CN107121267A - The test device and method of testing of the angle of view - Google Patents
The test device and method of testing of the angle of view Download PDFInfo
- Publication number
- CN107121267A CN107121267A CN201710457188.6A CN201710457188A CN107121267A CN 107121267 A CN107121267 A CN 107121267A CN 201710457188 A CN201710457188 A CN 201710457188A CN 107121267 A CN107121267 A CN 107121267A
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- angle
- protractor
- test
- fixture
- test device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a kind of test device of the angle of view, it includes protractor panel, fixture and electronic equipment, and protractor panel is provided with protractor scale；Fixture is used to clamp screen test to be measured；Electronic equipment is used to be connected with above-mentioned screen test to be measured, and shows the protractor scale picture of the lens shooting to be tested；Wherein, fixture is used for the central spot for making the screen test to be measured of its clamping be positioned at protractor scale.The test device has protractor panel, and user can obtain the angle of visual field of the camera lens by reading the scale at the two ends that the protractor of lens shooting to be tested portrays face, and without measuring the calculating with complexity, difficulty of test is small.The invention also discloses a kind of method of testing of the angle of view, it is applied to above-mentioned test device, can reduce difficulty of test.
Description
Technical field
The present invention relates to Mechanical Industry Technology field, more specifically to a kind of test device of the angle of view.
Background technology
The angle of visual field refers to using camera lens as summit, can be by two edges of the maximum magnitude of camera lens with the image of measured target
The angle of composition.The size of the angle of visual field determines the field range of optical instrument, and the angle of visual field is bigger, and the visual field is bigger, optics times
Rate is just smaller.Generally, target object exceedes this angle and would not be received in camera lens.
The angle of visual field of camera lens is divided into diagonal field of view angle (being designated as FOV-D), horizontal field of view angle (being designated as FOV-H) and vertical field of view
Angle (is designated as FOV-V), at present, need professional measured during the angle of visual field of testing lens and cumbersome mathematical computations after
Test result can be obtained, below by taking the measurement at diagonal field of view angle as an example, referring to Fig. 1, tester need to first measure during test
Then the center of chart calculates to the vertical range D on camera lens surface, the catercorner length L of chart according to trigonometric function relation, tool
Body formula is as follows：
FOV-D (θ)=2arctan (L/2D)
Obviously, measurement is both needed in above-mentioned test process, needs to calculate again, difficulty of test is big.
Therefore, the difficulty of test of the angle of view how is reduced, is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, the present invention provides a kind of test device of the angle of view, and it makes user be captured by reading camera lens
Protractor scale picture on protractor scale obtain the angle of visual field of the camera lens, without measuring and complicated calculating, survey
Measure difficulty small.The present invention also provides a kind of method of testing of the angle of view, and its test for being applied to the above-mentioned angle of view is filled
Put, difficulty of test can be reduced.
To achieve the above object, the present invention provides following technical scheme：
A kind of test device of the angle of view, including：
Protractor panel, the protractor panel is provided with protractor scale；
Fixture, the fixture is used to clamp screen test to be measured；
Electronic equipment, the electronic equipment is used to be connected with the screen test to be measured, and shows that the screen test to be measured is clapped
The protractor scale picture taken the photograph；
Wherein, the fixture is used for the central point for making the screen test to be measured of its clamping be positioned at the protractor scale
Place.
It is preferred that, in above-mentioned test device, the fixture can make the camera lens maintain horizontality, vertical state and
Heeling condition.
It is preferred that, in above-mentioned test device, the state that the heeling condition is with the angle of the vertical state is 45 °.
It is preferred that, in above-mentioned test device, the angular range of the protractor scale is 0 ° -180 °.
It is preferred that, in above-mentioned test device, the electronic equipment is computer, and the computer has display screen.
A kind of method of testing of the angle of view, applied to the test device described in any one in above-mentioned technical proposal,
Including：
1) the protractor panel and the fixture are laid；
2) screen test to be measured is held on the fixture, and the screen test to be measured is in preset state；
3) the protractor scale picture shown by the electronic equipment is observed, and reads the protractor scale picture two ends
Two scales at place, calculate the angle between two scales.
