2019-05-22 | 2020-11-24 | 中强光电股份有限公司 | Optical rotating device, illumination system, and projection device |
| US11503258B2 (en) | 2020-02-05 | 2022-11-15 | Coretronic Corporation | Light source module and projection device |
| US11874590B2 (en) | 2021-05-12 | 2024-01-16 | Coretronic Corporation | Illumination system and projection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376636A (en) * | 2012-04-26 | 2013-10-30 | 索尼公司 | Display unit and illumination device |
| CN103399453A (en) * | 2013-08-23 | 2013-11-20 | 中国华录集团有限公司 | Light source device of projector, capable of enhancing brightness |
| CN203745788U (en) * | 2014-01-03 | 2014-07-30 | 深圳市亿思达显示科技有限公司 | Dual laser light source system |
| US20140226306A1 (en) * | 2013-01-29 | 2014-08-14 | Texas Instruments Incorporated | Color Sequence Illumination System with Phosphor Light Filter |
| CN105093794A (en) * | 2015-06-03 | 2015-11-25 | 海信集团有限公司 | Double-color laser light source |
| CN105573030A (en) * | 2015-12-18 | 2016-05-11 | 海信集团有限公司 | Light source and laser projection apparatus |
| CN106597785A (en) * | 2015-10-14 | 2017-04-26 | 海信集团有限公司 | Fluorescent wheel and two-color laser source |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5567844B2 (en) * | 2010-01-29 | 2014-08-06 | 日立コンシューマエレクトロニクス株式会社 | Projection display device |
| JP5914878B2 (en) * | 2011-04-20 | 2016-05-11 | パナソニックＩｐマネジメント株式会社 | Light source device and projection display device |
| CN202267819U (en) * | 2011-09-28 | 2012-06-06 | 苏州智能泰克有限公司 | Polarizing-type projection display device |
| KR20140003060A (en) * | 2012-06-29 | 2014-01-09 | 파워옵틱스 주식회사 | Projector module |
| DE102012213036A1 (en) * | 2012-07-25 | 2014-01-30 | Osram Gmbh | LIGHTING DEVICE WITH FLUORESCENT WHEEL |
| JP6237627B2 (en) * | 2012-08-02 | 2017-11-29 | 日本電気株式会社 | Projection type display device and projection light generation method |
| CN204437978U (en) * | 2014-12-30 | 2015-07-01 | 深圳市亿思达科技集团有限公司 | A kind of laser television light-source system based on liquid crystal cell |
| CN106154713B (en) * | 2015-04-09 | 2018-05-15 | 深圳市光峰光电技术有限公司 | Light-source system and optical projection system |
| CN105388692A (en) * | 2015-12-30 | 2016-03-09 | 中国华录集团有限公司 | Projector red and blue laser light source system |
| CN106773488B (en) * | 2017-01-13 | 2018-07-24 | 明基智能科技（上海）有限公司 | Laser projection |
-
2017
- 2017-08-18 CN CN201710712834.9A patent/CN109407451B/en active Active
- 2017-08-18 CN CN202010961010.7A patent/CN112099295B/en active Active
- 2017-08-18 CN CN202010962470.1A patent/CN112099296B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376636A (en) * | 2012-04-26 | 2013-10-30 | 索尼公司 | Display unit and illumination device |
| US20140226306A1 (en) * | 2013-01-29 | 2014-08-14 | Texas Instruments Incorporated | Color Sequence Illumination System with Phosphor Light Filter |
| CN103399453A (en) * | 2013-08-23 | 2013-11-20 | 中国华录集团有限公司 | Light source device of projector, capable of enhancing brightness |
| CN203745788U (en) * | 2014-01-03 | 2014-07-30 | 深圳市亿思达显示科技有限公司 | Dual laser light source system |
| CN105093794A (en) * | 2015-06-03 | 2015-11-25 | 海信集团有限公司 | Double-color laser light source |
| CN106597785A (en) * | 2015-10-14 | 2017-04-26 | 海信集团有限公司 | Fluorescent wheel and two-color laser source |
| CN105573030A (en) * | 2015-12-18 | 2016-05-11 | 海信集团有限公司 | Light source and laser projection apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901907A (en) * | 2019-03-15 | 2019-06-18 | 北京星网锐捷网络技术有限公司 | A kind of method and server of transfer of virtual desktop |
| CN109901907B (en) * | 2019-03-15 | 2022-05-20 | 北京星网锐捷网络技术有限公司 | Method and server for transmitting virtual desktop |
| CN111983878A (en) * | 2019-05-22 | 2020-11-24 | 中强光电股份有限公司 | Optical rotating device, illumination system, and projection device |
| CN111983878B (en) * | 2019-05-22 | 2021-10-29 | 中强光电股份有限公司 | Optical rotating device, illumination system, and projection device |
| US11503258B2 (en) | 2020-02-05 | 2022-11-15 | Coretronic Corporation | Light source module and projection device |
| US11874590B2 (en) | 2021-05-12 | 2024-01-16 | Coretronic Corporation | Illumination system and projection device |
Also Published As
| Publication number | Publication date |
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| CN112099295A (en) | 2020-12-18 |
| CN109407451B (en) | 2020-10-09 |
| CN112099296A (en) | 2020-12-18 |
| CN112099295B (en) | 2021-11-05 |
| CN112099296B (en) | 2021-11-05 |
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