CN108110607A - Regulating part, the method for detecting infrared light curtain, the method for generating infrared light curtain - Google Patents
Regulating part, the method for detecting infrared light curtain, the method for generating infrared light curtain Download PDFInfo
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- CN108110607A CN108110607A CN201711362395.XA CN201711362395A CN108110607A CN 108110607 A CN108110607 A CN 108110607A CN 201711362395 A CN201711362395 A CN 201711362395A CN 108110607 A CN108110607 A CN 108110607A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0235—Method for mounting laser chips
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0233—Mounting configuration of laser chips
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
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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
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- Engineering & Computer Science (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a kind of regulating part, the method for detection infrared light curtain, the method for generation infrared light curtain, the regulating part includes：Mounting bracket, including mounting portion and support base, mounting portion includes hole of perforating and fasten, it fastens hole and perforation is mutually perpendicular to, and it fastens hole and is connected with perforation, adjusting through hole is provided in support base, fastens and fastener is equipped in hole, for infra-red laser diode to be fixed on along beam exit direction in perforation；Adjustment means are movably connected in and adjust between through hole and mounting base, for adjusting the shooting angle of light beam；Mounting base is provided with adjusting slot, and adjustment means, which are arranged at, to be adjusted between through hole and the adjusting slot.Contact identification software is depended on unduly the invention avoids detection process, reduces corresponding cost, and entire detection process simple, intuitive.
Description
Technical field
The present invention relates to technical field of intelligent interaction, and in particular to one kind is used to adjust infra-red laser diode light beam pitching
The regulating part of angle, for detect infrared light curtain whether parallel to screen detection method and for generate parallel to the red of screen
The method of outer light curtain.
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 screen front (or
Infrared camera below) can take finger contact image, according to the area of finger contact in image come judge light beam with
Whether screen is parallel, such as：When finger contact area is smaller in finger contact image, judges that light beam is parallel with screen, work as hand
When finger contact area is significantly greater than finger area, illustrate that light beam may be irradiated to the places such as the back of the hand, that is, light beam is uneven with screen
Row.The accuracy rate and uniformity of this detection 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 detection
Method come detect this infrared light curtain whether parallel to screen and provide it is a kind of it is novel generate parallel to screen infrared light
The method of curtain.
One aspect of the present invention provides a kind of regulating part for being used to adjust infra-red laser diode light beam pitch angle, the tune
Section part includes：
Mounting bracket, including mounting portion and support base, the mounting portion includes hole of perforating and fasten, the fastening hole and institute
Perforation is stated to be mutually perpendicular to, and the fastening hole is connected with the perforation, and adjusting through hole is provided in the support base, it is described solid
Fastener is equipped in tieholen, for the infra-red laser diode to be fixed on along beam exit direction in the perforation；
Adjustment means are movably connected between the adjusting through hole and mounting base, for adjusting the outgoing of the light beam
Angle；
Mounting base is provided with adjusting slot, and the adjustment means are arranged at the adjusting through hole and described adjust is inserted
Between slot.
In some embodiments, the support base is rectangle, and a tune is respectively equipped on four angles of the support base
Save through hole.
In some embodiments, the adjustment means include screw and elastic component, and the elastic component is set in described
In screw, through the adjusting through hole, the other end of the screw is assigned into the adjusting slot for one end of the screw；Institute
Elastic component is stated as spring or rubber cushion.
Another aspect of the present invention provide it is a kind of for detect infrared light curtain whether parallel to screen detection method, it is described red
The infra-red laser diode transmitting infrared beam that outer light curtain is placed in by least two on screen is formed, the described method includes：
Reflection platform is placed in the exit direction of light beam；
First target and the second target are arranged between the infra-red laser diode and reflection platform；First target
Laser beam perforation of the number more than or equal to the number of infra-red laser diode is both provided on mark and the second target, the laser is worn
Hole 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 first target
The corresponding laser beam perforation on laser beam perforation and the second target put on finally forms speck on the reflection platform；
It whether there is speck on the infrared camera detection reflection platform, when in the presence of the number with infra-red laser diode
During the different speck of mesh, implement the adjusting to infra-red laser diode in each dimension with regulating part, until infrared laser two
During the same number of speck of pole pipe, judge light beam that the infra-red laser diode is sent parallel to the screen.
