CN1121017C - Method and device for regulating photoelectric module of scanner - Google Patents
Method and device for regulating photoelectric module of scanner Download PDFInfo
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- CN1121017C CN1121017C CN 99106257 CN99106257A CN1121017C CN 1121017 C CN1121017 C CN 1121017C CN 99106257 CN99106257 CN 99106257 CN 99106257 A CN99106257 A CN 99106257A CN 1121017 C CN1121017 C CN 1121017C
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- scanner
- charge coupled
- coupled cell
- photoelectricity module
- reference pattern
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 title abstract 3
- 230000005622 photoelectricity Effects 0.000 claims description 37
- 230000001186 cumulative effect Effects 0.000 claims description 9
- 238000010408 sweeping Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 2
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Abstract
In a method for regulating photoelectric modules of scanners, reference patterns are projected to a charge coupling element by a lens to make the charge coupling element generate a corresponding image signal; the lens and the charge coupling element are regulated in each direction according to the image signal for improving resolution and an amplification ratio. The present invention is characterized in that both sides of the scanning width of each reference pattern are respectively provided with mutually symmetrical area blocks used, wherein the of the width area blocks are increasing/decrescent; each area block has a side edge vertical with a scanning direction and is used for determining the boundary and the horizontality of a photoelectric module of a scanner; two groups of line patterns which are respectively vertical and oblique with the scanning direction are arranged in the scanning widths of the reference patterns; the line patterns are used for determining the resolution of the photoelectric module of the scanner along the scanning direction and the direction vertical with the scanning direction.
Description
Technical field
The method of adjustment and the device of the relevant a kind of scanner photoelectricity module of the present invention, particularly relevant a kind of by changing the method that reference pattern helps adjusting scanner photoelectricity module (lens and charge coupled cell) position and resolution.
Background technology
To No. the 316969th, Taiwan patent shown in Figure 4, adjust the charge coupled cell of scanner module and the method and system of camera lens referring to Fig. 1.
In Fig. 1, when adjusting the position of camera lens 30 and charge coupled cell 20, scanner module 22 at first is located at one and adjusts on the assembly platform 24.Charge coupled cell 20 is installed in scanner module 22 the place aheads by anchor clamps 28, as shown in Figure 2.28 of anchor clamps can carry out the rotation of moving of X, Y both direction and θ direction.Scanner module 22 also comprises in addition: lamp source 39, and reflecting optics 31,33,35, and camera lens 30, as shown in Figure 3.
Reference pattern referring to adjustment location usefulness shown in Figure 4.Wherein, triangle pattern 42,45 is used to judge the horizontality of charge coupled cell, and both sides straight line 40 is used to judge the scanning boundary of charge coupled cell, and parallel lines 44 is not used to judge the resolution (MTF) of scanner optics module 22 along the direction of scanning.
Referring to the picture signal of charge coupled cell shown in Figure 5 20 according to above-mentioned reference pattern gained.Wherein, X is corresponding to the distance of origin of coordinate to left side straight line 40, and y1 and y2 are corresponding to the intercept of triangle 42,45 and sweep trace, and f is then corresponding to parallel lines 44.When X was excessive or too small, therefore the sweep limit central authorities that the expression reference pattern is not projeced into charge coupled cell 20 must adjust charge coupled cell 20 along directions X.When the mean value of y1 and y2 was excessive or too small, the position of expression charge coupled cell 20 scan reference patterns crossed that low or too high (when scanning position was higher, the intercept of triangle 42,45 and sweep trace can increase; Otherwise when scanning position was on the low side, the intercept of triangle 42,45 and sweep trace then can reduce), therefore must adjust charge coupled cell 20 along the Y direction.And when y1 ≠ y2, then represent charge coupled cell 20 be obliquely the scan reference pattern (when inclining scanning line, triangle 42,45 can scan top, bottom or bottom, top respectively, its corresponding intercept is not waited), therefore must adjust charge coupled cell 20 along the θ direction, make it recover horizontality.
In addition, in this example, resolution (MTF) also can obtain according to the f signal of reference pattern.But, because resolution is to show with absolute value, and can only adjust the floor level value of directions X.Therefore, when the best resolution of directions X and Y direction does not appear at same position, the phenomenon that the directions X resolution is good with causing, Y direction resolution is bad or directions X is bad, the Y direction is good.Moreover respectively decision boundary and horizontality are cumbersome with two kinds of patterns (straight line and triangle), and also make the mistake easily with the straight line decision boundary.
Summary of the invention
Fundamental purpose of the present invention provides a kind of method of adjustment of scanner photoelectricity module, comprise one in the reference pattern of its use simultaneously and favour the line image of direction of scanning perpendicular to the line image and of direction of scanning, therefore, no matter be that the respective signal that the resolution of directions X or Y direction all can be produced by charge coupled cell simultaneously be read, and cooperate the resolution summation of adjusting X, Y direction to the floor level value, obtain best resolution by this.Moreover the present invention also can merge the straight line and the triangle pattern of reference pattern, therefore can utilize same pattern to obtain the scanning boundary and the horizontality of charge coupled cell, and avoid because of the meticulous misread phenomenon that causes of straight line.
Another object of the present invention provides a kind of adjusting gear of scanner photoelectricity module, wherein, reference pattern is provided with the straight-line pattern of a vertical scanning direction and the oblique line pattern of a dip sweeping direction in sweep length, and, being respectively equipped with a block in the inboard of sweep length, its width is cumulative/and subtract, be mutually symmetrical and have the side of a vertical scanning direction.Reference pattern then via the lens projects of scanner photoelectricity module to charge coupled cell, and make charge coupled cell produce the picture intelligence of a correspondence.Drive unit is then adjusted the position and the resolution of lens and charge coupled cell according to picture intelligence.
The method of adjustment of scanner photoelectricity module of the present invention is achieved in that wherein, this scanner photoelectricity module has lens and a charge coupled cell, one reference pattern then through this lens projects to this charge coupled cell, the picture signal that makes this charge coupled cell produce a correspondence is also adjusted in view of the above, the method is characterized in that: this reference pattern is provided with one first lines group and one second lines group, vertical respectively and favour the direction of scanning of this scanner photoelectricity module, be used to judge that this scanner photoelectricity module is along the direction of scanning and the resolution of vertical scanning direction; And the inboard of the corresponding sweep length of this reference pattern be respectively equipped with a width cumulative/block that subtracts, it is symmetry and the side of a vertical scanning direction is respectively arranged mutually, is used to judge the border and the horizontality of this scanner photoelectricity module.
Wherein, this width is cumulative/and the block that subtracts is a right angle delta piece, the direction of scanning of vertical this scanner photoelectricity module of a side at its right angle.
The adjusting gear of scanner photoelectricity module of the present invention is achieved in that it includes: a reference pattern is provided with the straight-line pattern of a vertical scanning direction and the oblique line pattern of a dip sweeping direction in sweep length; And, being respectively equipped with a block in the inboard of sweep length, its width is cumulative/and subtract, be mutually symmetrical and have the side of a vertical scanning direction; One scan device photoelectricity module, it has lens, a charge coupled cell, and this reference pattern to this charge coupled cell, and makes this charge coupled cell produce the picture signal of a correspondence via this lens projects; And a drive unit, according to this picture signal to adjust these lens and this charge coupled cell.
Wherein, this block is a right angle triangle pattern.
In the method for adjustment of scanner photoelectricity module, reference pattern be via lens projects to charge coupled cell, make charge coupled cell produce corresponding picture signal.Lens and charge coupled cell then carry out the adjustment of all directions according to above-mentioned picture signal, use and improve resolution (MTF) and magnification.Characteristics of the present invention then are to be respectively equipped with a block in the inboard of the sweep length of reference pattern, and in sweep length, be provided with two groups of line images, two groups of line images are vertical respectively and favour the direction of scanning, can judge simultaneously that therefore scanner photoelectricity module is in the direction of scanning and the resolution of vertical scanning direction (MTF).Two blocks (as right-angle triangle) then be width cumulative/subtract, mutual symmetry and have the side of a vertical scanning direction respectively, can judge the border and the horizontality of scanner photoelectricity module simultaneously, and avoid the phenomenon of straight line erroneous judgement.
Description of drawings
Fig. 1 is in the Adjustment System of the scanner mould knob of use now, the relativeness figure of charge coupled cell and support body;
Fig. 2 and Fig. 3 are in the Adjustment System of the scanner module of use now, the relativeness figure of anchor clamps, lens and support body;
Fig. 4 is the reference pattern that the Adjustment System of the scanner module of use is now used;
Fig. 5 is charge coupled cell resulting picture signal figure behind the reference pattern of input Fig. 4 of the scanner module of use now;
Fig. 6 is the reference pattern figure that uses in the method for adjustment of scanner photoelectricity module of the present invention;
Fig. 7 is another reference pattern figure that uses in the method for adjustment of scanner photoelectricity module of the present invention;
Fig. 8 is in the method for adjustment of scanner photoelectricity module of the present invention, and charge coupled cell is according to the resulting picture signal figure of the reference pattern of Fig. 6 and Fig. 7.
Embodiment
In the method for adjustment referring to scanner photoelectricity module of the present invention shown in Figure 6, in order to the reference pattern of scanning location.Wherein, scanning boundary is a point and b point, and sweep limit is then between a point and b point.Reference pattern is respectively equipped with a right angle triangle 50,52 in the inboard of sweep length, it is mutually symmetrical and has the side of a vertical scanning direction L respectively; Then be provided with a straight-line pattern 54 and an oblique line pattern 56 in the sweep length.Fig. 7 then is in the method for adjustment of scanner photoelectricity module of the present invention, in order to the another kind of reference pattern of scanning location.Wherein, right-angle triangle 50 ', 52 ' be each other back to, rather than face with each other as shown in Figure 6.
When reference pattern via the lens projects of scanner photoelectricity module during to charge coupled cell, charge coupled cell can produce the reference pattern of a correspondence.Fig. 8 then is in the method for adjustment of scanner photoelectricity module of the present invention, and charge coupled cell is according to the resulting picture signal of the reference pattern of Fig. 6 and Fig. 7.Wherein, picture signal X1 length is corresponding to the triangle 50 of sweep trace L and reference pattern, 50 ' intercept; X2 length is corresponding to the triangle 52 of sweep trace L and reference pattern, 52 ' intercept; The straight-line pattern 54 of vertical scanning direction in the corresponding reference pattern in Y1 zone; The oblique line pattern 56 of then corresponding reference pattern medium dip direction of scanning, Y2 zone.Subsequently, lens and charge coupled cell are just adjusted according to the picture signal of output.
At first, adjust charge coupled cell, make the picture signal of reference pattern correspondence be positioned at the sweep limit of charge coupled cell.In this example, because reference pattern is respectively equipped with a right angle triangle pattern 50 (50 '), 52 (52 ') at scanning boundary (a point, b point), it is mutually symmetrical and has the side of a vertical scanning direction, so the adjustment situation of charge coupled cell along continuous straight runs (being directions X) can directly be obtained by right-angle triangle pattern 50 (50 '), 52 (52 ') corresponding position in picture signal.If picture signal is not arranged in the sweep limit (between a point and the b point) of charge coupled cell, then charge coupled cell need carry out the adjustment of horizontal direction.Otherwise then the presentation video signal has been arranged in the sweep limit of charge coupled cell.
Then, adjust the horizontality of charge coupled cell, triangle pattern 50 (50), 52 (52 ') is equated with intercept x1, the x2 of sweep trace L, or make difference between x1, the x2 less than an acceptable error amount Δ X.If triangle pattern 50 (50), 52 (52 ') equates with intercept x1, the x2 of sweep trace L, or difference therebetween is greater than error amount Δ X, and then charge coupled cell must carry out the adjustment of degree of tilt.Otherwise oneself is in horizontality then to represent charge coupled cell.
Then, adjust lens, make the resolution (MTF) of directions X and Y direction obtain optimal balance point along optical axis (Z direction).In the method for prior art, resolution is with absolute value representation, and it is adjusted result badly and can only adjust the floor level standard.Therefore, the present invention is provided with the straight-line pattern 54 of vertical scanning direction and the oblique line pattern 56 of dip sweeping direction in reference pattern, uses the resolution (MTF) that obtains directions X and Y direction simultaneously, and adjusts optimal balance point.The acquisition methods of optimal balance point is: the resolution convergence that can adjust lens along optical axis, makes directions X and Y direction is consistent and obtain.
