CN106990662B - A kind of regulating mechanism of projector's mean camber reflecting mirror and projector - Google Patents
A kind of regulating mechanism of projector's mean camber reflecting mirror and projector Download PDFInfo
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- CN106990662B CN106990662B CN201710341382.8A CN201710341382A CN106990662B CN 106990662 B CN106990662 B CN 106990662B CN 201710341382 A CN201710341382 A CN 201710341382A CN 106990662 B CN106990662 B CN 106990662B
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- curved reflector
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- reflecting mirror
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
Abstract
The invention discloses a kind of regulating mechanism of projector's mean camber reflecting mirror and projectors, are related to projector's technical field, when adjusting to solve existing regulating mechanism to the upper end of curved reflector, it is not easy to the problem of realizing the accurate adjusting of angle and invent.The present invention provides a kind of regulating mechanisms of projector's mean camber reflecting mirror, including mounting bracket and curved reflector, the upper end of curved reflector is connect with fixed beam by the first adjusting beam, first adjusting beam is fixed on the upper end of curved reflector, first through hole there are two being set on first adjusting beam, the length direction arrangement that two first through hole adjust beam along first, first adjusts screw there are two wearing respectively in two first through hole, two first adjusting screws are threadedly coupled with fixed beam, first is adjusted between beam and fixed beam equipped with elastic component, elastic component and first adjusts the contact point of beam between two first through hole.The present invention can be used for projector.
Description
Technical field
The present invention relates to the regulating mechanisms and throwing of projector's technical field more particularly to a kind of projector's mean camber reflecting mirror
Shadow machine.
Background technique
With being constantly progressive for science and technology, projection display technique is developed rapidly in recent years.Wherein, short focus is thrown
Shadow becomes recent research emphasis due to the advantages that required projector distance is small, and projected picture is big.
Currently, realizing that a kind of mode of short focus projection for the projection of reflective short focus, i.e., is projected image by projection lens
On the mirror, it is reflected on projection screen via reflecting mirror.Wherein, the position of reflecting mirror is just at the pass for influencing projection image quality
Key factor, if the position Rig up error of reflecting mirror directly influences whether therefore the effect of projection generally can in short focus projector
Reflective mirror regulating mechanism is set, come the position for adjusting reflecting mirror, so that drop shadow effect reaches best.
A kind of regulating mechanism of existing projector's mean camber reflecting mirror 02, as depicted in figs. 1 and 2, including mounting base 01,
The curved reflector 02 and projection lens 03 being installed in mounting base 01, in which: curved reflector 02 is located at projection lens 03
On light direction, light can be incident upon the reflecting surface of curved reflector 02 by projection lens 03, and mounting base 01 is equipped with arc branch
Support beam 011, lens assembly further include: connector 04, connector 04 include: the mounting portion being fixedly connected with curved support beam 011
041, it sets on mounting portion 041 there are two waist-shaped hole 0411, the length direction of each waist-shaped hole 0411 goes out light along projection lens 03
Direction extends, and is fixedly connected as shown in figure 3, connector 04 passes through a waist-shaped hole 0411 by screw 05 with curved support beam 011；
The first end of curved reflector 02 is equipped with card ear 021, and connector 04 further includes to be engaged with the card ear 021 that curved reflector 02 is equipped with
Holding section 042, mounting portion 041 is fixedly connected with holding section 042, formed the connector 04 of L-type.Card ear 021 is equipped with to throwing
The positioning protrusion 0211 of 03 protrusion of shadow camera lens, curved support beam 011 are equipped with the locating slot 0111 engaged with positioning protrusion 0211,
And spring 06 is arranged on positioning protrusion 0211.To curved reflector 02 first end adjust when, can by unscrewing screw 05,
So that connector 04 can be slidably matched by the waist-shaped hole 0411 which is provided with screw 05, to close to or far from projection lens
03 direction is mobile, and the first end of curved reflector 02 is close to connector 04, such connector under the action of 06 elastic force of spring
04 can drive the first end of curved reflector 02 mobile to the direction close to or far from projection lens 03, to realize song
Connector 04 can be fixed on curved support beam 011 by tightening screw 05 after the completion of adjusting by the adjusting of 02 angle of face reflecting mirror
On.
But the regulating mechanism of existing this projector's mean camber reflecting mirror 02, to the first end of curved reflector 02
It is the slippage by the kidney slot 0411 on adjusting connector 04 with respect to screw 05, to adjust curved reflector 02 when adjusting
Angle, in practice the angular adjustment of curved reflector 02 is very small, and the kidney slot 0411 of connector 04 is with respect to spiral shell
The slippage of nail 05 is difficult to accomplish to be precisely controlled, and then is not easy precisely to adjust the angle of curved reflector 02,
It needs to adjust repeatedly and can be only achieved requirement, be easy to increase regulating time in this way.In addition, in the first end tune to curved reflector 02
It before section, needs to unscrew screw 05, so that the kidney slot 0411 on connector 04 is slided with respect to screw 05, needed after the completion of adjusting
Tightening screw 05, is fixed on connector 04 on curved support beam 011, makes the step of adjusting comparatively laborious in this way, equally also increases
Regulating time is added.
Summary of the invention
The embodiment of the present invention provides regulating mechanism and the projector of a kind of projector's mean camber reflecting mirror, anti-to curved surface
When penetrating the upper end of mirror and being adjusted, it is not only able to precisely adjust the angle of curved reflector, but also tune can be reduced
Step is saved, and then regulating time can be shortened.
