CN207200825U - Light source module group and image-taking device - Google Patents
Light source module group and image-taking device Download PDFInfo
- Publication number
- CN207200825U CN207200825U CN201720676853.6U CN201720676853U CN207200825U CN 207200825 U CN207200825 U CN 207200825U CN 201720676853 U CN201720676853 U CN 201720676853U CN 207200825 U CN207200825 U CN 207200825U
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- light
- light emitting
- source module
- emitting diode
- light source
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Abstract
The utility model provides a kind of light source module group and a kind of image-taking device；Light source module group includes a substrate, a light guide bar and multiple light emitting diodes；There is light guide bar an incidence surface and an exiting surface, exiting surface to be adjacent to incidence surface.Light emitting diode is arranged on substrate along a first axle and towards incidence surface throw light, and the distance between an optical axis of each light emitting diode and the first axle are not more than 0.5 millimeter.Image-taking device includes said light source module, a pedestal, an imaging modules and a sensing module, light source module group and is installed in pedestal and is emitted beam towards an object；Imaging modules are installed in pedestal, and to by the image formation by rays that object reflects in position pedestal opposite side sensing module.
Description
Technical field
The utility model be on for read or identify printing or writing words or for identify figure method or
Device, and in particular to the light source module group and image-taking device of line style CIS.
Background technology
Contact-type image sensing device (contact image sensor) is one kind of line style CIS, main application
In scanner, facsimile machine and multifunctional paper feeding machine, by the image of plane or file scan into electronic format, in order to store up
Deposit, show or transmit.
The operation principle of contact-type image sensing device is irradiated to light caused by light source on contribution to be scanned, warp
Contribution reflection light is crossed, and the reflection light is gathered on sensitive piece using a lens set；Using sensitive piece by the letter of light
The signal of electricity number is changed into, and then produces analogy or digital pixel (pixel) data.
The light source being generally used on the market in contact image sensing device at present mainly provides a white light to irradiate object；
However, it will cause to be imaged because color rendering is bad to produce the light emitting diode of white light with blue light emitting crystal grain collocation yellow fluorescent powder
It is poor quality.
Utility model content
A kind of light source module group is provided according to the utility model, is supplied in image-taking device；Light source module group include a substrate,
One light guide bar and multiple light emitting diodes.There is light guide bar an incidence surface and an exiting surface, exiting surface to be adjacent to incidence surface.It is luminous
Diode arranges on the substrate and along a first axle and towards incidence surface throw light, a light of each light emitting diode
The distance between axle and first axle are not more than 0.5 millimeter.Secondly, normal of the first axle parallel to exiting surface.
In an embodiment of the present utility model, the light emitting diode in light source module group, which coordinates, produces a white light,
And in the light emitting diode of light source module group, the light emitting diode of closest exiting surface is arranged for producing wavelength between 606 ~ 626
The light of nanometer, arrangement time are adjacent to the light emitting diode of exiting surface for producing wavelength between 508 ~ 555 nanometers of light, arrangement
Light emitting diode farthest away from exiting surface supplies to produce wavelength between 450 ~ 480 nanometers of light.
In an embodiment of the present utility model, the multiple microprisms of light guide bar, it is formed on a bottom surface of light guide bar, bottom
Face is relative to exiting surface；The layout density of microprism is in inverse ratio with the light intensity received by its installation position.
In an embodiment of the present utility model, light source module group also includes a reflecting element, is installed on substrate, reflecting element
A side wall around the multiple light emitting diode, the internal diameter of side wall increases with away from the substrate.
In an embodiment of the present utility model, reflecting element also includes a bottom wall, is connected to side wall and is adjacent to substrate
Side, light emitting diode is on bottom wall.
In an embodiment of the present utility model, light source module group also includes a fastener, light emitting diode and reflecting element
Located at the side of fastener, light guide bar be installed on the opposite side of fastener with receive light emitting diode coordinate caused by white light
Line.
In an embodiment of the present utility model, light source module group also includes a guard member, and part coats light guide bar, enters light
Face and exiting surface expose outside guard member.
A kind of image-taking device is separately provided according to the utility model, to capture the image of an object；Before image-taking device includes
Light source module group, a pedestal, a sensing module and the imaging modules stated.Pedestal includes a storage tank and a wears groove, light source module group
In storage tank, object is located at the side of pedestal.Sensing module is located at the opposite side of pedestal, and comprising along a second axis
Multiple sensitive pieces of arrangement.Imaging modules are installed in wears groove, and to by the video imaging of object in sensitive piece.
In an embodiment of the present utility model, the angle of an optical axis of first axle and sensitive piece is between 35 ~ 65 degree
Between.
