CN1274859A - Positioning adjustment method and pattern of optical-mechanical module of scanner - Google Patents
Positioning adjustment method and pattern of optical-mechanical module of scanner Download PDFInfo
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Abstract
本发明的光机模组定位调整方法和图案,可以同时进行边界调整、水平调整、以及解析度调整,亦可经由示波器产生的波形进而判断光迹偏移的情况。同时,本发明更可利用增设于定位调整图案中央的白色区域,配合定位调整图案两侧的白色区域,来获得电耦合元件上中央和两侧部份的照度差异,判断是否合乎设定值。
The optical module positioning adjustment method and pattern of the present invention can simultaneously perform boundary adjustment, level adjustment, and resolution adjustment, and can also judge the light track deviation through the waveform generated by the oscilloscope. At the same time, the present invention can also use the white area added in the center of the positioning adjustment pattern to cooperate with the white areas on both sides of the positioning adjustment pattern to obtain the illumination difference between the center and the two sides of the electric coupling element to judge whether it meets the set value.
Description
The location of the relevant scanner ray machine of the present invention module is adjusted, particularly about a kind of in order to the location of adjusting charge coupled cell (CCD) in the scanner ray machine module and the pattern and the method for lens resolution, can learn the differences of illumination intensities of central authorities and both sides part on the charge coupled cell simultaneously.
Please refer to Fig. 1, Fig. 1 is the schematic perspective view that shows an example of existing device of image scanning.Existing device of image scanning has a light supply apparatus 14 at least, in order between scanning pattern (direction as shown by arrow A) and scanned 10 (for example paper, pictures etc.), to relatively move, so that with above-mentioned scanned 10 image, for example via a focal imaging device 16 (lens), and be projected to electric charge coupling sensing element 12.
Above-mentioned light supply apparatus 14 is installed on the above-mentioned scanning pattern, in order to emission light to above-mentioned scanned 10, as the light source that makes above-mentioned scanned 10 reflections (as shown by arrow B).Above-mentioned focal imaging device 16 can be made of lens, in order to above-mentioned scanned 10 light that reflected back are given focal imaging in above-mentioned video receiver 12 (as shown by arrow C).
Video receiver is generally electric charge coupling sensing element, the video conversion that receives is electronic signal after, carry out various subsequent treatment again, therefore, the location of charge coupled cell is adjusted in the assembling of scanner ray machine module very important.The position of charge coupled cell and camera lens and scanned position are crooked as if having, and the image that then scans will be affected.Again, if the location is inaccurate, but the then scanned scope that can't enter the modern element sensing of electric coupling fully; Again if then image can be not unintelligible in the position of the best resolution of camera lens, even influence correct signal of video signal value because of the increase and decrease of light.Therefore, general scanner ray machine module all need use the location to adjust pattern at wherein charge coupled device, lens position adjustment, phenomenons such as scope, resolution and magnification are not inconsistent generation that occurred level is offset to avoid, image is beyond the boundary.
Pattern is adjusted as shown in Figure 2 in traditional location, and above-mentioned location is adjusted on pattern 20 its surfaces has 3 horizontal linear pattern 25,27,21.Pattern 25 and pattern 27 main adjustment as the charge coupled device horizontal level; The both sides of the edge of center pattern 27 have discontinuity zone 29 to form, and this discontinuity zone 29 mainly is the usefulness as the boundary alignment of charge coupled device the right and left; 21 in pattern is in order to the usefulness as the resolution adjustment, has more vertical line segment resolution pattern 23 in the above-mentioned pattern 21 and uniformly-spaced repeatedly is covered with the analysis that is beneficial to resolution in the pattern 21.When utilizing traditional location pattern that the ray machine module is adjusted, be that this is located pattern as scanned, nationality is adjusted by the situation of actual scanning.General adjustment is divided into the resolution adjustment of boundary position, horizontal level and electric coupling device.In the adjustment of reality operation, must be at different adjustment projects and pattern is adjusted in running fix, for example, need make sweep trace drop on the part of pattern 27 when adjusting the border, and sweep trace is dropped on the pattern 21 when analyzing resolution.Therefore, adjust each time in the practical operation with regard to necessary mobile one-time positioning pattern, the possibility that will make the location adjust pattern generation error deviation itself heightens.In addition, just adjusting charge coupled device, lens, and during the relative position of location pattern, will expend the plenty of time.
