CN100548084C - Hybrid light source module and use the scan module of this hybrid light source module - Google Patents
Hybrid light source module and use the scan module of this hybrid light source module Download PDFInfo
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- CN100548084C CN100548084C CNB2006101182017A CN200610118201A CN100548084C CN 100548084 C CN100548084 C CN 100548084C CN B2006101182017 A CNB2006101182017 A CN B2006101182017A CN 200610118201 A CN200610118201 A CN 200610118201A CN 100548084 C CN100548084 C CN 100548084C
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- cathode fluorescent
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Abstract
A kind of hybrid light source module, it comprises pedestal, cathode fluorescent tube and auxiliary light emission unit.Cathode fluorescent tube is configured on the pedestal, is used to provide main light source.The auxiliary light emission configuration of cells and comprises a plurality of light-emitting diodes of the side that is configured in the cathode fluorescent tube two ends respectively on pedestal.The auxiliary light emission unit is used to provide secondary light source and compensates main light source, presents equally distributed scanning ray so that described hybrid light source module is exported along the bearing of trend of cathode fluorescent tube.
Description
Technical field
The present invention relates to a kind of hybrid light source module and use the scan module of this hybrid light source module, relate in particular to a kind of scan module that uses the hybrid light source module of cathode fluorescent tube and light-emitting diode and use this hybrid light source module.
Background technology
The employed light source of traditional scanner is mainly cathode fluorescent tube.Cathode fluorescent tube has the advantage of high brightness, but the warm-up period of fluorescent tube is longer, and lighting tube brightness is inhomogeneous, and especially the brightness meeting at two ends comes lowly than middle brightness, makes quality of scanning be affected.Therefore, conventional art sees through the light absorption material and reduces the brightness of fluorescent tube mid portion, or uses double-U-shaped fluorescent tube to make the brightness of the linearity light source that fluorescent tube sends be able to homogenizing, or uses software or firmware to come the image of correct scan gained.
Yet the making of double-U-shaped fluorescent tube is difficult for, and its manufacturing cost is quite high.The brightness that reduces the fluorescent tube mid portion will make that brightness is not enough, therefore certainly will promote the brightness of whole fluorescent tube, so must shorten the life-span of fluorescent tube.In addition, utilize software or firmware to come the mode of correcting image need use complex calculations, and when the luminance difference of fluorescent tube is quite obvious, sometimes also can't reach gratifying effect by proofreading and correct.
Therefore, how to provide a kind of light source module that can send uniform light, be this case problem to be solved.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of hybrid light source module and use the scan module of this hybrid light source module, solve the problem of the brightness irregularities of cathode fluorescent tube.
For achieving the above object, the invention provides a kind of hybrid light source module, this hybrid light source module comprises pedestal, cathode fluorescent tube and auxiliary light emission unit.Cathode fluorescent tube is configured on the pedestal, is used to provide main light source.The auxiliary light emission configuration of cells and comprises a plurality of light-emitting diodes of the side that is configured in the cathode fluorescent tube two ends respectively on pedestal.The auxiliary light emission unit is used to provide secondary light source and compensates main light source, presents equally distributed scanning ray so that described hybrid light source module is exported along the bearing of trend of cathode fluorescent tube.
The present invention also provides a kind of scan module, is used for scanning document, and scan module comprises pedestal, at least one speculum, lens module, image sensor and hybrid light source module.At least one speculum, lens module and image sensor three are installed on the pedestal.Hybrid light source module is installed in pedestal and comprises cathode fluorescent tube and the auxiliary light emission unit.Cathode fluorescent tube is disposed on the pedestal, is used to provide main light source.The auxiliary light emission configuration of cells and comprises a plurality of light-emitting diodes of the side that is configured in the cathode fluorescent tube two ends respectively on pedestal.The auxiliary light emission unit is used to provide secondary light source and compensates main light source, presents equally distributed scanning ray so that described hybrid light source module is exported along the bearing of trend of cathode fluorescent tube.The reflection ray reflecting ﹠ transmitting lens module that at least one speculum is produced file reflective scan light also arrives image sensor.
Description of drawings
Fig. 1 shows the stereogram of the scan module of first embodiment of the invention.
Fig. 2 shows the schematic diagram of the scan module of first embodiment of the invention.
Fig. 3 shows the schematic top plan view of the hybrid light source module of first embodiment of the invention.
Fig. 4 shows the schematic top plan view of the hybrid light source module of second embodiment of the invention.
Fig. 5 shows the schematic top plan view of the hybrid light source module of third embodiment of the invention.
Embodiment
Fig. 1 shows the stereogram of the scan module of first embodiment of the invention.Fig. 2 shows the schematic diagram of the scan module of first embodiment of the invention.Shown in Fig. 1 and 2, the scan module 1 of present embodiment is to be used for scanning document 2.Scan module 1 comprises pedestal 10, at least one speculum 11, lens module 12, image sensor 13 and hybrid light source module 20.
At least one speculum 11, lens module 12 and image sensor 13 threes are installed on the pedestal 10.Hybrid light source module 20 is installed in pedestal 10 and comprises cathode fluorescent tube 21 and auxiliary light emission unit 23.Cathode fluorescent tube 21 is configured on the pedestal 10, is used to provide main light source 22.Auxiliary light emission unit 23 is configured on the pedestal 10, and comprises a plurality of light-emitting diodes 24 that are configured in cathode fluorescent tube 21 two ends respectively.Light-emitting diode 24 can be configured to linearity, so that the linear light source to be provided, also can to see through the leaded light post linear light source is provided.
Auxiliary light emission unit 23 is used to provide secondary light source 26 and compensates main light source 22, makes hybrid light source module 20 exportable bearing of trends along cathode fluorescent tube 21 present equally distributed scanning ray 27.Auxiliary light emission unit 23 can further comprise leaded light post 25, and it is configured to be parallel to cathode fluorescent tube 21, and leaded light post 25 receives and handle the light of these light-emitting diodes 24, to produce secondary light source 26.
The reflection ray 28 reflecting ﹠ transmitting lens modules 12 that at least one speculum 11 is produced file 2 reflective scan light 27 also arrive image sensor 13.
Fig. 3 shows the schematic top plan view of the hybrid light source module of first embodiment of the invention.As shown in Figure 3, the hybrid light source module 20 of present embodiment comprises pedestal 10, cathode fluorescent tube 21 and auxiliary light emission unit 23.The leaded light post 25 of auxiliary light emission unit 23 is formed with a plurality of reflective lines 25A, and reflective lines 25A can be designed to make the brightness of the brightness at leaded light post 25 two ends greater than leaded light post 25 stage casings, is used for compensating the situation of the luminance shortage at cathode fluorescent tube two ends.
Fig. 4 shows the schematic top plan view of the hybrid light source module of second embodiment of the invention.As shown in Figure 4, auxiliary light emission unit 23 further comprises two leaded light posts 25, it is configured to be parallel to cathode fluorescent tube 21, and these leaded light posts 25 receive and handle the light of these light-emitting diodes 24 respectively, to produce secondary light source 26 (referring to Fig. 2), be used for compensating the situation of the luminance shortage at cathode fluorescent tube two ends.
Fig. 5 shows the schematic top plan view of the hybrid light source module of third embodiment of the invention.As shown in Figure 5, the mid portion of leaded light post 25 is coated with light shield device 25B, is used for compensating the situation of the luminance shortage at cathode fluorescent tube two ends.
According to the abovementioned embodiments of the present invention, can effectively solve the problem of brightness irregularities of the cathode fluorescent tube of the light source module that uses for scan module, provide a kind of evenly and the light source that is enhanced a little of brightness come scanning document, to obtain preferable quality of scanning.
The specific embodiment that is proposed in the detailed description of preferred embodiment only is used for making things convenient for explanation technology contents of the present invention, but not with narrow sense of the present invention be limited to the foregoing description, situation in the scope that does not exceed spirit of the present invention and following claims, the many variations of being done is implemented, and all belongs to scope of the present invention.
(symbol description)
1～scan module
2～file
10～pedestal
11～speculum
12～lens module
13～image sensor
20～hybrid light source module
21～cathode fluorescent tube
22～main light source
23～auxiliary light emission unit
24～light-emitting diode
25～leaded light post
25A～reflective lines
25B～light shield device
26～secondary light source
27～scanning ray
28～reflection ray
Claims (10)
1. a hybrid light source module is characterized in that, comprises:
Pedestal;
Cathode fluorescent tube is configured on the described pedestal, is used to provide main light source; And
The auxiliary light emission unit, this auxiliary light emission configuration of cells is on described pedestal, and comprise and be configured in a plurality of light-emitting diodes of described cathode fluorescent tube two ends respectively along the side of described fluorescent tube bearing of trend, described auxiliary light emission unit is used to provide secondary light source and compensates described main light source, presents equally distributed scanning ray so that described hybrid light source module is exported along the bearing of trend of described cathode fluorescent tube.
2. hybrid light source module as claimed in claim 1 is characterized in that, described auxiliary light emission unit further comprises:
The leaded light post, this leaded light post is configured to be parallel to described cathode fluorescent tube, and described leaded light post receives and handle the light of these light-emitting diodes, to produce described secondary light source.
3. hybrid light source module as claimed in claim 2 is characterized in that, described leaded light post is formed with a plurality of reflective lines.
4. hybrid light source module as claimed in claim 2 is characterized in that the mid portion of described leaded light post is coated with light shield device.
5. hybrid light source module as claimed in claim 1 is characterized in that, described auxiliary light emission unit further comprises:
Two leaded light posts, these leaded light posts are configured to be parallel to described cathode fluorescent tube, and these leaded light posts receive and handle the light of these light-emitting diodes respectively, to produce described secondary light source.
6. scan module is used for scanning document, it is characterized in that described scan module comprises:
Pedestal;
At least one speculum, lens module and image sensor, the three is installed on the described pedestal; And
Hybrid light source module is installed in described pedestal and comprises:
Cathode fluorescent tube is configured on the described pedestal, is used to provide main light source; And
The auxiliary light emission unit, this auxiliary light emission configuration of cells is on described pedestal, and comprise and be configured in a plurality of light-emitting diodes of described cathode fluorescent tube two ends respectively along the side of described fluorescent tube bearing of trend, described auxiliary light emission unit is used to provide secondary light source and compensates described main light source, so that described hybrid light source module output presents equally distributed scanning ray along the bearing of trend of described cathode fluorescent tube, described at least one speculum reflects described file the described lens module of reflection ray reflecting ﹠ transmitting that described scanning ray produces and arrives described image sensor.
7. scan module as claimed in claim 6 is characterized in that, described auxiliary light emission unit further comprises:
The leaded light post, this leaded light post is configured to be parallel to described cathode fluorescent tube, and described leaded light post receives and handle the light of these light-emitting diodes, to produce described secondary light source.
8. scan module as claimed in claim 7 is characterized in that, described leaded light post is formed with a plurality of reflective lines.
9. scan module as claimed in claim 7 is characterized in that the mid portion of described leaded light post is coated with light shield device.
10. scan module as claimed in claim 6 is characterized in that, described auxiliary light emission unit further comprises:
Two leaded light posts, these leaded light posts are configured to be parallel to described cathode fluorescent tube, and these leaded light posts receive and handle the light of these light-emitting diodes respectively, to produce described secondary light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101182017A CN100548084C (en) | 2006-11-10 | 2006-11-10 | Hybrid light source module and use the scan module of this hybrid light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101182017A CN100548084C (en) | 2006-11-10 | 2006-11-10 | Hybrid light source module and use the scan module of this hybrid light source module |
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| Publication Number | Publication Date |
|---|---|
| CN101179886A CN101179886A (en) | 2008-05-14 |
| CN100548084C true CN100548084C (en) | 2009-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101182017A Active CN100548084C (en) | 2006-11-10 | 2006-11-10 | Hybrid light source module and use the scan module of this hybrid light source module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI415443B (en) * | 2009-12-15 | 2013-11-11 | Avision Inc | Scanner having background assembly |
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2006
- 2006-11-10 CN CNB2006101182017A patent/CN100548084C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI415443B (en) * | 2009-12-15 | 2013-11-11 | Avision Inc | Scanner having background assembly |
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| Publication number | Publication date |
|---|---|
| CN101179886A (en) | 2008-05-14 |
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