CN206431413U - Projector optical-mechanical - Google Patents
Projector optical-mechanical Download PDFInfo
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- CN206431413U CN206431413U CN201720047268.XU CN201720047268U CN206431413U CN 206431413 U CN206431413 U CN 206431413U CN 201720047268 U CN201720047268 U CN 201720047268U CN 206431413 U CN206431413 U CN 206431413U
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- Prior art keywords
- focusing ring
- briquetting
- mechanical
- projector optical
- inner lens
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Abstract
The utility model is related to projector optical-mechanical, and the projector optical-mechanical includes outer lens barrel, inner lens cone, focusing ring, focusing ring connector, guiding parts, motor, gear and rack；The outer surface of inner lens cone, which is provided with annular groove, inner lens cone, is provided with optical element；Oblique hole and pilot hole are provided with outer lens barrel, epi mirror jacket casing is on inner lens cone；Focusing ring is located in annular groove, and, annular groove is limited in the axial direction in annular groove slidably；Focusing ring connector is through oblique hole and can be moved in oblique hole, and one end of focusing ring connector is detachably connected with focusing ring；Guiding parts is detachably connected through pilot hole with inner lens cone, is limited by pilot hole, and guiding parts can only be axially moveable in pilot hole；Motor is connected with gear；Wheel and rack is meshed；Rack is provided with fitting recess, and fitting recess is buckled in the other end of focusing ring connector.The projector optical-mechanical that the utility model is provided realizes the function of automatic focusing, has the advantages that focusing accuracy is high.
Description
Technical field
The utility model is related to projector's technical field, and in particular to a kind of projector optical-mechanical.
Background technology
Projecting apparatus is also known as projector, be it is a kind of can be by the equipment on image or VIDEO PROJECTION to curtain, can be by not
The same same computer of interface, DV etc., which is connected, plays corresponding vision signal.Projecting apparatus is widely used in family, office,
School and public place of entertainment.
Because the placement location of projector is different, between metope or curtain that projector equipment and its projected image are projected
Distance is also different, in order that the picture cast out is relatively sharp, typically the focal length of camera lens is adjusted accordingly.
Therefore, there are corresponding focus control or focusing structure in most of projector equipment, existing focusing module is usually manual tune
Jiao, but this focusing mode is inaccurate.Portable projector is typically placed on the first-class platform of table and projected, due to throwing
The distance between the placement location of shadow instrument and projection screen are not fixed, and are required for before being projected every time using the projecting apparatus manually
Projecting apparatus is focused, untill projected picture is clear, therefore, manual focusing make it that the use of projecting apparatus is not very square
Just, the particularly use of micro projector.
The content of the invention
The technical problems to be solved in the utility model is, in view of the shortcomings of the prior art there is provided a kind of projector optical-mechanical,
Realization automatically controls the purpose that ray machine camera lens only axially moves, the defect for overcoming manual focusing inaccurate and cumbersome.
The utility model be solve the technical scheme that is used of above-mentioned technical problem for：
The utility model provides a kind of projector optical-mechanical, the projector optical-mechanical include inner lens cone, outer lens barrel, focusing ring,
Focusing ring connector, guiding parts, motor, gear and rack；
The outer surface of the inner lens cone, which is provided with annular groove, the inner lens cone, is provided with optical element；
Oblique hole and pilot hole are provided with the outer lens barrel, the epi mirror jacket casing is on the inner lens cone；
The focusing ring is located in the annular groove, and, is limited in the axial direction described in the annular groove slidably
Annular groove；
The focusing ring connector is through the oblique hole and can be moved in the oblique hole, the focusing ring connector
One end be detachably connected with the focusing ring；
The guiding parts is detachably connected through the pilot hole with the inner lens cone, is limited by the pilot hole,
The guiding parts can only be axially moveable in the pilot hole；
The motor is connected with the gear；
The gear is meshed with the rack；
The rack is provided with fitting recess, and the fitting recess is buckled in the other end of the focusing ring connector.
Improved as of the present utility model, the projector optical-mechanical also includes briquetting one and briquetting two, the He of briquetting one
Briquetting two is removable installed in the outer surface of the outer lens barrel, the briquetting one and briquetting two have respectively not with the epi mirror
The stop portions of cylinder contact, the rack both sides have extension, respectively positioned at the institute of the briquetting one and the briquetting two
The lower section of stop portions is stated, the rack may move between the briquetting one and briquetting two.
Further, the maximum axial displacement of the rack is limited by the oblique hole, without by the briquetting one and pressure
The limitation of block two.