Image-taking device of the present utility model is by suitably arranging the hair in light source module group for producing blue and green light and feux rouges
Optical diode and its relative position with exiting surface is waited, to provide the white light source of high color rendering to irradiate object, reach raising
The effect of image quality.
Brief description of the drawings
Fig. 1 is the three-dimensional exploded view according to image-taking device of the present utility model；
Fig. 2 is the partial exploded view according to image-taking device of the present utility model；
Fig. 3 is the top view according to substrate of the present utility model, reflecting component and light emitting diode；
Fig. 4 is the three-dimensional combination figure according to light source module group of the present utility model；And
Fig. 5 is the sectional view according to image-taking device of the present utility model.
Description of symbols in figure：
1 image-taking device；10 pedestals；100 top surfaces；102 bottom surfaces；104 storage tanks；106 wears grooves；
12 light source module groups；120 substrates；1200 perforations；1202 conductive parts；122 light guide bars；1220 incidence surfaces；
1222 exiting surfaces；1226 microprisms；124 reflecting components；1240 side walls；1242 bottom walls；
126B, 126G, 126R light emitting diode；128 guard members；130 fasteners；132 fins；
14 imaging modules；16 sensing modules；160 circuit boards；162 sensitive pieces；164 connection gaskets；
A first axles；C optical axises.
Embodiment
Fig. 1 is the three-dimensional exploded view according to image-taking device of the present utility model, and Fig. 2 is filled according to capture of the present utility model
The partial exploded view put.In Fig. 1 and Fig. 2, image-taking device 1 is to sense the image of (plane) object, and by the light of object
It is analogy or numerical digit electronic signal in favor of storing and transmitting to learn video conversion.Image-taking device 1 includes a pedestal 10, a light source die
The imaging modules 14 of group 12, one and a sensing module 16.
Pedestal 10 includes a top surface 100, one relative to the bottom surface 102 of top surface 100, a storage tank 104 and a wears groove 106；
Bottom surface 102 is roughly parallel to top surface 100.Storage tank 104 is formed in top surface 100 and is recessed towards the direction of bottom surface 102, wears groove
106 be the slotted hole structure through top surface 100 and bottom surface 102.Plastic cement or other high polymer materials can be used using injection in pedestal 10
Shaping or molded technology are made.Pedestal 10 can be in black or other dark material processing procedures for not having reflecting effect, so as to keeping away
Exempt to reflect through object and caused optical image is reflected by pedestal 10 and influences image contrast.In other words, pedestal 10 is not built
View is manufactured using the material with reflecting effect such as white or silver color.
Light source module group 12 supplies to produce a linear light to irradiate object.Light source module group 12 includes a substrate 120, a light guide bar
122nd, a reflecting component 124 and multiple light emitting diode 126B, 126G, 126R.Substrate 120 can be printed circuit board (PCB) (printed
Circuit board) or flexible circuit board (flexible print circuit)；Wherein, flexible circuit board can effectively drop
The volume and weight of low light source module group 12.
The light-permeable of light guide bar 122, and include an incidence surface 1220 and an exiting surface 1222；Incidence surface 1220 is sent out to receive
Light caused by optical diode 126B, 126G, 126R, exiting surface 1222 is adjacent to incidence surface 1220, and is projected with for light.
The bottom surface (not another label) of light guide bar 122 can form multiple microprisms 1226, and its grade is causing by incidence surface
1220 light for entering light guide bar 122 are able to be transferred to distance light side (i.e. away from incidence surface 1220)；Bottom surface is adjacent to incidence surface
1220 and can be relative with exiting surface 1222.The light intensity that the laying quantity of microprism 1226 is received with its installation position
And change, and can be for example in nonlinear change；Whereby, can allow exiting surface 1222 export linear light uniform luminance.
More specifically, at neighbouring incidence surface 1220, in per unit area, the laying quantity of microprism 1226 is low (i.e.
Low-density)；In place of away from incidence surface 1220, in per unit area, the laying quantity of microprism 1226 is high (i.e. high density)；Shen
Yan Zhi, the layout density of microprism 1226 are in inverse ratio with the light intensity received by its installation position.
Reflecting component 124 is arranged at substrate 120 and comprising a side wall 1240 and a bottom wall 1242；Reflecting component 124 can be white
Or the color that silver color etc. possesses high reflecting effect is made.The internal diameter of side wall 1240 away from substrate 120 with increasing, so as to changing
The bang path of high angle scattered light caused by light emitting diode 126B, 126G, 126R, high angle scattered light being capable of successfully coupling accordingly
Light guide bar 122 is bonded to, reaches the effect for improving light utilization efficiency.Bottom wall 1242 is connected to the side of the adjacent substrates 120 of side wall 1240,
For carrying light emitting diode 126B, 126G, 126R.
Reflecting component 124 also includes multiple connectors 1244, and one end of its grade can be located at bottom wall 1242, and confession and light-emitting diodes
Pipe 126B, 126G, 126R are electrically connected；The other end is protruded from outside bottom wall 1242, is electrically connected for being formed with substrate 120
Connect.
Refer to Fig. 3；Light emitting diode 126B, 126G, 126R are arranged on bottom wall 1242 along a first axle A, side
Wall 1240 surrounds light emitting diode 126B, 126G, 126R.Each light emitting diode 126B, 126G, 126R optical axis I and first
The distance between axis A is not more than 0.5 millimeter；Wherein, optical axis C each light emitting diode 126B, 126G, 126R is sent
The symmetry axis of light light intensity distributions in space.
Light emitting diode 126B, 126G, 126R can light at different time points respectively；In the utility model, light
Diode 126B is for producing wavelength between 450 ~ 480 nanometers of blue light, and light emitting diode 126G is for producing wavelength between 508 ~ 555
The green glow of nanometer, light emitting diode 126R is for producing wavelength between 606 ~ 626 nanometers of feux rouges.
Refer to Fig. 4；After light emitting diode 126B, 126G, 126R and light guide bar 122 are completed to assemble, first axle A is put down
Row is in the normal with exiting surface 1222；Light emitting diode 126R is arranged in closest exiting surface 1222, light emitting diode 126G
Arrangement time is arranged farthest away from exiting surface 1222 close to exiting surface 1222, light emitting diode 126B；In other words, light emitting diode 126G
It is arranged between light emitting diode 126R and 126B.Accordingly, image quality can be improved.When actually implementing, light emitting diode
The relative position of 126B, 126G, 126R and exiting surface 1222 can adjust according to actual demand.
To be illustrated herein, light emitting diode 126B, 126G, 126R also can be directly installed on substrate 120.
Under aforesaid state, reflecting component 124 only includes side wall 1240 for changing it around light emitting diode 126B, 126G, 126R
Etc. the bang path of the high angle scattered light sent.In other words, when light emitting diode 126B, 126G, 126R are directly mounted in substrate
When 120, the bottom wall 1242 described before being not included in of reflecting component 124；The entire length of light source module group 12 can be reduced accordingly.
Light source module group 12 can also include a guard member 128 and a fastener 130.Guard member 128 partly coats light guide bar
122, and at least expose incidence surface 1220 and exiting surface 1222；Guard member 128 avoids light guide mainly for the protection of light guide bar 122
Bar 122 is broken when assembling or transport because without support.The material with reflecting effect such as white or silver color can be used in guard member 128
Material is made, and can reflect the non-part light being emitted by the exiting surface 1222 of light guide bar 122 accordingly, reaches and improves light use
The effect of efficiency.
One end of fastener 130 is provided with reflecting component 124 and light emitting diode 126B, 126G, 126R, and light guide bar 122 is located at
The other end of fastener 130 is to receive light emitting diode 126B, 126G, 126R distinctly caused blue ray, green light, red
Coloured light line.In other words, the center of fastener 130 is provided with an opening (not shown) in appropriate aperture for light emitting diode
126B, 126G, 126R not caused blue rays, green light, red lights can smoothly be coupled to light guide bar 122.Profess
It, fastener 130 can provide light guide bar 122 and light emitting diode 126B, 126G, 126R positioning and the effect for improving optical coupling rate
Fruit.Fastener 130 is also formed with multiple fins 132 for being installed with light emitting diode 126B, 126G, 126R a side surface, its
Reach locating effect etc. the perforation 1200 to be formed on substrate 120 is worn.Further, by control light emitting diode
126B, 126G, 126R not caused blue rays, green light, the sequential of red light, it can allow what exiting surface 1222 projected
Light is human viewable's white light after mixed light.
Again referring to Fig. 1；Imaging modules 14 are located in wears groove 106, to enable the image of object to image in sensing mould
Group 16；Imaging modules 14 can be for example comprising multiple gradient refractive index lens.
Sensing module 16 is arranged at the side of pedestal 10, and includes a circuit board 160 and each and every one more sensitive pieces 162.Circuit
Plate 160 can for example (but not limiting) as printed circuit board (PCB)；Multiple conductive parts 1202 on substrate 120 can with circuit board 160
Multiple connection gaskets 164 are electrically connected with to capture the luminous required electric power of light emitting diode 126B, 126G, 126R.
