CN207703456U - Mobile phone fixed-focus image quality detector - Google Patents
Mobile phone fixed-focus image quality detector Download PDFInfo
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- CN207703456U CN207703456U CN201721602861.2U CN201721602861U CN207703456U CN 207703456 U CN207703456 U CN 207703456U CN 201721602861 U CN201721602861 U CN 201721602861U CN 207703456 U CN207703456 U CN 207703456U
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- 238000012360 testing method Methods 0.000 claims abstract description 95
- 238000005286 illumination Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 abstract description 16
- 239000000571 coke Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
This application involves the detecting instrument of mobile lens more particularly to mobile phone fixed-focus image quality detectors.Further include being set in the rack including rack：Test pattern group, including it is located in the rack nearly burnt test pattern and remote burnt test pattern；Increment microscope group, it is opposite with the remote burnt test pattern；Lighting source irradiates the test pattern group for sending out uniform illumination；Mobile holder, can drive mobile phone to be measured to be moved in rack；It is mounted with that nearly burnt survey sets graph card and remote burnt test pattern in rack, by mobile holder, by mobile phone to be measured, mobile realize on two graph cards switches far-and-near focus test, and increment microscope group is increased in rack, the image-forming range of remote burnt test pattern is set to simulate wide-long shot to the actual range of remote burnt test pattern more than mobile phone to be measured using the increment microscope group, the volume that detector can be greatly reduced, to effectively improve detection efficiency.
Description
【Technical field】
This application involves the detecting instrument of mobile lens more particularly to mobile phone fixed-focus image quality detectors.
【Background technology】
Mobile lens detection is an important indicator of handset capability test, usually to carry out nearly burnt shot detection and remote
Burnt shot detection verifies mobile lens focusing sensitivity and resolution ratio, and the distance of remote burnt shot detection warp needs up to 2 meters
More than, the prodigious test space is needed in this way, and some existing detectors move CHART afield using shooting is closely defocused
It is tested to carry out remote coke, not only efficiency is low in this way, but also keeps detecting instrument complicated, and volume is big.
【Invention content】
To solve the problems, such as that the space that mobile lens detection needs in the prior art so that greatly detection efficiency is low, the application carries
The mobile phone fixed-focus image quality detector that structure is relatively simple is supplied.
The application is achieved through the following technical solutions：
Mobile phone fixed-focus image quality detector, including rack further include being set in the rack：
Test pattern group, including it is located in the rack nearly burnt test pattern and remote burnt test pattern；
Increment microscope group, it is opposite with the remote burnt test pattern；
Lighting source irradiates the test pattern group for sending out uniform illumination；
Mobile holder, can drive mobile phone to be measured to be moved in rack；
The mobile holder is located at the top of the increment microscope group, and the remote burnt test pattern is located at the increment microscope group
Lower section, and the nearly burnt test pattern is located at the side of the increment microscope group, the mobile holder can drive mobile phone to be measured to move
It on to the nearly burnt test pattern or is moved in the increment microscope group, and remote burnt test pattern is shot by the increment microscope group
Image-forming range be more than mobile phone to be measured to the actual range of remote burnt test pattern.
Mobile phone fixed-focus image quality detector as described above, the mobile holder are equipped with and are located in the increment microscope group
Square both sides and for clamping the right hand machine holding frame and right hand machine holding frame of mobile phone to be measured, the both sides of the increment microscope group are all provided with
There are the nearly burnt test pattern, the mobile holder that can drive the right hand machine holding frame and the same luck of right hand machine holding frame
It is dynamic, and when the mobile phone to be measured on right hand machine holding frame is opposite with the increment microscope group, it is to be measured on the right hand machine holding frame
Mobile phone burnt test pattern close with lower section is opposite.
Mobile phone fixed-focus image quality detector as described above, the mobile holder include that the transverse direction being set in the rack is led
Rail, the driving unit for driving the Mobile base to be moved along the cross slide way, is set to the Mobile base on the cross slide way
Left support plate on the Mobile base and right support plate, the right hand machine holding frame are detachably connected on the left support plate, the right side
Mobile phone holding frame is detachably connected on the right support plate.