Improved as of the present utility model, the guiding parts is connected through a screw thread with the inner lens cone.
Improved as of the present utility model, the guiding parts is connected with the inner lens cone by fastener.
Improved as of the present utility model, the guiding parts is screw, and the displacement of its nut is by the pilot hole
Limitation.
As it is of the present utility model improve, the projector optical-mechanical also include control module, the control module with it is described
Motor is connected, the motion for controlling motor according to projected picture.
Improved as of the present utility model, one end of the focusing ring connector is connected through a screw thread with the focusing ring.
Improved as of the present utility model, the length of the focusing ring radially and the depth phase of the annular groove
Deng.
Improved as of the present utility model, the projector optical-mechanical also includes support, the support is connected with the motor,
It is detachably connected with the outer lens barrel.
The projector optical-mechanical that the utility model is provided, passes through the motor, gear, rack, focusing ring connector and focusing
Distinctive connected mode causes band carry-over bar diagonally hole motion when motor driven gear wheel is radially movable between ring, so as to drive
Occur relative motion between inner lens cone and outer lens barrel, with reference to the limitation of pilot hole so that inner lens cone can only be axially moveable, without
Rotate, therefore the optical mirror slip of inner lens cone will not rotate, so as to improve the precision and efficiency of focusing.In addition, this
Utility model additionally provides briquetting one and briquetting two, further prevents in pinion rotation or is moving projector optical-mechanical
Process middle rack deviates its sphere of action.The projector optical-mechanical that the utility model is provided is applied in projector, and it is by motor band
The radial motion that moving gear is done is converted into the axial movement of inner lens cone, realizes the function of automatic focusing, and focusing accuracy is high, effect
Rate is high.In actual applications, requirement that can also be according to varying environment to focusing accuracy and requirement selection to projector's volume are
No dismounting motor, with flexibility it is strong the characteristics of.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the schematic perspective view of the utility model projector optical-mechanical in the prior art；
Fig. 2 is the part axial sectional view of the projector optical-mechanical of the embodiment of the utility model one；
Fig. 3 is the partial exploded perspective view of the utility model projector optical-mechanical in the prior art；
Fig. 4 is the perspective view of the utility model inner lens cone of projector optical-mechanical in the prior art；
Fig. 5 is the partial exploded perspective view of the utility model projector optical-mechanical in the prior art.
Embodiment
In conjunction with accompanying drawing, preferred embodiment of the present utility model is elaborated.
Fig. 1 to Fig. 5 shows the projector optical-mechanical of the embodiment of the utility model one.Projector optical-mechanical is typically placed in light
In owner's body shell, optical machine main body shell is provided with optical element, is the primary structure that projector optical-mechanical is clearly presented, therefore do not exist
Optical machine main body shell is shown in accompanying drawing.As shown in Figures 1 to 5, the projector optical-mechanical that the utility model is provided includes outer lens barrel 1, interior
Lens barrel 2, focusing ring 3, focusing ring connector 4, guiding parts 5, motor 6, gear 7 and rack 8.
The outer surface of inner lens cone 2, which is provided with annular groove 16, inner lens cone 2, is provided with optical element；Optical element is to refer to shape
Can be that the optical element quantity in lens or other optical elements, inner lens cone 2 can be one or more into the element of light path.
The distance between optical element on optical element and optical machine main body shell in inner lens cone 2 determines the size of focal length, therefore this reality
It will realize that the relatively outer lens barrel 1 of inner lens cone 2 is axially moved with new, so that optical element and ray machine in inner lens cone 2
The distance between optical element in body shell changes, and realizes the function of focusing.
Oblique hole 13 and pilot hole 15 are provided with outer lens barrel 1, outer lens barrel 1 is sleeved on inner lens cone 2.
Focusing ring 3 is located in annular groove 16, and, annular groove 16 is limited in the axial direction in annular groove 16 slidably.Adjust
When burnt ring 3 is located in annular groove 16, the depth of the length of focusing ring 3 radially and annular groove 16 can be with equal, can also
Unequal, it should be met when outer lens barrel 1 is on inner lens cone 2, and focusing ring 3 avoids mutually extruding with the outer inwall of lens barrel 1.In this reality
Apply in mode, the length of focusing ring 3 radially is more than the depth of annular groove 16.Focusing ring 3 in annular groove 16 slidably,
Therefore, when the friction between the inwall of focusing ring 3 and annular groove 16 is smaller, inner lens cone 2 will not follow 3 turns of focusing ring substantially
It is dynamic.In actual use, lubricant can be added between focusing 3 and annular groove 16 to reduce friction.Focusing ring 3 is in axial direction
The upper limit is located at annular groove 16, when axial displacement occurs for focusing ring 3, and annular groove 16 and then will produce identical axial direction by focusing ring 3
Displacement.
Focusing ring connector 4 is through oblique hole 13 and can be moved in oblique hole 13.In the presence of oblique hole 13, focusing
The movement locus of ring connector 4 is not in sagittal plane.One end of focusing ring connector 4 is detachably connected with focusing ring 3.It is logical
Often, in assembling process, after outer lens barrel 1 is sleeved on inner lens cone 2, focusing ring connector 4 one end through oblique hole 13 with
Focusing ring 3 is detachably connected.The mode of being detachably connected can be threaded connection or non-threaded connection.In the present embodiment,
One end of focusing ring connector 4 is provided with screw thread, and focusing ring 3 is provided with screwed hole 18, the one end for ring connector 4 of focusing and focusing ring 3
It is connected through a screw thread.
Guiding parts 5 is detachably connected through pilot hole 15 with inner lens cone 2, is limited by pilot hole 15, guiding parts 5 exists
It can only be axially moveable in pilot hole 15.In the present embodiment, the outer surface of inner lens cone 2 is additionally provided with blind hole 14, outer 1 set of lens barrel
After inner lens cone 2, guiding parts 5 is connected through pilot hole 15 with the blind hole 14 on inner lens cone 2.Because guiding parts 5 can only
It is axially moveable, therefore the inner lens cone 2 being connected with guiding parts 5 can only be also axially moveable, therefore guiding parts 5 and pilot hole
15 cooperation ensure that the relatively outer lens barrel 1 of inner lens cone 2 can only be axially moveable, without rotating.What the utility model was mentioned
The mode of being detachably connected can be threaded connection or non-threaded connection.For example, guiding parts 5 can be with inner lens cone 2 by tight
It is fixedly mounted with and puts 19 connections, fastener 19 can be screw, screw is connected through a screw thread through guiding parts 5 with inner lens cone 2, is fastened
Device 19 can also be rubber tack, and rubber tack is attached through guiding parts 5 with inner lens cone 2 by squeezing action.At other
In embodiment, guiding parts 5 is screw, and screw is connected through a screw thread through guiding parts 5 with inner lens cone 2, the shifting of its nut
Dynamic distance is limited by pilot hole 15.It should be noted that the embodiment that guiding parts 5 is detachably connected with inner lens cone 2 is not
It is limited to above two embodiment, guiding parts 5 can also cause what the movement of guiding parts 5 was limited by pilot hole 15 by other
Mode is detachably connected with inner lens cone 2.In the present embodiment, the removable displacement of the guiding parts 5 connects equal to focusing ring
Fitting 4 diagonally hole 13 move when maximum axial displacement, now the axial displacement of inner lens cone 2 by oblique hole 13 size limit
System.In other embodiments, size of the pilot hole 15 to guiding parts 5 can be changed so that the axial displacement of inner lens cone 2 also by
The limitation of pilot hole 15 and the size of guiding parts 5.The quantity of guiding parts 5 can be one or more, correspondingly, on outer lens barrel 1
The pilot hole 15 corresponding to the quantity of guiding parts 5 should be provided with.In the present embodiment, the quantity of guiding parts 5 is 2, accordingly
Ground, two pilot holes 15 are symmetrically distributed on outer lens barrel 1.
Motor 6 is connected with gear 7, is detachably connected with outer lens barrel 1, gear 7 is meshed with rack 8.Motor 6 receives control
Signal rear drive gear 7 processed is rotated, and gear 7 is moved with carry-over bar 8.In the present embodiment, the control signal that motor 6 is received
Produced inside projector optical-mechanical, now, projector optical-mechanical also includes control module, and control module is connected with motor 6, for root
The motion of motor 6 is controlled according to projected picture.For example, control module may include camera and processor, during focusing, take the photograph
As head detects the picture that projector optical-mechanical is projected, corresponding program is then fed back to processor, processor passes through to collection
Whether image clearly comes to the output control signal of motor 6, until finally giving most clearly image.In other embodiment
In, the machine that the control signal that motor 6 is received can be outside projector optical-mechanical is produced, and motor 6, which receives other, has detection defeated
The control signal rear drive gear 7 of the instrument output of frame out definition is rotated.Motor 6 is detachably connected with outer lens barrel 1, therefore
Requirement that can be according to varying environment to focusing accuracy and the requirement of projector's volume choose whether to dismantle motor 6.Motor 6 and epi mirror
Cylinder 1 can be directly connected to, and can be also indirectly connected with by other elements, in the present embodiment, and projector optical-mechanical also includes support 12,
Support 12 is connected with motor 6, is detachably connected with outer lens barrel 1.
