CN103269411A - Scanning imaging device - Google Patents
Scanning imaging device Download PDFInfo
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- CN103269411A CN103269411A CN2013101288844A CN201310128884A CN103269411A CN 103269411 A CN103269411 A CN 103269411A CN 2013101288844 A CN2013101288844 A CN 2013101288844A CN 201310128884 A CN201310128884 A CN 201310128884A CN 103269411 A CN103269411 A CN 103269411A
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- ellipsoid
- scanning mirror
- imageable target
- probe unit
- imaging
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Abstract
The invention discloses a scanning imaging device. A part of an ellipsoid face is selected to be used as an ellipsoid scanning mirror, an imaging object is placed at a first focal point of an ellipsoid, and a receiving face of a detecting unit is placed at a second focal point, so that when the ellipsoid scanning mirror scans the imaging object, radiation light of the imaging object is finally gathered at the second focal point, i.e. the receiving face of the detecting unit, the problems of convergence point offset and the like caused by rotation of the ellipsoid scanning mirror or the vibration of a system can be solved, and the imaging stability and the imaging quality are improved; and the ellipsoid scanning mirror is selected on a specific position on the ellipsoid, so that an incident angle of a light wave radiated from an object plane of the imaging object entering into the receiving face of the detecting unit after the light wave is reflected through the ellipsoid scanning mirror is as small as possible, aberration of the ellipsoid scanning mirror selected according to the principle that aberration of a vertical incidence light wave is the smallest is as small as possible, and the aim of further improving image quality is achieved.
Description
Technical field
The present invention relates to the optical device designs field, be specifically related to a kind of scanned imagery device based on the ellipsoid scanning mirror.
Background technology
At present, in the reflective scanning mode imaging, practices well is to adopt the one dimension of reflecting surface or two dimensional motion to realize being imaged the scanning imagery of target, but the drawback of this method is a lot, on the one hand, the driving mechanism more complicated of one dimension or two dimensional motion, size are bigger, in order to realize higher scanning accuracy and stability, need to adopt high-precision one dimension or two dimensional motion driving mechanism, then cost can improve greatly; On the other hand, under the prerequisite that guarantees stability and image quality, driving mechanism can not be realized quick scanning, then can prolong imaging time; The conical scanning realization of employing single scanning mirror is also arranged to the method for measured target scanning imagery, if but rotary driver generation vibrations can cause the imaging focal shift, reduce image quality greatly.
Summary of the invention
In view of this, the invention provides a kind of scanned imagery device, can guarantee under imaging system generation shock conditions, to be held in the stability of picture point, improve the scanning imagery quality thus.
A kind of scanned imagery device of the present invention comprises imageable target, probe unit and ellipsoid scanning mirror, and wherein, described ellipsoid scanning mirror places the place ahead of imageable target object plane; One of them focus of described ellipsoid scanning mirror place ellipsoid is positioned on the object plane of described imageable target, and another focus of described ellipsoid is on the receiving plane of probe unit; Keep described imageable target and described probe unit transfixion, described ellipsoid scanning mirror can rotate around the axis; Described another focus and parallel with the object plane of imageable target is crossed in described rotating shaft.
Described ellipsoid scanning mirror satisfies at selected part on the ellipsoid: the incidence angle of receiving plane that incides probe unit from the object plane radiation light-wave of imageable target after the reflection of ellipsoid scanning mirror is as far as possible little.
The geometric center of described ellipsoid scanning mirror is crossed in described rotating shaft.
Described rotating shaft is vertical with the reference level face.
The present invention has following beneficial effect:
1) the present invention passes through to select the part of ellipsoid as the ellipsoid scanning mirror, and imageable target is placed the first focus place of ellipsoid, the receiving plane of probe unit is placed the second focus place, then when the ellipsoid scanning mirror scans imageable target, finally the radius of imageable target can be converged at the second focus place, be on the receiving plane of probe unit, and can not rotate or its place system vibrations cause problems such as convergent point skew because of the ellipsoid scanning mirror, improve imaging stability and image quality thus;
2) choose the ellipsoid scanning mirror by the ad-hoc location on ellipsoid, can make that to incide the incidence angle of receiving plane of probe unit from the object plane radiation light-wave of imageable target after the reflection of ellipsoid scanning mirror as far as possible little, principle according to the aberration minimum of vertical incidence light wave, then the aberration of the ellipsoid scanning mirror of choosing through above-mentioned selection principle is as far as possible little, reaches the purpose of further raising image quality;
3) among the present invention, when the geometric center of ellipsoid scanning mirror is crossed in rotating shaft, can make the incidence angle minimum that incides the receiving plane of probe unit from the object plane radiation light-wave of imageable target after the reflection of ellipsoid scanning mirror, then Ci Shi image quality reaches the best;
4) when rotating shaft is vertical with horizontal plane, the first focus O of ellipsoid
1In horizontal plane, rotate, then device of the present invention carries out the scanning of horizontal line direction to imageable target, than rotating shaft the scheme (namely imageable target being carried out the scanning of any direction) of any direction that is parallel to the imageable target object plane, simplify the data handling procedure of image, improved the time of scanning imagery.