In some embodiments, the described method includes in platform is reflected in setting on the screen in the exit direction of light beam；Or
Person
It is included in the exit direction of light beam outside screen and reflection platform is set.
In some embodiments, the line of the laser beam perforation laser beam perforation corresponding on the second target on the first target with
It is identical parallel to the exit direction of the light beam of screen；Interval between laser beam perforation can be adjusted；By the first target and the second target
Mark is pasted on the surface of screen with adhesive material；Alternatively, the first target and the second target are removably fixed to screen.
In some embodiments, the described method includes the requirement according to depth of parallelism height, to adjust the first target and second
The distance between target；And including the requirement according to depth of parallelism height, swash to adjust the first target and the second target to infrared
The distance of optical diode.
In some embodiments, the regulating part includes described for adjusting infra-red laser diode light beam pitch angle
Regulating part.
Another aspect of the present invention provides a kind of method for generation parallel to the infrared light curtain of screen, the method bag
It 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；
First target and the second target are arranged between the infra-red laser diode and reflection platform；First target
Laser beam perforation of the number more than or equal to the number of infra-red laser diode is both provided on mark and the second target, the laser is worn
Hole 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 first target
The corresponding laser beam perforation on laser beam perforation and the second target put on finally forms speck on the reflection platform；
It whether there is speck on the infrared camera detection reflection platform, when in the presence of the number with infra-red laser diode
During the different speck of mesh, implement the adjusting to infra-red laser diode in each dimension with regulating part, until infrared laser two
During the same number of speck of pole pipe, judge light beam that the infra-red laser diode is sent parallel to the screen.
In some embodiments, the regulating part to be described for adjusting infra-red laser diode light beam pitch angle
Regulating part.
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, and entire detection process letter
It is single directly perceived.
Description of the drawings
Fig. 1 is the regulating part of adjusting infra-red laser diode outgoing beam pitch angle provided by one embodiment of the present invention
Schematic diagram.
Fig. 2 be another embodiment of the present invention provide for detect infrared light curtain whether parallel to screen detection device
Schematic diagram.
Fig. 3 be another of the invention embodiment provide for detect infrared light curtain whether parallel to screen detection method
Flow chart.
Fig. 4 is the flow for generation parallel to the method for the infrared light curtain of screen that another embodiment of the invention provides
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.
It just bows as shown in Figure 1, Fig. 1 is adjusting infra-red laser diode provided by one embodiment of the present invention by outgoing beam
The schematic diagram of the regulating part of elevation angle degree.
Show that the regulating part includes in Fig. 1：Mounting bracket 11, adjustment means 12 and mounting base 13.
Mounting bracket 11 includes mounting portion 111 and support base 112, mounting portion 111 and support base 112 can be one into
The structure of type, mounting portion 111 are located on support base 112, alternatively, mounting portion 111 and support base 112 can also be combinations
Structure together, such as：Mounting portion 111 and support base 112 snap together or are bonded together.
Wherein, mounting portion 111 includes perforation 1111 and fastens hole 1112, and it is mutual to fasten hole 1112 and the direction of perforation 1111
Vertically, and fastening hole 1112 is connected with perforation 1111, such as：Mounting portion 111 be rectangular parallelepiped structure, perforate 1111 one end position
In on one of face A of rectangular parallelepiped structure, the other end of perforation is located on the face B opposite with face A of rectangular parallelepiped structure, also
To reveal hole to have penetrated through two opposite faces of rectangular parallelepiped structure, fasten hole 1112 one end be arranged at it is adjacent simultaneously with face A knead doughs B
Face C on, the other end is arranged at perforation 1111.In some instances, the number for fastening hole 1112 can be 2, fasten
Fastener 1113 is equipped in hole 1112, for infra-red laser diode body to be fixed in perforation 1111, wherein, fastener
1113 can be screw or other fasteners, such as：Bolt or stud etc., the head of screw, which is arranged at, to be fastened outside hole 1112, spiral shell
The screw rod of nail can be equipped with external screw thread, and internal thread can be provided with by fastening in hole 1112, and screw rod, which is arranged at, to be fastened in hole 1112, and
It and can be to 1111 movement of perforation by the screw thread on rotary screw.When lighting infra-red laser diode and it being made to send light beam,
The exit direction of infra-red laser diode along light beam is placed in perforation 1111, it can be by infrared laser by rotary screw
Diode is fixed on mounting portion 111.
