CN101330560A - Scanning module group and bilateral scanning apparatus with the same - Google Patents
Scanning module group and bilateral scanning apparatus with the same Download PDFInfo
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- CN101330560A CN101330560A CNA2008100297807A CN200810029780A CN101330560A CN 101330560 A CN101330560 A CN 101330560A CN A2008100297807 A CNA2008100297807 A CN A2008100297807A CN 200810029780 A CN200810029780 A CN 200810029780A CN 101330560 A CN101330560 A CN 101330560A
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Abstract
The invention provides a scanning module comprising a shell body, an image sensor, a prism and a plurality of reflection mirrors; the scanning module comprises two optical channels; a light source is respectively arranged in each optical channel; a plurality of reflection mirrors are symmetrically distributed in the shell body, wherein, one reflection mirror is positioned at the central line of the prism and movably connected with the shell body. The invention further provides a two-way scanning device which comprises the scanning module and can selectively read image information in the first and the second scanning regions. Therefore, the scanning module can avoid the use of two scanning modules. The cost is reduced and the structure is simple.
Description
Technical field
The bilateral scanning device that the present invention relates to a kind of scanning module and have this scanning module refers in particular to a kind of scanning module that can make scanning platform have two scanning areas, and the bilateral scanning device with this scanning module.
Background technology
Scanner is a kind of device of capturing video, can be the number format that computer can show, edits, stores and export with video conversion.Being of wide application of scanner is general, for example fine arts figure and photo scanning is attached in the file; Printing word scanning is input in the word processor, avoids typewriting again again; Fax paper scanning is input in database software or the word processor stores; And in multimedia, add image or the like.To send document or other scanned be loaded down with trivial details but manually add, and especially when being scanned into document in batches, file, it is particularly outstanding that this defective seems.
Now, have the appearance of the scanner of automatic paper feeder, can make the user avoid carrying out the loaded down with trivial details work that adds paper feeding, especially dual feed paper apparatus, the efficient of scanner is greatly improved.Scanner with two-way paper feed function can the automatic scan document, file or other scanned two sides, avoids artificial switched scan face.
There is the dealer that a kind of scanner with two-way paper feed is provided, promptly in scanner, have two scanning module, enter in the feed path of scanner can the one-off scanning two sides when document, file or other are scanned so, but obvious this scanner cost is too high.
Summary of the invention
Technical problem to be solved by this invention aims to provide a kind of scanning module, and this scanning module can be applied in the bilateral scanning device, and optionally the front or the reverse side of document is scanned.In addition, this scanning module is with low cost.
For achieving the above object, the invention provides a kind of scanning module, be arranged at the scanning platform inner side, it includes a housing, one image sensor, one prism and a series of stationary mirror, described scanning module has the optical channel of two symmetries, and the suitable light source of each optical channel, in described a series of stationary mirror in this housing along being symmetrical distribution, respectively in order to receive and to reflect certainly in the light of each passage, and one the maincenter speculum be provided with versatilely on the symmetrical position that is positioned at a series of stationary mirrors of prism, and can be two rotated position optionally to receive and to reflex to the light that this image sensor comes from above-mentioned symmetrical a series of stationary mirrors, so that this scanning platform constitutes two scanning areas, i.e. first scanning area, second scanning area, this scanning module optionally scan this first scanning area or second scanning area.
This scanning module has the optical channel of two symmetries, and corresponding in addition speculum, prism and image sensor can scan the correspondence position of scanning platform, make scanning platform have two scanning areas.Scanning module has above-mentioned simple for structure, and can scan two zones of scanning platform, so also improves document process efficient.In addition, though this scanning module has two optical channels, and a series of speculum, its shared prism and image sensor and a maincenter speculum can make this scanning module simple in structure, and cost reduces.
Another technical problem to be solved by this invention aims to provide a kind of bilateral scanning device, and this bilateral scanning apparatus structure is simple, and cost is low.
For achieving the above object, the invention provides a kind of bilateral scanning device, it comprises a front scan path, and document enters one first scanning area by this front scan path; One front scan discharge path, document is discharged this first scanning area by this front scan discharge path; One reverse side scanning pattern, the document of discharging first scanning area enters one second scanning area via this reverse side scanning pattern; One reverse side scanning discharge path, the document that enters this second scanning area is discharged this second scanning area by this reverse side scanning discharge path; And a kind of scanning module, be arranged at the scanning platform inner side, it includes a housing, one image sensor, one prism and a series of stationary mirror, described scanning module has the optical channel of two symmetries, and the suitable light source of each optical channel, in described a series of stationary mirror in this housing along being symmetrical distribution, respectively in order to receive and to reflect certainly in the light of each passage, and one the maincenter speculum be provided with versatilely on the symmetrical position that is positioned at a series of stationary mirrors of prism, and can be two rotated position optionally to receive and to reflex to the light that this image sensor comes from above-mentioned symmetrical a series of stationary mirrors, so that this scanning platform constitutes two scanning areas, i.e. first scanning area, second scanning area, this scanning module optionally scan this first scanning area or second scanning area.
This bilateral scanning device has two scanning areas, and has the one scan module optionally to read the information of document in first and second scanning area.This structure can be removed from two demands of scanning module independently.Though and this scanning module has two optical channels, and a series of speculum, its shared prism and image sensor can make this scanning module simple in structure, and cost reduces.The application of this scanning module can make the space of bilateral scanning device more compact.
Description of drawings
The present invention will be described in detail and description hereinafter with reference to accompanying drawing and in conjunction with respective embodiments:
Fig. 1 a is the structure chart of scanning module of the present invention;
Fig. 1 b is the movable connection structure schematic diagram of maincenter speculum among the present invention;
Fig. 2 a is designs simplification figure of the present invention;
Fig. 2 b is document single-sweep of the present invention or document front scan schematic diagram;
When Fig. 2 c is document single-sweep or document front scan, the position view of speculum in the scanning module;
Fig. 2 d is document reverse side scanning schematic diagram of the present invention;
The position view of speculum in scanning module when Fig. 2 e scans for the document reverse side;
Fig. 2 f finishes the schematic diagram that sorts behind the duplex scanning for document of the present invention;
Fig. 3 a is the enlarged drawing of A part among Fig. 2 a;
Fig. 3 b is the enlarged drawing of B part among Fig. 2 d;
Fig. 4 is the designs simplification figure of second embodiment of the invention;
Fig. 5 is the designs simplification figure of third embodiment of the invention;
Fig. 6 is the designs simplification figure of fourth embodiment of the invention; And
Fig. 7 is the designs simplification figure of fifth embodiment of the invention.
Embodiment
Briefly, scanning module provided by the invention is applied in the bilateral scanning device, this scanning module has, two optical channels, a series of speculum and corresponding prism and image sensors, it makes the scanning platform of bilateral scanning device constitute two scanning areas, and this scanning module can be to these two scanning area selective scanning.With document or other scanned image informations on the acquisition scanning platform.Simultaneously, the present invention also provides a kind of scanning means, and the front scan path that this scanning means has and reverse side scanning pattern and column distribution are to reduce the height of scanning means.Terminal location at front scan path and reverse side scanning pattern is two scanning areas, promptly is respectively one first scanning area, one second scanning area, and this first scanning area, second scanning area are corresponding to two above-mentioned scanning areas.Below will describe and describe scanning module and automatic sweep apparatus.
For scanning module, have light source, a series of speculum, prism (Lens) and an image sensor at least.Certainly, this image sensor can be electric coupling device (CCD) or contact-type image sensor (CIS) etc.
The light that light source sends sees through scanning platform arrival and is scanned document.When light is reflected by document, see through prism via a series of mirror reflects and arrive image sensor again.This image sensor is a photoelectric converting device, light signal can be converted into the signal of telecommunication.Below can be to the structure chart of scanning module of the present invention, the present invention does not relate to the operation principle of scanning module, so, only its structure is described and illustrates, operation principle belong to those skilled in the art know within appearance, below no longer explanation.
Fig. 1 a is the designs simplification figure of scanning module of the present invention.See also Fig. 1 a, this scanning module 10 has a housing 11.This housing 11 is provided with two optical channels, i.e. first optical channel 111 and second optical channel 121, and be provided with one first light source 112 near being positioned at this first optical channel 111, the other end is provided with a secondary light source 122 near being positioned at this second optical channel 121.Wherein, this first light source 112, secondary light source 122 can be cold-cathode fluorescence lamp or led light source.
Corresponding to this first optical channel 111 be one first speculum 13, and in the light reflection path of this first speculum 13, be provided with one second speculum 14.Be accordingly, corresponding to this second optical channel 121 be one the 3rd speculum 15, and in the light reflection path of the 3rd speculum 15, be provided with one the 4th speculum 16.So, the joint place of the light reflection path of this second speculum 14, the 4th speculum 16 is provided with a maincenter speculum 17.That is to say, can be by the reverberation that second speculum 14 or the 4th speculum 16 penetrate via these maincenter speculum 17 reflections.Described speculum all is arranged on this housing 11.
Therefore what be positioned at these housing 11 central position is a prism 18 (Lens), and what be positioned at its top is a maincenter speculum 17, and the reverberation that is penetrated by this maincenter speculum 17 can pass through this prism 18.Certainly this scanning module 10 must have an image sensor 19, and the light that sees through this prism 18 can arrive on this image sensor 19.
What illustrate is that above-mentioned first to fourth speculum and two optical channels are all along same line of symmetry symmetry, and this maincenter speculum 17, prism 18 and image sensor 19 its centers all are positioned on this line of symmetry.
See also Fig. 1 b, this maincenter speculum 17 is to be movably connected on this housing 11.In the present embodiment, an end of maincenter speculum 17 is set with a gear 220, and the two ends that perhaps are positioned at maincenter speculum 17 respectively are provided with a gear (figure does not show).With 220 engagements of this gear be a tooth bar 221.Be provided with actuator near being positioned at maincenter speculum 17, for example electric helix tube (Solenoid) 20 moves back and forth and drive tooth bar 221 by this electricity helix tube 20, thus the rotation of the maincenter of drive speculum 17.The initial position of this maincenter speculum 17 is primary importance (position that solid line is painted among Fig. 1 b), the reverberation that this position is penetrated by second speculum 14 in order to reflection.When to be needed, electric helix tube 20 starts, and can make this maincenter speculum 17 turn to the second place (position that dotted line is painted among Fig. 1 b) gradually, with the reverberation of reflection by 16 ejaculations of the 4th speculum.The light of maincenter speculum 17 reflections arrives image sensor 19 via prism 18, and this image sensor 19 receives this light signal and is converted into the signal of telecommunication.
In sum, first optical channel 111, first light source 112, first speculum 13, second speculum 14, be in the maincenter speculum 17 of primary importance, and prism 18 and image sensor 19 make scanning platform have one first scanning area 20.
In the same manner, second optical channel 112, secondary light source 122, the 3rd speculum 15, the 4th speculum 16, the maincenter speculum 17 that is in the second place and prism 18 and image sensor 19 make scanning platform have one second scanning area 22.
As aforementioned, this first scanning area is positioned at the terminal in front scan path.Because when single face or two-way front scan, document all can be admitted to this first scanning area, 20 scannings, so maincenter speculum 17 can often be in primary importance.When the needs reverse side scanned, this maincenter speculum 17 can be impelled to turn to the second place.Below will have a detailed description.
This scanning module has two optical channels, is used to read the image information on the scanning platform, but a shared prism and image sensor, it is simple in structure, and is also cheaper on the cost.
Fig. 2 a is designs simplification figure of the present invention.See also Fig. 2 a, the invention provides a kind of bilateral scanning device 200, this bilateral scanning device 200 has a front scan path 1, one end in this front scan path 1 is communicated with a paper feeding plate (Input Tray) 201, the other end then connects one first scanning area 20, be positioned at these first scanning area, 20 upstream positions and be provided with one first roller set 203, in order to transmit document D.One front scan discharge path 2 is connected with this first scanning area 20, and document D is discharged this first scanning area 20 by this front scan discharge path 2; One reverse side scanning pattern, 3 one ends are communicated with front scan discharge path 2, the other end then is communicated with one second scanning area 22, the document of discharging first scanning area can enter this second scanning area 22 via this reverse side scanning pattern, and by reverse side scanning discharge path 4.Wherein, what be positioned at this first scanning area 20, second scanning module, 22 correspondence positions is one scan module 10, and this scanning module 10 can be selected first scanning area 20 or second scanning area 22 are scanned.
Wherein, can be provided with one second roller set 204 in this front scan discharge path 2, in order to document D is expelled to paper discharge tray (Output Tray) 206.In addition, be positioned at the end of reverse side scanning discharge path 4, also be provided with one the 3rd roller set 205, be used for the document of been scanned is expelled to paper discharge tray 206.Certainly, more than describing not is limitation of the invention, but needs to relate to these elements in the following process to the present invention's description.The present invention mainly provides a kind of document transfer path of automatic sweep apparatus 200.
See also Fig. 2 b, document D is taken out seriatim from paper feeding plate (Input Tray) 201, and is transmitted and enter front scan path 1 by comber 202, transmits via first roller set 203 in this path.The downstream position that is positioned near this first roller set 203 is provided with one first detecting element 208.So, when the supply side of document passed through this first detecting element 208, this first detecting element 208 sent signal, and is transferred to the control system of scanner, makes this control system send instruction, made this first light source 121 start, in order to scanning.
When document D enters in first scanning area 20, (shown in Fig. 2 c) scanned in the front of 10 pairs of the document of scanning module, is scanned the document D that finishes then and enters into front scan discharge path 2.
The front end that is arranged in second roller set 204 in this path is provided with a valve 210, this valve 210 often is positioned at the front position (the T1 position shown in Fig. 3 a) of this second roller set 204, document D breaks through the resistance of this valve 210, and make this valve 210 turn to the T2 position shown in Fig. 3 b, after this valve 210 was passed through, this valve 210 can be returned to original T 1 position.So document D is passed through valve 210, and is sent by this second roller set 204 then.
Described above is under the duplex scanning pattern, the situation the during front scan of document, and it is equally applicable under the single-sweep pattern, the scanning of document.
Be positioned at described front scan discharge path 2 and be provided with one second scanning probe element 207 with the place of connection of reverse side scanning pattern 3.So, when document D enters reverse side scanning pattern 3, can run into this second scanning probe element 207, make this second scanning probe element 207 can send the control system of information to scanner, this control system receives this information and sends instruction, makes this electricity helix tube 20 impel this maincenter speculum 17 to turn to the position shown in Fig. 2 e in aforementioned mode.Now is scanned the document D that finishes and will enters into front scan discharge path 2.
See also Fig. 2 d, before the tail end of document D is sent by second roller set 204,204 counter-rotatings of second roller set, the original tail end of document is transformed to supply side, and document D can be run into valve 210 by second roller set, because this valve 210 is positioned at the T1 position.Be transmitted by the document D of loopback and enter reverse side scanning pattern 3.
Before document D continues to be fed and entering second scanning area 22, will run into one the 3rd detecting element 209.When the supply side of document D by the 3rd detecting element 209, it can send the control system of information to scanner, this control system receives this information and sends instruction, and this scanning module 10 is started working, in order to scanning.Document D is carried out reverse side scanning (shown in Fig. 2 e) by second scanning area 22 and during by this scanning module 10.Subsequently, the document is sent to paper discharge tray 206 by the 3rd roller set 205.
Need to prove, when reverse side scans, when the tail end of document D passes through the 3rd detecting element 209, the 3rd detecting element 209 can send the control system of information to scanner, this control system receives information and sends instruction, orders this electricity helix tube 20 to impel the position shown in this maincenter speculum 17 revolution Fig. 2 c behind preset time.
Aforementioned document D by many company's prefaces of duplex scanning is sent to paper discharge tray 206 out of order problem can take place.Before document was sent fully by the 3rd roller set 205, the 3rd roller set 205 was reversed for this reason, and document D is again by loopback, and it is sent to paper discharge tray 206 by second roller set 204 via reverse side scanning pattern 2.Arranged continuously by all processed document that finishes in two sides like this, to such an extent as to out of order phenomenon can not take place.
Fig. 4 has illustrated this bilateral scanning device second embodiment, and this embodiment and the foregoing description are basic identical.Different is that the paper delivery end of this automatic sweep apparatus 200 is provided with a shared roller 211, and is a driving wheel.This shared roller 211 is arranged between front scan discharge path 2 and the reverse side scanning discharge path 4, and is provided with first roller 212, second roller 213 that cooperates with it in these two paths.The roller set that these three rollers constitute has replaced the 3rd roller 205 in the foregoing description.
Fig. 5 has illustrated this bilateral scanning device the 3rd embodiment, and this embodiment and the foregoing description are basic identical.Different is, this bilateral scanning device 200 has an ordering path 5, this ordering path 5 is communicated with this reverse side scanning pattern 3 and reverse side scanning discharge path 4, when document is two-sided be scanned finish after, document can enter front scan discharge path 2 via this path 5 of sorting and be sent to paper discharge tray.The length in ordering path 5 is smaller than the distance of passing through of the document D ordering of describing among first embodiment.Obviously, help improving the treatment effeciency of document.
Fig. 6 has illustrated the 4th embodiment of this bilateral scanning device, and this embodiment and the foregoing description are basic identical.Different is that ordering path 5 is communicated with this front scan path 2 and reverse side scanning discharge path 4 among this embodiment.When document is two-sided be scanned finish after, document can enter front scan discharge path 2 via this path 5 of sorting and be sent to paper discharge tray.The length in ordering path 5 is smaller than the distance of passing through of the document D ordering of describing among first embodiment.Obviously, help improving the treatment effeciency of document.
Fig. 7 has illustrated the maincenter embodiment of this bilateral scanning device, and the present embodiment and first embodiment are basic identical.Different is, this embodiment has the path 5 of independently sorting, this ordering path 5 is communicated with this reverse side scanning pattern 3 and reverse side scanning discharge path 4, when document is two-sided be scanned finish after, document can enter front scan discharge path 2 via this path 5 of sorting and be sent to paper discharge tray.The length in ordering path 5 is smaller than the distance of passing through of the document D ordering of describing among first embodiment.Obviously, help improving the treatment effeciency of document.
Need to prove that the front that relates to is to say under the duplex scanning pattern herein, document is at the face that module scans that is scanned of scanning for the first time, and reverse side then refers to the another side of document.
Claims (10)
1. scanning module, be arranged at the scanning platform inner side, it includes a housing, one image sensor, one prism and a series of stationary mirror, it is characterized in that, described scanning module has the optical channel of two symmetries, and the suitable light source of each optical channel, in described a series of stationary mirror in this housing along being symmetrical distribution, respectively in order to receive and to reflect certainly in the light of each passage, and one the maincenter speculum be provided with versatilely on the symmetrical position that is positioned at a series of stationary mirrors of prism, and can be two rotated position optionally to receive and to reflex to the light that this image sensor comes from above-mentioned symmetrical a series of stationary mirrors, so that this scanning platform constitutes two scanning areas, i.e. first scanning area, second scanning area, this scanning module optionally scan this first scanning area or second scanning area.
2. scanning module according to claim 1 is characterized in that, the described speculum that is positioned at prism position of center line place and is movably connected on this housing is provided with at least one actuator, with so that described speculum is selected different positions.
3. scanning module according to claim 2 is characterized in that, described actuator is an electric helix tube.
4. bilateral scanning device, it includes:
One front scan path, document enters one first scanning area by this front scan path;
One front scan discharge path, document is discharged this first scanning area by this front scan discharge path;
One reverse side scanning pattern, the document of discharging first scanning area enters one second scanning area via this reverse side scanning pattern;
One reverse side scanning discharge path, the document that enters this second scanning area is discharged this second scanning area by this reverse side scanning discharge path; And
A kind of scanning module, be arranged at the scanning platform inner side, it includes a housing, one image sensor, one prism and a series of stationary mirror, described scanning module has the optical channel of two symmetries, and the suitable light source of each optical channel, in described a series of stationary mirror in this housing along being symmetrical distribution, respectively in order to receive and to reflect certainly in the light of each passage, and one the maincenter speculum be provided with versatilely on the symmetrical position that is positioned at a series of stationary mirrors of prism, and can be two rotated position optionally to receive and to reflex to the light that this image sensor comes from above-mentioned symmetrical a series of stationary mirrors, so that this scanning platform constitutes two scanning areas, i.e. first scanning area, second scanning area, this scanning module optionally scan this first scanning area or second scanning area.
5. bilateral scanning device according to claim 1 is characterized in that, it further includes a document ordering path, and the document of finishing duplex scanning can enter the front scan discharge path via this path of sorting and discharge.
6. bilateral scanning device according to claim 1 is characterized in that, described front scan discharge path is provided with a valve with the place of connection of reverse side scanning pattern.
7. bilateral scanning device according to claim 5 is characterized in that, described ordering path is communicated with described reverse side scanning pattern, reverse side scanning discharge path.
8. bilateral scanning device according to claim 5 is characterized in that, described ordering path is communicated with reverse side scanning discharge path, front scan discharge path.
9. bilateral scanning device according to claim 4 is characterized in that, is provided with a front scan detecting element between described front scan path and described scanning area; Be positioned at described front scan discharge path and be provided with one second scanning probe element with the place of connection of reverse side scanning pattern.
10. bilateral scanning device according to claim 8 is characterized in that, is positioned at the described second scanning area upstream and is provided with one the 3rd scanning probe element near the described second scanning area front end place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100297807A CN101330560A (en) | 2008-07-24 | 2008-07-24 | Scanning module group and bilateral scanning apparatus with the same |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100297807A CN101330560A (en) | 2008-07-24 | 2008-07-24 | Scanning module group and bilateral scanning apparatus with the same |
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| CN101330560A true CN101330560A (en) | 2008-12-24 |
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| CNA2008100297807A Pending CN101330560A (en) | 2008-07-24 | 2008-07-24 | Scanning module group and bilateral scanning apparatus with the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025884B (en) * | 2009-09-11 | 2013-01-02 | 致伸科技股份有限公司 | Double-sided scanning device |
| CN107209265A (en) * | 2015-03-20 | 2017-09-26 | 摸索科技有限公司 | light detection and ranging device |
-
2008
- 2008-07-24 CN CNA2008100297807A patent/CN101330560A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025884B (en) * | 2009-09-11 | 2013-01-02 | 致伸科技股份有限公司 | Double-sided scanning device |
| CN107209265A (en) * | 2015-03-20 | 2017-09-26 | 摸索科技有限公司 | light detection and ranging device |
| CN107209265B (en) * | 2015-03-20 | 2022-10-11 | 摸索科技有限公司 | Optical detection and distance measurement device |
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Open date: 20081224 |