CN109557746A - Projection device - Google Patents
Projection device Download PDFInfo
- Publication number
- CN109557746A CN109557746A CN201811482965.3A CN201811482965A CN109557746A CN 109557746 A CN109557746 A CN 109557746A CN 201811482965 A CN201811482965 A CN 201811482965A CN 109557746 A CN109557746 A CN 109557746A
- Authority
- CN
- China
- Prior art keywords
- galvanometer
- ontology
- mounting plate
- projection device
- lighting apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
-
- G—PHYSICS
- 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
-
- 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
- G03B21/28—Reflectors in projection beam
Abstract
The present invention provides a kind of projection device.Projection device of the invention, including lighting apparatus component, lens assembly and mounting plate, mounting plate have the first side and second side, and the first side is fixedly connected with lighting apparatus component, and second side is fixedly connected with the lens assembly；And galvanometer is also equipped on mounting plate.It can be realized lighting apparatus component and lens assembly switching be fixed together, realize the structural requirement of miniaturized projection equipment, simultaneously, it is also used to that galvanometer is installed, it need not be also beneficial to the reduction of lighting apparatus component volume in lighting apparatus component internal reservation space, and then also be conducive to the miniaturization of projection device entirety.
Description
Technical field
The present invention relates to projection device field more particularly to a kind of projection devices.
Background technique
With the continuous development of science and technology, the advantages of projection arrangement is larger with its screen size, good visual effect, is got over
To be more widely applied.
Fig. 1 shows a kind of projection device structural schematic diagram of the prior art, as shown in Figure 1, projection device includes light source
Module 10, bare engine module 20 and projection lens 30.With the promotion to brightness requirement, light source module 10 generally includes laser
Device assembly, such as the blue laser perhaps laser of blue laser and red laser or three colors.Light source module 10
It is to be usually provided with air-cooled or liquid-cooling heat radiation device where the heat source of projection device.The light beam that light source module 10 issues passes through
Enter bare engine module 20 after shaping, bare engine module 20 generally includes the optical modulation device-of illumination path (not shown) and core
Light valve, in DLP framework, light valve is Digital Micromirror Device DMD, and the size of light valve is smaller, only the several inches of zero point, is usually needed
The incident angle and size that could be required after illumination path carries out the shaping of light beam with light valve component are irradiated to light valve table
Face.Light valve is modulated according to the light beam that the corresponding driving control signal of image to be displayed transmits light source module 10, is made
The light beam incidence that image information must be carried enters projection lens 30, in order to meet large scale and projection device distance projection medium
(such as projection screen) is closer to save space-efficient display requirement, and projection lens 30 can be ultra-short focus projection lens.It throws
Include multi-disc lens in shadow camera lens 30, receives the modulated image strip of light valve.
With the requirement to projected picture high quality, such as fine definition, high-resolution display requirement, usually in ray machine
It there is provision of galvanometer component (not shown) in module 20, galvanometer is by vibration so that two continuous frames image dislocation, utilizes mistake
The mode of position superposition, so that this two beams image strip sequentially enters projection lens 30, on the projection screen, human eye is temporary using vision
Stay the display of perception high-definition image.The fixed of galvanometer component needs in 20 internal reservation space of bare engine module, this is unfavorable for
The miniaturization of complete machine, and be also contemplated that galvanometer and vibrate to the resonance of 20 bring of bare engine module and noise problem.
It at work due to DMD, is the output that efficient beam and invalid light beam are controlled by way of positive and negative deflection, effectively
Light beam refers to that the small eyeglass of DMD enters camera lens with positive deflection angle the reflected beams, invalid light beam refer to the small eyeglass of DMD with
Negative bias gyration reflects the light onto other places, does not enter camera lens.Therefore, the optical port diameter where the light output mouth of usual bare engine module
Guarantee that efficient beam and invalid light beam must be separated from each other in optical path.And for projection lens, incident optical port diameter
It will affect the size of eyeglass, if light inlet diameter is big, it is larger to will lead to eyeglass, receives light and requires high, not only makes entire microscope group
Volume becomes larger, and is also unfavorable for the design of camera lens optical property.With the raising of small form factor requirements, projection lens by number of lenses and
The design of face type so that volume is smaller and smaller, but is limited to the job requirement of illumination path and DMD light valve inside lighting apparatus component,
It is difficult synchronous diminution, the two modular units will appear the case where can not just matching when being connected and fixed.
Summary of the invention
The present invention provides a kind of projection device, can be realized the topology requirement of miniaturization.
The present invention provides a kind of projection device, including lighting apparatus component, lens assembly mounting plate, mounting plate have the first side and
Second side, the first side are fixedly connected with lighting apparatus component, and second side is fixedly connected with lens assembly；And it is also installed on mounting plate
There is galvanometer.
The above one or more embodiment, provided projection device, in lighting apparatus component and/or lens assembly both facing to small
When typeization designs, the lighting apparatus component of different size optical port diameters and lens assembly switching are fixed together, realize miniaturized projection
The structural requirement of equipment, simultaneously, moreover it can be used to galvanometer is installed, it on the one hand may not necessarily be in light by installing galvanometer on a mounting board
It is galvanometer reserved space inside thermomechanical components, conducive to the reduction of lighting apparatus component volume, to be conducive to the miniaturization of projection device entirety.