Mobile phone fixed-focus image quality detector as described above, the left support plate and right load can be driven by being additionally provided on the Mobile base
Plate is with respect to the rear burnt adjusting part that rack moves up and down.
Mobile phone fixed-focus image quality detector as described above, the rack is by several connection pole stocks for connecting into rack-like and encloses
It is located at the side plate composition of connection pole stock surrounding, the upper surface of the rack is equipped with the camera lens for installing the increment microscope group and supports
Plate, and it is equipped with the mounting plate for installing the nearly burnt test pattern, the nearly burnt survey positioned at the both sides of the camera lens support plate
Attempt card to be removably mounted on the mounting plate.
The bottom of mobile phone fixed-focus image quality detector as described above, the rack is equipped with bottom plate, and the bottom plate, which is equipped with, to be used
In the installation position of the installation remote burnt test pattern, and several positioning columns are additionally provided on the installation position, the remote burnt test pattern
It is removably mounted in installation position by several positioning columns.
Mobile phone fixed-focus image quality detector as described above, the picture and institute that the remote burnt test pattern is formed through the teleconverter
It states the distance between increment microscope group and is no less than 2 meters.
Mobile phone fixed-focus image quality detector as described above, the increment microscope group 3 include along optical axis from object plane to image planes successively
The optical system of the first lens, the second lens, the third lens and the 4th lens composition that are arranged；
The first lens object plane side is convex surface, and image planes side is concave surface, and its focal power is negative；
The second lens object plane side is concave surface, and image planes side is concave surface, and its focal power is just；
The third lens object plane side is convex surface, and image planes side is concave surface, and its focal power is negative；
4th lens object plane side is concave surface, and image planes side is plane, and its focal power is just.Mobile phone as described above is fixed
Burnt image quality detector, first lens, the second lens, the third lens and the 4th lens also meet following condition：
(1)1.50<Nd1<1.65；40<Vd1<65；
(2)1.75<Nd2<1.88；25<Vd2<50；
(3)1.55<Nd3<1.75；30<Vd3<55；
(4)1.70<Nd4<1.88；30<Vd4<60；
Wherein, Nd1 is the refractive index of the first lens, and Vd1 is the abbe number of the first lens；Nd2 is the folding of the second lens
Rate is penetrated, Vd2 is the abbe number of the second lens；Nd3 is the refractive index of the third lens, and Vd3 is the abbe number of the third lens；
Nd4 is the refractive index of the 4th lens, and Vd4 is the abbe number of the 4th lens.
Compared with prior art, the application has the following advantages：
1, this application provides mobile phone fixed-focus image quality detector, it is mounted with that nearly burnt survey sets graph card and remote coke is surveyed in rack
Attempt card, mobile realize on two graph cards switches far-and-near focus test by mobile phone to be measured by mobile holder, and in rack
Increment microscope group is increased, so that the image-forming range of remote burnt test pattern is more than mobile phone to be measured to remote burnt test chart using the increment microscope group
The actual range of card simulates wide-long shot, can greatly reduce the volume of detector, to effectively improve detection efficiency.
2, the mobile phone fixed-focus image quality detector of the application using Bicell phone holding frame and corresponds to double nearly burnt test patterns,
When left side mobile phone is in remote burnt test, right side mobile phone can carry out nearly burnt test simultaneously, and operation in this way is simple, is conducive to further
Detection efficiency is improved, and is effectively utilized space so that the structure of this detector is more simple, compact, is conducive to less body
Product, and operation, raising efficiency can be completed in one.
3, the mobile phone fixed-focus image quality detector of the application, mobile phone to be measured are mounted on by mobile phone holding frame on support plate, can be right
It answers the mobile phone of different model, size to replace corresponding mobile phone holding frame, the application detector is enable to be applicable in more extensively, and
Burnt adjusting part after being additionally provided with can adjust hand to be measured after the mobile phone for having replaced different size model by the rear burnt adjusting part
Machine keeps the clarity of test imaging at a distance from increment microscope group, is conducive to the quality for improving test while structure facilitates.
4, the nearly burnt test pattern of the mobile phone fixed-focus image quality detector of the application and remote burnt test pattern are all detachably to pacify
Dress, it is quick installed on installation position by positioning column, it is convenient quickly to be positioned when replacing different test patterns, do not have to
The position for readjusting correction test pattern and camera lens, further improves testing efficiency.
【Description of the drawings】
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present application, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram one (hidden parts part) of the application mobile phone fixed-focus image quality detector；
Fig. 2 is the structural schematic diagram two of the application mobile phone fixed-focus image quality detector.
【Specific implementation mode】
The technical issues of in order to keep the application solved, technical solution and advantageous effect are more clearly understood, below in conjunction with
The application is further elaborated in accompanying drawings and embodiments.It should be appreciated that specific embodiment described herein is only used
To explain the application, it is not used to limit the application.
The application is achieved through the following technical solutions：
As shown in Figure 1 and Figure 2, mobile phone fixed-focus image quality detector, including rack 1 further include being set in the rack 1：It surveys
Attempt card group, including is located in the rack 1 nearly burnt test pattern 21 and remote burnt test pattern 22；Increment microscope group 3, and it is described remote
Burnt test pattern 22 is opposite；Lighting source irradiates the test pattern group for sending out uniform illumination；Mobile holder 4, can band
Mobile phone to be measured is moved to move in rack 1；The mobile holder 4 is located at the top of the increment microscope group 3, the remote burnt test pattern
22 are located at the lower section of the increment microscope group 3, and the nearly burnt test pattern 21 is located at the side of the increment microscope group 3, the shifting
Dynamic load part 4 can drive mobile phone to be measured to be moved on the nearly burnt test pattern 21 or be moved in the increment microscope group 3, and pass through
The increment microscope group 3 shoot remote burnt test pattern 22 image-forming range be more than mobile phone to be measured to remote burnt test pattern 22 it is practical away from
From.This application provides mobile phone fixed-focus image quality detector, it is mounted with that nearly burnt survey sets graph card and remote burnt test pattern in rack,
By mobile holder, by mobile phone to be measured, mobile realize on two graph cards switches far-and-near focus test, and increasing is increased in rack
Away from microscope group, the image-forming range of remote burnt test pattern is set to be more than mobile phone to be measured to the reality of remote burnt test pattern using the increment microscope group
Distance simulates wide-long shot, can greatly reduce the volume of detector, to effectively improve detection efficiency.
Further, the mobile holder 4 be equipped be located at 3 top both sides of the increment microscope group and for clamping
The right hand machine holding frame 401 and right hand machine holding frame 402 of mobile phone to be measured, the both sides of the increment microscope group 3 are equipped with described close
Burnt test pattern 21, the mobile holder 4 can drive the right hand machine holding frame 401 and right hand machine holding frame 402 while move,
And when the mobile phone to be measured on right hand machine holding frame 401 is opposite with the increment microscope group 3, on the right hand machine holding frame 402
Mobile phone to be measured and the nearly burnt test pattern 21 of lower section are opposite.It is equivalent between 401 right hand machine holding frame 402 of right hand machine holding frame
Distance is equal to the horizontal distance between increment microscope group and nearly burnt test pattern, can make the mobile phone to be measured of the left and right sides can be simultaneously in this way
Test detection is carried out, efficiency is improved.And operation is simple, is conducive to further increase detection efficiency, and be effectively utilized sky
Between so that the structure of this detector is more simple, compact, is conducive to less volume.
Specifically, the mobile holder 4 includes the cross slide way 41 being set in the rack 1, is set to the cross slide way
Driving unit that Mobile base 42 on 41, the driving Mobile base 42 is moved along the cross slide way 41 is set to the Mobile base
Left support plate on 42 and right support plate, the right hand machine holding frame 401 are detachably connected on the left support plate, the right Mobile phone clip
Frame 402 is held to be detachably connected on the right support plate.Mobile phone to be measured is mounted on by mobile phone holding frame on support plate, and difference can be corresponded to
Model, size mobile phone replace corresponding mobile phone holding frame, so that the application detector is applicable in more extensively.Cross slide way is adopted
With the linear guide, be conducive to the stationarity for improving movement.
Moreover, even formula cylinder can be used in driving unit, great advantage is to save installation space, can further reduce detection
The volume of instrument.