In order to achieve the above objectives, the embodiment provides a kind of regulating mechanism of projector's mean camber reflecting mirror,
Including mounting bracket and curved reflector, the mounting bracket includes pedestal and the fixed beam that is set to above the pedestal, institute
The lower end for stating curved reflector is connect with the pedestal, and the upper end of the curved reflector and the fixed beam are adjusted by first
Beam connection, the first adjusting beam are fixed on the upper end of the curved reflector, set that there are two first on the first adjusting beam
Through-hole, the length direction that two first through hole adjust beam along described first are arranged, are worn respectively in two first through hole
If there are two first to adjust screw, two the first adjusting screws are threadedly coupled with the fixed beam, and described first adjusts beam
Elastic component is equipped between the fixed beam, the elastic component applies to the first adjusting beam to the side far from the fixed beam
To mobile power, and the elastic component and described first adjusts the contact point of beam between two first through hole.
The regulating mechanism of projector's mean camber reflecting mirror in the embodiment of the present invention, due to the upper end and the of curved reflector
One adjusting beam is fixed, and the first adjusting beam is threadedly coupled by two first adjusting screws with fixed beam, in this way by anti-in curved surface
It penetrates setting first between mirror, fixed beam and adjusts beam, solve the seam between the upper end curved end of curved reflector and fixed beam
Gap adjusts inconvenience caused by screw to setting first, to facilitate the adjusting of the first adjusting screw；Due to first adjust beam with
Be equipped with the elastic component that can apply to the first adjusting beam to the mobile power in the direction far from fixed beam between fixed beam, elastic component with
First contact point for adjusting beam is located between two first through hole and (is located between two first adjusting screws), in this way when only revolving
Pine or screw one of them first adjust screw when, first adjusting beam is equivalent to lever, can using elastic component as rotation center, to
First unscrewed adjusts screw orientation inclination, and then curved reflector can be driven to rotate left and right, can be to screen regional
Blurred picture is adjusted, and eliminates the On Local Fuzzy of image；When unscrewing or screwing two first adjusting screws simultaneously, first is adjusted
The direction that Liang Huixiang is saved close to or far from projection lens is mobile, and then makes curved reflector that the rotation in up and down direction can occur,
Pitch regulation occurs, so as to realize the integral position adjustment of screen picture, makes image display effect more preferably.By unscrewing
Or two or in which one first adjusting screws are screwed, the flexible modulation of camber reflection mirror angle may be implemented, so as to disappear
Except the variation of structural member build-up tolerance bring camber reflection mirror angle, and then the display quality of projected picture can be improved；Due to
It is that the upper end of curved reflector is adjusted by way of screwing or unscrewing the first adjusting screw in the embodiment of the present invention,
That is: adjust screw for first and twist a circle, first adjust mobile the thread spacing in upper end of sill bolt moving surface reflecting mirror away from
From stubborn half-turn, first adjusts the distance of mobile half of the thread spacing in upper end of sill bolt moving surface reflecting mirror, and usual first is adjusted
Screw thread tooth spacing is smaller, in this way by rotating the first adjusting screw angle, so that it may accurate Control curve reflection
The amount of movement of the upper end of mirror, so as to be realized by being precisely controlled for the amount of movement of curved reflector upper end to its angle of reflection
The accurate adjusting of degree.In entire adjustment process, the first adjusting screw only need to be tightened or unscrew, adjustment process is succinct, side
Just.Therefore, compared with prior art, the regulating mechanism of projector's mean camber reflecting mirror in the embodiment of the present invention, anti-to curved surface
When penetrating the upper end of mirror and being adjusted, can the angle to curved reflector precisely adjusted, adjustment process is succinct, convenient, subtracts
Regulating step is lacked, and then regulating time can be greatly shortened, has improved and adjust efficiency.
On the other hand, the embodiment of the invention also provides a kind of projector, including shell, the shell is equipped with light
Mouthful, the regulating mechanism equipped with curved reflector described in above-described embodiment in the shell, the curved reflector includes anti-
Face and non-reflecting surface are penetrated, projection lens is provided in the mounting bracket of the regulating mechanism, the curved reflector is located at described
On the light direction of projection lens, the light that the projection lens issues is after the curved reflector by the light-emitting window
It projects.
Since projector provided in an embodiment of the present invention is provided with the adjusting of curved reflector described in above-described embodiment
Mechanism solves identical technical problem so can also generate identical technical effect.Since curved reflector is located at projection lens
Light direction on, light (picture of projection) that such projector lens issue by curved reflector reflecting surface it is anti-
It penetrates, projects, be then projected on large screen, to realize ultrashort focal length projection from light-emitting window.Pass through the tune of curved reflector
Save adjusting of the mechanism to curved surface transmitting mirror angle, so that it may so that projector is projected out the picture of high quality, to bring preferably
Visual experience.
