CN200969619Y - Scanner device with floating lighting source - Google Patents
Scanner device with floating lighting source Download PDFInfo
- Publication number
- CN200969619Y CN200969619Y CN 200620133177 CN200620133177U CN200969619Y CN 200969619 Y CN200969619 Y CN 200969619Y CN 200620133177 CN200620133177 CN 200620133177 CN 200620133177 U CN200620133177 U CN 200620133177U CN 200969619 Y CN200969619 Y CN 200969619Y
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- Prior art keywords
- transparent plate
- light source
- scanning means
- lighting source
- module
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Abstract
A scan device with floating light source includes a device shell, a transparent plate part, an image taking module, a light source module and an elastic component. The transparent plate part for bearing the original file is arranged at an opening of the device shell to cover the opening. The image taking module is movably installed in the device shell towards the first direction to take the image of the original file. The light source module is moveably installed at the image taking module towards the second direction actually vertical with the first direction to exhale the light to project the original file. The elastic component is connected with the power light module and the image taking module to pull the light source module to the transparent plate part, and to make the transparent plate part keep prearranged distance with the light source module on the condition that the transparent plate part is not bear certain force. When the transparent plate part bears the certain force, the transparent plate part contacts with the light source module, but the transparent plate part can still keep the free movement thereof.
Description
Technical field
The utility model is the scanning means that has floating lighting source about a kind of, especially about a kind ofly reducing noise, reducing cost and the scanning means with floating lighting source of weight reduction.
Background technology
Image capture unit, for example scanner mainly is to utilize irradiate light on file, and make reflection or penetrate after light enter optical pickup device and resolve to carry out optics.For example, have scan module on the scanner usually, scan module has light-emitting device, such as cold cathode fluorescent lamp or the light-emitting diode wire light-emitting device that cooperates the leaded light post to be formed.Light-emitting device emits beam and exposes to the reflection original text, the reflection original text with light reflected back scan module for image sensor sensor light signal.The luminosity that improves light-emitting device can effectively shorten the time of scanning but can shorten the life-span and the consumes energy of light-emitting device.
Because square being inversely proportional to of the distance of the light-source brightness of certain position and light source and this position is so can effectively improve the brightness that is radiated at the light source on the original copy with the as far as possible close scanning window of light-emitting device.For example, United States Patent (USP) the 6th, 229 No. 636, the 6th, 654, No. 149 and the 6th, 373, promptly discloses a kind of fluorescent tube to be attached to the image capture unit that scanning motion is carried out in the scanning window below for No. 613.In these patents, because fluorescent tube need be attached to the scanning window below, so lamp tube ends need be installed the wear-resistant components with low-friction coefficient and high precision.Because fluorescent tube need critically be attached to the scanning window below, so must be dwindled because of the tolerance that deflection allowed that manufacture process produced with scanning window and the relevant plastics materials and parts of fluorescent tube are installed, fluorescent tube is moved smooth-goingly, and can absorb effectively because be carried on the distortion of the scanning window that the weight of the original copy (such as books) on the scanning platform or user firmly press down original copy and produced.
In addition, because fluorescent tube must keep in touch with scanning window all the time, so can generation make us unhappy noise when sliding.Even on scanning window, coat lubricating oil, also can't abate the noise fully, this also can't satisfy the demand of office of low noise of leveling off to day by day.
On the other hand, the time normally be not positioned at original position, and the scan module that is positioned at original position is covered by the housing of scanner normally because scan module is not carried out scanning.Because fluorescent tube must keep in touch with scanning window all the time, must cause the phenomenon of beating otherwise have fluorescent tube because of the section difference even as big as containing the FROM of scan module so constitute the transparent plate (such as sheet glass) of scanning window.Therefore, employed transparent plate can increase the weight of cost and scanner.
United States Patent (USP) the 6th, 507, No. 416 and the 6th, 870, No. 647 a kind of scanning means of adjusting lighting tube brightness of exposure of United States Patent (USP) wherein by adjusting the distance between fluorescent tube and the scanning window, can be adjusted the brightness of fluorescent tube, to adapt to the demand of various different occasions.Yet the distance adjustment between fluorescent tube and the scanning window is not to be applicable to all occasions, and needs good and precise positioning function in order to the adjusting mechanism of adjusting distance, and is with high costs.
The utility model content
Therefore, a purpose of the present utility model provides and a kind ofly can effectively reduce noise, reduces cost and the scanning means with floating lighting source of weight reduction.
For achieving the above object, the utility model provides a kind of scanning means with floating lighting source, and it comprises housing, transparent plate, image acquisition module, light source module and elastic parts.Housing has opening.Transparent plate is installed in the opening part of housing, and in order to seal opening, transparent plate is in order to the carrying original copy.Image acquisition module can be installed in the housing movably towards first direction, in order to the image of acquisition original copy.Light source module can be installed on the image acquisition module movably towards second direction, and in order to the irradiation original copy that emits beam, second direction is in fact perpendicular to first direction.Elastic parts connects light source module and image acquisition module, in order to light source module is pushed to transparent plate, and when transparent plate is not subjected to specific function power, make transparent plate and light source module keep preset distance, transparent plate is contacted with light source module.
In above-mentioned scanning means, when transparent plate was subjected to specific function power, transparent plate can contact with light source module and light source module is moved predetermined altitude.
Description of drawings
Fig. 1 shows the schematic diagram according to first state of the scanning means of the utility model first embodiment.
Fig. 2 shows the schematic diagram according to second state of the scanning means of the utility model first embodiment.
One example of Fig. 3 display light source module.
Another example of Fig. 4 display light source module.
Second embodiment of Fig. 5 display light source module and image acquisition module.
Fig. 6 and 7 partial schematic diagrams that show according to the scanning means of the utility model the 3rd embodiment.
Fig. 8 and 9 partial schematic diagrams that show according to the scanning means of the utility model the 4th embodiment.
Embodiment
Fig. 1 and 2 shows according to first state of the scanning means of the utility model first embodiment and the schematic diagram of second state.Shown in Fig. 1 and 2, a kind of scanning means 1 with floating lighting source of present embodiment comprises housing 10, transparent plate 20, image acquisition module 30, light source module 40 and elastic parts 50.
Connect light source module 40 and image acquisition module 30, in order to light source module 40 being pushed to transparent plate 20, and when transparent plate 20 is not subjected to specific function power, make transparent plate 20 and light source module 40 keep preset distance D1, such as 1-2mm.So, when transparent plate 20 is subjected to specific function power, transparent panel spare 20 is contacted with light source module 40.Because the user can firmly move original copy 2 when original copys 2 such as scanning such as books usually, can down be out of shape transparent plate 20 owing to the elasticity of housing 10 and transparent plate 20 and touch light source module 40 this moment.When the change of specific function power made deflection become bigger greatly, transparent plate 20 contacted with light source module 40 and light source module 40 is moved predetermined altitude D2.Above-mentioned specific function power can be that staff sees through original copy 2 and is applied to strength on the transparent plate 20, can be that staff sees through loam cake (not shown) and original copy 2 and is applied to strength on the transparent plate 20, also can be that its distortion also can be because the individual difference that tolerance produced of housing 10 in manufacture process in addition because housing 10 distortion are applied to the strength on the transparent plate 20.
Therefore, when the user did not pressurize to original copy 2, transparent plate 20 did not contact mutually with light source module 40.Therefore, the maximum length L2 that transparent plate 20 can move at first direction less than image acquisition module 30 in the length L 1 of first direction, when just image acquisition module 30 is in state shown in dotted line with light source module 40, there is no transparent plate 20 directly over it and exist.Like this, the size of transparent plate 20 be can dwindle, and then the cost and the weight of scanning means 1 reduced.
For fear of light source module 40 when crossing over the intersection 12 of transparent plate 20 and housing 10 because the collision that 20 distortion of transparent plate are produced, scanning means 1 can further comprise guide member 60, it is located at the intersection 12 of transparent plate 20 and housing 10, and connects transparent plate 20 and housing 10.Guide member 60 has the inclined-plane, crosses over intersection 12 in order to guiding image acquisition module 30 when transparent plate 20 is subjected to specific function power and light source module 40.
One example of Fig. 3 display light source module.As shown in Figure 3, light source module 40 comprises pedestal 41 and fluorescent tube 43.Pedestal 41 is provided with or is formed with the protuberance 42 near transparent plate 20.Fluorescent tube 43 can be a cold cathode fluorescent lamp, and it is installed on the pedestal 41.
Another example of Fig. 4 display light source module.As shown in Figure 4, light source module 40 comprises pedestal 41, point-source of light 44 and leaded light post 45.Pedestal 41 is provided with or is formed with the protuberance 42 near transparent plate 20.Both are installed in point-source of light 44 and leaded light post 45 on the pedestal 41, in order to produce light.Point-source of light 44 can be a light-emitting diode, cooperates leaded light post 45 can produce linear light source.
Second embodiment of Fig. 5 display light source module and image acquisition module.As shown in Figure 5, the scanning means 1 of present embodiment further comprises limited part 70, and it connects light source module 40 and image acquisition module 30, in order to the distance between restriction light source module 40 and the image acquisition module 30 below maximum determined distance Dmax.Limited part 70 provide the D1 of the preset distance under the state that helps control chart 1, too high to prevent that light source module 40 is lifted, but do not influence the action that light source module 40 is pressed down, in order to avoid preset distance D1 can't be kept because of manufacturing tolerance is excessive.Perhaps, limited part 70 can be adjusted, and adjusts maximum determined distance Dmax with this.On the implementation, limited part 70 can be a screw, and elastic parts 50 is the compression spring, and screw passes the compression spring.Can adjust the size of maximum determined distance Dmax by screw.It should be noted that limited part 70 also can be such as has trip, line of cylinder etc., and this cylinder passes the compression spring.
Fig. 6 and 7 partial schematic diagrams that show according to the scanning means of the utility model the 3rd embodiment.Shown in Fig. 6 and 7, the elastic parts 50 of the scanning means of present embodiment ' be elastic arm, an end of elastic arm is fixed on the image acquisition module 30, and the other end of elastic arm is fixed on the light source module 40.Elastic arm 50 ' an end can see through torsion spring 53 and be rotatably mounted on the image acquisition module 30.In the present embodiment, light source module 40 comprises pedestal 41 and fluorescent tube 43.Pedestal 41 is provided with the one or more protuberances 42 near transparent plate 20.Fluorescent tube 43 is installed on the pedestal 41.
Perhaps, the light source module of present embodiment also can be replaced by the light source module of Fig. 4.In this case, light source module 40 comprises pedestal 41, point-source of light 44 and leaded light post 45.Both are installed in point-source of light 44 and leaded light post 45 on the pedestal 41, in order to produce light.
Fig. 8 and 9 partial schematic diagrams that show according to the scanning means of the utility model the 4th embodiment.Shown in Fig. 8 and 9, " comprise first elastic arm 51 and second elastic arm 52, an end of each elastic arm is fixed on the image acquisition module 30 elastic parts 50 of present embodiment, and the other end of each elastic arm is fixed on the light source module 40.In the present embodiment, respectively an end of this elastic arm can see through torsion spring 53 and be rotatably mounted on the image acquisition module 30, and image acquisition module 30, light source module 40, first elastic arm 51 and second elastic arm 52 form parallelogram, and constitute a quadric chain, make light source module 40 can keep level forever like this.
What deserves to be mentioned is that the number of the protuberance 42 of above-mentioned all embodiment is not limited to one, and its kenel can be a fixture, for example be that mode with rib presents, also movable piece for example is that the mode of roller or ball presents, as long as the surface that protuberance can protrude pedestal 41.
Therefore, by above-mentioned structure of the present utility model, can when not being under pressure, transparent plate make light source module and transparent plate keep preset distance.Because light source module and transparent plate do not contact with each other, therefore when light source module moves, can generation not make us unhappy noise, and not need to coat lubricating oil on the transparent plate yet.In addition, protuberance can be integrally formed when the plastics ejection formation with pedestal, need not use as the precision of known technology and the wear plate of low-friction coefficient.Moreover the size of transparent plate can effectively be reduced, and reduces the weight and the cost of scanning means with this.
The specific embodiment that is proposed in the detailed description of preferred embodiment is only in order to convenient explanation technology contents of the present utility model, but not with the utility model narrow sense be limited to the foregoing description, situation in the scope that does not exceed spirit of the present utility model and claim, the many variations of being done is implemented, and all belongs to scope of the present utility model.
The primary clustering symbol description
L1 length
The L2 maximum length
The D1 preset distance
The D2 predetermined altitude
The Dmax maximum determined distance
1 scanning means
2 original copys
10 housings
11 openings
12 intersections
13 guide rods
20 transparent plates
30 image acquisition modules
40 light source modules
41 pedestals
42 protuberances
43 fluorescent tubes
44 point-source of lights
45 leaded light posts
50,50 ', 50 " elastic partss
51 first elastic arms
52 second elastic arms
53 torsion springs
60 guide members
70 limited parts
Claims (23)
1. the scanning means with floating lighting source is characterized in that, comprises:
Housing, it has opening;
Transparent plate, it is installed in the described opening part of described housing, and in order to seal described opening, described transparent plate is in order to the carrying original copy;
Image acquisition module, it can be installed in the described housing movably towards first direction, in order to capture the image of described original copy;
Light source module, it can be installed on the described image acquisition module movably towards second direction, and in order to the described original copy of irradiation that emits beam, described second direction is in fact perpendicular to described first direction; And
Elastic parts, it connects described light source module and described image acquisition module, in order to described light source module is pushed to described transparent plate, and when described transparent plate is not subjected to specific function power, make described transparent plate and described light source module keep preset distance, when described transparent plate is subjected to described specific function power, described transparent plate is contacted with described light source module.
2. the scanning means with floating lighting source as claimed in claim 1 is characterized in that, wherein when described transparent plate was subjected to described specific function power, described transparent plate contacted with described light source module and described light source module is moved predetermined altitude.
3. the scanning means with floating lighting source as claimed in claim 2 is characterized in that, the maximum length that wherein said transparent plate can move at described first direction less than described image acquisition module in the length of described first direction.
4. the scanning means with floating lighting source as claimed in claim 3 is characterized in that, further comprises:
Guide member, it is located at the intersection of described transparent plate and described housing, and connect described transparent plate and described housing, guide described image acquisition module and described light source module to cross over described intersection when being subjected to described specific function power at described transparent plate.
5. the scanning means with floating lighting source as claimed in claim 1 is characterized in that, wherein said elastic parts is compression spring, torsion spring or elastic arm.
6. the scanning means with floating lighting source as claimed in claim 1 is characterized in that, wherein said light source module comprises:
Pedestal which is provided with the protuberance near described transparent plate; And
Fluorescent tube, it is installed on the described pedestal.
7. the scanning means with floating lighting source as claimed in claim 6 is characterized in that, wherein said protuberance and described pedestal are integrally formed.
8. the scanning means with floating lighting source as claimed in claim 6 is characterized in that, wherein said protuberance is roller or ball.
9. the scanning means with floating lighting source as claimed in claim 1 is characterized in that, wherein said light source module comprises:
Pedestal which is provided with the protuberance near described transparent plate; And
Point-source of light and leaded light post, both are installed on the described pedestal, in order to produce described light.
10. the scanning means with floating lighting source as claimed in claim 9 is characterized in that, wherein said protuberance is roller or ball.
11. the scanning means with floating lighting source as claimed in claim 9 is characterized in that, wherein said protuberance and described pedestal are integrally formed.
12. the scanning means with floating lighting source as claimed in claim 1 is characterized in that, further comprises:
Limited part, it connects described light source module and described image acquisition module, in order to limit distance between described light source module and the described image acquisition module below maximum determined distance.
13. the scanning means with floating lighting source as claimed in claim 12 is characterized in that, wherein said limited part is a screw, and described elastic parts is the compression spring, and described screw passes described compression spring.
14. the scanning means with floating lighting source as claimed in claim 12 is characterized in that, wherein said limited part is a cylinder, and described elastic parts is the compression spring, and described cylinder passes described compression spring.
15. the scanning means with floating lighting source as claimed in claim 12 is characterized in that wherein said limited part can be adjusted, and adjusts described maximum determined distance with this.
16. the scanning means with floating lighting source as claimed in claim 15 is characterized in that, wherein said limited part is a screw, and described elastic parts is the compression spring, and described screw passes described compression spring.
17. the scanning means with floating lighting source as claimed in claim 15 is characterized in that, wherein said limited part is a cylinder, and described elastic parts is the compression spring, and described cylinder passes described compression spring.
18. the scanning means with floating lighting source as claimed in claim 1 is characterized in that, wherein said elastic parts is an elastic arm, and an end of described elastic arm is fixed on the described image acquisition module, and the other end of described elastic arm is fixed on the described light source module.
19. the scanning means with floating lighting source as claimed in claim 18 is characterized in that, a described end of wherein said elastic arm sees through torsion spring and is fixed on the described image acquisition module.
20. the scanning means with floating lighting source as claimed in claim 1 is characterized in that, wherein said light source module comprises:
Pedestal which is provided with roller or ball near described transparent plate; And
Fluorescent tube, it is installed on the described pedestal.
21. the scanning means with floating lighting source as claimed in claim 1, it is characterized in that, wherein said elastic parts comprises two elastic arms, and an end of each described elastic arm is fixed on the described image acquisition module, and the other end of each described elastic arm is fixed on the described light source module.
22. the scanning means with floating lighting source as claimed in claim 21, it is characterized in that, wherein a described end of each described elastic arm sees through torsion spring and is fixed on the described image acquisition module, and described image acquisition module, described light source module and described two elastic arms form parallelogram.
23. the scanning means with floating lighting source as claimed in claim 1 is characterized in that, wherein said light source module comprises:
Pedestal which is provided with roller or ball near described transparent plate; And
Point-source of light and leaded light post, both are installed on the described pedestal, in order to produce described light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620133177 CN200969619Y (en) | 2006-03-24 | 2006-09-01 | Scanner device with floating lighting source |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610025035.6 | 2006-03-24 | ||
| CN200610025035 | 2006-03-24 | ||
| CN 200620133177 CN200969619Y (en) | 2006-03-24 | 2006-09-01 | Scanner device with floating lighting source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200969619Y true CN200969619Y (en) | 2007-10-31 |
Family
ID=38969196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620133177 Expired - Fee Related CN200969619Y (en) | 2006-03-24 | 2006-09-01 | Scanner device with floating lighting source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200969619Y (en) |
-
2006
- 2006-09-01 CN CN 200620133177 patent/CN200969619Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071031 Termination date: 20100901 |