CN108108066A - For generating the method for the infrared light curtain parallel to screen - Google Patents
For generating the method for the infrared light curtain parallel to screen Download PDFInfo
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- CN108108066A CN108108066A CN201711361077.1A CN201711361077A CN108108066A CN 108108066 A CN108108066 A CN 108108066A CN 201711361077 A CN201711361077 A CN 201711361077A CN 108108066 A CN108108066 A CN 108108066A
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- screen
- infra
- laser diode
- red laser
- parallel
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a kind of for generating the method for the infrared light curtain parallel to screen, the described method includes：At least two infra-red laser diodes are placed on screen, it is made to emit infrared beam；Reflection platform is arranged in the exit direction of light beam；Target is arranged between infra-red laser diode and reflection platform, multiple laser beam perforations are provided on target, laser beam perforation and reflection platform are arranged so that：The light beam parallel to screen that infra-red laser diode is sent can sequentially pass through the laser beam perforation on target, finally form speck on reflection platform；It is detected with detection sensor and whether there is speck on reflection platform, when there is the speck different from the number of infra-red laser diode, implement the adjusting to infra-red laser diode in each dimension, the number for making the speck formed on finally reflection platform is identical with the number of infra-red laser diode.Contact identification software is depended on unduly the invention avoids detection process, reduces corresponding cost.
Description
Technical field
The present invention relates to technical field of intelligent interaction, and in particular to a kind of to be used for generation parallel to the infrared light curtain of screen
Method.
Background technology
In the screen touch-control man-machine interactive system based on infrared light curtain, existing infrared light curtain is emitted by multiple lasers
Fan-shaped infrared surface be formed by stacking.Since infrared light is black light, so judging light beam and screen that multiple lasers are sent
It is whether parallel difficult.
Current main method is to act on finger and touch-control is carried out on screen, positioned at the red of screen front (or below)
Outer camera can take finger contact image, judge whether light beam puts down with screen according to the area of finger contact in image
Row, such as：When finger contact area is smaller in finger contact image, judge that light beam is parallel with screen, when finger contact area
Significantly greater than finger area when, illustrate that light beam may be irradiated to the places such as the back of the hand, that is, light beam is not parallel with screen.This inspection
The accuracy rate and uniformity of survey method all need to be further improved.
The content of the invention
For infrared light curtain of the prior art be not easy to be detected whether parallel to screen situation, the application propose by
Multiple infra-red laser diode transmitting infrared beams being placed on screen form infrared light curtain and provide a kind of novel generation
Parallel to the method for the infrared light curtain of screen, the described method includes：
At least two infra-red laser diodes are placed on screen, it is made to emit infrared beam；
Reflection platform is arranged in the exit direction of light beam；
Target is arranged between the infra-red laser diode and reflection platform, multiple laser are provided on the target
Perforation, the laser beam perforation and the reflection platform are arranged so that：The light parallel to screen that infra-red laser diode is sent
Beam can sequentially pass through the laser beam perforation on target, finally form speck on the reflection platform；
It whether there is speck on the detection sensor detection reflection platform, when in the presence of the number with infra-red laser diode
During the different speck of mesh, implement the adjusting in each dimension to infra-red laser diode, make what is formed on finally reflection platform
The number of speck is identical with the number of infra-red laser diode.
In some embodiments, it is included in the exit direction of light beam and reflection platform is set on the screen.
In some embodiments, it is included in the exit direction of light beam and reflection platform is set outside screen.
In some embodiments, the multiple laser beam perforation is column, and the axis direction of the column laser beam perforation is with putting down
Row is identical in the beam exit direction of screen.
In some embodiments, the interval between multiple laser beam perforations can be adjusted.
In some embodiments, the distance between multiple laser beam perforations and described screen can be adjusted.
In some embodiments, target is affixed on the surface of screen or target is removably solid with adhesive material
Determine to screen.
In some embodiments, the detection sensor is infrared camera.
In some embodiments, the screen is to face screen or curve screens directly.
In some embodiments, reflecting platform includes paper, lath or infrared backlight plate.
The method provided in an embodiment of the present invention for being used to generate the infrared light curtain parallel to screen, compared with the prior art
Speech, the prior art depend on video camera to the capture of the reflected light at finger contact, related software to thinking design capture
The contact extraction of image information and identification, entire detection process are related to the cooperation of hardware and software and the two, therefore, testing result
The influence factor being subject to is larger.And the proposition of the present invention then preferably solves the problems, such as these, avoids detection process to contact
Identification software is depended on unduly, reduces corresponding cost, and entire detection process simple, intuitive is on the other hand, novel with one group
Low cost mode realize a kind of infrared light curtain parallel to screen.
