CN101377280A - Light source module group of scanning apparatus - Google Patents
Light source module group of scanning apparatus Download PDFInfo
- Publication number
- CN101377280A CN101377280A CNA2007101479776A CN200710147977A CN101377280A CN 101377280 A CN101377280 A CN 101377280A CN A2007101479776 A CNA2007101479776 A CN A2007101479776A CN 200710147977 A CN200710147977 A CN 200710147977A CN 101377280 A CN101377280 A CN 101377280A
- Authority
- CN
- China
- Prior art keywords
- light source
- source module
- light
- emitting diode
- module according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
The invention relates to a light source module of a scanning device, which comprises a light guide pole and a light-emitting diode. The light guide pole is provided with a top surface, a bottom surface and two end parts, wherein, the top surface is arranged corresponding to the bottom surface. The light-emitting diode is adjacent to one of the end parts. As the light-emitting diode of the invention is arranged at one of the end parts or at the bottom surface, therefore the light of the light-emitting diode is evenly emitted through the light guide pole. Compared with the prior art, the light source module used with a scanning device can not only improve the light-emitting performance, but also shorten the driving time of the light source module, prolong the service life of the light source module, and improve the overall scanning speed and quality of the scanning device.
Description
Technical field
The present invention relates to a kind of light source module, particularly relate to a kind of light source module of scanning means.
Background technology
The data image input of scanner now, facsimile machine, copying machines or affairs machine all must just can be reached by the scanning process of light source.Therefore, the luminous efficiency of the light source of scanning means, stability and driving time are the concern usefulness and the quality of scanning means integral body.
See also shown in Figure 1ly, a kind of scanning means 1 of existing known techniques comprises an image induction element 11, a light source 12 and a transparent support plate 13.Wherein, scanning means 1 is the one scan device, and image induction element 11 is that (Charge-Coupled Device, CCD), transparent support plate 13 then is a glass support plate to a charge coupled device.Light source 12 is a cathode fluorescent tube (Cold-CathodeFluorescent Lamp, linear light sorurce CCFL), and being arranged between transparent support plate 13 and the image induction element 11.When scanning means 1 scanning is placed in a file 14 of transparent support plate 13 tops, light source 12 luminous light be the surface of inswept file 14 so that image induction element 11 is accepted the light that file 14 is reflected, to finish the scanning process of scanning means 1.
Yet existing known techniques is with cathode fluorescent tube during as light source 12, and the driving time of scanning means 1 and luminous efficiency are neither as be the scanning means of light source with the light emitting diode.
Therefore, how to provide a kind of light source module of scanning means, both can shorten the driving time of light source module, also can increase the luminous efficiency of light source module, to promote the sweep speed and the scanning quality of scanning means, real is one of current important topic.
Summary of the invention
The objective of the invention is to, overcome the defective of the light source existence of existing scanning means, and provide a kind of light source module of scanning means of new structure, technical problem to be solved is sweep speed and the quality that makes the working life of its driving time that can shorten the light source module, prolongation light source module and promote scanning means integral body, is very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.The light source module of a kind of scanning means that proposes according to the present invention, comprise: a leaded light post is to have an end face, a bottom surface and two ends, and wherein this end face and this bottom surface are to be oppositely arranged; And a light emitting diode, be adjacent to those ends one of them.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The light source module of aforesaid scanning means, it more comprises: a reflecting element is around this light emitting diode.
The light source module of aforesaid scanning means, wherein said end face are an exiting surface, and this bottom surface is a reflecting surface.
The light source module of aforesaid scanning means, wherein said exiting surface are to have plural biconvex lens, plural protuberance and/or plural pit.
The light source module of aforesaid scanning means, the radius of curvature of wherein said biconvex lens and spacing are inequality.
The light source module of aforesaid scanning means, wherein said bottom surface are to have plural prism, at least one Fresnel Lenses or plural site.
The light source module of aforesaid scanning means, wherein the drift angle angle of respectively this prism of at least a portion is inequality.
The light source module of aforesaid scanning means, wherein the gash depth of respectively this prism of at least a portion is inequality.
The light source module of aforesaid scanning means, it more comprises: a light guiding lens is to cover this light emitting diode.
The object of the invention to solve the technical problems also realizes by the following technical solutions.The light source module of a kind of scanning means that proposes according to the present invention, comprise: a leaded light post is to have the bottom surface that an end face and is oppositely arranged; And a light emitting diode, be to be adjacent to this bottom surface.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The light source module of aforesaid scanning means, wherein said bottom surface has a recess, and this light emitting diode is to be embedded at this recess.
The light source module of aforesaid scanning means, it more comprises: a reflecting element is around this light emitting diode.
The light source module of aforesaid scanning means, wherein said end face are an exiting surface, and this bottom surface is a reflecting surface.
The light source module of aforesaid scanning means, wherein said exiting surface are to have plural biconvex lens, plural protuberance and/or plural pit.
The light source module of aforesaid scanning means, the radius of curvature of wherein said biconvex lens and spacing are inequality.
The light source module of aforesaid scanning means, wherein said bottom surface are to have plural prism, at least one Fresnel Lenses or plural site.
The light source module of aforesaid scanning means, wherein at least a portion respectively the drift angle angle of this prism be inequality.
The light source module of aforesaid scanning means, wherein said at least a portion respectively gash depth of this prism are inequality.
The light source module of aforesaid scanning means, it more comprises: a light guiding lens is to cover this light emitting diode.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:
In order to achieve the above object, the invention provides a kind of light source module of scanning means, it comprises a leaded light post and a light emitting diode.The leaded light post is to have an end face, a bottom surface and two ends, and wherein end face and bottom surface are to be oppositely arranged.Light emitting diode be adjacent to those ends one of them.
In addition, in order to achieve the above object, the present invention provides a kind of light source module of scanning means in addition, and it comprises a leaded light post and a light emitting diode.The leaded light post is to have the bottom surface that an end face and is oppositely arranged.Light emitting diode is to be adjacent to the bottom surface.
By technique scheme, the light source module of scanning means of the present invention has following advantage and beneficial effect at least:
The light source module of a kind of scanning means of the present invention is by the end or the bottom surface that light emitting diode are arranged at the leaded light post, and the light that makes light emitting diode is via the even bright dipping of leaded light post.Compare with existing known techniques, the light source module of scanning means of the present invention not only can improve light emitting efficiency, and shortens the driving time of light source module, the working life that also prolongs the light source module, the overall scan speed and the quality of lifting scanning means.
In sum, the present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on apparatus structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and the light source of more existing scanning means has the outstanding effect of enhancement, thus be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the existing known a kind of scanning means and the schematic diagram of light source thereof.
Fig. 2 is the schematic diagram of light source module of a kind of scanning means of the first embodiment of the present invention.
Fig. 3 A and Fig. 3 B are the schematic diagram that the top surface structure of light source module of a kind of scanning means of the first embodiment of the present invention changes.
Fig. 3 C is the generalized section of light source module of a kind of scanning means of the first embodiment of the present invention.
Fig. 4 is the schematic diagram of light source module of a kind of scanning means of the second embodiment of the present invention.
Fig. 5 is the schematic diagram of light source module of a kind of scanning means of the third embodiment of the present invention.
Fig. 6 is the schematic diagram of light source module of a kind of scanning means of the fourth embodiment of the present invention.
1: scanning means 11: image induction element
12: light source 13: transparent support plate
14: file 2,3,4,5: light source module
21,31,41,51: the leaded light post
211,211 ', 211 ", 311,411,511: end face
212,212 ', 312,412,512: the bottom surface
213,313,413,513: the end
22,32,42,52: light emitting diode
23,33: reflecting element 231: reflecting layer
421: adhesive body 43: light guiding lens
514: recess 54: reflecting plate
α 1, α 2: drift angle C1, C2: pit
D1, D2: gash depth N: biconvex lens
P: prism R1, R2: radius of curvature
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of light source module, structure, feature and the effect thereof of the scanning means that foundation the present invention is proposed, describe in detail as after.
First embodiment
See also shown in Figure 2ly, the light source module 2 of a kind of scanning means of first embodiment of the invention comprises a leaded light post 21 and a light emitting diode 22.Leaded light post 21 is to have an end face 211, a bottom surface 212 and two ends 213.Leaded light post 21 can be a side's bar shaped leaded light post or the wedge shape leaded light post that the bottom surface is the plane, also can be an arc leaded light post of bottom surface tool cambered surface.In the present embodiment, leaded light post 21 is to be example with side's bar shaped leaded light post, and its end face 211 is to be oppositely arranged with bottom surface 212, and end face 211 is an exiting surface, and bottom surface 212 is a reflecting surface.In the present embodiment, end face 211 is to have plural biconvex lens N to be arranged in parallel.Bottom surface 212 can have plural prism, at least one Fresnel Lenses or plural site, and present embodiment is preferably plural prism P and is set in parallel in bottom surface 212.
The leaded light process of light source module 2 is as described below, and the light that light emitting diode 22 sends enters leaded light post 21 by the end 213 of leaded light post 21 after the reflection of reflecting layer 231.Then, the prism P of bottom surface 212 reflexes to end face 211 bright dippings with light, and end face 211 can have biconvex lens N, so that emergent ray evenly distributes and more increases central energy after light penetrates.Thus, leaded light post 21 can be intended scanning in order to file like the being aligned light source.
See also shown in Fig. 3 A to Fig. 3 C, it is the end face 211 of leaded light post 21 of first embodiment of the invention and the variation aspect of bottom surface 212.As shown in Figure 3A, it is a schematic top plan view of end face 211 '.End face 211 ' is that the biconvex lens N by radius of curvature R inequality 1, R2 and spacing (pitch) is constituted, and increasing the light emitting efficiency of light, and avoids scattering too regularly and produces bright rays.Shown in Fig. 3 B, it is an end face 211 " a schematic top plan view.End face 211 " can be the size a plurality of protuberances and/or plural pit C1, C2 inequality constitute, make light through end face 211 " after, be more evenly distributed.Shown in Fig. 3 C, it is a generalized section of bottom surface 212 '.The drift angle angle [alpha] 1 of those prisms P of bottom surface 212 ', α 2 can be inequality (among the figure be example with the apex angle 1 of middle body less than the apex angle 2 of two sides part) and gash depth D1, the D2 of each prism P can be inequality (among the figure be example with the gash depth D1 of middle body) greater than the gash depth D2 of two sides part.
Second embodiment
See also shown in Figure 4ly, the light source module 3 of a kind of scanning means of the second embodiment of the present invention comprises a leaded light post 31, two light emitting diodes 32 and two reflecting elements 33.Wherein, the essential structure of leaded light post 31 and function are the leaded light posts 21 as first embodiment, do not repeat them here.The present embodiment and the first embodiment difference are that light source module 3 is to comprise two light emitting diodes 32 and two reflecting elements 33, and it is two ends 313 that are arranged at leaded light post 31 respectively, can more promote the brightness of light source module 3.
The 3rd embodiment
See also shown in Figure 5ly, the light source module 4 of a kind of scanning means of the third embodiment of the present invention comprises a leaded light post 41 and a light emitting diode 42.Wherein, the element of leaded light post 41 and light emitting diode 42 structure and function are leaded light post 21 and the light emitting diodes 22 as first embodiment, do not repeat them here.The difference of present embodiment be in, the light emitting diode 42 of light source module 4 is except that having an adhesive body 421 encapsulation, having more a light guiding lens 43 covers in light emitting diode 42, light guiding lens 43 can be modified the light shape of the light that light emitting diode 42 sent, and also can increase the light utilization of light emitting diode 42.
Note that light emitting diode 42 also can be arranged at two ends 413 of leaded light post 41 simultaneously.
The 4th embodiment
See also shown in Figure 6ly, the light source module 5 of a kind of scanning means of fourth embodiment of the invention comprises a leaded light post 51 and a light emitting diode 52.Leaded light post 51 can be side's bar shaped leaded light post, an arc leaded light post or a wedge shape leaded light post.In the present embodiment, leaded light post 51 is side's bar shaped leaded light post, and has an end face 511 and a bottom surface that is oppositely arranged 512.The leaded light post 21 of leaded light post 51 and first embodiment different be in: the bottom surface 512 of leaded light post 51 has a recess 514, and light emitting diode 52 is to be embedded at recess 514.In addition, a reflecting plate 54 can be set up in two ends 513 and/or the bottom surface 512 of leaded light post 51, to improve the utilization rate of light.
After light emitting diode 52 emitted beam, light was entered by recess 514 after the leaded light post 51, by the prism P and the reflecting plate 54 of bottom surface 512 light was reflexed to end face 511 bright dippings.Because of end face 511 has biconvex lens N, so the central energy after can making the even distribution of emergent light equally and more increasing the light ejaculation.
In sum, the light source module of complying with a kind of scanning means of the present invention is by the end or the bottom surface that light emitting diode are arranged at the leaded light post, and the light that makes light emitting diode is via the even bright dipping of leaded light post.Compare with existing known techniques, the light source module of scanning means of the present invention not only can improve light emitting efficiency, and shortens the driving time of light source module, the working life that also prolongs the light source module, the overall scan speed and the quality of lifting scanning means.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (19)
1, a kind of light source module of scanning means is characterized in that it comprises:
One leaded light post is to have an end face, a bottom surface and two ends, and wherein this end face and this bottom surface are to be oppositely arranged; And
One light emitting diode, be adjacent to those ends one of them.
2, light source module according to claim 1 is characterized in that it more comprises:
One reflecting element is around this light emitting diode.
3, light source module according to claim 1 is characterized in that wherein this end face is an exiting surface, and this bottom surface is a reflecting surface.
4, light source module according to claim 3 is characterized in that wherein this exiting surface is to have plural biconvex lens, plural protuberance and/or plural pit.
5, light source module according to claim 4 is characterized in that wherein the radius of curvature and the spacing of those biconvex lens are inequality.
6, light source module according to claim 1 is characterized in that wherein this bottom surface is to have plural prism, at least one Fresnel Lenses or plural site.
7, light source module according to claim 6 is characterized in that wherein the drift angle angle of respectively this prism of at least a portion is inequality.
8, light source module according to claim 6 is characterized in that wherein the gash depth of respectively this prism of at least a portion is inequality.
9, light source module according to claim 1 is characterized in that it more comprises:
One light guiding lens is to cover this light emitting diode.
10, a kind of light source module of scanning means is characterized in that it comprises:
One leaded light post is to have the bottom surface that an end face and is oppositely arranged; And
One light emitting diode is to be adjacent to this bottom surface.
11, light source module according to claim 10 is characterized in that wherein this bottom surface has a recess, and this light emitting diode is to be embedded at this recess.
12, light source module according to claim 10 is characterized in that it more comprises: a reflecting element is around this light emitting diode.
13, light source module according to claim 10 is characterized in that wherein this end face is an exiting surface, and this bottom surface is a reflecting surface.
14, light source module according to claim 13 is characterized in that wherein this exiting surface is to have plural biconvex lens, plural protuberance and/or plural pit.
15, light source module according to claim 14 is characterized in that wherein the radius of curvature and the spacing of those biconvex lens are inequality.
16, light source module according to claim 10 is characterized in that wherein this bottom surface is to have plural prism, at least one Fresnel Lenses or plural site.
17, light source module according to claim 16, it is characterized in that wherein at least a portion respectively the drift angle angle of this prism be inequality.
18, light source module according to claim 16, it is characterized in that wherein at least a portion respectively the gash depth of this prism be inequality.
19, light source module according to claim 11 is characterized in that it more comprises:
One light guiding lens is to cover this light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101479776A CN101377280A (en) | 2007-08-30 | 2007-08-30 | Light source module group of scanning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101479776A CN101377280A (en) | 2007-08-30 | 2007-08-30 | Light source module group of scanning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101377280A true CN101377280A (en) | 2009-03-04 |
Family
ID=40420946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101479776A Pending CN101377280A (en) | 2007-08-30 | 2007-08-30 | Light source module group of scanning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101377280A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022696A (en) * | 2009-09-17 | 2011-04-20 | 索尼公司 | Light guide, light source apparatus, and reading apparatus |
| CN102737213A (en) * | 2011-03-30 | 2012-10-17 | 凌通科技股份有限公司 | Optical identification module apparatus and optical reader possessing optical identification module |
| CN109424871A (en) * | 2017-08-18 | 2019-03-05 | 手持产品公司 | Luminaire for barcode scanner |
-
2007
- 2007-08-30 CN CNA2007101479776A patent/CN101377280A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022696A (en) * | 2009-09-17 | 2011-04-20 | 索尼公司 | Light guide, light source apparatus, and reading apparatus |
| CN102022696B (en) * | 2009-09-17 | 2013-04-03 | 索尼公司 | Light guide, light source apparatus, and reading apparatus |
| CN102737213A (en) * | 2011-03-30 | 2012-10-17 | 凌通科技股份有限公司 | Optical identification module apparatus and optical reader possessing optical identification module |
| CN109424871A (en) * | 2017-08-18 | 2019-03-05 | 手持产品公司 | Luminaire for barcode scanner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1266529C (en) | Backhight unit | |
| CN201521863U (en) | Backlight module and light guide plate thereof | |
| TW200909857A (en) | Light source module of scanning device | |
| CN206234698U (en) | A kind of backlight module and display device | |
| CN1517760A (en) | Back-light unit | |
| CN102262262A (en) | Light guide plate, backlight module and display device | |
| CN202253055U (en) | Light source module | |
| CN1517759A (en) | Back-light unit | |
| CN101498810B (en) | Light conducting plate and backlight module employing the same | |
| CN1862335A (en) | Backlight module | |
| CN1808728A (en) | Mirror and homogeneously luminous LED utilizing the mirror | |
| CN101144869A (en) | Light conductive board and the backlight module using same | |
| CN101424769B (en) | Light guide board | |
| CN101377280A (en) | Light source module group of scanning apparatus | |
| CN101694277A (en) | Backlight module and beam splitter thereof | |
| CN102681080A (en) | Linear light source, light guiding body and optical scanning module | |
| US20040114342A1 (en) | Planar lighting structure | |
| CN1536413A (en) | Luminous device and method of reducing fluorescent tube image of luminous device | |
| CN100483208C (en) | Light-guiding board and back-light module using same | |
| CN104315407A (en) | Backlight module and display device | |
| CN101378439A (en) | Light source die set for scanning apparatus | |
| US20040095740A1 (en) | Plane lighting structure for dual displays | |
| CN201103850Y (en) | Backlight module | |
| CN100529874C (en) | Light guide plate | |
| CN101135809A (en) | Light source device of back light source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090304 |