It is provided in support base 112 and adjusts through hole 1121, in some instances, the shape of support base 112 can be
Rectangle can be respectively equipped with an adjusting through hole 1121 on four angles of rectangle support base portion.
Adjustment means 12, which are movably connected in, to be adjusted between through hole 1121 and mounting base 13, for adjusting between light beam and screen
Pitch angle.Wherein, the shape of mounting base 13 can be identical with the shape of the support base 112 of mounting base 11, the two it is big
It is small can be identical or different.
In some instances, adjustment means 12 may include fastener 121 and spring 122, and the fastener 121 is, for example, spiral shell
Nail or bolt and stud can reduce the volume of the regulating part using screw, wherein, the head of screw is arranged at
It adjusts in through hole 1121, spring is arranged on screw rod, one end of screw rod is connected with head, and the other end of screw rod is arranged at mounting base
In 13 mounting groove 131；Alternatively, adjustment means 12 may include screw and rubber cushion, rubber cushion is equipped with through hole, and rubber cushion is set in screw rod
On.External screw thread can be provided on screw in adjustment means 12, interior spiral shell can be provided in the mounting groove 131 of mounting base 13
Line.Coordinate the elastic force of elastic component by rotary screw, the infra-red laser diode hair on mounting bracket 11 can be adjusted
Pitch angle between the light beam and screen that go out, it is convenient, flexible.
It, can using the regulating part of adjusting infra-red laser diode outgoing beam pitch angle provided in an embodiment of the present invention
Pitch angle between light beam and screen that neatly adjustment infra-red laser diode easy to adjust is sent.
As shown in Fig. 2, Fig. 2 is another embodiment of the present invention provide for whether detecting infrared light curtain parallel to screen
Detection device schematic diagram.
Infra-red laser diode 101,102,103,104..., n are shown, these infra-red laser diodes can be set in Fig. 2
It puts on screen a, such as is arranged on the top of screen or the edge of screen, each infra-red laser diode sends infrared beam,
The light beam that multiple infra-red laser diodes are sent forms light curtain on the screen.According to the needs of light curtain thickness evenness etc.,
The light beam that can be sent to multiple infra-red laser diodes is collimated and focused on.Make the light beam that infra-red laser diode is sent into
Row collimation and focusing are the common technologies of those skilled in the art, and details are not described herein.For clarity, only sparsely show in figure
Go out some infra-red laser diodes, in actual conditions, according to the needs of touch accuracy, more intensive infrared laser can be set
Diode.
For detecting whether infrared light curtain includes parallel to the detection device of screen：Platform 41 is reflected, is placed in light beam
In exit direction；First target 31 and the second target 32, the first target and the second target be placed in the infra-red laser diode and
It reflects between platform；The number that number is greater than or equal to infra-red laser diode is both provided on first target and the second target
Purpose laser beam perforation 311,312 ... m and 321,322 ... m ", the laser beam perforation and reflection platform are arranged so that：It is infrared
The light beam parallel to screen that laser diode is sent can be sequentially passed through on laser beam perforation and the second target on the first target
Corresponding laser beam perforation, finally it is described reflection platform on form speck；Infrared camera b is used to detect the reflection
With the presence or absence of speck on platform, when there is the speck different from the number of infra-red laser diode, implemented with regulating part to red
Adjusting of the outer laser diode in each dimension makes two pole of number and infrared laser of the speck formed on finally reflection platform
The number of pipe is identical.
It will elaborate below to more details.