Sensitive piece 162 is arranged on circuit board 160 along a second axis and is electrically connected with circuit board 160；Sense
One optical axis of light part 160 and first axle A angle theta can be between 35 ~ 65 degree (as shown in Figure 5), and the correspondence of sensitive piece 162
Arranged in wears groove 106, to receive optical image caused by light caused by object reflection source module 12, further by light
It is analogy or numerical digit electronic signal to learn video conversion.Sensitive piece 162 can partly lead for charge coupled cell, complementary metal-oxide
Volume elements part or other there is the element of light transfer characteristic.
Light emitting diode 126B, 126G, 126R of image-taking device 1 of the present utility model can increase outgoing through being properly located
The uniformity of light；Furthermore by suitably arranging the light emitting diode in light source module group 12 for producing blue and green light and feux rouges
126B, 126G, 126R and its relative position with exiting surface 1222 is waited, to reach the effect for improving image quality.
Embodiment described above is only the preferred embodiment to absolutely prove the utility model and being lifted, the utility model
Protection domain not limited to this.The equivalent substitute or change that those skilled in the art are made on the basis of the utility model
Change, within the scope of protection of the utility model.The scope of protection of the utility model is defined by claims.
Claims (9)
1. a kind of light source module group, it is characterised in that the light source module group includes：
One substrate；
One light guide bar, has an incidence surface and an exiting surface, and the exiting surface is adjacent to the incidence surface；And
Multiple light emitting diodes, on the substrate, the multiple light emitting diode is arranged along a first axle and direction
The incidence surface throw light, and the distance between an optical axis of each light emitting diode and described first axle are not more than
0.5 millimeter,
Normal of the wherein described first axle parallel to the exiting surface.
2. light source module group as claimed in claim 1, it is characterised in that in the multiple light emitting diode, arrangement is closest
The light emitting diode of the exiting surface is arranged and gone out described in secondary be adjacent to for producing wavelength between 606 ~ 626 nanometers of light
The light emitting diode of smooth surface arranges the institute farthest away from the exiting surface for producing wavelength between 508 ~ 555 nanometers of light
Light emitting diode is stated for producing wavelength between 450 ~ 480 nanometers of light.
3. light source module group as claimed in claim 1, it is characterised in that the light guide bar includes multiple microprisms, the multiple
Microprism is formed on a bottom surface of the light guide bar, and the bottom surface is relative to the exiting surface, the cloth of the multiple microprism
If density is in inverse ratio with the light intensity received by its installation position.
4. light source module group as claimed in claim 1, it is characterised in that also comprising a reflecting element, be installed on the substrate, institute
State a side wall of reflecting element increases around the multiple light emitting diode, the internal diameter of the side wall with away from the substrate.
5. light source module group as claimed in claim 4, it is characterised in that the reflecting element also includes a bottom wall, is connected to described
Side wall is adjacent to the side of the substrate, and the multiple light emitting diode is on the bottom wall.
6. light source module group as claimed in claim 4, it is characterised in that also comprising a fastener, the multiple light emitting diode
And the reflecting element is located at the side of the fastener, the opposite side that the light guide bar is installed on the fastener is described to receive
Light caused by multiple light emitting diodes cooperations.
7. light source module group as claimed in claim 1, it is characterised in that also comprising a guard member, the light guide bar is partly coated,
The incidence surface and the exiting surface expose outside the guard member.
A kind of 8. image-taking device, to capture the image of an object, it is characterised in that the image-taking device includes：
Light source module group as any one of claim 1 to 7；
One pedestal, comprising a storage tank and a wears groove, the light source module group is located in the storage tank, and the object is positioned at described
The side of pedestal；
One sensing module, positioned at the opposite side of the pedestal, the sensing module is included along the multiple of second axis arrangement
Sensitive piece；
One imaging modules, be installed in the wears groove, and to by the video imaging of the object in the multiple sensitive piece.
9. image-taking device as claimed in claim 8, it is characterised in that the optical axis of the first axle and the multiple sensitive piece
Angle between 35 ~ 65 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720676853.6U CN207200825U (en) | 2017-06-12 | 2017-06-12 | Light source module group and image-taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720676853.6U CN207200825U (en) | 2017-06-12 | 2017-06-12 | Light source module group and image-taking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207200825U true CN207200825U (en) | 2018-04-06 |
Family
ID=61784158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720676853.6U Expired - Fee Related CN207200825U (en) | 2017-06-12 | 2017-06-12 | Light source module group and image-taking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207200825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109040508A (en) * | 2017-06-12 | 2018-12-18 | 菱光科技股份有限公司 | Light source module group and image-taking device |
-
2017
- 2017-06-12 CN CN201720676853.6U patent/CN207200825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109040508A (en) * | 2017-06-12 | 2018-12-18 | 菱光科技股份有限公司 | Light source module group and image-taking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20200612 |