CN108844627A - Laser testing method and electronic equipment for eye-safe - Google Patents
Laser testing method and electronic equipment for eye-safe Download PDFInfo
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- CN108844627A CN108844627A CN201810618461.3A CN201810618461A CN108844627A CN 108844627 A CN108844627 A CN 108844627A CN 201810618461 A CN201810618461 A CN 201810618461A CN 108844627 A CN108844627 A CN 108844627A
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims description 13
- 230000006870 function Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000001747 pupil Anatomy 0.000 description 2
- 238000011076 safety test Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003733 optic disk Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4257—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Studio Devices (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The application proposes a kind of laser testing method and electronic equipment for eye-safe, wherein the laser testing method for eye-safe includes：By laser emitter by laser projection to laser pick-off face；It is obtained by camera and is formed by laser image on laser projection to laser pick-off face, laser image is made of the different laser speckle of multiple brightness；Laser image is scanned with default unit sizes, to determine in laser image, the maximum region of the brightness value of laser speckle, wherein the size in the maximum region of brightness value is identical as default unit sizes.The laser testing method and electronic equipment for eye-safe of the embodiment of the present application, can quickly and accurately determine the strongest region of laser energy, provide effectively data basis for the safety of testing laser.
Description
Technical field
This application involves technical field of mobile terminals more particularly to a kind of laser testing methods and electricity for eye-safe
Sub- equipment.
Background technique
With the continuous progress of science and technology, the application field of laser technology is more and more extensive, such as laser printer, laser thunder
It reaches, laser barcode scanning etc..In daily life, using to laser require to apply by safety test.That is, testing laser
Whether energy reaches the regulation of international laser safety standard.How quickly and accurately laser to be tested, it has also become need to solve
Certainly the problem of.
Apply for content
The application is intended to solve at least some of the technical problems in related technologies.
For this purpose, the application proposes a kind of laser testing method and electronic equipment for eye-safe, it can quickly, accurately
The strongest region of laser energy is determined on ground, provides effectively data basis for the safety of testing laser.
The application one side embodiment proposes a kind of laser testing method for eye-safe, including：
By laser emitter by laser projection to laser pick-off face；
It is obtained by camera and is formed by laser image on the laser projection to the laser pick-off face, the laser
Image is made of the different laser speckle of multiple brightness；
The laser image is scanned with default unit sizes, in the determination laser image, laser speckle
The maximum region of brightness value, wherein the size in the maximum region of brightness value is identical as the default unit sizes.
Optionally, the laser pick-off face is more than or equal to 100 millimeters at a distance from the laser emitter.
Optionally, the shape of the default unit sizes is circle, and the circular diameter is 7 millimeters.
Optionally, the laser image is scanned with default unit sizes, in the determination laser image, laser
The maximum region of the brightness value of speckle, including：
The laser image is converted into gray level image；
The gray level image is scanned with the default unit sizes, with each scanning in the determination gray level image
The gray value in the region crossed；
Using the highest region of gray value as the maximum region of the brightness value.
Optionally, method further includes：
It is after the maximum region of the brightness value of laser speckle, the brightness value is maximum in determining the laser image
The brightness value in region be compared with default safety value；
When the brightness value in the maximum region of the brightness value is less than the default safety value, the laser emitter is determined
The laser safety launched.
The laser testing method for eye-safe of the embodiment of the present application, by laser emitter by laser projection to swash
Light receiving surface, and obtained by camera and be formed by laser image on the laser projection to the laser pick-off face, then
The laser image is scanned with default unit sizes, in the determination laser image, the brightness value of laser speckle is most
Big region can quickly and accurately determine the strongest region of laser energy, provide effectively for the safety of testing laser
Data basis.
Two aspect embodiment of the application proposes a kind of electronic equipment, including：
Laser emitter is used for laser projection to laser pick-off face；
Camera is formed by laser image for obtaining on the laser projection to the laser pick-off face, described to swash
Light image is made of the different laser speckle of multiple brightness；
Scanner for being scanned with default unit sizes to the laser image, and generates scanning result；
Controller, the controller is connected with the laser emitter, the camera, the scanner respectively, described
Controller is used to control the laser emitter and the scanner, and receives the scanning result, and according to institute
It states scanning result to determine in the laser image, the maximum region of the brightness value of laser speckle, wherein the brightness value is maximum
The size in region is identical as the default unit sizes.
Optionally, the laser pick-off face is more than or equal to 100 millimeters at a distance from the laser emitter.
Optionally, the shape of the default unit sizes is circle, and the circular diameter is 7 millimeters.
Optionally, the controller, is specifically used for：
The laser image is converted into gray level image；
The gray level image is scanned with the default unit sizes, with each scanning in the determination gray level image
The gray value in the region crossed；
Using the highest region of gray value as the maximum region of the brightness value.
Optionally, the controller, is also used to：
It is after the maximum region of the brightness value of laser speckle, the brightness value is maximum in determining the laser image
The brightness value in region be compared with default safety value；
When the brightness value in the maximum region of the brightness value is less than the default safety value, the laser emitter is determined
The laser safety launched.
The electronic equipment of the embodiment of the present application, by laser emitter by laser projection to laser pick-off face, and by taking the photograph
It is formed by laser image on the laser projection to the laser pick-off face as head obtains, then with default unit sizes to institute
Laser image is stated to be scanned, in the determination laser image, the maximum region of the brightness value of laser speckle, can quickly,
The strongest region of laser energy is accurately determined out, provides effectively data basis for the safety of testing laser.
The additional aspect of the application and advantage will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.
Detailed description of the invention
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 is a kind of flow chart of the laser testing method for eye-safe provided by the embodiment of the present application；
Fig. 2 is the schematic top plan view of laser projection provided by the embodiment of the present application；
Fig. 3 is the effect diagram of laser image provided by the embodiment of the present application；
Fig. 4 is flow chart of the another kind provided by the embodiment of the present application for the laser testing method of eye-safe；
Fig. 5 is the structural block diagram of a kind of electronic equipment provided by the embodiment of the present application.
Specific embodiment
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the application, and should not be understood as the limitation to the application.
Below with reference to the accompanying drawings the laser testing method and electronic equipment for eye-safe of the embodiment of the present application is described.
Fig. 1 is a kind of flow chart of the laser testing method for eye-safe provided by the embodiment of the present application.
As shown in Figure 1, the laser testing method for eye-safe includes the following steps：
S101, by laser emitter by laser projection to laser pick-off face.
In daily life, using to laser require to apply by safety test.For this purpose, the application proposes one
Kind is used for the laser testing method of eye-safe, can quickly and accurately determine the strongest region of laser energy, swashs to test
The safety of light provides effectively data basis.
It in one embodiment of the invention, can be by laser emitter by laser projection to laser pick-off face.
Wherein, laser pick-off face is more than or equal to 100 millimeters at a distance from laser emitter.
S102 is obtained by camera and is formed by laser image on laser projection to laser pick-off face.
Wherein, laser image is made of the different laser speckle of multiple brightness.
In one embodiment of the invention, by camera shooting get laser projection to laser pick-off face institute's shape
At laser image.
S103 is scanned laser image with default unit sizes, to determine in laser image, the brightness of laser speckle
It is worth maximum region.
Wherein, the size in the maximum region of brightness value is identical as default unit sizes.The shape of default unit sizes is circle
Shape, and circular diameter is 7 millimeters.Since whether testing laser energy is safe, the laser energy for injecting human eye is mainly detected
Whether it is large enough to generate injury to eyes, therefore, the present embodiment is using the shapes and sizes of pupil of human as default unit ruler
It is very little.
Specifically, laser image can be converted to gray level image, then gray level image is swept with default unit sizes
Retouch, so that it is determined that in gray level image each scanned region gray value, finally using the highest region of gray value as brightness
It is worth maximum region.Wherein, gray value highest indicates that brightness is higher, that is to say, that laser energy is most strong.
It is illustrated below with a specific example：
As shown in Fig. 2, laser and camera are arranged in parallel.Laser is by laser projection to laser pick-off face.Camera is to throwing
Laser image of the shadow on laser pick-off face is taken pictures.Since laser light source is multiple point light source groups at projecting to
Laser image on laser pick-off face is exactly the different laser speckle of brightness unevenly distributed, as shown in Figure 3.Then, with people
The scan box of the identical size in eye pupil hole progressively scans laser speckle.Laser image is converted into grayscale image, passes through scanning
Grayscale image obtains and reads gray value, and to select the strongest position of laser energy, i.e., (gray value maximum indicates bright to brightest area
It spends most bright).
The laser testing method for eye-safe of the embodiment of the present application, by laser emitter by laser projection to swash
Light receiving surface, and obtained by camera and be formed by laser image on laser projection to laser pick-off face, then with default single
Position size is scanned laser image, and to determine in laser image, the maximum region of the brightness value of laser speckle can be fast
Speed accurately determines out the strongest region of laser energy, provides effectively data basis for the safety of testing laser.
In another embodiment of the application, as shown in figure 4, the laser testing method for eye-safe further includes：
S104, in determining laser image, after the maximum region of the brightness value of laser speckle, by the maximum area of brightness value
The brightness value in domain is compared with default safety value.
S105 determines that laser transmitter projects go out when the brightness value in the maximum region of brightness value is less than default safety value
Laser safety.
It, can be by the brightness in the maximum region of brightness value after the maximum region of brightness value that laser speckle has been determined
Value is compared with default safety value.Wherein, presetting safety value is international safety standard, such as IEC60825.If laser image
The brightness value in the middle maximum region of brightness value is below international safety standard, then illustrates that the laser meets safety standard, Jin Erbao
Demonstrate,prove the safety of user.
To realize above-described embodiment, the application also proposes a kind of electronic equipment.
As shown in figure 5, electronic equipment includes laser emitter 510, camera 520, scanner 530 and controller 540.
Wherein, laser emitter 510 are used for laser projection to laser pick-off face.
Camera 520 is formed by laser image to laser pick-off face for obtaining laser projection, and laser image is by more
The different laser speckle composition of a brightness.
Scanner 530 for being scanned with default unit sizes to laser image, and generates scanning result.
Controller 540 is connected with laser emitter 510, camera 520, scanner 530 respectively, controller 540 for pair
Laser emitter and scanner are controlled, and receive scanning result, and determine in laser image according to scanning result, laser
The maximum region of the brightness value of speckle, wherein the size in the maximum region of brightness value is identical as default unit sizes.
It should be noted that the aforementioned explanation to the laser testing method for eye-safe, is also applied for this Shen
Please embodiment electronic equipment, unpub details in the embodiment of the present application, details are not described herein.
The electronic equipment of the embodiment of the present application, by laser emitter by laser projection to laser pick-off face, and by taking the photograph
Be formed by laser image on laser projection to laser pick-off face as head obtains, then with default unit sizes to laser image into
Row scanning, to determine in laser image, the maximum region of the brightness value of laser speckle can quickly and accurately determine laser
The strongest region of energy provides effectively data basis for the safety of testing laser.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present application, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing custom logic function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by the application
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that can on it the paper of print routine or other suitable be situated between
Matter, because can then be edited, be interpreted or when necessary with other for example by carrying out optical scanner to paper or other media
Suitable method is handled electronically to obtain program, is then stored in computer storage.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware in another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized：With for data-signal realize logic function logic gates from
Logic circuit is dissipated, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, can integrate in a processing module in each functional unit in each embodiment of the application
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
Embodiments herein is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as the limit to the application
System, those skilled in the art can be changed above-described embodiment, modify, replace and become within the scope of application
Type.
Claims (10)
1. a kind of laser testing method for eye-safe, which is characterized in that including：
By laser emitter by laser projection to laser pick-off face；
It is obtained by camera and is formed by laser image on the laser projection to the laser pick-off face, the laser image
It is made of the different laser speckle of multiple brightness；
The laser image is scanned with default unit sizes, in the determination laser image, the brightness of laser speckle
It is worth maximum region, wherein the size in the maximum region of brightness value is identical as the default unit sizes.
2. the method as described in claim 1, which is characterized in that the laser pick-off face is big at a distance from the laser emitter
In equal to 100 millimeters.
3. the method as described in claim 1, which is characterized in that the shape of the default unit sizes is round, and the circle
The diameter of shape is 7 millimeters.
4. the method as described in claim 1, which is characterized in that the laser image is scanned with default unit sizes,
With in the determination laser image, the maximum region of the brightness value of laser speckle, including：
The laser image is converted into gray level image；
The gray level image is scanned with the default unit sizes, with each scanned in the determination gray level image
The gray value in region；
Using the highest region of gray value as the maximum region of the brightness value.
5. method as claimed in claim 4, which is characterized in that further include：
In determining the laser image, after the maximum region of the brightness value of laser speckle, by the maximum area of the brightness value
The brightness value in domain is compared with default safety value；
When the brightness value in the maximum region of the brightness value is less than the default safety value, the laser transmitter projects are determined
Laser safety out.
6. a kind of electronic equipment, which is characterized in that including：
Laser emitter is used for laser projection to laser pick-off face；
Camera is formed by laser image for obtaining, the laser figure on the laser projection to the laser pick-off face
As being made of the different laser speckle of multiple brightness；
Scanner for being scanned with default unit sizes to the laser image, and generates scanning result；
Controller, the controller are connected with the laser emitter, the camera, the scanner respectively, the control
Device is used to control the laser emitter and the scanner, and receives the scanning result, and sweep according to described
It retouches result to determine in the laser image, the maximum region of the brightness value of laser speckle, wherein the maximum region of brightness value
Size it is identical as the default unit sizes.
7. electronic equipment as claimed in claim 6, which is characterized in that the laser pick-off face and the laser emitter away from
From more than or equal to 100 millimeters.
8. electronic equipment as claimed in claim 6, which is characterized in that the shape of the default unit sizes is round, and institute
Stating circular diameter is 7 millimeters.
9. electronic equipment as claimed in claim 6, which is characterized in that the controller is specifically used for：
The laser image is converted into gray level image；
The gray level image is scanned with the default unit sizes, with each scanned in the determination gray level image
The gray value in region；
Using the highest region of gray value as the maximum region of the brightness value.
10. electronic equipment as claimed in claim 9, which is characterized in that the controller is also used to：
In determining the laser image, after the maximum region of the brightness value of laser speckle, by the maximum area of the brightness value
The brightness value in domain is compared with default safety value；
When the brightness value in the maximum region of the brightness value is less than the default safety value, the laser transmitter projects are determined
Laser safety out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618461.3A CN108844627B (en) | 2018-06-15 | 2018-06-15 | Laser testing method for human eye safety and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618461.3A CN108844627B (en) | 2018-06-15 | 2018-06-15 | Laser testing method for human eye safety and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108844627A true CN108844627A (en) | 2018-11-20 |
| CN108844627B CN108844627B (en) | 2020-04-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810618461.3A Expired - Fee Related CN108844627B (en) | 2018-06-15 | 2018-06-15 | Laser testing method for human eye safety and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020114001A1 (en) * | 2018-12-07 | 2020-06-11 | 南昌欧菲生物识别技术有限公司 | Detection system and detection method for detecting light power of light emitting module |
| CN113268137A (en) * | 2021-02-03 | 2021-08-17 | 深圳赋能软件有限公司 | Human eye protection device and method, identity recognition device and electronic equipment |
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| CN113268137A (en) * | 2021-02-03 | 2021-08-17 | 深圳赋能软件有限公司 | Human eye protection device and method, identity recognition device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108844627B (en) | 2020-04-10 |
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