Rack 8 is provided with fitting recess 17, and fitting recess 17 is buckled in the other end of focusing ring connector 4.The fitting recess 17 of rack 8 is detained
In the other end of focusing ring connector 4 so that rack 8 drives focusing ring connector 4 diagonally to move in hole 13 in motion, gear
Radial motion be converted into focusing ring connector 4 oblique movement, focusing ring connector 4 oblique movement cause it is connected
Focusing ring 3 drives inner lens cone 2 to move, and guiding parts 5 defines that inner lens cone 2 can only be axially moveable, therefore focusing ring 3 drives
Inner lens cone 2 produces axial displacement, i.e. with outer lens barrel 1 axial relative motion occurs for inner lens cone 2.The movement of focusing ring connector 4
Limited by oblique hole 13, therefore, the maximum axial displacement of rack 8 is also limited by oblique hole.In the present embodiment, institute
Stating projector optical-mechanical also includes briquetting 1 and briquetting 2 11, and briquetting 1 and briquetting 2 11 are removable installed in outer lens barrel 1
Outer surface, briquetting 1 and briquetting 2 11 have the stop portions not contact with outer lens barrel 1 respectively, and the both sides of rack 8 have
There is extension, respectively positioned at briquetting 1 and the lower section of the stop portions of briquetting 2 11, rack 8 is in briquetting 1 and pressure
It may move between block 2 11.In the present embodiment, extension is without tooth.In the present embodiment, the maximum axial of rack 8
Displacement is limited by the oblique hole 13, without the limitation of compression block 1 and briquetting 2 11, in other embodiments, is passed through
Regulation the distance between briquetting 1 and briquetting 2 11 can also make the maximum axial displacement compression block 1 and briquetting 2 11 of rack 8
Limitation, in this case, need to be accordingly based upon the control signal of the distance between briquetting 1 and briquetting 2 11 to motor 6
It is adjusted.
It should be noted that when element is referred to as " being arranged at " another element, it can be directly on another element
Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.
The projector optical-mechanical that the utility model is provided, passes through motor 6, gear 7, rack 8, focusing ring connector 4 and focusing
Distinctive connected mode make it that band carry-over bar 8 is diagonally moved in hole 13 when the drive gear 7 of motor 6 is radially movable between ring, from
And drive between inner lens cone 2 and outer lens barrel 1 and occur relative motion, with reference to the limitation of pilot hole 15 so that inner lens cone 2 can only be along axle
It will not be rotated to the optical mirror slip of movement, therefore inner lens cone 2, so as to improve the precision and efficiency of focusing.In addition, this reality
Briquetting 1 and briquetting 2 11 are additionally provided with new, further prevents when gear 7 is rotated or is moving projector light
Rack 8 deviates its sphere of action during machine.The projector optical-mechanical that the utility model is provided is applied in projector, and it is by horse
Up to the axial movement that inner lens cone is converted into the radial motion that moving gear is done, the function of automatic focusing, focusing accuracy are realized
Height, efficiency high.In actual applications, requirement that can also be according to varying environment to focusing accuracy and the requirement of projector's volume selection
Whether dismantle motor 6, with flexibility it is strong the characteristics of.
It should be appreciated that above example is only to illustrate the technical solution of the utility model, it is rather than its limitations, right
For those skilled in the art, the technical scheme described in above-described embodiment can be modified, or to which part skill
Art feature carries out equivalent substitution；And all such modifications and replacement, it should all belong to the protection of the utility model appended claims
Scope.
Claims (10)
1. a kind of projector optical-mechanical, it is characterised in that including：Inner lens cone, outer lens barrel, focusing ring, focusing ring connector, guide part
Part, motor, gear and rack；
The outer surface of the inner lens cone, which is provided with annular groove, the inner lens cone, is provided with optical element；
Oblique hole and pilot hole are provided with the outer lens barrel, the epi mirror jacket casing is on the inner lens cone；
The focusing ring is located in the annular groove, and, the annular is limited in the axial direction in the annular groove slidably
Groove；
The focusing ring connector is through the oblique hole and can be moved in the oblique hole, and the one of the focusing ring connector
End is detachably connected with the focusing ring；
The guiding parts is detachably connected through the pilot hole with the inner lens cone, is limited by the pilot hole, described
Guiding parts can only be axially moveable in the pilot hole；
The motor is connected with the gear；
The gear is meshed with the rack；
The rack is provided with fitting recess, and the fitting recess is buckled in the other end of the focusing ring connector.
2. a kind of projector optical-mechanical according to claim 1, it is characterised in that the projector optical-mechanical also includes briquetting one
With briquetting two, the briquetting one and briquetting two are removable installed in the outer surface of the outer lens barrel, the briquetting one and briquetting
Two have the stop portions not contacted with the outer lens barrel respectively, and the rack both sides have extension, respectively positioned at described
The lower section of the stop portions of briquetting one and the briquetting two, the rack is removable between the briquetting one and briquetting two
It is dynamic.
3. a kind of projector optical-mechanical according to claim 2, it is characterised in that the maximum axial displacement of the rack is by institute
The limitation in oblique hole is stated, without being limited by the briquetting one and briquetting two.
4. a kind of projector optical-mechanical according to claim 1 or 2 or 3, it is characterised in that the guiding parts with it is described interior
Lens barrel is connected through a screw thread.
5. a kind of projector optical-mechanical according to claim 1 or 2 or 3, it is characterised in that the guiding parts with it is described interior
Lens barrel is connected by fastener.
6. a kind of projector optical-mechanical according to claim 1 or 2 or 3, it is characterised in that the guiding parts is screw,
The displacement of its nut is limited by the pilot hole.
7. a kind of projector optical-mechanical according to claim 1, it is characterised in that the projector optical-mechanical also includes control mould
Group, the control module is connected with the motor, the motion for controlling motor according to projected picture.
8. a kind of projector optical-mechanical according to claim 1 or 2 or 3, it is characterised in that the one of the focusing ring connector
End is connected through a screw thread with the focusing ring.
9. a kind of projector optical-mechanical according to claim 1 or 2 or 3, it is characterised in that the focusing ring is radially
Length and the annular groove deep equality.
10. a kind of projector optical-mechanical according to claim 1 or 2 or 3 or 7, it is characterised in that the projector optical-mechanical is also
Including support, the support is connected with the motor, is detachably connected with the outer lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047268.XU CN206431413U (en) | 2017-01-16 | 2017-01-16 | Projector optical-mechanical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047268.XU CN206431413U (en) | 2017-01-16 | 2017-01-16 | Projector optical-mechanical |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206431413U true CN206431413U (en) | 2017-08-22 |
Family
ID=59583132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720047268.XU Active CN206431413U (en) | 2017-01-16 | 2017-01-16 | Projector optical-mechanical |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206431413U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075846A (en) * | 2020-12-23 | 2021-07-06 | 深圳市安华光电技术有限公司 | Optical machine and projector |
| CN113391512A (en) * | 2020-12-23 | 2021-09-14 | 深圳市安华光电技术有限公司 | Focusing mechanism of projector with automatic focusing function, lens and projector |
| CN114077144A (en) * | 2021-08-13 | 2022-02-22 | 深圳市安华光电技术有限公司 | Automatic focusing lens for projector and projector |
| JP7420881B2 (en) | 2021-12-08 | 2024-01-23 | 安克▲創▼新科技股▲フン▼有限公司 | Camera lens adjustment mechanism, projection module and projection device |
-
2017
- 2017-01-16 CN CN201720047268.XU patent/CN206431413U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075846A (en) * | 2020-12-23 | 2021-07-06 | 深圳市安华光电技术有限公司 | Optical machine and projector |
| CN113391512A (en) * | 2020-12-23 | 2021-09-14 | 深圳市安华光电技术有限公司 | Focusing mechanism of projector with automatic focusing function, lens and projector |
| CN114077144A (en) * | 2021-08-13 | 2022-02-22 | 深圳市安华光电技术有限公司 | Automatic focusing lens for projector and projector |
| CN114077144B (en) * | 2021-08-13 | 2024-04-02 | 深圳市安华光电技术股份有限公司 | Automatic focusing lens for projector and projector |
| JP7420881B2 (en) | 2021-12-08 | 2024-01-23 | 安克▲創▼新科技股▲フン▼有限公司 | Camera lens adjustment mechanism, projection module and projection device |
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Address after: 518067 3C, 3D, Block CD, Building 7, Xinghua Industrial Building, No. 4, Industrial 6th Road, Huaguoshan Community, Merchants Street, Nanshan District, Shenzhen, Guangdong Province Patentee after: Shenzhen Anhua Photoelectric Technology Co.,Ltd. Address before: 518000 room 201-202, building D, Chuangye No.1, 43 Yanshan Road, Shekou, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ANHUA OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |