CN2509591Y - Small size scanning assembly - Google Patents

Abstract

The utility model discloses a small size scanning assembly, which comprises a beam bending device, a first reflector, a lens, a light sensing element and a second reflector. The image information that is obtained by scanning files is reflected by the beam bending device and the first reflector, and then is focalized by the lens and reflected to the light sensing element through the second reflector. Therefore, the utility model can decrease the volume of the scanning assembly without changing the light path, and achieve the miniaturization aim; moreover, the small size scanning assembly can obtain different resolutions by using the scanning assembly with the same volume, so as to satisfy the product requirements of short, small, light and thin.

Description

The scan components of miniaturization

Technical field

The utility model relates to a kind of scan components that is used on the scanner, particularly is used for the miniaturization scan components of light ray bending device.

Background technology

Fig. 1 is the arrangement plan of the known scan components 10 of expression.This scan components 10 disposes one group of light ray bending device 12, a catoptron 13, lens 14 and a light sensing element 15 on a pedestal 11.Wherein, this light device 12 that turns back comprises two relative catoptrons 16,17.This light sensing element 15 is configured in the rear of these lens 14.

Fig. 2 is the known scan components light path synoptic diagram of expression.The image information 18 that is obtained behind the scanning document reflects in this light ray bending device 12 advances, and after these catoptron 13 reflections, is focused on by these lens 14, and is received by this light sensing element 15.Reach required different resolution by the distance of adjusting 15 of these lens 14 and this light sensing elements.For example resolution is adjusted to 600dpi by 300dpi, and this light sensing element 15 (shown in dotted line) must be further from these lens 14.

Fig. 3 is the arrangement plan of expression paper supply formula pedestal 20 and scan components 10.On paper supply formula scanner (sheet-fed scanner), this scan components 10 is an assembly of making separately, and this scan components 10 can be assembled on this paper supply formula pedestal 20.But because the volume of the scan components of resolution 600dpi is greater than the scan components volume (by as can be known shown in Figure 2) of resolution 300dpi, thus the scan components of resolution 600dpi can't with the paper supply formula pedestal 20 of the shared same specification of scan components of 300dpi.

On platform-type scanner (flat-bed scanner), resolution improves and causes simultaneously that also the scan components volume becomes big, therefore for the design and manufacturing of whole scanner, can't satisfy short and small frivolous product demand.

Summary of the invention

Fundamental purpose of the present utility model provides a kind of scan components, and the image information that makes the scanning document gained,, is received by light sensing element angle of original optical path turnover again through primary event through after the lens focus again, reaches the purpose of miniaturization whereby.

According to the described purpose of the utility model, its embodiment is meant a kind of scan components of miniaturization, and this scan components comprises in order to receive and to handle the image information that scanning document obtained:

One light ray bending device, this light ray bending device is made up of two catoptrons that face one another at least, in order to receive the resulting image information of scanning document;

Be used to receive and reflect one first catoptron of this light ray bending image information that device spreads out of;

Be used to receive go forward side by side lens of line focusing of image information that this first catoptron transferred out;

Be configured in the rear of these lens and in order to receive and to reflect one second catoptron of the image information after this lens focus; And

Be used to receive and handle a light sensing element of the image information that is transferred out by second catoptron.

Like this, the volume of scan components obviously reduces under the constant situation of light path, make the volume that the scan components of 600dpi resolution can be identical with the scan components tool of 300dpi resolution, so for paper supply formula scanner, can make the paper supply formula pedestal of the shared same specification of scan components of different resolution, and, can make high-resolution product more meet short and small frivolous demand for platform-type scanner.

Description of drawings

Fig. 1 is the arrangement plan of known scan components;

Fig. 2 is known scan components light path synoptic diagram;

Fig. 3 is the arrangement plan of paper supply formula pedestal and scan components;

Fig. 4 is the arrangement plan of the utility model scan components;

Fig. 5 is the utility model light path synoptic diagram;

Fig. 6-A, 6-B are the comparison synoptic diagram that the utility model reduces volume;

Fig. 7-A, 7-B are the comparison synoptic diagram that the utility model improves resolution.

Element and symbol description

10 scan components, 11 pedestals

12 light ray bending devices, 13 catoptrons

14 lens, 15 light sensing elements

16 catoptrons, 17 catoptrons

18 image informations, 30 scan components

31 light ray bending devices, 32 catoptrons

33 catoptrons, 41 first catoptrons

51 lens, 61 second catoptrons

71 light sensing elements, 81 pedestals

Embodiment

Shown in Fig. 4,5, wherein Fig. 4 is the arrangement plan of scan components 30, and this figure has rotated 180 degree along mounting direction, and Fig. 5 is the light path synoptic diagram.This scan components 30 comprises: one group of light ray bending device 31, one first catoptron 41, lens 51, one second catoptron 61 and light sensing element 71.Wherein this light ray bending device 31 is made up of 32,33 of two catoptrons.Catoptron 32 is configured on the pedestal 81 with catoptron 33, and two catoptrons 32,33 face one another.

This first catoptron 41 also is configured on the pedestal 81, and this first catoptron 41 is between catoptron 32 and catoptron 33.These lens 51 are configured in this pedestal 81, and these lens 51 are relative with this first catoptron 41.This second catoptron 61 is configured on this pedestal 81, and this second catoptron 61 is positioned at the rear (context herein is a benchmark with the direct of travel of image information 18) of these lens 51.This light sensing element 71 is arranged on the pedestal 81, and this light sensing element 71 is positioned on the reflection paths that this second catoptron 61 provided, and is corresponding with this second catoptron 61.

It should be noted that as shown in Figure 5 the allocation position of this light sensing element 71 can not exceed the allocation position of this light ray bending device 31.So for entire scan assembly 30, though this light sensing element 71 changes allocation position, the height of scan components 30 does not change.

During use, the image information 18 that scanning document obtained reflects in this light ray bending device 31 advances, and sends this first catoptron 41 to.The image information 18 that this first catoptron 41 receives from light ray bending device 31, and image information 18 is transferred to this lens 51 in the reflection mode.After image information that these lens 51 receive and the focusing, be transferred to second catoptron 61 at these lens 51 rears.After this second catoptron 61 receives image information 18, this light sensing element 71 is passed in these image information 18 reflections.

It should be noted that under the effect of this second catoptron 61 this image information 18 is in the light path path of 71 of these lens 51 and this light sensing elements, change the mode that turnover is advanced into by the mode of known general straight ahead.In the present embodiment, this image information 18 by this second catoptron 61 transferred 90 the degree, but scope of the present utility model be not limited in 90 the degree.For example, sometimes for the design requirement of specific light path, turning angle is become between 75 to 105 degree.

Fig. 6-A and 6-B are depicted as the comparison synoptic diagram that the utility model reduces volume.Wherein Fig. 6-A represents that the distance of 71 of these lens 51 and light sensing elements is 49mm, and first catoptron 41 to the width of light sensing element 71 is 82.16mm; Fig. 6-B is the distance of lens 51 to second catoptrons 61 when setting this second catoptron 61 at lens 51 rears, add that this second catoptron 61 still remains 49mm to the distance of light sensing element 71, and this first catoptron 41 is 65.56mm to the width of this light sensing element 71.Under the identical situation of light path, this second catoptron 61 makes image information primary event more than 18, can reach the purpose of the volume miniaturization that makes this scan components 30.

Fig. 7-A and 7-B are the comparison synoptic diagram that expression the utility model improves resolution.By shown in the figure as can be known the width of this first catoptron 41 and this light sensing element 71 be 82.16mm.Having only lens 51 among Fig. 7-A is 49mm to the distance of light sensing element 71; Among Fig. 7-B, the distance of these lens 51 to second catoptrons 61 adds the distance of this second catoptron 61 to light sensing element 71, is 71mm altogether.Obviously disposing this second catoptron 61 at the rear of these lens 51 can obviously increase total optical path and improve resolution, and does not increase the volume of scan components 30.

Scan components with 300dpi and 600dpi is an example.The fabricator can take the pedestal 81 of 300dpi, and disposes one second catoptron 61 on this pedestal 81, and this light sensing element 71 is configured in the reflected light path of this second catoptron 61.Like this, after having added this second catoptron 61 and having changed the allocation position of this light sensing element 71, the total optical path of this scan components 30 strengthens the design requirement that can satisfy 600dpi, and the volume of this scan components 30 does not increase.Contrast the situation of the scan components volume of known 600dpi greater than 300dpi scan components volume, the utility model has the effect with high-resolution scan components miniaturization really.

For paper supply formula pedestal, so the volume that 300dpi and the scan components of 600dpi have identical size is paper supply formula pedestal that can shared same specification.And for platform-type scanner, resolution is brought up to 600dpi by 300dpi, and the constant and reduced width of the height of this scan components is so can make high-resolution product more meet compact demand.

Described above is preferred embodiment of the present utility model and design drawings; preferred embodiment and design drawings only illustrate; it is not the scope that is used to limit claims of the present utility model; all interest field implementers of being contained with the customary means that is equal to or for claims content of the present utility model all do not break away from category of the present utility model and are the scope of the claimed claims of applicant.

Claims (3)

1. the scan components of a miniaturization, obtain image information with described component scans file, and receive and the processing image information that scanning document obtained, it is characterized in that, comprise: a light ray bending device, described light ray bending device is made up of two catoptrons of facing mutually at least, in order to receive the resulting image information of scanning document; One receives and reflects first catoptron of the image information that described light ray bending device transferred out; One receives the go forward side by side lens of line focusing of image information that described first catoptron transferred out; Be configured in the rear of described lens, in order to receive and to reflect one second catoptron of image information after the described lens focus; And receive and handle a light sensing element by described second image information that catoptron spreads out of.

2. miniaturization scan components as claimed in claim 1 is characterized in that: described image information after described second mirror reflects, transfer 90 the degree.

3. miniaturization scan components as claimed in claim 1, it is characterized in that described image information after described second mirror reflects, transferred 75 to 105 the degree.

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