Description of the drawings
Fig. 1 is the signal provided by one embodiment of the present invention for generation parallel to the device of the infrared light curtain of screen
Figure.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figure 1, Fig. 1 is the dress provided by one embodiment of the present invention for generation parallel to the infrared light curtain of screen
The schematic diagram put.
Infra-red laser diode 101,102,103,104..., n are shown, these infra-red laser diodes can be set in Fig. 1
It puts on screen 21, such as the top of screen or the edge of screen, each infra-red laser diode send infrared beam, Duo Gehong
The light beam that outer laser diode is sent forms light curtain on the screen.It, can be right according to the needs of light curtain thickness evenness etc.
The light beam that multiple infra-red laser diodes are sent is collimated and focused on.Collimated the light beam that infra-red laser diode is sent
It is the common technology of those skilled in the art with focusing, details are not described herein.For clarity, only sparsely shown in figure
Infra-red laser diode in actual conditions, according to the needs of touch accuracy, can set more intensive two pole of infrared laser
Pipe.
Device for generating parallel to the infrared light curtain of screen includes：At least two infra-red laser diodes 101,102,
103、104...、n；Adjustable installed part (not shown), the adjustable installed part can be implemented to swash to infrared according to actual needs
Adjusting of the optical diode in each dimension, including infra-red laser diode displacement in all directions and angle can be adjusted
Degree；Platform 41 is reflected, is placed in the exit direction of light beam；Target 31, is placed in the infra-red laser diode and reflection is flat
Between platform, multiple laser beam perforations 311,312 ... m are provided on the target, the laser beam perforation and reflection platform are arranged to
So that：The light beam parallel to screen that infra-red laser diode is sent can sequentially pass through the laser beam perforation on target, finally exist
Speck is formed on the reflection platform；Detection sensor 51 is used to detecting on the reflection platform with the presence or absence of speck, when depositing
In the speck different from the number of infra-red laser diode, implement the adjusting in each dimension to infra-red laser diode,
The number for making the speck formed on finally reflection platform is identical with the number of infra-red laser diode.
It will elaborate below to more details.
As shown in Figure 1, target 31 is installed on the surface of screen 21, be provided on target 31 multiple laser beam perforations 311,
312nd ..., m, wherein, m is integer more than 1, and m is greater than or equal to the number of infra-red laser diode, multiple on target 31
Laser beam perforation 311,312 ..., the distance of m to screen 21 it is consistent, when the light beam is through multiple laser beam perforations on target 31
311st, 312 ..., during m, the speck that can be detected sensor 51 and detect is formed on the reflection platform 41.
Reflection platform 41 be arranged on beam exit direction, can be located at screen 21 edge or positioned at screen 21 it
Outside.In some embodiments of the invention, it can be paper, lath or backlight etc. to reflect platform 41.
In the present embodiment, target 31 can be pasted on the surface of screen 21 by adhesive material, such as：Target 31 can lead to
Cross the surface that glue or double faced adhesive tape are detachably secured to screen 21 together in 21 surface of screen or by various connectors.At this
Invent in some embodiments, multiple laser beam perforations 311,312 ..., the section of m can be cylindric, polygon-shaped, oval
Shape etc. can specifically be determined according to the cross sectional shape of the laser beam of outgoing, multiple laser beam perforations 311,312 ..., the axis side of m
To identical with the beam exit direction parallel to screen, multiple laser beam perforations 311,312 ..., thickness of the m along beam exit direction
Degree needs to be more than predetermined threshold value, which can empirically be worth to set, such as：It can be by laser beam perforation along beam exit
The thickness in direction is set greater than 1cm etc., the thickness in laser beam perforation along beam exit direction it is more big can guarantee through light beam
Parallel to screen.The multiple laser beam perforation 311,312 ..., the number of m can be more than and/or equal to every group laser diode
The number of middle laser diode, multiple laser beam perforations 311,312 ..., the distance between m can set in advance, also may be used
With according to multiple laser diodes 101,102,103 ..., the distance between n is adjusted.Such as：For one group of two pole of laser
It, can be according to several laser two of front when the outgoing beam of several laser diodes of front is parallel to screen for pipe
The distance between pole pipe adjusts the distance between laser beam perforation so that the distance between multiple laser beam perforations and this group of laser two
The distance between multiple laser diodes are identical in pole pipe.In another example in the case where being related to multigroup infra-red laser diode, group
Infra-red laser diode between group be spaced arrangement or it is front and rear on laser emitting direction placed in two rows of, heel row
The light beam that sends of infra-red laser diode be emitted from the gap between front-seat infra-red laser diode, difference group laser two
The distance between adjacent laser diode may be different in pole pipe, therefore, test the light sent of previous group laser diode
During the light beam that next group of laser diode of beam and then test is sent, by adaptively adjusting between multiple laser beam perforations
Distance enables to adapt to the distance between next group of laser diode, equal when being debugged so as to different groups of laser diodes
An identical target can be used, improve the flexibility of test, and resource can be saved.