Description of drawings
Fig. 1 is the end view of the surface sweeping imaging schematic diagram of ellipsoid scanning mirror of the present invention.
Fig. 2 is the vertical view of the surface sweeping imaging schematic diagram of ellipsoid scanning mirror of the present invention.
Wherein, 1-imageable target, 2-ellipsoid scanning mirror, 3-probe unit, 4-rotating shaft.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
The invention provides a kind of scanned imagery device, as depicted in figs. 1 and 2, comprise imageable target 1, probe unit 3 and ellipsoid scanning mirror 2, wherein, ellipsoid scanning mirror 2 is positioned at object plane the place ahead of imageable target 1, and one of them focus of ellipsoid scanning mirror 2 place ellipsoids (is defined as the first focus O
1) on the object plane of imageable target 1, another focus of ellipsoid (is defined as the second focus O
2) on the receiving plane of probe unit 3; Keep imageable target 1 and described probe unit 3 transfixions, ellipsoid scanning mirror 2 can 4 rotate around the shaft; The second focus O is crossed in rotating shaft 4
2And vertical with the reference level face, this reference level face refers to the plane vertical with imageable target 1.
According to the geometric properties of ellipsoid as can be known, light is from the first focus O
1Send after any point reflection on the ellipsoid, with the second focus O that assembles in ellipsoid
2On, ellipsoid scanning mirror 2 is as the part of ellipsoid, then as the first focus O
1On imageable target 1 radiation light-wave to the reflecting surface of ellipsoid scanning mirror 2 time, namely can be converged to the second focus O
2On the receiving plane of probe unit 3 on, and can not rotate or its place system vibrations cause problems such as convergent point skew because of ellipsoid scanning mirror 2, improve imaging stability and image quality thus.
When ellipsoid scanning mirror 24 rotations around the shaft, because the direction of rotating shaft 4 was the second focus O
2And on any direction vertical with major axis, so when it rotates, be equivalent to ellipsoid 4 rotations around the shaft together at its place, the second focus O
2Keep motionless, i.e. it is motionless that the convergence of rays point of imaging target 1 keeps; And the first focus O
1Rotate thereupon, because the direction of rotating shaft 4 is in the vertical arbitrariness of major axis, the first focus O
1Mobile at object plane along any direction, be equivalent to ellipsoid scanning mirror 2 in the enterprising line scanning of any direction of object plane, the reflecting surface of final ellipsoid scanning mirror 2 will be finished one-dimensional scanning to the object plane of imageable target 1, so, ellipsoid scanning mirror 2 of the present invention can not influence image quality because of disturbing factors such as vibrations.
Among the present invention, the size of ellipsoid scanning mirror 2 satisfies: the light wave that does not block imageable target 1 radiation.
In such scheme, as shown in Figure 2, if the position that ellipsoid scanning mirror 2 is chosen is near the object plane of imageable target 1, it is less that then the object plane of imageable target 1 is radiated the incidence angle of light of reflecting surface of ellipsoid scanning mirror 2, but it is just very big with respect to the incidence angle of the vertical direction of the receiving plane of probe unit 3 from the light of ellipsoid scanning mirror 2 outgoing, principle according to the aberration minimum of vertical incidence light wave, ellipsoid scanning mirror 2 of the present invention satisfies at selected part on the ellipsoid: in the scanning area that guarantees ellipsoid scanning mirror 2 enough under the big prerequisite, the incidence angle of receiving plane that incides probe unit 3 from the object plane radiation light-wave of imageable target 1 after ellipsoid scanning mirror 2 reflects is as far as possible little.
In order to make the incidence angle minimum that after 2 reflections of ellipsoid scanning mirror, incides the receiving plane of probe unit 3 from the object plane radiation light-wave of imageable target 1, the geometric center of ellipsoid scanning mirror 2 is crossed in rotating shaft 4, at this moment, under the certain situation of ellipsoid scanning mirror 2 sizes, light reflects from the ellipsoid of rotating shaft 4 both sides, converges to the second focus O
2Reflection ray near rotating shaft 4, then the incidence angle minimum can obtain best reception.
Generally, utilize device of the present invention that imageable target 1 is carried out been scanned after, can handle the view data that probe unit 3 is collected, and further in computer, carry out image and show, be convenient to observe image.Because the rotating shaft 4 among the present invention has a lot of directions, the view data that causes probe unit 3 of the present invention to detect is the data in a lot of directions in object plane upper edge (with respect to horizontal direction), in order to observe conveniently, in subsequent image processing, to convert view data to the horizontal line direction and carry out the image demonstration, will increase complexity and time that image is handled.Therefore, the present invention is designed to the direction vertical with the reference level face with the direction of rotating shaft 4, then when ellipsoid scanning mirror 2 is rotated, and the first focus O
1Rotate along the horizontal plane direction, be equivalent to the view data that this device directly obtains horizontal direction, therefore simplify the subsequent image processing process, saved the time.
In sum, more than be preferred embodiment of the present invention only, be not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a scanned imagery device is characterized in that, comprises imageable target (1), probe unit (3) and ellipsoid scanning mirror (2), and wherein, described ellipsoid scanning mirror (2) places the place ahead of imageable target (1) object plane; One of them focus of described ellipsoid scanning mirror (2) place ellipsoid is positioned on the object plane of described imageable target (1), and another focus of described ellipsoid is on the receiving plane of probe unit (3); Keep described imageable target (1) and described probe unit (3) transfixion, described ellipsoid scanning mirror (2) (4) around the shaft rotates; Described another focus and parallel with the object plane of imageable target (1) is crossed in described rotating shaft (4).
2. a kind of scanned imagery device as claimed in claim 1, it is characterized in that described ellipsoid scanning mirror (2) satisfies at selected part on the ellipsoid: the incidence angle of receiving plane that incides probe unit (3) from the object plane radiation light-wave of imageable target (1) after ellipsoid scanning mirror (2) reflection is as far as possible little.
3. a kind of scanned imagery device as claimed in claim 2 is characterized in that, the geometric center of described ellipsoid scanning mirror (2) is crossed in described rotating shaft (4).
4. as claim 1,2 or 3 described a kind of scanned imagery devices, it is characterized in that described rotating shaft (4) is vertical with the reference level face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310128884.4A CN103269411B (en) | 2013-04-15 | 2013-04-15 | Scanning imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310128884.4A CN103269411B (en) | 2013-04-15 | 2013-04-15 | Scanning imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103269411A true CN103269411A (en) | 2013-08-28 |
| CN103269411B CN103269411B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310128884.4A Expired - Fee Related CN103269411B (en) | 2013-04-15 | 2013-04-15 | Scanning imaging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645560A (en) * | 2013-12-06 | 2014-03-19 | 吉林大学 | High-speed optical scanning display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005251583A (en) * | 2004-03-04 | 2005-09-15 | Ricoh Co Ltd | Lighting system, optical modulator, image display unit, and scanner |
| CN2743853Y (en) * | 2004-10-15 | 2005-11-30 | 中国科学院长春光学精密机械与物理研究所 | Mirror type light source system |
| CN101032388A (en) * | 2007-04-13 | 2007-09-12 | 清华大学 | Optical coherence tomography endoscopic imaging system |
| CN102023144A (en) * | 2010-09-29 | 2011-04-20 | 首都师范大学 | Reflective terahertz (THz) wave real-time imaging scanning device |
| CN102723993A (en) * | 2012-05-25 | 2012-10-10 | 中国科学院高能物理研究所 | Data transmission device based on rotating ellipsoid reflection in computer tomography imaging equipment |
-
2013
- 2013-04-15 CN CN201310128884.4A patent/CN103269411B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005251583A (en) * | 2004-03-04 | 2005-09-15 | Ricoh Co Ltd | Lighting system, optical modulator, image display unit, and scanner |
| CN2743853Y (en) * | 2004-10-15 | 2005-11-30 | 中国科学院长春光学精密机械与物理研究所 | Mirror type light source system |
| CN101032388A (en) * | 2007-04-13 | 2007-09-12 | 清华大学 | Optical coherence tomography endoscopic imaging system |
| CN102023144A (en) * | 2010-09-29 | 2011-04-20 | 首都师范大学 | Reflective terahertz (THz) wave real-time imaging scanning device |
| CN102723993A (en) * | 2012-05-25 | 2012-10-10 | 中国科学院高能物理研究所 | Data transmission device based on rotating ellipsoid reflection in computer tomography imaging equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645560A (en) * | 2013-12-06 | 2014-03-19 | 吉林大学 | High-speed optical scanning display device |
| CN103645560B (en) * | 2013-12-06 | 2015-09-09 | 吉林大学 | A kind of high-speed light scanning display apparatus |
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| CN103269411B (en) | 2015-07-22 |
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