CN2280391Y - Single lamp tube, reflection-transmission and platform type image scanning device - Google Patents
Single lamp tube, reflection-transmission and platform type image scanning device Download PDFInfo
- Publication number
- CN2280391Y CN2280391Y CN 97209833 CN97209833U CN2280391Y CN 2280391 Y CN2280391 Y CN 2280391Y CN 97209833 CN97209833 CN 97209833 CN 97209833 U CN97209833 U CN 97209833U CN 2280391 Y CN2280391 Y CN 2280391Y
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- original text
- image scanning
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- Expired - Lifetime
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- 230000003287 optical effect Effects 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000011514 reflex Effects 0.000 claims description 10
- 230000035515 penetration Effects 0.000 claims description 9
- 238000002310 reflectometry Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 8
- 238000003384 imaging method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000003760 hair shine Effects 0.000 description 1
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Abstract
The utility model relates to a single lamp tube reflection and transmission type platform image scanning device, and the utility model uses the same group of light sources to scan, reflect and penetrate documents; the utility model adopts a light splitter which can reflect partially and transmit partially the light source and a movable shielding cover, and each optical member is fixed; the reflective document and the penetrating document respectively use one light source, one group of reflecting mirrors and the reflected light (or transmitted light) of the light splitter to enter an image snatching device to sense images. The utility model reduces the volume of a machine table and assemblage cost of parts and can obtain high precision and imaging quality.
Description
The utility model relates to a kind of single lamp tube type reflective-transmissive formula flatbed device of image scanning, particularly relates to a kind ofly utilizing same group of light source to reflect original text and penetrating original text scanning and all optical components all are fixed flatbed device of image scanning.
Existing flatbed device of image scanning generally is exclusively used in the scanning reflection original text, also there is minority to be used for scanning and penetrates original text, but if make a scanning means have scanning reflection original text and the function that penetrates original text simultaneously, then need install a transducer additional, the assembly of this transducer is many and cost is high.
At this shortcoming, to apply for disclosing a kind of flatbed device of image scanning in No. 279528 (date of declaration is on June 26th, 1996) in Taiwan, it need not install transducer additional promptly has the scanning reflection original text and penetrates the original text function.Fig. 1 illustrates its optical facilities configuration, disposes when wherein Fig. 1 a is the scanning reflection original text, and Fig. 1 b disposes when penetrating original text for scanning.
In Fig. 1 a, light source 11 starts, and light source 13 extinguishes.Light source 11 emitted light shine desires scanning reflection original text 10 back reflections to speculum 15, the light source that the mirror 15 that is reflected reflects reflexes to concentrating element 16 through speculum 12 and 14 again, light through concentrating element 16 is received by image capturing element 18, finishes the picked-up of image data.
Penetrate original text 20 if will scan, image reflecting element 17 among Fig. 1 a is switched to position shown in Fig. 1 b, and allow light source 11 extinguish, light source 13 starts, like this by light source 13 emitted light penetrations to scan penetrate original text 20 after be incident upon speculum 19, the light that the mirror 19 that is reflected reflects reflexes to concentrating element 16 through image reflecting element 17, speculum 12 and 14 more in regular turn, and the light of process concentrating element 16 is received by image capturing element 18, finishes the picked-up of image data.Must notice that the length of the optical path under the configuration of this optical facilities is satisfied the scanning reflection original text and penetrated two kinds of situations of original text equates fully.
In addition, applying for disclosing in No. 280479 (date of declaration is on July 1st, 1996) another in Taiwan can be under the situation that does not install transducer additional, has the scanning reflection original text and penetrates the configuration of the optical facilities of two kinds of functions of original text.As shown in Figure 2, wherein image reflecting element 35 can rotate.When scanning reflection original text 10, light source 31 starts, light source 32 extinguishes, image reflecting element 35 is switched to the position shown in the imaginary line among the figure, light source 31 emitted light shine wants scanning reflection original text 10 back reflections to speculum 33, the light that the mirror 33 that is reflected reflects reflexes to concentrating element 16 through speculum 34 and image reflecting element 35 again, and the light of process concentrating element 16 is received by image capturing element 18, finishes the picked-up of image data.
When scanning when penetrating original text 20, image reflecting element 35 is rotated into position shown in the solid line among the figure, and light source 31 extinguishes, light source 32 starts, be incident upon speculum 37 after penetrating original text 20 by light source 32 emitted light penetration desire scannings like this, the light that the mirror 37 that is reflected reflects reflexes to concentrating element 16 through speculum 36 and image reflecting element 35 more in regular turn, and the light of process concentrating element 16 is received by image capturing element 18, finishes the picked-up of image data.
Though above-mentioned two kinds of prior aries can be under the situation that does not add transducer, have the scanning reflection original text and penetrate two kinds of functions of original text, but its shortcoming is to rotate a part of element in the optical facilities (35 among 17 among Fig. 1 and Fig. 2), switch to penetrate in scanning between original text and two kinds of patterns of reflection original text, and adopt rotating manner to come switching position to be easy to occur error, as long as a little error promptly may cause great influence to image output resolution, especially increase with access times, error will be more serious, can influence the quality of image.Owing to use two groups of scanning light sources, can increase the board volume simultaneously.
The purpose of this utility model is to provide a kind of use same group of scanning light source, shared same reflective optical devices, and its all optical components all are maintained fixed, can the scanning reflection original text and penetrate original text and can obtain flatbed device of image scanning than the image of good quality.
The purpose of this utility model is achieved in that promptly provides a kind of single lamp tube type reflective-transmissive formula flatbed device of image scanning, and it comprises: a light source that supplies reflection type image and penetration image scan to use; One reflects away the optical splitter that another part transmission is gone out with an incident light part; One reflexes to first reflector group of described optical splitter with reflection type image; One reflexes to second reflector group of described optical splitter with the penetration image; One will be from the concentrating element of the light focusing of this optical splitter; One picked-up is through the image capturing element of the light of described concentrating element focusing; One instructs mobilely according to the user, and select to cover from the first reflector group light or from the mask of the second reflector group light.
The advantage of the utility model device is, its scanning reflection original text and penetrate the shared one group of scanning light source of original text, reduce board volume and part assembly cost, and it need not move any optical component, only need mobile cover the mask of optical track, can avoid in the prior art obtaining the degree of precision and the quality of image because of the image reflection unit switches the trueness error that causes.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described, wherein:
Each element state in optical facilities when Fig. 1 a is an existing flatbed device of image scanning scanning reflection original text image;
Each element state in optical facilities when Fig. 1 b penetrates original text for existing flatbed device of image scanning scanning;
Fig. 2 is another existing flatbed device of image scanning scanning reflection original text or each element state in the optical facilities when penetrating original text;
Fig. 3 is the three-dimensional exploded view of a flatbed device of image scanning;
The state of each element in optical facilities when Fig. 4 a is the scanning of the utility model flatbed device of image scanning reflected image;
The state of each element in optical facilities when Fig. 4 b scans for penetrating among Fig. 4 a.
Please refer to Fig. 3, is the three-dimensional exploded view of a flatbed device of image scanning, mainly comprises loam cake 1, shell 2, optical facilities 3, guide 4, transmission mechanism 5 and base 6.Wherein guide 4 moves in order to guided optical mechanism 3, so that in optical facilities 3 places of arrival, reads the reflection original text or penetrates image data on the original text.Transmission mechanism provides mobile power, and cooperates guide 4 that optical facilities 3 are moved.
With reference to Fig. 4 a or Fig. 4 b, in the flatbed device of image scanning of the present utility model, but optical facilities mainly comprise reflection original text image and penetrate the loam cake 11 of original text image scan with light source 41, speculum 42,43,44,46,47, concentrating element 16 and image capturing element 18, an optical splitter 45, one removable mask 48 and a reflection source 41.Wherein optical splitter 45 is one can be with the reflection of its incident light part, the optical component of another part lens.
When scanning reflection original text 10, shown in Fig. 4 a, reflection original text 10 and movable mask 48 are placed the position shown in the figure, start light source 41, the reflection original text 10 that emitted light shines desire scanning is incident upon speculum 46 again, and the light of mirror 46 reflections that are reflected reflexes to optical splitter 45 through speculum 47 again, enter the light part transmission of this optical splitter 45, another part is reflected onto concentrating element 16, and the light of process concentrating element 16 is received by image capturing element 18, finishes the picked-up of image data.Other one group of light crested cover 48 through speculum 42 and 43 reflections blocks.
Scan when penetrating original text 20, shown in Fig. 4 b, to penetrate original text 20 and movable mask 48 places the position shown in the figure, start light source 41, what emitted light shone that loam cake 11 back reflections pass desire scanning penetrates original text 20 back reflections to speculum 42, the light that the mirror 42 that is reflected reflects reflexes to optical splitter 45 through speculum 43 and 44 again, a light part that enters this optical splitter 45 is reflected, a part is transmitted through concentrating element 16 in addition, light through concentrating element 16 is received by image capturing element 18, finishes the picked-up of image data.Other one group of light crested cover 48 through speculum 46 and 47 reflections blocks.
As mentioned above, speculum 46 and 47 constitutes first reflector group, is used for reflection type image; Speculum 42,43 and 44 constitutes second reflector group, is used for the penetration image.The optical path length that on the structure configuration of these speculums is designed to reflection type image (entering image capturing element 18 among Fig. 4 a) and penetration image (entering image capturing element 18 among Fig. 4 b) equates.
Above-mentioned device of image scanning only need utilize a mask in use, can determine scanning reflection original text 10 or penetrate original text 20.Its biggest advantage is that each element in the optical facilities is all fixing, therefore is difficult for producing optical parallax.The unique cost that must pay is, owing to enter the light portion reflection of optical splitter 48, the part transmission, thus when entering concentrating element 16, lost light the part luminous intensity, but the luminous intensity mat of the loss increase intensity of light source is for example installed reflector plate and is compensated.
The better embodiment of above-mentioned optical splitter is that the size of reflectivity and transmissivity is between 20% to 80%.
The utility model also can paper feeding mode be fixed optical facilities, finishes scanning with the paper move mode.
Claims (6)
1, a kind of single lamp tube type reflective-transmissive formula flatbed device of image scanning is characterized in that it comprises: a light source that supplies reflection type image and penetration image scan to use; One reflects away the optical splitter that another part transmission is gone out with an incident light part; One reflexes to first reflector group of described optical splitter with reflection type image; One reflexes to second reflector group of described optical splitter with the penetration image; One will be from the concentrating element of the light focusing of described optical splitter; One picked-up is through the image capturing element of the light of described concentrating element focusing; One instructs mobilely according to the user, and select to cover from the first reflector group light or from the mask of the second reflector group light.
2, flatbed device of image scanning as claimed in claim 1, it is characterized in that, described device also comprises: the optical facilities that guide described element to constitute are moved, and read the guide that reflects original text or penetrate the image data on the original text in described optical facilities place of arrival; Mobile power is provided, and the transmission mechanism that cooperates described guide that described optical facilities are moved.
3, flatbed device of image scanning as claimed in claim 1 is characterized in that, described first reflector group and described second reflector group are so that the mode of reflection type image and penetration image equivalent optical path disposes.
4, flatbed device of image scanning as claimed in claim 1 or 2 is characterized in that, the reflectivity of described optical splitter and transmissivity size are between 20% to 80%.
5, flatbed device of image scanning as claimed in claim 1 or 2 is characterized in that, described mask is to drive or drive with screw rod with motor.
6, flatbed device of image scanning as claimed in claim 1 or 2 is characterized in that, described optical splitter is spectroscope or Amici prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97209833 CN2280391Y (en) | 1997-03-03 | 1997-03-03 | Single lamp tube, reflection-transmission and platform type image scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97209833 CN2280391Y (en) | 1997-03-03 | 1997-03-03 | Single lamp tube, reflection-transmission and platform type image scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2280391Y true CN2280391Y (en) | 1998-04-29 |
Family
ID=33928917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97209833 Expired - Lifetime CN2280391Y (en) | 1997-03-03 | 1997-03-03 | Single lamp tube, reflection-transmission and platform type image scanning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2280391Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354877C (en) * | 2001-03-16 | 2007-12-12 | 宇东光学公司 | Light-chopping drive type image reading device |
| US7589870B2 (en) | 2003-08-13 | 2009-09-15 | Nien-Hua Pai | Dual-mode scanner capable of performing transmissive and reflective scanning with single side lamp |
-
1997
- 1997-03-03 CN CN 97209833 patent/CN2280391Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354877C (en) * | 2001-03-16 | 2007-12-12 | 宇东光学公司 | Light-chopping drive type image reading device |
| US7589870B2 (en) | 2003-08-13 | 2009-09-15 | Nien-Hua Pai | Dual-mode scanner capable of performing transmissive and reflective scanning with single side lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YUDONG OPTICAL CO., LTD. Free format text: FORMER OWNER: HONGYOU SCIENCE AND TECHNOLOGY CO LTD Effective date: 20070105 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070105 Address after: Delaware Patentee after: Hongyou Science & Technology Co., Ltd. Address before: Hsinchu Science Park, Taiwan Patentee before: Hongyou Science and Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |