TWI264936B - Adjustable contact image sensor scanner and adjustment method for the same - Google Patents

Abstract

An adjustable contact image sensor (CIS) scanner and an adjustment method therefor are provided. The provided CIS scanner includes a contact image sensor for scanning a desired object and a rod system connected thereto for adjusting a distance between the contact image sensor and the desired object. The provided CIS scanner is suitable for various applications since the position of the contact image sensor therein is adjustable with the rod system. In comparison with the conventional CIS scanner, the present invention not only improves the property of the scan image, but also overcomes the drawback resulting from the limited depth of field in the conventional one.

Description

i 1264936 IX. Description of the Invention: [Technical Field] The present invention relates to a scanning device capable of adjusting a focal length and an adjustment method thereof, and more particularly to a contact image sensing type scanning device capable of adjusting a focal length and corresponding adjustment thereof method. [Prior Art]

Currently, scanning devices on the market can be classified into two types: a charge coupled device (CCD) and a contact image sensor (CIS) depending on the type of photosensitive member used. In general, Lu' CCD scanning device has the advantages of high image resolution and long depth of field. However, since it must be configured with a series of mirrors and optical lenses, it has a large device size, assembly time and adjustment method. Complexity and other shortcomings. • The wrap-around principle of the w-shirt is simpler; since the CIS scanning device does not require components such as the lamp f and the optical lens,

t=2 seismic performance' and small size, light weight is CI^f drawing η: large shuttle potential. However, 'because the depth of field of the CIS sensor is short, and one = only the shadow at the G2 mm above and below the focus _ into U - the object to be scanned due to its own thickness or position difference with the sense 11 In the case where the set-up needles are inconspicuous, the device that scans the stencils will be severely scanned. The _-face D can be called the scanning device i: _== with the elastic element 1G to support the contact (reading sense) · The flexibility of the immersive component 10 5 makes the contact image sensing HU record the contact of the upper glass, thereby controlling the contact image sensor sub-friction _ 12 (four) _ _ 浐Referring to the drawings, which illustrate another conventional adjustable CIS sweep 2, in this scan m, by means of a movable sensor: 20 side, the matching is set in the domain test bracket Sliding on both sides of the 20: private, 2, 23 and the design of a drive belt 26 'with the motor (not shown) the total noise belt 26 to drive the connection image placed in the sensor bracket 20 ||(11 towels not shown) 'moving in the scanning direction to perform the sweeping operation; in addition, 'adjusting with the adjusting screw ^ provided on the bottom of the sensor bracket 20 The sensor holder 2G is pushed up and pushed to move the sensor holder 20 up and down with the contact image sensor to adjust the position of the contact image sensor. The adjustment device of the CIS scanning device is designed for single-application, that is, the meter is only suitable for a single type of object to be scanned. In addition, the elastic restoring force of the elastic element (such as a magazine or a spring piece) is utilized. Although the contact image sensor can adjust the distance between the object and the object to be scanned according to the thickness and position of the object to be scanned during the scanning process, in this design, the contact image sensor is known. 13⁄4 must be in contact with and rub against the upper glass, so it is easy to affect the scanning quality due to friction, and the friction will consume the torque of the motor and waste the power. Adjust the sensor focal length with the adjusting screw. The concept must be realized through artificial adjustment, not only inefficient, but also easy to scan due to human error. 1264936 The various kinds of missing tests and studies of the design of the well-known design, and the "successful test device and its adjustment method"; the juice set in this case can precisely adjust the CIS scanning through, the technical device The distance from the object to be scanned to obtain the clear sensor f content] The scanning image of the moon 唧 and the same mouthpiece 0 One of the ideas of the present invention is to hold the contact image ^ir"r!;r(contactimagesensor 'cl^:^i object' and the link between the money and the L to adjust the contact image sensor to be connected to the to-be-swept element, one of the distances further comprises an actuating device, The device is used to actuate the rod adjustment device. The invention is described as one of the actuators selected from the group consisting of a motor, a magnetic valve and a mechanical actuator. The Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ Μ According to the above concept, the thin device further includes at least a fine adjustment component, and a fine adjustment component is arranged on the image sensing surface to finely adjust the distance between the contact image and the touch object. According to the above concept, wherein the fine adjustment element comprises a _th-elastic element. According to the above concept, the thin device further includes - (4) for accommodating the contact image sensor and the link adjusting device. According to the above concept, the scanning device further comprises at least one second elastic element: the touch element::== the raw element is fixed between the inner side of the test body and the touch image sensor. People - this month also provides an adjustable scanning device, the scanning device package 2 - contact image sensing Langqi et a to be scanned object, and - adjustment device, connected with the connection 'to the right Scanning the object like:; bit; 'make the contact image_ have a distance, wherein the distance corresponds to the lay length. Between pieces - thick; = medium: position. According to the above concept, according to the above concept, the = thinning one link mechanism. The ergonomic system is coupled to the adjustment 妒: the accommodating device is actuated, the 舾嫱u, +, and the garment are actuated to actuate the adjustment device. It is also conceivable that the actuating beam magnetic reading and mechanical actuation are disposed therein: a system U, a motor, according to the above concept, the scanning system is set to be adjustable as one of the reference points of the distance . According to the above concept, the diagnosis is based on the above concept, and the elastic element. The contact image sensor and the adjustment code==Pack M′ are used to accommodate the scan fixture according to the above concept, wherein the second elastic opening and the 5 flatness contact image _11 . It is fixed in the shape of the inside - and the other aspect of the present invention is conceived in the method, wherein the nano-drawing device is a pure adjustment of the im-imposition, and (10)-transfer_frequency~m: Q is the garment, the method includes The first step between the object and the contact image sensor is obtained by a distance of two: the distance between the surname and the focus of the contact image sensor is activated by a focus, and the result is (c) The first comparison result is to adjust the position of the contact image sensor. 4, in step (8), determining the first distance according to the object to be scanned: among them. In step (e), the link adjusting device is the position of the image sensor, and the device corresponds to the focal length. The distance, wherein the second distance is the root of the method, wherein the method further comprises a step () after the step (c). The method is described in detail, wherein the method further includes a step after the step ‘. The first comparison result is judged based on the scanned image, and the link is adjusted according to the result of the comparison. 9 1264936, in accordance with the above concept, which actuates the linkage adjustment device in step (e), fine-to-segment actuation or a #-type actuation. [Embodiment] Please refer to the third figure (4) and the third _), which respectively show an appearance and a schematic diagram of an adjustable sweeping county (10) according to a preferred embodiment of the present invention; the adjustable wiper 3 includes a connection with each other. _ contact uncover sensor (CIS) 31 and an adjustment save %, and

An ing) 3G's body 3Q gazes to accommodate and tilt the contact image sensing 1 § 31 and _ record 32. The arranging & is composed of a set of link mounting and actuating device 322. By the action of the actuating device 322, the connecting device 321 can be driven to make 321 corresponding to the scanning glass 39. The position of the object to be scanned (not shown) above is = 7 = _ the height of _ _31, _ optimizing the contact 31 and the miscellaneous material - turning away from the contact image sensing The design focal length range of the device 31, and utilize

Ϊ Optimizing the position of the scalpel to scan, and rotating the good scan product 0 is a step-by-step fine adjustment of the distance between the contact image sensor 31 and the woman, in this embodiment, A first elastic member 33 is fixed on each side of the contact type, and a second elastic type 34 is fixed between the bottom of the image sensor 3 and the inner side of the new body. The elastic force of the rotating element 33, 34 and its turning force = in addition to the micro-turning 31 _ to be scanned distance, the buffer device 321 can be buffered when the contact 10 1264936 is adjusted 31 The vibration; wherein, the elastic element %, the material is a general polymer foam, a spring element, or a spring piece. 'In this implementation, in order to simplify the structure design and reduce the cost, the thin rod t is used as the _ recording 32 middle rod device 321; when, of course, in addition to the present embodiment In addition to the four-bar linkage device, other linkage devices (for example, five-link, six-link, etc.) that are connected to the lion can be used to form the adjustment device of the present day and month.

In the present embodiment, the ball double acting device 322 is a motor device for providing a stepless driving force for actuating the link device 321; when it is missing, it is rich, and it can also be used for Other requirements are used for the purpose, for example, using a solenoid valve (sol (10) id) device to provide a segmented driving force for the ί5Hay linkage device 321, or simply using a group of simple mechanical devices. Such as cams, partial wires or miscellaneous components).

In addition, a focus mark is further disposed on the scanning glass 39, and the adjusting device 32 is used as a reference mark when the distance between the contact type and the object is used; of course, in the automatic feeding = The wealth of the village, the village set the alignment target in the scanning device from ^'^#(aUt〇matic lament feeder, ADF)±(® 1 凊(4) fourth figure (4) and fourth figure (9) Another preferred embodiment of the present invention is a schematic cross-sectional view of a conventional scanning device for explaining the operation of the portable device; here, the actuating device, the adjustable device 3 is configured by - the set linkage device 321 and the two bundles of two jacks constitute 'to maintain the balance of the linkage 321 when actuating. Although - the whisker 35 is shouting like it is paved with the 1264936 When the design focal length of the device 3 Satoshi Glass 3 adjustable gynecological device 3 is used, the clear scan result will not be the first month, the 兮-μ 4 will be paid a clear scan shadow t, the f4 actuating device 322 In response to the distance, the linkage device is actuated to measure the crying 3'. The upper portion of the t-shirt 321 is connected to the contact image sensing H hunting to connect the connector. Type image sensor 31 is pushed upward

In the figure (8), the direction of the arrow U is shown to reduce the distance between the scanning object 39 and the object to be seen 35; and the link is cut to the lower part, and the action is connected to the purchase system. The elastic element 34 at the bottom of the 31 generates a pressure, and the restoring force corresponding to the elastic element % can be used to buffer the link between the contact image type, 31 and the object to be scanned. The device cuts the vibration phenomenon generated when the contact image sensing person 31 is adjusted. By the design of the adjustable scanning device of the present invention, it is possible to overcome the contact image sensing in the prior art (the lack of depth of field limitation of the CISW tracing device)

Point 'and scan all kinds of scans, change the height of the contact image sensor according to different picking requirements' and adjust the distance between the contact image sensor and the object to be scanned, so as to obtain the scan The best scanning quality. Further, the present invention also provides a height adjustment method for a contact image sensing (cis) scanning device to adjust the contact pattern image sensing to a south degree according to different scanning requirements to obtain a clear scanned image. Please refer to FIG. 5 , which is a flow chart of a method for adjusting a 12° degree of a contact image sensing (CIS) scanning device of the present invention. The execution step of the adjustment method is described. The scanning device includes a contact. Image sensor (CIS) and - link adjustment device. First, after the object to be scanned, that is, according to the to-be-swept domain, the first distance between the scanned object and the contact image sensor is as shown in step 51; then, the first distance is compared, One of the contact image sensors designs a focal length, and determines whether the first distance falls into the flip of the design focal length, as shown in step 52; if the result of the determination indicates that the first distance does not fall into the design focal length In the range, the I actuating the money bar is difficult to adjust the position of the difficult-to-touch image detector to make the second distance between the contact image controller and the object to be scanned, as shown in step 53; Then scan the scan image, as shown in step 54. In the method, 'based on the thickness of the object to be scanned or the position is clear = the distance of the ;; in addition, in order to further improve the scanning image clear: ί is: after the second scan 'according to the obtained scanned image The linkage adjustment device is actuated again (if not in step 55) to: adjust the position of the contact image sensor: - the contact image sense of the present invention is programmed to be a manual operation of the series Execution flow, even the ninth diagram: 'automatic execution flow; as shown in the sixth figure to scan: the contact image sensing according to the present invention (whichever is the flow chart of the first preferred embodiment) In the embodiment, the height adjustment side is a segmented adjustment method, and the adjusted scanning device comprises a milking shirt image sensor and a link adjustment. The device, wherein the link adjusting device comprises a solenoid valve (SQlenQid) actuating device to provide a segmented type for actuating the connection, and the user is selected according to different field requirements - appropriate Scan mode, such as selecting a feature Tracing, such as ^ = = do not; then decide whether to use flat scan (仃 描 ' ' ' ' 如 如 如 如 如 如 如 如 如 如 如 如 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台 平台The post-execution platform sweep 2 is respectively shown in steps 63 and 64; otherwise, if the choice is not to use the platform sweep: the method is executed, and the electric side is trained to bribe the link = device' and adjust the contact type. The height of the image sensor CIS (step), and reduce the automatic feeding _ (automatie ADF) ^ ^ tADF # ^ in the scanning device, the flow chart of the sweeping - drought 乂仏 细 , , The implementation steps of the whole method. In the case of the brother's scanning needs and "^, the user is based on the eight jobs and the miscellaneous-positive and negative film scanning mode, such as the steps to decide whether to use the platform scanning method, do not pick up

