CN109212882A - Laser projection optics module and laser projection device - Google Patents
Laser projection optics module and laser projection device Download PDFInfo
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- CN109212882A CN109212882A CN201811377793.3A CN201811377793A CN109212882A CN 109212882 A CN109212882 A CN 109212882A CN 201811377793 A CN201811377793 A CN 201811377793A CN 109212882 A CN109212882 A CN 109212882A
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- Prior art keywords
- laser projection
- projection optics
- laser
- optics module
- optical fiber
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Classifications
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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
- G03B21/145—Housing details, e.g. position adjustments thereof
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
- G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
- G02B26/0858—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD the reflecting means being moved or deformed by piezoelectric means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/101—Scanning systems with both horizontal and vertical deflecting means, e.g. raster or XY scanners
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/103—Scanning systems having movable or deformable optical fibres, light guides or waveguides as scanning elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/48—Laser speckle optics
-
- 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
Abstract
The invention discloses a kind of laser projection optics module, including shell, actuator, optical fiber and relaying microscope group inside the shell is encapsulated；The both ends of actuator are respectively fixing end and free end, and optical fiber is fixed on the actuator and one end beyond the free end of actuator forms optical fiber cantilever；Before being with laser projection optics module beam projecting direction, relaying microscope group is encapsulated in case nose and is located in the light optical path out of optical fiber；In outer casing back, it is provided with the vibration device that can drive entire laser projection optics module vibration.The present invention provides a kind of completely new laser projection optics modules with dissipation spot function, laser-projector or laser television using the laser projection optics module, it does not need to cooperate special screen that good display effect can be realized, the hardware cost of laser-projector or laser television can be effectively reduced, conducive to the large-scale production of laser television.
Description
Technical field
The present invention relates to laser display field more particularly to a kind of laser projection optics modules and laser projection device.
Background technique
Laser display technology is the display technology using red, green, blue tricolor laser as light source, as a new generation's display
Technology not only inherits all advantages of digital display technique, but also color domain coverage ratio is up to the recognizable color space of human eye
90%, color that can be most abundant, gorgeous with true reappearance objective world provides the expressive force more shaken, thus be considered as
The revolution of display field.
However, due to the high coherence of laser light source, the laser projection as light source on the screen when, between scattered beam
Interference will lead to and generate the bright blackening point of random distribution a kind of, i.e. laser speckle in projection image planes.Speckle there are serious
The image quality for affecting display picture, reduces image resolution ratio and contrast, becomes one of laser projection display development
Significant obstacle.Therefore, the influence that must cut down speckle noise in laser display design as much as possible, only effectively inhibits scattered
Spot, laser display technology are possible to become the mainstream of display industry of new generation.
Currently, have proposed a variety of solutions both at home and abroad around speckle issue, for example, introduce in the optical path rotating diffuser plate,
Or rotating optical element, vibrating mirror, random phase piece etc.；For example increase the breadth of spectrum line of light source again；It is superimposed by pulse laser
Mode etc..
What it is to numerous dissipation spot scheme Successful utilizations is that Mitsubishi in 2007 is showing a large-size screen monitors released in the market
Curtain laser television, the video screen color rendering domain are twice wider than liquid crystal display panel.The dissipation spot scheme of the laser television is adopted
Be exactly the method for moving screen, the screen being made up of two scatterers being located next to, one of screen fixes, another
Small movements are done next to the screen of fixed mask, in this way due to the movement of screen, so that the speckle in display image is folded
Add, due to the persistence effect of human eye, observer is with regard to the speckle on imperceptible screen, i.e., by planar Rotation screen to protect
Screen persistent movement is held to be superimposed speckle pattern, reduces the influence of speckle.Two pieces of screens are needed in the system, both increase cost
Main screw lift is affected again, and needs biggish driving force and increases power consumption, and practical operability is not strong.And shield in movement
In curtain dissipation spot method, light is dispersed on movement screen and directly reaches fixed mask, if the scattering angle of scatterer compares optical path
The numerical aperture or f-number of middle lens are big, and a part of light just will loss.Additionally, due to needing to consider television set appearance, again
The problems such as amount, reliability, service life and noiseless, and with the development of large-size screen monitors TV, video screen size becomes greatly, shake screen
For curtain scheme in the case where meeting above-mentioned requirements, screen construction design difficulty is very big, and also the laser of Mitsubishi is big Just because of this
Screen television is expensive, can only walk high-end consumption route, cannot produce in enormous quantities.