Detection sensor 51 is for detecting the speck formed on reflection platform 41 by black light, in some embodiments,
Detection sensor 51 can be infrared camera, if the light beam that sends of some infra-red laser diode shape on reflection platform 41
Into speck, then illustrate that light beam has passed through the laser beam perforation on target 31, the light beam which sends is parallel to screen
Curtain on the contrary, if the light beam that sends of some infra-red laser diode does not form speck on platform 41 is reflected, illustrates that this is red
The light beam that outer laser diode is sent be not parallel to screen 21, it is necessary to the exit direction of the light beam of the infra-red laser diode into
Row is adjusted.To realize the adjusting, infra-red laser diode can be installed on an adjustable installed part, the adjustable installation
Part can realize the adjusting to infra-red laser diode in each dimension according to actual needs, including that can adjust infrared laser
Diode displacement in all directions and angle, the corresponding adjustable installed part of each infra-red laser diode can be fixed on
On one common pedestal.When being related to multigroup infra-red laser diode, every group of infra-red laser diode can be fixed on difference
Pedestal on, so as to convenient after one group of infra-red laser diode has been adjusted, as needed by this group of infra-red laser diode shifting
It walks, and moves into another group of infra-red laser diode.In view of the adjustable installed part and its regulative mode belong to optical path adjusting mistake
Device is commonly used in journey, therefore, is not detailed herein.
In some embodiments of the invention, the screen can be the screen of arbitrary material and shape, such as：Liquid crystal,
LED, DLP projection screen etc., the screen can face screen or curve screens directly.When screen is curve screens, each
Infra-red laser diode is neatly arranged in the top of screen along curved surface, correspondingly, target and reflection platform also edge
Curved surface to be arranged on screen.The light beam parallel to screen being emitted from infra-red laser diode again passes through swashing on target
Light is perforated, and forms speck on reflection platform, just like described in earlier in respect of figures 1, details are not described herein again.So as to ensure curved surface
The light curtain even density of screen surface, meanwhile, using the infrared light provided in an embodiment of the present invention for generating parallel to screen
The method of curtain can ensure light curtain parallel to screen, and when avoiding the infrared light curtain from being not parallel to screen, mistake is generated when user touches
Difference touches accuracy and sensitivity so as to improve.
Another embodiment of the present invention provides infrared beam parallel to the detection method of screen, and the infrared light curtain is by multiple
The infra-red laser diode transmitting infrared beam being placed on screen is formed, as previously described；The described method includes：
S11：At least two infra-red laser diodes are placed on screen, it is made to emit infrared beam.
S12：Reflection platform is arranged to the exit direction of light beam.
Such as：Reflection platform can be arranged at beam exit direction, on screen, such as positioned at screen edge；Or
Reflection platform can be arranged on beam exit direction, and outside screen.In some embodiments of the invention, platform is reflected
Can be paper, backlight or lath etc..
S13：Target is arranged between the infra-red laser diode and reflection platform；It is provided on the target multiple
Laser beam perforation, the laser beam perforation and reflection platform are arranged so that：The light parallel to screen that infra-red laser diode is sent
Beam can sequentially pass through the laser beam perforation on target, finally form speck on the reflection platform.
S14：It whether there is speck on the detection sensor detection reflection platform, when presence and infra-red laser diode
Number different speck when, implement the adjusting in each dimension to infra-red laser diode, make finally to reflect shape on platform
Into speck number it is identical with the number of infra-red laser diode.
Component and connection relation therein involved by each steps of more than S11-S14 may be referred to front and done around Fig. 1
Description.
