CN206100181U - Image reader - Google Patents

Abstract

The utility model provides an image reader, include: image signal receiving element, the luminescence unit, luminescence unit and image signal receiving element set up relatively, and the luminescence unit is used for to image signal receiving element transmission beam. The utility model provides a contact image sensing device among the prior art problem poor to the size measurement accuracy of determinand.

Description

Image read-out

Technical field

This utility model is related to field of image sensors, in particular to a kind of image read-out.

Background technology

Existing contact type image sensing device generally carries out image scanning using reflected light or transmitted light to determinand. Fig. 1 shows a kind of structure of existing contact type image sensing device, wherein, 1 ' is luminescence unit, and 2 ' connect for picture signal By unit, luminescence unit 1 ' is linear light sorurce or array point source.

During image scanning, between the picture signal receiving unit 2 ' of determinand 3 and contact type image sensing device Distance be usually required to be kept between 0～20mm, so just can guarantee that determinand 3 be located at picture signal receiving unit 2 ' it is saturating Near mirror foci position, so as to measuring the size of determinand 3 and reading the image information of sheet determinand.

But when the range image signal receiving unit 2 ' of determinand 3 farther out when, contact type image sensing device just cannot be accurate The size of determinand really is measured, so as to reduce measurement accuracy of the contact type image sensing device to determinand 3.

Specifically, as shown in figure 1, any one point of the surface of luminescence unit 1 ' can regard a point source as, with point As a example by light source X10, X20 and X30, although determinand 3 can block a part of light beam that point source X20 sends, this segment beam is made The place of picture signal receiving unit 2 ' cannot be reached, but because the light that point source sends is veiling glare, can be dissipated to all directions, Therefore, the light beam that point source X10 and point source X30 send can also reach the place of picture signal receiving unit 2 ', so that luminous single The light beam that unit 1 ' sends can be reached at any position of picture signal receiving unit 2 ', so as to cause contact type image sensing dress Putting cannot judge the border of determinand 3 by measuring up to the light beam at the place of picture signal receiving unit 2 ', also just cannot survey Measure the overall dimensions of determinand 3.

Moreover, the scanning result of existing contact type image sensing device is usually two-dimension picture, when determinand 3 not When being flaky medium and having larger thickness, existing contact type image sensing device cannot accurately measure determinand 3 thickness, therefore the monnolithic case three-dimensional dimension of determinand 3 just cannot be obtained, so that existing contact type image sensing dress Put with certain use limitation.

Utility model content

Main purpose of the present utility model is to provide a kind of image read-out, to solve contact of the prior art Problem of the image sensing device to the dimensional measurement accuracy difference of determinand.

To achieve these goals, this utility model provides a kind of image read-out, including：Picture signal receives single Unit；Luminescence unit, luminescence unit and picture signal receiving unit are oppositely arranged, and luminescence unit is used for picture signal receiving unit Emitting parallel light beam.

Further, luminescence unit and picture signal receiving unit be arranged in parallel.

Further, luminescence unit includes：Convex lenss；Ray structure, ray structure is oppositely arranged with convex lenss, and luminous Structure is located at the focal point of convex lenss.

Further, luminescence unit includes the first framework, and the first framework has hatch frame, and convex lenss are arranged on the first frame In vivo and at hatch frame, ray structure is arranged on the one end relative with hatch frame in the first framework.

Further, for multiple, multiple convex lens set gradually convex lenss along same straight line, ray structure be it is multiple, it is many Individual ray structure is corresponded with multiple convex lens and arranged.

Further, multiple convex lens are integrally formed.

Further, the first framework includes：Base plate, ray structure is arranged on base plate；Border structure, border structure and bottom Plate connects, and base plate and border structure surround biography light space jointly, and hatch frame is located at the one end away from base plate for passing light space.

Further, luminescence unit also includes：Pcb board, pcb board is movably disposed on base plate, and ray structure is located at The side away from base plate of pcb board；First position micromatic setting, first position micromatic setting and pcb board drive connection are adjusting The position of ray structure.

Further, luminescence unit also includes second position micromatic setting, and border structure has installs raised, and convex lenss lead to Cross second position micromatic setting and be arranged on installation high spot, and ray structure relative to the position-adjustable for installing projection.

Further, luminescence unit also includes the first light-passing board, and the first light-passing board is arranged at hatch frame and is located at convex The side away from ray structure of lens.

Further, luminescence unit also includes dividing plate, and dividing plate is multiple, and multiple dividing plates are arranged in biography light space to pass Light space is separated into multiple biography light subspaces separately, and a corresponding convex lenss and a ray structure are passed positioned at one In light subspace.

Further, luminescence unit includes：Reflection shield, the side that reflection shield has cavity, cavity has opening；Light-emitting junction Structure, ray structure is arranged at the geometric center of opening.

Further, reflection shield includes light-reflecting portion and the light absorption unit being connected, and light-reflecting portion and light absorption unit surround cavity jointly, Opening is formed in one end away from light-reflecting portion of light absorption unit.

Further, light absorption unit includes the multiple extinction plates being sequentially connected with, and the surface towards cavity of extinction plate is extinction Plane, the surface towards cavity of light-reflecting portion is reflective surface, and extinction plane is seamlessly transitted with reflective surface.

Further, opening is in tetragon, and light absorption unit includes four extinction plates, and two adjacent extinction plates are vertically arranged.

Further, extinction plane is in black, and reflective surface is reflective mirror.

Further, reflective mirror is the part surface or the part table of ellipsoid of paraboloidal part surface or sphere Face.

Further, for multiple, multiple reflection shields set gradually along a straight line reflection shield, ray structure be it is multiple, it is multiple Ray structure is corresponded with multiple reflection shields and arranged.

Further, picture signal receiving unit includes second framework and the second printing opacity being successively set in second framework Plate, sensitive chip and sensor base plate, wherein, sensitive chip is arranged on sensor base plate, and the second light-passing board is relative to photosensitive The side that chip is located near luminescence unit.

Further, picture signal receiving unit also includes filter coating, and filter coating is arranged in second framework and positioned at the Between two light-passing boards and sensitive chip.

Further, picture signal receiving unit also includes collecting lenses, and collecting lenses are arranged in second framework and position Between the second light-passing board and sensitive chip.

Further, picture signal receiving unit also includes auxiliary light emission structure, and auxiliary light emission structure setting is saturating in optically focused Between mirror and the second light-passing board.

Further, luminescence unit and picture signal receiving unit are two, and two luminescence units and two images are believed Number receiving unit surrounds measurement space jointly, and two luminescence units are disposed adjacent, and two picture signal receiving units are adjacent to be set Put, two picture signal receiving units are vertically arranged.

Further, picture signal receiving unit is two, in two picture signal receiving units and luminous list Unit is parallel and is oppositely arranged, and another in two picture signal receiving units is vertically arranged with luminescence unit, and two images Signal receiving unit and luminescence unit surround measurement space jointly.

Using the technical solution of the utility model, by arranging the luminescence unit relative with picture signal receiving unit, send out Light unit can be to picture signal receiving unit emitting parallel light beam.So, collimated light beam is run into after determinand, a part of parallel Light beam is subject to the backstop of determinand and cannot reach at picture signal receiving unit, so as to pass through detection by determinand edge Jing The collimated light beam for crossing determinand is just capable of the size of accurately measure determinand, and the measurement result of image sensing device will not be received To the impact of distance between determinand and picture signal receiving unit, it is ensured that the measurement to determinand of image sensing device is tied The accuracy of fruit.

Description of the drawings

The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality New schematic description and description is used to explain this utility model, does not constitute to improper restriction of the present utility model. In the accompanying drawings：

Fig. 1 shows the operation principle schematic diagram of image read-out of the prior art；

Fig. 2 shows a kind of vertical view of the luminescence unit of the alternative embodiment according to image sensing device of the present utility model Cross-sectional schematic；

Fig. 3 shows the left view cross-sectional schematic of the luminescence unit in Fig. 2；

Fig. 4 shows the structural representation of the multiple convex lens of the luminescence unit in Fig. 2；

Fig. 5 shows the knot of the luminescence unit of another kind of alternative embodiment according to image sensing device of the present utility model Structure schematic diagram；

Fig. 6 shows the main view cross-sectional schematic of the luminescence unit in Fig. 5；

Fig. 7 shows the right view of the luminescence unit in Fig. 6；

Fig. 8 shows the cross-sectional schematic of the luminescence unit in Fig. 7；

Fig. 9 show another kind of alternative embodiment according to image sensing device of the present utility model with multiple reflective The structural representation of the luminescence unit of cover；

Figure 10 shows and illustrated according to a kind of main view section view of image sensing device of alternative embodiment of the present utility model Figure；

Figure 11 shows that the vertical view of the image sensing device in Figure 10 shows that section view is intended to；

Figure 12 shows and shown according to the main view section view of the image sensing device of another kind of alternative embodiment of the present utility model It is intended to；

Figure 13 shows the vertical view cross-sectional schematic of the image sensing device in Figure 12；

Figure 14 shows and shown according to the main view section view of the image sensing device of another kind of alternative embodiment of the present utility model It is intended to；

Figure 15 shows the vertical view cross-sectional schematic of the image sensing device in Figure 14；

Figure 16 shows and shown according to the main view section view of the image sensing device of another kind of alternative embodiment of the present utility model It is intended to；

Figure 17 shows and shown according to the vertical view section view of the image sensing device of another kind of alternative embodiment of the present utility model It is intended to；

Figure 18 shows and shown according to the vertical view section view of the image sensing device of another kind of alternative embodiment of the present utility model It is intended to；

Figure 19 shows adjacent with the luminescence unit of the image sensing device in a Figure 18 picture signal receiving unit And the structural representation of determinand.

Wherein, above-mentioned accompanying drawing includes the following drawings labelling：

3rd, determinand；10th, picture signal receiving unit；11st, measurement space；12nd, second framework；13rd, the second light-passing board； 14th, sensitive chip；15th, sensor base plate；16th, filter coating；17th, collecting lenses；18th, auxiliary light emission structure；29th, adapter； 110th, after-treatment system；20th, luminescence unit；21st, the first framework；211st, hatch frame；212nd, base plate；213rd, border structure； 214th, light space is passed；215th, install raised；22nd, convex lenss；23rd, ray structure；24th, pcb board；25th, first position micromatic setting； 26th, second position micromatic setting；27th, the first light-passing board；28th, reflection shield；281st, cavity；282nd, light-reflecting portion；283rd, light absorption unit； 284th, extinction plate.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole Embodiment.It is below illustrative to the description only actually of at least one exemplary embodiment, never as to this practicality New and its application or any restriction for using.Based on the embodiment in this utility model, those of ordinary skill in the art are not having Have and make the every other embodiment obtained under the premise of creative work, belong to the scope of this utility model protection.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.

Unless specifically stated otherwise, the part for otherwise illustrating in these embodiments and positioned opposite, the digital table of step Scope of the present utility model is not limited up to formula and numerical value.Simultaneously, it should be appreciated that each shown in accompanying drawing for the ease of description The size of individual part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant Art, method and apparatus may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered to award A part for power description.In all examples shown here and discussion, any occurrence should be construed as merely example Property, not as restriction.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：It is similar Label and letter similar terms is represented in following accompanying drawing, therefore, once be defined in a certain Xiang Yi accompanying drawing, then with It need not be further discussed in accompanying drawing afterwards.

In description of the present utility model, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " laterally, Vertically, vertically the orientation or position relationship indicated by, level " and " top, bottom " etc. is normally based on orientation shown in the drawings or position Relation is put, description this utility model is for only for ease of and is simplified description, in the case where contrary explanation is not made, these nouns of locality Do not indicate that and imply that the device or element of indication there must be specific orientation or with specific azimuth configuration and operation, because This is it is not intended that the restriction to this utility model protection domain；The noun of locality " inside and outside " is referred to relative to each part wheel of itself Wide is inside and outside.

For the ease of description, space relative terms can be used here, such as " ... on ", " ... top ", " in ... upper surface ", " above " etc., for describing such as a device or feature shown in the figure and other devices or spy The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices To be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the relative description in space used herein above.

Furthermore, it is necessary to explanation, limits parts, it is only for be easy to using the word such as " first ", " second " Corresponding parts are distinguished, such as without Stated otherwise, above-mentioned word does not have particular meaning, therefore it is not intended that to this The restriction of utility model protection scope.

In order to solve contact type image sensing device of the prior art asking to the dimensional measurement accuracy of determinand difference Topic, this utility model provides a kind of image read-out.

As shown in Fig. 2 to 19, image read-out, including picture signal receiving unit 10 and luminescence unit 20；It is luminous single Unit 20 and picture signal receiving unit 10 are oppositely arranged, and luminescence unit 20 is used for the emitting parallel light of picture signal receiving unit 10 Beam.

By arranging the luminescence unit 20 relative with picture signal receiving unit 10, luminescence unit 20 can be to picture signal The emitting parallel light beam of receiving unit 10.So, collimated light beam is run into after determinand, and a part of collimated light beam is stopped by determinand Gear and cannot reach at picture signal receiving unit 10, so as to pass through detect by determinand edge through determinand directional light Beam is just capable of the size of accurately measure determinand, and the measurement result of image sensing device will not be subject to determinand to believe with image The impact of distance between number receiving unit 10, it is ensured that the accuracy of the measurement result to determinand of image sensing device.

It should be noted that luminescence unit 20 and picture signal receiving unit 10 be arranged in parallel.In such manner, it is possible to believe image Number receiving unit 10 stably receives the collimated light beam that luminescence unit 20 is sent, it is ensured that image sensing device is to determinand 3 are accurately measured.

In alternative embodiment as shown in Figures 2 to 4, luminescence unit 20 includes convex lenss 22 and ray structure 23；It is luminous Structure 23 is oppositely arranged with convex lenss 22, and ray structure 23 is located at the focal point of convex lenss 22.When ray structure 23 is in convex During the focal position of lens 22, the light that ray structure 23 sends can be refracted into directional light through convex lenss 22, so that luminous Unit 20 becomes the linear light sorurce with good directivity.

As shown in Figures 2 and 3, luminescence unit 20 includes the first framework 21, and the first framework 21 has hatch frame 211, convex Lens 22 are arranged in the first framework 21 and at hatch frame 211, ray structure 23 be arranged in the first framework 21 with The relative one end of hatch frame 211.The light beam that so ray structure 23 sends is reflected at convex lenss 22, by convex lenss 22 Light beam becomes collimated light beam.

In alternative embodiment as shown in Figure 2, due to image sensing device scanning process be linear scanning, therefore with figure As the corresponding ray structure 23 of sensing device is linear light sorurce.When the size of determinand 3 is larger, if using a convex lenss 22 size can be accordingly very big, in order to avoid cause due to arranging a convex lenss 22 physical dimension of luminescence unit 20 compared with The drawbacks of big, convex lenss 22 are multiple, and multiple convex lens 22 set gradually along same straight line, ray structure 23 be it is multiple, it is multiple Ray structure 23 is corresponded with multiple convex lens 22 and arranged.This way it is ensured that luminescence unit 20 can provide enough light Beam, so as to ensure that image sensing device carries out effectively, accurately measuring to the size of determinand.

As shown in figure 4, for the ease of being processed to multiple convex lens 22 and installing and making through multiple convex lens 22 Light beam is continuous, and ensures there is the very high depth of parallelism by the light beam of multiple convex lens 22, and multiple convex lens 22 are integrally formed.

It should be noted that the axis of each convex lenss 22 is parallel.

Alternatively, multiple convex lens 22 are removably spliced, and each convex lens 22 in the plane vertical with its axis Interior projection is in tetragon.So, it is easy to be connected between adjacent two convex lenss 22, adjacent two convex lenss 22 The surface roughness of the plane for fitting is identical, continuous through the light beam of multiple convex lens 22 so as to ensure that.

Still optionally further, the projection in the plane vertical with its axis of each convex lens 22 is square or square Shape.

As shown in Figures 2 and 3, in order to ensure the structural stability of the first framework 21, the first framework 21 includes the He of base plate 212 Border structure 213, ray structure 23 is arranged on base plate 212, and border structure 213 is connected with base plate 212, and base plate 212 and side Mount structure 213 surrounds biography light space 214 jointly, and hatch frame 211 is located at the one end away from base plate 212 for passing light space 214.

As shown in Figures 2 and 3, luminescence unit 20 also includes pcb board 24 and first position micromatic setting 25, and pcb board 24 can It is movably arranged on base plate 212, ray structure 23 is located at the side away from base plate 212 of pcb board 24, first position fine setting dress 25 are put with the drive connection of pcb board 24 to adjust the position of ray structure 23.So, ray structure 23 is stably connected with pcb board, Position that can be effectively to ray structure 23 relative to convex lenss 22 by first position micromatic setting 25 is adjusted, so as to Ensure for ray structure 23 to be adjusted to the focal point of convex lenss 22, and then make the light beam that luminescence unit 20 sends have the depth of parallelism high The characteristics of.

As shown in Figures 2 and 3, luminescence unit 20 also includes second position micromatic setting 26, and border structure 213 has to be installed Raised 215, convex lenss 22 are arranged on by second position micromatic setting 26 and are installed at raised 215, and ray structure 23 relative to Raised 215 position-adjustable is installed.Raised 215 are installed because border structure 213 has, convex lenss 22 are micro- by the second position Device 26 is adjusted to be arranged at installation raised 215, it is ensured that the connective stability of convex lenss 22 and border structure 213, it is to avoid convex Lens 22 get loose phenomenon.Moreover, second position micromatic setting 26 can be effectively to convex lenss 22 relative to luminous The position of structure 23 is adjusted, and makes convex lenss 22 obtain the dead in line of axis and ray structure, so as to ensure ray structure 23 Positioned at the focal point of convex lenss 22, and then the characteristics of make the light beam that luminescence unit 20 sends have the depth of parallelism high.

It can be seen that, by using cooperatively for first position micromatic setting 25 and second position micromatic setting 26, can be accurately Regulation makes the relative position of ray structure 23 and convex lenss 22, make the light beam that luminescence unit 20 sends with sensing well Property.

As shown in Figures 2 and 3, luminescence unit 20 also includes the first light-passing board 27, and the first light-passing board 27 is arranged on opening knot At structure 211 and positioned at the side away from ray structure 23 of convex lenss 22.So, can not only ensure what ray structure 23 sent Light beam, as the light beam that sends of luminescence unit 20, but also is avoided that dust is entered and passes light space through the first light-passing board 27 214 and affect optical device service precision, improve the certainty of measurement of image sensing device.

It should be noted that because the focal length of convex lenss 22 is changed with the change of lambda1-wavelength, therefore in order to The more preferable light beam of directivity is obtained, ray structure 23 is monochromatic point source.Alternatively, ray structure 23 sends light visible ray or not Visible ray.The light that still optionally further ray structure 23 sends is laser.

In an alternative embodiment (not shown) of the present utility model, luminescence unit 20 also includes dividing plate, and dividing plate is many Individual, multiple dividing plates are arranged on to pass in light space 214 and are separated into multiple biography light subspaces separately, phase will pass light space 214 A corresponding convex lenss 22 and a ray structure 23 are located at one and pass in light subspace.So, it is to avoid multiple light-emitting junctions Infect mutually between the light beam that structure 23 sends, make the light beam that each ray structure 23 sends to pass through corresponding thereto one is convex Lens 22 are reflected, so as to the entirety that ensure that the light beam that luminescence unit 20 sends has the very high depth of parallelism.

Alternatively, convex lenss 22 are Fresnel Lenses.

In alternative embodiment as shown in Figures 5 to 9, luminescence unit 20 includes reflection shield 28 and ray structure 23, reflective Cover 28 has cavity 281, and the side of cavity 281 has opening, and ray structure 23 is arranged at the geometric center of opening.So, The light beam that ray structure 23 sends can be reflected into collimated light beam by reflection shield 28, so that luminescence unit 20 can be passed for image Induction device provides collimated light beam.

As shown in Figures 5 to 9, reflection shield 28 includes light-reflecting portion 282 and the light absorption unit 283 being connected, light-reflecting portion 282 and suction Light portion 283 surrounds cavity 281 jointly, and opening is formed in one end away from light-reflecting portion 282 of light absorption unit 283.So, light-reflecting portion Ray structure 23 effectively can be reflected to form directional light and to outside cavity 281 by 282 to the veiling glare that the side of cavity 281 sends Launch, so that luminescence unit 20 can provide collimated light beam for image sensing device.Light absorption unit 283 can be absorbed up to suction The light for being not parallel to reflection shield 28 at light portion 283, so as to further ensure the reliability of the directional light that reflection shield 28 sends Property.

Alternatively, light-reflecting portion 282 is concave mirror, and ray structure 23 is located at the focal position of concave mirror.So, by recessed Face mirror carries out reflecting to form collimated light beam to the light beam that ray structure 23 sends.

It should be noted that luminescence unit 20 also includes dark slide, dark slide is positioned at ray structure 23 away from cavity 281 Side, part beyond from ray structure 23 to cavity 281 can be sheltered from by dark slide and launch veiling glare, which ensures that The reliability of the collimated light beam that luminescence unit 20 sends, improves the directivity of the collimated light beam that luminescence unit 20 sends.Not only Thus, dark slide also has the effect of fixed ray structure 23.

Alternatively, dark slide is pcb board.

It should be noted that ray structure 23 is located at the shortcoming at dark slide being, the dark slide backstop axle of light-reflecting portion 282 The directional light reflected at line, the central area of the emergent light of such light-reflecting portion 282 can be formed causes shade, but this does not affect Image sensing device of the present utility model uses reliability, because image sensing device is linear scanning, it only needs to luminous single Unit 20 provides width small part linear light beam.

As shown in Fig. 5, Fig. 7 and Fig. 8, light absorption unit 283 includes the multiple extinction plates 284 being sequentially connected with, the court of extinction plate 284 Be extinction plane to the surface of cavity 281, the surface towards cavity 281 of light-reflecting portion 282 is reflective surface, extinction plane with it is anti- Light curved surface is seamlessly transitted.So, reflective surface is conducive to for the veiling glare that ray structure 23 sends being reflected into directional light, extinction plate 284 can effectively absorb veiling glare.

It should be noted that the thickness m of extinction plate 284 is less, the company of the light beam at picture signal receiving unit 10 is reached Continuous property is better.

As shown in Figures 5 to 9, opening is in tetragon, and light absorption unit 283 includes four extinction plates 284, two adjacent extinctions Plate 284 is vertically arranged.So, when multiple reflection shields 28 splice, splice can the suitability of adjacent two reflection shield 28, carry Suitability between high multiple reflection shields 28.

As shown in Figures 5 to 9, extinction facial planes darkly color, reflective surface is reflective mirror.So, it is more beneficial for extinction The absorption of the veiling glare of the 283 pairs of axis for being not parallel to reflection shield 28 in portion.Certainly, extinction plane can also be in extinction plate 284 The surface towards cavity 281 on coat light absorbent surface.

Alternatively, reflective mirror is the part surface or the part surface of ellipsoid of paraboloidal part surface or sphere. So, light-reflecting portion 282 is improve by veiling glare reliability of the reflection in collimated light beam.

As shown in figure 9, reflection shield 28 is multiple, multiple reflection shields 28 set gradually along a straight line, and ray structure 23 is many Individual, multiple ray structures 23 are corresponded with multiple reflection shields 28 and arranged.Ensure that luminescence unit 20 can be provided enough Light beam, so as to ensure that image sensing device carries out effectively, accurately measuring to the size of determinand.

As shown in Figure 10 to 19, picture signal receiving unit 10 includes second framework 12 and is successively set on second framework 12 Interior the second light-passing board 13, sensitive chip 14 and sensor base plate 15, wherein, sensitive chip 14 is arranged on sensor base plate 15 On, the side that the second light-passing board 13 is located relative to sensitive chip 14 near luminescence unit 20.It should be noted that sensitive chip 14 is light sensitive integrated devices, and sensor base plate 15 is used to carry the linear light sensitive integrated devices of arrangement.

As shown in Figure 10 and Figure 11, picture signal receiving unit 10 also includes collecting lenses 17, and collecting lenses 17 are arranged on In second framework 12 and positioned between the second light-passing board 13 and sensitive chip 14.So, when the directional light that luminescence unit 20 sends Beam reaches sensitive chip 14, and further convergence effect is played to collimated light beam by arranging collecting lenses 17, parallel so as to improve The depth of parallelism and directivity of light beam, and then improve the degree of accuracy of picture signal receiving unit 10.

As shown in Figure 12 and Figure 13, the collimated light beam itself for being sent due to luminescence unit 20 has the very high depth of parallelism and very Good directivity, so as in this embodiment, eliminate collecting lenses 17 in picture signal receiving unit 10, still ensure that Image sensing device has very reliably scanning survey result.Collecting lenses in by eliminating picture signal receiving unit 10 17, cost has been saved, the assembly difficulty of picture signal receiving unit 10 is reduced, and collecting lenses 17 are also eliminated to light Refraction loss, improve reach sensitive chip 14 at light brightness, define at the position for eliminating collecting lenses 17 Light space, the length in printing opacity space is more than the length of sensitive chip 14, and the width in printing opacity space is photosensitive more than sensitive chip 14 The width of window.

As shown in Figure 14 and Figure 15, picture signal receiving unit 10 also includes filter coating 16, and filter coating 16 is arranged on second In framework 12 and positioned between the second light-passing board 13 and sensitive chip 14.So, can be effectively filled into by filter coating 16 Veiling glare up at sensitive chip 14, it is to avoid daylight or light-illuminating affect picture signal receiving unit at sensitive chip 14 10 certainty of measurement, improves the measurement result of image sensing device, improves the stability in use of image sensing device.

It should be noted that filter coating 16 is narrow bandpass filter coating, the filter coating 16 can make the light of narrower range wavelength Pass through, and the light of other wavelength cannot pass through, when the light beam that luminescence unit 20 sends is monochromatic light, from monochromatic wavelength Corresponding narrow bandpass filter coating 16 effectively can filter the interference light of other wavelength, as interference light in this practicality The close light of new monochromatic wavelength used, because light quantity is less, does not constitute to the scanning result of image sensing device Substantial impact.

Certainly, in an alternative embodiment (not shown) of utility model, the ray structure 23 of luminescence unit 20 sends Light beam include invisible infrared light and visible ray, image sensing device is scanned detection work by invisible infrared light, The position of ray structure 23 or collecting lenses 17 is adjusted by visible ray, it is also possible to for the work of image sensing device The instruction of state, when ray structure 23 breaks down, can in time find maintenance, so as to improve making for image sensing device Use reliability.Moreover, filter coating 16 can filter out the visible ray that ray structure 23 sends, so as to avoid visible ray from arriving Up at sensitive chip 14.

In alternative embodiment as shown in Figure 10 and Figure 11, determinand 3 is located at luminescence unit 20 and picture signal receives single Between unit 10, and the distance between the surface 304 and surface 305 of determinand 3 is a, a part of light beam that luminescence unit 20 sends Blocked by determinand 3, and another part light that luminescence unit 20 sends can reach picture signal and receive single by determinand 3 At unit 10, and pass through in the light beam of determinand 3, light 201 is tangent with the upper surface 305 of determinand 3, light 202 and determinand 3 Lower surface 304 it is tangent, and by collecting lenses 17, finally converge to the points of the A on sensitive chip 14 and B pointed out, and point A and point Region between B does not have light entrance.Sensitive chip 14 can convert optical signals into the signal of telecommunication, export in the form of a voltage, Therefore, have the part that light is irradiated to export in the form of high level on sensitive chip 14, without light irradiation where, can be with Low level display output, these signals of telecommunication are by the output of adapter 29 to after-treatment system 110, the basis of after-treatment system 110 The points and the resolution of sensitive chip 14 of point A and point B point-to-point transmissions, can scan the shape of line segment AB, and calculate point A and point The distance between B b.There is error amount △ a, △ a=a-b between actual value a and measured value b.Sent due to luminescence unit 20 Light beam has good directivity, therefore the numerical value meeting very little of △ a, so as to ensure that image sensing device can be accurately measured Size a.Meanwhile, determinand 3 is constantly moved, and image sensing device can scan a plurality of line segment AB, a plurality of according to what is obtained Line segment AB, can reliably draw out the plane graph on the surface 303 of determinand 3.

In the alternative embodiment shown in Figure 16, axis and the luminous list of the collecting lenses 17 of picture signal receiving unit 10 The distance between axis of convex lenss 22 of unit 20 is h, when picture signal receiving unit 10 collecting lenses 17 axis with send out When the axis of the convex lenss 22 of light unit 20 is misaligned, light beam that ray structure 23 sends can be effectively prevented from picture signal Hot spot is formed at receiving unit 10, so as to improve the light intensity uniform of the light beam that picture signal receiving unit 10 is received, is carried The high accuracy of the measurement result of picture signal receiving unit 10.

As shown in figure 17, luminescence unit 20 and picture signal receiving unit 10 are two, two luminescence units 20 and two Individual picture signal receiving unit 10 surrounds measurement space 11 jointly, and two luminescence units 20 are disposed adjacent, two picture signals Receiving unit 10 is disposed adjacent, and two picture signal receiving units 10 are vertically arranged.By two luminescence units 20 and two figures As signal receiving unit 10 is used cooperatively jointly, the light 201 sent using the ray structure 23 of a luminescence unit 20 and light Line 202 simultaneously passes through the plane graph that mobile determinand 3 just effectively measuring can obtain the surface 303 of determinand 3, is sent out using one Light 203 that the ray structure 23 of light unit 20 sends and light 204 simultaneously just can be effectively measuring by mobile determinand 3 To the plane graph on the surface 302 of determinand 3, so as to further obtain the 3-D solid structure figure of determinand 3, determinand is measured 3 monnolithic case size, so as to improve the practicality of image sensing device.

In alternative embodiment as shown in Figure 18 and Figure 19, picture signal receiving unit 10 also includes auxiliary light emission structure 18, auxiliary light emission structure 18 is arranged between the light-passing board 13 of collecting lenses 17 and second.So, the band of picture signal receiving unit 10 Have auxiliary light emission structure 18, when the range image signal receiving unit 10 of determinand 3 it is closer to the distance when, by auxiliary light emission structure 18 light for sending reach sensitive chip 14 after the surface emitting relative with picture signal receiving unit 10 of determinand 3, equally The shape on the surface relative with picture signal receiving unit 10 for obtaining determinand can be scanned.When continuous mobile determinand 3, The plane graph on the surface for obtaining relative with picture signal receiving unit 10 just can be accurately measured by after-treatment system 110.

As shown in figure 18, picture signal receiving unit 10 be two, in two picture signal receiving units 10 with Luminescence unit 20 is parallel and is oppositely arranged, and another in two picture signal receiving units 10 is vertical with luminescence unit 20 to be set Put, and two picture signal receiving units 10 and luminescence unit 20 surround measurement space 11 jointly.This ensure that when determinand 3 When a distance picture signal receiving unit 10 adjacent with luminescence unit 20 is nearer, picture signal receiving unit 10 can be passed through The light velocity measurement that sends of auxiliary light emission structure 18 obtain the plane graph on the surface 302 of determinand 3, so as to further combined with determinand The plane graph on 3 surface 303 and obtain the 3-D solid structure figure of determinand 3.

Certainly in the alternative embodiment of an image sensing device (not shown) of the present utility model, the He of luminescence unit 1 Picture signal receiving unit 2 is multiple, and multiple luminescence units 1 and multiple images signal receiving unit 2 are corresponded and arranged simultaneously Use cooperatively.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, work, device, component and/or combinations thereof.

It should be noted that the description and claims of this application and the term " first " in above-mentioned accompanying drawing, " Two " it is etc. the object for distinguishing similar, without for describing specific order or precedence.It should be appreciated that so using Data can exchange in the appropriate case, so that presently filed embodiment described herein can be with except illustrating here Or the order beyond those of description is implemented.

Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (24)

1. a kind of image read-out, it is characterised in that include：

Picture signal receiving unit (10)；

Luminescence unit (20), the luminescence unit (20) and described image signal receiving unit (10) are oppositely arranged, described luminous Unit (20) is for described image signal receiving unit (10) emitting parallel light beam.

2. image read-out according to claim 1, it is characterised in that the luminescence unit (20) and described image are believed Number receiving unit (10) be arranged in parallel.

3. image read-out according to claim 1, it is characterised in that the luminescence unit (20) includes：

Convex lenss (22)；

Ray structure (23), the ray structure (23) is oppositely arranged with the convex lenss (22), and the ray structure (23) Positioned at the focal point of the convex lenss (22).

4. image read-out according to claim 3, it is characterised in that the luminescence unit (20) is including the first framework (21), first framework (21) is with hatch frame (211), and it is interior that the convex lenss (22) are arranged on first framework (21) And positioned at the hatch frame (211) place, the ray structure (23) is arranged on opening with described in first framework (21) The relative one end of mouth structure (211).

5. image read-out according to claim 3, it is characterised in that the convex lenss (22) are multiple, Duo Gesuo State convex lenss (22) to set gradually along same straight line, the ray structure (23) be it is multiple, multiple ray structures (23) with Multiple convex lenss (22) correspond and arrange.

6. image read-out according to claim 5, it is characterised in that multiple convex lenss (22) are integrally formed.

7. image read-out according to claim 4, it is characterised in that first framework (21) includes：

Base plate (212), the ray structure (23) is arranged on the base plate (212)；

Border structure (213), the border structure (213) is connected with the base plate (212), and the base plate (212) and described Border structure (213) surrounds biography light space (214) jointly, and the hatch frame (211) is remote positioned at biography light space (214) From one end of the base plate (212).

