TWM349150U - Picture scanner - Google Patents

Abstract

The present invention discloses a picture scanner which uses the method of shared image scanning, and the method of shared image scanning comprises the steps of distributing a document which is waiting for scanning into a plurality of image areas, and then captures each image of the image area and combines each image into a complete sensing image of document. The picture scanner comprises a frame, a plurality of reflecting mirror, a plurality of lighting modules, and a plurality of image sensing modules. The reflecting mirror interval disposed on the corresponding image areas, the lighting modules illuminates the image to generate the document image, which transforms to digital image signal by image sensing unit, then image processing the digital image signal into a complete document image sensing signal by image processing unit. Thus, the present invention can complete the document scanning quickly.

Description

M349150 VIII. New description: [New technical field] This creation is about a kind of scanning device, especially for the case that the file can be distributed into a plurality of image areas, and each area is imaged and imaged. The method is combined into a scanning device for sensing a video signal with a complete file, and can quickly output a document image and improve the scanning technology to affect the scanning quality due to scanning vibration. -φ [Prior Art] Scanners, especially image scanners, have become important computer peripherals in recent years. Image scanners can store documents, text ears, photos, negatives, and even flat objects. The image of the item is captured by the scanner. The image capture method is to first project the light onto the file. The reflected light has different intensity due to the different areas of the file. The charge coupled component (Charge_c〇upledDeviee, or contact-type shirt sensor (CMOS Image Sensor) , CIS) and other photosensitive elements convert the reflected light into digital data, and then read the human data through the scanning body. Finally, the group φ is a digital image. The scanned image can be stored in TIFF, EPS, BMP, GIF and PCX #image format. Commercial scanners can be divided into three main types: one is a flat-bed scanner for scanning photos or printed matter, etc. For example, a scanner with a cCD as a photosensitive element is scanned. A light-transmissive plate made of glass or light-transmissive plastic is placed on the device to place the file to be scanned, and the CCD module (CCDM^ moves by obstruction to scan by line line) The image of the file is converted into digital data. 'This is the most commonly used scanner. The scanner made by similar principle has a handheld scanner (Handheld Scanner) and a paper-feeding type according to the relative movement of the document and the CCDM. Sheetfed Scanner 〇 The second type is a Transparent Media Adapter scanner, which is designed to scan transparent sheets and negatives by setting a 6 M349150 on the scanner to evenly project the light source. Transmissive member. The second type is the Dmm Scanner, which uses a photomultiplier tube (PMT) as the photosensitive element. PMT technology can focus on the extremely small area of the image. Therefore, the drum scanner can reproduce all the layers in the area where the original density is high. It mainly provides a large image center or a professional advertising and image production organization. 1 See Fig. 1 and 2 is a perspective view and a cross-sectional view of a platform scanner of the prior art. The scanner comprises a frame 11, a transparent plate 12, an image sensing module 13 and two guide rails 14. The board 12 is disposed above the frame u, and a file 15 is placed on the light-transmitting board 12. The image sensing module 13 is disposed in the frame 11. The rails 14 are disposed on both sides of the frame n for Guide image sensing module 13 The image sensing module 13 includes a light source, and the light source may be a xenon lamp or a cold cathode light source tube (CCFL) 131, a reflection seat 132, a cylindrical mirror 133, and a linear image sensor (line image). The sensor 134 and a printed circuit board 135. The cold cathode light source tube 131 is used to project a light source, and the reflective seat 132 is used to focus the light from the cold cathode light source tube 31 to the document 15. A cylindrical mirror 133 is used to focus the light source onto the linear image sensor 134. The printed circuit board 135 carries and electrically connects the linear image sensor 134. In a different linear image sensor 134, a linear charge CCD image sensor or a contact image sensor eiSCC cmtact Image Sensor can be used. In the selection of these two kinds of image sensors, the CCD technology is more mature. The noise is less, the color is richer, and the deeper depth of field can scan the paper with a little wrinkle. However, CIS (classified with CMOS image sensor CM〇s) is simple and lightweight, and can be used to manufacture ultra-thin scanners. The disadvantage is that the depth of field is short, and the scanned documents must be flat. Can not scan solid objects, and the ability to resist noise (noise) is poor and affect the image quality of the document. 7 M349150 The field sweep file is 15 o'clock. The step 14 drives the guide rail 14 to move the guide rail 14 to move the miscellaneous cymbal group 13 in the direction of the Na, so that the image sensing group 13 sequentially scans the document 15. However, the disadvantage of this conventional art scanner is that the V-spin 14 image-sensing module 13 is moved in the scanning direction to complete the file. Moreover, since the stepping motor drives the guide rail 14 to move by the engagement of the gear and the gear, if the tolerance accuracy is insufficient, the vibration is easily generated and the image sensing group 13 cannot accurately determine the document 导致, resulting in poor image quality. In the current development of the product, the optical resolution of the image sensing module 13 refers to the number of image points that the photosensitive element can capture every inch, which can reach more than 2400 dpi, but is generally acceptable on the market. In terms of commodity price, the mechanical resolution of the stepper motor and the guide rail 14 (Meehanieal Res-) refers to the record of the Yingxian Yingji chicken when the photosensitive element is driven, only 12〇Gdpi, if the stepping motor makes the positive precision When the persimmons are thin, the bribes can be increased, but the production costs will increase. Therefore, at present, the manufacturing technology cannot make the degree of grading to follow each other, and the residual miscellaneous solution reduces the surplus-dumping. The disadvantage of the mechanical scanning of the platform-based scanner is that the current sweep (four) due to the demand of thin and light ^ caused the distance between the file 15 and the linear image system n 13 to be too small, resulting in a larger field of view (FOV) If the document 15 is wrinkled, the document 15 at the wrinkle cannot be accurately imaged onto the linear image sensor 134 due to the focal length shift (f〇cusdeviati〇n), resulting in blurring of the document image. In order to improve this shortcoming, the Japanese patent JP1186G77 proposes to take a file in a divided area manner with five CCD image sensing elements, but if this technique is applied to the scanning, it is proposed to improve the shortcoming. On the device, the CCD image sensing element and the imaging lens (image f〇rming lens) need a considerable turn for the target file (file 15), and the image is transmitted to the image of the mosquito net to the image sense 8 M349150 = 70 pieces. On the 'this formation of the sweeper requires the height of the phase #, ^ ^^^^^^t (wide.gleshortbackf〇cal^ two transparent can be green imaging, but it may also cause Jingke: = 曰本 patent说娜8Proposed to describe the image of the image, and image the image area into several image lenses on the image sensory; lack of this technology still saves the slaves without the frequency resolution problem of the machine. Sensing ϋ develops rapidly, and the image 撃 撃 糸撷 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整 整On the sweep. Nearly the price has also fallen with the reading, it should be able to develop _扫·上."如制裔 [New Content] In view of the above-mentioned problems of the prior art, the purpose of this creation is to provide a kind of 萌 f f 知 魏 Wei Wei It is slow and difficult to improve the resolution. According to the purpose of the present invention, a scanning device includes a frame, a plurality of mirrors, a plurality of image sensing modules and a light source module. Coffee, to distribute a number of image areas. Light = module contains at least - light group, Wei is placed in the frame. Image module is set in the frame 'and multiple file images corresponding to the image area Converted into a digital shirt, the light source of the towel is illuminated, and the image is generated according to the complex image area. The image of each file is reflected by the sub-reflection mirror and incident on the image state, and the document image passes through the scene. The image sensing module is converted into a digital image 9 M349150 • a signal, and each of the digital image signals is processed by an image processing module to output a complete file sensing image signal. The measuring module comprises an image surface sensor and an imaging lens unit; the imaging lens unit is composed of at least one lens, and focuses the reflected document image on the image surface sensor, and the image is detected by the image surface sensor Converted into a digital image signal. ~ wherein the imaging lens unit further comprises a lens group, and the twist lens group can correct the trapezoidal phenomenon generated by the reflected document image. As described above, the scanning device according to the present invention There may be one or more of the following advantages: (1) The image sensing module of the scanning device captures the corresponding image area by each image sensing module without moving through the image sensing module Or you can scan the image by moving the file to be scanned, so you can quickly scan the file. (2) The scanning device can scan the image without using the guide rail to drive the image sensing module to scan the document, which not only avoids the impact of the image sensing module on the scanning quality, but also avoids the mechanical resolution lower than The optical resolution leads to the problem that the imaging quality cannot be further improved. (3) This scanning device scans the field of view of the image-capturing lens of the image sensing module by imaging the virtual image of the mirror, so that the depth of field of the image is increased, and the document with slight wrinkles can still be clearly imaged. [Embodiment] In order to make the creation more clear and detailed, the preferred embodiment is illustrated and the following figures are omitted. The structure and technical features of the creation are detailed as follows: The following disclosure of the creation M349150 * = is actually for this The creation of the device is a component of the device. The following embodiments are applied to the A4 or A3 size of the f-staining age, but in general, the scanning design and application are Those who are familiar with this skill in this field understand that this method relies on the scanning method of the distribution silk. The image area of the image can be two or three or more, and the file size, resolution, etc.其 'The method of image processing or image calculation method is not limited to the method of image processing that is not revealed by the following; the components of the scanner disclosed in this creation are also implemented in the implementation of the unique touch. It is possible to make many changes, modifications, and even equivalent changes to the constituent elements of the Swina. For example, the design of the light source module can be performed using a cold cathode lamp, a light emitting diode or a lamp, and the lens mode is not limited; Group of mirrors The number of lenses, the combination of diopter, and the optical design are not limited; or the use of CCD, CIS, or CM〇s for face image sensors is not limited. Please refer to the 3®, the flow chart of the steps of the scanning method of the scanning device of the county. The scanning method for the distributed imaging has at least one light source module, a plurality of mirrors, a plurality of image sensing modules and an image processing module. The scanning method for distributing the images comprises the following steps: Step S31: assigning - files into two or Two or more plural miscellaneous regions; Step S32. Setting the mirror and the image sensing module in the corresponding image regions; Step S33. Initiating the light source module to illuminate the files of each image region, and respectively forming a file H The 17 illumination mode can simultaneously illuminate each image area or respectively illuminate each image area; Step S34: Reflecting the document image to the image sensing module by the mirror; M349150 is like the ^% % t€ - Digital image [S36. Diligence _, 彡 戦 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The image processing method of the image processing module of the image processing module of the image of the scanning module of the scanning device of the creation of the scanning device of the present invention is implemented by the following steps: Correcting each image step S362 by using trapezoidal correction (trapez°id-η) method: sequentially arranging the positions of the image images of each file; Step S363. Correcting the overlapping portion of each image area by the conversion method; [Jing Jing Cheng Cheng - complete text step S365: complete file scanning. The image sensing module in step S36 can be re- or cross-ladder = 2 steps to correct the surface of the package and / to explain the implementation of the scan correction for the creation of the creation. Please refer to the 5th circle and the measurement model. The image processing module of the trapezoidal sword is used to correct the horizontal trapezoidal image. The figure is the trapezoidal image of the age-old flat storage. (4) The rural material is different from the ^^^^^ M134150 unit) is the ^~ column, each number Baoshang* direction) Keystone correction, school liberation, such as horizontal (x Ο) .izl^ h where 2p is the distance from the bottom edge of the image to the ladder, 2q bottom length, Q is the column distance The height of the trapezoidal image, the length of the top edge of the Mex image, and h is the distance between the horizontal and the X-threshold data points. This trapezoidal correction method is displayed in a boat. In the vertical trapezoidal image system, the trapezoidal correction is performed. As shown in Fig. 6, the pixel group (pixd read) is - column ^ vertical trapezoidal image bottom edge and top edge is large, and is considered longitudinal (the distance of each data point in the y direction is at the McY rate, the ladder is positive, the correction formula Equation (2) can be expressed as: izi '(2) q is the top side length of the longitudinal trapezoidal image, h is the same degree of the vertical trapezoidal image, M eY is the magnification of the horizontal data noisy amplification. One 2 correction file image of the ladder, another image _ Yu Zhi imaging lens unit, set - ίΒ lens group, as shown in Figure 19 'Twisted lens can be horizontal image surface (Anam_ic Optical surface), ring image surface (T〇ric 叩 ( ( 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四The torsion lens group is composed of an aspherical surface with two optical planes, and the aspherical surface in the x-axis direction or the x-axis direction is expressed by the following surface equation: 1 · Anamorphic equation 13 M349150