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 for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the regulating mechanism of existing projector's mean camber reflecting mirror；
Fig. 2 is the structural schematic diagram of connector in existing projector；
Fig. 3 is the attachment structure schematic diagram of connector, curved reflector, curved support beam in existing projector；
Fig. 4 is the structural schematic diagram of the regulating mechanism of mean camber of embodiment of the present invention reflecting mirror；
Fig. 5 be the embodiment of the present invention in first adjust beam, curved reflector, mounting base assembling explosive view；
Fig. 6 is the cross section view of M-M in Fig. 4；
Fig. 7 is the partial enlarged view of structure at A in Fig. 6；
Fig. 8 is the cross section view of N-N in Fig. 4；
Fig. 9 is the partial enlarged view of structure at B in Fig. 8；
Figure 10 is the structural schematic diagram (half structure) of mean camber of embodiment of the present invention reflective mirror regulating mechanism；
Figure 11 be the embodiment of the present invention in second adjust beam, curved reflector, mounting base assembling explosive view；
Figure 12 is the second assembling explosive view for adjusting beam, curved reflector in the embodiment of the present invention；
Figure 13 is the structural schematic diagram (seeing outside in) of mean camber of embodiment of the present invention reflecting mirror；
Figure 14 is the second structural schematic diagram for adjusting beam in the embodiment of the present invention；
Figure 15 is the partial cross sectional views of P-P in Fig. 4；
Figure 16 is the second sectional view when fitting together for adjusting beam, curved reflector in the embodiment of the present invention；
Figure 17 is the bottom view of the regulating mechanism of mean camber of embodiment of the present invention reflecting mirror；
Figure 18 is that projector removes the structural schematic diagram after top cover in the embodiment of the present invention；
Figure 19 is the structural schematic diagram of projector in the embodiment of the present invention；
Figure 20 is the perspective view of projector in 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.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or
It is more than two.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It is right
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Referring to fig. 4 and Fig. 5, Fig. 4 and Fig. 5 show projector's mean camber reflecting mirror 2 of the invention regulating mechanism one
A specific embodiment, the regulating mechanism of projector's mean camber reflecting mirror in the present embodiment, including mounting bracket 1 and camber reflection
Mirror 2, mounting bracket 1 include pedestal 11 and the fixed beam 12 for being set to 11 top of pedestal, lower end and the pedestal 11 of curved reflector 2
The upper end of connection, curved reflector 2 is connect with fixed beam 12 by the first adjusting beam 3, and the first adjusting beam 3 is fixed on camber reflection
The upper end of mirror 2 is set there are two first through hole 31 on first adjusting beam 3, the length side that two first through hole 31 adjust beam 3 along first
To arrangement, wear that there are two first to adjust screw 32, two first adjustings screws 32 and fixation in two first through hole 31 respectively
Beam 12 is threadedly coupled, and first is adjusted equipped with elastic component 33 between beam 3 and fixed beam 12, and elastic component 33 adjusts beam 3 to first and applies
The power mobile to the direction far from fixed beam 12, and the contact point of elastic component 33 and the first adjusting beam 3 is located at two first through hole
Between 31.
Referring to fig. 4, Fig. 5 and Fig. 6, the regulating mechanism of projector's mean camber reflecting mirror in the embodiment of the present invention, due to song
The upper end of face reflecting mirror 2 adjusts beam 3 with first and fixes, and first, which adjusts beam 3, passes through two first adjusting screws 32 and fixed beam 12
It is threadedly coupled, adjusts beam 3 by the way that first is arranged between curved reflector 2, fixed beam 12 in this way, solve curved reflector 2
Upper end curved end and fixed beam 12 between gap adjust inconvenience caused by screw 32 to setting first, to facilitate the
One adjusts the adjusting of screw 32；It can apply to the first adjusting beam 3 to remote due to being equipped between the first adjusting beam 3 and fixed beam 12
The elastic component 33 of the power of direction movement from fixed beam 12, elastic component 33 and first adjust the contact point of beam 3 positioned at two first
Between through-hole 31 (be located at two first adjusting screws 32 between), in this way, as shown in figure 4, only ought unscrew or screw wherein one
A first when adjusting screw 32, and it can be rotation center with elastic component 33 that the first adjusting beam 3, which is equivalent to lever, and the of Xiang Xuansong
One adjusts the inclination of 32 direction of screw, and then curved reflector 2 can be driven to rotate left and right, can be to screen regional fuzzy graph
As being adjusted, show image apparent；When unscrewing or screwing two first adjusting screws 32 simultaneously, first adjusts beam 3
Can be mobile to the direction close to or far from projection lens (being combined with projection lens in Fig. 4 mesoporous L), and then make curved reflector 2
The rotation in up and down direction can occur, i.e. generation pitch regulation, so as to realize the integral position adjustment of screen picture, make figure
More preferably as display effect.By unscrewing or screwing two or in which one first adjusting screws 32, curved reflector 2 may be implemented
The flexible modulation of angle, so as to eliminate the variation (camber reflection of 2 angle of structural member build-up tolerance bring curved reflector
Mirror 2, fixed beam 12 etc. assemble Shi Douyou error, can have an impact to 2 position of curved reflector), and then projected picture can be improved
Display quality；Due to being by way of screwing or unscrewing the first adjusting screw 32 in the embodiment of the present invention to curved reflector
What 2 upper end was adjusted, it may be assumed that adjust screw 32 for first and twist a circle, first adjusts the upper end that beam 3 drives curved reflector 2
The distance of a mobile thread spacing twists half-turn, and first, which adjusts beam 3, drives mobile half of the screw thread in the upper end of curved reflector 2
The distance of tooth spacing, it is usual first adjusting 32 thread spacing of screw be it is smaller, in this way by rotation first adjusting screw 32
Angle, so that it may the amount of movement of the upper end of accurate Control curve reflecting mirror 2, so as to pass through 2 upper end of curved reflector
Amount of movement is precisely controlled to realize the accurate adjusting to its reflection angle.In entire adjustment process, only it need to tighten or unscrew
First adjusts screw 32, and adjustment process is succinct, convenient.Therefore, compared with prior art, the projector in the embodiment of the present invention
The regulating mechanism of mean camber reflecting mirror can be to the angle of curved reflector 2 when the upper end to curved reflector 2 is adjusted
Degree is precisely adjusted, and adjustment process is succinct, convenient, reduces regulating step, and then can greatly shorten regulating time, is improved
Adjust efficiency.
Wherein, the type for being set to the elastic component 33 between the first adjusting beam 3 and fixed beam 12 is not unique, can be bullet
Spring, or elastic slice etc..Compared to elastic slice, spring is easier to fix, and structure is simple, and reliability is higher.
