CN209327654U - A kind of base mechanism collecting High Precision Automatic focusing and IR-cut one - Google Patents
A kind of base mechanism collecting High Precision Automatic focusing and IR-cut one Download PDFInfo
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- CN209327654U CN209327654U CN201920078602.7U CN201920078602U CN209327654U CN 209327654 U CN209327654 U CN 209327654U CN 201920078602 U CN201920078602 U CN 201920078602U CN 209327654 U CN209327654 U CN 209327654U
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Abstract
The utility model provides a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one, including pedestal, a through-hole is opened up in the middle part of the pedestal, the through-hole two sides of the pedestal are respectively arranged with autofocus mechanism and the bis- filter disc switching mechanisms of IR-cut, the optical filter of the bis- filter disc switching mechanisms of the IR-cut is filtered the light before entering through-hole, and autofocus mechanism carries out automatic focusing to the light from through-hole.The base mechanism can organically combine Focusing mechanism and the bis- filter disc switching mechanisms of IR-cut in pedestal two sides, while meeting height focusing, solve the problems, such as that rear lens focus can still increase IR-cut in short-term.
Description
Technical field
The utility model relates to monitoring camera technical field more particularly to a kind of High Precision Automatic focusing of collection and IR-cut
The base mechanism of one.
Background technique
With the raising of increasingly mature and broad masses of the people's security protection consciousness of camera lens industry, on the market to security lens
Requirement it is also higher and higher, 4K camera lens till now is developed by initial VGA, practises physiognomy and is also developed by now from 1/4 " most gone out
1/1.8 " is even more big, this differentiation undoubtedly also increases many difficulty to the design of optical system.In high pixel and big picture
Under the double requirements in face, leads to rear lens focus sensitivity and back focal length degree shortens.For this rear burnt sensitive problem, traditional is logical
It crosses screw thread to connect with pedestal, can be manually rotated camera lens to focus the practical requirement that can no longer meet optical system of this operation, light
Burnt susceptibility 0.005mm after system, is focused using the threaded connection of M16XP0.5, the mobile 0.005mm of camera lens, it is only necessary to turn
It is 3.5 ° dynamic, it is converted on diameter 20mm, rotation arc length also just only has 0.6mm, and can be manually rotated camera lens and be unable to reach this at all
The requirement of precision.
In existing patent document, patent name be a kind of monitoring camera focus adjusting mechanism (Authorization Notice No.:
CN103217856B " the utility model can only edge by the limit of strip guide groove due to guide pin for the technology that illustrates to disclose)
Axial movement, guide pin are mutually fixed with camera lens connector sleeve, and camera lens is on camera lens connector sleeve, and guide pin is again through the spiral shell on turning set
Shape pilot hole is revolved, in this way when the driven gear rotation on driving gear driving turning set, because driven gear and turning set are linked as
One, the rotation of driven gear allow for the driving guide pin of the spiral shape pilot hole on turning set and are axially moveable, and camera lens just follows
Guide pin axially moves, therefore the rotation by controlling driving gear can be achieved with automatic or manual focusing, focus more convenient,
Overall structure is also relatively simple；In addition the moving distance of camera lens is to be cooperated by the spiral shape pilot hole on turning set with guide pin come real
It is existing, can realize very subtle adjustment, focusing accuracy is higher ".Although above-mentioned disclosed technical solution discloses a kind of focusing
Technology, but the focus adjusting mechanism is not defined axial movement, is easy when focusing rotation, turning set shifts and leads
Focusing is caused to be not sufficiently stable, focusing accuracy is also by large effect.Meanwhile the prior art needs to meet to adapt to big image planes
Increase the requirement of IR-cut switch while shorter rear burnt, and existing disclosed technology is difficult to.
Utility model content
The utility model provides a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one, meets height and focuses
While solve the problems, such as that rear lens focus can still increase IR-cut in short-term.
In order to solve the above-mentioned technical problem, technical solution adopted in the utility model are as follows:
It is a kind of to collect the High Precision Automatic base mechanism focused with IR-cut one, including pedestal, it is opened in the middle part of the pedestal
If a through-hole, the through-hole two sides of the pedestal are respectively arranged with autofocus mechanism and the bis- filter disc switching mechanisms of IR-cut, the IR-
The optical filter of the bis- filter disc switching mechanisms of cut is filtered the light before entering through-hole, and autofocus mechanism is to from through-hole
Light carries out automatic focusing.
