CN208477271U - It is a kind of based on servo motor realize can continuous vari-focus laser illuminator - Google Patents
It is a kind of based on servo motor realize can continuous vari-focus laser illuminator Download PDFInfo
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- CN208477271U CN208477271U CN201721884361.2U CN201721884361U CN208477271U CN 208477271 U CN208477271 U CN 208477271U CN 201721884361 U CN201721884361 U CN 201721884361U CN 208477271 U CN208477271 U CN 208477271U
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- lens
- nut
- servo motor
- laser illuminator
- strip groove
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Abstract
The utility model disclose it is a kind of based on servo motor realize can continuous vari-focus laser illuminator, including the zoom lens, compensation lens and fixed lens being located on same optical axis, zoom lens and compensation lens constitute the zoom lens control device of laser illuminator, zoom lens and compensation lens are respectively connected with driving zoom lens and compensate lens and move to realize the driving device of zoom along optical axis, and the driving device is using the feed screw nut auxiliary structure being driven by motor；The strip groove vertical with optical axis is provided on workbench, zoom lens and compensation lens are slidably arranged in respectively in corresponding strip groove.The utility model carries out zoom using feed screw nut driving laser illuminator and improves the control precision of lens position instead of cam drive structure.
Description
Technical field
The utility model relates to a kind of laser illuminators, specifically, be it is a kind of based on servo motor realize can be continuous
The laser illuminator of zoom.
Background technique
In field of video monitoring, can be improved in the environment of dark using the mode of laser illuminator active illumination
Imaging effect, and further promote observed range.
Cam zoom system, pancreatic system objectively there is smudgy in some or some focal position luminaire hot spots and
The problem of can not being adjusted again by zoom means, because of the rigid design of cam curve, to the position with each fixed focal length value
For setting, the position of zoom group and compensation group is all strictly locked, so that zoom magnification is locked, can not be fine-tuned, and
It is big that cam highlights difficulty of processing.
Summary of the invention
In view of the drawbacks of the prior art, the utility model it is a kind of based on servo motor realize can continuous vari-focus laser shine
Funerary objects carries out zoom using feed screw nut driving laser illuminator and improves the control of lens position instead of cam drive structure
Precision processed.
In order to solve the technical problem, the technical solution adopted in the utility model is: one kind is realized based on servo motor
Can the laser illuminator of continuous vari-focus become including the zoom lens, compensation lens and fixed lens being located on same optical axis
Focus lens and compensation lens constitute the zoom lens control device of laser illuminator, and it is saturating that zoom lens and compensation lens are respectively connected with driving zoom
Mirror and compensation lens move to realize the driving device of zoom along optical axis, the driving device include servo motor, shaft coupling,
Nut, lead screw, workbench and guide rail, lead screw are connected by shaft coupling with the output shaft of servo motor, and nut is set in outside lead screw
Nut screw pair is formed with lead screw, workbench is connected on nut, and workbench both ends are provided with the hole passed through for guide rail, and guide rail passes through
The hole is slidably connected with workbench；The strip groove vertical with optical axis is provided on workbench, zoom lens and compensation lens are slided respectively
It is dynamic to be arranged in corresponding strip groove.
It is described in the utility model based on servo motor realize can continuous vari-focus laser illuminator, the nut includes solid
Determine nut and adjusting nut, spring is equipped between fixture nut and adjusting nut, fixture nut includes fixture nut ontology, setting
Annular convex platform in fixture nut one end and the mounting plate that is connected with fixture nut ontology, adjusting nut includes adjusting nut sheet
Body and the annular retaining ring that adjusting nut ontology one end is arranged in, on annular convex platform, another end cap is adjusting an end cap of spring
On nut, and withstand on the inside of annular retaining ring；Mounting plate is equipped with bolt hole, and bolt passes through bolt hole for fixture nut and workbench
It links together.
It is described in the utility model based on servo motor realize can continuous vari-focus laser illuminator, be provided with limit on mounting plate
Position slot, the upper end of annular retaining ring upwardly extends to form limited block, limited block be inserted into limiting slot and with its sliding contact.
