CN105785542B - The ultrashort zoom lens locking structure of projector - Google Patents
The ultrashort zoom lens locking structure of projector Download PDFInfo
- Publication number
- CN105785542B CN105785542B CN201610310043.9A CN201610310043A CN105785542B CN 105785542 B CN105785542 B CN 105785542B CN 201610310043 A CN201610310043 A CN 201610310043A CN 105785542 B CN105785542 B CN 105785542B
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- CN
- China
- Prior art keywords
- compact heap
- screw
- lens
- zoom lens
- projector
- 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.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Projection Apparatus (AREA)
Abstract
A kind of ultrashort zoom lens locking structure of projector, including upper compact heap, lower compact heap, it is characterised in that：Described upper compact heap, the centre of lower compact heap are arch shape, the both ends connection plane of arch shape, plane connection facade, have projection on facade, upper compact heap, lower compact heap plane on have screw and positioning hole；Beneficial effect is：The projector lens locked screw direction parallel with lens axis is changed to the direction vertical with lens axis, so that the tightening operation of locked screw is not influenceed by ultrashort zoom lens pre-group, and it is simple to operate, shorten the installation camera lens time, be advantageous to produce in batches, camera lens easy installation and removal.
Description
Technical field
The present invention relates to a kind of projector, and in particular to a kind of locking structure of the ultrashort focal length lenses of projector.
Background technology
At present, the general fixed form of projector lens be camera lens is close to be positioned at light engine be accurately positioned face
On, then it is fastened on along camera lens axial lock key screw camera lens on light engine fuselage（As shown in Figure 1）, but using ultrashort Jiao
During away from camera lens, because the external diameter of ultrashort zoom lens pre-group 6 can be bigger, when screwing locked screw 5 vertically, because of operating space not
Sufficient and very difficult operation；Simultaneously because the space near volume relationship locked screw can not be made very big, therefore, locked screw one
As be all to use hexagon socket head cap screw, had some using die nut and a little screw locked screw, it is time consuming in operation, it is unfavorable
In bulk production.
The content of the invention
The purpose of the present invention is exactly for overcome the deficiencies in the prior art, there is provided a kind of ultrashort zoom lens lock of projector pays knot
Structure.
The technical solution used in the present invention is to achieve the above object：A kind of ultrashort zoom lens locking structure of projector,
Including upper compact heap, lower compact heap, it is characterised in that：Described upper compact heap, the centre of lower compact heap are arch shape, arch shape
Both ends connection plane, plane connection facade, have projection on facade, upper compact heap, lower compact heap plane on have screw and
Positioning hole.There is lock to pay screw and alignment pin on light engine fuselage.
The ultrashort zoom lens locking structure of a kind of projector in accordance with the above, it is characterised in that：Described upper compact heap
It is identical with the shape of lower compact heap.
Present invention beneficial effect compared with prior art is：By the projector lens locked screw side parallel with lens axis
To being changed to the direction vertical with lens axis so that the tightening operation of locked screw is not influenceed by ultrashort zoom lens pre-group,
It is simple to operate under the premise of the positioning precision of maintenance camera lens, the installation camera lens time is shortened, is advantageous to produce in batches, camera lens peace
Fill convenient disassembly.
The present invention will be further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is positioning and the fixed form schematic diagram of the ultrashort zoom lens of prior art projector；
Fig. 2 is embodiments of the invention structural representation；
Fig. 3 is Fig. 2 structure expanded view；
Fig. 4 is the operation principle signal of the embodiment of the present invention.
Icon explanation：1. focal length lenses；2. light engine fuselage；3. locating surface；4. locating dowel；5. locked screw；6.
Camera lens pre-group；Compact heap on 7.；8. lower compact heap；9. facade；10. projection；11. screw；12. positioning hole；13. lock
Pay screw；14. alignment pin.
Embodiment
Accompanying drawing 1 is positioning and the fixed form schematic diagram of the ultrashort zoom lens of prior art projector, ultrashort focal length lenses 1
It is positioned on light engine fuselage 2, is positioned by locating surface 3 and locating dowel 4, fastening is paid by the lock of locked screw 5 of axial direction, because of mirror
Head pre-group 6 is bigger, the operating space deficiency of locked screw, is bit by bit screwed with special spanner, extremely difficult.