Further, the autofocus mechanism includes the fixes sleeve for being installed in the middle of the base, turning set, camera lens
Attachment base, first motor and reduction gearbox, the turning set are socketed in the outside of the fixes sleeve, and the camera lens connects cover for seat
It connects in the inside of the fixes sleeve, the first motor is sequentially connected the turning set by reduction gearbox；The turning set
Inner surface is provided with a plurality of helical guide channels, be evenly equipped in the fixes sleeve it is identical with helical guide channel quantity and
The pilot hole opened up along axial direction further includes activity-oriented screw identical with guiding hole number, and activity-oriented screw one end is fixed
Position is adapted in the excircle of camera lens attachment base, the other end penetrates from pilot hole and is flexibly connected the helical guide channel.It is above-mentioned
Structure is different from the technical solution disclosed in technical background, realizes more optimized structure, the higher effect of focusing accuracy.
Preferably, the inner surface of the turning set is provided with 3 helical guide channels, increases the quantity of helical guide channel
Be conducive to the stability for further promoting focusing.
Further, the first arc limit slot is along the circumferential direction offered in the fixes sleeve, further includes limited screw,
Limited screw one end limit is in the first limiting slot, and the other end is fixed on the turning set, and turning set is driven to rotate
When, limited screw can the limit activity in the first arc limit slot.Turning set can be effectively prevented along axial direction side in above structure
To offset, the stability of focusing is further improved, to improve the precision of focusing.
Further, there is at least one second arc far from pedestal one side edge is peripherally disposed in the fixes sleeve
Shape limiting slot is provided with the arc-shaped limit block to match with second arc limit slot on the inner surface of the turning set, turns
When dynamic set rotation, arc-shaped limit block is moved along the second arc limit slot.Again, turning set edge can be effectively prevented in above structure
Axial direction offset, further improves the stability of focusing, to improve the precision of focusing
Further, the bis- filter disc switching mechanisms of the IR-cut include the second motor, rotating handle and activity template, the activity
On piece is provided in full impregnated spectral filter arranged up and down and cutoff filter；Second motor is passed by rotating handle
The dynamic connection activity template, can make the geometric center of the full impregnated spectral filter on activity template and cutoff filter several
What center is alternately directed at the center of the through-hole.The full impregnated spectral filter and cutoff filter of activity template can be according to white
It and night are selected, and have further ensured imaging effect.
Further, the behaviour area moved up and down for activity template, the same side opening of the through-hole are provided on the pedestal
Middle part in the behaviour area, the bottom of the behaviour area offer an arc guide barrel, and the bottom of the activity template offers
One transmission hole, described rotating handle one end connect second motor, and the other end is flexibly connected the transmission hole, the arc
The top of guide groove is equal to the distance between two optical filter geometric centers with the lowermost linear distance；Activity template is from behaviour area
When top is moved to the lower part of behaviour area, the center of through-hole is directed at switching from the cutoff filter geometric center with activity template
Extremely it is aligned with full impregnated spectral filter geometric center.The structure realizes that entire switching mechanism carries out infrared cutoff in shorter space
Switching between optical filter and full impregnated spectral filter, accurate and clever structure meet back focal length from short demand, imaging effect
Fruit is good.
It further, further include front cover, the front cover is fixedly connected with pedestal and is formed a cavity, and the IR-cut is bis-
Filter disc switching mechanism is arranged in the cavity, and the bis- filter disc switching mechanisms of IR-cut further include mounting rack, and the second motor of institute is solid
It is scheduled on described mounting rack one end, the inside bottom of the front cover is provided with the deck for fixing the mounting rack.
Further, the deck be internally provided with second motor position be adapted bearing block.
Further, the bis- filter disc switching mechanisms of the IR-cut are detachably secured on the pedestal.