For example, can by target 31 multiple laser beam perforations 311,312 ..., the distance of m to screen 21 be arranged to one
Cause, when the light beam through on target 31 multiple laser beam perforations 311,312 ..., m when, formed on the reflection platform 41
The speck that can be taken by thermal camera.Can will reflection platform 41 be arranged on beam exit direction, herein under the premise of,
Reflection platform can be for example arranged at the edge of screen 21 or be arranged at outside screen 21.In some implementations of the present invention
In example, reflection platform 41 can be paper, lath or infrared light backlight etc., and the presence of the backlight is being observed convenient for human eye
The region for substantially needing to observe quickly is navigated to during thermal camera, the light intensity of backlight can be very weak, only provides an observation
Guide.
Target 31 can be pasted on the surface of screen 21 with adhesive material or be removably fixed to screen.
The respective shapes of each laser beam perforation can be designed according to the cross sectional shape of the laser beam of outgoing and make target
Multiple laser beam perforations 311 on 31,312 ..., the axis direction of m it is identical with the beam exit direction parallel to screen, along light
The thickness of beam-emergence direction needs to meet certain preset value, which can empirically be worth to obtain, to ensure light beam energy
Enough parallel passes through laser beam perforation.Can make multiple laser beam perforations 311 on the target 31,312 ..., the number of m can be with
It is more than and/or the number of equal to every group infra-red laser diode mid-infrared laser diode, multiple laser beam perforations on target 31
311st, 312 ..., the distance between m can be set in advance, can also according to multiple infra-red laser diodes 101,
102nd, 103 ..., the distance between n is adjusted.For example, in the case where being related to multigroup infra-red laser diode, group and group
Between infra-red laser diode be spaced arrangement or it is front and rear on laser emitting direction placed in two rows of, heel row it is red
The light beam that outer laser diode is sent is emitted from the gap between front-seat infra-red laser diode, difference group infrared laser two
The distance between adjacent infra-red laser diode may be different in pole pipe, therefore, test previous group infra-red laser diode hair
It, can be by adaptively adjusting target 31 when testing the light beam that next group of infra-red laser diode is sent after the light beam gone out
The distance between upper multiple laser beam perforations, enable to adapt to the distance between next group of infra-red laser diode, so that
Foregoing target can be used when being debugged to different groups of infra-red laser diodes, improve the flexibility of test, and can save
Resource-saving.
Detection sensor 51 can reflect the speck formed on platform 41 by black light with captured in real-time, if some is infrared
The light beam that laser diode is sent forms speck on reflection platform, then illustrates that light beam has passed through the laser beam perforation on target 31,
The light beam that the infra-red laser diode is sent is parallel to screen；On the contrary, if the light beam that some infra-red laser diode is sent does not have
Have and form speck on reflection platform 41, then illustrate light beam that the infra-red laser diode is sent be not parallel to screen 21, it is necessary to
The beam exit direction of the infra-red laser diode is adjusted.To realize the adjusting, infra-red laser diode can pacify
Loaded on an adjustable installed part, which can realize to infra-red laser diode each according to actual needs
Adjusting in a dimension, including infra-red laser diode displacement in all directions and angle can be adjusted；It is each infrared sharp
The corresponding adjustable installed part of optical diode can be fixed on a common pedestal.When being related to multigroup infra-red laser diode
When, every group of infra-red laser diode can be fixed on different pedestals, and one group of two pole of infrared laser is being adjusted so as to convenient
Guan Hou as needed removes this group of infra-red laser diode, and moves into another group of infra-red laser diode.It is in view of described adjustable
Section installed part and its regulative mode belong to common device during optical path adjusting, therefore, are not detailed herein.
Although it should be noted that the present embodiment with step S11 to step S14 to provided by the present invention for generate it is parallel
It is illustrated in the method for the infrared light curtain of screen, but not because above-mentioned steps limit the method provided by the invention
It is fixed, that is to say, that in some cases, the action recorded in detail in the claims or step can be according to different from the present embodiment
In order perform and still can realize desired result.In some embodiments, multitasking and parallel place
It manages also possible or it may be advantageous.
The prior art mentioned by the application introductory song depends on video camera catching to the reflected light at finger contact
It obtains, related software extracts and identify that entire detection process is related to hardware and software to the contact for the image information that video camera captures
And the cooperation of the two, therefore, the influence factor that testing result is subject to is larger.And the proposition of the present invention then preferably solves these
Problem avoids detection process and contact identification software is depended on unduly, reduces corresponding cost.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection domain subject to.
