CN2487036Y

CN2487036Y - Book scanner

Info

Publication number: CN2487036Y
Application number: CN 01228743
Authority: CN
Inventors: 李岳兴
Original assignee: Avision Inc
Current assignee: Avision Inc
Priority date: 2001-07-02
Filing date: 2001-07-02
Publication date: 2002-04-17
Anticipated expiration: 2011-07-02

Abstract

A book scanner comprises a body, a scanning window which is arranged on the body and comprises a first part, a second part that is adjacent to the first part and an angle is formed between the two parts, and a crest line is formed at the joint place of the first part and the second part. An optical module which is arranged in the body and faces the scanning window is used for image scanning. A transmission mechanism, which is connected with the optical module, drives the optical module to move along the direction in parallel to the scanning window crest line. So the opened book can be placed flatly on the scanning window with a bent angle, the optical module moves along the book side binding direction for book scanning, then a clear scanning image ends at the bookbinding place is obtained.

Description

The books scanner

The utility model relates to a kind of books scanner that can scan adjacent two pages of books simultaneously.

See also shown in Figure 4ly, general platform scanner device 10 is provided with the scanning form 12 on a plane on a body 11, and group is established an optical module 13 (gear train of drive optical module is not shown in the figures) movably body 11 in.In the time will scanning books 14, books 14 are opened on the scanning form 12 that is placed on the plane.

But mostly scanning form 12 areas of general platform scanner device 10 are to make acceptance less than the specification of A4 area, so when the enterprising running hand pages or leaves scanning of general platform scanner device 10, can only single pass one page page.

In addition, books 14 open be placed on scanning form 12 on, the binding side 15 of books 14 can arch upward and away from scanning form 12, the scan image at binding side 15 places has the situation of distortion distortion and shadow through scanning after, thus the reduction quality of scanning.

See also books scanner 16 shown in Figure 5, the scanning form 18 that it has angle at a body 17 superordinates one, and an optical module 19 (gear train that drives optical module is not shown in the figures) movably is installed in body 17.In the time will scanning books 14, books 14 are opened the crest line 21 that makes the corresponding scanning of binding side 15 forms 18 and post on scanning form 18 surfaces.This kind books scanner 16 obviously is to solve the problem that binding side 15 can arch upward by the scanning form 18 with angle.

But because binding side 15 correspondences of books 14 are in scanner 16 1 sides, so the sweep trace of optical module 19 must could obtain the image at binding side 15 places in view of the above near the edge of scanner 16, to reach the purpose of complete scan books.In addition, limit affirmation actions such as (or seeking scan start point) must be proofreaied and correct, seek to optical module 19 through chroma-luminance, with the accuracy of guaranteeing that it moves, scans before beginning scanning.Therefore, after the action on limit is proofreaied and correct and sought to optical module 19 must the right side from this figure, begin to move to the left side again with scanning books 14, and optical module 19 in the middle of scanning form 18 segment distance to be arranged be not scan effect, so prolonged the time of whole scanning process, for the high-speed product trend of present pursuit, it is required that this kind books scanner 16 does not obviously meet trend.

In addition, because the optical module 19 of this books scanner 16 is to move along the horizontal part 22 that scans form 18, there are not optical module 19 correspondences for 23 of rakes that scan form 18, so this kind scanner 16 once can only scan one page page.And because structural restriction, the reference position of optical module 19 can't be located in the side near rake 23, otherwise can't proofread and correct and seek the action of scan start point.

See also shown in Figure 6, it is a scanner 24 that the pair of pages scan action can be provided, it is that a scanning form 26 with bending angle is set on a body 25, and the guide rod 27 of a tool bending angle is installed in the scanner body 25, and the optical modules 28 and 29 that two corresponding scanning forms 26 are installed on guide rod 27.

During scanning books 14, the binding side 15 corresponding crest lines 31 that scan forms 26 with books 14, adjacent two pages of pages of books 14 are posted at the horizontal part 32 and rake 33 that scan form 26, when optical module 28 and 29 moves, can scan two pages of pages simultaneously.

But this kind scanner 24 needs two optical modules 28 and 29 along the different directions angular movement, thus need be controlled by different gear train (not shown) respectively, so structure seems comparatively complicated, required cost is higher in the manufacturing.

The purpose of this utility model is to provide a kind of books scanner, it mainly provides the design that scans along the direction of bookbinding side, reaching the purpose that scans two pages of pages simultaneously and know the image at scanning bound side place, and simplify gear train to reduce manufacturing cost.

The purpose of this utility model is achieved in that promptly provides a kind of books scanner, includes: a body; One is installed in the scanning form on the described body, and it is formed with one first one, and one with described first adjacent and relative second one of becoming the angle shape, and form a crest line first one and second joint; One optical module, group are located in the body and corresponding described scanning form, for image scanning; And a gear train, be connected with described optical module, move with the direction of the crest line of parallel described scanning form in order to drive described optical module.

Further specify, the utility model is that a scanning form with bending angle is set above a body, the books that open for placement, and in this body, set a parallel bookbinding side and mobile optical module.And include two groups of reflector group, two lens and two image sensing elements in this optical module.Optical module only needs can receive respectively from the scan image on the different pages along parallel bookbinding side direction motion scan in view of the above.

The advantage of the utility model device is, it is provided with scanning form and a kind of parallel mobile optical module of band bending angle, thereby can obtain two adjacent page images of better quality simultaneously, scan easy reliably, and simple in structure, cost is low.

Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail, wherein:

Fig. 1 is an outside drawing of the present utility model;

Fig. 2 is a plan view from above of the present utility model;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is existing platform scanner device structural representation;

Fig. 5 is existing books scanner structure synoptic diagram;

Fig. 6 is another existing books scanner structure synoptic diagram.

See also Fig. 1, shown in Figure 2, the books scanner 40 that present embodiment disclosed is by a body 41 tops configurations one scan forms (glass window) 42, and an optical module 43 is installed body 41 in and a gear train 44 that moves in order to drive optical module 43 constitutes.

This scanning form 42 has been made one first one 45, and one with this first one 45 adjacent and relative second one 46 of forming the angle shape, make this scanning form 42 have bending.

The scanning form 42 of above-mentioned bending can directly be bent by a clear glass and form, and also can be docked by two clear glasses to form.And first one 45 and second ones 46 adjacent positions of scanning form 42 then form crest line 47.It should be noted that it may not be very clear directly bending the crest line 47 that forms by a slice clear glass, but but exist in fact.

This gear train 44 comprises a guide rod 48 and one group of transmission group 49 at least.Wherein this guide rod 48 is provided with parallel with the direction of the crest line 47 that scans form 42.Can comprise a motor 51 and belt 52 as for transmission group 49, and move in order to drive optical module 43.The motor 51 of this transmission group 49 can be arranged on the body 41, also can be arranged on the bottom of optical module 43.

The configuration of above-mentioned guide rod 48, a desirable guide rod 48 and with its corresponding group be located at crest line 47 under (as shown in Figure 1).Or get two guide rods 48 and organize the end positions that are located in the body 41 away from crest line 47 respectively.But no matter the quantity of guide rod 48 what, each guide rod 48 must be parallel with crest line 47.

See also Fig. 1, shown in Figure 3, this optical module 43 is installed on the guide rod 48 and driven by transmission group 49, to move along guide rod 48.

This optical module 43 has been made one first one 53, and one with this first one 53 adjacent second one 54.This first one 53 relative formation bending with second one 54, and parallel relative with first one 45 and second ones 46 that scan form 42 respectively.

Be provided with one group of reflector group 57 that is constituted by first catoptron 55 and second catoptron 56 in first one 53 of this external this optical module 43, and in reflector group 57, be equipped with the corresponding image sensing element (IMAGE SENSOR) 59 of lens 58 and and lens 58, for example electric charge electricity coupling device (CCD).

Be provided with one group of catoptron 63 that is constituted by first catoptron 61 and second catoptron 62 in second of this optical module 43 one 54 again, and in reflector group 63, be equipped with the corresponding image sensing element 65 of lens 64 and and lens 64.

Before present embodiment carries out image scanning, books 14 are opened and binding side 15 is rested on the crest line 47, this moment, books 14 two pages of adjacent pages then were flattened on first 45 and second 46 surface of scanning form 42, so can reach the purpose that convenient books 14 are placed.

When scanning, optical module 43 moves along guide rod 48.Being optical module 43 moves with the direction of the binding side 15 of parallel books 14, add first one 53 and second ones 54 of optical module 43, parallel relative with first one 45 and second ones 46 that scan form 42 respectively, and in first one 53 and second ones 54 of optical module 43, be equipped with the lens 58 that can receive scan image and 64 and image sensing element 59 and 65, so can obtain the image of knowing of adjacent two pages of pages when scanning simultaneously.

Again because optical module 43 is binding side 15 directions along books 14 moves, therefore optical module 43 provides the position that can positively project binding side 15 in order to the sweep trace (not shown) of scan image, therefore for the image scanning of binding side 15, can obtain preferable scanning quality.

In addition, only use an optical module 43 in the present embodiment, and only need control optical module 43 and move in one direction, no matter be that structural design or Stroke Control are all quite simplified therefore, not only can effectively reduce manufacturing cost, product trend in the use fast, accurately also meets the requirements.

Above-mentioned books scanner also can scan general file except scanning the books.When scanning, only need that file is seated in first one 45 and/or second ones 46 and get final product.

Claims

1. a books scanner is characterized in that, includes: a body; One is installed in the scanning form on the described body, and it is formed with one first one, and one with described first adjacent and relative second one of becoming the angle shape, and form a crest line first one and second joint; One optical module, group are located in the body and corresponding described scanning form, for image scanning; And a gear train, be connected with described optical module, move with the direction of the crest line of parallel described scanning form in order to drive described optical module.

2. books scanner as claimed in claim 1 is characterized in that described gear train comprises a guide rod at least, and the axial crest line direction with the scanning form of described guide rod is parallel, and described optical module winding is on guide rod.

3. books scanner as claimed in claim 1, it is characterized in that, described gear train includes a transmission group, and described transmission group group is located between described body and the described optical module, moves for driving the direction of described optical module with the crest line of parallel described scanning form.

4. books scanner as claimed in claim 1, it is characterized in that, described optical module system is provided with one first one, and one with described first adjacent and relative second one of becoming the angle shape, and being respectively equipped with reflector group in described first one and described second one advances for the scan image reflection, and in the light path of advancing of scan image, be equipped with lens, and the image sensing element relative with lens.

5. books scanner as claimed in claim 1 is characterized in that, optical module system be provided with relatively into a bent shape first one with second one, and first one of described optical module with second one, parallel relative with first one of scanning form respectively with second one.

6. books scanner as claimed in claim 1 is characterized in that, described scanning form is bent to form first one and second one with a clear glass.

7. books scanner as claimed in claim 1 is characterized in that, described scanning form by two clear glasses in abutting connection with form first one with second one.

8. books scanner as claimed in claim 1 is characterized in that, the guide rod correspondence of described gear train is below the crest line of scanning form.

9. books scanner as claimed in claim 1 is characterized in that described gear train is installed on the described body.

10. books scanner as claimed in claim 1 is characterized in that described gear train is installed on the described scan module.