The utility model provides a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one, including pedestal, institute
It states and opens up a through-hole in the middle part of pedestal, the through-hole two sides of the pedestal are respectively arranged with autofocus mechanism and the bis- filter discs of IR-cut
The optical filter of switching mechanism, the bis- filter disc switching mechanisms of the IR-cut is filtered the light before entering through-hole, auto-focusing machine
Structure carries out automatic focusing to the light from through-hole.The base mechanism can pedestal two sides organically combine Focusing mechanism and
The bis- filter disc switching mechanisms of IR-cut, while meeting height focusing, IR- can still be increased in short-term by solving rear lens focus
The problem of cut.
Detailed description of the invention
Fig. 1 is a kind of structure for the base mechanism for collecting High Precision Automatic focusing and IR-cut one of the utility model embodiment
Schematic diagram；
Fig. 2 is the decomposition texture schematic diagram of Fig. 1；
Fig. 3 is the exploded structural schematic diagram at the second visual angle of Fig. 1；
Fig. 4 is the exploded structural schematic diagram of Fig. 1；
Fig. 5 is the partial structural diagram shown at fixes sleeve position in Fig. 1；
Fig. 6 is the structural schematic diagram of the present embodiment turning set；
Fig. 7 is the structural schematic diagram of the present embodiment camera lens attachment base.
Specific embodiment
With reference to the accompanying drawing, the embodiments of the present invention is specifically illustrated, attached drawing is only for reference and illustrates use, not structure
The limitation of pairs of the utility model patent protection scope.
As shown in Fig. 1 to 7, a kind of base mechanism collecting High Precision Automatic focusing and IR-cut one, including pedestal 1, institute
The middle part for stating pedestal 1 opens up a through-hole 11, and 11 two sides of through-hole of the pedestal are respectively arranged with autofocus mechanism and IR-cut
The optical filter of double filter disc switching mechanisms 7, the bis- filter disc switching mechanisms 7 of the IR-cut is filtered the light before entering through-hole 11,
Autofocus mechanism carries out automatic focusing to the light from through-hole 11.
As further improvement of this embodiment, the autofocus mechanism includes being installed in consolidating for 1 middle part of pedestal
Determine sleeve 2, turning set 3, camera lens attachment base 4, first motor 5 and reduction gearbox 6, the turning set 3 is socketed in the fixing sleeve
The outside of cylinder 2, the camera lens attachment base 4 are socketed in the inside of the fixes sleeve 2, and the first motor 5 passes through reduction gearbox 6
Be sequentially connected the turning set 3.Specifically, the reduction gearbox that the present embodiment uses is the reduction gearbox of the prior art, and reduction gearbox passes through
Driven gear 31 on one driving gear (not shown) transmission connection turning set.First motor 5 passes through existing first terminal
101 connection external circuits.
As further improvement of this embodiment, the inner surface of the turning set 3 is provided with a plurality of helical guide channels
32, it is evenly equipped in the fixes sleeve 2 identical with 32 quantity of helical guide channel and along the pilot hole 21 that axial direction opens up, also wraps
Activity-oriented screw 9 identical with 21 quantity of pilot hole is included, 9 one end of activity-oriented screw is fixed on the outer circle of camera lens attachment base 4
The position Zhou Shiying, the other end penetrate from pilot hole 21 and are flexibly connected the helical guide channel 32.In the present embodiment, the rotation
The inner surface of set 3 is provided with 3 helical guide channels 32.
As further improvement of this embodiment, the first arc-shaped limit is along the circumferential direction offered in the fixes sleeve 2
Slot 22 further includes limited screw 10, and in the first limiting slot 22, the other end is fixed on institute for 10 one end of limited screw limit
It states on turning set 3, when turning set 3 is driven to rotate, limited screw 10 can the limit activity in the first arc limit slot 22.
As the further improvement of the present embodiment, in the fixes sleeve 2 along the circumferential direction far from 1 one side edge of pedestal
It is provided at least one second arc limit slot 23, is provided on the inner surface of the turning set 3 and second arc-shaped limit
The arc-shaped limit block 33 that slot 23 matches, when turning set 3 rotates, arc-shaped limit block 33 is moved along the second arc limit slot 23.
As further improvement of this embodiment, the bis- filter disc switching mechanisms 7 of IR-cut include the second motor 71, rotation
Turning handle 72 and activity template 73 are provided in full impregnated spectral filter 731 arranged up and down and infrared cutoff on the activity template 73
Optical filter 732；Second motor 71 is sequentially connected the activity template 73 by rotating handle 72, can be made on activity template 73
The geometric center and 732 geometric center of cutoff filter of full impregnated spectral filter 731 are alternately aligned in the through-hole 11
The heart.Second motor 71 connects external circuit by existing Second terminal 201.
As further improvement of this embodiment, the behaviour area moved up and down for activity template 73 is provided on the pedestal 1
12, the ipsilateral opening of the through-hole 11 is in the middle part of the behaviour area 12, and the bottom of the behaviour area 12 offers an arc
Guide groove 13, the bottom of the activity template 73 offer a transmission hole 733, and described 72 one end of rotating handle connects second motor
71, the other end is flexibly connected the transmission hole 733, and the top and the lowermost linear distance of the arc guide barrel 13 are equal to
The distance between two optical filter geometric centers；When activity template 73 is moved to the lower part of behaviour area from the top of behaviour area, through-hole 11
Center be aligned and switch to and 731 geometry of full impregnated spectral filter from 732 geometric center of cutoff filter with activity template
Center alignment.Rotating handle is limited in the arc guide barrel 13 when rotating, and activity template only moves up and down when mobile, is not occurred
Transverse shifting.
Further include front cover 8 as further improvement of this embodiment, is clearly to need that there is one and optical filtering in the middle part of the front cover
The matched light passing window 83 of piece, the front cover 8 are fixedly connected with pedestal 1 and are formed a cavity, and the present embodiment, which is adopted, to be screwed,
The bis- filter disc switching mechanisms 7 of IR-cut are arranged in the cavity, and the bis- filter disc switching mechanisms 7 of IR-cut further include installation
Frame 70, the second motor 71 is fixed on described 70 one end of mounting rack, and the inside bottom of the front cover 8 is provided with for fixing
The deck 81 of the mounting rack 70.Specifically, deck is made of four cushion blocks and four hooks, and mounting rack is mounted on cushion block,
Four hooks carry out clamping to it.
Preferably, the deck 81 be internally provided with 71 position of the second motor be adapted bearing block 82, this
The stability of the second motor rotation can be improved in sample.
Optionally, the bis- filter disc switching mechanisms 7 of the IR-cut are detachably secured on the pedestal 1.The pedestal uses non-
It is often convenient, it can according to need and choose whether to need to be packed into the bis- filter disc switching mechanisms 7 of IR-cut.
Above disclosed is only the preferred embodiment of the utility model, and the right of the utility model cannot be limited with this
Protection scope, therefore equivalent variations made according to the patent scope of the utility model still belong to the model that the utility model is covered
It encloses.
Claims (10)
1. a kind of collect the High Precision Automatic base mechanism focused with IR-cut one, including pedestal, opened up in the middle part of the pedestal
One through-hole, it is characterised in that: the through-hole two sides of the pedestal are respectively arranged with autofocus mechanism and the bis- filter discs of IR-cut switch
The optical filter of mechanism, the bis- filter disc switching mechanisms of the IR-cut is filtered the light before entering through-hole, autofocus mechanism pair
Light from through-hole carries out automatic focusing.
2. a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one according to claim 1, feature exist
In: the autofocus mechanism includes the fixes sleeve for being installed in the middle of the base, turning set, camera lens attachment base, the first electricity
Machine and reduction gearbox, the turning set are socketed in the outside of the fixes sleeve, and the camera lens attachment base is socketed in the fixation
The inside of sleeve, the first motor are sequentially connected the turning set by reduction gearbox；The inner surface of the turning set is provided with
A plurality of helical guide channels are evenly equipped in the fixes sleeve identical with helical guide channel quantity and open up along axial direction
Pilot hole further includes activity-oriented screw identical with guiding hole number, and activity-oriented screw one end is fixed on camera lens attachment base
Excircle adapt to position, the other end penetrates from pilot hole and is flexibly connected the helical guide channel.
3. a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one according to claim 2, feature exist
In: the inner surface of the turning set is provided with 3 helical guide channels.