Referring to Fig. 6 and Fig. 7, first, which adjusts beam 3, is equipped with protrusion 34 towards the surface of fixed beam 12, and protrusion 34 is located at two
Between first through hole 31, spring pocket is set in protrusion 34, and it is recessed that positioning is offered on the surface that fixed beam 12 adjusts beam 3 towards first
Slot 121, protrusion 34 protrude into positioning groove 121, and spring is in compressive state, and the both ends of spring adjust beam 3 with first respectively
With fixed beam 12 against.Since spring is set in protrusion 34, protrusion 34 is in spring during stretching or compression in this way
It is just moved in protrusion 34 always, so that it may prevent spring intermediate muster unstability, and then spring can be made at the angle of curved reflector 2
It does not shift in degree adjustment process；Since protrusion 34 is located between two first through hole 31, and to protrude into positioning recessed for protrusion 34
In slot 121, in this way when only unscrewing or screwing one of them first adjusting screw 32, the first adjusting beam 3 is equivalent to lever, positions
Groove 121 can limit protrusion 34, and the first adjusting beam 3 can be adjusted by fulcrum to first for unscrewing or screwing with protrusion 34
The direction inclination of screw 32 is saved, to successfully drive the upper end of curved reflector 2 that the rotation on left and right directions occurs.
Wherein, protrusion 34 is not unique with the way of contact of the slot bottom of positioning groove 121, for example protrusion 34 can be with positioning
The slot bottom face contact of groove 121.In addition, protrusion 34 can also with the slot bottom point contact of positioning groove 121, as shown in fig. 7, raised
34 protrude into the slot bottom point contact of one end in positioning groove 121 Yu positioning groove 121.Compared to face contact, protrusion 34 and positioning are recessed
The slot bottom point contact of slot 121 can adjust 3 run-off the straight of beam, the slot bottom movement of raised 34 surface relative positioning grooves 121 first
When, it can reduce frictional force between the two, keep the movement between protrusion 34 and positioning groove 121 more smooth, and then guarantee
First adjusting beam 3 drives the upper end of curved reflector 2 successfully to rotate left and right.
Further, it realizes that protrusion 34 and the structure of the slot bottom point contact of positioning groove 121 be not also unique, for example can lead to
Cross and realized with flowering structure: protrusion 34 is pyramidal structure, and the slot bottom of positioning groove 121 is planar structure, the cone of pyramidal structure with
The slot bottom of positioning groove 121 realizes point contact.Alternatively, it is also possible to being structure shown in Fig. 7: protrusion 34 protrudes into positioning groove 121
Interior one end end face is convex spherical, and the slot bottom of positioning groove 121 is concave spherical surface, and the radius of concave spherical surface is greater than the radius of convex spherical.
Since the radius of concave spherical surface is greater than the radius of convex spherical, such convex spherical when relative motion occurs for concave spherical surface, protect always by the two
Hold point contact.It is the scheme of pyramidal structure compared to raised 34, in scheme shown in Fig. 7, convex spherical is in contact with concave spherical surface, more can
Guarantee the two when relative motion occurs, the two contacts always, keeps the movement between protrusion 34 and positioning groove 121 more flat
Surely.
It is adjusted on beam 3 first, the setting position of two first through hole 31 is not also unique, for example protrusion 34 is located at first and adjusts
At the center for saving beam 3, both ends setting that two first through hole 31 adjust beam 3 close to first and symmetrical relative to protrusion 34.In addition,
Two first through hole 31 can also be arranged in a manner of as shown in Figure 5: protrusion 34 is located at the center that first adjusts beam 3, and two first
Center setting that through-hole 31 adjusts beam 3 close to first and symmetrical relative to protrusion 34.Compared to two first through hole 31 are close to first
The scheme for adjusting the both ends setting of beam 3, when two first through hole 31 adjust the intermediate setting of beam 3 close to first, two such the
Once adjusting, position of the screw 32 apart from protrusion 34 is closer, when unscrewing a circle to one of them first adjusting screw 32, the
The mobile distance in one adjusting 3 both ends of beam is greater than the distance of a thread spacing, the i.e. enlarge-effect of lever, then first adjusts
Saving beam 3 drives the amplitude of 2 left and right ends of curved reflector rotation bigger, has been greatly improved 2 top of curved reflector in this way
The speed that left and right ends rotation is adjusted, improves the efficiency of adjusting, is easy to implement quick adjusting.(in order to make it easy to understand, as an example
Son, it is assumed that the angle that curved reflector 2 or so needs to adjust is 2 degree, when two first through hole 31 are adjusted in beam 3 close to first
Between when being arranged, need to only twist a circle first and adjust screw 32 just can reach the angle to be adjusted.And two first through hole 31 are close
When first both ends for adjusting beam 3 are arranged, then needing to twist two circle the first adjusting screws 32 can be only achieved the angle to be adjusted, and twist one
It is quicker than twisting two circles the time required to circle).
In the regulating mechanism of projector's mean camber reflecting mirror in the embodiment of the present invention, the upper end of curved reflector 2 is solid
It is adjusted on beam 3 due to first, wherein fixed form between the two is not unique, for example can be accomplished by the following way
Fixed: the upper end of curved reflector 2 is equipped with an engaging lug 21, and one end of the first adjusting beam 3 is connect with engaging lug 21.In addition,
Can also be fixed between the two by mode shown in fig. 5: the upper end of curved reflector 2 is set there are two engaging lug 21, two companies
The line of lug 21 is parallel with fixed beam 12, and the both ends of the first adjusting beam 3 are connect with two engaging lugs 21 respectively.It is anti-compared to curved surface
It penetrates on mirror 2 and the scheme that an engaging lug 21 is connect with the first adjusting beam 3 is set, two engaging lugs 21 are set on curved reflector 2
Connect with the first adjusting beam 3, the left and right ends of curved reflector 2 can in this way fixed with the first adjusting 3 phase of beam, it can be to avoid
It is opposite another that the curved reflector 2 during angular adjustment of curved reflector 2 does not adjust the fixed one end of 3 phase of beam with first
End occurs to swing adverse effect, to make going on smoothly for 2 angular adjustment of curved reflector.