Galvanometer installation simultaneously on a mounting board, compared with the prior art in reach cantilever fixed structure, mounting plate with
The biggish structure of other weight such as lighting apparatus component and lens assembly is fixedly connected with, at this point, mounting plate can by vibrational energy from
Multiple and different directions in galvanometer circumferential direction are dispersed to the other structures connecting with mounting plate；Meanwhile the company of galvanometer on a mounting board
The position of fixed point is connect, can be closer with the be connected and fixed structural distance of mounting plate, the torque of vibration is smaller, can be avoided mounting plate
From occurring phenomena such as swing and flexible deformation under the drive of galvanometer, the fixed structure for making mounting plate and being connected integrally has
There is the stronger rigidity of structure, thus reduces resonance and the generation of noise.
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 this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of projection device in the prior art；
Fig. 2 is the structural schematic diagram for the projection device that the embodiment of the present invention one provides；
Fig. 3 is the perspective view of the explosion of the projection device in Fig. 2；
Fig. 4 is the structural schematic diagram of galvanometer component in the projection device of the offer of the embodiment of the present invention one；
Fig. 5 is the perspective view of the explosion of galvanometer component in Fig. 4；
Fig. 6 is the structural schematic diagram towards galvanometer axial direction of the galvanometer component in Fig. 4；
Fig. 7 is the connection schematic diagram of mounting plate and galvanometer in the projection device of the offer of the embodiment of the present invention one.
Description of symbols:
1-lighting apparatus component；2-lens assemblies；3-mounting plates；11-Digital Micromirror Device；12-shells；10-light source modules；
20-bare engine modules；30-lens modules；31-ontologies；32 --- galvanometer；33-resilient snubbers；311-mounting portions；
313-light holes；314-annular convex platform；315-threaded connectors；321-through-holes；3111-threaded holes.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 2 is the structural schematic diagram for the projection device that the embodiment of the present invention one provides.Fig. 3 is the projection device in Fig. 2
Perspective view of the explosion.Fig. 4 is the structural schematic diagram of galvanometer component in the projection device of the offer of the embodiment of the present invention one.Fig. 5 is in Fig. 4
The perspective view of the explosion of galvanometer component.Fig. 6 is the structural schematic diagram towards galvanometer axial direction of the galvanometer component in Fig. 4.Fig. 7 is
The connection schematic diagram of mounting plate and galvanometer in the projection device that the embodiment of the present invention one provides.
As shown in Figures 2 to 7, projection device provided in this embodiment, including lighting apparatus component 1, lens assembly 2 and mounting plate
3, along optical axis direction, lighting apparatus component 1 and lens assembly 2 usually have a various sizes of mounting surface, lighting apparatus component 1 usually have compared with
Big optical port diameter light-emitting surface, projecting subassembly 2 usually has lesser optical port diameter incidence surface, and projecting subassembly 2 is perpendicular to optical axis institute
Face size be less than lighting apparatus component perpendicular to the face where optical axis size.Mounting plate 3 has the first side and second side,
In, the first side is fixedly connected with lighting apparatus component 2, and second side is fixedly connected with lens assembly 3, passes through one installation of setting in this way
Plate, when lighting apparatus component and/or lens assembly are both facing to Miniaturization Design, by the lighting apparatus component and camera lens of different size mounting surfaces
Component is preferably matched and is linked together, and realizes the assembling of projection device, realizes the structural requirement of miniaturization.
And galvanometer 32 is also equipped on mounting plate 3.
Specifically, mounting plate 3 includes ontology 31 and the galvanometer 32 being arranged on ontology 31, and galvanometer 32 includes galvanometer eyeglass
321, ontology 31 has the first side and second side, the first side and second side along galvanometer 32 axially opposing setting, and the first side with
Lighting apparatus component 1 is fixedly connected, and second side is fixedly connected with lens assembly 2；I.e. mounting plate by ontology 31 respectively with ray machine group
Part 1 and lens assembly 2 achieve a fixed connection.Ontology 31 has mounting portion 311, and mounting portion 311 has certain thickness, along installation
Plate 3 it is axially projecting, galvanometer 32 be arranged on mounting portion 311.
Specifically, projection device typically laser television, projector or other dresses for being able to carry out image projecting
It sets.It include lighting apparatus component 1 in projection device to realize the projection of picture, lighting apparatus component 1 is also commonly referred to as light engine,
Which includes Digital Micromirror Device 11(Digital Micromirror Device, DMD), the illumination path and shell of front end
The devices such as body 12.Wherein, illumination path can provide light as light source；And be covered in Digital Micromirror Device miniature light valve or
Person is light path switch, thus can be used for carrying out the opening and closing of optical path, so that the light that illumination path is issued is by the logical of selectivity
It crosses, to form image frame.And in order to be focused to the light being emitted from lighting apparatus component 1, the operation such as zoom, make its
The picture image normally shown is projected out on projection screen, projection device further includes having lens assembly 2.Include in lens assembly 2
There is multiple groups eyeglass, eyeglass is included one or more in each group eyeglass, passes through the refraction between different eyeglasses, energy in this way
The light being emitted from optical module is enough allowed to realize focusing on the projection screen, to show normal picture.
And further include having mounting plate 3 in order to improve the screen resolution of projection device, in projection device, it is wrapped in mounting plate 3
Galvanometer 32 is included.Light beam caused by lighting apparatus component 1 can be deflected certain angle, forming position offset by vibration by galvanometer 32
Pixel, the pixel after overshoot can be superimposed with preimage vegetarian refreshments caused by lighting apparatus component 1, to form the picture of superposition
Thus face promotes the resolution ratio of picture.In general, galvanometer 32 generally includes the knot such as eyeglass and the frame for fixing len
Structure.
When galvanometer 32 work when, high-frequency vibration can be generated, if galvanometer 32 cannot get it is good fix and support, galvanometer 32
Generated high-frequency vibration will be transferred to always the other structures of projection device, cause noise and covibration, influence to project
The normal work of equipment.It further include having in mounting plate 3 to reduce and avoid moulding brought by galvanometer 32 and covibration
Ontology 31, ontology 31, which is capable of forming more firm supporting point, makes galvanometer 32 to fix and support basis as galvanometer 32
Firm support is obtained, and reduces covibration.
To which while realizing that lighting apparatus component is connected with lens assembly using mounting plate, mounting plate is also simultaneously for pacifying
Galvanometer is filled, and galvanometer vibration can be reduced to the resonance of equipment entirety bring and noise problem, realizes a mounting plate portion
The structure of part multi-functionization, conducive to the simplification of projection device structure and the reduction of volume.
In the prior art, when galvanometer 32 being fixed using bracket, due to for fixing galvanometer 32 bracket and vibration
The axis direction of mirror 32 is vertical or near vertical, and other components in one end and projection device of bracket are fixed, and is fixed with
One end of galvanometer 32 is hanging free end, thus bracket integrally will form the structure for being similar to cantilever beam, i.e. bracket
There is the longer arm of force between other components one end fixed and galvanometer 32.It, can be perpendicular to galvanometer axis when galvanometer vibration
To direction on generate biggish deflection torque, bracket is supported since one end lacks at this time, thus can be in the band of the deflection torque
The dynamic lower corresponding wobble of generation, forms resonance.When mount vibration amplitude is larger, biggish noise and whole will result in
Body vibration.
The fixed structure of middle reach cantilever, mounting plate and lighting apparatus component and lens assembly etc. are other compared with the prior art
The biggish structure of weight is fixedly connected with, at this point, mounting plate can be by vibrational energy from multiple and different directions in galvanometer circumferential direction
Be dispersed to the other structures connecting with mounting plate, the load and energy transmission when effectively vibrating galvanometer to projection arrangement its
Its part；Meanwhile the position being connected and fixed a little of galvanometer on a mounting board, can with the be connected and fixed structural distance of mounting plate compared with
Closely, the torque of vibration is smaller, can be avoided mounting plate from occurring phenomena such as swing and flexible deformation under the drive of galvanometer, makes
Mounting plate and the fixed structure connected integrally have the stronger rigidity of structure, thus reduce resonance and the generation of noise.
And in order to allow ontology 31 it is firm support and fix galvanometer 32, avoid ontology 31 from being driven by galvanometer 32 and generate larger
Noise and covibration.Specifically, the ontology 31 in the present embodiment includes mounting portion 311, mounting portion 311 can be along mounting plate
3 it is axially projecting, and mounting plate 3 may be provided on mounting portion 311, and obtain supporting and fixing for mounting portion 311.
Wherein, mounting portion 311 can be protruded towards the direction of lighting apparatus component 1, can also be convex towards the direction of lens assembly 2
Out.For example, the bottom end of mounting portion 311 can be allowed to be fixed on the ontology of ontology 31 in the present embodiment, and the top of mounting portion 311
It is protruded along the axial of galvanometer to lighting apparatus component 1 at end.Since lighting apparatus component 1 generally has biggish size and mounting surface area,
So lighting apparatus component 1 can be blocked and be covered to mounting plate 3 when mounting portion 311 is protruded towards lighting apparatus component 1, to avoid
Extraneous dust and impurities influence the normal work of mounting plate 3.
In the present embodiment, when mounting plate 3 vibrate when, due to ontology 31 in the axial direction of mounting plate 3 with lighting apparatus component 1 and
Lens assembly 2, which is all connected with, to be fixed together, thus the vibration that mounting plate 3 generates can be respectively by multiple and different sides in itself circumferential direction
To passing in the other structures that ontology 31 and ontology 31 are connected, and the lens assembly 2 and lighting apparatus component 1 that ontology 31 connects
Biggish quality is all had, in the load and power dissipation to the structures such as lens assembly 2 and lighting apparatus component 1 when thus vibrating, and
It is effectively absorbed by the biggish structure of these quality, reduces the vibration of ontology 31 itself；Meanwhile ontology 31 and other fixed structures
(e.g. lighting apparatus component 1 and lens assembly 2) connects and simultaneously obtains fixing and supporting for these fixed structures, and ontology 31 and fixation
Being connected and fixed for structure is a little relatively close apart from galvanometer 32, thus galvanometer 32 is in vibration, the effect of vibration power of galvanometer 32 relative to
Position is fixedly connected with the shorter arm of force between ontology 31 and fixed structure, resulting oscillatory torque is also smaller, from
And ontology 31 is allowed to form effective support to galvanometer 32, reduce resonance and the generation of noise.
