CN101650167A - Eccentricity test device - Google Patents
Eccentricity test device Download PDFInfo
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- CN101650167A CN101650167A CN200810303740A CN200810303740A CN101650167A CN 101650167 A CN101650167 A CN 101650167A CN 200810303740 A CN200810303740 A CN 200810303740A CN 200810303740 A CN200810303740 A CN 200810303740A CN 101650167 A CN101650167 A CN 101650167A
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Abstract
The invention provides an eccentricity test device, comprising an eccentricity tester and a load-bearing device. The eccentricity tester is used for carrying out eccentricity test on an object to be tested. The load-bearing device is used for bearing the object to be tested. The eccentricity tester and the load-bearing device are matched in a dismountable way. The eccentricity tester is provided with at least two first clamping structures which are distributed relative to the central axis of the eccentricity tester with equal angles. The load-bearing device is provided with at least two secondclamping structures which are respectively matched with the two first clamping structures so that the load-bearing device can match with the eccentricity tester after rotating a certain angle relative to the eccentricity tester. The eccentricity test device can improve test accuracy.
Description
Technical field
The present invention relates to Accentric detector, particularly a kind of Accentric detector that is used to detect the eccentricity of glasses lens degree.
Background technology
Along with development of multimedia technology, digital camera (sees also Capturing images with digitalstill cameras, Micro, IEEE Volume:18, issue:6, Nov.-Dec.1998Page (s): 14-19), video camera and the mobile phone that has a camera favor by consumers in general more and more, when the quality of image of people's logarithmic code camera, video camera and mobile phone cam shot object proposed requirements at the higher level, logarithmic code camera, video camera and the product consumptions such as mobile phone that have a camera were also increasing.In the first-class camera of digital camera, video camera and cell-phone camera, camera lens is indispensable parts.
Eyeglass is as the vitals in the camera lens, and the image quality of whole camera lens is played critical effect.Eyeglass is after moulding, grinding and polishing, and its optical axis tends to depart from its geometrical central axis, and this phenomenon is called off-centre.The off-centre of eyeglass can be divided into two kinds in theory, and a kind of is the parallel translation with geometric center of optical axis, and another kind is that optical axis intersects with the eyeglass geometric center, and the in fact normally combination of these two kinds of off-centre of the off-centre of eyeglass.
Traditional eccentricity of glasses lens measurement method has multiple, and wherein a kind of eccentricity of glasses lens measurement method at first adopts collimator to measure the first curvature center of eyeglass.Secondly, after rotating the eyeglass certain angle, the central axis of collimator adopt collimator to measure the torsion center of eyeglass again, the center of curvature of the eyeglass when being in diverse location with respect to collimator to measure eyeglass.After converting for how much, can obtain glasses lens eccentricity according to the eyeglass center of curvature of measuring for twice.Yet, adopt the mode of hand rotation eyeglass to rotate eyeglass, not only rotational angle is difficult to determine, that is and, the angle that eyeglass rotates may be 360 °, and first curvature center and torsion center are that eyeglass measures at same position with respect to collimator; And may be because application of force inequality, make the rotation axis of eyeglass depart from the central axis of collimator, that is, the center of curvature of twice measurement and heterogeneous central axis for collimator, thus cause measurement result deviation may occur.
Therefore, be necessary to provide a kind of Accentric detector, with the deviation of eyeglass rotational angle and the skew of center of rotation in the process of the center of curvature of avoiding measuring for twice eyeglass.
Summary of the invention
Below will a kind of Accentric detector be described with embodiment.
The invention provides a kind of Accentric detector, it comprises eccentricity detecting device and bogey.Described eccentricity detecting device is used for examined object is carried out eccentricity detecting.Described bogey is used to carry examined object.Described eccentricity detecting device removably is matched with bogey.Described eccentricity detecting utensil has at least two first snap-in structures, and described at least two first snap-in structures distribute with respect to the central axis equal angles of eccentricity detecting device.Described bogey has at least two second snap-in structures.Described at least two second snap-in structures match with at least two first snap-in structures respectively, so that bogey cooperates after turning an angle with respect to the eccentricity detecting device.