Z = —_ (Cx)X2+(Cv)72 『.....^ J . 1 + V1 -(1 + ^)(Cx)2~X2 -(1 + Ky){Cyf y2 +Ar~Ap+^ + Αρ)γ2\ + ^[(ΐ-5?)χ2+(ΐ + ^)Γ2]3 +cs[(ic?)jr2+(i+Ci,)72]4 + [(1-DP)X2+(1 + /)^)72]5 (3) where Z is the distance (SAG) from the optical axis direction to the tangent plane of any point on the lens, <^ and (^ is the curvature of the X direction and the γ direction ( (3)^Blood); && Knife J is the X-direction and γ-direction conic coefficient (c〇niC coemCient); a, &, & 'φ and 仏 are rotationally symmetric (rotati〇nally symmetric The fourth and sixth times of the 'eight times and ten powers of the conical deformation coefficient. He is dismissed ^ (10) this ^ (6); 4, A, G and bad are not rotationally symmetric (n〇n_r〇tati〇nallysymmetric components) The deformation coefficient (deformationfixmitheconic) of four, six, eight, and ten powers respectively; when Q=Cy, the ruler=[and 4=^=Cp=^=〇 is simplified to a single 'one aspherical surface. 2 : Toric equation

Z = Z" — 1 + ^ ~ (Cxy)2 X2

Cxy =-ί- (l/Cx)-Zy

Zy = (Cy)Y2 ^l-(\ + Ky)(Cy)2Y2

+ B4Y* + B6Y6 + B&Y8 + BX0YW (4) where Z is the distance (SAG) of any point on the lens from the optical axis direction to the 切 point tangent plane and (^ is the curvature of the Y direction and the X direction; It is the Conic coefficient of the γ direction; &, 尽, 氏 and ～ is four, six-person eight-person, ten-personal coefficient (4th~10th order coefficients) deformation 14 =5 M349150 from the Conic); when <::=(: and especially H=〇 is simplified to a single sphere due to the aspherical optical surface of the ίθ lens, according to the curved surface of the aspherical optical surface to form different exit angles to read the f image according to each light spot The distance between the two is made into a trapezoidal correction. > The parental group is a detailed description of the image processing of this creation. See Figure 7. For the financial, A and R hearts, and, the choice of the lack of positive methods, please second file Image, the first file of the mutual money - document image and

The pixel bl is partially overlapped with each other: al and the first file image B are selected as the better image quality; the first image f is from the overlapping portion f of the image-image A pixel c盥 first :, the part of the shirt like the pixel b2 of the B overlaps each other = the overlapping part _ the part with better image quality. By this, it is possible to eliminate the Wei parts of the ^^, A, and B y, to merge into one image. ', ^ 凊 Refer to Figure 8, which is the scanning device diagram of this creation. In the figure, the scanning device comprises a frame 31, a light transmissive plate 32, two mirrors = 34 and four image sensing modules 35. The light transmissive plate 32 is disposed on the body 3i and disposed above the light transmissive plate 32. The mirrors 33 are respectively extended by the needle cores at the bottom ends of the frame body 31, and form an angle Ψ ' with the viewer & and the mirror 33 and the distribution line 311 define four image areas 37. The light source = group 34 has a reflective sheet 34 for collecting light for projecting light onto the document %. The reflected light of the file 36 is reflected by the mirror 33 to form a virtual image, and the four sensing regions 37 are defined according to the distribution line 311. And the image is taken by the four image sensing modules %. Referring to Figures 9 and 10, which are schematic views of the imaging device and the image sensing module of the present scanning device, respectively. The image sensing module 35 includes an imaging mirror M349150, a chip unit 35, an image surface sensor 352, and a printed circuit board 353. The image surface sensor 352 can be an image sensor (area image sens〇r). To implement. The image sensing modules 35 are disposed on both sides of the frame 31 and respectively correspond to the sensing regions 37. An imaging lens unit 351 is disposed beneath the document 36 for focusing the scanning light onto the image surface sensor 352. The printed circuit board 353 is used to carry and electrically connect the image sensor 352 and the image processing unit (not shown). In FIG. 9, the file 36 to be scanned can be allocated into four image areas 37, and after each image area 37 is illuminated, the image areas 37 of each image area 37 are reflected by the reflecting light source (not drawn in the present money). The imaging lens unit 351 of the image sensing module 35 is imaged on the image surface sensor 352 and transmitted to the outside via the printed circuit board 353. In order to explain in detail the imaging method of the scanning device of the present invention, please refer to Fig. 8 and Fig. 11 of which the first drawing is a schematic diagram of the optical path of the scanning device of the present invention. In the figure, taking a single image area 37 as an illustration, the image sensing module 5% of the image surface sensor 352 is disposed below the image area 37, and the image surface sensor is loose from the center point to the file 36. , the image module % is in the horizontal direction of the opposite reflection = 73; in the different 'shadow _ female group % can be different == anti-general 73 can be mixed _7 fine anti-Wei ===r this virtual image, into a digital Image 2: The scale of the Fox Field 37 is complete, its mis tan^ > /•cos 泠ΖΓ cos in T + - 0.15 ~¥~