As shown in Fig. 2, the first target 31 and the second target 32 are installed on the surface of screen a, it is provided on the first target 31
Multiple laser beam perforations 311,312 ..., m, be provided on the second target 32 multiple laser beam perforations 321,322 ..., m ", wherein, m
" it is the number that the integer more than 1, m and m " are greater than or equal to infra-red laser diode, multiple on the first target 31 swash with m
Light perforation 311,312 ..., m and multiple laser beam perforations 321 on the second target 32,322 ..., m " it is corresponding, and the first target
Multiple laser beam perforations 311 on 31,312 ..., m and multiple laser beam perforations 321 on the second target 32,322 ..., m " arrives
The distance of screen a is consistent, when the light beam also cross on the first target 31 multiple laser beam perforations 311,312 ..., m and
Corresponding laser beam perforation 321 on two targets 32,322 ..., m " when, formed and can be taken the photograph by infrared on the reflection platform 41
The speck that camera takes.Reflection platform 41 is arranged on beam exit direction, positioned at the edge of screen a or can be located at
Outside screen a.In some embodiments of the invention, it can be paper, lath or backlight etc. to reflect platform 41.
First target 31 and the second target 32 can also be pasted on the surface or removably solid of screen a by adhesive material
Determine to screen surface, such as：First target 31 and the second target 32 can be installed on screen a surfaces by glue or double faced adhesive tape.
In some embodiments of the invention, in technique, the first target 31 and the second target 32 can be integrally formed, so as to make
Multiple laser beam perforations 311 on one target 31,312 ..., m and multiple laser beam perforations 321 on the second target 32,322 ...,
One-to-one corresponding is better achieved in m "；Or first target and the second target be mounted on a slide, enable them to along light
Shu Fangxiang is moved together or is moved relative to each other.It can be according to the requirement of depth of parallelism height, that is, according to infrared light curtain
Accuracy requirement parallel with screen, to adjust the distance between the first target and the second target and they and infrared laser
The distance of diode；Spacing between first target and the second target is bigger, and the corresponding actual depth of parallelism of judging result is also higher,
In the case where spacing is certain, the first target and the second target off screen curtain are more remote, and the corresponding actual depth of parallelism of judging result is also got over
It is high.
In some embodiments of the invention, multiple laser beam perforations 311 on the first target 31,312 ..., m and the second target
Mark 32 on multiple laser beam perforations 321,322 ..., m " can be it is poroid, such as：Round hole, polygonal hole or slotted eye
Deng, it can specifically be determined according to the cross sectional shape of the laser beam of outgoing, multiple laser beam perforations 311 on the first target 31,
312nd ..., corresponding multiple laser beam perforations 321 on m and the second target 32,322 ..., line and the beam exit direction phase of m "
Together, the thickness along beam exit direction is the smaller the better, to save the sky that the first target 31 and the second target 32 occupy on the screen
Between.Multiple laser beam perforations 311 on first target 31,312 ..., corresponding multiple laser are worn on m and the second target 32
Hole 321,322 ..., the number of m " can be more than and/or the number of equal to every group infra-red laser diode mid-infrared laser diode
Mesh, multiple laser beam perforations 311 on the first target 31,312 ..., it is corresponding multiple on the distance between m and the second target 32
Laser beam perforation 321,322 ..., the distance between m " can set in advance, can also be according to multiple two poles of infrared laser
Pipe 101,102,103 ..., the distance between n is adjusted.For example, in the case where being related to multigroup infra-red laser diode,
Infra-red laser diode between group and group be spaced arrangement or it is front and rear on laser emitting direction placed in two rows of, after
The light beam that the infra-red laser diode of row is sent is emitted from the gap between front-seat infra-red laser diode, and difference group is infrared
The distance between adjacent infra-red laser diode may be different in laser diode, therefore, test previous group infrared laser two
It, can be by adaptively adjusting when testing the light beam that next group of infra-red laser diode is sent after the light beam that pole pipe is sent
The distance between multiple laser beam perforations on first target 31 and the second target 32 enable to adapt to next group of two pole of infrared laser
The distance between pipe, so that foregoing first target and the can be used when being debugged to different groups of infra-red laser diodes
Two targets improve the flexibility of test, and can save resource.
Infrared camera b 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 first target 31 and the second target
Laser beam perforation on 32, the light beam which sends is parallel to screen；If on the contrary, some two pole of infrared laser
The light beam that pipe is sent does not form speck on reflection platform 41, then illustrates that the light beam that the infra-red laser diode is sent is not parallel
In screen a, it is necessary to which the beam exit direction of the infra-red laser diode is adjusted by regulating part.The regulating part can be with
By the regulating part illustrated in above-described embodiment, it can refer to the content described in above-described embodiment and understood, it is no longer superfluous herein
It states.
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, Mei Gehong
Outer laser diode is arranged in the top of screen along curved surface, and correspondingly, the first target and the second target and reflection are put down
Platform is arranged in also along curved surface on screen.The light parallel to screen being emitted from infra-red laser diode again passes through the first target
Laser beam perforation on mark and the second target forms speck on reflection platform, just like described in earlier in respect of figures 2, no longer goes to live in the household of one's in-laws on getting married herein
It states.
It provides whether to detect infrared light curtain parallel to screen as shown in figure 3, Fig. 3 is another embodiment of the present invention
The flow chart of detection method, the infrared light curtain emit infrared beam shape by multiple infra-red laser diodes being placed on screen
Into as previously described；The described method includes：
S11：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..
S12：First target and the second target are arranged between the infra-red laser diode and reflection platform；Described
Laser beam perforation of the number more than or equal to the number of infra-red laser diode is both provided on one target and the second target, it is described to swash
Light is perforated and reflection platform is arranged so that：The light beam parallel to screen that infra-red laser diode is sent can sequentially pass through
The corresponding laser beam perforation on laser beam perforation and the second target on one target finally forms speck on the reflection platform.
S13：It whether there is speck on the infrared camera detection reflection platform, when presence and infra-red laser diode
Number different speck when, implement the adjusting to infra-red laser diode in each dimension with regulating part, until infrared swash
During the same number of speck of optical diode, judge light beam that the infra-red laser diode is sent parallel to the screen.
Component and connection relation therein involved by each steps of more than S11-S13 may be referred to front and done around Fig. 2
Description.
For example, can by the first target 31 multiple laser beam perforations 311,312 ..., on m and the second target 32
Multiple laser beam perforations 321,322 ..., the distance of m " to screen a be arranged to consistent, when the light beam is also cross the first target
Multiple laser beam perforations 311 on 31,312 ..., m and corresponding laser beam perforation 321 on the second target 32,322 ..., m "
When, the speck that can be taken by thermal camera is formed on the reflection platform 41.Reflection platform 41 can be arranged at
On beam exit direction, herein under the premise of, can reflection platform be for example arranged at the edge of screen a or be arranged at screen a
Outside.In some embodiments of the invention, reflection platform 41 can be paper, lath or infrared light backlight etc., the back of the body
The presence of tabula rasa quickly navigates to the region for substantially needing to observe, the light intensity of backlight when observing thermal camera convenient for human eye
Can be very weak, an observation is only provided and is guided.
First target 31 and the second target 32 can be pasted on to the surface or removably solid of screen a with adhesive material
Determine to screen；First target 31 and the second target 32 can be integrally formed, it is multiple sharp on the first target 31 so as to make
Light perforation 311,312 ..., m and multiple laser beam perforations 321 on the second target 32,322 ..., that m " is better achieved one is a pair of
It should.
