CN101500059A

CN101500059A - Scanner

Info

Publication number: CN101500059A
Application number: CNA2009100773085A
Authority: CN
Inventors: 白明; 方凌云
Original assignee: HANGZHOU HUAKAI TECHNOLOGY Co Ltd
Current assignee: HANGZHOU HUAKAI TECHNOLOGY Co Ltd
Priority date: 2009-02-17
Filing date: 2009-02-17
Publication date: 2009-08-05
Anticipated expiration: 2029-02-17
Also published as: CN101500059B

Abstract

The invention provides a scanner, which comprises a linear CCD frame used for scanning imagery and a prolate axis used for providing scanning stroke, wherein a first end of the linear CCD frame is set up on the prolate axis; the prolate axis is provided with a first bracket connected with a second end of the linear CCD frame and a second bracket connecting the linear CCD frame and the first bracket; and the linear CCD frame, the first bracket and the second bracket form a right-angled triangle structure which takes the first bracket as a hypotenuse. By applying the relative stabilization principle of the triangle, the invention adds the first bracket and the second bracket on the prolate axis of the scanner and leads the first bracket, the second bracket and the linear CCD frame to form a triangle by mutual connection so as to increase the stability of the linear CCD frame in the horizontal direction and reduce the scanning mechanical error caused by the vibration of the linear CCD frame, thus leading the scanning pattern image to be more clear and improving the scanning quality.

Description

Scanner

Technical field

The present invention relates to the image scanning technical field, relate in particular to a kind of scanner.

Background technology

Along with popularizing of office computer technology, scanner becomes people's requisite visual plant of handling official business gradually.The application scanning instrument can be converted into manuscript, photo etc. and calculate the form that function reads by scanning, used for people.

Fig. 1 is scaning treatment device structural representation in the existing scanner.The main part of scanner comprises housing, housing is provided with the glass table top, this glass table top is used to carry and is scanned image, in housing, be provided with scaning treatment device 5 (1 only illustrates this part-structure among the figure), as shown in Figure 1, in this device along the horizontal direction of scanner be provided with a major axis guide frame 1 (hereinafter to be referred as: major axis), major axis 1 is provided with linear CCD frame 2, this linear CCD frame 2 can along major axis 1 in the horizontal direction V go up and slide.Camera lens, photoelectric sensor and the light source etc. that are provided with on the linear CCD frame 2 are used to realize to being scanned the imaging function of image.In the scaning treatment device structure as shown in Figure 1, linear CCD frame 2 one ends are set up on major axis 1, and can occur mechanical oscillation inevitably in the process of sliding along major axis 1 is that linear CCD frame 2 integral body are that the V direction is vibrated along major axis 1.Under the situation that the definition of scan image is had relatively high expectations, the mechanical oscillation of linear CCD frame 2 will have a strong impact on scanning result, and the quality of scanning of scan image is lower.

Summary of the invention

Purpose of the present invention just provides a kind of scanner, to solve the lower defective of quality of scanning that causes scan image in the prior art because of the mechanical oscillation in the linear CCD frame motion process.

The invention provides a kind of scanner, comprise linear CCD frame that is used for scanning imagery and the major axis that is used to provide swash width, the first end of described linear CCD frame is set up on described major axis, described major axis is provided with first support that is connected with the second end of described linear CCD frame, also comprise second support that connects described linear CCD frame and described first support, the triangular structure of right angle that it is hypotenuse that described linear CCD frame, first support and second support form with described first support.

Scanner provided by the invention is to use the metastable principle of triangle, on major axis, set up first support and second support, and make first support and second support and linear CCD frame be interconnected to form triangle, increase linear CCD frame stability in the horizontal direction, the scanning machine error that less linear CCD frame vibration causes, make scan image more clear, quality of scanning is provided.

Description of drawings

Fig. 1 is scaning treatment device structural representation in the existing scanner;

Fig. 2 is scaning treatment device structural representation in the scanner of the present invention.

Embodiment

Further specify the technical scheme of the embodiment of the invention below in conjunction with the drawings and specific embodiments.

Scanner generally comprises shell and built-in in the enclosure scaning treatment device, the upper surface of shell is provided with and is used to carry the glass table top that is scanned image, be scanned image and tip upside down on the glass table top, scaning treatment device just can carry out scanning imagery to being scanned image.Fig. 2 is scaning treatment device structural representation in the scanner of the present invention, as shown in Figure 2, scaning treatment device 5 in the scanner provided by the invention comprises major axis 1 and linear CCD frame 2, and wherein linear CCD frame 2 is provided with (not shown)s such as camera lens, photoelectric sensor and light source and is used to finish to being scanned the scanning imagery of image; Major axis 1 is used to linear CCD frame 2 that swash width is provided.As shown in Figure 2, the first end 21 of linear CCD frame 2 is set up on major axis 1, and the other end is the second end 22 unsettled settings of linear CCD frame 2, and linear CCD frame 2 is vertical with major axis 1.

In the scaning treatment device provided by the invention, also be provided with first support 3 and second support 4 on major axis 1, as shown in Figure 2, an end of first support 3 is connected with the second end 22 of linear CCD frame 2, and the other end is set up on major axis 1; Second support 4 connects first support 3 and linear CCD frame 2, being specially second support 4 connects first support 3 and sets up the end on major axis 1 and the first end 21 of linear CCD frame 2, as seen from the figure, it is the triangular structure of right angle of hypotenuse that linear CCD frame 2, first support 3 and second support 4 form with first support 3, according to triangle relative fixed principle, the triangular structure of right angle of formation can reduce the horizontal vibration of linear CCD frame 2 on the V direction.One end of first support 3 is set up on major axis 1 has annexation with major axis 1, promptly major axis 1 provides certain pulling force for first support 3 on horizontal plane, there are two fixing points like this in the whole triangular structure of right angle of Xing Chenging, one is the tie point between linear CCD frame 2 and the major axis 1, another is the tie point between first support 3 and the major axis 1, therefore further increased the triangular structure stability in the horizontal direction that linear CCD frame 2, first support 3 and second support 4 form, promptly any limit all can not vibrate on the V direction.

Present embodiment is to use the metastable principle of triangle, set up first support and second support on the major axis in scanner, and make first support and second support and linear CCD frame be interconnected to form triangle, increase linear CCD frame stability in the horizontal direction, the scanning machine error that less linear CCD frame vibration causes, make scan image more clear, quality of scanning is provided.

Linear CCD frame with triangular structure is provided with light source, after being scanned image and being placed on the glass table top on the shell, be positioned at be scanned image below light source to being scanned image emissions light, irradiate light is to being scanned on the image, and for example on the CCD/B photoelectrical coupler, finish the scanning of scanning area image to photoelectric sensor by the lens imaging on the linear CCD frame.Linear CCD frame 2 slidably reciprocates at the drive lower edge of motor, belt major axis 1 and finishes swash width, promptly finishes the scanning that is scanned image to whole.As shown in Figure 2, the swash width distance of the linear CCD frame 2 of this structure is L, when linear CCD frame 2 when the drive lower edge of motor, belt major axis 1 slides, first support 3 slides at major axis 1 with linear CCD frame 2, and second support 4 is also along with the linear CCD frame 2 and first support 3 slide along the V direction together.In sliding process, because the restriction of first support 3 and second support 4, linear CCD frame 2 reduces greatly in the vibration of V direction, has strengthened the stability and the definition of lens imaging on the linear CCD frame 2, the ambiguous situation of individual areas can not appear in the image that scanning is come out, and has improved quality of scanning.

In the scanner that the foregoing description provides, can also fixedly muscle be set at the triangular structure of right angle that forms by linear CCD frame 2, first support 3 and second support 4, with further reinforcement linear CCD frame stability in the horizontal direction.Scanner provided by the invention is by forming triangular supports to reduce the machine error of the scan image that causes because of the mechanical oscillation of linear CCD frame.

It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1, a kind of scanner, comprise linear CCD frame that is used for scanning imagery and the major axis that is used to provide swash width, the first end of described linear CCD frame is set up on described major axis, it is characterized in that, described major axis is provided with first support that is connected with the second end of described linear CCD frame, also comprise second support that connects described linear CCD frame and described first support, the triangular structure of right angle that it is hypotenuse that described linear CCD frame, first support and second support form with described first support.

2, scanner according to claim 1 is characterized in that, describedly also is provided with fixedly muscle in the triangular structure of right angle that described linear CCD frame, first support and second support form.