CN1893569A - Mobilization structure of solid video camera appliance, image reading unit and image forming device - Google Patents
Mobilization structure of solid video camera appliance, image reading unit and image forming device Download PDFInfo
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- CN1893569A CN1893569A CN 200610094101 CN200610094101A CN1893569A CN 1893569 A CN1893569 A CN 1893569A CN 200610094101 CN200610094101 CN 200610094101 CN 200610094101 A CN200610094101 A CN 200610094101A CN 1893569 A CN1893569 A CN 1893569A
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- holding member
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- photographic device
- solid photographic
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Abstract
The present invention provided a fixed structure of a solid-state imaging element capable of highly keeping positional accuracy between a frame and the solid-state imaging element by suppressing deformation of an intermediate support member even when the solid-state imaging element is driven, and to provide an image reading unit and an image forming apparatus. In the fixed structure of the solid-state imaging element 154 for joining and fixing the solid-state imaging element 154 and the frame 2 for supporting it via the intermediate support member 4, the frame 2 with a higher thermal conductivity than that of the intermediate support member 4 is used.
Description
Technical field
The present invention relates to the fixed structure of solid photographic device, the fixed structure of employed solid photographic device in the image processing system of reproducing unit, facsimile machine, scanner, draught machine and the compounding machine etc. that specifically relate to use solid photographic devices such as CCD to read optical image.
Background technology
In the past, solid photographic devices such as use CCD read image as optical image image read-out read object imaging on solid photographic device by being situated between by imaging len.
Fixing means as above-mentioned solid photographic device, in " patent documentation 1 " following technology is disclosed for example, promptly, holding member in the middle of between framework and solid photographic device, being provided with, because bonding agent shrinks the framework that causes and the offset of solid photographic device, improve the relative positional accuracy of framework and solid photographic device by absorbing by middle holding member.
Patent documentation 1: the spy opens the 2001-313779 communique
In above-mentioned technology, because framework and middle holding member are made of the low parts of thermal conductivity, even so when solid photographic device drives, accept the heat that solid photographic device sends by middle holding member, also can't pass to framework, as shown in Figure 6, because heat is trapped in the middle holding member like this, thereby existence makes middle holding member distortion (thermal expansion) occur and the problem of generation offset between framework and solid photographic device.
Summary of the invention
The objective of the invention is to, address the above problem, though provide when solid photographic device drives, also can suppress in the middle of holding member distortion and keep fixed structure, image fetching unit and the image processing system of solid photographic device of the positional precision of framework and solid photographic device accurately.
In order to address the above problem, the fixed structure of solid photographic device of the present invention, it possesses: the middle holding member of fixed solid picture pick-up device and the framework that is used to install this centre holding member, it is characterized in that described framework is by the material with thermal conductivity higher than holding member in the middle of described.
According to the present invention, because framework is by the material with thermal conductivity higher than middle holding member, so the heat of when solid photographic device drives, being sent from middle holding member to the framework transmission, by suppressing heat retention in middle holding member in the high framework loses heat of thermal diffusivity, thereby the distortion that holding member produces owing to heat in the middle of suppressing suppresses the reduction of the positional precision of framework and solid photographic device.
Description of drawings
Fig. 1 is the summary front elevation that can be suitable for the image processing system of each embodiment of first to the 3rd of the present invention;
Fig. 2 is the synoptic diagram of the employed image fetching unit of the explanation first embodiment of the present invention;
Fig. 3 is the synoptic diagram of the action effect of explanation first embodiment of the invention;
Fig. 4 is the synoptic diagram of the employed image fetching unit of the explanation second embodiment of the present invention;
Fig. 5 is the synoptic diagram of the employed image fetching unit of the explanation third embodiment of the present invention;
Fig. 6 is the synoptic diagram of the problem points of the existing image read-out of explanation.
Embodiment
Fig. 1 represents to be suitable for the image processing system 100 of image fetching unit 1 of the present invention.This image processing system 100 comprises: auto document feeder 101, manuscript reading section 150, writing station 157, paper feed 130 and after-treatment device 140.
