CN203661158U - Linear light source device and light source apparatus for manuscript illumination - Google Patents
Linear light source device and light source apparatus for manuscript illumination Download PDFInfo
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- CN203661158U CN203661158U CN201320824856.1U CN201320824856U CN203661158U CN 203661158 U CN203661158 U CN 203661158U CN 201320824856 U CN201320824856 U CN 201320824856U CN 203661158 U CN203661158 U CN 203661158U
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- 238000005286 illumination Methods 0.000 title abstract description 6
- 239000004020 conductor Substances 0.000 claims description 90
- 238000012423 maintenance Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 210000000078 claw Anatomy 0.000 abstract 3
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000644035 Clava Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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- Planar Illumination Modules (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
The utility model relates to a linear light source device and a light source apparatus for manuscript illumination. In the linear light source device, which is provided with a rod-shaped light-guide body, a light-emitting device disposed to be opposite to an end face of the length direction of the light-guide body and a maintaining platform maintaining the light-guide body, and in the light source apparatus for manuscript illumination, the linear light source device enables the installation of the light-guide body towards the maintaining platform to be easier. The linear light source device, compared with the prior art, can enable the light distribution and efficiency not to be reduced greatly, and can emit light efficiently. The light source apparatus for manuscript illumination can read the concave and convex parts of a manuscript subtly. The shape of the section of the light-guide body is roughly circular, and the maintaining platform is provided with a carrying part which is used for carrying the light-guide body and is opened in the shape of a semicircular water-guide tube. The carrying part is provided with an upper clamping claw and a lower clamping claw along a side edge part of the upper part of the opening and a side edge part of the lower part of the opening, wherein the upper and lower clamping claws are used for clamping the light-guide body, and are arranged at different positions in the length direction of the light-guide body.
Description
Technical field
The utility model relates to linear light source device and original copy light source device for lighting, linear light source device and original copy light source device for lighting that the image reading particularly using in facsimile machine, photocopier, image reading apparatus, bar code reader etc. is used.
Background technology
The linear light source device that the image reading using in above-mentioned technical field is used possesses and utilizes the original document reading apparatus that reads the word/image information of master copy from the reverberation of master copy, in this device, be equipped with the linear light source device to main scanning direction light irradiation for master copy is irradiated.
The known device that has the bar-shaped light guide that possesses light-emitting component (LED) and formed by transparent resin as disclosed in 2011-No. 44336 communiques of JP (patent documentation 1) in this linear light source device.
Fig. 6 is the summary construction diagram of the disclosed linear light source device of patent documentation 1 and original copy light source device for lighting.
The light conductor 21 of formation linear light source device 20 is shaped on main scanning direction elongated, disposes not shown in the figure light-emitting component at the end face of light conductor 21.
Be formed with light-emitting face 23a, 23b in the upper surface side of light conductor 21, be formed with reflecting part 22a, 22b in opposed bottom surface therewith, if carry out the light of self-emission device and incide the end face of light conductor 21, be directed into transparent light conductor inner and incide the light generation total reflection of reflecting part 22a, 22b and launch from light-emitting face 23a, 23b.
The light conductor 21 of the linear light source device 20 in the original copy light source device for lighting 10 shown in Fig. 6 possesses 2 reflecting part 22a, the 22b to mutually different direction reflections by light, from the light of the surface feeding sputtering of light conductor 21, by this reflecting part 22a, 22b respectively towards different light-emitting face 23a, 23b reflections.
In this embodiment, if the light by the first reflecting part 22a reflection is launched from light conductor 21, the shadow surface 40 of direct optically focused on original copy, if the light by the second reflecting part 22b reflection is launched from light conductor 21, reflect by being positioned at the water guide tubulose of opposed locations or tabular speculum 35, reverberation optically focused is to described shadow surface 40.This STRUCTURE DEPRESSION is by the impact of the concavo-convex shadow causing of master copy, is applicable to being used in improving the object aspect that reads precision.
As shown in Figure 7, the light conductor 21 in this linear light source device 20 is with respect to keeping platform 30 to install according to following mode.
Keep platform 30 to possess inserting the slightly groove 31 of semicircle shape of cross section of light conductor 21, and along its edge, upper and lower both sides, possess the holding section 32 that engages with the datum level 25 of light conductor 21 and with the fastener 33 keeping with raised line 26 engagements.
In the time light conductor 21 being arranged to maintenance platform 30, make respectively the datum level 25 and holding section 32 butts that keep platform 30 of light conductor 21, convex strip portions 26 and fastener 33 butts that keep platform 30 for the maintenance that makes light conductor 21, and utilize the latch for printed circuit 34 being formed by leaf spring to clamp to keep the edge part of platform 30 and the upper surface of convex strip portions 26 and light conductor 21 is fixed on and keeps platform 30.
Although the light conductor of said structure can be expeditiously by the light optically focused from light-emitting face outgoing to specific region, utilizing emitted light in theory expeditiously, but complex-shaped due to light conductor, therefore sometimes between light conductor and light-emitting component or light conductor and keep between platform so and original copy light source device for lighting in framework between produce alignment error, the mutual position relationship of parts departs from from desired state, therefore, there is the problem that causes decrease in efficiency to the decline of the irradiation light quantity of original copy.
[prior art document]
[patent documentation]
2011-No. 44336 communiques of [patent documentation 1] TOHKEMY
Utility model content
The technical problem solving
The utility model is in view of the problem points of above-mentioned prior art, comprising the bar-shaped light conductor with light transmission, and the light-emitting component of configuration opposed with the length direction end face of this light conductor, with keep described light conductor maintenance platform linear light source device and have in the original copy light source device for lighting of this linear light source device, provide a kind of described light conductor to be comparatively easy to also to make luminous intensity distribution distribute simultaneously compared with existing to the installation that keeps platform, less and the radiative linear light source device and can read the concavo-convex original copy light source device for lighting of master copy expeditiously of the decline of efficiency fine.
For the means of dealing with problems
In order to solve above-mentioned problem, the linear light source device that the utility model is related and original text light source device for lighting are characterised in that, the cross sectional shape of described light conductor is circular, described maintenance platform has the mounting portion with semicircle water guide tubular opening for loading described light conductor, this mounting portion possesses along its opening upper side edge part and opening lower side edge part the top engagement pawl and the below engagement pawl that described light conductor are carried out to engagement, described top engagement pawl and described below engagement pawl stagger and are arranged on different positions on the length direction of described light conductor.
In addition, be characterised in that, described light conductor be formed with described above engagement pawl and/or described below the engaging recessed part that engages of engagement pawl.
In addition, be characterised in that have light-emitting face and be formed on and 2 reflecting parts of the opposed bottom surface of described light-emitting face at described light conductor, the mounting portion that this light conductor is loaded in described maintenance platform by its reflecting part is kept.
Technique effect
According to linear light source device of the present utility model and original copy light source device for lighting, due to light conductor engagement slightly circular cross section is being kept to platform, therefore simple in structure, do not need installation accuracy highly, it is good that the rate of finished products while therefore assembling linear light source device becomes.
And, by being limited to, light conductor keeps the pawl of engagement up and down of platform to stagger on the length direction of light conductor being arranged on different positions, do not produce by the extreme illumination of the caused part of configuration status of engagement pawl and decline, can obtain at the well-distributed linear light source device of length direction luminous intensity distribution and original copy light source device for lighting.
In addition, by light conductor, engaging recessed part being set, the direction of rotation of light conductor and the movement of length direction are restricted, and positioning precision improves.
Brief description of the drawings
Fig. 1 is the stereogram of the light conductor in linear light source device of the present utility model.
Fig. 2 is the length direction sectional view of light conductor.
Fig. 3 is the stereogram of linear light source device of the present utility model.
Fig. 4 is the sectional view of Fig. 3.
Fig. 5 is the original copy light source device for lighting of having assembled after linear light source device of the present utility model.
Fig. 6 is the skeleton diagram of existing original copy light source device for lighting.
Fig. 7 is the partial perspective view of this linear light source device.
Embodiment
Fig. 1 shows light conductor 2, and this light conductor 2 is made up of translucent material, and the clava that its cross sectional shape is circular has 2 reflecting part 3a, the 3b that are listed as that alongst extend.
This reflecting part 3a, 3b, the length direction at light conductor in the example of Fig. 1 is established multiple small recesses and forms quarter.Certainly, in addition also can make and the reflecting material with reflection characteristic is slenderly cut off and be pasted on the structure of side along light conductor 2.
Figure 2 illustrates the relation of light conductor and light-emitting component, dispose light-emitting component (LED) 5,5 in the both ends of the surface of light conductor 2 in opposed mode.
Wide the causing at the length direction of light conductor 2 of inciding light conductor 2 from light- emitting component 5,5 advanced.Wherein, if oblique incidence is irradiated to reflecting part 3 to the light of light conductor 2, turns back and launch from light-emitting face 4 to opposed direction according to the structure of reflecting part 3.