In addition, in order to be further simplified structure, left support plate and right support plate can be made of one, right hand machine holding frame 401 with
Right hand machine holding frame 402 also can reach identical effect in the both sides of support plate respectively.
In addition, after being additionally provided on the Mobile base 42 the left support plate and right support plate being driven to be moved up and down with respect to rack
Burnt adjusting part.Burnt adjusting part includes the connecting seat being connected on the Mobile base 42 and can be moved relative to connecting seat afterwards
Link block, the left support plate and right support plate be connected on link block, multiple screens can be arranged on link block to adjust with crossing
The position of link block can also adjust the position of link block by drive mechanisms such as screw rods.Different size model can replaced
Mobile phone after mobile phone to be measured adjusted with increment microscope group at a distance from by the rear burnt adjusting part, the clarity for keeping test to be imaged,
Be conducive to improve the quality of test while structure facilitates.
Wherein, the rack 1 by several connection pole stocks 11 for connecting into rack-like and be disposed around connection pole stock surrounding side
Plate 12 forms, and the upper surface of the rack 1 is equipped with the camera lens support plate 101 for installing the increment microscope group 3, and positioned at described
The both sides of camera lens support plate 101 are equipped with the mounting plate for installing the nearly burnt test pattern 21, the nearly burnt test pattern 21
It is removably mounted on the mounting plate.The bottom of the rack 1 is equipped with bottom plate 102, and the bottom plate 102 is equipped with for installing
The installation position of the remote burnt test pattern 22, and several positioning columns are additionally provided on the installation position, the remote burnt test pattern 22 is logical
Several positioning columns are crossed to be removably mounted in installation position.Nearly coke test pattern and remote burnt test pattern are all detachably to pacify
Dress, it is quick installed on installation position by positioning column, it is convenient quickly to be positioned when replacing different test patterns, do not have to
The position for readjusting correction test pattern and camera lens, further improves testing efficiency.
22 distance away from the increment microscope group 3 of the remote burnt test pattern is less than 1 times of focal length of the increment microscope group 3.Institute
State remote burnt test pattern 22 through the increment microscope group 3 at no less than 2 meters of the distance between picture and the increment microscope group 3.This Shen
Please remote burnt test pattern be placed in one times of focal length of increment microscope group, after increment microscope group at the virtual image image distance up to 2m,
It tests, will need originally very big to carry out remote coke to make the shooting distance that testing mobile phone simulates 2 meters or more in rack
Detection environment reduce, reduce space waste, improve detection efficiency.After increment microscope group, the height of the application rack
(i.e. the distance of the remote burnt test pattern of increment microscope group distance) can make 300mm to 360mm, the significantly less volume of equipment.
In addition, the increment microscope group 3 include the first lens set gradually from object plane to image planes along optical axis, the second lens,
The optical system of the third lens and the 4th lens composition；
The first lens object plane side is convex surface, and image planes side is concave surface, and its focal power is negative；
The second lens object plane side is concave surface, and image planes side is concave surface, and its focal power is just；
The third lens object plane side is convex surface, and image planes side is concave surface, and its focal power is negative；
4th lens object plane side is concave surface, and image planes side is plane, and its focal power is just.Specifically, described first
Lens, the second lens, the third lens and the 4th lens also meet following condition：
(1)1.50<Nd1<1.65；40<Vd1<65；
(2)1.75<Nd2<1.88；25<Vd2<50；
(3)1.55<Nd3<1.75；30<Vd3<55；
(4)1.70<Nd4<1.88；30<Vd4<60；
Wherein, Nd1 is the refractive index of the first lens, and Vd1 is the abbe number of the first lens；Nd2 is the folding of the second lens
Rate is penetrated, Vd2 is the abbe number of the second lens；Nd3 is the refractive index of the third lens, and Vd3 is the abbe number of the third lens；
Nd4 is the refractive index of the 4th lens, and Vd4 is the abbe number of the 4th lens.
Further, first lens strength is negative, focal length：-85mm<f1<- 80mm, preferred focal length f1
For -83.16mm.The refractive index Nd1 preferably 1.60 of first lens, abbe number Vd1 preferably 60 are conducive to make optical system
Or camera lens forms sharp image.
Still further, second lens strength is just, focal length 100mm<f2<110mm, preferred focal length f2 are
107.54mm.The refractive index Nd2 preferably 1.80 of second lens, abbe number Vd2 preferably 47, be conducive to make optical system or
Camera lens forms sharp image.
Also further, the third lens focal power is negative, focal length：-99mm<f3<- 90mm, preferred focal length f3
For -98.14mm.The refractive index Nd3 preferably 1.60 of the third lens, abbe number Vd3 preferably 35 are conducive to make optical system
Or camera lens forms sharp image.
Further, the 4th lens strength is just focal length：60mm<f4<70mm, preferred focal length f4 are
68.09mm.The refractive index Nd4 preferably 1.75 of the third lens, abbe number Vd4 preferably 50, be conducive to make optical system or
Camera lens forms sharp image.
Specifically, in the present embodiment, every basic parameter of this optical lens is as shown in the table：
| Surface | Radius of curvature R (mm) | Focal length f (mm) | Refractive index Nd | Abbe number Vd |
| S1 | 850 | -83.46 | 1.60 | 60 |
| S2 | -50 | |||
| S3 | -70 | 107.54 | 1.80 | 47 |
| S4 | -750 | |||
| S5 | 1050 | -98.14 | 1.60 | 35 |
| S6 | -60 | |||
| S7 | -50 | 68.09 | 1.75 | 50 |
| S8 | It is infinitely great |
In upper table, along optical axis from object plane to image planes, S1, S2 correspond to two surfaces of the first lens；S3, S4 correspond to
Two surfaces of two lens；S5, S6 correspond to two surfaces of the third lens；S7, S8 correspond to two surfaces of the 4th lens.
By the way that the first lens to the 4th lens are reasonably arranged in pairs or groups, the characteristics of using each eyeglass self structure, make
The field angle of camera lens reaches 90 ° of range, and optical system is made at an image distance can be more than 2m to the object at image planes end
Picture, so as to simulate the shooting of remote range in a small range.
This application provides mobile phone fixed-focus image quality detector, it is mounted with that nearly burnt survey sets graph card and remote burnt test in rack
Graph card, by mobile holder, by mobile phone to be measured, mobile realize on two graph cards switches far-and-near focus test, and increases in rack
Increment microscope group is added, so that the image-forming range of remote burnt test pattern is more than mobile phone to be measured to remote burnt test pattern using the increment microscope group
Actual range simulate wide-long shot, the volume of detector can be greatly reduced, to effectively improve detection efficiency.
It is the one or more embodiments for combining particular content to provide as described above, does not assert the specific reality of the application
It applies and is confined to these explanations.It is all approximate with the present processes, structure etc., identical, or under the application concept thereof
It makes several technologies to deduce, or replaces the protection domain that all should be considered as the application.
Claims (9)
1. mobile phone fixed-focus image quality detector, including rack (1), which is characterized in that further include being set in the rack (1)：
Test pattern group, including it is located in the rack (1) nearly burnt test pattern (21) and remote burnt test pattern (22)；
Increment microscope group (3), it is opposite with the remote burnt test pattern (22)；
Lighting source irradiates the test pattern group for sending out uniform illumination；
Mobile holder (4), can drive mobile phone to be measured to be moved in rack (1)；
The mobile holder (4) is located at the top of the increment microscope group (3), and the remote burnt test pattern (22) is located at the increment
The lower section of microscope group (3), and the nearly burnt test pattern (21) is located at the side of the increment microscope group (3), the mobile holder (4)
Mobile phone to be measured can be driven to be moved on the nearly burnt test pattern (21) or be moved on the increment microscope group (3), and pass through institute
The image-forming range for stating the remote burnt test pattern (22) of increment microscope group (3) shooting is more than mobile phone to be measured to the reality of remote burnt test pattern (22)
Border distance.