In addition, use above-mentioned method of adjustment, the present invention also can provide a kind of adjusting gear of scanner photoelectricity module.Wherein, reference pattern is provided with the straight-line pattern of a vertical scanning direction and the oblique line pattern of a dip sweeping direction in sweep length, and, being respectively equipped with a block in the inboard of sweep length, its width is cumulative/and subtract, be mutually symmetrical and have the side of a vertical scanning direction.Reference pattern to charge coupled cell, and makes charge coupled cell produce the picture signal of a correspondence via the lens projects of scanner photoelectricity module.Drive unit is then adjusted the position and the resolution of lens and charge coupled cell according to picture signal.In this example, the adjustment of charge coupled cell and lens can be finished by any way, as: motor-driven or manual or the like.The method of adjusting is then as above-mentioned, so repeat no more.
In a word, in the method for adjustment of scanner photoelectricity module of the present invention, because comprising one simultaneously, reference pattern favours the line image of direction of scanning perpendicular to the line image and of direction of scanning, therefore, no matter be that the respective signal that the resolution of directions X or Y direction all can be produced by charge coupled cell 20 simultaneously be read, and cooperate the resolution summation of adjusting X, Y direction to the floor level value, use obtaining best resolution.In addition, the present invention merges the straight line and the triangle pattern of reference pattern in the past, also can obtain the scanning boundary and the horizontality of charge coupled cell simultaneously and avoids because of the meticulous misread phenomenon that causes of straight line.
Claims (4)
1. the method for adjustment of a scanner photoelectricity module, wherein, this scanner photoelectricity module has lens and a charge coupled cell, one reference pattern then through this lens projects to this charge coupled cell, the picture signal that makes this charge coupled cell produce a correspondence is also adjusted in view of the above, the method is characterized in that: this reference pattern is provided with one first lines group and one second lines group, vertical respectively and favour the direction of scanning of this scanner photoelectricity module, be used to judge that this scanner photoelectricity module is along the direction of scanning and the resolution of vertical scanning direction; And the inboard of the corresponding sweep length of this reference pattern be respectively equipped with a width cumulative/block that subtracts, it is symmetry and the side of a vertical scanning direction is respectively arranged mutually, is used to judge the border and the horizontality of this scanner photoelectricity module.
2. the method for adjustment of scanner photoelectricity module as claimed in claim 1 is characterized in that: and wherein, this width is cumulative/and the block that subtracts is a right angle delta piece, the direction of scanning of vertical this scanner photoelectricity module of a side at its right angle.
3. the adjusting gear of a scanner photoelectricity module, it is characterized in that: include: a reference pattern is provided with the straight-line pattern of a vertical scanning direction and the oblique line pattern of a dip sweeping direction in sweep length; And, being respectively equipped with a block in the sweep length inboard, its width is cumulative/and subtract, be mutually symmetrical and have the side of a vertical scanning direction; One scan device photoelectricity module, it has lens, a charge coupled cell, and this reference pattern to this charge coupled cell, and makes this charge coupled cell produce the picture signal of a correspondence via this lens projects; And a drive unit, according to this picture signal to adjust these lens and this charge coupled cell.
4. the adjusting gear of scanner photoelectricity module as claimed in claim 3 is characterized in that: wherein, this block is a right angle triangle pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99106257 CN1121017C (en) | 1999-05-12 | 1999-05-12 | Method and device for regulating photoelectric module of scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99106257 CN1121017C (en) | 1999-05-12 | 1999-05-12 | Method and device for regulating photoelectric module of scanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1274134A CN1274134A (en) | 2000-11-22 |
| CN1121017C true CN1121017C (en) | 2003-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99106257 Expired - Fee Related CN1121017C (en) | 1999-05-12 | 1999-05-12 | Method and device for regulating photoelectric module of scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1121017C (en) |
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1999
- 1999-05-12 CN CN 99106257 patent/CN1121017C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1274134A (en) | 2000-11-22 |
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Owner name: YUDONG OPTICAL CO., LTD. Free format text: FORMER OWNER: HONGYOU SCIENCE AND TECHNOLOGY CO LTD Effective date: 20070112 |
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Effective date of registration: 20070112 Address after: Delaware Patentee after: Hongyou Science & Technology Co., Ltd. Address before: Hsinchu Science Park, Taiwan Patentee before: Hongyou Science and Technology Co., Ltd. |
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Granted publication date: 20030910 Termination date: 20130512 |