Compared with prior art, the eccentricity detecting device of this Accentric detector and bogey cooperate by at least two first snap-in structures and two second snap-in structures at least, after being turned an angle with respect to the eccentricity detecting device, bogey cooperates, thereby make Accentric detector detect for twice in the center of curvature process of examined object, the angle that object under test rotates accurately and the axis that rotates fix, avoid the deviation of examined object rotational angle and the skew of center of rotation, improved the measurement result accuracy rate.
Description of drawings
Fig. 1 is the decomposing schematic representation of the Accentric detector that provides of the technical program embodiment.
Fig. 2 is first auxiliary section that provides of the technical program embodiment and the combination synoptic diagram of second auxiliary section.
Fig. 3 is the cut-open view of Fig. 2 along the III-III line.
Embodiment
Below in conjunction with accompanying drawing and a plurality of embodiment, the Accentric detector that the technical program is provided is described in further detail.
See also Fig. 1, be the Accentric detector 100 that the technical program first embodiment provides, it comprises eccentricity detecting device 10 and bogey 20.
Bogey 20 comprise supporting part 21 away from first auxiliary section 12, near second auxiliary section 22 of first auxiliary section 12 and be connected in supporting part 21 and second auxiliary section between connecting portion 23.
Supporting part 21 has a loading end 21a away from second auxiliary section 22, and loading end 21a is used for contacting with the carrying examined object with examined object.The external diameter of supporting part 21 can be approximately identical with the external diameter of examined object.In the present embodiment, the external diameter of supporting part 21 is less than the external diameter of second auxiliary section 22, and examined object can be eyeglass.
Second auxiliary section 22 is used for matching with first auxiliary section 12, thereby makes bogey 20 match with eccentricity detecting device 10.As shown in Figures 2 and 3, second auxiliary section 22 comprises that one cooperates sleeve 25 and a cooperation lid 26 that is connected in cooperation sleeve 25, and cooperating sleeve 25 is hollow cylinder, cooperates lid 26 to be connected in and cooperates the end of sleeve 25 near supporting part 21.Cooperate sleeve 25 and cooperate containing cavity 27 of lid 26 common formations.Cooperate lid 26 to have to be used for first surface of contact, 14 contacted second surface of contact, 28, the second surface of contact 28 on have shape and position all with 15 corresponding at least two second snap-in structures 29 of at least two first snap-in structures.In the present embodiment, because first snap-in structure 15 is two grooves, so second snap-in structure 29 correspondingly is two bulge-structures.The angle of the line at adjacent two first snap-in structures and the first surface of contact center is α, just can cooperate behind the integral multiple of described bogey 20 with respect to eccentricity detecting device 10 rotation α.In the present embodiment, the angle α of the line at the center of described two first snap-in structures 15 and first surface of contact 14 is 180 °, bogey 20 and eccentricity detecting device 10 are finished after a position cooperates, must rotate 180 ° integral multiple around the central axis of eccentricity detecting device 10, second snap-in structure 29 could match with first snap-in structure 15 once more, and bogey 20 cooperates with the position that eccentricity detecting device 10 just can have once more.
Because the external diameter of supporting part 21 is less than the external diameter of second auxiliary section 22, in the present embodiment, the external diameter of connecting portion 23 close supporting part 21 parts is less than its external diameter near second auxiliary section, 22 parts.
Bogey 20 has second through hole 24 that connects described supporting part 21, second auxiliary section 22 and connecting portion 23.Second through hole 24 is connected with first through hole 13, be carried on the examined object of supporting part 21 and it is detected so that the light that sends from main part 11 can be successively arrives by first through hole 13 and second through hole 24.Preferably, second through hole 24 is coaxial with first through hole 13, and the aperture of second through hole 24 is less than the aperture of first through hole 13.