And the slightly lower laser television of price on the market at present, it does not use three color laser instead of generally, is swashed using monochromatic
Light or two-color laser are excited into three colors by fluorescent powder, since fluorescent powder excites wide spectrum itself the speckle effect very little generated,
And the even mating plate of rotation would generally be used inside the equipment of this structure, can further dissipate spot, therefore they do not need above
The shake screen mentioned, it is only necessary to common anti-light curtain, advantage of lower cost, but display effect swashs far away from real three color
Photoelectricity view, actually colour gamut and contrast are all far short of what is expected compared to real three colors laser.
How in the way of low cost, dissipation spot is realized, it has also become the technical problem that laser display field must overcome.
Summary of the invention
The object of the present invention is to provide a kind of laser projection optics modules, realize dissipation spot with the mode of low cost.
In order to achieve the above-mentioned object of the invention, it the present invention provides a kind of laser projection optics module, including shell, is encapsulated in
Actuator, optical fiber and relaying microscope group in shell；The both ends of actuator are respectively fixing end and free end, and optical fiber is fixed on actuating
On device and one end forms optical fiber cantilever beyond the free end of actuator；Before being with laser projection optics module beam projecting direction,
Relaying microscope group is encapsulated in case nose and is located in the light optical path out of optical fiber；In outer casing back, entire laser can be driven by being provided with
The vibration device of projection optics mould group vibration.
Preferably, the vibration device leads to for motor or causes one of shape-changing material by piezo-electric crystal, changes of magnetic field material, field
Manufactured vibration device.
Preferably, the vibration device is piezoelectric actuator flexible along the longitudinal direction, when piezoelectric actuator works, is driven
The laser projection optics module is vibrated along the longitudinal direction.
Preferably, vibration frequency f >=30Hz of the vibration device, Oscillation Amplitude A≤100 μm.
Preferably, the vibration frequency f range of the vibration device are as follows: 200Hz >=f >=30Hz, Oscillation Amplitude A range are as follows:
15μm≤A≤100μm。
Preferably, the actuator includes the first actuation part and the second actuation part, and the first actuation part can drive the second cause
Dynamic portion is vibrated with first direction, and the second actuation part can be vibrated with second direction, and optical fiber cantilever is finally driven with first direction
It is swept on the compound direction of second direction.
Preferably, second actuation part is piezoelectric actuator.
Preferably, first actuation part is motor or causes one of shape-changing material by piezo-electric crystal, changes of magnetic field material, field
Manufactured vibration device.
Preferably, laser light source and bundling device are also packaged in shell, the light beam that the laser light source generates is through bundling device
Optical fiber is coupled into after closing beam.
Preferably, the laser light source includes at least tri- color laser light source of R, G, B.
Preferably, internal components are encapsulated using vacuum mode in shell.
Correspondingly, the laser projection device includes at least one set of above-mentioned the present invention also provides a kind of laser projection device
Any laser projection optics module.
Compared with prior art, the invention has the following beneficial effects:
The present invention provides a kind of completely new laser projection optics modules with dissipation spot function, using the laser projection
The laser-projector of optics module or laser television do not need to cooperate special screen that good display effect can be realized, can be effective
The hardware cost of laser-projector or laser television is reduced, conducive to the large-scale production of laser television.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings:
Fig. 1 is a kind of structural schematic diagram of one laser projection optics module of the embodiment of the present invention；
Fig. 2 is another structural schematic diagram of one laser projection optics module of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the external laser light source of Fig. 1 laser projection optics module；
Fig. 4 is a kind of structural schematic diagram of dual-laser projection optics mould group of the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of three laser projection optics module of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the external laser light source of Fig. 5 laser projection optics module；
Fig. 7 is a kind of structural schematic diagram of four laser projection optics module of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram one of actuator in the embodiment of the present invention；
Fig. 9 is the structural schematic diagram two of actuator in the embodiment of the present invention；
Figure 10 is the schematic diagram for splicing laser projection optics modules multiple in Fig. 1；
Figure 11 is the schematic diagram for splicing laser projection optics modules multiple in Fig. 4；
Figure 12 is the schematic diagram for splicing laser projection optics modules multiple in Fig. 5；
Figure 13 is laser projection device schematic diagram of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
" laser projection optics module " in the embodiment of the present invention is referred to as " fibre optic scanner ".
Embodiment one:
Referring to Fig. 1 to Fig. 3, the present embodiment laser projection optics module, including outer 101, the actuating being encapsulated in shell 101
Device 102, optical fiber and relaying microscope group 105；The both ends of actuator 102 are respectively fixing end and free end, in Fig. 1 example, braking
The fixing end of device 102 passes through the rear inside that fixed bracket 107 is fixed on shell 101, and optical fiber is fixed on the actuator and one end
Free end beyond actuator forms optical fiber cantilever 104, and the optical fiber other end 103 is beyond outer casing back as light input end；To swash
Light projection optics mould group beam projecting direction is front, and the opposite one end in light end is rear end out, i.e. in Fig. 1, before arrow direction is,
Relaying microscope group 105 is encapsulated in the front end of shell 101 and is located in the light optical path out of optical fiber；In the rear end of shell 101, it is provided with energy
Drive the vibration device 106 of entire laser projection optics module vibration.Relaying microscope group in the embodiment of the present invention is according to practical real
Demand is applied, can be designed as having the function of one of collimation, imaging, amplification, even light, focusing etc. or multiple functions.Show in Fig. 1
In example, the outside of 101 rear end of shell is arranged in vibration device 106, and in the specific implementation, vibration device 106 can also be according to Fig. 2
Shown mode is arranged, i.e., 106 a part of vibration device beyond on the outside of rear end, implemented by the mode of a part insertion outer casing back,
This applicant does not limit how vibration device is specifically arranged, as long as vibration device 106 is able to drive entire laser projection light
Learn the vibration of mould group.
In the present embodiment, vibration device 106 and brake 102 can be respectively independent device, may be designed in one
Forming structure.When vibration device 106 and brake 102 are integrally formed, in embodiments of the present invention, when shell 101 encapsulates,
So that the leakage of 106 part of vibration device is on the outside of 101 rear end of shell.
The optical fiber other end 103 beyond outer casing back as light input end, when in use, can be with other optics such as laser light source
The light-coming out optical fiber of device links together, and is the schematic diagram of the external laser light source of Fig. 1 laser projection optics module, laser such as Fig. 3
Light source 201 includes tri- color laser of R, G, B, after three color laser close beam by bundling device 301, inputs the laser projection optics in Fig. 1
Mould group, the output optical fibre of bundling device 301 connect 103 end of optical fiber, and optical fiber splicer operation, vibration can be used in the connection between optical fiber
Device 106 is preferably vibrated according to the front-rear direction of arrow instruction.
Speckle is substantially the redistributed power as caused by interference effect, and interference term is mechanical periodicity at any time
Amount, what human eye perceived is the integral in the interference term human eye time of integration, in the embodiment of the present invention, due to 106 band of vibration device
Entire laser projection optics module vibration is moved, due to the visual persistence effect of human eye, can not accurately be differentiated some moment
Speckle pattern, in the case where the vibration of laser projection optics module, human eye is received specific empty as caused by speckle pattern
Between Energy distribution, it will due to this vibration change and generate homogenized effect, be finally reached weaken even eliminate speckle mesh
's.
Embodiment two:
Referring to fig. 4, the laser projection optics module in the present embodiment and the laser projection optics module in Fig. 1~3 are distinguished
Be: Fig. 4 embodiment is all encapsulated into laser light source 201 and bundling device 301 in shell 101, and actuator 102 passes through fixed branch
Frame 107 is fixed in the middle part of shell, and the laser light source 201 includes at least tri- color laser light source of R, G, B, and laser light source 201 generates
Light beam through bundling device 301 close beam after be coupled into optical fiber, be emitted by optical fiber cantilever 104, vibration device 106 equally drives entire laser
The vibration of projection optics mould group.Preferably, the laser light source includes at least tri- color laser light source of R, G, B.
Embodiment three:
Referring to figs. 5 and 6, laser projection optics module shown in the present embodiment includes shell 101, is encapsulated in shell 101
Interior vibration device 106, actuator 102, optical fiber and relaying microscope group 105；It is with laser projection optics module beam projecting direction
Before, the opposite one end in light end is rear end out, and vibration device 106 is fixed on the inside of outer casing back, in Fig. 9 example, vibration device
106 are fixed on the rear inside of shell 101 by fixed bracket 107, and the both ends of actuator 102 are respectively fixing end and freedom
End, fixing end are fixed on vibration device 106, and optical fiber is fixed on the free end that on actuator 102 and one end exceeds actuator 102
Optical fiber cantilever 104 is formed, for the optical fiber other end beyond outer casing back as light input end, the relaying microscope group 105 is zoom lens
Group or long-focal-depth lens group are encapsulated in case nose and are located in the light optical path out of optical fiber.
Fig. 6 is the structural schematic diagram of Fig. 5 laser projection optics module external laser light source and bundling device.
The difference between this embodiment and the first embodiment lies in: in embodiment one, what vibration device 106 drove is that entire laser is thrown
The vibration of shadow optics module, and in the present embodiment, for vibration device 106 due to installation site difference, what is directly driven is actuator
102 vibrations, and then drive optical fiber cantilever 104 to vibrate indirectly.Since vibration main body is changed, in the present embodiment, relay lens
Group 105 is necessary for variable focus lens package or long-focal-depth lens group, and in example 1 and example 2, relaying microscope group can not have
Standby zoom function.When relaying microscope group 105 using zoom lens in the embodiment of the present invention, by Zoom control, so that no matter scanning
Optical fiber goes out how light end changes at a distance from relaying microscope group, can focus always on the screen.And it is deep and thorough using focal length to relay microscope group
Mirror, when scanning image planes generation minor change at a distance from relaying microscope group that optical fiber scans out, the image on screen is impacted smaller.
Example IV:
The laser projection optics module area in laser projection optics module and Fig. 5 and Fig. 6 referring to Fig. 7, in the present embodiment
Be not: Fig. 7 embodiment is all encapsulated into laser light source 201 and bundling device 301 in shell 101, and actuator 102 passes through fixation
Bracket 107 is fixed in the middle part of shell, and laser light source 201 includes at least tri- color laser light source of R, G, B.Other parts and Fig. 5 are implemented
Example is consistent, i.e., 106 same drive actuators 102 of vibration device and optical fiber cantilever fixed thereon 104 vibrate, and relays microscope group
105 are necessary for variable focus lens package or long-focal-depth lens group.
In embodiment three and example IV, vibration device 106 and brake 102 can be respectively independent device, can also
It is an integral molding structure with design.
The different structure of four embodiments of laser projection optics module is described above in conjunction with Fig. 1-7, it below will be to above-mentioned
The common part of four embodiments is described.
In above-mentioned all embodiments, vibration device 106 all can be vibrating motor or by piezo-electric crystal, changes of magnetic field material
Material, field cause vibration device made of the materials such as shape-changing material, electrostriction material, pass through motor driven, electrostriction, Magnetic driving
Etc. modes realize and vibrate in one or more directions, so that entire laser projection optics module be driven to vibrate.
In the preferred embodiment of above-mentioned all embodiments, the vibration device 106 preferably use is stretched along the longitudinal direction
Piezoelectric actuator drives the laser projection optics module to vibrate along the longitudinal direction, i.e. Piezoelectric Driving when piezoelectric actuator works
Device works in " d33 mode ", and " d33 mode " refers to thickness (t) the direction elongation when extra electric field E and polarization intensity P are in the same direction；E/P
When reversed, thickness (t) direction is shortened.The vibration frequency of vibration device 106 is preferably higher than according to the identifiable object of human eye
The vibration frequency that the upper limit of movement speed defines.It is well known that human eye visually identifies velocity interval equal to or less than 30Hz
Object.Therefore, the vibration frequency of vibration device 106 is preferably greater than or equal to 30Hz.It is set to reduce laser projection optics module
Meter volume and power consumption, the Oscillation Amplitude of vibration device 106 are preferably controlled in 100 μm.It is furthermore preferred that the embodiment of the present invention is vibrated
The vibration frequency f range of device are as follows: 200Hz >=f >=30Hz, Oscillation Amplitude A range are as follows: 15 μm≤A≤100 μm.
Brake 102 in above-mentioned all embodiments can be helical scanning actuator, or grid scanning actuating
Device, the present invention to actuator structure with no restrictions.
Since laser projection imaging field image source is typically all rectangular area, the scanning mode of screw type is lacked there are many
Point, such as: it is not easy to match with image source, pixel utilization rate is not high etc., therefore the embodiment of the present invention is preferably swept using grid type
Actuator is retouched, specifically: the actuator includes the first actuation part and the second actuation part, and the first actuation part can drive the second cause
Dynamic portion is vibrated with first direction, and the second actuation part can be vibrated with second direction, and optical fiber cantilever is finally driven with first direction
It is swept on the compound direction of second direction.It is preferred that first direction and second direction are vertical, one scans for X-direction, and one is Y
Direction scanning.In addition, the drive such as Piezoelectric Driving, motor driven or Magnetic driving can be respectively adopted in the first actuation part and the second actuation part
Flowing mode, herein with no restrictions.Such as first actuation part and the second actuation part can be respectively by motor or by piezo-electric crystal, magnetic field
Change material, field cause one of shape-changing material to be made.First actuation part and the second actuation part can be individual component, and the two passes through viscous
It connects, be clamped or connector is combined；First actuation part and the second actuation part may be integrated formed structure, not do herein
Limitation.In order to enable actuator structure is easy to understand, it is below citing with Fig. 8 and Fig. 9.In Fig. 8 and Fig. 9, label 1021 is indicated
First actuation part, label 1022 indicate the second actuation part, and label 104 is optical fiber cantilever, and label 1023 is interconnecting piece or isolation part,
In Fig. 8, the first actuation part and the second actuation part are seperated clamping design, Fig. 9 be the first actuation part and the second actuation part one at
Type design.
In the embodiment of the present invention, since optical fiber itself is very light, drive the actuator volume of optical fiber scanning that can be made very
It is small, therefore entire laser projection optics module volume and weight can accomplish very small, the entire laser throwing of vibration device driving
The vibration of shadow optics module, the power consumption needed can also be very low.
In above-mentioned all embodiments, the actuator, optical fiber and relaying microscope group are preferably encapsulated using vacuum mode in shell
Equal internal components.
In laser projection, it is often necessary to which multiple fibre optic scanners (laser projection optics module) are spliced.When work, often
The vibration device of a fibre optic scanner can either synchronously or asynchronously (i.e. same frequency or different frequency, with amplitude or various amplitude) carry out
It is vibrated on one or more directions, realizes the function of dissipation spot.Figure 10 is illustrated that laser projection optics modules multiple in Fig. 1
The schematic diagram of splicing, wherein 400 be the common fixed part of each fibre optic scanner, the vibration device 106 of each fibre optic scanner
It is fixed on fixed part 400.Figure 11 is illustrated that the schematic diagram of laser projection optics modules multiple in Fig. 4 splicing, and Figure 12
Illustrate that the schematic diagram for splicing laser projection optics modules multiple in Fig. 5.
Laser projection optics module in embodiment one and embodiment three, compared to the laser in embodiment two and example IV
Projection optics mould group, due to the unencapsulated laser light source of module internal, thermal diffusivity is more preferable.Simultaneously because laser projection optics module
It remaining and most simplifies structure, volume and weight is smaller, and it is lower to the driving force request of vibration device, it realizes and imitates convenient for volume production
Fruit guarantees.Certainly, when the relaying microscope group in embodiment three and example IV selects variable focus lens package, compared to one He of embodiment
Two, control difficulty increases.Therefore, embodiment one is preferred embodiment.
The laser projection optics module of the embodiment of the present invention is suitable for laser projection device can in laser projection device
Using the laser projection optics module of one or more groups of embodiment of the present invention.It as shown in figure 13, is laser projection device schematic diagram,
Laser projection optics module 100 of the present invention is used in laser-projector 500 in ray machine mould group, due to laser projection optics of the present invention
Mould group 100 has dissipation spot function, therefore projection screen 600 can be common anti-light curtain or even general projectors curtain.
The present invention provides a kind of completely new laser projection optics modules with dissipation spot function, using the laser projection
The laser-projector of optics module or laser television do not need to cooperate special screen that good display effect can be realized, can be effective
The hardware cost of laser-projector or laser television is reduced, conducive to the large-scale production of laser television and universal.
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (12)
1. a kind of laser projection optics module, which is characterized in that including shell, encapsulate actuator inside the shell, optical fiber and in
After microscope group；The both ends of actuator are respectively fixing end and free end, and optical fiber is fixed on the actuator and one end is beyond actuator
Free end forms optical fiber cantilever；Before being with laser projection optics module beam projecting direction, relaying microscope group is encapsulated in case nose
And it is located in the light optical path out of optical fiber；In outer casing back, it is provided with the vibration that can drive entire laser projection optics module vibration
Device.
2. laser projection optics module as described in claim 1, which is characterized in that the vibration device is for motor or by piezoelectricity
Crystal, changes of magnetic field material, field cause vibration device made of one of shape-changing material.
3. laser projection optics module as described in claim 1, which is characterized in that the vibration device is to stretch along the longitudinal direction
The piezoelectric actuator of contracting drives the laser projection optics module to vibrate along the longitudinal direction when piezoelectric actuator works.
4. laser projection optics module as claimed in claim 2 or claim 3, which is characterized in that the vibration frequency f of the vibration device
>=30Hz, Oscillation Amplitude A≤100 μm.
5. laser projection optics module as claimed in claim 4, which is characterized in that the vibration frequency f model of the vibration device
It encloses are as follows: 200Hz >=f >=30Hz, Oscillation Amplitude A range are as follows: 15 μm≤A≤100 μm.
6. such as the described in any item laser projection optics modules of claim 1,2,3,5, which is characterized in that the actuator includes
First actuation part and the second actuation part, the first actuation part can drive the second actuation part to vibrate with first direction, the second actuation part
It can be vibrated with second direction, optical fiber cantilever is finally driven to sweep on first direction and the compound direction of second direction.
7. laser projection optics module as claimed in claim 6, which is characterized in that second actuation part is Piezoelectric Driving
Device.
8. laser projection optics module as claimed in claim 7, which is characterized in that first actuation part is for motor or by pressing
Transistor, changes of magnetic field material, field cause vibration device made of one of shape-changing material.
9. such as the described in any item laser projection optics modules of claim 1,2,3,5,7,8, which is characterized in that also sealed in shell
Equipped with laser light source and bundling device, the light beam that the laser light source generates is coupled into optical fiber after bundling device closes beam.
10. laser projection optics module as claimed in claim 9, which is characterized in that the laser light source includes at least R, G, B
Three color laser light sources.
11. such as the described in any item laser projection optics modules of claim 1,2,3,5,7,8,10, which is characterized in that in shell
Internal components are encapsulated using vacuum mode.
12. a kind of laser projection device, which is characterized in that the laser projection device include it is at least one set of as claim 1 to
11 described in any item laser projection optics modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811377793.3A CN109212882A (en) | 2018-11-19 | 2018-11-19 | Laser projection optics module and laser projection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811377793.3A CN109212882A (en) | 2018-11-19 | 2018-11-19 | Laser projection optics module and laser projection device |
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| CN109212882A true CN109212882A (en) | 2019-01-15 |
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| CN201811377793.3A Pending CN109212882A (en) | 2018-11-19 | 2018-11-19 | Laser projection optics module and laser projection device |
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| CN (1) | CN109212882A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174761A (en) * | 2019-04-29 | 2019-08-27 | 成都理想境界科技有限公司 | A kind of fibre optic scanner and scan method |
| CN110426842A (en) * | 2019-06-28 | 2019-11-08 | 成都理想境界科技有限公司 | Grid type fibre optic scanner and its driving method and projection display apparatus |
| CN111751981A (en) * | 2019-03-26 | 2020-10-09 | 成都理想境界科技有限公司 | Projection display module and projection display equipment |
| CN112433360A (en) * | 2019-08-26 | 2021-03-02 | 成都理想境界科技有限公司 | Optical fiber scanner, detection positioning method and scanning display device |
| CN112558291A (en) * | 2019-09-26 | 2021-03-26 | 成都理想境界科技有限公司 | Optical fiber scanning device, scanning detection method and scanning display equipment |
| CN113741027A (en) * | 2020-05-27 | 2021-12-03 | 成都理想境界科技有限公司 | Grating type scanning actuator and optical fiber scanner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090316116A1 (en) * | 2008-05-19 | 2009-12-24 | University Of Washington Uw Techtransfer - Invention Licensing | Scanning laser projection display for small handheld devices |
| US20130063706A1 (en) * | 2010-04-28 | 2013-03-14 | Lemoptix Sa | Micro-projection device with antispeckle vibration mode |
| KR101346351B1 (en) * | 2013-01-25 | 2013-12-31 | 국민대학교산학협력단 | Optical scanning device based on an optical fiber cantilever |
| CN207689757U (en) * | 2017-12-28 | 2018-08-03 | 成都理想境界科技有限公司 | A kind of optical fiber scanning projection device |
| CN207689756U (en) * | 2017-12-28 | 2018-08-03 | 成都理想境界科技有限公司 | A kind of optical fiber scanning projection device and fibre-optic scanner |
| CN209281138U (en) * | 2018-11-19 | 2019-08-20 | 成都理想境界科技有限公司 | Laser projection optics module and laser projection device |
-
2018
- 2018-11-19 CN CN201811377793.3A patent/CN109212882A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090316116A1 (en) * | 2008-05-19 | 2009-12-24 | University Of Washington Uw Techtransfer - Invention Licensing | Scanning laser projection display for small handheld devices |
| US20130063706A1 (en) * | 2010-04-28 | 2013-03-14 | Lemoptix Sa | Micro-projection device with antispeckle vibration mode |
| KR101346351B1 (en) * | 2013-01-25 | 2013-12-31 | 국민대학교산학협력단 | Optical scanning device based on an optical fiber cantilever |
| CN207689757U (en) * | 2017-12-28 | 2018-08-03 | 成都理想境界科技有限公司 | A kind of optical fiber scanning projection device |
| CN207689756U (en) * | 2017-12-28 | 2018-08-03 | 成都理想境界科技有限公司 | A kind of optical fiber scanning projection device and fibre-optic scanner |
| CN209281138U (en) * | 2018-11-19 | 2019-08-20 | 成都理想境界科技有限公司 | Laser projection optics module and laser projection device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751981A (en) * | 2019-03-26 | 2020-10-09 | 成都理想境界科技有限公司 | Projection display module and projection display equipment |
| CN110174761A (en) * | 2019-04-29 | 2019-08-27 | 成都理想境界科技有限公司 | A kind of fibre optic scanner and scan method |
| CN110174761B (en) * | 2019-04-29 | 2021-08-31 | 成都理想境界科技有限公司 | Optical fiber scanner and scanning method |
| CN110426842A (en) * | 2019-06-28 | 2019-11-08 | 成都理想境界科技有限公司 | Grid type fibre optic scanner and its driving method and projection display apparatus |
| CN112433360A (en) * | 2019-08-26 | 2021-03-02 | 成都理想境界科技有限公司 | Optical fiber scanner, detection positioning method and scanning display device |
| CN112558291A (en) * | 2019-09-26 | 2021-03-26 | 成都理想境界科技有限公司 | Optical fiber scanning device, scanning detection method and scanning display equipment |
| CN112558291B (en) * | 2019-09-26 | 2024-03-05 | 成都理想境界科技有限公司 | Optical fiber scanning device, scanning detection method and scanning display equipment |
| CN113741027A (en) * | 2020-05-27 | 2021-12-03 | 成都理想境界科技有限公司 | Grating type scanning actuator and optical fiber scanner |
| CN113741027B (en) * | 2020-05-27 | 2024-03-08 | 成都理想境界科技有限公司 | Grating type scanning actuator and optical fiber scanner |
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