CN208675333U - A kind of flatbed scanner - Google Patents

Abstract

The utility model discloses a kind of flatbed scanners, including tabular shell structure and the sweep mechanism being contained in shell structure, bearing panel, light source module group, sweep mechanism to be scanned within a preset range, bearing panel is located above sweep mechanism, to carry scanned object, it is with transparent panel, so that sweep mechanism scanning is located at the scanned object on transparent panel, light source module group connects sweep mechanism, for emitting light to sweep mechanism, light source module group can emit the light of multiple and different spectrum.The utility model flatbed scanner can emit the light of multiple and different spectrum by setting tabular shell structure, form a cheap, easy to carry, easy to operate multispectral scanner.

Description

A kind of flatbed scanner

Technical field

The utility model relates to optical scanner field, especially a kind of flatbed scanner.

Background technique

Spectrum (spectrum) is polychromatic light after dispersion system (such as prism, grating) light splitting, the monochrome opened by dispersion The pattern that light is arranged successively by wavelength (or frequency) size.In addition to (the wavelength covering 390 to 770 of the visible visible spectrum of human eye Nanometer), spectrum further includes the longer infrared ray of wavelength and shorter ultraviolet spectra.

It is multispectral by multiband detector detection target surface brightness and spectral information, wave-length coverage compares visible light Greatly, wave band up to several to dozens of, such as ultraviolet (UV), infrared (IR), microwave etc..

Multi-optical spectrum imaging technology mainly has differences for principle, by mesh the absorption of different wave length light with object Intensity variation of the object in one group of monochrome discrete wavelength is marked to realize the application demands such as detection, discrimination, compared to using single Visible light have higher identification, antifalsification, safety and reliability.

But as shown in fig. 6, multispectral imaging equipment price is expensive at present, image taking speed is slow, and operation difficulty is big, is suitble to experiment Room environmental uses.

Utility model content

The utility model provides a kind of cheap, easy to carry, easy to operate flatbed scanner.

To achieve the above object, the technical solution of the utility model is as follows:

A kind of flatbed scanner including tabular shell structure and the sweep mechanism being contained in shell structure, is held Section plate, light source module group, to be scanned within a preset range, bearing panel is located above sweep mechanism sweep mechanism, uses To carry scanned object, with transparent panel, so that sweep mechanism scanning is located at the scanned object on transparent panel, light Source mould group connects sweep mechanism, and for emitting light to sweep mechanism, light source module group can emit the light of multiple and different spectrum.

In one embodiment, tabular shell structure framework, upper cover, bottom plate, upper cover are articulated in framework one end, to It is covered on scanned object, exterior light is prevented to enter scanning area；Bottom plate is fixed on framework bottom below framework, to protect Protect internal element.

In one embodiment, light source module group includes multiple transmitting light sources, emits the light of different spectrum respectively.

In one embodiment, tabular shell structure framework, upper cover, bottom plate, bottom plate are fixed on frame below framework Body bottom, light source module group are fixed between framework bottom and bottom plate.

In one embodiment, sweep mechanism includes striplight, receiver, control panel and movement mechanism, band-like Luminaire is used to receive the spectral emissions signal of light source module group, and forms band-like light and emit to scanned object, and receiver is used In the reflection light of reception scanned object, and electric signal is converted optical signals to, is transferred to control panel, movement mechanism is for controlling Striplight processed and receiver move, to scan the full scope of scanned object.

In one embodiment, movement mechanism includes motor, driving cog wheel and rack, motor, transmission gear with it is band-like Luminaire, receiver, which are fixed on together on a crossbeam, forms probe, and motor is connect with transmission gear, rack gear be it is longitudinally disposed, It is engaged with gear, the rotary motion of gear is converted into the straight reciprocating motion along rack gear, moves probe along longitudinal direction, to sweep Retouch the full scope of scanned object.

In one embodiment, scanner has control system, and control system includes processing module and light source transmitting Module, light source receiving module, processing module are used to control the operation of other each modules, and light source emitting module connects light source module group, For driving light source module group to generate spectral signal, light source receiving module connects receiver, the spectrum letter for receiving receiver Number electric signal transmission is converted into processing module.

In one embodiment, control system further includes communication module, for using wired or wireless way with it is upper Machine carries out data transmission, and power management module connects power supply, for being managed to power supply.

In one embodiment, control system further includes motor drive module, and motor drive module connects motor, control Motor forward or reverse, makes probe along predetermined manner longitudinal movement.

The beneficial effects of the utility model are: the utility model flatbed scanner passes through setting tabular shell structure, And the light of multiple and different spectrum can be emitted, form a cheap, easy to carry, easy to operate multispectral scanner.

Detailed description of the invention

Fig. 1 is the stereogram exploded view of the utility model embodiment flatbed scanner.

Fig. 2 is that flatbed scanner shown in Fig. 1 combines top view.

Fig. 3 is that flatbed scanner shown in Fig. 1 removes the top view after upper cover and bearing panel.

Fig. 4 is that flatbed scanner shown in Fig. 1 removes the bottom view after bottom plate.

Fig. 5 is the block diagram of the utility model embodiment flatbed scanner control system.

Fig. 6 is the schematic diagram of existing multispectral imaging equipment.

Specific embodiment

With reference to the accompanying drawing and example, the utility model is described further.

In the present embodiment, as shown in Figures 1 to 4, flatbed scanner include framework 1, sweep mechanism 2, bearing panel 3, Upper cover 4, light source module group 5, bottom plate 6.The horizontal profile ratio A4 paper of the present embodiment flatbed scanner is slightly larger, is mainly used for scanning and is less than Or the sheet article (such as paper document) equal to A4 paper size.It is of course also possible to as needed, increased or decrease flat bed scanning The size of instrument, for scanning the article for being less than or equal to A1 to A5 paper size or other sizes.

1 overall size of framework is close with scanner, more slightly larger than A4 paper, including bottom 11 and by 11 outer rim of bottom Upwardly extend four side walls 13 to be formed.Bottom 11 is surrounded by multiple pillars 15 for being used to support main circuit board with other parts, Middle part raises upward, and upper surface is covered with light partition (not shown), and aluminium foil material can be used in light partition, closes for building Suitable lighting environment.

Sweep mechanism 2 is scanned to (the present embodiment is A4 paper range) within a preset range, is fixed in framework, Including probe 21, rack gear 23, control panel 25.Probe 21 is the main component of flatbed scanner, to be laterally arranged, including Crossbeam (not indicating) and the striplight (not shown) being fixed on crossbeam, receiver (not shown), motor (not shown), Transmission gear (not shown).Striplight is transversely distributed and towards upward, for receiving 5 spectral emissions of light source module group letter Number, and form band-like light and emit to scanned object.Receiver and striplight are distributed along crossbeam side by side, for receiving quilt The reflection light of object is scanned, and converts optical signals to electric signal, is transferred to control panel, electric machine structure is for driving driving cog Wheel rotation, controls beam structure horizontal movement along longitudinal direction.

Rack gear 23 be it is longitudinally disposed, engaged with transmission gear, it is past that the rotary motion of gear is converted to the straight line along rack gear Multiple movement, moves probe 21 along longitudinal direction, to scan the full scope of scanned object (such as document of A4 paper size).

Multiple electronic component (not shown)s such as chip of the control panel 25 including circuit board (not shown), on circuit board, And the protection board 251 positioned at circuit board, it is connected with elements such as motor, light source module group 5, receiver, communication devices, is used for Motor movement is controlled, the spectral signal that receiver obtains is converted into electric signal, image is ultimately formed and uploads to host computer and (do not draw Out), spectrum picture and subsequent analysis are checked for user.Control panel 25 can also have signal processing function, and receiver is transmitted The electric signal come in carries out brief analysis processing.Certainly, analysis processing work is mainly come by host computer, such as computer, mobile phone At this moment processing needs to initially set up communication connection to ensure that data are transmitted.Communication mode can be USB, and wired ethernet etc. is wired Transmission mode is also possible to the wireless transmission methods such as bluetooth, WIFI.

Bearing panel 3 is fixed in framework 1 and is located at 2 top of sweep mechanism, to carry scanned object.Bearing panel 3 include frame shape fixed plate 31 and the transparent panel 33 for being fixed on 31 middle part of fixed plate.Transparent panel 33 is A4 paper size, to The light for allowing lower section striplight to project is by reaching scanned object, and the light for allowing scanned object to reflect is through directive Receiver.31 one end of fixed plate is equipped with a key switch 35, for opening, the power supply of disconnected scanner.

Upper cover 4 is articulated in 1 one end of framework, to be covered on scanned object, prevents exterior light from entering scanning area, seeks Make metastable light environment.

Light source module group 5 is fixed between 1 bottom 11 of framework and bottom plate 6, striplight is connected, for emitting light to band Shape luminaire.In the present embodiment, light source module group 5 includes 6 transmitting light sources 51, emits the light of different spectrum respectively.Other In embodiment, light source module group can also only set a transmitting light source, and the light of different spectrum is emitted by filter element.Or it sets Multiple transmitting light sources, part emit light source and emit monochromatic spectrum, and part emits light source and emits different spectrum by filter element Light.

Bottom plate 6 is fixed on 1 bottom of framework below framework 1, to protect internal element.Bottom plate lower part is single equipped with power supply Member, the power demands for scanner.

Above-mentioned framework 1, upper cover 4, bottom plate 6 constitute tabular shell structure, for accommodating above-mentioned sweep mechanism 2, loading end The elements such as plate 3, light source module group 5.

As shown in figure 5, the control system of scanner include processing module and light source emitting module, light source receiving module, Communication module, power management module, key trigger module, motor drive module.These modules are all disposed on control panel, are passed through Conducting wire is connected with related hardware.

Processing module is the brain of control system, for controlling the operation of other each modules.Processing module can also be to original Beginning scan data is briefly handled (such as denoising, smooth, spectrum fusion), these final data can be transferred to upper Machine.

Light source emitting module connects light source module group, for driving light source module group to generate spectral signal.Because the present embodiment has 6 The light source of a difference spectrum, so processing module can successively issue scan instruction and (it is automatic control 6 spectrum respectively when scanning Successively scan), can also according to the control signal of host computer, select wherein certain it is several give light source emitting module, sent out by light source Penetrate module control light source module group.

Light source receiving module connects receiver, and the spectral signal for receiving receiver is converted into electric signal transmission to place Manage module.

Communication module connection communication device, for being carried out data transmission using wired or wireless way with host computer.

Power management module connects power supply, for being managed to power supply, such as obtains remaining capacity information, avoids overcharging Etc..

Key trigger module connects key switch, and for controlling processing module by key switch, starting or closing are swept Retouch operation.

Motor drive module connects motor, controls motor forward or reverse, makes probe along predetermined manner longitudinal movement. A kind of general spectrum round trip, processing module scanning speed can also be controlled by controlling the revolving speed of motor and scanning walks It is long.

Typical operating process is illustrated below.User presses switch key, and host computer opens control software, even It is connected to scanner, selects " starting to scan " in upper computer software, the control module of scanner receives scanning signal at this time, leads to It crosses light source emitting module order light source module group and emits a kind of default spectrum, while receiver reception is reflected back from scanned object Spectral signal, send processing module to, processing module carries out transferring data to host computer after centainly handling；Processing module is logical Motor drive module is crossed, control motor rotation completes a kind of sweeping for spectrum to drive probe to make a back and forth movement along rack gear It retouches, then switches other spectrum and be scanned.

Compared with existing multispectral imaging equipment, the present embodiment flatbed scanner is had the advantages that

1, structure is simple, multiple spectrum cameras is integrated in a scanner, other elements are equal in addition to light source module group It can share, relatively existing multiple spectrum cameras are separately connected the structure of light source module group, and structure is significantly simple；

2, cheap, opposite existing equipment, structure is few, and multiple element can use the universal element of scanner Part；

3, small in size, it is easy to carry, can carry it is outgoing be scanned, being different from existing multispectral imaging equipment can only be Laboratory implementation, therefore larger range of application can be obtained.

Claims (9)

1. a kind of flatbed scanner, which is characterized in that including tabular shell structure and be contained in sweeping in shell structure Mechanism, bearing panel, light source module group are retouched, for sweep mechanism to be scanned within a preset range, bearing panel is located at scanning machine Above structure, to carry scanned object, with transparent panel, so that sweep mechanism scanning is located at being swept on transparent panel Object is retouched, light source module group connects sweep mechanism, and for emitting light to sweep mechanism, light source module group can emit multiple and different spectrum Light.

2. flatbed scanner according to claim 1, which is characterized in that tabular shell structure framework, upper cover, bottom Plate, upper cover are articulated in framework one end, to be covered on scanned object, exterior light are prevented to enter scanning area；Bottom plate is from frame It is fixed on framework bottom below body, to protect internal element.

3. flatbed scanner according to claim 1, which is characterized in that light source module group includes multiple transmitting light sources, point Do not emit the light of different spectrum.

4. flatbed scanner according to claim 3, which is characterized in that tabular shell structure framework, upper cover, bottom Plate, bottom plate are fixed on framework bottom below framework, and light source module group is fixed between framework bottom and bottom plate.

5. flatbed scanner according to claim 1, which is characterized in that sweep mechanism includes striplight, receives Device, control panel and movement mechanism, striplight are used to receive the spectral emissions signal of light source module group, and formed band-like light to Scanned object transmitting, receiver are used to receive the reflection light of scanned object, and convert optical signals to electric signal, transmit To control panel, movement mechanism is moved for controlling striplight and receiver, to scan the full scope of scanned object.

6. flatbed scanner according to claim 5, which is characterized in that movement mechanism include motor, transmission gear with Rack gear, motor, transmission gear, which are fixed on a crossbeam together with striplight, receiver, forms probe, motor and transmission Gear connection, rack gear be it is longitudinally disposed, engage with gear, by the rotary motion of gear be converted to along rack gear linear reciprocation transport It is dynamic, move probe along longitudinal direction, to scan the full scope of scanned object.

7. flatbed scanner according to claim 6, which is characterized in that scanner has control system, control system Including processing module and light source emitting module, light source receiving module, processing module is used to control the operation of other each modules, light Source transmitting module connects light source module group, and for driving light source module group to generate spectral signal, light source receiving module connects receiver, uses Electric signal transmission is converted into processing module in the spectral signal for receiving receiver.

8. flatbed scanner according to claim 7, which is characterized in that control system further includes communication module, is used for Carried out data transmission using wired or wireless way and host computer, power management module connects power supply, for carrying out pipe to power supply Reason.

9. flatbed scanner according to claim 7, which is characterized in that control system further includes motor drive module, Motor drive module connects motor, controls motor forward or reverse, makes probe along predetermined manner longitudinal movement.