Claims (10)
1. it is a kind of for generating the method for the infrared light curtain parallel to screen, the described method includes：
At least two infra-red laser diodes are placed on screen, it is made to emit infrared beam；
Reflection platform is arranged in the exit direction of light beam；
Target is arranged between the infra-red laser diode and reflection platform, multiple laser are provided on the target and are worn
Hole, the laser beam perforation and the reflection platform are arranged so that：The light beam parallel to screen that infra-red laser diode is sent
The laser beam perforation on target can be sequentially passed through, finally forms speck on the reflection platform；
With on the detection sensor detection reflection platform with the presence or absence of speck, when existing with the number of infra-red laser diode not
With speck when, implement the adjusting in each dimension to infra-red laser diode, make the speck that is formed on finally reflection platform
Number it is identical with the number of infra-red laser diode.
2. according to claim 1 for generation parallel to the method for the infrared light curtain of screen, which is characterized in that be included in light
Reflection platform is set on the screen in the exit direction of beam.
3. the method according to claim 1 for being used to generate the infrared light curtain parallel to screen, which is characterized in that be included in
Reflection platform is set in the exit direction of light beam outside screen.
4. the method according to claim 3 for being used to generate the infrared light curtain parallel to screen, which is characterized in that described more
A laser beam perforation is column, and the axis direction of the column laser beam perforation is identical with the exit direction of the light beam parallel to screen.
5. the method for being used to generate the infrared light curtain parallel to screen according to claim 1-4 any one, feature
It is, the interval between multiple laser beam perforations can be adjusted.
6. the method for being used to generate the infrared light curtain parallel to screen according to claim 1-4 any one, feature
It is, the distance between multiple laser beam perforations and described screen can be adjusted.
7. the method for being used to generate the infrared light curtain parallel to screen according to claim 1-4 any one, feature
It is, target is affixed on the surface of screen with adhesive material or target is removably fixed to screen.
8. the method for being used to generate the infrared light curtain parallel to screen according to claim 1-4 any one, feature
It is, the detection sensor is infrared camera.
9. the method for being used to generate the infrared light curtain parallel to screen according to claim 1-4 any one, feature
It is, the screen is to face screen or curve screens directly.
10. the method for being used to generate the infrared light curtain parallel to screen according to claim 1-4 any one, feature
It is, reflection platform includes paper, lath or infrared backlight plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361077.1A CN108108066B (en) | 2017-12-18 | 2017-12-18 | Method for generating the infrared light curtain for being parallel to screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361077.1A CN108108066B (en) | 2017-12-18 | 2017-12-18 | Method for generating the infrared light curtain for being parallel to screen |
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| CN108108066A true CN108108066A (en) | 2018-06-01 |
| CN108108066B CN108108066B (en) | 2018-11-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2682371Y (en) * | 2004-03-17 | 2005-03-02 | 中国人民解放军63856部队 | Combined parallel laser light curtain target |
| US20150103051A1 (en) * | 2013-10-10 | 2015-04-16 | Qualcomm Incorporated | Infrared touch and hover system using time-sequential measurements |
| CN106370130A (en) * | 2016-08-17 | 2017-02-01 | 苏州苍龙电子科技有限公司 | Detection device and method for the parallelism of infrared light curtain and large screen |
| CN107121265A (en) * | 2017-05-10 | 2017-09-01 | 深圳市惠富康光通信有限公司 | The detection device and control method of a kind of C lens assembly technologies |
| CN206757077U (en) * | 2017-03-17 | 2017-12-15 | 上海葛世工业自动化有限公司 | The test of safe light curtain and adjusting apparatus and security system |
-
2017
- 2017-12-18 CN CN201711361077.1A patent/CN108108066B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2682371Y (en) * | 2004-03-17 | 2005-03-02 | 中国人民解放军63856部队 | Combined parallel laser light curtain target |
| US20150103051A1 (en) * | 2013-10-10 | 2015-04-16 | Qualcomm Incorporated | Infrared touch and hover system using time-sequential measurements |
| CN106370130A (en) * | 2016-08-17 | 2017-02-01 | 苏州苍龙电子科技有限公司 | Detection device and method for the parallelism of infrared light curtain and large screen |
| CN206757077U (en) * | 2017-03-17 | 2017-12-15 | 上海葛世工业自动化有限公司 | The test of safe light curtain and adjusting apparatus and security system |
| CN107121265A (en) * | 2017-05-10 | 2017-09-01 | 深圳市惠富康光通信有限公司 | The detection device and control method of a kind of C lens assembly technologies |
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| Publication number | Publication date |
|---|---|
| CN108108066B (en) | 2018-11-09 |
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