CN1527581A

CN1527581A - Trimmer for CCD board

Info

Publication number: CN1527581A
Application number: CNA031195032A
Authority: CN
Inventors: 叶建良; 李安伦
Original assignee: Transpacific IP Ltd
Current assignee: Transpacific IP Ltd
Priority date: 2003-03-05
Filing date: 2003-03-05
Publication date: 2004-09-08

Abstract

The charge-coupled device CCD board trimmer is suitable for use in trimming the position of CCD board in a scanning assembly. It has one transverse trimming unit, one longitudinal trimming unit and one axial trimming unit to trim the CCD board in X, Y and Z direction separately, and has also one rotating unit to trim the rotation amount around Z axis.

Description

The trimmer of CCD board

Technical field

The invention relates to a kind of trimmer of CCD board, and particularly relevant for a kind of rotation amount of fine-tuning CCD board and the tool of depth of focus.

Background technology

In recent years, because the constantly enhancing of product on processing speed and data storing such as improvement and computer of image acquisition chip, make the usefulness of graphics process significantly increase, and image processing arrangement, as optical scanner, use more continually, and under light, thin, short, little trend, the size of scanner is also moved towards miniaturization and precise treatment.With regard to optical scanner, the light source projects of scan module is to the light of file, after the image of the file at light source irradiation place is by optical system and lens focus, image in charge coupled cell (charge-coupled device, CCD) on.In order to make image that imaging more clearly be arranged, must adjust charge coupled cell to optimum position and adjust distance between camera lens and the charge coupled cell in focal depth range on charge coupled cell.Because its precision requirement height, so needed adjustment tool also must have the accurate localization calibration.

Please refer to the scan module 160 among Fig. 1, generally speaking, the scan module 178 of scanner is made of a shell 176, a camera lens 180, a charge coupled cell 102, a CCD board (CCD/Board) 100, a plurality of reflecting optics (not illustrating) and a lamp source (not illustrating).Wherein charge coupled cell 102 is configured on the CCD board 100, and CCD board 100 is disposed on the shell 176.In addition, have an elastomeric pad 172 between CCD board 100 and the shell 176, and CCD board 100 is locked on the shell 176 with one group of screw 174.

As shown in Figure 1, the lamp source is projected to the light 182 of camera lens 180 via reflecting optics, after camera lens 180 focusing, can be incident upon on the charge coupled cell 102, because light 182 focuses on the back by camera lens 180 and forms a light cone, make the image distance of image can be incident upon the position at charge coupled cell 102 places, wherein the distance between camera lens 180 and the charge coupled cell 102 is suitable with the image distance of image, if be greater than or less than desired focal depth range, all can make image fog unclear.

Being known in CCD board is installed up to after the scan module, can adjust the distance between charge coupled cell and the camera lens, and adjust CCD board optimum position on scan module, and the imaging definition that sees through on the charge coupled cell is adjusted desired position.Yet, resolution raising along with image, known distance and the position of CCD board on scan module of adjusting camera lens and charge coupled cell with manual mode, can't reach desired accurate value, so propose a kind of tool, so that the image quality on the charge coupled cell is done more accurate check and adjustment with fine setting CCD board.

Summary of the invention

Therefore, purpose of the present invention is in the trimmer of the CCD board that proposes a kind of scan module, the position of fine-tuning CCD board on scan module.

For reaching above-mentioned purpose of the present invention, a kind of trimmer of CCD board is proposed, constituted by a chuck, a rotating member and a plurality of fixed mount.Wherein, chuck is in order to fixed charge coupling element plate, and chuck has a pivot, pivot is disposed on the center of chuck, rotating member is disposed on the fixed mount, and rotating member and pivotally connected, and rotating member is the rotation amount at center with the Z axle in order to the fine setting CCD board.

According to a preferred embodiment of the present invention, wherein more comprise a horizontal micromatic setting, a vertical micromatic setting and an axial micromatic setting.Laterally micromatic setting system is in order to the X-direction displacement of fine setting CCD board, and vertically micromatic setting is in order to the Y direction displacement of fine setting CCD board, and axially micromatic setting is in order to the Z-direction displacement of fine setting CCD board.

According to a preferred embodiment of the present invention, wherein laterally micromatic setting, vertical micromatic setting are made of a screw rod, a spring and a platform with axial micromatic setting.Wherein, screw rod and spring are disposed on the fixed mount, and platform is connected with chuck, by the transmission of screw rod and spring, so that platform moves in X-axis, Y-axis and Z-direction respectively.

According to a preferred embodiment of the present invention, wherein also have a plurality of micrometers, be disposed on rotating member and the screw rod.