As mentioned above, by light according to the structure of reflecting part 3 by leaded light, make the utilizing emitted light of self-emission device 5 to be concentrated and launch from the light-emitting face 4 of light conductor 2 for wire.And, by form reflecting part 3 on whole length direction, can make the light conductor 2 that can suitably irradiate predetermined width dimensions more longways at main scanning direction.
In Fig. 3, Fig. 4, illustrate that aforesaid light conductor 2 is held in the mode that keeps platform 6 and form linear light source device 1.
It is resinous keeping the maintenance platform 6 of light conductor 2, and there is the mounting portion 7 with semicircle water guide tubular opening forming according to the shape of light conductor 2, be provided with multiple top engagement pawls 10,10 along the length direction of its opening top edges portion 8, and, be provided with below engagement pawl 11 along the length direction of opening lower edge portion 9.
And as shown in Figure 3, this top engagement pawl 10 and below engagement pawl 11 stagger and are arranged on diverse location on the length direction of described light conductor 2.
, with not can the same position of the length direction of light conductor 2 by above engagement pawl 10 and below the mode of engagement pawl 11 engagements configure.
And, as shown in Figure 4, light conductor 2 be formed with described above the engaging recessed part 12 that engages of engagement pawl 10.This engaging recessed part 12 also can engage with below engagement pawl 11, and, also can be provided with the engaging recessed part separately engaging with this two side's engagement pawl 10,11.
In the time described light conductor 2 being held in to maintenance platform 6, the mode of utilizing the elasticity of engagement pawl 10,11 to press with the side of the mounting portion 7 from keeping platform 6 light conductor 2 embeds.So, the light conductor 2 being embedded in mounting portion 7 utilizes the elastic restoring force of described engagement pawl 10,11 and is fixed on maintenance platform 6.Now, as shown in Figure 4, engagement pawl 10 engages with engaging recessed part 12 and carries out the axial location of light conductor 2 and the location of direction of rotation.
In the time carrying out the maintenance of light conductor 2, so that its reflecting part 3a, 3b are loaded in the mode of mounting portion 7 and to be kept.Thus, being positioned at and the light-emitting face 4 of reflecting part 3a, the opposed position of 3b of light conductor 2, is positioned at foreign side from the mounting portion 7 that keeps platform 6.
In addition, in the example of Fig. 3, showing top engagement pawl 10 is provided with multiple, below engagement pawl 11 and is only provided with the example of 1, but also can be on the contrary, engagement pawl in top is 1, and below engagement pawl 11 is multiple, in addition, also can be according to the length of light conductor 2, both are all set to multiple or 1.
As mentioned above, at the end face that is held in the light conductor 2 that keeps platform 6, as shown in Figure 2, light-emitting component 5 is configured to opposed.In addition, be not limited to light-emitting component 5 to be arranged at the both ends of the surface of light conductor 2, also can be only arranged on an end face.
The original copy light source device for lighting of having assembled after above-mentioned linear light source device 1 is shown, from light-emitting face 4 outgoing and the direct shadow surface 40 of optically focused on original copy from the reverberation P of the 1st reflecting part 3a that remains on the light conductor 2 that keeps platform 6 in Fig. 5.
On the other hand, having speculum 35 with the opposed position configuration of the 2nd reflecting part 3b, reflected from light-emitting face 4 outgoing from the light of this reflecting part 3b by described speculum 35, this reverberation R optically focused is to described shadow surface 40.
As mentioned above, in the utility model, in the linear light source device being formed by light conductor and light source component and maintenance platform and the original copy light source device for lighting that uses this linear light source device, described maintenance platform has for loading described light conductor, with the mounting portion of semicircle water guide tubular opening, this mounting portion possesses along this opening upper side edge part and opening lower side edge part the top engagement pawl and the below engagement pawl that described light conductor are carried out to engagement, on the length direction of described light conductor, stagger and be arranged on different positions by described top engagement pawl and described below engagement pawl, coming can be to be limited to maintenance platform by the light conductor of cross section circular, therefore simple in structure, do not need the installation accuracy of height, rate of finished products when assembling linear light source device becomes good.
And, because the position of upper and lower engagement pawl in the length direction of light conductor does not overlap, therefore can not produce by the extreme illumination of the caused part of configuration status of engagement pawl and decline, can obtain at the well-distributed linear light source device of length direction luminous intensity distribution and original copy light source device for lighting.
And, by form at described light conductor with described above engagement pawl and/or described below the engaging recessed part that engages of engagement pawl, the direction of rotation of light conductor and the movement of length direction are restricted, thereby have improved positioning precision.
Description of reference numerals:
1 linear light source device;
2 light conductors;
3 reflecting parts;
3a the 1st reflecting part;
3b the 2nd reflecting part;
4 light-emitting faces;
5 light-emitting components;
6 keep platform;
7 mounting portions;
8 opening upper side edge parts;
9 opening lower side edge parts;
10 top engagement pawls;
11 below engagement pawls;
12 engaging recessed parts;
15 speculums;
40 original copy shadow surfaces.
Claims (8)
1. a linear light source device, comprise there is the bar-shaped light conductor of light transmission, the light-emitting component of and configuration opposed with the length direction end face of described light conductor and keep the maintenance platform of described light conductor, it is characterized in that,
The cross sectional shape of described light conductor is circular,
Described maintenance platform has the mounting portion with semicircle water guide tubular opening for loading described light conductor,
This mounting portion possesses along its opening upper side edge part and opening lower side edge part the top engagement pawl and the below engagement pawl that described light conductor are carried out to engagement,
Described top engagement pawl and described below engagement pawl stagger and are arranged on different positions on the length direction of described light conductor.
2. the linear light source device of recording according to claim 1, is characterized in that,
Described light conductor be formed with described above engagement pawl and/or described below the engaging recessed part that engages of engagement pawl.
3. the linear light source device of recording according to claim 2, is characterized in that,
Engage with described top engagement pawl and/or described below engagement pawl by described engaging recessed part, described light conductor is positioned.
4. the linear light source device of recording according to claim 1 or 2, is characterized in that,
Described maintenance platform is that resin is made.
5. the linear light source device of recording according to claim 1, is characterized in that,
Described light conductor has light-emitting face and reflecting part,
Described light-emitting face and described reflecting part are formed on respectively the length direction of described light conductor,
The mounting portion that this light conductor is loaded in described maintenance platform by its reflecting part is kept.
6. the linear light source device of recording according to claim 5, is characterized in that,
Be formed with 2 described reflecting parts with the opposed bottom surface portions of described light-emitting face,
The mounting portion that this light conductor is loaded in described maintenance platform by its reflecting part is kept.
7. the linear light source device of recording according to claim 5, is characterized in that,
Described reflecting part is established recess and is formed by carving at described light conductor.
8. an original copy light source device for lighting, is characterized in that,
Possess the linear light source device that described claim 5 is recorded,
And possess speculum, described speculum reflects a part for the emergent light from described linear light source device towards master copy,
The reflecting part of a part for described linear light source device is towards master copy direct irradiation light, and the reflecting part of another part is towards described speculum direct irradiation light.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012273498A JP2014120270A (en) | 2012-12-14 | 2012-12-14 | Linear light source device and light source device for illuminating original |
| JP2012-273498 | 2012-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203661158U true CN203661158U (en) | 2014-06-18 |
Family
ID=50927505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320824856.1U Expired - Lifetime CN203661158U (en) | 2012-12-14 | 2013-12-13 | Linear light source device and light source apparatus for manuscript illumination |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2014120270A (en) |
| CN (1) | CN203661158U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109475837A (en) * | 2016-07-05 | 2019-03-15 | 优志旺电机株式会社 | Light irradiation device |
| CN112664860A (en) * | 2019-10-16 | 2021-04-16 | 矢崎总业株式会社 | Line lighting device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6517509B2 (en) * | 2014-12-26 | 2019-05-22 | テイ・エス テック株式会社 | Decorative members for vehicles |
| JP6947994B2 (en) * | 2019-04-18 | 2021-10-13 | テイ・エス テック株式会社 | Decorative parts for vehicles |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0813186D0 (en) * | 2008-07-18 | 2008-08-27 | 3M Innovative Properties Co | Lighting device comprising a light guide and a support |
| JP5275009B2 (en) * | 2008-12-19 | 2013-08-28 | ローム株式会社 | Light guide, linear light source, and image reading apparatus |
| JP2010218757A (en) * | 2009-03-13 | 2010-09-30 | Ushio Inc | Linear light source device |
-
2012
- 2012-12-14 JP JP2012273498A patent/JP2014120270A/en active Pending
-
2013
- 2013-12-13 CN CN201320824856.1U patent/CN203661158U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109475837A (en) * | 2016-07-05 | 2019-03-15 | 优志旺电机株式会社 | Light irradiation device |
| CN109475837B (en) * | 2016-07-05 | 2020-12-18 | 优志旺电机株式会社 | Light irradiation device |
| CN112664860A (en) * | 2019-10-16 | 2021-04-16 | 矢崎总业株式会社 | Line lighting device |
| CN112664860B (en) * | 2019-10-16 | 2022-08-05 | 矢崎总业株式会社 | Line lighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014120270A (en) | 2014-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |