CN1142521C - Light source for penetrating manuscript with light guide plate - Google Patents
Light source for penetrating manuscript with light guide plate Download PDFInfo
- Publication number
- CN1142521C CN1142521C CNB001368451A CN00136845A CN1142521C CN 1142521 C CN1142521 C CN 1142521C CN B001368451 A CNB001368451 A CN B001368451A CN 00136845 A CN00136845 A CN 00136845A CN 1142521 C CN1142521 C CN 1142521C
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- Prior art keywords
- light source
- guide plate
- light
- light guide
- manuscript
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- 230000000149 penetrating effect Effects 0.000 title claims abstract description 47
- 230000003287 optical effect Effects 0.000 claims abstract description 3
- 239000003086 colorant Substances 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000004508 polar body Anatomy 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
The invention discloses a light source with light guide plate for penetrating manuscript, which comprises: a shell, which can be placed on the scanning platform; the light source is arranged in the shell, the light guide plate is arranged in the shell and on a monochromatic light side of the light source, the three-color filter device is arranged on an optical path from the light source to the light guide plate, the switching mechanism is connected to the three-color filter device, and is used for controlling the cutting of the three-color filter device, so that light transmitted to the scanning platform is monochromatic light of three color lights, the components form the light source for penetrating the manuscript with the light guide plate, and the light source for penetrating the manuscript with the light guide plate can complete a scanning action of a color penetrating the manuscript.
Description
Technical field
The present invention relates to a kind of manuscript penetrating light source, relate in particular to a kind of manuscript penetrating light source that is applied on the image scanner and has light guide plate with light guide plate with light guide plate.
Background technology
Popular gradually along with the continuous progress of manufacturing technology and price, image scanner become PC indispensable peripheral equipment, and along with the increase of the processing speed of PC own and user lifting for the scan-image quality requirements, market can provide scanned kind also to increase for image scanner thereupon, and for example image scanner can scan reflecting original text (for example books) and penetrating original text (for example egative film) respectively.As shown in Figure 1: be known contact-type image sensing device (Contact Image Sensor, CIS) organigram of flat-bed color image scanners that module is finished of utilizing; Wherein the contact-type image sensing device module 11 under scanning platform 10 is mainly with three primary colors light source (RGB light source) 111, lens pillar (Rod Lens) 112 and 113 formations of sensor chip (sensor chip), so can the colour reflective original text on the scanning platform 10 be scanned, and prepare penetrating original text when scanning on the scanning platform 10 as the user, then must install one additional and penetrate original text Mk (Transparency Adapter, TA) 12 provide and penetrate light, but penetrate the original text Mk now and all can only provide monochromatic source, therefore can't penetrate original text to colour carries out chromoscan; And how to improve the drawback of described known techniques, be those skilled in the art's problem anxious to be solved.
Summary of the invention
The purpose of this invention is to provide a kind of manuscript penetrating light source with light guide plate, it has and can penetrate the function that original text carries out chromoscan to colour.
For realizing described purpose, technical scheme provided by the invention is: the manuscript penetrating light source with light guide plate comprises: a housing can be placed on this scanning platform; One light source is located in this housing, send scanning with light to this scanning platform; One light guide plate is located in this housing and a side of this light source, is directed at this scanning platform in order to the light that light source sent is diffused into after planar; Three look filter disc devices are located at this light source to the optical path of this light guide plate, make this light source can tell three coloured light; And a switching mechanism, be connected in this three looks filter disc device, control this three looks filter disc device and switch, be three coloured light a kind of monochromatic light wherein with the light that is sent to this scanning platform, and then finish the scanning motion that a colour penetrates original text.
This light source can be a cold cathode fluorescent lamp in the described manuscript penetrating light source with light guide plate.
This three looks filter disc device is a RGB tricolor filter device in the described manuscript penetrating light source with light guide plate.
This switching mechanism can be an electro-motor (Motor) and moves in order to drive this three looks filter disc device in the described manuscript penetrating light source with light guide plate.
The another kind that provides of the present invention has the manuscript penetrating light source of light guide plate, be applied to an image scanner on, this image scanner includes an one scan platform and an image capture module, this manuscript penetrating light source with light guide plate then comprises: a housing can be placed in that this scanning is flat to be contained; One light guide plate is located at this housing, is directed at this scanning platform in order to being diffused into by the light that its side enters after planar; One three-color light source is located at three sides of this light guide plate, and three coloured light lines of the scanning usefulness of sending are entered by the side of this light guide plate; And a switching mechanism, being connected in this three-color light source, control is switched this three-color light source, and making the light that is sent to this scanning platform is a kind of monochromatic light in three coloured light; And then finish the scanning motion that a colour penetrates original text.
Have as described that this three-color light source comprises following member in the manuscript penetrating light source of light guide plate: three monochromatic fluorescent tubes; And the RGB tricolor filter, corresponding these monochromatic fluorescent tubes and being provided with.
Have as described that this three-color light source can be RGB three primary colors cold cathode fluorescent lamp in the manuscript penetrating light source of light guide plate.
Have as described that this three-color light source can be RGB three primary colors light emitting diode matrix in the manuscript penetrating light source of light guide plate.
Have as described that this switching mechanism is a controlled single pole multiple throw in the manuscript penetrating light source of light guide plate, light a kind of monochromatic light in this three-color light source in order to control.
The manuscript penetrating light source that has light guide plate is as described used in the image scanner on it, and this image capture module is a contact-type image sensing device (Contact Image Sensor, a CIS) module.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is: be known contact-type image sensing device (Contact Image Sensor, CIS) organigram of flat-bed color image scanners that module is finished of utilizing;
Fig. 2 is the organigram with preferred embodiment of manuscript penetrating light source of light guide plate provided by the invention.
Fig. 3 is the organigram with another preferred embodiment of manuscript penetrating light source of light guide plate provided by the invention.
Fig. 4 is the organigram with another preferred embodiment of manuscript penetrating light source of light guide plate provided by the invention.
Fig. 5 is the organigram with another preferred embodiment of manuscript penetrating light source of light guide plate provided by the invention.
Embodiment
Embodiment 1: as shown in Figure 2: image scanner 2 includes an one scan platform 20 and an image capture module 21, and this manuscript penetrating light source 22 with light guide plate is arranged in the housing 221, the light source of being finished with cold cathode fluorescent lamp 222, RGB tricolor filter device 223, the switching mechanism 224 that electro-motor (motor) is formed is arranged on a side of this manuscript penetrating light source with light guide plate 22, light guide plate (Light guide) 225 is arranged on the opposite side of this manuscript penetrating light source with light guide plate 22, the light that this light guide plate 225 is sent this light source 222 with manuscript penetrating light source 22 of light guide plate diffuses into and is directed to this scanning platform 20 after planar, and switching mechanism 224 control and drive this RGB tricolor filter device 223 and switch, make this light source 222 can tell the RGB primaries, and then finish the scanning motion that a colour penetrates original text.
Embodiment 2: as shown in Figure 3: wherein image scanner 2 includes an one scan platform 20 and an image capture module 21, this manuscript penetrating light source 22 with light guide plate comprises housing 221 and light guide plate (Light guide) 225, this light guide plate (Light guide) 225 is put the inside at housing 221, this light source with manuscript penetrating light source 22 of light guide plate is arranged on a side of this light guide plate (Lightguide) 225, described manuscript penetrating light source 22 with light guide plate is by trichromatic cold cathode fluorescent lamp of RGB or the trichromatic luminous utmost point pipe array (LED Array) 31 of RGB, 32,33 form, and switching mechanism 224 can be finished with controlled single pole multiple throw, the switching of the light on and off of its control trichromatic cold cathode fluorescent lamp of RGB or the trichromatic luminous polar body array of RGB (LED Array), make light guide plate 225 diffusions be sent to this scanning platform light and can be a kind of primitive color light in the primaries in turn, and then can finish the scanning motion that a colour penetrates original text.The main body of described light guide plate (Light guide) 225 is the clear plastic material, it is respectively equipped with the structure of reflection horizon and diffusion layer (diffuser) up and down, for improving the uniformity coefficient of light source diffusion, can change the density or the size of diffusion point on the diffusion layer, to reduce apart from light source diffusion dot density (or area) nearby, light intensity with the far and near zone of distance light source is consistent with diffusion dot density (or area) with light intensity, reaches uniformly light-emitting.
Embodiment 3: as shown in Figure 4: the technical scheme that the embodiment that adopts in the present embodiment and embodiment 2 provide different be in: light guide plate (Light guide) 225 position is seated in the inside of housing 221, and the trichromatic cold cathode fluorescent lamp of RGB or the trichromatic light-emitting diodes volume array of RGB (LED Array) 31,32,33 are separately positioned on three sides of this light guide plate 225, its three coloured light lines that send scanning usefulness are entered by three sides of this light guide plate respectively, the formation of other member is identical with embodiment 2 with the position setting, does not repeat them here.
Embodiment 4: as shown in Figure 5: the technical scheme that the embodiment that adopts in the present embodiment and embodiment 2 or embodiment 3 provide different be in: light source 222 is constituted so that 54,55,56 of three white cold cathode fluorescent lamp 51,52,53 and RGB tricolor filters are common, as shown in Figure 5, be arranged at three sides of this light guide plate 225 respectively, the formation of other member and position are provided with identical with embodiment 2 or embodiment 3, do not repeat them here.
The present invention is in the manuscript penetrating light source with light guide plate that described embodiment provided; all can send the required primaries of chromoscan; effectively improve tradition and penetrate defective and the drawback that the original text Mk only can provide monochromatic source; penetrate original text for colour and carry out chromoscan; all the technical program is carried out careful modification and qualification, still belong to the protection domain of this patent.
Claims (11)
1, a kind of manuscript penetrating light source with light guide plate, be applied on the image scanner, this image scanner includes an one scan platform and an image capture module, it is characterized in that: this manuscript penetrating light source with light guide plate comprises: a housing, one light source, one light guide plate, three look filter disc devices and a switching mechanism, described housing are seated on this scanning platform; Described light source is arranged in this housing, send scanning with light to this scanning platform; Described light guide plate is arranged in this housing and is positioned at a side of this light source, is directed to this scanning platform in order to the light that light source sent is diffused into after planar; Described three look filter disc devices are located at this light source to the optical path of this light guide plate, make this light source can tell three coloured light; Described switching mechanism is connected in this three looks filter disc device, and control is switched this three looks filter disc device, and making the light that is sent to this scanning platform is three coloured light a kind of monochromatic light wherein, and then finishes the scanning motion that a colour penetrates original text.
2, the manuscript penetrating light source with light guide plate as claimed in claim 1, it is characterized in that: described light source can be a cold cathode fluorescent lamp.
3, the manuscript penetrating light source with light guide plate as claimed in claim 1 is characterized in that: described three look filter disc devices can be a RGB tricolor filter device.
4, the manuscript penetrating light source with light guide plate as claimed in claim 1 is characterized in that: described switching mechanism can be an electro-motor (motor), drives this three looks filter disc device and moves.
5, the manuscript penetrating light source with light guide plate as claimed in claim 1 is characterized in that: the described image capture module that is applied in the image scanner is a contact-type image sensing device (Contact Image Sensor, a CIS) module.
6. the manuscript penetrating light source with light guide plate is applied on the image scanner, and this image scanner includes an one scan platform and an image capture module; It is characterized in that: this manuscript penetrating light source with light guide plate comprises: a housing, and a light guide plate, a three-color light source, and a switching mechanism, described housing are seated on this scanning platform; Described light guide plate is arranged in this housing, and described three-color light source is located at a side of three these light guide plate respectively, and three coloured light lines of the scanning usefulness of sending are entered by the side of this light guide plate; The light that light source sent diffused into be directed to this scanning platform after planar; Described switching mechanism is connected in this three-color light source, controls the switching of this three-color light source, and making the light that is sent to this scanning platform is three coloured light a kind of monochromatic light wherein, and then finishes the scanning motion that a colour penetrates original text.
7. the manuscript penetrating light source with light guide plate as claimed in claim 6; It is characterized in that: described three-color light source comprises following member: three monochromatic fluorescent tubes; And the RGB tricolor filter, to should the monochromatic burner pipe and be provided with.
8. the manuscript penetrating light source with light guide plate as claimed in claim 6 is characterized in that: described three-color light source can be RGB three primary colors cold cathode fluorescent lamp.
9. the manuscript penetrating light source with light guide plate as claimed in claim 6 is characterized in that: described three-color light source can be RGB three primary colors light-emitting diodes volume array.
10. the manuscript penetrating light source with light guide plate as claimed in claim 6 is characterized in that: described switching mechanism can be a controlled single pole multiple throw, the acute a kind of monochromatic light lighted in this three-color light source of control.
11. the manuscript penetrating light source with light guide plate as claimed in claim 6 is characterized in that: described this image capture module is a contact-type image sensing device module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001368451A CN1142521C (en) | 2000-12-29 | 2000-12-29 | Light source for penetrating manuscript with light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001368451A CN1142521C (en) | 2000-12-29 | 2000-12-29 | Light source for penetrating manuscript with light guide plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1361499A CN1361499A (en) | 2002-07-31 |
| CN1142521C true CN1142521C (en) | 2004-03-17 |
Family
ID=4597538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001368451A Expired - Fee Related CN1142521C (en) | 2000-12-29 | 2000-12-29 | Light source for penetrating manuscript with light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1142521C (en) |
-
2000
- 2000-12-29 CN CNB001368451A patent/CN1142521C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1361499A (en) | 2002-07-31 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20070112 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070112 Address after: Delaware Patentee after: Hongyou Science & Technology Co., Ltd. Address before: Hsinchu city of Taiwan Province Patentee before: Hongyou Science and Technology Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040317 Termination date: 20121229 |