EFL Υ tan0 16 (6) (5) M349150 _ Its towel ' 2 Θ is the shadow of the 峨 峨 & & & ί ί ί ί ί ί ί ψ ψ ψ ψ ψ ψ ψ ψ 反射 反射 反射 反射 反射 反射 反射 反射 反射 反射 反射 反射 反射 反射The listening length, τ is the image sensing module's image surface sensor along the image sensing module to take the distance from the lens center light to the mirror surface, d is the vertical distance from the image surface sensor center point to the bottom surface of the document 2Y is the image surface sensing 11 effective sensing _ the scale length, EFL is the effective focal length of the imaging lens unit (effective f0cal iength), as shown in Figure u. In order to facilitate the understanding of the image capture module of the creation of the image capture lens - Lu angle of view and effective focal length, the four A4 size files are assigned into four image areas 37: Description, each image area is divided into 37 For the equal size, each of the shadows (9) Portuguese (public shame), its age 2 / = 181.8_, the vertical distance d, the distance T from the image surface sensor 352 to the surface of the mirror 73 is %. 5mm, using a 50,000-pixel CCD, 2.5" image surface sensor 352, the effective diagonal length is 2r = 6.4ww, and the angle between the mirror 73 and the horizontal is 30. Calculated by the equation (1) It is known that the field angle of view is 56. The imaging lens unit 351 having an effective focal length of 6.018 mm. The field angle of view of this embodiment satisfies the formula (5) 'EFL can be calculated by the equation (6). 丄iW = 0 = 28 >tan-1 (—~osf +^)

• 2 T + 丄T COS沴EFL = ^— = 6.0iSmm tm0 In this embodiment, the scanner is designed with A4 size file, according to the scanning method of the distributed imaging device of the present invention, for different reflections. Mirror % angle Ψ and image sensing module 35 position 'design of the imaging lens unit 351 light ^ parameters: Table 1: 17 M349150 Table 1, the first embodiment of the different applications of the age table

40.0 60 114.7 13.58 30 12.834 67.6 First application d(mm) 60.0 <P(deg.) 30 T(mm) 96.5 0(deg.)fiOm Eq(5) 27.56 FOV 56 EFL(mm) 6.018 Minimum height of frame (mm) 110.2 Second application 500 45 100.5 21.81 45 7.920 90.0 Please refer to Figure 8 and 12 ® , where Figure 12 is the image processing of the creation of the woman's imaging device. When the scanning device performs a bribe, the light source mode is driven to generate a light source to illuminate the document 36, and the reflected light source 361 generated by the reflection of the document 36 passes through the sensing region 37 to generate a four-file image 354. The document image 354 is processed by the image sensing group 35, and the image signal is processed by the image processing module 38 to output a full file sensing image signal 355. The image processing module 38 may include a trapezoidal correction 381 or/and a preferred elimination correction, wherein the 'light source mode, the group 34 is a cold cathode lamp (c〇w (3) fine ^ fluorescent lamp), the light emitting diode lamp and - One of the xenon lamps. Please refer to the U, 14 and 15 drawings, which are respectively a perspective view, a side view and a ship chart of the second embodiment of the scanning device of the present invention. The scanning device has a frame 7-transparent plate 72, a second mirror 73, two light source modules %, and four image sensing right groups 75. Regardless of the first implementation, you should not rely on the Am _ _ music (four) example. The four image sensing module 75 is the center of the scanner, and the mirror 73 is disposed on both sides of the scanner. In this case, the light board = is disposed above the frame 71, and (4) is carried - the file 76. The mirrors are disposed in the frame 71 at intervals, extending outward from the outside of the bottom portion_frame 71, and the mirror 72 and the distribution line 711 are assigned four sensing regions 712. The module 34 is surrounded by the upper end of the image sensing module 75 and the frame 71, and is provided with a light source of the document 76 and has a reflective sheet 741. The reflective sheet 741 can collect the light emitted by the light source. Projected on file 76, and avoiding the creation of bright spots on mirror 72. Because the second embodiment reads the financial image, the financial method is fresh, and the implementation is not the same. Wherein the light source module 74 is implemented as an LED light source as shown in Fig. 16. #t inch file is the design of the scanner, according to the creation