2. mobile phone fixed-focus image quality detector according to claim 1, which is characterized in that the mobile holder (4) is equipped with
Be located at both sides above the increment microscope group (3) and right hand machine holding frame (401) and the right hand for clamping mobile phone to be measured
The both sides of machine holding frame (402), the increment microscope group (3) are equipped with the nearly burnt test pattern (21), the mobile holder
(4) the right hand machine holding frame (401) and right hand machine holding frame (402) can be driven while being moved, and work as right hand machine holding frame
(401) when mobile phone to be measured on is opposite with the increment microscope group (3), mobile phone to be measured on the right hand machine holding frame (402) with
The nearly burnt test pattern (21) of lower section is opposite.
3. mobile phone fixed-focus image quality detector according to claim 2, which is characterized in that the mobile holder (4) includes setting
In the cross slide way (41) in the rack (1), the Mobile base (42) on the cross slide way (41), the driving movement
Left support plate and right support plate of the seat (42) along the driving unit that the cross slide way (41) moves, on the Mobile base (42),
The right hand machine holding frame (401) is detachably connected on the left support plate, and the right hand machine holding frame (402) is detachably connected
On the right support plate.
4. mobile phone fixed-focus image quality detector according to claim 3, which is characterized in that be additionally provided on the Mobile base (42)
The left support plate and right support plate can be driven with respect to the rear burnt adjusting part that rack moves up and down.
5. mobile phone fixed-focus image quality detector according to claim 1, which is characterized in that the rack (1) is by several connections
At rack-like connection pole stock (11) and be disposed around connection pole stock surrounding side plate (12) composition, the upper surface of the rack (1)
Equipped with the camera lens support plate (101) for installing the increment microscope group (3), and positioned at the both sides of the camera lens support plate (101)
Equipped with the mounting plate for installing the nearly burnt test pattern (21), the nearly burnt test pattern (21) is removably mounted at described
On mounting plate.
6. mobile phone fixed-focus image quality detector according to claim 5, which is characterized in that the bottom of the rack (1) is equipped with
Bottom plate (102), the bottom plate (102) are equipped with the installation position for installing the remote burnt test pattern (22), and the installation position
On be additionally provided with several positioning columns, the remote burnt test pattern (22) is removably mounted at installation position by several positioning columns
It is interior.
7. mobile phone fixed-focus image quality detector according to claim 1, which is characterized in that the remote burnt test pattern (22) passes through
The increment microscope group (3) at no less than 2 meters of the distance between picture and the increment microscope group (3).
8. mobile phone fixed-focus image quality detector according to claim 1, which is characterized in that the increment microscope group (3) includes edge
The optical system of the first lens, the second lens, the third lens and the 4th lens composition that optical axis is set gradually from object plane to image planes
System；
The first lens object plane side is convex surface, and image planes side is concave surface, and its focal power is negative；
The second lens object plane side is concave surface, and image planes side is concave surface, and its focal power is just；
The third lens object plane side is convex surface, and image planes side is concave surface, and its focal power is negative；
4th lens object plane side is concave surface, and image planes side is plane, and its focal power is just.
9. mobile phone fixed-focus image quality detector according to claim 8, which is characterized in that first lens, the second lens,
The third lens and the 4th lens also meet following condition：
(1)1.50<Nd1<1.65；40<Vd1<65；
(2)1.75<Nd2<1.88；25<Vd2<50；
(3)1.55<Nd3<1.75；30<Vd3<55；
(4)1.70<Nd4<1.88；30<Vd4<60；
Wherein, Nd1 is the refractive index of the first lens, and Vd1 is the abbe number of the first lens；Nd2 is the refractive index of the second lens,
Vd2 is the abbe number of the second lens；Nd3 is the refractive index of the third lens, and Vd3 is the abbe number of the third lens；Nd4 is
The refractive index of four lens, Vd4 are the abbe number of the 4th lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602861.2U CN207703456U (en) | 2017-11-24 | 2017-11-24 | Mobile phone fixed-focus image quality detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602861.2U CN207703456U (en) | 2017-11-24 | 2017-11-24 | Mobile phone fixed-focus image quality detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207703456U true CN207703456U (en) | 2018-08-07 |
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ID=63023727
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721602861.2U Expired - Fee Related CN207703456U (en) | 2017-11-24 | 2017-11-24 | Mobile phone fixed-focus image quality detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207703456U (en) |
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2017
- 2017-11-24 CN CN201721602861.2U patent/CN207703456U/en not_active Expired - Fee Related
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