It is preferred that, in above-mentioned method of testing, the step 3) be：
The photo picture of the protractor scale shown by the electronic equipment is observed, and is read at the photo picture two ends
Two scales, calculate two scales between angle, be designated as ∠ 1；
The video pictures of the protractor scale shown by the electronic equipment are observed, and are read at the video pictures two ends
Two scales, calculate two scales between angle, be designated as ∠ 2；
The step 3) also include afterwards：
4) ∠ 1 and ∠ 2 average value is calculated, using the average value as the angle of visual field.
The present invention provides a kind of test device of the angle of view, and it includes protractor panel, fixture and electronic equipment, amount
Angle device panel is provided with protractor scale；Fixture is used to clamp screen test to be measured；Electronic equipment is used for and above-mentioned screen test to be measured
It is connected, and shows the protractor scale picture of the lens shooting to be tested；Wherein, fixture is used for the screen test to be measured for clamping it
It is positioned at the central spot of protractor scale.
The test device that the present invention is provided has a protractor panel, and user is by reading the protractor of lens shooting to be tested
The angle of visual field of the camera lens can be obtained by portraying the scale at the two ends in face, and without measuring the calculating with complexity, difficulty of test is small.
In addition, avoided in above-mentioned test device manual measurement apart from the step of, beneficial to improve measuring accuracy, and its should
It is easy to operate during, beneficial to the time of saving, improve testing efficiency.
The present invention also provides a kind of method of testing of the angle of view, and it is applied to above-mentioned test device, can reduce survey
Try difficulty.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the test schematic diagram at the diagonal field of view angle of camera lens in the prior art；
Fig. 2 is the structural representation of the test device of the angle of view provided in an embodiment of the present invention；
Wherein, in figure 2 above：
Protractor panel 101；Fixture 102；Electronic equipment 103；Data wire 123；Screen test 200 to be measured.
Embodiment
The embodiment of the invention discloses a kind of test device of the angle of view, it makes what user captured by reading camera lens
Protractor scale on protractor scale picture obtains the angle of visual field of the camera lens, without measuring and complicated calculating, measurement
Difficulty is small.The embodiment of the invention also discloses a kind of method of testing of the angle of view, it is applied to the above-mentioned angle of view
Test device, can reduce difficulty of test.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 2, the embodiment of the present invention provides a kind of test device of the angle of view, it includes protractor panel
101st, fixture 102 and electronic equipment 103, protractor panel 101 are provided with protractor scale；Fixture 102 is to be tested for clamping
Camera lens 200；Electronic equipment 103 is used to be connected with above-mentioned screen test 200 to be measured, and shows the amount that the screen test 200 to be measured is shot
Angle device scale picture；Wherein, fixture 102 is used for the central point for making the screen test to be measured 200 of its clamping be positioned at protractor scale
Place.Specifically, electronic equipment 103 is used to screen test 200 to be measured be connected by data wire 123.
Test device provided in an embodiment of the present invention has protractor panel 101, and user is by reading screen test 200 to be measured
The scale that the protractor of shooting portrays at the two ends in face can obtain the angle of visual field of the camera lens, without measuring and complicated meter
Calculate, difficulty of test is small.
In addition, avoided in above-mentioned test device manual measurement apart from the step of, beneficial to improve measuring accuracy, and its should
It is easy to operate during, beneficial to the time of saving, improve testing efficiency.
Specifically, the screen test to be measured 200 that fixture 102 is used to clamp it is positioned in protractor scale foremost
At heart point.
In above-mentioned test device, fixture 102 can make camera lens maintain horizontality, vertical state and heeling condition, tool
When body is applied, user can first make fixture 102 that camera lens is maintained into horizontality to be tested, to obtain the horizontal field of view of the camera lens
Angle, then makes fixture 102 that camera lens is maintained into vertical state and is tested, and to obtain the vertical field of view angle of the camera lens, finally makes
Camera lens is maintained heeling condition and tested by fixture 102, to obtain the diagonal field of view angle of the camera lens.
Above-mentioned horizontality, vertical state and heeling condition are the reference direction state in which of camera lens radially, three
Camera lens axially retains constant during kind of state, and camera lens is axially retained and the plane where protractor scale during three kinds of states
It is parallel.
Specifically, the heeling condition of camera lens refers to the state that the angle of mirror and vertical state is 45 °, certainly according to be tested
The size of camera lens 200, above-mentioned angle may be arranged as other values, and the present embodiment is not specifically limited.
The angular range of above-mentioned protractor scale is set to 0 ° -180 °, according to waiting testing lens 200 such as wide-angle lens
It is actually needed, the angular range of protractor scale may be arranged as 0 ° -270 °, or 0 ° -360 ° etc., and the present embodiment, which is not done, to be had
Body is limited.
Above-mentioned electronic equipment 103 is set to computer, and the computer has display screen.
Above-mentioned fixture may be configured as including base and the clip of base, above-mentioned card can be rotatably mounted in vertical plane
Folder need to be configured to position on base.Using when screen test 200 to be measured is clipped at above-mentioned clip, then as needed will
Clip turns to proper angle, and makes clip in positioning on base.
The embodiment of the present invention also provides a kind of method of testing of the angle of view, and it is applied to the test that examples detailed above is provided
Device, including：
1) protractor panel 101 and fixture 102 are laid；
Protractor panel 101 and fixture 102 can be specifically respectively placed in the step on horizontal table；
2) screen test 200 to be measured is held on fixture 102, and screen test 200 to be measured is in preset state；
The preset state may be configured as horizontality, vertical state or heeling condition, the angle of visual field tested as needed
Species is specifically set；
3) the protractor scale picture shown by observation electronic equipment 103, and reading at protractor scale picture two ends
Two scales, calculate the angle between two scales；
In the step, the angle as angle of visual field between above-mentioned two scales calculated.
It is preferred that, in order to improve the accuracy of angle of visual field test result, above-mentioned steps 3) be specially：
Observe electronic equipment 103 shown by protractor scale photo picture, and read at photo picture two ends two
Individual scale, calculates the angle between two scales, is designated as ∠ 1；
Observe electronic equipment 103 shown by protractor scale video pictures, and read at video pictures two ends two
Individual scale, calculates the angle between two scales, is designated as ∠ 2；
Accordingly, the step 3) also include afterwards：
4) ∠ 1 and ∠ 2 average value is calculated, using the average value as the angle of visual field.
Certainly, above-mentioned steps 3) in may also be configured to only read two scales at photo picture two ends, and remember ∠ 1 be regarding
Rink corner, or be set to only read two scales at video pictures two ends, and remember that ∠ 2 is the angle of visual field, the present embodiment, which is not done, to be had
Body is limited.
Method of testing provided in an embodiment of the present invention is applied to the test device that above-described embodiment is provided, and can reduce test
Difficulty.Certainly, the method for testing that the present embodiment is provided also has other effects of the relevant test device of above-described embodiment offer,
It will not be repeated here.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (7)
1. a kind of test device of the angle of view, it is characterised in that including：
Protractor panel, the protractor panel is provided with protractor scale；
Fixture, the fixture is used to clamp screen test to be measured；
Electronic equipment, the electronic equipment is used to be connected with the screen test to be measured, and shows the lens shooting to be tested
Protractor scale picture；
Wherein, the fixture is used for the central spot for making the screen test to be measured of its clamping be positioned at the protractor scale.
2. test device according to claim 1, it is characterised in that the fixture can make the camera lens maintain level
State, vertical state and heeling condition.
3. test device according to claim 2, it is characterised in that the heeling condition is the folder with the vertical state
Angle is 45 ° of state.
4. test device according to claim 1, it is characterised in that the angular range of the protractor scale is 0 °-
180°。
5. test device according to claim 1, it is characterised in that the electronic equipment is computer, and the computer has
There is display screen.
6. a kind of method of testing of the angle of view, applied to the test device described in claim 1-5 any one, its feature
It is, including：
1) the protractor panel and the fixture are laid；
2) screen test to be measured is held on the fixture, and the screen test to be measured is in preset state；
3) the protractor scale picture shown by the electronic equipment is observed, and is read at the protractor scale picture two ends
Two scales, calculate the angle between two scales.
7. method of testing according to claim 6, it is characterised in that the step 3) be：
Observe the photo picture of the protractor scale shown by the electronic equipment, and read at the photo picture two ends two
Individual scale, calculates the angle between two scales, is designated as ∠ 1；
Observe the video pictures of the protractor scale shown by the electronic equipment, and read at the video pictures two ends two
Individual scale, calculates the angle between two scales, is designated as ∠ 2；
The step 3) also include afterwards：
4) ∠ 1 and ∠ 2 average value is calculated, using the average value as the angle of visual field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710457188.6A CN107121267B (en) | 2017-06-16 | 2017-06-16 | Testing device and testing method for lens field angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710457188.6A CN107121267B (en) | 2017-06-16 | 2017-06-16 | Testing device and testing method for lens field angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107121267A true CN107121267A (en) | 2017-09-01 |
| CN107121267B CN107121267B (en) | 2023-07-14 |
Family
ID=59718976
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710457188.6A Active CN107121267B (en) | 2017-06-16 | 2017-06-16 | Testing device and testing method for lens field angle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702895A (en) * | 2017-09-28 | 2018-02-16 | 信利光电股份有限公司 | A kind of angle of view measuring method |
| CN108093247A (en) * | 2017-12-15 | 2018-05-29 | 信利光电股份有限公司 | A kind of test method of field angle of camera lens and test system |
| CN108827600A (en) * | 2018-05-31 | 2018-11-16 | 上海与德通讯技术有限公司 | measuring device |
| WO2019061044A1 (en) * | 2017-09-27 | 2019-04-04 | 深圳传音通讯有限公司 | Field of view measurement device, and field of view measurement method |
| CN110006634A (en) * | 2019-04-15 | 2019-07-12 | 北京京东方光电科技有限公司 | Visual field angle measuring method, visual field angle measuring device, display methods and display equipment |
| CN112880976A (en) * | 2021-01-14 | 2021-06-01 | 歌尔股份有限公司 | Incident beam angle adjusting device and method for manufacturing reflecting device |
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| US20170102221A1 (en) * | 2015-10-10 | 2017-04-13 | Boe Technology Group Co., Ltd. | Device for detecting rotation angle of prism and method for using the same |
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| GB191514671A (en) * | 1915-10-18 | 1916-10-12 | Edwin Miles Knowles | Improvements in Angle Testing Devices and the like. |
| CN202382691U (en) * | 2011-12-13 | 2012-08-15 | 安徽华东光电技术研究所 | Device for testing scattering angle of light source |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061044A1 (en) * | 2017-09-27 | 2019-04-04 | 深圳传音通讯有限公司 | Field of view measurement device, and field of view measurement method |
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| CN108093247A (en) * | 2017-12-15 | 2018-05-29 | 信利光电股份有限公司 | A kind of test method of field angle of camera lens and test system |
| CN108827600A (en) * | 2018-05-31 | 2018-11-16 | 上海与德通讯技术有限公司 | measuring device |
| CN110006634A (en) * | 2019-04-15 | 2019-07-12 | 北京京东方光电科技有限公司 | Visual field angle measuring method, visual field angle measuring device, display methods and display equipment |
| CN112880976A (en) * | 2021-01-14 | 2021-06-01 | 歌尔股份有限公司 | Incident beam angle adjusting device and method for manufacturing reflecting device |
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| Publication number | Publication date |
|---|---|
| CN107121267B (en) | 2023-07-14 |
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Effective date of registration: 20201013 Address after: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronic office building) Applicant after: GoerTek Optical Technology Co.,Ltd. Address before: 266100 Qingdao, Laoshan District, North House Street investment service center room, Room 308, Shandong Applicant before: GOERTEK TECHNOLOGY Co.,Ltd. |
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