CN203616521U - Visual-field angle adjusting device - Google Patents
Visual-field angle adjusting device Download PDFInfo
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- CN203616521U CN203616521U CN201320792128.7U CN201320792128U CN203616521U CN 203616521 U CN203616521 U CN 203616521U CN 201320792128 U CN201320792128 U CN 201320792128U CN 203616521 U CN203616521 U CN 203616521U
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- catoptron
- field angle
- angle adjusting
- under test
- adjusting gear
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Abstract
The utility model provides a visual-field angle adjusting device which is used for adjusting the visual-field angle of to-be-measured objects which are shot by an imaging unit. The visual-field angle adjusting device comprises multiple reflectors and multiple reflector supports, wherein the reflectors are respectively mounted on the reflector supports, the attitude and position of each reflector support can be adjusted to change the position and orientation of the reflector thereon, and the to-be-measured objects are respectively placed in front of the refection planes of the reflectors. The position and orientation of the reflector are changed to enable that the mirror image of the to-be-detected surface of the corresponding to-be-detected object in the reflector is just orientated to a lens of the imaging unit. The visual-field angle adjusting device of the utility model can eliminate the visual-field inclination related to position, and detects the front sides of the to-be-detected objects.
Description
Technical field
The utility model relates to field of visual inspection, is specifically related to a kind of field angle adjusting gear for vision-based detection.
Background technology
In field of visual inspection, often adopt imaging device to carry out image taking to examined object, then, captured image and standard picture compared or be presented on display screen for desk checking, if find that difference between captured image and standard picture is excessive or manually judge that article to be detected have difference, will think that examined object is improper product,, for doubtful substandard products, and doubtful substandard products are rejected from product, to it is further checked or is judged.
For the larger examined object of volume, each shooting may can only be taken a sample.But, for the examined object of small volume, need in the time taking, take some samples simultaneously.In the time adopting imaging device to take multiple sample, more easily produce the closer to the sample at picture edge the phenomenon that visual angle tilts, this angle is not wish to produce sometimes.
For example, in field of visual inspection, take the testee of one group of spaced apart, wish that each is to obtain image from positive angle, but due to the existence of above-mentioned edge field angle change phenomenon, it is positive angle that actual conditions only have just that object to camera lens often in picture, other object is more by field of view edge, and angle of inclination, visual field is larger.
Utility model content
For the problems referred to above, the utility model provides a kind of field angle adjusting gear.Field angle adjusting gear of the present utility model can be eliminated the angle of inclination, visual field that above-mentioned position is relevant, and the positive detection to examined object is provided.
Particularly, the utility model provides a kind of field angle adjusting gear, and for adjusting the field angle of the captured object under test of imaging device, described field angle adjusting gear comprises: some catoptrons, some mirror supports,
Wherein, each described catoptron is arranged on a described mirror support;
The attitude of each described mirror support and position can be adjusted, the position of the catoptron of being installed to change on it and orientation;
Before the reflecting surface of each described catoptron, be placed with an object under test, and the position of each described catoptron and the orientation mirror image just camera lens to described imaging device of surface to be detected in corresponding catoptron that makes the corresponding described object under test of each described catoptron.
In a kind of implementation of the present utility model, in described field angle adjusting gear, each described support comprises feathering axis and vertical turning axle.
In another kind of implementation of the present utility model, described catoptron is socketed by bearing and described feathering axis, thereby can be around described feathering axis rotation.
In another kind of implementation of the present utility model, described some catoptrons are in a row with fixed intervals longitudinal arrangement each other, multiple objects under test are arranged on a travelling belt and in a side of described catoptron and are spaced apart from each other with described fixed intervals, and the orientation of described object under test and the orientation of described catoptron are parallel to each other.
In another kind of implementation of the present utility model, for each catoptron, the line at the center on the surface to be measured of the optical center of described imaging device and the line at the center of described catoptron and the center of described catoptron and described object under test is about the normal symmetry of this catoptron.
In another kind of implementation of the present utility model, described field angle adjusting gear also comprises display, described display is connected with described imaging device, receive in real time view data from described imaging device, and described display shows image that described imaging device becomes, to described catoptron is further adjusted according to described image.
Field angle adjusting gear in the utility model can also be used for the article such as the bottle end to vial and detect.
The utility model utilizes reflective mirror can change the principle of viewing field of camera angle, use one group of reflective mirror, adjust the angle of each mirror in this arrangement of mirrors at diverse location, make the shooting effect of the plane to be detected to each object under test all become the just angle to imaging device.
In another kind of implementation, the support top of field angle adjusting gear has the picture frame for catoptron is installed, and picture frame is outwards outstanding with respect to catoptron, to avoid mirror surface by artificially stained as far as possible.
In another kind of implementation, field angle adjusting gear also comprises control device and drive unit, described control device is used for according to position and the orientation of the each catoptron of position calculation of the position of imaging device and object under test, and accessory drive changes position and the orientation of each catoptron.
Adopt after field angle adjusting gear of the present utility model adjusts field angle, imaging device can directly be taken facing to multiple catoptrons.After adopting field angle adjusting gear of the present utility model, in the image of the object under test of shooting, each object under test presents the just attitude to imaging device.
Accompanying drawing explanation
Fig. 1 is according to the vertical view of the object under test in an embodiment of the present utility model;
Fig. 2 is according to the front elevation of the object under test in an embodiment of the present utility model;
Fig. 3 adopts conventional imaging device at the view that does not use object under test taken in field angle adjusting gear situation of the present utility model;
Fig. 4 is according to the support in the field angle adjusting gear of an embodiment of the present utility model and the explanatory view of catoptron;
Fig. 5 is the view while being used in object under test shooting according to the field angle adjusting gear of an embodiment of the present utility model.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, specific embodiment of the utility model is described in detail:
Field angle adjusting gear in the present embodiment is mainly for the situation that adopts single imaging device to take multiple article to be measured simultaneously.
Fig. 1 is the vertical view of one group of object under test in the present embodiment, and this group object under test can be for example multiple medicament capsules.As can be seen from the figure this group object under test placement that is spaced apart from each other.Fig. 2 is the front elevation of this group object under test.
In field of visual inspection, under normal circumstances, be that the front elevation of object under test is detected.For example, in the time that object under test is medicament capsule, may need to detect according to the image of object under test front elevation.Object under test can be placed on estrade, is placed on travelling belt or is placed on other platforms.
But, adopt common visual detection equipment, in the time multiple objects under test being carried out to front elevation shooting and detect, tend to obtain the figure shown in Fig. 3.As can see from Figure 3, the taken pattern of imaging device can not reflect the real front elevation situation of object under test.All there is inclination in object under test to the left and to the right, the degree of inclination depends on the distance with center in image.Here, center refers to the imaging center of imaging device.
So, in embodiment of the present utility model, providing field angle adjusting gear as shown in Figure 4, Fig. 5 shows the application scenario of this device.As shown in Figures 4 and 5, this field angle adjusting gear comprises: some catoptrons 1, some mirror supports 2, before each catoptron, place an object under test 4, and for example, capsule, then utilizes imaging device 3 to take from top.The position of each mirror support and orientation can be adjusted, so that the mirror image of the end face of capsule is just to imaging device.
In Fig. 4, schematically draw 6 catoptrons and 6 mirror supports, each catoptron is arranged on a mirror support.Support below there is base, in this base, embedded a vertical turning axle, rack-mount like this catoptron just can be around this vertical turning axle rotation.In addition, feathering axis is also installed above support, catoptron is socketed by bearing and described feathering axis, thereby can be around described feathering axis rotation.
Or base can be connected with catoptron by some mechanical joints, on each joint, there is screw to step up or hold out against, after completing, angular adjustment can not change guaranteeing.In catoptron group, the translation up and down of each catoptron, also can rotate up and down.
Like this, the attitude of described mirror support just can be adjusted as required, to change the orientation of catoptron.
In the time that the field angle adjusting gear in the utility model is worked, need to use imaging device, for example, CCD camera is taken the object under test of some simultaneously, such as, can take 5 objects under test simultaneously.In the present embodiment, the end face that the surface that need to take is object under test.
For the end face of 5 objects under test is carried out to forward shooting simultaneously, before the reflecting surface of each catoptron of field angle adjusting gear, place an object under test, adjust position and the orientation of corresponding catoptron for each object under test, thereby the mirror image just camera lens to imaging device of the surface to be detected that makes the corresponding object under test of each catoptron in corresponding catoptron, like this, imaging device is equivalent to the mirror image of object under test to take, so taken all objects under test are all equivalent to take from object under test is positive.
From Fig. 4 and Fig. 5, can find out, in the present embodiment, the catoptron of field angle adjusting gear is in a row with certain interval longitudinal arrangement each other, and each catoptron is arranged on a mirror support.Although only drawn 6 mirror supports and 6 catoptrons in figure, it should be appreciated by those skilled in the art that and can comprise more catoptron and mirror support.
It can also be seen that before each catoptron and placing an object under test from Fig. 4, this object under test is medicament capsule.In figure, do not draw the support to capsule, capsule can be placed on conveyer, in support platform or on other stilts.Object under test it should be appreciated by those skilled in the art that the present invention is mainly for field angle adjusting gear, as long as can be placed on field angle adjusting gear of the present invention before.
For example, can multiple objects under test are arranged on a travelling belt and be placed on a side of catoptron, the direction of travelling belt be parallel with the orientation of catoptron.Then, make travelling belt stepping and move forward, the distance of each reach equals the integral multiple at two intervals between catoptron.Like this, if all place an object under test before the each catoptron of original state,, along with the stepping reach of travelling belt, follow-up object under test also can rest on before corresponding catoptron, the position that object under test above stops.
Particularly, for each described catoptron, for example, in order to guarantee the mirror image subtend imaging device better of plane to be detected (end face) of the object under test before this catoptron, can take facing to catoptron.Meanwhile, need to guarantee to there is certain position relationship between the camera lens of catoptron, object under test and described imaging device.Particularly, preferably, for each catoptron, the line at the center on the surface to be measured of the optical center of described imaging device and the line at the center of described catoptron and the center of described catoptron and described object under test is about the normal symmetry of this catoptron.
In other words, need the position of the position of object under test and the camera lens of imaging device substantially symmetrical about the normal direction of catoptron.
Field angle adjusting gear in the utility model can also comprise display, described display is connected with described imaging device, receive in real time view data from described imaging device, and described display shows image that described imaging device becomes, to described catoptron is further adjusted according to described image.
In another embodiment, field angle adjusting gear comprises some prisms, and in order to substitute above-mentioned catoptron, each prism is arranged on a prism bracket.This embodiment also can reach identical effect, just adopts prism to replace catoptron more durable.
It should be noted that, that in the utility model, mentions was placed with an object under test before the reflecting surface of each catoptron, be not to limit object under test will be fixed on before catoptron, but say, in the time that catoptron is worked, a determinand cognition is just passed through or is just positioned at before corresponding catoptron, and object under test can be the object under test of lasting or intermittent exercise.
It should be noted that; the shape of all parts in accompanying drawing of the present utility model is all schematic; there is some difference not get rid of itself and its true shape; accompanying drawing is only for principle of the present utility model is described, and the detail of parts shown in figure is the restriction to utility model protection scope not.Those skilled in the art also should be appreciated that, above-described embodiment is only also the explanation to schematic implementation of the present utility model, the restriction that not the utility model is comprised to scope.
Claims (7)
1. a field angle adjusting gear, for adjusting the field angle of the captured object under test of imaging device, is characterized in that, described field angle adjusting gear comprises: some catoptrons, some mirror supports,
Wherein, each described catoptron is arranged on a described mirror support;
The attitude of each described mirror support and position can be adjusted, the position of the catoptron of being installed to change on it and orientation;
Before the reflecting surface of each described catoptron, be placed with an object under test, and the position of each described catoptron and the orientation mirror image just camera lens to described imaging device of surface to be detected in corresponding catoptron that makes the corresponding described object under test of each described catoptron.
2. field angle adjusting gear according to claim 1, is characterized in that, each described support comprises feathering axis and vertical turning axle.
3. field angle adjusting gear according to claim 2, is characterized in that, described catoptron is socketed by bearing and described feathering axis, thereby can be around described feathering axis rotation.
4. field angle adjusting gear according to claim 1, it is characterized in that, described some catoptrons are in a row with fixed intervals longitudinal arrangement each other, multiple objects under test are arranged on a conveyer and in a side of described catoptron and are spaced apart from each other with described fixed intervals, and the orientation of described object under test and the orientation of described catoptron are parallel to each other.
5. field angle adjusting gear according to claim 1, it is characterized in that, for each catoptron, the line at the center on the surface to be measured of the optical center of described imaging device and the line at the center of described catoptron and the center of described catoptron and described object under test is about the normal symmetry of this catoptron.
6. field angle adjusting gear according to claim 1, it is characterized in that, described field angle adjusting gear also comprises display, described display is connected with described imaging device, receive in real time view data from described imaging device, and described display shows image that described imaging device becomes, to described catoptron is further adjusted according to described image.
7. field angle adjusting gear according to claim 1, it is characterized in that, described field angle adjusting gear also comprises control device and drive unit, described control device is according to position and the orientation of the each described catoptron of position calculation of the position of imaging device and object under test, and position and the orientation of the each described catoptron of the corresponding change of accessory drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320792128.7U CN203616521U (en) | 2013-12-04 | 2013-12-04 | Visual-field angle adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320792128.7U CN203616521U (en) | 2013-12-04 | 2013-12-04 | Visual-field angle adjusting device |
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| CN203616521U true CN203616521U (en) | 2014-05-28 |
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| CN201320792128.7U Expired - Fee Related CN203616521U (en) | 2013-12-04 | 2013-12-04 | Visual-field angle adjusting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087067A (en) * | 2019-05-20 | 2019-08-02 | 奥普特视觉科技(苏州)有限公司 | A kind of multi-channel image detection device and its application method based on coaxial light source |
| CN110186651A (en) * | 2018-02-23 | 2019-08-30 | 宁波舜宇车载光学技术有限公司 | MTF test equipment for camera lens |
-
2013
- 2013-12-04 CN CN201320792128.7U patent/CN203616521U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186651A (en) * | 2018-02-23 | 2019-08-30 | 宁波舜宇车载光学技术有限公司 | MTF test equipment for camera lens |
| CN110087067A (en) * | 2019-05-20 | 2019-08-02 | 奥普特视觉科技(苏州)有限公司 | A kind of multi-channel image detection device and its application method based on coaxial light source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20201204 |