When carrying out the off-centre measurement, can adopt following steps with 100 pairs of examined object of above-mentioned Accentric detector:
The first step, with examined object for example eyeglass be positioned over the supporting part 21 of bogey 20.
Second step, the first curvature center of detection eyeglass.Particularly, earlier bogey 20 is aimed at first auxiliary sections 12 and the ccontaining or part in first auxiliary section 12 is placed in the containing cavity 27, first auxiliary section, 12 parts are placed in the containing cavity 27 in the present embodiment.Adjust bogey 20 by rotating again, make second snap-in structure 29 match, thereby make bogey 20 and eccentricity detecting device 10 be positioned at first cooperation position with first snap-in structure 15.Second snap-in structure 29 can make the main part 11 of eccentricity detecting device 10 send detection light with after first snap-in structure 15 cooperates, thereby detects the first curvature center that obtains eyeglass.
The 3rd step, the torsion center of detection eyeglass.Particularly, take off bogey 20 earlier and it is rotated 180 °, again bogey 20 is aimed at first auxiliary section 12 and first auxiliary section 12 is placed in the containing cavity 27 once more, thereby second snap-in structure 29 can match with first snap-in structure 15 once more, thereby makes bogey 20 and eccentricity detecting device 10 be positioned at second cooperation position.At this moment, eyeglass with respect to the proper coaxial rotation in position that detects the first curvature center 180 °, can obtain the torsion center of eyeglasses by the main part 11 of eccentricity detecting device 10.Eccentricity detecting device 10 carries out geometry according to the eyeglass center of curvature of measuring for twice and converts and can obtain glasses lens eccentricity, and preferably, eccentricity detecting device 10 also can connect a display that is used to show testing result.
Be understandable that, when first snap-in structure 15 is three, these three first snap-in structures 15 distribute with respect to the central axis equal angles of eccentricity detecting device 10, the angle α of the line at the center of adjacent two first snap-in structures 15 and first surface of contact 14 is 120 °, bogey 20 and eccentricity detecting device 10 are finished after a position cooperates, must rotate 120 ° integral multiple around the central axis of eccentricity detecting device 10, second snap-in structure 29 could match with first snap-in structure 15 once more.The rest may be inferred, first snap-in structure 15 is N, the angle of the line at adjacent two first snap-in structures 15 and first surface of contact, 14 centers is that α is 360 °/N, bogey 20 and eccentricity detecting device 10 are finished after a position cooperates, (promptly 360 °/N) integral multiple, second snap-in structure 29 could match with first snap-in structure 15 once more must to rotate α around the central axis of eccentricity detecting device 10.
Compared with prior art, the eccentricity detecting device 10 of this Accentric detector 100 and bogey 20 cooperates by at least two first snap-in structures 15 and two second snap-in structures 29 at least, cooperate after making bogey 20 turn an angle with respect to eccentricity detecting device 10, thereby make Accentric detector 100 detect for twice in the center of curvature process of examined object, the angle that object under test rotates accurately and the axis that rotates fix, avoid the deviation of examined object rotational angle and the skew of center of rotation, improved the measurement result accuracy rate.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (9)
1. Accentric detector, it comprises eccentricity detecting device and bogey, described eccentricity detecting device is used for examined object is carried out eccentricity detecting, described bogey is used to carry examined object, described eccentricity detecting device removably is matched with bogey, it is characterized in that, described eccentricity detecting utensil has at least two first snap-in structures, described at least two first snap-in structures distribute with respect to the central axis equal angles of eccentricity detecting device, described bogey has at least two second snap-in structures, described at least two second snap-in structures match with at least two first snap-in structures respectively, so that bogey cooperates after turning an angle with respect to the eccentricity detecting device.
2. Accentric detector as claimed in claim 1 is characterized in that, described first snap-in structure is two, and the central axis of the line of described first snap-in structure and first auxiliary section intersects vertically.
