CN201515428U

CN201515428U - Large-format high-speed cambered surface scanner

Info

Publication number: CN201515428U
Application number: CN2009202106236U
Authority: CN
Inventors: 张敏; 侯先斌
Original assignee: Shanghai Wangsui Digital Technology Co Ltd
Current assignee: Shanghai Wangsui Digital Technology Co Ltd
Priority date: 2009-10-12
Filing date: 2009-10-12
Publication date: 2010-06-23
Anticipated expiration: 2019-10-12

Abstract

The utility model relates to a large-format high-speed cambered surface scanner, which comprises a shell, a scanning window, a light source, an area array CCD fixing frame, at least one area array CCD assembly and a corresponding imaging lens, wherein the scanning window is arranged on the shell and is in the shape of a cambered surface; the light source is placed in the shell and below the scanning window; the area array CCD fixing frame is positioned near the inner bottom of the shell, and at least one area array CCD assembly and the corresponding imaging lens are positioned on the CCD fixing frame; a rotating shaft of the area array CCD fixing frame is driven by a driving mechanism to rotate in a circular arc shape; the axial center of the driving mechanism and the circle center shaft of the scanning window are positioned on the same axial center; and the utility model has the advantages that because the product adopts an area array CCD to collect an image, if the area array CCD with 1 million picture elements is used, the image scanning of 300 DPI in an A0 format only needs to be exposed for 100 times, and thereby the scanning speed can be greatly increased.

Description

Large format high speed cambered surface scanner

Technical field

The utility model relates to a kind of high speed cambered surface scanner at large-scale contribution, relates in particular to imaging lens and area array CCD assembly mechanical realization in this high speed cambered surface scanner.

Background technology

The current scanline instrument is mainly all at the plane contribution, for some professional drawing, precious drawing or calligraphy work, usual preservation all becomes drum, scan on sweep optical square, also needs specially contribution to be flattened, the planarization of contribution pressing is not fine so on the one hand, cause scanning to produce distortion, on the other hand, also can make contribution cause certain damage.

Simultaneously,, need expose more than 13000 time, have a strong impact on sweep speed for the scanning of the contribution of an A0 breadth 300DPI because the line array CCD that conventional scanner adopts is the exposure one by one of each row.

Summary of the invention

The utility model technical issues that need to address have provided a kind of large format high speed cambered surface scanner, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: shell; Also comprise: the scanning form that on shell, is arc shape; Settle in the enclosure, the light source under the scanning form; Near the area array CCD fixed mount of shell inner bottom part and at least one area array CCD assembly and the respective imaging camera lens on the CCD fixed mount; Described area array CCD fixed mount drives rotating shaft by transmission mechanism and becomes the circular arc rotation; The transmission mechanism axle center is positioned on same the axle center with scanning form circle core shaft.

Compared with prior art, the beneficial effects of the utility model are: because this product utilization area array CCD images acquired, if with the area array CCD of 1,000,000 picture elements, the image scanning for the 300DPI of A0 breadth as long as expose 100 times, can improve sweep speed greatly.

Description of drawings

Fig. 1 is a cambered surface vertical direction structure cutaway view of the present utility model;

Fig. 2 is a cambered surface parallel direction structure cutaway view of the present utility model.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

By Fig. 1, Fig. 2 as seen: the utility model comprises: shell 5; Also comprise: the scanning form 7 that on shell 5, is arc shape; Be placed in the shell 5, the light source 6 under the scanning form 7; Near the area array CCD fixed mount 3 of shell 5 inner bottom parts and at least one area array CCD assembly and the respective imaging camera lens 4 on CCD fixed mount 3; Described area array CCD fixed mount 3 drives 1 one-tenth circular arc rotation of rotating shaft by transmission mechanism 2; Transmission mechanism 2 axle center are positioned on same the axle center with scanning form 7 circle core shafts;

Described at least one area array CCD assembly and respective imaging camera lens 4 are 4.

Adopting the utility model is that the scanning contribution is placed on the scanning form, is received by the area array CCD device through the lens imaging in the area array CCD assembly, is transferred to computer by data wire then.Be uniform-distribution with a plurality of area array CCD assemblies along the power transmission shaft direction, be that these a plurality of area array CCD assemblies expose acquisition of image data successively in computer at every turn, and power transmission shaft can turn to a plurality of area array CCD groups the next position continuation exposure then.The area array CCD fixed mount drives rotating shaft by transmission mechanism and becomes the circular arc rotation, all data acquisitions from end points of scanning form to another end points.

The utility model obtains the better pictures quality with the convenient contribution that curls, simultaneously the better protection original copy; For flat bed scanner, it is very little that the cambered surface scanner scans the stroke that the needed lens bracket of the other end rotates from an end of contribution, helps finishing of scanning fast; Plane of scanning motion contribution is also with the duplicate effect of common flat bed scanner; Moreover for the scanner of onesize sweep limits, planar dimension is littler, helps saving the space of hold facility.

Claims

1. a large format high speed cambered surface scanner comprises: shell; It is characterized in that also comprising: the scanning form that on shell, is arc shape; Settle in the enclosure, the light source under the scanning form; Near the area array CCD fixed mount of shell inner bottom part and at least one area array CCD assembly and the respective imaging camera lens on the CCD fixed mount; Described area array CCD fixed mount drives rotating shaft by transmission mechanism and becomes the circular arc rotation; The transmission mechanism axle center is positioned on same the axle center with scanning form circle core shaft.

2. large format high speed cambered surface scanner according to claim 1 is characterized in that: described at least one area array CCD assembly and respective imaging camera lens are 4.