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 first
Multiple laser beam perforations 311 on target 31,312 ..., corresponding multiple laser beam perforations 321 on m and the second target 32,
322nd ... the line of, m " is identical with the beam exit direction parallel to screen, and the thickness along beam exit direction is the smaller the better,
To save the first target 31 and the second target 32 the space occupied on the screen.It can make multiple sharp on first target 31
Light perforation 311,312 ..., corresponding multiple laser beam perforations 321 on m and the second target 32,322 ..., the number of m " can be big
In and/or equal to every group of infra-red laser diode mid-infrared laser diode number, multiple laser on the first target 31 wear
Hole 311,312 ..., corresponding multiple laser beam perforations 321 on the distance between m and the second target 32,322 ..., between m "
Distance can be set in advance, can also according to multiple infra-red laser diodes 101,102,103 ..., between n away from
From being adjusted.For example, in the case where being related to multigroup infra-red laser diode, infra-red laser diode between group and group that
This be intervally arranged or it is front and rear on laser emitting direction placed in two rows of, the light beam that the infra-red laser diode of heel row is sent
It is emitted from the gap between front-seat infra-red laser diode, adjacent two pole of infrared laser in difference group infra-red laser diode
The distance between pipe may be different, therefore, test after the light beam that previous group infra-red laser diode is sent, test next group
It, can be multiple sharp on the first target 31 and the second target 32 by adaptively adjusting during the light beam that infra-red laser diode is sent
The distance between light perforation, enables to adapt to the distance between next group of infra-red laser diode, so as to different groups
Foregoing first target and the second target can be used when infra-red laser diode is debugged, improve the flexibility of test, and
Resource can be saved.
Infrared camera b 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 first target 31 and the second target
Laser beam perforation on 32, the light beam which sends is parallel to screen；If on the contrary, some two pole of infrared laser
The light beam that pipe is sent does not form speck on reflection platform 41, then illustrates that the light beam that the infra-red laser diode is sent is not parallel
In screen a, it is necessary to be adjusted using present invention regulating part as shown in Figure 1 to the beam exit direction of the infra-red laser diode
Section so that the light beam that infra-red laser diode is sent can be also cross the first target 31 and the second target 32, so as to reflect
Speck is formed on platform 41.
It should be noted that although the present embodiment is parallel to infrared light curtain provided by the invention with step S11 to step S13
It is illustrated in the detection method of screen, but not because above-mentioned steps limit the detection 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.
As shown in figure 4, the infrared light curtain for generation parallel to screen that Fig. 4, which is another embodiment of the invention, to be provided
The flow chart of method, the described method includes：
S21：At least two infra-red laser diodes are placed on screen, it is made to emit infrared beam.
S22 is arranged at platform is reflected in the exit direction of light beam.
S23：First target and the second target are arranged between the infra-red laser diode and reflection platform；Described
Laser beam perforation of the number more than or equal to the number of infra-red laser diode is both provided on one target and the second target, it is described to swash
Light is perforated and reflection platform is arranged so that：The light beam parallel to screen that infra-red laser diode is sent can sequentially pass through
The corresponding laser beam perforation on laser beam perforation and the second target on one target finally forms speck on the reflection platform.
S24：It whether there is speck on the infrared camera detection reflection platform, when presence and infra-red laser diode
Number different speck when, implement the adjusting to infra-red laser diode in each dimension with regulating part, make finally to reflect
The number of the speck formed on platform is identical with the number of infra-red laser diode.
Component and connection relation therein involved by each steps of more than S21-S24 may be referred to front and done around Fig. 2
Description.
The structure of more than regulating part can refer to the content illustrated in above-described embodiment and be understood that details are not described herein again.
It should be noted that although the present embodiment is generated to provided by the invention parallel to screen with step S21 to step S24
The method of infrared light curtain of curtain is illustrated, but not because of above-mentioned steps to the generation provided by the invention parallel to screen
The method of infrared light curtain be defined, that is to say, that in some cases, the action recorded in detail in the claims or step
Desired result can be performed and still can realize according to different orders in this present embodiment.In certain embodiments
In, multitasking and parallel processing is 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. a kind of for adjusting the regulating part of infra-red laser diode light beam pitch angle, the regulating part includes：
Mounting bracket, including mounting portion and support base, the mounting portion includes hole of perforating and fasten, and the fastening hole and described wears
Hole is mutually perpendicular to, and the fastening hole is connected with the perforation, and adjusting through hole, the fastening hole are provided in the support base
It is interior to be equipped with fastener, for the infra-red laser diode to be fixed on along beam exit direction in the perforation；
Adjustment means are movably connected between the adjusting through hole and mounting base, for adjusting the shooting angle of the light beam；
Mounting base, is provided with adjusting slot, the adjustment means be arranged at the adjusting through hole and the adjusting slot it
Between.
2. according to claim 1 for adjusting the regulating part of infra-red laser diode light beam pitch angle, feature exists
In the support base is rectangle, and an adjusting through hole is respectively equipped on four angles of the support base.
3. according to claim 1 for adjusting the regulating part of infra-red laser diode light beam pitch angle, feature exists
In the adjustment means include screw and elastic component, and the elastic component is set in the screw, one end of the screw
Through the adjusting through hole, the other end of the screw is assigned into the adjusting slot；The elastic component is spring or glue
Pad.
4. it is a kind of for detect infrared light curtain whether parallel to screen detection method, the infrared light curtain is placed in by least two
Infra-red laser diode transmitting infrared beam on screen is formed, the described method includes：
Reflection platform is placed in the exit direction of light beam；
First target and the second target are arranged between the infra-red laser diode and reflection platform；First target and
Be both provided on second target number more than or equal to infra-red laser diode number laser beam perforation, the laser beam perforation and
Reflection platform is arranged so that：The light beam parallel to screen that infra-red laser diode is sent can be sequentially passed through on the first target
Laser beam perforation and the second target on corresponding laser beam perforation, finally it is described reflection platform on form speck；
With on the infrared camera 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 adjusting to infra-red laser diode in each dimension with regulating part, until infra-red laser diode
The same number of speck when, judge light beam that the infra-red laser diode is sent parallel to the screen.
5. it is according to claim 4 for detect infrared light curtain whether parallel to screen detection method, which is characterized in that
It is included in the exit direction of light beam and reflection platform is set on the screen；Or
It is included in the exit direction of light beam outside screen and reflection platform is set.
6. it is according to claim 4 for detect infrared light curtain whether parallel to screen detection method, which is characterized in that
The outgoing of the line of laser beam perforation laser beam perforation corresponding on the second target on first target and the light beam parallel to screen
Direction is identical；Interval between laser beam perforation can be adjusted；First target and the second target are pasted on screen with adhesive material
The surface of curtain；Alternatively, the first target and the second target are removably fixed to screen.
7. it is according to claim 4 detection infrared light curtain whether parallel to screen detection method, which is characterized in that including
According to the requirement of depth of parallelism height, to adjust the distance between the first target and the second target；And including according to depth of parallelism height
Low requirement, to adjust the first target and the second target to the distance of infra-red laser diode.
8. detection infrared light curtain according to claim 4-7 any one whether parallel to screen detection method, it is special
Sign is that the regulating part described in claim 1-3 any one including adjusting infra-red laser diode light beam pitching
The regulating part of angle.
9. 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；
First target and the second target are arranged between the infra-red laser diode and reflection platform；First target and
Be both provided on second target number more than or equal to infra-red laser diode number laser beam perforation, the laser beam perforation and
Reflection platform is arranged so that：The light beam parallel to screen that infra-red laser diode is sent can be sequentially passed through on the first target
Laser beam perforation and the second target on corresponding laser beam perforation, finally it is described reflection platform on form speck；
With on the infrared camera 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 adjusting to infra-red laser diode in each dimension with regulating part, until infra-red laser diode
The same number of speck when, judge light beam that the infra-red laser diode is sent parallel to the screen.
10. the method according to claim 9 for being used to generate the infrared light curtain parallel to screen, which is characterized in that described
Regulating part is the regulating part for being used to adjust infra-red laser diode light beam pitch angle described in claim 1-3 any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711362395.XA CN108110607A (en) | 2017-12-18 | 2017-12-18 | Regulating part, the method for detecting infrared light curtain, the method for generating infrared light curtain |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711362395.XA CN108110607A (en) | 2017-12-18 | 2017-12-18 | Regulating part, the method for detecting infrared light curtain, the method for generating infrared light curtain |
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|---|---|---|---|---|
| CN2894002Y (en) * | 2006-03-21 | 2007-04-25 | 深圳市大族激光科技股份有限公司 | Laser mounting regulator |
| CN101478113A (en) * | 2008-12-18 | 2009-07-08 | 河南中光学集团有限公司 | Flexible regulating apparatus for laser light axis and regulating method thereof |
| CN103579897A (en) * | 2012-07-31 | 2014-02-12 | 赖宇立 | Amusement laser device of special structure |
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