It is described in the utility model based on servo motor realize can continuous vari-focus laser illuminator, limiting slot and limited block
Wavy bulge is equipped on the face being in contact.
It is described in the utility model based on servo motor realize can continuous vari-focus laser illuminator, zoom lens pass through four
Prism is slidably arranged in strip groove, and quadrangular, which is located at the side that strip groove is in contact and extends outward to form, picks up the ears, pick up the ears on open
There is top hole, jackscrew bolt passes through top hole and quadrangular is fixed in strip groove.
It is described in the utility model based on servo motor realize can continuous vari-focus laser illuminator, further include support plate,
Servo motor, lead screw, workbench are respectively provided on the supporting plate.
The utility model has the beneficial effects that the utility model is in the zooming procedure of laser illuminator, two servo motors
Cooperation operation, and drive two lens to run to specified position by nut screw.Due to during this, servo motor
The speed of service and the revolution that need to be run be it is arbitrarily variable, this ensures that the position of lens be not limited by cam curve
Limitation, improves the control precision of lens position.The silk constituted simultaneously using lead screw, fixture nut, spring and adjusting nut
Thick stick nut disappears clearance mechanism, eliminates the hysterisis error in transmission, lens are fixed in the strip groove of workbench, adjustable
The position of mirror makes the optical axis of zoom lens, compensation lens and fixed lens be located along the same line, and is equipped with puller bolt, prevents
Lens position shifts.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross-sectional view of nut portion；
Fig. 3 is the enlarged drawing for limiting slot part；
Fig. 4 is the enlarged drawing of bar shaped slot part；
In figure: 1, guide rail mounting plate, 2, support plate, 3, workbench, 4, guide rail, 5, lead screw, 6, servo motor, 7, servo electricity
Machine mounting plate, 8, lead screw mounting plate, 9, strip groove, 10, quadrangular, 11, zoom lens, 12, compensation lens, 13, fixed lens,
14, fixture nut ontology, 15, annular convex platform, 16, mounting plate, 17, spring, 18, adjusting nut ontology, 19, limiting slot, 20, limit
Position block, 21, annular retaining ring, 22, wavy bulge, 23, pick up the ears, 24, puller bolt, 25, nut.
Specific embodiment
As shown in Figure 1, it is a kind of based on servo motor realize can continuous vari-focus laser illuminator, including be located at same
Zoom lens 11, compensation lens 12 and fixed lens 13 on optical axis, zoom lens 11 and compensation lens 12 constitute laser lighting
The zoom lens control device of device, zoom lens 11 and compensation lens 12 be respectively connected with driving zoom lens and compensation lens along optical axis move from
And realize the driving device of zoom.The driving device includes servo motor 6, shaft coupling, nut 24, lead screw 5,3 and of workbench
Guide rail 4, lead screw 5 are connected by shaft coupling with the output shaft of servo motor 6, and nut 24 is set in outside lead screw 5 and lead screw 5 forms spiral shell
Master screw pair, workbench 3 are connected on nut 25, and 3 both ends of workbench are provided with the hole passed through for guide rail 4, guide rail 4 pass through the hole with
Workbench 3 is slidably connected；The strip groove 9 vertical with optical axis is provided on workbench 3, zoom lens 11 and compensation lens 12 are slided respectively
It is dynamic to be arranged in corresponding strip groove 9.
As shown in Fig. 2, the nut 25 includes fixture nut and adjusting nut, it is equipped between fixture nut and adjusting nut
Spring 17, fixture nut include fixture nut ontology 14, the annular convex platform 15 that fixture nut ontology one end is set and with it is solid
Determine the connected mounting plate 16 of nut body 14, adjusting nut includes adjusting nut ontology 18 and is arranged in adjusting nut ontology 18 1
The annular retaining ring 21 at end, on annular convex platform 15, another end cap is withstood on an end cap of spring 18 on adjusting nut ontology 18
21 inside of annular retaining ring；Mounting plate 16 is equipped with bolt hole, and fixture nut and workbench 3 are connected to one by bolt hole by bolt
It rises.The feed screw nut that lead screw 5, fixture nut, spring 17 and adjusting nut are constituted disappears clearance mechanism, eliminates returning in transmission
Journey error improves the control precision of lens position.The size of spring force should be greater than mobile resistance, generally can specific resistance it is big by one
Times or more.
As shown in Fig. 2, being provided with limiting slot 19 on mounting plate 16, the upper end of annular retaining ring 21 upwardly extends to form limited block
20, limited block 20 be inserted into limiting slot 19 in and with its sliding contact.
As shown in figure 3, being equipped with the wavy bulge 22 being meshed on the face that limiting slot 19 is in contact with limited block 20, limit
Position slot can prevent the adjusting nut when lead screw rotates from lead screw being followed to carry out circular motion, and wavy bulge has certain limit to make
With adjusting nut play can be prevented.Wavy bulge 22 is circular arc protrusion, and limited block 20 still can be in limiting slot 19
Sliding, thus the size of adjustment spring elastic force.
In the present embodiment, zoom lens 11 are slidably arranged in strip groove 9 by quadrangular 10, as shown in figure 4, quadrangular
10, which are located at the side that is in contact of strip groove 9, extends outward to form and picks up the ears 23, picks up the ears to be provided with top hole on 23, jackscrew bolt 24 passes through
Quadrangular 10 is fixed in strip groove 9 by top hole.When detection discovery lens optical axis not point-blank when, it is adjustable
Position of the quadrangular 10 in strip groove 9 after lens position adjustment is good, passes through puller bolt to adjust the position of lens
24 fix the position of lens, prevent lens axis from shaking.
In the present embodiment, compensation lens 12 are slidably arranged in strip groove 9 by quadrangular 10, and quadrangular 10 is not in bar shaped
The side that slot 9 is in contact, which extends outward to form, picks up the ears 23, picks up the ears to be provided with top hole on 23, jackscrew bolt 24 passes through top hole for four
Prism is fixed in strip groove.
As shown in Figure 1, further including support plate 2, servo motor 6 is mounted on support in the class by servo motor mounting plate 7, silk
Thick stick 5 is mounted on support in the class by lead screw mounting plate 8, and guide rail 4 is mounted in support plate 2 by guide rail mounting plate 1.Fixed lens
13 are mounted on workbench 3, and fixed lens 13 are mounted in support plate 2 by guide rail 4, guide rail mounting plate 1.
The utility model is in the zooming procedure of laser illuminator, two servo motor cooperation operations, and passes through nut
Lead screw drives two lens to run to specified position.Due to during this, the speed of service of servo motor and what need to be run turn
Number be it is arbitrarily variable, this ensures that the position of lens not in the limitation for being limited by cam curve, improves lens position
Control precision.Disappeared clearance mechanism using the feed screw nut that lead screw, fixture nut, spring and adjusting nut are constituted simultaneously, is disappeared
In addition to the hysterisis error in transmission, lens are fixed in the strip groove of workbench, the position of adjustable lens make zoom lens,
The optical axis of compensation lens and fixed lens is located along the same line, and is equipped with puller bolt, prevents lens position from shifting.
Described above is only the basic principle and preferred embodiment of the utility model, and those skilled in the art are according to this reality
With the novel improvement and replacement made, belong to the protection scope of the utility model.
Claims (7)
1. it is a kind of based on servo motor realize can continuous vari-focus laser illuminator, it is characterised in that: including be located at same
Zoom lens, compensation lens and fixed lens on optical axis, zoom lens and compensation lens constitute the zoom dress of laser illuminator
It sets, zoom lens and compensation lens are respectively connected with driving zoom lens and compensate lens and move to realize the drive of zoom along optical axis
Dynamic device, the driving device includes servo motor, shaft coupling, nut, lead screw, workbench and guide rail, and lead screw passes through shaft coupling
It is connected with the output shaft of servo motor, nut is set in outside lead screw and lead screw forms nut screw pair, and workbench is connected to nut
On, workbench both ends are provided with the hole passed through for guide rail, and guide rail passes through the hole and is slidably connected with workbench；It is provided on workbench and light
The vertical strip groove of axis, zoom lens and compensation lens are slidably arranged in respectively in corresponding strip groove.