Since first adjusts beam 3 equipped with protrusion 34, protrusion 34 extend into the positioning groove 121 opened up in fixed beam 12
In, and protrusion 34 is to have certain length, when first adjusts beam 3 and 12 phase of fixed beam is fixed, due to raised 34 presence, the
Certain gap is had between one adjusting beam 3 and fixed beam 12, to realize the fixation of the two, needs longer screw that can incite somebody to action
The two is fixed, and can be made troubles in this way to the first adjusting beam 3 and the fixation of both fixed beams 12, and longer screw is easy to become
Shape, it is not easy to guarantee cooperation precision.In order to solve this problem, as shown in Fig. 5, Fig. 8 and Fig. 9, fixed beam 12 is adjusted towards first
It saving and is set on the surface of beam 3 there are two internal threaded column 122, two one-to-one correspondence of internal threaded column 122 protrude into two first through hole 31,
Two first adjusting screws 32 are cooperatively connected with two internal threaded columns 122 respectively.Since two one-to-one correspondence of internal threaded column 122 are stretched
Enter in two first through hole 31, two such first adjust screw 32 can between be cooperatively connected with two internal threaded columns 122,
So as to avoid using longer screw, cooperation precision is improved, to make the first adjusting beam 3 and both fixed beams 12
Fixation is more convenient.
Referring to Fig. 9, adjusted in screw 32 first, the diameter of nut be it is certain, to can be realized the first tune
The fixation of beam 3 and fixed beam 12 is saved, the diameter of first through hole 31 needs to be less than the diameter of the nut of the first adjusting screw 32, in this way
First nut for adjusting screw 32 can adjust surface of the beam 3 far from fixed beam 12 against realization first adjusts beam 3 with first
With the fixation of fixed beam 12.However, (outer diameter of internal threaded column 122 is less than the outer diameter of two internal threaded columns 122 of limitation in this way
In the diameter of first through hole 31), so that the wall thickness of internal threaded column 122 is become smaller, intensity is lower, and adjusts beam 3 to first in this way and fixes
The fixing intensity of beam 12 is unfavorable.Meanwhile first adjust screw 32 nut with first adjusting beam 3 contact area it is smaller, tighten
When, nut is larger to the pressure of the first adjusting beam 3, is easy to damage the surface of the first adjusting beam 3, to solve the above-mentioned problems, such as
Shown in Fig. 9, the first diameter for adjusting the nut of screw 32 is less than the diameter of first through hole 31, and the nut of the first adjusting screw 32
Gasket 35 is equipped between internal threaded column 122, (gasket 35 and first adjusts beam 3 far from fixed beam 12 to the sectional area of gasket 35
The area that surface is in contact) be greater than the sectional area (area of first through hole 31) of first through hole 31, i.e. gasket 35 can be with first
The edge of through-hole 31 leans.The nut for adjusting screw 32 due to first adjusts beam 3 far from fixed beam by gasket 35 and first
12 surface against, and first adjust screw 32 nut diameter be less than first through hole 31 diameter, the section of gasket 35
Product is greater than the sectional area of first through hole 31, and the outer diameter of such internal threaded column 122 would not be adjusted outside the nut of screw 32 by first
The limitation of diameter, the wall thickness of internal threaded column 122 can do larger, the intensity of internal threaded column 122 can be improved, and then can mention
High first adjusts the fixing intensity of beam 3 and fixed beam 12.Meanwhile gasket 35 can do it is larger, to reduce the first adjusting
The pressure that the nut of screw 32 adjusts beam 3 to first, is less likely to be damaged the first adjusting beam 3.
Wherein, as shown in figs. 5 and 9, it can also be equipped with deep gouge 36 on the first adjusting surface of the beam 3 far from fixed beam 12,
Gasket 35 is set in deep gouge 36 so that it is convenient to the positioning of gasket 35.Gasket 35 can be a big gasket, open two above
A hole, two holes are opposite one by one with two first through hole 31 respectively, and gasket 35 is also possible to two lesser gaskets, Mei Ge little
A hole is respectively provided on gasket, the hole being provided on two minipads 35 is opposite one by one with two first through hole 31 respectively.Gasket 35
It can be sheet metal component, or other material, it is not limited here.
The regulating mechanism of projector's mean camber reflecting mirror provided in an embodiment of the present invention, can also be by curved reflector
2 lower end is adjusted, and the angular adjustment of curved reflector 2 is realized, so as to realize the tune of screen imaging region upper and lower position
Section.
Referring to fig. 4, the lower end of Figure 10 and Figure 11, curved reflector 2 are connect with pedestal 11 by the second adjusting beam 4, and second
It adjusts beam 4 and is fixed on the lower end of curved reflector 2, set that there are two the second through-hole 41, two the second through-holes 41 on the second adjusting beam 4
The length direction arrangement for adjusting beam 4 along second wears in two the second through-holes 41 respectively and adjusts screw 42 there are two second, and two
Second adjusting screw 42 is threadedly coupled with fixed beam 12, is arranged with adjustment spring respectively on the screw rod of two second adjusting screws 42
43, one end of adjustment spring 43 and pedestal 11 against, the other end and the second adjusting beam 4 against.Due to one end of adjustment spring 43
With pedestal 11 against the other end and second adjusts beam 4 against in this way when unscrewing the second adjusting screw 42, second adjusts beam 4 just
It can be mobile to the direction far from projection lens under the effect of the elastic force of adjustment spring 43.Wherein, as shown in figure 15, on pedestal 11
Also the second internal threaded column 111 can be set, the second adjusting screw 42 passes through the second adjustment hole and matches with 111 screw thread of the second internal threaded column
It closes.Adjustment spring 43 can be sheathed on the second internal threaded column 111.