The more important thing is, on the actual fabrication of scanner, though generally can use A/D converter to compensate adjustment at different illumination is saturated, but because its range of linearity has certain regulation, surpassing certain rate will be dark because of the middle illumination of edge illumination, and causes the situation of edge images colour cast.And traditional location adjust pattern but can't provide analyze charge coupled device central part and its dual-side illumination saturation ratio the data of palpus.
In view of this, one object of the present invention is adjusted pattern for the location that a kind of scanner ray machine module is provided, except that can more reflecting charge coupled device central part and its dual-side illumination saturation ratio in order to the location of adjusting charge coupled device (video receiver) and lens.
Another object of the present invention is for providing a kind of alignment adjusting method of scanner ray machine module, and the result is adjusted and will be adjusted to nationality directly by the oscillograph demonstration, with speed and the correctness of accelerating to adjust by using location of the present invention pattern to position.
For achieving the above object, the present invention proposes a kind of location of scanner ray machine module and adjusts pattern, differences of illumination intensities is adjusted and analyzed in the location that is used for scanner ray machine module lens, video receiver, at least comprise: one first adjusts pattern, the central authorities that are formed at above-mentioned location adjustment pattern are a strip belt-like zone, above-mentioned first adjusts pattern comprises at least: center white block is positioned at above-mentioned first central authorities that adjust pattern, in order to adjust the centralized positioning of above-mentioned ray machine module; And resolution is adjusted pattern, is formed at the both sides of above-mentioned white block respectively, as the usefulness of said lens resolution analysis; One second adjusts pattern, be formed at the both sides of the above-mentioned first adjustment pattern respectively, be used to adjust border, the horizontal level of above-mentioned video receiver, above-mentioned second adjusts pattern comprises at least: pattern is adjusted on the border, is used for the adjustment on above-mentioned video receiver border; Horizontal-shift is adjusted pattern, and comprising: one first pattern is used to adjust the level and the skew of above-mentioned video receiver; And, one second pattern, it does not link to each other with above-mentioned first pattern, and the zone that forms between above-mentioned second pattern and first pattern is that pattern is adjusted on above-mentioned border; Wherein, above-mentioned center white block cooperates above-mentioned border to adjust pattern, is in order to predict the difference of central authorities and both sides illumination on the above-mentioned video receiver.
Use location of the present invention and adjust that pattern positions charge coupled device, lens combination and the method for resolution analysis comprises: with said lens be disposed at above-mentioned location adjust pattern and and above-mentioned video receiver between; Repeat to adjust above-mentioned video receiver, can receive the reflected light that pattern is adjusted in above-mentioned location fully up to above-mentioned video receiver; Said lens is adjusted, made the central part of above-mentioned oscillograph display waveform be adjusted to maximum; Above-mentioned video receiver is adjusted, made above-mentioned oscillograph show above-mentioned first waveform, promptly finish the coarse adjustment of above-mentioned video receiver; Said lens is adjusted, made the central part of above-mentioned oscillograph display waveform be adjusted to maximum; Above-mentioned video receiver is adjusted, made above-mentioned oscillograph show above-mentioned second waveform, promptly finish the location adjustment of above-mentioned ray machine module; And, among above-mentioned second waveform, read the amplitude of above-mentioned qualified waveform central part and above-mentioned qualified waveform both sides amplitude partly respectively, get final product central authorities on the above-mentioned picture receiving trap and the illumination of both sides.
Use the present invention following advantage is arranged: one, the present invention can learn simultaneously whether border, the left and right sides meets, whether resolution meets, whether the illumination saturation ratio meets, whether level crookedly meets, whether magnification meets.Two, the present invention can judge the situation of optical track skew via waveform, so can promote speed and correctness that the location is adjusted.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Fig. 1 is the schematic perspective view of existing device of image scanning;
Fig. 2 shows traditional location and adjusts pattern;
Fig. 3 shows the embodiment that pattern is adjusted in location of the present invention;
Fig. 4 A to Fig. 4 E represents the situation of charge coupled device optical track skew respectively, and because of the different correspondences of situation of the optical track skew waveform by the oscillograph generation;
Fig. 5 is the synoptic diagram of alignment adjusting method of the present invention; And
Fig. 6 shows the present invention and locatees another embodiment that adjusts pattern.