2. it is according to claim 1 based on servo motor realize can continuous vari-focus laser illuminator, it is characterised in that:
The nut includes fixture nut and adjusting nut, and spring is equipped between fixture nut and adjusting nut, and fixture nut includes solid
The mounting plate determined nut body, the annular convex platform of fixture nut one end is arranged in and is connected with fixture nut ontology adjusts spiral shell
Main bag includes adjusting nut ontology and the annular retaining ring that adjusting nut ontology one end is arranged in, and an end cap of spring is in annular convex platform
On, another end cap is withstood on the inside of annular retaining ring on adjusting nut；Mounting plate is equipped with bolt hole, and bolt passes through bolt hole
Fixture nut and workbench are linked together.
3. it is according to claim 2 based on servo motor realize can continuous vari-focus laser illuminator, it is characterised in that:
Limiting slot is provided on mounting plate, the upper end of annular retaining ring upwardly extends to form limited block, limited block be inserted into limiting slot in and and its
Sliding contact.
4. it is according to claim 3 based on servo motor realize can continuous vari-focus laser illuminator, it is characterised in that:
Wavy bulge is equipped on the face that limiting slot is in contact with limited block.
5. it is according to claim 1 based on servo motor realize can continuous vari-focus laser illuminator, it is characterised in that:
Zoom lens are slidably arranged in strip groove by quadrangular, and quadrangular is not extended outward to form in the side that strip groove is in contact
Pick up the ears, pick up the ears on be provided with top hole, jackscrew bolt passes through top hole and quadrangular is fixed in strip groove.
6. it is according to claim 1 based on servo motor realize can continuous vari-focus laser illuminator, it is characterised in that:
Compensation lens are slidably arranged in strip groove by quadrangular, and quadrangular is located at the side that strip groove is in contact and extends outward to form
Pick up the ears, pick up the ears on be provided with top hole, jackscrew bolt passes through top hole and quadrangular is fixed in strip groove.
7. it is according to claim 2 based on servo motor realize can continuous vari-focus laser illuminator, it is characterised in that:
It further include support plate, servo motor, lead screw, workbench are respectively provided on the supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721884361.2U CN208477271U (en) | 2017-12-29 | 2017-12-29 | It is a kind of based on servo motor realize can continuous vari-focus laser illuminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721884361.2U CN208477271U (en) | 2017-12-29 | 2017-12-29 | It is a kind of based on servo motor realize can continuous vari-focus laser illuminator |
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| Publication Number | Publication Date |
|---|---|
| CN208477271U true CN208477271U (en) | 2019-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201721884361.2U Active CN208477271U (en) | 2017-12-29 | 2017-12-29 | It is a kind of based on servo motor realize can continuous vari-focus laser illuminator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114559167A (en) * | 2022-02-28 | 2022-05-31 | 南京理工大学 | Laser cutting head zooms based on inverse piezoelectric effect adjusts |
| CN114967029A (en) * | 2022-04-22 | 2022-08-30 | 歌尔光学科技有限公司 | Projection lens, projection ray apparatus and virtual reality equipment |
| CN117687168A (en) * | 2024-02-01 | 2024-03-12 | 吉林省巨程智造光电技术有限公司 | Aspherical lens device for space signal transmission |
-
2017
- 2017-12-29 CN CN201721884361.2U patent/CN208477271U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114559167A (en) * | 2022-02-28 | 2022-05-31 | 南京理工大学 | Laser cutting head zooms based on inverse piezoelectric effect adjusts |
| CN114967029A (en) * | 2022-04-22 | 2022-08-30 | 歌尔光学科技有限公司 | Projection lens, projection ray apparatus and virtual reality equipment |
| CN117687168A (en) * | 2024-02-01 | 2024-03-12 | 吉林省巨程智造光电技术有限公司 | Aspherical lens device for space signal transmission |
| CN117687168B (en) * | 2024-02-01 | 2024-04-19 | 吉林省巨程智造光电技术有限公司 | Aspherical lens device for space signal transmission |
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