Embodiment
Accompanying drawing 2 is the structural representation of the embodiment of the present invention, and Fig. 3 is Fig. 2 structure expanded view, and Fig. 4 is implementation of the present invention
The operation principle signal of example；A kind of ultrashort zoom lens locking structure of projector of the present invention, including upper compact heap 7, lower compact heap 8,
Described upper compact heap 7, the centre of lower compact heap 8 are arch shape, the both ends connection plane of arch shape, plane connection facade 9, are stood
Have projection 10 on face 9, upper compact heap 7, lower compact heap 8 plane on have screw 11 and positioning hole 12, in light engine fuselage 2
On have lock pay screw 13 and an alignment pin 14.Ultrashort focal length lenses 1 are arranged on light engine fuselage 2 by locating surface 3 and positioning
After post 4 positions, camera lens is pushed down with compact heap 7 and lower compact heap 8, positioned by alignment pin 14, there are 4 alignment pins 14 on fuselage
Positioned for upper compact heap 7 and lower compact heap 8, being tightened in lock through screw 11 with locked screw 5 is paid in screw 13, and regulation lock is paid
There is projection 10 to apply pressure to camera lens locating surface 3 on the pressure of screw 5, upper compact heap 7 and the facade 9 of lower compact heap 8, camera lens is determined
Position.The direction parallel with lens axis of projector lens locked screw 5 is thus changed to the direction vertical with lens axis, made
Obtain the tightening operation of locked screw is not influenceed by ultrashort zoom lens pre-group, and letter is operated under the premise of the positioning precision of camera lens is maintained
Folk prescription just, shortens the installation camera lens time, is advantageous to produce in batches, camera lens easy installation and removal.
Above-described upper compact heap 7 and the lower shape of compact heap 8 be basically identical, is easy to process and produces in batches, can be with
Upper compact heap 7 and lower compact heap 8 are made into same shape.
Claims (1)
1. a kind of ultrashort zoom lens locking structure of projector, including upper compact heap, lower compact heap, it is characterised in that：Described is upper
Compact heap, the centre of lower compact heap are arch shape, and the both ends of arch shape connect plane, and plane connects facade, has projection on facade,
Upper compact heap, lower compact heap plane on have screw and positioning hole；Ultrashort zoom lens are arranged on light engine fuselage by fixed
Plane and locating dowel positioning, camera lens is pushed down, have 4 alignment pins to be used on light engine fuselage with compact heap and lower compact heap
Upper compact heap and the positioning of lower compact heap, it is tightened in lock through screw with locked screw and pays in screw, adjust the pressure of locked screw,
Projection on upper compact heap and lower compact heap facade applies pressure to the locating surface of camera lens, and camera lens is positioned；Locked screw and mirror
The axis of head is vertical so that the tightening operation of locked screw is not influenceed by ultrashort zoom lens pre-group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310043.9A CN105785542B (en) | 2016-05-12 | 2016-05-12 | The ultrashort zoom lens locking structure of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310043.9A CN105785542B (en) | 2016-05-12 | 2016-05-12 | The ultrashort zoom lens locking structure of projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105785542A CN105785542A (en) | 2016-07-20 |
| CN105785542B true CN105785542B (en) | 2018-03-06 |
Family
ID=56401284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610310043.9A Active CN105785542B (en) | 2016-05-12 | 2016-05-12 | The ultrashort zoom lens locking structure of projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105785542B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744652A (en) * | 1986-12-22 | 1988-05-17 | Schneider Corporation Of America | Focusing system for a transparency projector |
| JP4121779B2 (en) * | 2002-05-21 | 2008-07-23 | 三洋電機株式会社 | Lens mounting device and projection-type image display device |
| JP2010164684A (en) * | 2009-01-14 | 2010-07-29 | Fujinon Corp | Projection lens unit |
| GB2482289B (en) * | 2010-07-26 | 2016-04-06 | Barco Nv | Position adjustment system for a projection lens |
| CN204945473U (en) * | 2015-08-04 | 2016-01-06 | 江苏艾洛维显示科技股份有限公司 | A kind of can 360 ° projection camera lenses |
| CN205620598U (en) * | 2016-05-12 | 2016-10-05 | 山西寰烁电子科技股份有限公司 | Structure is paid to projector's ultrashort burnt camera lens lock |
-
2016
- 2016-05-12 CN CN201610310043.9A patent/CN105785542B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105785542A (en) | 2016-07-20 |
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