The scanning method for distributing imaging, for the position of different mirror module 35, the design of the lens unit 351 optical moxibustion shirt name

19 M349150 Table 2, Parameter Table for Different Applications of the Second Embodiment First Application Second Application d(mm) 60.0 50.0 9(deg.) 30 45 T(mm) 96.5 100.5 e(deg.) from Eq.(5 38.58 30.52 FOV 78 62 EFL(mm) 3.952 5.326 Minimum height of frame (mm) 136.8 109.1 Three applications 40Ό 60 114.7 19.00 38 9.293 79.3 • Please refer to Figure 17 and Figure 18, respectively. A perspective view of a third embodiment and a schematic diagram of image processing. The scanning device has a frame 8 , a light transmitting plate 82 , a second reflecting mirror 83 , a light source module 84 , and a three image sensing module 85 . The third embodiment differs from the second embodiment in that six image areas 812 are defined by the two distribution lines 811, the mirror 83 and the distribution line 811. When the file is scanned, the light source module 84 is driven to generate a light source to illuminate the document, and is reflected by the file and respectively incident on the corresponding image sensing module 85 through the image area 812 to generate a corresponding six-file image 851; The sensing module 85 further includes a pseudo lens group 851. The φ twist lens group 851 is disposed between the imaging lens unit (not shown) of the image sensing module 85 and the mirror 83. The twist lens group 851 can have γ. The correction of the direction (transverse) of the image can also be corrected in the X direction (longitudinal direction), as shown in Fig. 19. Referring to FIG. 18 and FIG. 19, the document image 851 is synthesized by an image processing module 88, and then outputs a complete document sensing image signal 855. The torsion lens group 851 converts the horizontal magnification ratio Mcx and the equation (2) to the longitudinal magnification magnification McY, and designs the aspherical surface to convert the angle and distance relationship into only the aspherical optical design. For the relationship of distance. In this embodiment, the torsion lens correction can also be performed without using the twist lens group 851, and the trapezoidal correction 881 can be performed using the image sensing module. In this embodiment, the positional relationship between the mirror 83 and the image sensing module 84, and the 20 M349150 optical path is as shown in FIG. In this embodiment, the A3 size text=° juice scanner is used, according to the scanning method of the distributed imaging of the present invention, the position of the mirror 85 and the image sensing module 86 are not. The optical parameters of the designed imaging lens unit 351 are as shown in Table 3:

d(mm) ~~ — tp(deg·) _ first application 60.0 second application 50.0 third application 40.0 T(mm) 30 45 60 ®(deg.) from Eq.(5) 89.4 32.18 91.6 25.70 94.3 16.95 EFL (mm) 66 52 34 Minimum height of the frame (mm) 4.927 116.1 6.561 94.0 10.467 68.6 Ancient smear The above-mentioned 'small scanning device is effective by the image sensing module "丨Z reflection light source, and by image The squad group processes the calculations and merges them into a file-sensing shirt image. 'There is no need to paste the scaly file, thus speeding up the scanning speed.