79% _ 10,000 (flatbed SCan) performs scanning, such as 歩W 72 does not, · If you choose the fresh table sweeping type to perform scanning ★ step in the device paste "domain amount execution averaging = description and 74; otherwise, If the selection is not in the flat = as in step 73, the solenoid valve actuating device is actuated to activate the connecting rod to adjust the field 仃 = 'the height of the contact image sensor CIS (steps, and open the ^ 14 1464936 set The moonlight mode, and then the positive and negative film scanning, respectively, as shown in the steps and figures, see 0, which is a third preferred embodiment of the contact image sensing (four) scanning device height adjusting method according to the present invention. The flow chart is used to illustrate the execution steps of the method. In this embodiment, the height adjustment method is a stepless adjustment method, and the adjusted scanning device includes a contact image sensor and a link adjustment. The device, wherein the _ rod adjustment device is driven by a motor to actuate & to provide a cymbal to actuate the connecting rod to adjust the driving force. Firstly, the user selects according to the scanning demand. Mode, such as selecting platform scan, automatic advance Women's field _) Fen or positive and negative film scanning mode, as shown in the step magic; because the thickness of the object to be scanned used in the late field mode can be assumed to be ^, that is, to make the contact image When the distance between the sensor and the object to be side is 'into the designed focal length range of the contact image sensor, the degree of operation must be assumed to be known, so the motor can be activated at '== first The contact image sensor is adjusted to the position of the contact image sensor and the object to be sided The focal length of the contact image sensor is selected by the material scanning method (test d_), - automatic paper feeding; 1 疋 positive and negative film scanning method (film scan) to perform scanning; if you choose to run the flat 1 嶋 跑, If the step = setting the scan is performed, then the scan file is initialized, and the automatic document feeder (ADF) is executed 15 1264936 > otherwise, as in step 83, and 84, the choice is to use Zheng Bo - Er Tian, Scan 'Open the magnetic backlight module and then scan, as shown in steps 83 and 84 respectively "Shown. Sweep; set: two: 'Based on the contact image sensing (CIS) according to the present invention, the flow chart of the implementation method of the adjustment method (10), saying that "the sensing scanning device comprises - contact type containing - motor Actuating itf1, wherein the connecting rod device further includes the power 1 ^ for applying the benefit of the connecting rod adjusting device, and the adjusting device is configured to set the number of the focusing target, thereby acting as the connecting rod The time between the ri_image sensor and the object to be photographed - the appropriate scan _ or the positive and negative scan mode, the automatic paper feed scan

Make the object like __ to Xiang, as shown in step 92), the auto-feed scan of the focus mark (as shown), or the positive and negative scan (as in step 92, perform the scan separately and obtain individual y, then y, then, after obtaining the scanned image, === shadow f, as step 93 is not clear, as shown in step 94. 卩 娜 娜 影像 image is determined in step 94, To be sensitive to the contact image:: = 16 1264936 flat A, whip can be directly executed: 1 =, step 95), ADF scan (if step 95 Γ γ = = insufficient clarity, then open the The motor actuates the sensor to adjust the ====^^: mouth 2 and then re-execute the scanning of the focus mark = 93), after taking, the scanning device can be based on: : The image sensor and the CCD 2 have the same smear image. And its adjustable scanning device scans the 巾 巾 目 而 而 而 钱 钱 钱 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! The action of the actuating device is set by the focus target, and the image of the target image of the object to be scanned is actually executed after the image is adjusted correspondingly to the scanned image of the focal point. The field action, and the improvement of the sweeping, the case is a new competitive invention, which has great development value. And the industrial applicability of the present invention is to be modified by those skilled in the art, without departing from the scope of the application. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic diagram of a conventional adjustable CIS scanning device;

The second figure is a schematic diagram of another conventional adjustable CIS scanning device;

FIG. 2(A) and FIG. 3B are respectively a schematic view and a schematic structural view of an adjustable scanning device according to a preferred embodiment of the present invention; FIG. 4 (8) and 4 (8) are A schematic cross-sectional view of an inspectable scanning device according to another preferred embodiment of the present invention, (iv) illustrating an operation of the adjustable scanning device of the present invention; and a fifth diagram showing contact image sensing of the present invention (CIS) scanning paste inter-level adjustment method to explain the basic execution steps of the adjustment method

An embodiment of a preferred embodiment of a contact image sensing (CIS) scanning device according to the present invention to illustrate the steps of performing the adjustment method; A flow chart of a second preferred embodiment of the contact image sensing (CIS) scanning device of the present invention to illustrate the execution steps of the method;

The "V7 diagram" is a flow chart of a third preferred embodiment of the contact image sensing (cis) scanning device according to the present invention, which is the same as the chirp, and the gentleman, 1 Illustrating the execution of the calibration method 18 1264936 FIG. 9 is a flow chart of a fourth preferred embodiment of a contact image sensing (CIS) scanning device height adjustment method according to the present invention to illustrate the execution of the adjustment method step. [Main component symbol description] 1 Scanning device 10 Elastic component 11 Contact image sensor 12 Glass

2 Scanning device 20 Sensor holder 21 Adjustment screw 22 Sliding element 23 Sliding element 26 Drive belt 3 Adjustable scanning device 30 Carcass

31 contact image sensor 32 adjustment device 321 linkage device 322 actuation device 33 elastic element 34 elastic element 35 object to be scanned 39 scanning glass 19 1264936 391 focus mark Η distance U arrow direction 51~55 steps 61 ~ 64, 63, 65, Steps 71 to 74, 73' to 75' Steps 81 to 83, 83, ~84', 83" to 85" Steps 91 to 95, 94, 92, 95, 92, 95, 95, steps

Claims (1)

1264936 Patent application scope: An adjustable scanning device, comprising: a contact-type shirt sensor (contact hmge bribery, CIS), using the K-spot sweeping object ’· The 敕2 garment is connected to the contact image sensor, 2. the application; the distance between the special detector and the object to be scanned. The device, the scanning device, further comprising at least a link adjusting splitting link adjusting device to actuate the scanning device selection motor, the 1 magnetic valve and a mechanical actuation according to the second aspect of the patent application; : The scanning device of the first item of the patent application scope is set. 5 rr scan Applying for the scan of the first item of the scope of the patent I, the more precise part of the 'the fine-tuning element is fixed on the connection ^3 at least - fine-tuning the touch image sensor and the second, on the device, to 6 · The scanning device of claim 5, the distance between t. Containing a first elastic element. /, the fine-tuning component package 7 · as in the scope of application for the scope of the scan package:: set the contact image sensor body 'with 8. = please patent scope item 7 Naping element, which The two elastic members 匕3 are at least between the second inner side and the contact type sensor. Set in _ body - 21 1264936 9 kinds of adjustable scanning device, including · 芎 〜 ~ contact sensor (CIS), is used to scan a to-be-scanned object; and, ', clothing , is connected with the contact image sensor, to the right: 2 3 = _ Lai Si Na position, so that, = = between the scanned objects has a distance from the melon as claimed in the scope of the ninth Should be scanned H r 1 gallic 1 set the contact type and a position among them - and the adjustment is placed, (4) adjust the device to claim the patent range of the scanning device I of the ninth item, the actuation 1 set _ Connect to the u uniform device. The garment is placed to actuate the adjustment. 13. The scope of the patent application is selected from the group of one of the actuators. "-Mechanical shouting set 14 of them. If you apply for the scanning device of the 9th item, the pair is more 匕3 - the focus glass is placed in the Sweepable As one of the distances referenced. Tian 15·If applying for the patent _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16. The scanning device of claim 15 wherein the fine tuning element comprises a first elastic element. 17. The scanning device of claim 9, further comprising a body for receiving the contact image sensor and the adjusting device. 18. The scanning device of claim 17, further comprising at least one second elastic member, wherein the second elastic members are fixed between an inner side of the body and the contact image sensor. 19. A height adjustment method for a scanning device, wherein the scanning device comprises a contact image sensor (CIS) and a link adjusting device, the method comprising the following steps: (a) determining a to-be-scanned a first distance between the object and the contact image sensor; (b) comparing the first distance with a focal length of the contact image sensor to obtain a first comparison result; and (c) according to the The first comparison results in actuating the linkage adjustment device to adjust the position of the contact image sensor. 20. The method of claim 19, wherein in step (8), the first distance is determined based on one of a thickness of the object to be scanned and a position. 21. The method of claim 19, wherein in the step (c), the link adjusting device adjusts a position of the contact image sensor to cause the contact image sensor to be scanned There is a second distance between the objects, wherein the second distance corresponds to the focal length. 12. The method of claim 19, wherein the method further comprises a step (d) after the step (c) _: scanning the object to be scanned to obtain a scanned image. 23. The method of claim 22, wherein the method further comprises a step (e) after the step (d): determining a second comparison result based on the scanned image, and based on the second comparison result Actuating the linkage adjustment device. 24. The method of claim 19, wherein in step (c), the linkage adjustment device is actuated by a stepless actuation or a segmented actuation. twenty four