3. Accentric detector as claimed in claim 1, it is characterized in that, described eccentricity detecting device comprises the main part and first auxiliary section that is connected, and described main part is used to send the detection light beam to carry out eccentricity detecting, and described first auxiliary section is used for matching with described bogey.
4. Accentric detector as claimed in claim 3 is characterized in that, described first auxiliary section has first surface of contact, and described at least two first snap-in structures all are positioned at described first surface of contact.
5. Accentric detector as claimed in claim 4 is characterized in that, the angle of the line at adjacent two first snap-in structures and the first surface of contact center is α, cooperates behind the integral multiple of described bogey with respect to eccentricity detecting device rotation α.
6. Accentric detector as claimed in claim 3 is characterized in that, described first auxiliary section has one first through hole, and described bogey has second through hole that is communicated with first through hole, and described first through hole and second through hole are used for passing through for detecting light.
7. Accentric detector as claimed in claim 6 is characterized in that, the axis of the axis of described first through hole and second through hole all with the dead in line of eccentricity detecting device.
8. Accentric detector as claimed in claim 1 is characterized in that, described bogey comprises that a supporting part that is used to carry examined object and one are used for second auxiliary section of matching with described eccentricity detecting device.
9. Accentric detector as claimed in claim 8 is characterized in that, described second auxiliary section has and is used for and contacted second surface of contact of eccentricity detecting device, and described at least two second snap-in structures all are positioned at second surface of contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810303740A CN101650167A (en) | 2008-08-13 | 2008-08-13 | Eccentricity test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810303740A CN101650167A (en) | 2008-08-13 | 2008-08-13 | Eccentricity test device |
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| CN101650167A true CN101650167A (en) | 2010-02-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833320A (en) * | 2015-05-22 | 2015-08-12 | 丹阳丹耀光学有限公司 | Reflection-transmission eccentric instrument test platform and reflection-transmission eccentric instrument |
| CN108982070A (en) * | 2017-06-02 | 2018-12-11 | 全欧光学检测仪器有限公司 | For detecting modulation transfer function and making the equipment of optical system centering |
| CN110196568A (en) * | 2018-02-26 | 2019-09-03 | 宝山钢铁股份有限公司 | The method of driving crawl slab |
| US11340136B2 (en) | 2017-06-02 | 2022-05-24 | Trioptics Gmbh | Apparatus for detecting a modulation transfer function and centering of an optical system |
-
2008
- 2008-08-13 CN CN200810303740A patent/CN101650167A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833320A (en) * | 2015-05-22 | 2015-08-12 | 丹阳丹耀光学有限公司 | Reflection-transmission eccentric instrument test platform and reflection-transmission eccentric instrument |
| CN104833320B (en) * | 2015-05-22 | 2016-05-25 | 丹阳丹耀光学有限公司 | Anti-transmission Eccentric Instrument test platform and anti-transmission Eccentric Instrument |
| CN108982070A (en) * | 2017-06-02 | 2018-12-11 | 全欧光学检测仪器有限公司 | For detecting modulation transfer function and making the equipment of optical system centering |
| CN108982070B (en) * | 2017-06-02 | 2022-03-15 | 全欧光学检测仪器有限公司 | Device for detecting a modulation transfer function and centering an optical system |
| CN114518220A (en) * | 2017-06-02 | 2022-05-20 | 全欧光学检测仪器有限公司 | Device for detecting a modulation transfer function and centering an optical system |
| US11340136B2 (en) | 2017-06-02 | 2022-05-24 | Trioptics Gmbh | Apparatus for detecting a modulation transfer function and centering of an optical system |
| CN110196568A (en) * | 2018-02-26 | 2019-09-03 | 宝山钢铁股份有限公司 | The method of driving crawl slab |
| CN110196568B (en) * | 2018-02-26 | 2022-06-24 | 宝山钢铁股份有限公司 | Method for grabbing plate blank by travelling crane |
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Application publication date: 20100217 |