Above-mentioned first adjusts pattern 31 comprises: center white block 31a is positioned at above-mentioned first central authorities that adjust pattern, in order to adjust the centralized positioning of above-mentioned ray machine module; And resolution is adjusted pattern 31b, is formed at the both sides of above-mentioned white block 31a respectively, as the usefulness of said lens resolution analysis.In this embodiment, above-mentioned resolution is adjusted the straight line that has the recurrence interval to arrange among the pattern 31b, and its density degree is decided on required resolution.In addition, resolution is adjusted the oblique line that also optionally uses the recurrence interval arrangement in the pattern.
Above-mentioned second adjusts pattern 32 comprises: pattern 32a is adjusted on the border, is used for the adjustment on above-mentioned video receiver border; And horizontal-shift is adjusted pattern.Above-mentioned horizontal-shift is adjusted pattern and comprised: one first pattern 32b is used to adjust the level and the skew of above-mentioned video receiver; And, one second pattern 32c, it does not link to each other with above-mentioned first pattern, and the white portion that forms between the above-mentioned second pattern 32c and the first pattern 32b is above-mentioned border and adjusts pattern 32a.In this embodiment, the above-mentioned first pattern 32b is a H type black region, and the above-mentioned second pattern 32c is the square black region.
Fig. 4 A to Fig. 4 E represents the situation of charge coupled device optical track skew respectively, and because of different correspondence of situation of the optical track skew waveform by the oscillograph generation, wherein, digital 41～47 optical tracks of representing respectively under the different situations.The image that pattern 30 is adjusted in scanner light source irradiation location of the present invention is via direct reflection and pass effect such as lens focus, and is converted to electronic signal by charge coupled device, and this signal inputs to oscillograph and shows relevant waveform.The amplitude that shows on oscillograph during the inswept white of light regional is relatively for noble potential H or be electronegative potential L: with present embodiment, the amplitude that the inswept white portion of light shows on oscillograph is electronegative potential L, and the amplitude that shows on oscillograph during light is inswept black region then is noble potential H.Therefore, when the situation that different skews and horizontal extent are not right takes place, the shown waveform of oscillograph also can reflect (as Fig. 4 A, Fig. 4 B, Fig. 4 C, and Fig. 4 D), and fall within promptly fixed scope and during unglazed trace displacement situation when optical track, one set qualified figure just can appear, shown in Fig. 4 D; So adjusting pattern, location of the present invention can judge whether optical track has the situation of skew to take place.
Among Fig. 4 D, SC, SL and SR represent the illumination of the central illumination and the left and right sides respectively.Also can be respectively by reading in the oscillograph, the left side illumination saturation ratio (SL/SC) of trying to achieve charge coupled device with and right side illumination saturation ratio (SR/SC), and whether the illumination saturation ratio of analyzing both sides meets the specification.
With reference to Fig. 5, use location of the present invention to adjust on the pattern 30 charge coupled device 52, lens combination 51 are positioned when analyzing with resolution, be the adjustment that will location adjustment pattern places scanned position to be correlated with again.Charge coupled device 52 places on the circuit board 53, and nationality is adjusted the position of charge coupled device by the adjusting gear 54 of circuit board both sides.
Alignment adjusting method of the present invention is adjusted between pattern and the above-mentioned video receiver for earlier said lens group 51 being placed above-mentioned location, and is positioned near the focal length.Utilize adjusting gear 54 to make above-mentioned video receiver can receive the reflected light that pattern is adjusted in above-mentioned location, if not then repeat above-mentioned steps.
Said lens group 51 is adjusted, lens combination 51 is moved forward and backward along Y-axis make the central authorities of oscillograph display waveform be adjusted to the highest.Utilize adjusting gear 54, charge coupled device 52 is moved along Z direction and directions X, to adjust the middle position of charge coupled device 52.When two trough P1, P2 appear in the resolution waveform both sides that oscillograph shows (shown in Fig. 4 C), then the coarse adjustment of charge coupled device 52 is finished in expression, and charge coupled device 52 also can sense border, the scanned left and right sides, and approximate horizontal and approaching central authorities.
Again lens combination 51 is adjusted, made lens combination 51 move forward and backward the central authorities that make the oscillograph display waveform and be adjusted to the highlyest, be the best resolution of lens combination along Y-axis.Then carry out adjustment to charge coupled device 52, reuse adjusting gear 54 according to different situations, make charge coupled device 52 along Z direction and directions X move, when trough P1 only appears in the resolution waveform both sides that oscillograph is shown (shown in Fig. 4 D), this state promptly shows charge coupled device 52 in middle position and level, scanned about the end all in the scope of charge coupled device 52.Again respectively by reading in the oscillograph, the left side illumination saturation ratio (SL/SC) of trying to achieve charge coupled device with and right side illumination saturation ratio (SR/SC), whether the illumination saturation ratio that can analyze both sides meets the specification.Because having determined event, the border can learn magnification in addition.
Fig. 6 adjusts another embodiment of pattern for the present invention locatees, itself and first embodiment shown in Figure 3 are roughly the same.Pattern 60 is adjusted in the location of another embodiment of the present invention, comprising: one first adjusts pattern 61a, and the central authorities that are formed at above-mentioned location adjustment pattern 60 are a strip belt-like zone; And second adjusts pattern 62, is formed at the both sides of the above-mentioned first adjustment pattern 61 respectively, is used to adjust border, the horizontal level of above-mentioned video receiver.
Above-mentioned first adjusts pattern 61 comprises: center white block 61a is positioned at above-mentioned first central authorities that adjust pattern, in order to adjust the centralized positioning of above-mentioned ray machine module; And resolution is adjusted pattern 61b, is formed at the both sides of above-mentioned white block 61a respectively, as the usefulness of said lens resolution analysis.In this embodiment, above-mentioned resolution is adjusted the straight line that has the recurrence interval to arrange among the pattern 61b, and its density degree is decided on required resolution.
Above-mentioned second adjusts pattern 62 comprises: pattern 62a is adjusted on the border, is used for the adjustment to above-mentioned video receiver border; And horizontal-shift is adjusted pattern.Above-mentioned horizontal-shift is adjusted pattern and comprised: one first pattern 62b is used to adjust the level and the skew of above-mentioned video receiver; And, one second pattern 62c, it does not link to each other with above-mentioned first pattern, and the white portion that forms between the above-mentioned second pattern 62c and the first pattern 62b is above-mentioned border and adjusts pattern 62a.In this embodiment, the above-mentioned first pattern 32b is the triangular form black region, and the above-mentioned second pattern 32c is the square black region.
Use the present invention following advantage is arranged: one, the present invention can learn simultaneously whether border, the left and right sides meets, whether resolution meets, whether the illumination saturation ratio meets, whether level crookedly meets, whether magnification meets.Two, the present invention can judge the situation of optical track skew via waveform, so can promote speed and correctness that the location is adjusted.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly be familiar with this skill person; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (7)
1. pattern is adjusted in the location of a scanner ray machine module, and the location that is used for scanner ray machine module lens, video receiver is adjusted and the analysis differences of illumination intensities, comprises at least:
One first adjusts pattern, and the central authorities that are formed at above-mentioned location adjustment pattern are a strip belt-like zone, and above-mentioned first adjusts pattern comprises at least:
White block in one center is positioned at above-mentioned first central authorities that adjust pattern, in order to adjust the centralized positioning of above-mentioned ray machine module; And
Resolution is adjusted pattern, is formed at the both sides of above-mentioned white block respectively,, as the usefulness of said lens resolution analysis;
Second adjusts pattern, is formed at the both sides of the above-mentioned first adjustment pattern respectively, is used to adjust border, the horizontal level of above-mentioned video receiver, and above-mentioned second adjusts pattern comprises at least:
Pattern is adjusted on the border, is used for stating the adjustment on video receiver border;
Horizontal-shift is adjusted pattern, and comprising: one first pattern is used to adjust the level and the skew of above-mentioned video receiver; And, one second pattern, it does not link to each other with above-mentioned first pattern, and the zone that forms between above-mentioned second pattern and first pattern is that pattern is adjusted on above-mentioned border;
Wherein, above-mentioned center white block cooperates above-mentioned border to adjust pattern, is in order to predict the difference of central authorities and both sides illumination on the above-mentioned video receiver.
2. pattern is adjusted in the location of scanner ray machine module as claimed in claim 1, and it is characterized in that: wherein, above-mentioned first pattern is a H type pattern, and near the side of above-mentioned resolution adjustment figure, above-mentioned second pattern is a black region.
3. pattern is adjusted in the location of scanner ray machine module as claimed in claim 1, and it is characterized in that: wherein, above-mentioned second pattern is a black region, and near the side of above-mentioned resolution adjustment figure, above-mentioned first pattern is a triangle black region.
4. the location of the scanner ray machine module method adjusting and analyze differences of illumination intensities, said method uses a kind of location to adjust pattern, to carry out lens in the scanner ray machine module, the location of video receiver is adjusted, and analysis differences of illumination intensities, the illumination intensity signal that above-mentioned location adjustment pattern is reflected into above-mentioned video receiver shows via oscillograph, said method utilizes the shown waveform of above-mentioned oscillograph to adjust, then above-mentioned oscillograph shows one first waveform when the optical track of above-mentioned scanner is positioned at above-mentioned location and adjusts the coarse adjustment zone of pattern, then above-mentioned oscillograph shows one second waveform when the optical track of above-mentioned scanner is positioned at above-mentioned location and adjusts the correct zone of pattern, and said method comprises at least:
Said lens is disposed at above-mentioned location to be adjusted between pattern and the above-mentioned video receiver;
Repeat to adjust above-mentioned video receiver, can receive the reflected light that pattern is adjusted in above-mentioned location fully up to above-mentioned video receiver;
Said lens is adjusted, made the central part of above-mentioned oscillograph display waveform be adjusted to maximum;
Above-mentioned video receiver is adjusted, made above-mentioned oscillograph show above-mentioned first waveform, promptly finish the coarse adjustment of above-mentioned video receiver;
Said lens is adjusted, made the central part of above-mentioned oscillograph display waveform be adjusted to maximum;
Above-mentioned video receiver is adjusted, made above-mentioned oscillograph show above-mentioned second waveform, promptly finish the location adjustment of above-mentioned ray machine module; And by in the above-mentioned qualified waveform, read the amplitude of above-mentioned qualified waveform central part and above-mentioned qualified waveform both sides amplitude partly respectively, get final product central authorities on the above-mentioned video receiver and the illumination of both sides.
5. method as claimed in claim 4, it is characterized in that: above-mentioned location is adjusted pattern and is included the central authorities that center white block is formed at above-mentioned location adjustment pattern, resolution is adjusted the both sides that pattern is formed at above-mentioned white block respectively, and level and border adjustment pattern are in close proximity to a side of above-mentioned resolution adjustment pattern respectively and form;
Wherein, above-mentioned level and border adjustment pattern has border adjustment pattern and horizontal-shift adjustment pattern; Above-mentioned horizontal-shift is adjusted pattern, and comprising: one first pattern is used to adjust the level and the skew of above-mentioned video receiver; And, one second pattern, it does not link to each other with above-mentioned first pattern, and the white portion that forms between above-mentioned second pattern and first pattern is that pattern is adjusted on above-mentioned border.
6. method as claimed in claim 5 is characterized in that: wherein, above-mentioned first pattern is a H type pattern, and near the side of above-mentioned resolution adjustment figure, above-mentioned second pattern is a black region.
7. method as claimed in claim 5 is characterized in that: wherein, above-mentioned second pattern is a black region, and near the side of above-mentioned resolution adjustment figure, above-mentioned first pattern is a triangle black region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB99107355XA CN1251478C (en) | 1999-05-19 | 1999-05-19 | Positioning adjustment method and mask of optical-mechanical module of scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB99107355XA CN1251478C (en) | 1999-05-19 | 1999-05-19 | Positioning adjustment method and mask of optical-mechanical module of scanner |
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| Publication Number | Publication Date |
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| CN1274859A true CN1274859A (en) | 2000-11-29 |
| CN1251478C CN1251478C (en) | 2006-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB99107355XA Expired - Fee Related CN1251478C (en) | 1999-05-19 | 1999-05-19 | Positioning adjustment method and mask of optical-mechanical module of scanner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322735C (en) * | 2002-09-24 | 2007-06-20 | 宇东科技股份有限公司 | Adjustable graphic interface of optical mechanism and its operation method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI733618B (en) | 2020-11-12 | 2021-07-11 | 佳必琪國際股份有限公司 | Coupling method of optical transceiver |
| TWI772218B (en) * | 2021-11-01 | 2022-07-21 | 致伸科技股份有限公司 | Optical module positioning method |
-
1999
- 1999-05-19 CN CNB99107355XA patent/CN1251478C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322735C (en) * | 2002-09-24 | 2007-06-20 | 宇东科技股份有限公司 | Adjustable graphic interface of optical mechanism and its operation method |
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| CN1251478C (en) | 2006-04-12 |
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