8. image read-out according to claim 7, it is characterised in that the luminescence unit (20) also includes：

Pcb board (24), the pcb board (24) is movably disposed on the base plate (212), and the ray structure (23) is located at The side away from the base plate (212) of the pcb board (24)；

First position micromatic setting (25), the first position micromatic setting (25) and the pcb board (24) drive connection are adjusting The position of the whole ray structure (23).

9. image read-out according to claim 7, it is characterised in that the luminescence unit (20) also includes second Micromatic setting (26) is put, with raised (215) are installed, the convex lenss (22) are by described second for the border structure (213) Fine position device (26) is arranged on raised (215) place of the installation, and the ray structure (23) installs convex relative to described Play the position-adjustable of (215).

10. image read-out according to claim 4, it is characterised in that the luminescence unit (20) also includes first Light-passing board (27), first light-passing board (27) is arranged on the hatch frame (211) place and is located at the convex lenss (22) Away from the side of the ray structure (23).

11. image read-outs according to claim 7, it is characterised in that the luminescence unit (20) also includes dividing plate, The dividing plate is multiple, and multiple dividing plates are arranged in biography light space (214) to separate biography light space (214) Into multiple biography light subspaces separately, a corresponding convex lens (22) and a ray structure (23) is located at In one biography light subspace.

12. image read-outs according to claim 1, it is characterised in that the luminescence unit (20) includes：

Reflection shield (28), the reflection shield (28) has opening with cavity (281), the side of the cavity (281)；

Ray structure (23), the ray structure (23) is arranged at the geometric center of the opening.

13. image read-outs according to claim 12, it is characterised in that the reflection shield (28) is including what is be connected Light-reflecting portion (282) and light absorption unit (283), the light-reflecting portion (282) and the light absorption unit (283) surround the cavity jointly (281), described opening is formed in one end away from the light-reflecting portion (282) of the light absorption unit (283).

14. image read-outs according to claim 13, it is characterised in that the light absorption unit (283) is including sequentially connecting The multiple extinction plates (284) for connecing, the surface of the direction cavity (281) of the extinction plate (284) is extinction plane, described anti- The surface of the direction cavity (281) in light portion (282) is reflective surface, and the extinction plane is smoothed with the reflective surface Cross.

15. image read-outs according to claim 14, it is characterised in that the opening is in tetragon, the extinction Portion (283) includes four extinction plates (284), and two adjacent extinction plates (284) are vertically arranged.

16. image read-outs according to claim 14, it is characterised in that the extinction plane is in black, it is described anti- Light curved surface is reflective mirror.

17. image read-outs according to claim 16, it is characterised in that the reflective mirror is paraboloidal part The part surface of the part surface or ellipsoid of surface or sphere.

18. image read-outs according to any one of claim 12 to 17, it is characterised in that the reflection shield (28) For multiple, multiple reflection shields (28) set gradually along a straight line, the ray structure (23) be it is multiple, it is multiple described luminous Structure (23) is corresponded with multiple reflection shields (28) and arranged.

19. image read-outs according to claim 1, it is characterised in that described image signal receiving unit (10) is wrapped The second light-passing board (13), sensitive chip (14) and the biography for including second framework (12) and being successively set in the second framework (12) Sensor substrate (15), wherein, the sensitive chip (14) is arranged on the sensor base plate (15), second light-passing board (13) side being located near the luminescence unit (20) relative to the sensitive chip (14).

20. image read-out according to claim 19, it is characterised in that described image signal receiving unit (10) is also Including filter coating (16), the filter coating (16) is arranged in the second framework (12) and is located at second light-passing board (13) And the sensitive chip (14) between.

21. image read-outs according to claim 19, it is characterised in that described image signal receiving unit (10) is also Including collecting lenses (17), the collecting lenses (17) are arranged in the second framework (12) and are located at second light-passing board (13) and the sensitive chip (14) between.

22. image read-outs according to claim 21, it is characterised in that described image signal receiving unit (10) is also Including auxiliary light emission structure (18), the auxiliary light emission structure (18) is arranged on collecting lenses (17) with second light-passing board (13) between.

23. image read-outs according to claim 1, it is characterised in that the luminescence unit (20) and described image Signal receiving unit (10) is two, and two luminescence units (20) and two described image signal receiving units (10) are altogether It is same to surround measurement space (11), and two luminescence units (20) are disposed adjacent, two described image signal receiving units (10) it is disposed adjacent, two described image signal receiving units (10) are vertically arranged.

24. image read-outs according to claim 1, it is characterised in that described image signal receiving unit (10) is Two, in two described image signal receiving units (10) is parallel with the luminescence unit (20) and is oppositely arranged, two Another in individual described image signal receiving unit (10) is vertically arranged with the luminescence unit (20), and two described images Signal receiving unit (10) and the luminescence unit (20) surround measurement space (11) jointly.