In order to which galvanometer 32 is fixed, and the vibration and noise of ontology 31 itself is reduced, ontology 31 can have a variety of
Different shapes and structure, is below described in detail the structure of ontology 31.
Wherein, have in order to allow ontology 31 to obtain the fixation of lighting apparatus component 1 and lens assembly 2, on ontology 31 for and
The structure that lighting apparatus component 1 or lens assembly 2 connect.As a kind of optional mode, ontology 31 further includes ontology 31, and ontology 31 has
Have for the light hole 313 for 32 light passing of galvanometer, and the first end and lighting apparatus component 1 axial along mounting plate 3 of ontology 31, ontology
The 31 axial second end along mounting plate 3 is fixedly connected with lens assembly 2.
Specifically, ontology 31 can be a variety of different shapes and structure.Since the ontology 31 of ontology 31 is connected to ray machine
Between component 1 and lens assembly 2, in order to shorten the optical path inside projection arrangement, ontology 31 should have on the axis direction of galvanometer
There is lesser size.At this point it is possible to allow ontology 31 to be plate structure, and the axis direction of the thickness direction of ontology 31 and galvanometer is protected
It holds consistent.The size shared on galvanometer axis direction of ontology 31 in this way is smaller, can allow lighting apparatus component 1 and lens assembly 2 it
Between have lesser spacing, shorten projection arrangement inside optical path length.And when the ontology of ontology 31 31 is plate structure, this
Two sides of body 31 in a thickness direction have the biggish mounting surface of area, it may be convenient to lighting apparatus component 1 and camera lens
Component 2 is fixedly connected.
Since mounting plate 3 is fixed between lighting apparatus component 1 and lens assembly 2, in order to avoid ontology 31 blocks projection dress
The light beam set, light hole 313 is provided on ontology 31, and the direction of light hole 313 is consistent with axially retaining for galvanometer.
Wherein, the shape of light hole 313 can match with the shape of galvanometer, for example, round, in addition, light hole 313
It is also possible to the different shapes such as rectangle, as long as ontology 31 will not be allowed to influence the normal work of galvanometer, is not limited herein
System.
In addition, the ontology 31 of ontology 31 or other different structures, such as entirety can form mounting blocks or peace
Boss etc. is filled, as long as ontology 31 can be fastened between lighting apparatus component 1 and lens assembly 2, and mounting portion 311 can be used as
Fix and support basis, it is without restriction to the specific structure of ontology 31 herein.
Specifically, ontology 31 can be supported galvanometer 32 by mounting portion 311.Wherein, mounting portion 311 equally can be with
With different structure and shape.
Wherein, as one of optional embodiment, mounting portion 311 can be multiple, and be arranged in light hole 313
Outer circumferential, for mounting portion 311 along the protrusion of mounting plate 3, the top of mounting portion 311 forms the fulcrum for fixing galvanometer 32.
When 311 quantity of mounting portion of ontology 31 is multiple in this way, multiple mounting portions 311 can be supported on the difference of galvanometer 32
Position, to improve the stability of strutting system to galvanometer 32.At this point, since galvanometer 32 is usually in flat structure, thus multiple installations
Portion 311 can abut or be fixed on simultaneously the ipsilateral different parts of galvanometer 32, be supported with being formed jointly to galvanometer 32.Wherein, pacify
The bottom end in dress portion 311 can be connected with one end towards lighting apparatus component 1 of ontology 31, and the top of mounting portion 311 is towards ray machine
Component 1 protrudes, and forms the fulcrum for being capable of fixing galvanometer 32.At this point, since mounting portion 311 is multiple, it is thus possible to galvanometer
32 form multi-point support, compare for the scheme of 32 single-point support of galvanometer, and multiple fulcrums can be avoided galvanometer 32 and generate swing
And attitudes vibration, there is preferable support effect to galvanometer 32.
Wherein, the quantity of mounting portion 311 can be set accordingly according to the specific structure and installation space of mounting plate 3
It sets.Optionally, the quantity of mounting portion 311 can be three and three or more, such as can be three, such three mounting portions
Three fulcrums that 311 top is constituted can form three vertex of triangle, galvanometer 32 can be fixed on three in this way
In plane determined by 311 top of mounting portion, it can effectively avoid galvanometer 32 in vibration, galvanometer 32, which generates, to be swung and rotate
Etc. attitude offsets phenomenon, the support of ontology 31 it is more firm.
And since the galvanometer in galvanometer 32 is needed through light beam, thus the setting position of mounting portion 311 is also required to avoid hiding
Block the optical path of galvanometer.Specifically, mounting portion 311 can be set in the outer circumferential of the light hole 313 of ontology 31, such as multiple
Mounting portion 311 can be co-located on the same circumference being arranged concentrically with light hole 313.At this point, multiple mounting portions 311 can be common
Optical path around galvanometer 32 is arranged, and while supporting galvanometer 32, the optical path to entire projection device is avoided to impact.Its
In, the specific location of mounting portion 311 can be accordingly arranged according to the structure of ontology 31 and the inner space of projection device, this
Locate without restriction.
When mounting portion 311 is both supported upon galvanometer 32 when along the same side of galvanometer radial direction, galvanometer 32 it is radial along galvanometer
The other side may be arranged due to a lack of support and vacantly, at this point, the side of galvanometer 32 being vacantly arranged is in vibration, it would still be possible to produce
The excessive phenomenon of raw Oscillation Amplitude, and resonance that thus cause ontology 31 and entire projection device.And because of galvanometer at this time
32 be only that part amplitude is larger, and other position amplitudes are smaller, it is possible that damaging to galvanometer 32.In order to galvanometer
32 carry out comprehensive support, reduce noise and resonance caused by galvanometer, optionally, multiple mounting portions 311 can be distributed in light hole
Different location in 313 circumferential direction.Specifically, different mounting portions 311 can be located at the light hole 313 of ontology 31 radially
It is not ipsilateral.
Still it is illustrated so that the quantity of mounting portion 311 is three as an example.Three mounting portions 311 can be looped around ontology 31
Light hole 313 outer circumferential, and three mounting portions 311 can uniformly arrange in a circumferential direction, be also possible to be other
Arrangement form.Such as radial opposite two in light hole 313 can be set in two mounting portions 311 in three mounting portions 311
Side, and another mounting portion 311 is located between the two mounting portions 311.In addition, the specific location of mounting portion 311 can be with root
It is accordingly adjusted according to the structure of ontology 31 and the inner space of projection device, as long as ontology 31 can be in the circumferential direction of galvanometer 32
Comprehensive support is carried out to galvanometer 32, details are not described herein again.
In this way in ontology 31, by allowing mounting portion 311 to be looped around 31 light hole of ontology, 313 outer circumferential, on the one hand, energy
Galvanometer 32 is enough avoided to cause Oscillation Amplitude excessive because unilateral part is hanging；On the other hand, mounting portion 311 can also be increased
Top is formed by the spacing between fulcrum, improves the stability of strutting system of ontology 31.
In mounting plate 3, since ontology 31 is supported galvanometer 32 by the mounting portion 311 extended along galvanometer axis,
Thus there may be apart from biggish interval between galvanometer 32 and the ontology 31 of ontology 31, in that interval, ontology 31 is only relied on
One or more spaced mounting portion 311 is supported galvanometer 32, may allow through the light beam of galvanometer 32 from peace
It lets out between dress portion 311, causes light leakage phenomena.It, can ontology 31 in ontology 31 and installation in order to avoid light leakage phenomena
Shading and connection structure are set between portion 311.
Specifically, in a kind of optional 31 structure of ontology, ontology 31 further includes annular convex platform 314, annular convex platform 314
In the inside of mounting portion 311, and the inner edge of annular convex platform 314 surrounds light hole 313.
At this point, annular convex platform 314 is connected on the ontology 31 of ontology 31, and annular convex platform 314 can be disposed around light hole
313 outside, and a tubular structure axially extending along galvanometer is formed, the side wall of such annular convex platform 314 can be to logical
Unthreaded hole 313 carries out shading, avoids leaking out from the gap between mounting portion 311 via the light beam of lens assembly 2 and mounting plate 3
It goes.
Wherein, annular convex platform 314 can be located at the inside of mounting portion 311, such annular convex platform 314 with pass through prism assemblies
Optical path between radial spacing it is smaller, can be realized preferable shaded effect.At this point, optional, annular convex platform 314 can be with
The mounting portion 311 in outside is mutually independent split type structure, or integrated formed structure.
Specifically, annular convex platform 314 can have a variety of different structures and form, for example, annular convex platform 314 can be
The cylindrical-shaped structure of both ends same size can also allow the one end of annular convex platform 314 being connected with ontology 31 to have biggish straight
Diameter, and one end of the separate ontology 31 of annular convex platform 314 has lesser diameter.Alternatively, annular convex platform 314 may be can
The structure for blocking 313 effect of light hole is played, details are not described herein again.
In a kind of wherein optional mode, a side end face towards prism assemblies for annular convex platform 314 and mounting plate 3 it
Between have spacing, at this point, the axial direction along prism assemblies is seen, the side end face of annular convex platform 314 can be lower than mounting portion 311
Height where end.There is certain spacing, thus in galvanometer axial direction in this way between annular convex platform 314 and the fulcrum of ontology 31
On form accommodation space, convenient for accommodate galvanometer 32 in protrude from galvanometer 32 installation point position.
And when connecting ontology 31 and galvanometer 32, galvanometer 32 can be fixed on the peace of ontology 31 by various ways
311 top of dress portion.Specifically, the connection type between 311 top of galvanometer 32 and mounting portion may include clamping, be bonded either
Connection etc. is realized using connector.
In a kind of wherein optional connection type, the top of each mounting portion 311, which passes through between galvanometer 32, to be connect
Part connection.Connector generally can be various standard fasteners or non-standard connector etc..Such as connector can be all kinds of
Different threaded fastener, riveting parts either holding firmware etc..Galvanometer 32 and mounting portion are realized by independent connector in this way
It only needs that the structure for matching connection with connector is arranged on connection between 311, galvanometer 32 and mounting portion 311, without
More complicated connection structure is wanted, so that the structure of mounting portion 311 and galvanometer 32 is more compact.
Wherein, as a kind of optional embodiment of connector, connector can be threaded connector 315, at this point, being
With 315 Matching installation of threaded connector, can be set and threaded connector 315 on the top of the mounting portion 311 of ontology 31
Matched threaded hole 3111, and be provided on galvanometer 32 and the matched through-hole 321 of threaded connector 315, threaded hole 3111 and logical
Hole 321 is oppositely arranged, and such threaded connector 315 can sequentially pass through threaded hole 3111 and through-hole 321, by mounting portion 311
It links together with galvanometer 32.
Specifically, threaded connector 315 can be the different types such as screw, bolt, in the present embodiment, it is threadedly coupled part
315 is are illustrated for ladder screw.The tail portion of ladder screw be it is ladder-like, cascaded surface can be determined with Different Plane
Position.After ladder screw is inserted into through-hole 321 set on galvanometer 32, the stepped tail portion of ladder screw can be from through-hole 321
Middle stretching, and screw and connect with the threaded hole 3111 for being located at 311 end position of mounting portion；The head of ladder screw is still located on vibration
The side away from ontology 31 of mirror 32 passes through the position-limiting action of ladder screw in this way, galvanometer 32 is allowed to be fixed on the end of mounting portion 311
On portion.
In order to allow the mounting portion 311 of ladder screw connection galvanometer 32 and ontology 31, the through-hole 321 opened up on galvanometer 32 with
And the direction of the threaded hole 3111 opened up on mounting portion 311 is consistent, and can be parallel with the axis direction of galvanometer 32, this
When, the installation direction of ladder screw also can be along the axis direction of galvanometer 32.
Because the mounting portion 311 of connector, galvanometer 32 and ontology 31 is rigid structure, in order to generate vibration in galvanometer 32
When, the vibration of vibration mould group is buffered, optionally, bolster can be set in the junction of galvanometer 32 and ontology 31.
Optionally, flexible bolster 33 can be set between the top of mounting portion 311 and galvanometer 32.At this point, mounting portion
Between 311 tops and the surface towards ontology 31 of galvanometer 32 and non-direct contact, but by resilient snubber 33 carry out every
From.Since resilient snubber 33 itself has elasticity, so resilient snubber 33 can pass through itself when galvanometer 32 generates vibration
Deformation absorb the vibrational energy of galvanometer 32 and reduce as caused by the vibration of galvanometer to play the effect of buffering and absorbing
The resonance of ontology 31 and projection device complete machine.
Specifically, resilient snubber 33 can be set in threaded connector 315 when connector is threaded connector 315
Side, e.g. resilient snubber 33 is annular element, and is set in the outer circumferential of threaded connector 315.At this point, elasticity is slow
Stamping 33 can be connected through a screw thread part 315 and be fixed.
In addition, it is optional, flexible bolster 33 also can be set between galvanometer 32 and connector.When connector is ladder
When the structures such as screw, since there may be activity spaces between 32 surface of head and galvanometer of ladder screw, thus can be in rank
Resilient snubber 33 is set between the head of ladder shell nail and the one side towards ladder screw head of galvanometer 32, to avoid ladder spiral shell
It is directly contacted between the head of nail and 32 surface of galvanometer.
Wherein, resilient snubber 33 can generally be made of flexible material, such as resilient snubber 33 can be
Rubber parts or silica gel part etc.；Alternatively, resilient snubber 33 or the elastic constructions such as spring or elastic slice.
It should be noted that being arranged between the top and galvanometer 32 of mounting portion 311 and between galvanometer 32 and connector
When resilient snubber 33, it can be respectively provided with resilient snubber 33 in above-mentioned two link position, it can also an only company wherein
Connect position setting resilient snubber 33, specific set-up mode can depending on the specific structure of galvanometer 32, in the present embodiment,
It is illustrated so that above-mentioned two link position is respectively provided with resilient snubber 33 as an example.
Wherein, between 311 top of mounting portion and galvanometer 32, or between galvanometer 32 and connector elastic buffer is set
The gap greater than 0.3mm or so can be reserved when part 33, between resilient snubber 33 and galvanometer 32, when vibrating to slow down galvanometer 32
Bring impact.
And in order to realize fixation and connection of the mounting plate 3 in entire projection device, mounting plate 3 and lighting apparatus component 1 or
Also a variety of different mounting means and installation site be can have between lens assembly 2.
In projection device, usually using lighting apparatus component 1 as the basis of main structure and connection, thus it is connected to ray machine group
Mounting plate 3 between part 1 and lens assembly 2 can also serve as the connection basis of lens assembly 2.For example, a kind of optional
In connection type, the ontology 31 in mounting plate 3 can be fixedly connected with the mounting surface of lens assembly 2.At this point, lens assembly 2 with
The ontology 31 of mounting plate 3 is used as installation foundation, and is fixedly connected on ontology 31 by mounting surface.At this point, being connected to ray machine group
Ontology 31 between part 1 and lens assembly 2, which can realize lens assembly 2, to be fixed and supported, and lighting apparatus component 1, lens assembly 2 are made
It is whole that unified structure is formed with mounting plate 3.
In addition, mounting plate 3 can also be connected with structures such as the other parts of lens assembly 2, such as barrel, it is not added herein
With limitation.
And when realizing the connection between lighting apparatus component 1 and mounting plate 3, since lighting apparatus component 1 is generally in digital micromirror device
Larger-size shell 12 is provided with outside part 11, thus optional, ontology 31 and can between the shell 12 of lighting apparatus component 1 shape
At being fixedly connected.Specifically, the shell 12 of lighting apparatus component 1 can have the open end towards mounting plate 3 and lens assembly 2,
Open end has the opening for light passing, and ontology 31 can link together with the open end.
Wherein, the shapes and sizes of the ontology 31 of ontology 31 can with the shape of the opening of the shell 12 of lighting apparatus component 1 and
Size matches, and the ontology 31 of such ontology 31, which can cover, to be located in opening, to allow lens assembly 2, mounting plate 3 and ray machine group
Closed cavity is collectively formed in the shell 12 of part 1, so that extraneous dust or impurity be avoided to enter inside projection device.
In addition, in another optional embodiment, ontology 31 can also with where the light output mouth of lighting apparatus component 1
Mounting surface is fixedly connected.Specifically, the light output mouth of lighting apparatus component 1 is opened up towards lens assembly 2, and the light of lighting apparatus component 1 is defeated
End face where exporting, that is, mounting surface can be connect with ontology 31.
In the present embodiment, projection device includes lighting apparatus component, lens assembly and mounting plate, and mounting plate has the first side and the
Two sides, the first side are fixedly connected with lighting apparatus component, and second side is fixedly connected with lens assembly；So as to lighting apparatus component and/
Or lens assembly both facing to Miniaturization Design when, by the lighting apparatus component of different size mounting surfaces and the lens assembly preferably company of matching
It is connected together, realizes the assembling of projection device, realize the structural requirement of miniaturization, meanwhile, mounting plate can be used for installation galvanometer,
It may not necessarily be on the one hand galvanometer reserved space inside lighting apparatus component by installing galvanometer on a mounting board, be conducive to lighting apparatus component
The reduction of volume；To realize multi-functionization of component, conducive to the reduction of projection device volume.
Galvanometer installation simultaneously on a mounting board, compared with the prior art in reach cantilever fixed structure, mounting plate with
The biggish structure of other weight such as lighting apparatus component and lens assembly is fixedly connected with, at this point, mounting plate can by vibrational energy from
Multiple and different directions in galvanometer circumferential direction are dispersed to the other structures connecting with mounting plate；Meanwhile the company of galvanometer on a mounting board
The position of fixed point is connect, can be closer with the be connected and fixed structural distance of mounting plate, the torque of vibration is smaller, can be avoided mounting plate
From occurring phenomena such as swing and flexible deformation under the drive of galvanometer, the fixed structure for making mounting plate and being connected integrally has
There is the stronger rigidity of structure, thus reduces resonance and the generation of noise.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of projection device, which is characterized in that including lighting apparatus component, lens assembly and mounting plate, the mounting plate has the
Side and second side, first side are fixedly connected with the lighting apparatus component, described second side and the fixed company of the lens assembly
It connects；And galvanometer is also equipped on the mounting plate.
2. projection device according to claim 1, which is characterized in that the mounting plate includes ontology, and the ontology has
For the light hole for the galvanometer light passing, the first side of the mounting plate is fixedly connected with the lighting apparatus component, and described second
Side is fixedly connected with the lens assembly and specifically includes:
The first side along the galvanometer axial direction of the ontology is fixedly connected with the lighting apparatus component, the ontology along the vibration
Second side of mirror axial direction is fixedly connected with the lens assembly.
3. projection device according to claim 1, which is characterized in that the mounting plate has the axial direction along the galvanometer convex
Mounting portion out, the galvanometer are arranged on the mounting portion.
4. projection device according to claim 3, which is characterized in that the mounting portion is multiple, and is arranged described logical
The outer circumferential of unthreaded hole, the top of the mounting portion form the fulcrum for fixing the galvanometer.
5. projection device according to claim 4, which is characterized in that multiple mounting portions are distributed in the light hole
Different location in circumferential direction.
6. according to the described in any item projection devices of claim 2-5, which is characterized in that the mounting plate further includes convex annular
Platform, the annular convex platform is located at the inside of the mounting portion, and the inner edge of the annular convex platform surrounds the light hole.
7. according to the described in any item projection devices of claim 2-5, which is characterized in that the top of each mounting portion with
The galvanometer is connected by connector.
8. projection device according to claim 6, which is characterized in that be arranged between the mounting portion top and the galvanometer
Flexible bolster；And/or resilient snubber is provided between the galvanometer and the connector.
9. projection device according to claim 1-5, which is characterized in that the mounting plate and the lens assembly
Mounting surface be fixedly connected.
10. projection device according to claim 1-5, which is characterized in that the mounting plate and the ray machine group
Mounting surface where the light output mouth of part is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482965.3A CN109557746A (en) | 2018-12-05 | 2018-12-05 | Projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482965.3A CN109557746A (en) | 2018-12-05 | 2018-12-05 | Projection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109557746A true CN109557746A (en) | 2019-04-02 |
Family
ID=65868934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811482965.3A Pending CN109557746A (en) | 2018-12-05 | 2018-12-05 | Projection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109557746A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531570A (en) * | 2019-09-04 | 2019-12-03 | 青岛海信激光显示股份有限公司 | Laser projection device and camera lens |
| CN113917769A (en) * | 2021-06-23 | 2022-01-11 | 深圳市安华光电技术有限公司 | Projection light machine and projection equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842845A (en) * | 2015-01-30 | 2016-08-10 | 精工爱普生株式会社 | Image display apparatus |
| CN205721053U (en) * | 2016-06-07 | 2016-11-23 | 海信集团有限公司 | Subassembly of imaging displacement and projection arrangement |
| CN106928601A (en) * | 2017-04-05 | 2017-07-07 | 青岛海信电器股份有限公司 | A kind of light aging resisting fluorubber composite and its preparation method and application |
| CN106990658A (en) * | 2017-04-26 | 2017-07-28 | 海信集团有限公司 | Lighting device |
| US9823466B2 (en) * | 2015-07-03 | 2017-11-21 | Panasonic Intellectual Property Management Co., Ltd. | Optical path changing device and projection image display apparatus |
| JP2018120176A (en) * | 2017-01-27 | 2018-08-02 | パナソニックＩｐマネジメント株式会社 | Optical member driving device, and projection type video display device |
| CN108646504A (en) * | 2018-03-22 | 2018-10-12 | 青岛海信电器股份有限公司 | A kind of galvanometer holder applied in laser projection device |
-
2018
- 2018-12-05 CN CN201811482965.3A patent/CN109557746A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842845A (en) * | 2015-01-30 | 2016-08-10 | 精工爱普生株式会社 | Image display apparatus |
| US9823466B2 (en) * | 2015-07-03 | 2017-11-21 | Panasonic Intellectual Property Management Co., Ltd. | Optical path changing device and projection image display apparatus |
| CN205721053U (en) * | 2016-06-07 | 2016-11-23 | 海信集团有限公司 | Subassembly of imaging displacement and projection arrangement |
| JP2018120176A (en) * | 2017-01-27 | 2018-08-02 | パナソニックＩｐマネジメント株式会社 | Optical member driving device, and projection type video display device |
| CN106928601A (en) * | 2017-04-05 | 2017-07-07 | 青岛海信电器股份有限公司 | A kind of light aging resisting fluorubber composite and its preparation method and application |
| CN106990658A (en) * | 2017-04-26 | 2017-07-28 | 海信集团有限公司 | Lighting device |
| CN108646504A (en) * | 2018-03-22 | 2018-10-12 | 青岛海信电器股份有限公司 | A kind of galvanometer holder applied in laser projection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531570A (en) * | 2019-09-04 | 2019-12-03 | 青岛海信激光显示股份有限公司 | Laser projection device and camera lens |
| CN113917769A (en) * | 2021-06-23 | 2022-01-11 | 深圳市安华光电技术有限公司 | Projection light machine and projection equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5166847B2 (en) | Projection display device | |
| CN109270682A (en) | A kind of laser projection device | |
| US10139717B2 (en) | Laser-diode, liquid-crystal projector | |
| JP6369038B2 (en) | Head-up display device | |
| TWI798391B (en) | Light path adjustment mechanism and fabrication method thereof | |
| WO2020244051A1 (en) | Laser projection apparatus | |
| CN109270781A (en) | Projection device | |
| CN109557746A (en) | Projection device | |
| CN108803208A (en) | projection device | |
| CN109212882A (en) | Laser projection optics module and laser projection device | |
| WO2020244378A1 (en) | Laser projection device | |
| US9625797B2 (en) | Projection optical device and image projection apparatus | |
| JP2007178944A (en) | Optical device and image display device | |
| CN112824967B (en) | Laser projection device | |
| CN211043914U (en) | Projection lens module and projector | |
| US20080024740A1 (en) | Illumination device, and projection system including the same | |
| WO2020244050A1 (en) | Laser projection device | |
| CN113126310A (en) | Dodging device and display equipment | |
| US20220091488A1 (en) | Laser projection apparatus | |
| CN213023919U (en) | Reflector adjusting mechanism for projection optical machine, projection optical machine and projector | |
| CN103869583A (en) | Projection device and integration rod positioning structure thereof | |
| JP2013057942A (en) | Light guide component | |
| KR20070100579A (en) | Pixel enhancement assembly and image projection apparatus having the same | |
| CN216561381U (en) | Projection equipment | |
| CN216748413U (en) | Projection module and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190402 |
|
| WD01 | Invention patent application deemed withdrawn after publication |