4. a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one according to claim 2, feature exist
In: the first arc limit slot is along the circumferential direction offered in the fixes sleeve, further includes limited screw, the limited screw one
In the first limiting slot, the other end is fixed on the turning set for end limit, and when turning set is driven to rotate, limited screw can be with
The limit activity in the first arc limit slot.
5. a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one according to claim 2, feature exist
In: there is at least one second arc limit slot far from pedestal one side edge is peripherally disposed in the fixes sleeve, it is described
The arc-shaped limit block to match with second arc limit slot is provided on the inner surface of turning set, when turning set rotates, arc
Shape limited block is moved along the second arc limit slot.
6. a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one according to claim 1-5,
It is characterized by: the bis- filter disc switching mechanisms of IR-cut include the second motor, rotating handle and activity template, set on the activity template
It is equipped in full impregnated spectral filter arranged up and down and cutoff filter；Second motor is sequentially connected by rotating handle
The activity template can make the geometric center and cutoff filter geometric center of the full impregnated spectral filter on activity template
Alternating is directed at the center of the through-hole.
7. a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one according to claim 6, feature exist
In: the behaviour area moved up and down for activity template is provided on the pedestal, the ipsilateral opening of the through-hole is in the behaviour area
Middle part, the bottom of the behaviour area offers an arc guide barrel, and the bottom of the activity template offers a transmission hole, described
Rotating handle one end connects second motor, and the other end is flexibly connected the transmission hole, the top of the arc guide barrel with
The lowermost linear distance is equal to the distance between two optical filter geometric centers；Activity template is moved to activity from the top of behaviour area
When the lower part in area, the center of through-hole is aligned to switch to from the cutoff filter geometric center with activity template and filter with full impregnated spectrum
The alignment of mating plate geometric center.
8. a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one according to claim 6, feature exist
In: it further include front cover, the front cover is fixedly connected with pedestal and is formed a cavity, the bis- filter disc switching mechanism settings of IR-cut
In the cavity, the bis- filter disc switching mechanisms of IR-cut further include mounting rack, and the second motor is fixed on the mounting rack one
On end, the inside bottom of the front cover is provided with the deck for fixing the mounting rack.
9. a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one according to claim 8, feature exist
In: the deck is internally provided with the bearing block being adapted with second motor position.
10. a kind of base mechanism for collecting High Precision Automatic focusing and IR-cut one according to claim 1-5,
It is characterized by: the bis- filter disc switching mechanisms of IR-cut are detachably secured on the pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920078602.7U CN209327654U (en) | 2019-01-17 | 2019-01-17 | A kind of base mechanism collecting High Precision Automatic focusing and IR-cut one |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920078602.7U CN209327654U (en) | 2019-01-17 | 2019-01-17 | A kind of base mechanism collecting High Precision Automatic focusing and IR-cut one |
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| Publication Number | Publication Date |
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| CN209327654U true CN209327654U (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920078602.7U Active CN209327654U (en) | 2019-01-17 | 2019-01-17 | A kind of base mechanism collecting High Precision Automatic focusing and IR-cut one |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597184A (en) * | 2019-01-17 | 2019-04-09 | 东莞市宇瞳光学科技股份有限公司 | A kind of base mechanism collecting High Precision Automatic focusing and IR-cut one |
| CN110519569A (en) * | 2019-09-05 | 2019-11-29 | 郑州维纳实验设备有限公司 | A kind of gradual change adjustment type automatically cleaning infrared surveillance equipment |
-
2019
- 2019-01-17 CN CN201920078602.7U patent/CN209327654U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597184A (en) * | 2019-01-17 | 2019-04-09 | 东莞市宇瞳光学科技股份有限公司 | A kind of base mechanism collecting High Precision Automatic focusing and IR-cut one |
| CN109597184B (en) * | 2019-01-17 | 2024-04-09 | 东莞市宇瞳光学科技股份有限公司 | Base mechanism integrating high-precision automatic focusing and IR-cut |
| CN110519569A (en) * | 2019-09-05 | 2019-11-29 | 郑州维纳实验设备有限公司 | A kind of gradual change adjustment type automatically cleaning infrared surveillance equipment |
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