Description of drawings

Fig. 1 illustrates the schematic diagram of CCD board and chuck in the trimmer of a preferred embodiment of the present invention;

Fig. 2 illustrates the schematic diagram of chuck and rotating member in the trimmer of a preferred embodiment of the present invention;

Fig. 3 illustrates in the trimmer of a preferred embodiment of the present invention the chuck and the horizontal schematic diagram of micromatic setting;

Fig. 4 illustrates in the trimmer of a preferred embodiment of the present invention the chuck and the vertical schematic diagram of micromatic setting;

Fig. 5 illustrates in the trimmer of a preferred embodiment of the present invention the chuck and the axial schematic diagram of micromatic setting; And

Fig. 6 illustrates the stereogram of trimmer of the CCD board of a preferred embodiment of the present invention.

100: CCD board

102: charge coupled cell

120: chuck

122: pivot

130: rotating member

132a, 132b, 132c, 132d: micrometer

140,140a, 140b, 140c, 140d, 140e, 140f: fixed mount

150: horizontal micromatic setting

150a, 160a, 170a: screw rod

150b, 150b, 150c, 184: platform

150c, 160c, 170c: spring

160: vertical micromatic setting

170: axial micromatic setting

172: elastomeric pad

174: screw

176: shell

178: scan module

180: camera lens

182: light

200: trimmer

Embodiment

Please be simultaneously with reference to Fig. 1, Fig. 2, wherein Fig. 1 is the schematic diagram of chuck and CCD board in the trimmer of a preferred embodiment of the present invention, and Fig. 2 illustrates the schematic diagram of chuck and rotating member in the trimmer of a preferred embodiment of the present invention.Trimmer mainly is in order to the position of fine setting CCD board 100 on scan module 178, wherein defining X-axis is the lateral displacement direction of CCD board 100 on scan module 178, and Y-axis is the length travel direction of CCD board 100 on scan module 178, and the Z axle is the axial displacement direction of CCD board 100 on scan module 178, and the Z axle is the direction that is projected to charge coupled cell 102 after light 182 focuses on via camera lens 180.

As shown in Figure 1, CCD board 100 is disposed on the shell 176 of scan module 178, and charge coupled cell 102 is disposed on the CCD board 100, utilize the edge of the chuck 120 of trimmer with fixed charge coupling element plate 100, and chuck 120 has a pivot 122, the surface of pivot 122 for example has helical structure, and pivot 122 is positioned on the appropriate location of chuck 120, is on the position of center rotation with the Z axle for example.

As shown in Figure 2, rotating member 130 is disposed on the fixed mount 140a, and rotating member 130 for example disposes a micrometer, and rotating member 130 is connected with pivot 122, rotate with driven pivot 122 along the displacement of Y direction by rotating member 130, so can make chuck 120 and CCD board 100 is the center rotation with the Z axle.

Please refer to Fig. 3, it illustrates in the trimmer of a preferred embodiment of the present invention the chuck and the horizontal schematic diagram of micromatic setting.Laterally micromatic setting 150 is the X-direction displacement in order to fine setting CCD board 100.Laterally micromatic setting 150 is made of a screw rod 150a, a spring 150c and a platform 150b.Wherein, screw rod 150a and spring 150c are disposed at respectively on fixed mount 140b, the 140c, and platform 150b is connected with chuck 120, by the transmission of screw rod 150a and spring 150c, so that platform 150b and chuck 120 move in X-direction.

Please refer to Fig. 4, it illustrates in the trimmer of a preferred embodiment of the present invention the chuck and the vertical schematic diagram of micromatic setting.Vertically micromatic setting 160 is the Y direction displacement in order to fine setting CCD board 100.Vertically micromatic setting 160 is made of a screw rod 160a, a spring 160c and a platform 160b.Wherein, screw rod 160a and spring 160c are disposed at respectively on fixed mount 140d, the 140e, and platform 160b is connected with chuck 120, by the transmission of screw rod 160a and spring 160c, so that platform 160b and chuck 120 move in Y direction.

Please refer to Fig. 5, it illustrates in the trimmer of a preferred embodiment of the present invention the chuck and the axial schematic diagram of micromatic setting.Axially micromatic setting 170 is in order to the Z-direction displacement of fine setting CCD board 100.Axially micromatic setting 170 is made of a screw rod 170a, a spring 170c and a platform 170b.Wherein, screw rod 170a and spring 170c are disposed on the fixed mount 140f, and platform 170b is connected with chuck 120, by the transmission of screw rod 170a and spring 170c, so that platform 170b and chuck 120 move in Z-direction.

Please refer to Fig. 6, it illustrates the stereogram of trimmer of the CCD board of a preferred embodiment of the present invention.From the above, CCD board 100 can pass through horizontal micromatic setting 150, vertical micromatic setting 160 and axial micromatic setting 170, respectively the displacement of X-axis, Y-axis and the Z-direction of CCD board 100 on scan module 178 is finely tuned, and be that the rotation amount at center is finely tuned with the Z axle by 130 pairs of CCD boards 100 of rotating member.

Therefore, do more detailed explanation again by the preferred embodiment that Fig. 6 illustrated, as shown in Figure 6, the trimmer 200 of CCD board is made of a chuck 120, a rotating member 130, fixed mount 140, horizontal micromatic setting 150, vertical micromatic setting 160 and axial micromatic setting 170.Wherein, axially micromatic setting 170 for example is disposed on the platform 184, and laterally micromatic setting 150 for example is disposed on the axial micromatic setting 170, and vertically micromatic setting 160 for example is connected with horizontal micromatic setting 150.In addition, fixed mount 140 for example is disposed on horizontal micromatic setting 150, vertical micromatic setting 160, axial micromatic setting 170 and the platform 184.As shown in Figure 6, by

screw rod

150a, 160a, 170a and

spring

150c, 160c, the 170c that is disposed at X-axis, Y-axis and Z-direction respectively,

platform

150b, 160b, 170b are distinctly moved along X-axis, Y-axis and Z axle, and drive anchor clamps 120 and CCD board 100, and then the work that the displacement of X-axis, Y-axis and the Z-direction of CCD board 100 on scan module 178 is finely tuned.

Being familiar with this skill person all knows, because X-axis, Y-axis, can not interact between the displacement of Z axle, therefore the disalignment of can arranging in pairs or groups to micromatic setting assemble trimmer, for example install by a chuck, the trimmer that a plurality of fixed mount and arbitrary axial micromatic setting constituted carries out adjustment, or installing is by a chuck, the trimmer that a plurality of fixed mounts and wantonly two axial micromatic settings are constituted carries out adjustment, or installing is by a chuck, a plurality of fixed mounts, the trimmer that one rotating member and arbitrary or wantonly two axial micromatic settings are constituted carries out adjustment, all can reach the effect of fine setting CCD board.

In sum, the trimmer of CCD board of the present invention has following advantage at least:

1. the trimmer of CCD board of the present invention utilizes rotating member, is the rotation amount at center with the Z axle with the fine setting CCD board on scan module.

2. the trimmer of CCD board of the present invention utilizes horizontal micromatic setting, with the X-direction displacement of fine setting CCD board on scan module.

3. the trimmer of CCD board of the present invention utilizes vertical micromatic setting, with the Y direction displacement of fine setting CCD board on scan module.

4. the trimmer of CCD board of the present invention utilizes axial micromatic setting, with the Z-direction displacement of fine setting CCD board on scan module.

Claims

1. the trimmer of a CCD board is suitable for finely tuning the position of a CCD board in the one scan module, it is characterized in that it comprises at least:

One chuck, it fixes this CCD board, and this chuck has a pivot, and this pivot is positioned on the appropriate location of this chuck;

A plurality of fixed mounts connect this chuck;

One rotating member is disposed on those fixed mounts, and this rotating member is pivotally connected with this, and this rotating member is the rotation amount at center with the Z axle in order to finely tune this CCD board;

One horizontal micromatic setting is disposed on those fixed mounts, and it finely tunes the X-direction displacement of this CCD board;

One vertical micromatic setting is disposed on those fixed mounts, and it finely tunes the Y direction displacement of this CCD board; And

One axial micromatic setting is disposed on those fixed mounts, and it finely tunes the Z-direction displacement of this CCD board.

2. the trimmer of CCD board as claimed in claim 1, it is characterized in that, this horizontal micromatic setting has one first screw rod, one first spring and one first platform, wherein this first screw rod and this first spring are disposed on those fixed mounts, and this first platform is connected with this chuck, by the transmission of this first screw rod and this first spring, so that this first platform moves in X-direction.

3. the trimmer of CCD board as claimed in claim 2 is characterized in that, this horizontal micromatic setting more comprises one first micrometer, is connected with this first screw rod.

4. the trimmer of CCD board as claimed in claim 1, it is characterized in that, this vertical micromatic setting has one second screw rod, one second spring and one second platform, this second screw rod and this second spring are disposed on those fixed mounts, and this second platform is connected with this chuck, by the transmission of this second screw rod and this second spring, so that this second platform moves in Y direction.

5. the trimmer of CCD board as claimed in claim 4 is characterized in that, this vertical micromatic setting more comprises one second micrometer, is connected with this second screw rod.

6. the trimmer of CCD board as claimed in claim 1, it is characterized in that, this axial micromatic setting has one the 3rd screw rod, one the 3rd spring and one the 3rd platform, the 3rd screw rod and the 3rd spring are disposed on those fixed mounts, and the 3rd platform is connected with this chuck, by the transmission of the 3rd screw rod and the 3rd spring, so that the 3rd platform moves in Z-direction.

7. the trimmer of CCD board as claimed in claim 6 is characterized in that, more comprises one the 3rd micrometer, is connected with the 3rd screw rod.

8. the trimmer of CCD board as claimed in claim 1 is characterized in that, more comprises one the 4th micrometer, is connected with this rotating member.