CN2590075Y

CN2590075Y - Positioning structure

Info

Publication number: CN2590075Y
Application number: CN 02284941
Authority: CN
Inventors: 萧俊义; 陈聪颖; 李镇河
Original assignee: Transpacific IP Ltd
Current assignee: TRANSPACIFIC IP Pte Ltd
Priority date: 2002-11-01
Filing date: 2002-11-01
Publication date: 2003-12-03
Anticipated expiration: 2012-11-01

Abstract

A positioning structure is suitable for being arranged on the inner wall of a shell of a scanner, the length direction of the positioning structure is parallel to the moving direction of a scanning module, and the width or the image of the positioning structure is changed along with the length of the positioning structure. Therefore, the width or image of the positioning structure detected by the scanning module is used to confirm the position of the scanning module in the length direction of the positioning structure. Therefore, the scanning module can be directly moved from the current position to the position to be scanned without returning to the initial position, so as to save the time for correcting the scanning module.

Description

Location structure

Technical field

The utility model relates to a kind of parts of scanner, refers in particular to a kind of location structure of scanner.

Background technology

In scanning system, the optical scanning module that utilizes optical imagery framework and image capture technology is the most general scanning tools, general platform-type scanner (F1atbed scanner) on the market, its optical scanning module is to move along the one scan direction, so that the file on the printing opacity platform is scanned, and the optical scanning module drives by a drive unit, the power resources of this drive unit for example are a step motor (Stepper motor), are exported in order to control the speed and the scanning position of optical scanning module by the power of motor.In addition, the optical scanning module is made of a light source, one group of reflecting optics, a camera lens and image sensor.At first, the file of the ray cast that light source produced to the printing opacity platform, then this light can be via arriving reflecting optics, afterwards again via arriving camera lens after the reflecting optics reflection after the file reflection, and, be imaged on the image sensor at last via the focussing force of camera lens.

Please refer to Fig. 1, it illustrates the arrangement plan of the correcting sheet (Calibration Sheet) of known scanner.Correcting sheet 104 is to be one group of image or color (black, white) that contrast is strong, and the reference position (Home position) that is used for scanning module 110 is proofreaied and correct.Please refer to Fig. 1, the upper shell 100 of scanner has one scan form 102, and printing opacity platform (not illustrating) is to be attached on the inwall of upper shell 100, and contains the scope at lid scanning form 102 places.

Known correcting sheet 104 is to be attached on the inwall of upper shell 100, and correcting sheet 104 is positioned at the zone of the reference position top of scanning module 110.Therefore, when scanning module 110 when the F1 direction scans, scanning module 110 can be earlier by correcting sheet 104, and judge the position at the place, zone (representing) that contrast on the correcting sheet 104 is strong via the image sensor (not illustrating) of scanning module 110 inside with thick line, with the reference position of correct scan module 110 in X-direction and Y direction, the action that again file 106 on the scanning form 102 is scanned afterwards is with orientation and the size that obtains file 106.Yet before scanning next time, scanning module 110 must be got back to its reference position (promptly passing through the position of correcting sheet 104) along the direction of F2 earlier, just can scan next time.But the mode of answer like this location not only lacks efficient, and the time of answer location and correction again is also too in tediously long.

The utility model content

The purpose of this utility model is proposing a kind of location structure, be applicable to the one scan device, wherein width on the length direction of location structure or image are to change to some extent along with its length direction, by the position of the variation that detects its width or image in order to affirmation scanning module place on moving direction, make scanning module need not get back to reference position and reorientate, and saved its time of replying the location and proofreading and correct again.

Another purpose of the present utility model is proposing a kind of location structure, be applicable to the one scan device, wherein width on the length direction of location structure or image are to change to some extent along with its length direction, by the variation that detects its width or image in order to confirm position and image sensor on vertical moving direction the pairing position of scanning module at place on the moving direction.

For achieving the above object, the utility model proposes a kind of location structure, be suitable for being provided in the inwall of the housing of one scan device, the length direction of this location structure is the moving direction that is parallel to scanning module, and width on the length direction of location structure or image are to change to some extent along with the length direction of location structure, utilize the width or the image of location structure that scanning module detects, in order to confirm the position of scanning module position on the length direction of location structure.Therefore, scanning module need not got back to reference position, and can directly move to the desire scanning position by its present stop place, to save the time that it is replied the location and proofreaies and correct again.

For achieving the above object, the utility model more proposes a kind of location structure, is suitable for being provided in the inwall of the housing of one scan device, and this location structure mainly is made up of one first location structure and one second location structure.Wherein, the length direction of first location structure is the moving direction that is parallel to scanning module, in order to confirm the position of scanning module position on the length direction of first location structure.The length direction of second location structure is perpendicular to the moving direction of scanning module, in order to confirm the position of image sensor position on the length direction of second location structure of scanning module.

Above-mentioned location structure, wherein the profile of this location structure is a long and narrow triangle or long and narrow trapezoidal.

Above-mentioned location structure, wherein this location structure is integrally formed in the inwall of this housing.

Above-mentioned location structure, wherein this location structure is a flange or a groove.

In sum, location structure of the present utility model has following advantage at least:

1, location structure of the present utility model, wherein scanning module need not replied the location, and can directly move to the desire scanning position by its present position, has saved and has replied location and the time of reorientating, the convenient use;

2, location structure of the present utility model, it can be integrally formed with upper shell, saves whole cost;

3, location structure of the present utility model, it utilizes in the longitudinal direction width or the different structure of image scaled to locate the practicality height.

Description of drawings

Fig. 1 is the arrangement plan of the correcting sheet of known scanner;

Fig. 2 is the synoptic diagram that signal of video signal is incident upon the image sensor of scanning module inside;

Fig. 3 is the arrangement plan of a kind of location structure of the utility model first embodiment;

Fig. 4 is the synoptic diagram of image sensor;

Fig. 5 A and Fig. 5 B figure are the synoptic diagram of location structure;

Fig. 6 is the arrangement plan of a kind of location structure group of the utility model second embodiment.

Embodiment

For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, embodiment cited below particularly, and conjunction with figs. elaborate.First embodiment:

Based on above-mentioned known scanning module is to be located by one group of strong image or color correction sheet of contrast, and wherein image sensor is to receive this strong and weak different signal of video signal (or chroma response degree), in order to judge the reference position of scanning module.Hereinafter will do more detailed explanation at the structure of the image sensor in the scanning module.

Please also refer to Fig. 1, Fig. 2, wherein Fig. 2 is the synoptic diagram that signal of video signal is incident upon the image sensor of scanning module inside.Image sensor 200 for example is a charge coupled cell (Chargecouple device, CCD), it is to be arranged with the array kenel by one group of sensing born of the same parents (Cell array) 202 to form, and each sensing born of the same parents 202 is in order to receive the signal of video signal M1 of diverse location on the correcting sheet 104.Before and after sensing born of the same parents 202 receive during the very large signal of video signal M1 of strength difference, expression scanning module 110 is just on zone under the correcting sheet 104, and with the reference position (Home position) of this coordinate points as scanning module 110.

From the above, sensing born of the same parents 202 for example are the lattice point on the axes of coordinates, can reflect the position of signal of video signal position on image sensor 200.It should be noted that, when scanning module 110 along F1, when the F2 direction moves, can detect the distance of the reference position of desiring scanning document 106 and scanning module 110, and learn and desire the length of scanning document 106 on F1, F2 direction, again by position and the width of signal of video signal position on the sensing born of the same parents 202 of image sensor 200 of file 106 representatives, in order to judge the width of file 106 on vertical F1, F2 direction.

With regard to known technology, scanning module must be that reference point is judged the coordinate position of desiring scanning document with the correcting sheet, yet this mode has increased replys location and the time of proofreading and correct again.Therefore, the utility model first embodiment proposes a kind of location structure, and it utilizes the specific image signal that is received on the sensing born of the same parents of image sensor, to learn the position at scanning module place.

Please refer to Fig. 3, it illustrates the arrangement plan of a kind of location structure of the utility model first embodiment.Present embodiment is to utilize the location structure 304 of a thin-and-long to be disposed on the inwall of upper shell 300, and its length direction is the rough direction of scanning (being illustrated Y direction) that is parallel to scanning module 310.Location structure 304 can be and strong spacer of upper shell 300 color contrast or location chart etc., and it is attached on the inwall of upper shell 300.In addition, also can location structure 304 and upper shell 300 is integrally formed, it forms a flange or a groove on the inwall of upper shell 300, and with location structure 304 through special processings such as sandblasts or textures, its inwall with upper shell 300 is had contrasts strong difference.In addition, upper shell 300 has one scan form 302, and the length of location structure 304 is can be more than or equal to the length of scanning form 302.

Equally as shown in Figure 3, width or the image of location structure 304 on Y direction is different along with its length direction, the width or the image that are location structure 304 are to change with a ratio along Y direction, A width of ordering or the image width or the image of ordering wherein greater than B, by that analogy.Therefore, when scanning module 310 when Y direction moves, judge the signal of video signal of different in width or image representative, to determine the position at scanning module 310 place on the length direction of location structure 304.

From the above, because scanning module 310 can be studied and judged present position at any time, so do not need to be returned to its reference position and wait for correcting sheet correction position again, the action that scanning module 310 just can directly scan next time.In other words, can directly move on the position of desiring scanning document, thereby save its time of replying the location and proofreading and correct again according to scanning module 310 present positions.

Please refer to Fig. 4, it illustrates the synoptic diagram of image sensor.In the present embodiment, for example utilize the sensing born of the same parents 412 of the frontier area of image sensor 410, in order to receive the signal of video signal M2 of location structure representative, it should be noted that, this signal of video signal M2 can be the signal of different color light, or one picture signal change with a special ratios, or the different chart of a width ratio etc. all can reach the function of location at any time.

Please refer to Fig. 5 A and Fig. 5 B, it illustrates the synoptic diagram of location structure.The profile of location structure 504,506 for example is respectively a long and narrow right-angle triangle and a long and narrow taper triangle, wherein location structure 504,506 width or image scaled difference alongst.In addition, as above-mentioned shown in Figure 3, the profile of location structure 304 for example is one long and narrow trapezoidal, wherein location structure 304 width or image scaled difference alongst.Certainly, be familiar with this skill person, the location structure that also can utilize the non-linear width ratio to change is located, in this no longer being described further more.

By above explanation as can be known, the utility model first embodiment utilizes this location structure so that scanning module is located, in order to determine the position at scanning module place on its moving direction.Second embodiment:

Please refer to Fig. 6, it illustrates the arrangement plan of a kind of location structure of the utility model second embodiment.Present embodiment is to utilize the location structure 604,606 of two thin-and-longs to be disposed on the upper shell 600, and its length direction is rough respectively X-direction and the Y direction of being parallel to.Wherein, width or the image scaled difference of location structure 604 on the X-direction, and width or the image scaled difference of location structure 606 on the Y direction.In addition, location structure the 604, the 606th is equipped on the inwall of upper shell 600, it can be attached on the inwall of upper shell 600 or be integrally formed with the inwall of upper shell 600, and location structure 604,606 can be respectively more than or equal to corresponding scanning form 602 length or width.

From the above, different with first embodiment is that the location structure of X-direction is to determine its sensing born of the same parents pairing coordinate on X-direction in order to auxiliary image sensor.It should be noted that, when scanning module 610 process location structures 604, because location structure 604 each points (as C point, D point) width or image difference in the longitudinal direction, can make the sensing born of the same parents go up the asynchronism(-nization) that signal of video signal stopped of corresponding each point, and make image sensor (not illustrating) can locate the relative position of its sensing born of the same parents on X-direction.

By above explanation as can be known, the utility model second embodiment utilizes this location structure respectively the image sensor of scanning module and scanning module to be located, in order to the position at definite scanning module place on its moving direction, and the pairing coordinate position of sensing born of the same parents of definite image sensor.

Though the utility model discloses as above with preferred embodiment; right its is not in order to limiting the utility model, anyly has the knack of this skill person, in not breaking away from spirit and scope of the present utility model; when being used for a variety of modifications and variations, therefore protection domain of the present utility model is as the criterion with claims.

Claims

1. A positioning structure suitable for a scanner, wherein the scanner has a casing and a scanning module, and the scanning module can move linearly inside the casing, and the positioning structure is characterized in that :

It is arranged on the inner wall of the casing, and the length direction of the positioning structure is parallel to the moving direction of the scanning module, and the width of the positioning structure in the length direction changes along with the length direction of the positioning structure , the width of the positioning structure detected by the scanning module is used to confirm the position of the scanning module in the length direction of the positioning structure.

2. The positioning structure according to claim 1, wherein the shape of the positioning structure is a long and narrow triangle or a long and narrow trapezoid.

3. The positioning structure according to claim 1, wherein the positioning structure is integrally formed on the inner wall of the casing.

4. The positioning structure according to claim 3, wherein the positioning structure is a convex plate or a groove.

5. A positioning structure suitable for a scanner, wherein the scanner has a housing and a scanning module, and the scanning module can move linearly inside the housing, and the scanning module has a For an image sensor, the positioning structure is characterized by at least comprising:

A first positioning structure is arranged on the inner wall of the casing, and the length direction of the first positioning structure is parallel to the moving direction of the scanning module, and the width of the first positioning structure in the length direction is along with The length direction of the first positioning structure changes, and the width of the first positioning structure detected by the scanning module is used to confirm the position of the scanning module in the length direction of the first positioning structure ;

A second positioning structure is arranged on the inner wall of the casing, and the length direction of the second positioning structure is perpendicular to the moving direction of the scanning module, and the width of the second positioning structure in the length direction is along with The length direction of the second positioning structure changes, and the width of the second positioning structure detected by the scanning module when moving is used to confirm that the image sensor of the scanning module is located in the first positioning structure. 2. Locate the position along the length direction of the structure.

6. The positioning structure according to claim 5, wherein the shape of each positioning structure is a long and narrow triangle or a long and narrow trapezoid.

7. The positioning structure according to claim 5, wherein the positioning structure is integrally formed on the inner wall of the casing.

8. The positioning structure according to claim 7, wherein each positioning structure is a convex plate or a groove.