The guide rail is used as the other part of the scanning device. Wei is because the image lying module does not need to use the rail to scan the document, so the rail is prevented from vibrating and the scanning quality is 51. Like sweeping money with ίΠΐ—We are able to scan the wrinkled files by increasing the imaging distance by relying on the imaginary image of the virtual image. After that, it is only for the younger brothers. Any equivalent modifications or changes to the unfinished creations shall be included in Attachment 21 M349150 [Simple Description of the Drawings] Figure 1 is a perspective view of a scanner of the prior art; Figure 2 is a conventional Schematic diagram of the scanner of the skill art; Figure 3 is a flow chart of the steps of the sub-module image processing method of the sweeping device of the present invention. "The image processing of the method is based on the image processing module of the creation. The correction of the horizontal image is the schematic diagram of the opening of the image. The image processing module of the image is corrected. The intention of the creation of the image is not intended; Figure; The reading of the 戦 类 修 修 修 修 第 第 第 第 第 第 第 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄 襄The picture is the surface of the creation of the image of the 7th (fourth) is the basis of the _ the details - the second diagram of the sensory group is the schematic diagram of the light of the creation, the fourth road is the schematic diagram of the image processing of the creation; The perspective view of the second embodiment of the second generation of the original creation of the map of the county is based on A side view of a second embodiment of the second embodiment is a plan view of a second embodiment of the present invention; a schematic view of the embodiment; a second embodiment of the field is based on an LED light source as the actual figure 17 A perspective view of a third embodiment of the present invention; 22 M349150 The image of the second embodiment is illustrated by the twisted lens group to correct the trapezoidal image of the 18th series, which is the scanned image of the creation; And & Figure 19 is the scanning skirt of this creation.

[Main component symbol description] 11, 31, 71, 81: frame; 12, 32, 72, 82: light-transmitting plate; 13: image sensing module; 131: cold cathode light source tube; 132: reflective sheet; : cylindrical mirror; 134: linear image sensor; 135, 353: printed circuit board; 14: guide; 15, 36, 76: file; 311, 811: distribution line; 33, 73, 83: mirror; 34, 74, 84: light source module; 341, 741: reflective sheet; 35: image sensing module; 351: imaging lens unit; 352: image sensing unit; 354, 851: document image; 355, 855: complete File sensing image signal; 361: reflected light source; 37, 712, 812: image area; 38, 88: image processing module; 38 881: trapezoidal correction; 382, 882: preferred elimination correction; 851: ίθ lens group; And 75, 85: image sensing module. twenty three

Claims (1)

M349150 IX. Patent application scope: i A scanning device comprising: a frame; a plurality of mirrors are disposed in the frame to distribute a plurality of image regions; and a light source module comprising at least one light source The image sensing module is disposed in the frame, and converts the image of the image area of the image area into a digital image signal; and an image processing module Receiving image processing by a plurality of image sensing modules; wherein the light source illuminates a file, and the file images are respectively generated according to the image regions, and each of the image images is incident on the respective mirrors The image sensing modules are configured to convert the image images into a plurality of image signals via the image sensing modules, and each of the color reduction image processing modules performs image processing 'to output-complete files _ Image subtraction. The scanning device of claim i, wherein the light source is one of a cold cathode lamp, a light emitting diode lamp and a xenon lamp. 3. The scanning device of claim 3, wherein the image processing module further has a trapezoidal correction function for performing trapezoidal correction on the digital image signal of the document image. 4. The scanning device of claim i, wherein the image sensing module further comprises an image sensing unit and an imaging lens unit. The scanning device of claim 4, wherein the field angle of view and the effective focal length of the wire lens unit satisfy the following equation: 24 M349150 tan 61 > Λ cos 沴T + d cos# 0.15 ~Ύ~ and EFL Y tan0, where 2Θ is the field angle of view of the imaging lens unit of one of the image sensing modules, ψ is the angle between the mirror and the document, 21 is the diagonal length of the image area, and Τ is the image sensing The image sensing unit of the module takes the distance from the center axis of the lens to the surface of the mirror along the image sensing module, d is the vertical distance from the center of the image sensing unit to the bottom surface of the document, and 2Y is the image. The diagonal length of the effective sensing surface of the sensing unit, EFL is the effective focal length of the imaging lens unit. 6. The scanning device of claim 4, wherein the image sensing unit is an image surface sensor. 7. The scanning device of claim 4, wherein the imaging lens unit further comprises a 铒 lens group for performing a trapezoidal correction on the document image reflected by the mirror. 25