Referring to fig. 4 and Figure 12, similar with the adjusting of the upper end of curved reflector 2, the lower end of curved reflector 2 is carried out
When adjusting, by screwing or unscrewing the second adjusting screw 42, the second adjusting screw 42 is anti-with moving surface by the second adjusting beam 4
It is mobile to the direction close to or far from projection lens to penetrate the lower end of mirror 2, at this moment curved reflector 2 can rotate or inclination angle
The variation of degree.Following two regulative mode can be specifically divided into: when only unscrewing or screwing one of them second adjusting screw 42,
The direction that second adjusting beam 4 can adjust screw 42 to second for unscrewing or screwing tilts, and then drives under curved reflector 2
Rotation on left and right directions occurs for end, and image on screen On Local Fuzzy or the tune not focused in correct position at this moment also may be implemented
Section；When unscrewing or screwing two second adjusting screws 42 simultaneously, second adjusts beam 4 can be to the side close to or far from projection lens
To movement, and then make curved reflector 2 that the rotation in up and down direction can occur, i.e. generation pitch regulation, at this moment may be implemented to shield
The adjusting of the front-rear position of imaging region on curtain, such 2 lower end of curved reflector adjust to adjust with upper end and combine, and realize song
The purpose of the multi-faceted flexible modulation of the reflection angle of face reflecting mirror 2.It, can be to two second after curved reflector 2 is adjusted in place
It adjusts screw 42 and carries out dispensing processing, reinforce fixed reliability, thus prevent two second adjusting screws 42 from loosening, thus
It ensure that the position of curved reflector 2 is constant.
Wherein, second adjust beam 4 and the connection type of the lower end of curved reflector 2 it is not unique, such as can by with
Under type connection: the both ends of the second adjusting beam 4 are connect with the lower end of curved reflector 2, and two the second through-holes 41 are located at the
Two adjust the middle position of beam 4.In addition, connection side below can also be used in the lower end of the second adjusting beam 4 and curved reflector 2
Formula: as shown in Fig. 4 and Figure 12, the middle part of the second adjusting beam 4 is connect with the lower end of curved reflector 2, and two the second through-holes 41 divide
Not Wei Yu second adjust beam 4 both ends.The scheme that the both ends of beam 4 are connect with the lower end of curved reflector 2 is adjusted compared to second, the
In the scheme that the middle part of two adjusting beams 4 is connect with the lower end of curved reflector 2, since two the second through-holes 41 are located at second
The both ends of beam 4 are adjusted, the line of the point of adjustment of such curved reflector 2 constitutes triangle (the two of 2 upper end of curved reflector
The intermediate setting that a first through hole 31 adjusts beam 3 first, from be more closely equivalent to one for entire curved reflector 2
Point of adjustment), it can more guarantee that (triangle has for the stability of curved reflector 2 during curved reflector 2 is adjusted in this way
Stability principle).
Further, the fixed form of the lower end at the middle part and curved reflector 2 of the second adjusting beam 4 is not also unique, such as
Can fix in the following manner: the lower end of curved reflector 2 is equipped with fixed ear, and fixed ear adjusts beam 4 by screw and second
Middle part be connected.In addition, the middle part of the second adjusting beam 4 and the lower end of curved reflector 2 can also pass through Figure 12 and Figure 16 institute
The mode of showing is fixed: the middle part of the second adjusting beam 4 is connected with fixed plate 5, is equipped with and extends downwardly in the middle part of the lower end of curved reflector 2
Lug 22, the second adjusting beam 4 and fixed plate 5 are located at the two sides of lug 22, and lug 22 is fixedly clamped.Compared to camber reflection
The lower end setting fixed ear of mirror 2 is by the scheme of screw and the fixation of 5 phase of fixed plate, scheme shown in Figure 12 and Figure 16, due to the
Two adjusting beams 4 and fixed plate 5 are located at the two sides of lug 22, and lug 22 is emitted in this way in curved surface by being fixedly clamped
When mirror upper end is mobile to the direction close to or far from projection lens, just it is less likely to occur phase between lug 22 and the second adjusting beam 4
To movement, to ensure that the fixed stability in the middle part that the lower end of curved reflector 2 adjusts beam 4 with second.
Wherein, as shown in figure 12, fixed plate 5 includes interconnecting piece 51 and fixed part 52, and interconnecting piece 51 is located at fixed part 52
Two sides adjust beam 4 with second by screw on interconnecting piece 51 and are detachably connected, and fixed part 52 is concave, the spill of fixed part 52
Inner surface is matched with lug 22, i.e., fixed part 52 can encase lug 22.
It is convenient to position between the two in order to which the middle part for adjusting beam 4 second and lug 22 are when fixed, such as Figure 13 and Figure 14
Shown, the second middle part for adjusting beam 4 is equipped with locating slot 44, and the shape of locating slot 44 and the shape of lug 22 match, locating slot
44 slot bottom is equipped with positioning column 45, and location hole 221 is offered on lug 22, and the cooperation of positioning column 45 is protruded into location hole 221.Pass through
Locating slot 44 and the cooperation of lug 22, positioning column 45 and location hole 221 cooperate, and the second adjusting beam 4 and curved surface transmitting mirror is made to exist in this way
When assembly, it is easier to position, prevent the two from filling askew, improve assembly precision between the two.Wherein, positioning column 45 is arranged in locating slot
44 slot bottom is positioned such that the other end of column 45 can not stretch out locating slot 44, thus can process to avoid positioning column 45
In the process occur fracture (if positioning column 45 is set up directly on the surface of lug 22, then positioning column 45 be higher than 22 surface of lug, by
Smaller in the diameter of positioning column 45, positioning column 45 is easy to be broken in process).
Referring to Fig. 6 and Figure 14, the second middle part for adjusting beam 4 is equipped with the second positioning column 46, opens up on the bottom plate 112 of pedestal 11
There is positioning long hole 1121, the thickness direction that positioning long hole 1121 adjusts beam 4 along second extends, and the axis of the second positioning column 46 is parallel
In the depth direction (i.e. outer surface of the second positioning column 46 perpendicular to bottom plate 112) of positioning long hole 1121, the second positioning column 46
It is inserted into positioning long hole 1121 and is slidably matched with positioning long hole 1121.Two second adjusting screws are unscrewed or screwed when simultaneously
When 42, second adjusts beam 4 can be mobile to the direction close to or far from projection lens, simultaneously.Second positioning column 46 is in positioning long hole
Sliding in 1121.By the cooperation of the second positioning column 46 and positioning long hole 1121, the second adjusting beam 4 can be limited, be prevented
Only second adjust the movement and swing that left and right directions occurs for beam 4.Meanwhile being matched by second positioning column 46 and positioning long hole 1121
It closes, the second adjusting beam 4 can be made to constitute a lever, the second positioning column 46 is equivalent to fulcrum, in the lower end tune of curved reflector 2
When section, when only unscrewing or screwing one of them second adjusting screw 42, the second adjusting beam 4 can be fulcrum with the second positioning column 46
The direction for adjusting screw 42 to second for unscrewing or screwing tilts, and then drives the lower end of curved reflector 2 that right and left occurs
Upward rotation.
Wherein, as shown in Fig. 6, Figure 14 and Figure 17, the second positioning column 46 can also be by with lower section with positioning long hole 1121
Formula setting, the second middle part for adjusting beam 4 are equipped with boss 47, and the second positioning column 46 is set on boss 47, the bottom plate 112 of pedestal 11
On offer opening 1122, boss 47 is extend into opening 1122, in outer surface and the 1122 opposite positions that are open of bottom plate 112
It installs and is equipped with baffle 1123, positioning long hole 1121 is opened on baffle 1123.Since boss 47 is extend into opening 1122, this
Sample can reduce occupied space of the second adjusting beam 4 in pedestal 11, while also play certain limit to the second adjusting beam 4
Effect, can place the second adjusting beam 4 or so and significantly swing.The setting of baffle 1123 can also prevent outer at opening 1122
The dust on boundary enters in pedestal 11 from opening 1122, can make a big impact in the service life to projection imaging and projector.Wherein,
Baffle 1123 and the outer surface of bottom plate 112 are detachably connected, such as screw connection.Baffle 1123 can be sheet metal component, can also
Think other material, it is not limited here.
On the other hand, as shown in Figure 18 and Figure 19, the embodiment of the invention also provides a kind of projector, including shell 200,
Shell 200 is equipped with light-emitting window 210, the tune equipped with projector's mean camber reflecting mirror in any of the above-described embodiment in shell 200
Mechanism 100 is saved, curved reflector 2 includes reflecting surface 23 and non-reflecting surface 24 (as shown in Figure 5), the mounting bracket 1 of regulating mechanism
On be provided with projection lens 300, curved reflector 2 is located on the light direction of projection lens 300, projection lens 300 issue
Light is projected after the reflection of curved reflector 2 by light-emitting window 210.
Since projector provided in an embodiment of the present invention is provided with any of the above-described projector's mean camber as described in the examples
The regulating mechanism 100 of reflecting mirror solves identical technical problem so can also generate identical technical effect.As shown in figure 20,
It is located on the light direction of projection lens 300 due to curved reflector 2, the light (picture of projection that such projector lens issue
Face) it is then projected on large screen 400 by the reflection of the reflecting surface 23 of curved reflector 2 from the injection of light-emitting window 210, thus
Realize ultrashort focal length projection.Emit curved surface the adjusting of mirror angle by the regulating mechanism of curved reflector 2, so that it may so as to throw
Shadow machine is projected out the picture of high quality, to bring better visual experience.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (13)
1. a kind of regulating mechanism of projector's mean camber reflecting mirror, including mounting bracket and curved reflector, which is characterized in that institute
State the fixed beam that mounting bracket includes pedestal He is set to above the pedestal, the lower end of the curved reflector and the pedestal
Connection, the upper end of the curved reflector are connect with the fixed beam by the first adjusting beam, and the first adjusting beam is fixed on
The upper end of the curved reflector is set there are two first through hole on the first adjusting beam, and two first through hole are described in
First adjusts the length direction arrangement of beam, is equipped with one first adjusting screw, two institutes respectively in each first through hole
It states the first adjusting screw to be threadedly coupled with the fixed beam, is equipped with elastic component between the first adjusting beam and the fixed beam,
The elastic component applies the power mobile to the direction far from the fixed beam, and the elastic component and institute to the first adjusting beam
The contact point for stating the first adjusting beam is located between two first through hole.
2. the regulating mechanism of projector's mean camber reflecting mirror according to claim 1, which is characterized in that the elastic component is
Spring, described first, which adjusts beam, is equipped with protrusion towards the surface of the fixed beam, and the protrusion is logical positioned at two described first
Between hole, the spring pocket is set in the protrusion, and it is fixed to offer on the surface that the fixed beam adjusts beam towards described first
Position groove, the protrusion protrudes into the positioning groove, and the spring is in compressive state, and the both ends of the spring respectively with
Described first adjust beam and the fixed beam against.
3. the regulating mechanism of projector's mean camber reflecting mirror according to claim 2, which is characterized in that the protrusion protrudes into
The slot bottom point contact of one end and the positioning groove in the positioning groove.
4. the regulating mechanism of projector's mean camber reflecting mirror according to claim 3, which is characterized in that the protrusion protrudes into
One end end face in the positioning groove is convex spherical, and the slot bottom of the positioning groove is concave spherical surface, the radius of the concave spherical surface
Greater than the radius of the convex spherical.
5. the regulating mechanism of projector's mean camber reflecting mirror according to claim 1, which is characterized in that the camber reflection
The upper end of mirror is set there are two engaging lug, and the line of two engaging lugs is parallel with the fixed beam, the first adjusting beam
Both ends are connect with two engaging lugs respectively.
6. the regulating mechanism of projector's mean camber reflecting mirror according to claim 2, which is characterized in that the protrusion is located at
Described first is adjusted at the center of beam, and the center that two first through hole adjust beam close to described first is arranged and relative to institute
It states raised symmetrical.
7. the regulating mechanism of projector's mean camber reflecting mirror according to claim 1, which is characterized in that the fixed beam court
It is set on the surface of the first adjusting beam there are two internal threaded column, two internal threaded column one-to-one correspondence protrude into described in two
In first through hole, two described first adjust screw and are cooperatively connected respectively with two internal threaded columns.
8. the regulating mechanism of projector's mean camber reflecting mirror according to claim 7, which is characterized in that described first is adjusted
The diameter of the nut of screw is less than the diameter of the first through hole, and the nut and the internal threaded column of the first adjusting screw
Between be equipped with gasket, the sectional area of the gasket is greater than the sectional area of the first through hole.
9. the regulating mechanism of projector's mean camber reflecting mirror described according to claim 1~any one of 8, which is characterized in that
The lower end of the curved reflector is connect with the pedestal by the second adjusting beam, and the second adjusting beam is fixed on the curved surface
The lower end of reflecting mirror is set there are two the second through-hole on the second adjusting beam, and two second through-holes are adjusted along described second
The length direction of beam arranges, and is equipped with one second adjusting screw in each second through-hole respectively, and two described second are adjusted
Section screw is threadedly coupled with the fixed beam, is arranged with adjustment spring respectively on the screw rod of two the second adjusting screws, institute
State adjustment spring one end and the base abutment, the other end and it is described second adjust beam against.
10. the regulating mechanism of projector's mean camber reflecting mirror according to claim 9, which is characterized in that described second adjusts
The middle part of section beam is connect with the lower end of the curved reflector, and two second through-holes are located at described second and adjust beam
Both ends.
11. the regulating mechanism of projector's mean camber reflecting mirror according to claim 10, which is characterized in that described second adjusts
It is connected with fixed plate in the middle part of section beam, the lug extended downwardly is equipped in the middle part of the lower end of the curved reflector, described second adjusts
Section beam and the fixed plate are located at the two sides of the lug, and the lug is fixedly clamped.
12. the regulating mechanism of projector's mean camber reflecting mirror according to claim 11, which is characterized in that described second adjusts
The middle part for saving beam is equipped with locating slot, and the shape of the locating slot and the shape of the lug match, the slot bottom of the locating slot
Equipped with positioning column, location hole is offered on the lug, the positioning hole is protruded into the positioning column cooperation.
13. a kind of projector, including shell, the shell is equipped with light-emitting window, which is characterized in that right is equipped in the shell
It is required that the regulating mechanism of curved reflector described in any one of 1~12, the curved reflector includes reflecting surface and non-reflective
Face, projection lens is provided in the mounting bracket of the regulating mechanism, and the curved reflector is located at going out for the projection lens
On light direction, the light that the projection lens issues is projected after the curved reflector by the light-emitting window.
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| CN201710341382.8A CN106990662B (en) | 2017-05-15 | 2017-05-15 | A kind of regulating mechanism of projector's mean camber reflecting mirror and projector |
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| CN201710341382.8A CN106990662B (en) | 2017-05-15 | 2017-05-15 | A kind of regulating mechanism of projector's mean camber reflecting mirror and projector |
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| CN107728415B (en) * | 2017-10-20 | 2024-04-26 | 中国华录·松下电子信息有限公司 | Ultra-short focal length projector and polarizing plate adjustment and optical system inspection method thereof |
| CN107807434A (en) * | 2017-10-25 | 2018-03-16 | 中山联合光电科技股份有限公司 | A kind of adjustable optical lens of lens position and its method for adjusting eyeglass |
| CN108508684A (en) * | 2018-03-19 | 2018-09-07 | 中山联合光电科技股份有限公司 | A kind of camera lens for short focus projector |
| CN109061993A (en) * | 2018-10-16 | 2018-12-21 | 舜宇光学(中山)有限公司 | Reflecting mirror is adjustable projection arrangement |
| CN109448603A (en) * | 2018-12-19 | 2019-03-08 | 上海利越文化传播有限公司 | A kind of universal Ads on Vehicles delivery device |
| CN110682523B (en) * | 2019-10-15 | 2021-09-28 | 浙江隐齿丽医学技术有限公司 | Film pressing device |
| CN116560038B (en) * | 2023-05-22 | 2024-01-09 | 江苏泽景汽车电子股份有限公司 | Mirror mounting structure and head-up display |
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| JP2014139608A (en) * | 2013-01-21 | 2014-07-31 | Nitto Kogaku Kk | Curved mirror attachment structure |
| CN105159015A (en) * | 2015-09-21 | 2015-12-16 | 海信集团有限公司 | Lens assembly |
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| WO2017047194A1 (en) * | 2015-09-18 | 2017-03-23 | 日東光学株式会社 | Mirror holding mechanism |
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| JP6578790B2 (en) * | 2015-07-30 | 2019-09-25 | 株式会社リコー | Reflective mirror holding structure, projection optical system unit, optical engine, and image projection apparatus |
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| JP2014139608A (en) * | 2013-01-21 | 2014-07-31 | Nitto Kogaku Kk | Curved mirror attachment structure |
| JP2016180935A (en) * | 2015-03-25 | 2016-10-13 | セイコーエプソン株式会社 | Projection optical device and projector |
| WO2017047194A1 (en) * | 2015-09-18 | 2017-03-23 | 日東光学株式会社 | Mirror holding mechanism |
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