Manuscript reading section 150 is made of optical scanning system etc., and this optical scanning system has lens 153, CCD154 etc.
Original image is read and is carried out becoming from converting optical signals the processing of the signal of telecommunication by CCD154.When making lens 153 and CCD154 right and left moves up in Fig. 1, can change the image multiplying power.That is, set the position of lens 153 and CCD154 according to the image multiplying power of appointment.Lens 153 and CCD154 composing images reading unit 1.
As shown in Figure 2, image fetching unit 1 has lens 153 and the CCD154 that is maintained on the framework 2.Lens 153 make image imaging on each pixel line that according to pixels is provided with of photoactors such as CCD154 (solid photographic device) of original copy.Framework 2 presents roughly L shaped shape, with its bottom surface 2a with the not shown plate-shaped member state of contact that is arranged at manuscript reading section 150 under fix by suitable method such as screw.On framework 2, be equipped with the preceding group of lens 153a that constitutes lens 153 on the 2b and organize lens 153b with the back.Each lens 153a, 153b, the not shown V-shaped groove on utilization is formed on the 2b determine that scioptics holding member 3 is held with respect to framework 2 respectively under the state of its light shaft positive cross direction position.
On the longitudinal wall face 2c of framework 2, have substrate 154a integratedly, and set CCD154 as the line style photoactor of pixel line with redness (R), green (G), blue (B).CCD154 is situated between and is fixed on the longitudinal wall face 2c by holding member 4 in the middle of a plurality of, holding member 4 and holding member 4 and longitudinal wall face 2c in the middle of each in the middle of CCD154 and each are by for example being adhesively fixed under the state of framework 2 and the positional precision of CCD154 as the ultraviolet hardening bonding agent of bonding agent and keeping.This bonding agent is preferably the high bonding agent of thermal conductivity, for example is to contain the high metal dust of thermal conductivitys such as silver or aluminium and the bonding agent that improves thermal conductivity.Method is with existing identical, so detailed owing to be adhesively fixed.
In this embodiment, form each of L shaped shape roughly in the middle of holding member 4 constitute by seeing through ultraviolet resin respectively, framework 2 by than the high material of each centre holding member 4 thermal conductivity for example the metal material of aluminium, copper, silver etc. constitute.Perhaps, the surface area of the face of the longitudinal wall at least 2c of framework 2 forms greatlyyer than the surface area of holding member 4 in the middle of each.
According to said structure, because the longitudinal wall face 2c of framework 2 is by the material with thermal conductivity higher than middle holding member 2, so as shown in Figure 3, the heat that CCD154 sends when driving is transmitted to framework 2 from each middle holding member 4, suppressed heat retention in each middle holding member 4 by loses heat in the high framework 2 of thermal diffusivity, thereby suppress the distortion that each middle holding member 4 is produced by heat, suppress the reduction of the positional precision of framework 2 and CCD154.And then, because the surface area of each middle holding member 4 of the surface area ratio of the longitudinal wall face 2c of framework 2 is big, so as shown in Figure 3, the heat that CCD154 sends when driving can not be trapped in each middle holding member 4, but promptly transmit and distributed, thereby suppressed the thermal expansion of middle holding member 4 to the big framework of area 2.
Fig. 4 has represented to adopt the image fetching unit 5 of the second embodiment of the present invention.This image fetching unit 5 is compared with the image fetching unit 1 shown in first embodiment, has only used difference on framework 6 this point at alternative framework 2, and other structure is identical.Image fetching unit 5 also can be applicable to the image reading unit 150 of image processing system 100.
Framework 6 is by as the first parts 6A of plate-shaped member with the first parts 6A all-in-one-piece is set and constitutes as the second parts 6B of plate-shaped member, with the bottom surface 6Ba of the second parts 6B with the not shown plate-shaped member state of contact that is arranged at manuscript reading section 150 under method that to utilize screw etc. suitable fix.The preceding group of lens 153a that constitutes lens 153 is maintained at respectively on the top 6Bb of the second parts 6B with back group lens 153b scioptics holding member 3.
The first parts 6A make its bottom surface 6Aa and above utilize under the 6Bb state of contact screw or suitable method such as bonding to be fixed on integratedly on the second parts 6B.On the longitudinal wall face 6Ab of the first parts 6A, be situated between and utilize the ultraviolet hardening bonding agent CCD154 that is adhesively fixed, make framework 6 and CCD154 keep mutual positional precision by holding member 4 in the middle of each.
In this embodiment, the first parts 6A by than holding member 4 thermal conductivitys are high in the middle of each material for example the metal material of aluminium, copper, silver etc. constitute, the second parts 6B by than the low material of the first parts 6A thermal conductivity for example resin material such as Merlon, polypropylene constitute.In addition, the surface area of the longitudinal wall face 6Ab of at least the first parts 6A of framework 6 forms greatlyyer than the surface area of holding member 4 in the middle of each.
According to said structure, the heat that CCD154 sends when driving is transmitted to the first parts 6A from each middle holding member 4, by loses heat in than the first parts 6A that holding member 4 surface areas are big and thermal diffusivity is high in the middle of each, suppressed heat retention in each middle holding member 4, thereby holding member 4 is owing to the distortion that heat produces in the middle of having suppressed each, has suppressed the reduction of framework 6 with the positional precision of CCD154.
In addition,, for example can utilize resin material to make the second parts 6B, thereby can make the second parts 6B, and can improve the design freedom of framework 6 with the shape of complexity by the second parts 6B is adopted than the low material of the first parts 6A thermal conductivity.
In a second embodiment, though used for example resin material of Merlon, polypropylene etc. as the second parts 6B, so long as then be not limited thereto than the low material of the first parts 6A thermal conductivity.In addition, in a second embodiment, though adopted the bottom surface 6Aa that makes the first parts 6A and the top 6Bb contacting structure of the second parts 6B, but so long as at least with each in the middle of the first parts 6A that contact of holding member 4 have the thermal conductivity higher than each centre holding member 4, and the first parts 6A is different materials with the second parts 6B, then also can adopt Any shape and structure.
Fig. 5 has represented to adopt the image fetching unit 7 of the third embodiment of the present invention.This image fetching unit 7 is compared with the image fetching unit 5 shown in second embodiment, and only different on having as light-blocking member 8 this point of light shielding part, other structure is identical.Image fetching unit 7 also can be applicable to the image reading unit 150 of image processing system 100.
Light-blocking member 8 is made of resin, and it is provided on the top 6Bb in the mode with the space covering between lens 153 and back group lens 153b and the first parts 6A.Light-blocking member 8 utilizes screw or is fixed on the second parts 6B by suitable methods such as not shown fastener card end.
By said structure, except have with the same action effect of second embodiment, can also form thereby can carry out high-precision image by by light-blocking member 8 gap of preceding group of lens 153a and back group lens 153b being covered and can blocking ambient light.In addition, can prevent dust etc. invade before group lens 153a and the gap of back group lens 153b and the space between the back group lens 153b and the first parts 6A, thereby can carry out high-precision image formation.
In each above-mentioned embodiment, though represented to use lens barrel to be divided into the preceding example of organizing two body structures of lens 153a and back group lens 153b by two as lens 153, but be not limited thereto as lens, also can use the lens of one lens barrel type or have lens more than or equal to three lens barrels of cutting apart.
And then, in the various embodiments described above, though the example that is to use electrophotographic copying machine as each image fetching unit 1,5,7 image processing system 100 expression applicatory, but be not limited thereto as image processing system, and so long as facsimile machine, scanner, draught machine and compounding machine etc. possess the equipment that the solid photographic device that uses CCD etc. reads the image fetching unit of optical image, the present invention can both be suitable for.
Claims (8)
1, a kind of fixed structure of solid photographic device, it possesses: the middle holding member of fixed solid picture pick-up device and the framework that is used to install this centre holding member, it is characterized in that,
Described framework is by the material with thermal conductivity higher than holding member in the middle of described.
2, the fixed structure of solid photographic device as claimed in claim 1 is characterized in that,
Described framework has: first parts that described middle holding member is installed; And second parts that keep lens, these lens are imaged on the described solid photographic device picture, and wherein, at least the first parts have than the high thermal conductivity of holding member in the middle of described.
3, the fixed structure of solid photographic device as claimed in claim 2 is characterized in that,
The surface area of described at least second parts is bigger than the area that is installed in the middle holding member on described second parts.
4, the fixed structure of solid photographic device as claimed in claim 1 is characterized in that,
Described solid photographic device and described in the middle of utilize bonding agent to fix respectively between holding member and the described framework between the holding member and in the middle of described.
5, the fixed structure of solid photographic device as claimed in claim 4 is characterized in that,
First parts are made of metal, and second parts and middle holding member are made of resin.
6, the fixed structure of solid photographic device as claimed in claim 5 is characterized in that,
Second parts have the light shielding part that blocks ambient light.
7, a kind of image fetching unit is characterized in that, has the fixed structure of each described solid photographic device of claim 1 to 6.
8, a kind of image processing system is characterized in that, has the described image fetching unit of claim 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005188772A JP4157880B2 (en) | 2005-06-28 | 2005-06-28 | Solid imaging device fixing structure, image reading unit, and image forming apparatus |
| JP188772/05 | 2005-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1893569A true CN1893569A (en) | 2007-01-10 |
| CN1893569B CN1893569B (en) | 2011-03-30 |
Family
ID=37598029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100941015A Expired - Fee Related CN1893569B (en) | 2005-06-28 | 2006-06-22 | Mobilization structure of solid video camera appliance, image reading unit and image forming device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4157880B2 (en) |
| CN (1) | CN1893569B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101674406B (en) * | 2008-09-11 | 2012-01-25 | 佳能株式会社 | Imaging apparatus |
| CN102811302A (en) * | 2011-05-31 | 2012-12-05 | 佳能株式会社 | Document reading apparatus |
| CN103458149A (en) * | 2012-05-30 | 2013-12-18 | 佳能株式会社 | Image reading apparatus and assembling method |
| TWI650017B (en) * | 2015-06-26 | 2019-02-01 | 寧波舜宇光電信息有限公司 | Camera module bracket based on metal powder molding, manufacturing method and application thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014053752A (en) * | 2012-09-07 | 2014-03-20 | Ricoh Co Ltd | Document reading module, built-in scanning unit, document reader, automatic document transport device and image forming apparatus |
| CN103077953A (en) * | 2012-12-21 | 2013-05-01 | 中国科学院长春光学精密机械与物理研究所 | Focal plane CCD (Charge Coupled Device) heat control device of space optical remote sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004075881A (en) * | 2002-08-20 | 2004-03-11 | Idemitsu Petrochem Co Ltd | Optical component |
-
2005
- 2005-06-28 JP JP2005188772A patent/JP4157880B2/en not_active Expired - Fee Related
-
2006
- 2006-06-22 CN CN2006100941015A patent/CN1893569B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101674406B (en) * | 2008-09-11 | 2012-01-25 | 佳能株式会社 | Imaging apparatus |
| CN102811302A (en) * | 2011-05-31 | 2012-12-05 | 佳能株式会社 | Document reading apparatus |
| CN102811302B (en) * | 2011-05-31 | 2016-04-13 | 佳能株式会社 | document reading apparatus |
| CN103458149A (en) * | 2012-05-30 | 2013-12-18 | 佳能株式会社 | Image reading apparatus and assembling method |
| US9386182B2 (en) | 2012-05-30 | 2016-07-05 | Canon Kabushiki Kaisha | Image reading apparatus and assembling method |
| TWI650017B (en) * | 2015-06-26 | 2019-02-01 | 寧波舜宇光電信息有限公司 | Camera module bracket based on metal powder molding, manufacturing method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1893569B (en) | 2011-03-30 |
| JP2007013333A (en) | 2007-01-18 |
| JP4157880B2 (en) | 2008-10-01 |
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Granted publication date: 20110330 Termination date: 20210622 |