CN105760808B - Imaging plate, image collector and terminal - Google Patents
Imaging plate, image collector and terminal Download PDFInfo
- Publication number
- CN105760808B CN105760808B CN201410790337.7A CN201410790337A CN105760808B CN 105760808 B CN105760808 B CN 105760808B CN 201410790337 A CN201410790337 A CN 201410790337A CN 105760808 B CN105760808 B CN 105760808B
- Authority
- CN
- China
- Prior art keywords
- light
- plate
- imaging
- light guide
- blocking film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention discloses an imaging plate, an image collector and a terminal, wherein the imaging plate comprises a light-transmitting substrate and a light-blocking film arranged on one surface of the substrate or in the middle of the substrate, and the light-blocking film is provided with an imaging hole; the imaging plate, the image acquisition device and the light source are designed to form the image acquisition device, or the imaging plate, the light guide plate, the image acquisition device and the light source are designed to form the image acquisition device, so that the thickness of the image acquisition device is reduced, the cost is reduced, the image resolution is greatly improved, the structural components are simplified, and the imaging plate or the image acquisition device is integrated in the terminal, so that the image acquisition function is added to the terminal.
Description
Technical Field
The invention relates to the technical field of image acquisition, in particular to an imaging plate, an image acquisition device and a terminal.
Background
As image collectors are applied in more and more fields, for example, various electronic terminals, mobile phones, flat panels, televisions, and the like; in various security systems, access control identification systems, safes and the like. Taking the application of the image collector in the electronic terminal as an example, as the electronic terminal tends to be ultra-thin, higher requirements are naturally provided for the aspects of the volume, the thickness and the like of the image collector integrated on the electronic terminal.
A conventional image collector, such as the thin optical fingerprint collector disclosed in 201120403301.0, generally includes an image collecting prism, an imaging device and an image processing assembly, wherein the imaging device further includes a lens assembly, and components such as an optical-to-electrical signal conversion circuit and a digital processor. Because the image acquisition prism is used as an acquisition part of the fingerprint light, a light path which is long enough can meet the imaging requirement of the light, and particularly, the imaging of the fingerprint light is completed through the lens component, so that the imaging requirement of the light is met by a longer light path. Because the image acquisition prism and the lens component have larger volume and thickness, and factors such as optical path length and the like, the image acquisition device has to have larger volume and thickness to realize the acquisition of the fingerprint image. Due to high cost and structural complexity brought by relevant parts such as an image acquisition prism, a lens assembly and the like, the existing image acquirer is difficult to meet the requirements of various electronic terminals on low cost, small volume and low thinness of the image acquirer.
At present, fingerprint collectors used by mobile terminals (hereinafter, referred to as mobile phones) such as mobile phones are mainly of a semiconductor type, and mass production of optical fingerprint collectors used for mobile phones is not available in the market. On one hand, the semiconductor chip image collector has higher cost, on the other hand, the semiconductor chip image collector has difficulty in integration, and can not well meet the requirements of people. The optical image collector has too thick thickness and is difficult to meet the ultra-thinning requirement of ultra-thin electronic products.
In addition, the semiconductor type fingerprint collector is limited by the principle, a finger can finish fingerprint collection only by pressing the surface of the collector, and if the fingerprint collector is placed below a glass panel of a mobile phone, a high-quality fingerprint image is difficult to obtain, so that the conventional universal mobile phone fingerprint collector has only two mounting modes, namely, a hole is formed in the glass panel of the mobile phone to place the fingerprint collector, the representative mobile phone is an apple and samsung, the other mobile phone is a mobile phone back surface to place the fingerprint collector, and the representative mobile phone is an HTC and Huacheng mobile phone. Either of these two approaches undoubtedly detracts from the overall aesthetics and robustness of the handset.
Therefore, how to reduce the thickness of the optical fingerprint collecting device becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide an imaging plate which is simple in structure, thin in thickness, low in cost, simple and convenient to install and capable of being used in various types of equipment with an image acquisition function.
Another object of the present invention is to provide an image collector, which has a thin thickness, a simple structure, few components, a low cost, a high image resolution, and a convenient installation.
It is still another object of the present invention to provide a terminal that adds an image capturing function.
In order to achieve the above object, the present invention provides an imaging plate, which includes a light-transmitting substrate and a light-blocking film disposed on one surface of the substrate or in the middle of the substrate, wherein the light-blocking film is provided with an imaging hole.
Further, the imaging hole is multiple, and an imaging hole matrix is formed.
Further, the pitch between two adjacent imaging holes on the same column of the imaging hole matrix is the same as the pitch between two adjacent imaging holes on the same row.
Further, the thickness range of the light-blocking film is 0.05um-1 mm.
Further, the diameter of the imaging aperture ranges from 1um to 500 um.
The image collector comprises an imaging plate and an image collecting device, wherein the image collecting device comprises a photosensitive plate, and the photosensitive plate and a light blocking film of the imaging plate are arranged at intervals.
The image collector comprises an imaging plate, an image collecting device and a light source, wherein the light-blocking film is arranged on one surface of a substrate; the image acquisition device comprises a light sensing plate, and the light sensing plate is arranged on one side of the imaging plate close to the light blocking film at intervals; the substrate is used as a light guide plate, and the light source is arranged on the side face of the light guide plate and/or on the position, close to the side face, of the upper surface of the light guide plate and/or on the position, close to the side face, of the lower surface of the light guide plate.
The utility model provides an image collector, its includes the membrane of hindering form setting imaging plate in the middle of the base plate, image acquisition device and light source, the base plate is multilayer laminated structure, it sets up between adjacent plywood to hinder the membrane, image acquisition device includes the sensitization board, the sensitization board sets up in imaging plate one side to keep away from image acquisition device the plywood of base plate is as the light guide plate, the light source sets up the side of light guide plate and/or the upper surface of light guide plate are close to side department and/or the lower surface of light guide plate is close to side department.
The utility model provides an image collector, its includes the formation of image board, light guide plate, image acquisition device and light source, image acquisition device includes the sensitization board, light guide plate and sensitization board setting are in the both sides of formation of image board, and the membrane interval that hinders of sensitization board and formation of image board sets up, the light source sets up the side of light guide plate and/or the upper surface of light guide plate are close to side department and/or the lower surface of light guide plate is close to side department.
The light source module further comprises a plurality of supports for bearing the light sources, and the light sources are arranged on the side face of the light guide plate and/or on the position, close to the side face, of the upper surface of the light guide plate and/or on the position, close to the side face, of the lower surface of the light guide plate at equal intervals through the supports.
Further, the support is provided with a light guide groove, and the light source is arranged in the light guide groove.
Further, the holder is disposed such that an angle between a light ray incident into the light guide plate through the light guide groove and a normal line is arcsin (n)0/n2) To arcsin (n)1/n2) The position of (a); wherein n is0Is the refractive index of air; n is1Refractive index of the liquid on the surface of the object contacting the light guide plate; n is2Is the refractive index of the light guide plate.
Further, the distance from the surface of the light guide plate contacting the detected object to the light-blocking film is greater than the distance from the light-blocking film to the light-sensing plate, wherein the distance from the light-blocking film to the light-sensing plate is greater than 1 um.
Further, the image collector adopting the light-blocking film provided with the imaging hole matrix is characterized in that the distance between two adjacent imaging holes is X, and the following conditions are met: 2Dtan (a/2) < X <2Dtan (a/2), wherein D is the distance from the surface of the light guide plate far away from the light-blocking film to the light-blocking film, D is the distance from the light-blocking film to the light-sensitive plate, and a is the imaging angle of each imaging hole.
A terminal comprises the image collector.
The terminal comprises an imaging plate arranged on one surface of a substrate and provided with a light-blocking film, wherein the imaging plate is attached to the lower side of a transparent panel of the terminal.
After the scheme is adopted, the invention has the following beneficial effects:
1. the imaging plate consisting of the transparent substrate and the light-blocking film with the imaging holes on the substrate has a simple structure, replaces the existing prism, has the thickness of micron order or even below, is far thinner than the thickness of the prism, greatly reduces the cost, can be applied to various types of equipment with image acquisition functions, and is simple and convenient to install;
2. the imaging holes on the light-blocking film are arranged in a plurality of forms to form an imaging hole matrix, so that when the light-blocking film is applied to an image collector and a terminal, an object to be collected passes through the imaging holes, and a plurality of image parts formed on the image collector can be directly spliced into a complete image of the object to be collected;
3. the thickness of the light-blocking film is designed to be in the range of 0.05um-1mm, so that when the designed imaging plate is applied to an image collector and a terminal, the light transmission with the wavelength in the range of 300 nm-1000 nm can be blocked, a good light-blocking effect is achieved, light can only pass through an imaging hole, the condition necessary for realizing pinhole imaging is met, the imaging plate is guaranteed to be thin enough, and the light-blocking film can be applied to various image collectors and terminals in a large range;
4. compared with the existing image collector adopting a prism structure, the thickness of the imaging plate is far thinner than that of the prism, the imaging optical path of the image collector is far shorter than that of the image collector adopting the prism structure, and the overall thickness of the image collector is far thinner than that of the image collector adopting the prism structure;
5. the terminal with the image collector integrates the image collector on the terminal, can fully utilize the original structural design of the terminal, and integrates the image collector and the terminal, thereby increasing all beneficial effects of the image collector;
6. the terminal with the imaging plate can ensure that the function of image acquisition is added on the premise of keeping the thickness of the terminal unchanged.
Drawings
FIG. 1-1 is a schematic perspective exploded view of an imaging panel according to an embodiment of the present invention;
FIGS. 1-2 are schematic views of a combined structure of an embodiment of an imaging plate of the present invention;
FIG. 2 is a schematic perspective exploded view of an imaging plate according to a second embodiment of the present invention;
FIG. 3 is a schematic three-component configuration of an embodiment of an imaging plate of the present invention;
FIG. 4 is a schematic structural diagram of an image collector according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a second embodiment of an image collector according to the present invention;
FIG. 6 is a schematic diagram of a third structure of an embodiment of an image collector of the invention;
FIG. 7 is an enlarged schematic view of portion A of FIG. 6;
FIG. 8 is a diagram of a fourth structure of an image collector according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of an image collector according to a fifth embodiment of the present invention;
FIG. 10 is a schematic structural diagram of an image collector according to a sixth embodiment of the present invention;
FIG. 11 is a schematic structural diagram of an image collector according to an embodiment of the present invention;
FIG. 12 is an eighth schematic structural diagram of an embodiment of an image collector of the present invention;
FIG. 13 is a schematic structural diagram of an image collector according to a ninth embodiment of the present invention;
FIG. 14 is a schematic perspective exploded view of an image collector according to a ninth embodiment of the present invention;
FIG. 15 is a schematic structural diagram of an image collector according to an embodiment of the present invention;
FIG. 16 is a schematic structural diagram of an eleventh embodiment of an image collector of the present invention;
fig. 17 is a schematic structural diagram of an embodiment of the terminal of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings.
Fig. 1-1 is a schematic perspective exploded view of an imaging plate according to an embodiment of the present invention, and fig. 1-2 shows a perspective structure of the imaging plate according to the embodiment. The imaging plate shown in fig. 1-1 comprises a light-transmitting substrate 1, and a light-blocking film 2 is provided on one surface of the substrate 1, i.e. on the upper surface or the lower surface of the substrate 1, in this embodiment, the light-blocking film 2 is provided on the lower surface of the substrate 1. The substrate 1 is made of a transparent material such as glass or resin. The light-blocking film 2 is made of an opaque material, in this embodiment, the light-blocking film 2 is disposed on the lower surface of the substrate 1 by bonding or other methods, referring to fig. 1-2, the light-blocking film 2 is provided with one or more imaging holes 3, which are preferably porous in practical application, and in this embodiment, the light-blocking film is described as porous, and the description of a single hole is omitted here.
The shape of the imaging aperture 3 may be square, circular, elliptical, or the like, but is preferably circular. The light-blocking film 2 has a thickness in the range of 0.05um-1mm, and the arrangement can block the light with a wavelength in the range of 300 nm-1000 nm, and the thickness of the light-blocking film 2 is preferably in the range of 0.1um to 50um, such as 0.1um, 0.5um, 1um, 50 um. The thickness of the light-blocking film 2 should be selected to ensure that it is thin enough, and to ensure its effective light-blocking function, and it is not easy to break. The diameter of the imaging bore 3 is in the range 1um-500um, further between 10um-60um can be chosen, 25um, 35um or 40um being preferred in this embodiment. The light-blocking film 2 can be made of a layer of film or a plurality of layers of films which are overlapped, if the light-blocking film is made of a plurality of layers of films which are overlapped, the positions of a plurality of imaging holes 3 on each layer of film are in one-to-one correspondence from top to bottom, so that the imaging holes between the upper film layer and the lower film layer are not staggered to influence the light path.
As shown in fig. 2, a schematic perspective structure of a second embodiment of the imaging plate of the present invention has most of the same structures as those of the first embodiment, and will not be described again, but the difference is that: the plurality of imaging holes form an imaging hole matrix, and the present embodiment preferably uses a pattern in which the pitch between two adjacent imaging holes 3 located on the same column of the imaging hole matrix is the same as the pitch between two adjacent imaging holes 3 located on the same row.
Fig. 3 is a schematic diagram of a three-combination structure of an imaging plate of the present invention, which has a structure similar to that of the above-mentioned embodiment, except that: the substrate 1 is a two-layer laminate structure, and the light-blocking film 2 is arranged between two layers of laminates 12.
In other embodiments based on fig. 1, 2 or 3, the substrate 1 may also be of a multi-layer laminate structure.
Fig. 4 shows a schematic structural diagram of an embodiment of an image capturing device according to the present invention, which includes an imaging plate 4 and an image capturing device 5, where the imaging plate 4 includes a transparent substrate 1 and a light-blocking film 2 disposed on an upper surface of the substrate 1, the thickness of the light-blocking film 2 is 0.5um, the diameter of the imaging hole 3 is 35um, the light-blocking film 2 is provided with one imaging hole 3 or a plurality of imaging holes 3, the image capturing device 5 includes a photosensitive plate 7, and the photosensitive plate 7 includes a photosensitive chip or an image processor disposed on the uppermost layer. The light-sensing plate 7 is disposed parallel to the imaging plate 4. The light-blocking film 2 is spaced from the light-sensing plate 7 of the image pickup device 5.
The imaging plate 4 in this embodiment can be used by placing the light-blocking film 2 on the upper surface of the substrate 1 and turning the light-blocking film 2 upside down so that the light-blocking film 2 is positioned on the lower surface of the substrate 1, and can also be used by placing the imaging plate 4 in the middle of the substrate 1 with the light-blocking film 2. This image collector mainly used face's collection, during the use, will face place 4 tops of formation of image board and aim at formation of image hole 3, it passes through aperture imaging principle, with the image acquisition device 5 of face image collection on.
As shown in fig. 5, a second structure schematic diagram of the image collector of the present invention includes an imaging plate 4 with a light-blocking film 2 disposed on a lower surface of a substrate 1, an image collector 5 and a light source 6. The imaging plate 4 adopts the imaging plate structure shown in fig. 1, the thickness of the light-blocking film 2 is selected to be 0.5um, and the diameter of the imaging hole 3 is selected to be 35 um. The image capturing device 5 includes a light-sensing plate 7, and the light-sensing plate 7 includes a light-sensing chip or an image processor on the uppermost layer. The light-sensing plate 7 is disposed parallel to the imaging plate 4. The light-sensing plate 7 is arranged below the imaging plate 4 at intervals; the substrate 1 is used as a light guide plate, the distance from the surface of the substrate 1 contacting the detected object (i.e. the surface of the substrate 1 far from the light-blocking film 2) to the light-blocking film 2 is an object distance D, the distance from the light-blocking film 2 to the light-sensing plate 7 is an image distance D, the object distance D is greater than the image distance D, wherein the image distance D is greater than 1um, the minimum image distance at which the detected object can be imaged is ensured, generally, the image distance D is 0.3mm to 1mm, the object distance D is 1.5 times to 3 times of the image distance D, the image distance D is 0.5mm, and the object distance D is 1 mm. The light source 6 is preferably an LED light emitting element, and one or more light sources 6 may be selected as the light source 6, and a plurality of light sources 6 are provided in consideration of the position where light emitted therefrom can be irradiated to the object to be collected, for example, the position of the object to be detected, for example, a finger. In order to ensure that the light emitted from the light source 6 is not blocked, in this embodiment, the length of the light-blocking film 2 is preferably smaller than the length of the substrate 1, so that the left end and the right end of the light-blocking film 2 are both located at the inner side of the lower surface of the substrate 1. The plurality of light sources 6 are directly fixed to the left and right side surfaces of the substrate 1 and the lower surface of the substrate 1 near the left and right side surfaces by bonding or other connection means. The light sources 6 are arranged on the base plate 1 at equal intervals, so that after the collected object such as a finger is pressed on the base plate 1, scattered light emitted by the light sources 6 penetrates out of the base plate 1 and irradiates on the finger, the finger is imaged on the image acquisition device 5 through the imaging hole 3 (small hole imaging principle) on the light blocking film 2, and the image acquisition device 5 acquires finger image information. When the plurality of imaging holes 3 on the light-blocking film 2 do not form an imaging hole matrix, a plurality of local images on the image acquisition device 5 can be mutually mixed, and a large-size complete fingerprint image can be formed only through the processes of inverted image correction, local image positioning, gray level equalization, redundant cutting, splicing and the like; if the imaging holes 3 form an imaging hole matrix, a plurality of partial images formed on the image acquisition device 5 can be directly spliced into a complete finger image, and the distance X between two adjacent imaging holes 3 in the same row and the same column on the imaging hole matrix satisfies: 2Dtan (a/2) < X <2Dtan (a/2), wherein D is the object distance, D is the image distance, a is the imaging angle of each imaging hole, a is 45 degrees, D is 1mm, D is 0.5mm, then 0.414mm ≦ X ≦ 0.828mm, and the distance X is selected to be 0.5 mm.
In the above embodiment, if the length of the light-blocking film 2 is matched with the length of the substrate 1, the light sources 6 can be arranged only on the left and right sides of the substrate 1, so that the light emitted by the light sources 6 can be ensured not to be blocked.
Fig. 6 is a schematic diagram of a third structure of an embodiment of an image collector of the present invention, and most of the structure of the image collector is the same as that of fig. 5, except that: the light sources 6 are arranged on the left side surface and the right side surface of the base plate 1 at equal intervals through two brackets 8, light guide grooves 9 are respectively arranged on the brackets 8, the two light guide grooves 9 are symmetrically arranged, the light sources 6 are respectively arranged in the light guide grooves 9, and the most basic arrangement factor of the light guide grooves 9 is to ensure that light rays emitted by the light sources 6 can be emitted into the base plate 1 from the light guide grooves 9 and can be emitted onto an object to be collected from the base plate 1.
The embodiment adopts the optimal selection: as shown in fig. 7, the light guide groove 9 is formed obliquely on the holder 8. The inclination angle of the light guide groove 9 is such that the included angle between the normal and the light beam entering the substrate 1 through the light guide groove 9 is arcsin (n)0/n2) To arcsin (n)1/n2) Wherein n is0Is the refractive index of air; n is1Is the refractive index of the liquid on the surface of the object contacting the substrate 1; n is2The angle range is derived from the law of refraction for the refractive index of the substrate 1, when n0＝1.0，n1＝1.33，n2This angle α is between 41.8 and 62.5 degrees, where α is chosen to be 45 degrees. The advantages of the design are as follows: when the collected object does not contact the substrate 1, the light rays within the included angle range emitted into the substrate 1 by the light source 6 can form transverse total reflection propagation in the substrate 1 (see the total reflection light path of fig. 5 for illustration), and when the collected object such as a finger contacts the substrate 1, because the finger has uneven fingerprint and sweat, when the finger presses the substrate 1, the sweat contacts the substrate 1, so that the medium contacting the substrate 1 is changed into sweat from air, the total reflection propagation of the light rays in the substrate 1 is damaged to form scattered light, the scattered light passes through the array type imaging holes 3 and forms an image on the photosensitive plate 7, and the design ensures that the light rays are relatively uniform and soft in the image collecting process and can not be dazzled.
As shown in fig. 8, a fourth structural schematic diagram of an embodiment of the image collector of the present invention is shown, the image collector includes an imaging plate 4, an image capturing device 5, and a plurality of light sources 6, where the light-blocking film 2 is disposed in the middle of the substrate 1, a structure of the imaging plate 4 is shown in fig. 3, a structure of the image capturing device 5 is the same as that of the image capturing device 5 in fig. 4, and is not repeated, an upper plate of the substrate 1 away from the image capturing device 5 is used as a light guide plate, a length of the light-blocking film 2 in this embodiment is set to be smaller than that of the substrate 1, left and right ends of the light-blocking film 2 are both located at an inner side of the substrate 1, and the plurality of light sources 6 are disposed at equal intervals at left and right sides of the substrate 1 and at positions close to the left and right sides of the lower surface of the substrate 1.
Fig. 9 is a schematic structural diagram of an embodiment of an image collector of the present invention, which is based on another structural design of the structure of the embodiment of the image collector shown in fig. 8, in which the length of the light-blocking film 2 in this embodiment is made to match the length of the substrate 1, and the light sources 6 in this embodiment are selectively arranged in the same manner as in fig. 8, except that the light sources 6 are arranged to ensure that the light emitted therefrom is not blocked, so that the light sources 6 are arranged on the left and right sides of the upper plate of the substrate 1 at equal intervals.
Fig. 10 is a schematic diagram of a sixth structure of an image collector according to an embodiment of the present invention, and most of the structures of the image collector are the same as those of the image collector shown in fig. 8, except that: the light sources 6 are mounted on the lower surface of the substrate 1 close to the left and right side surfaces at equal intervals through two supports 8, light guide grooves 9 are respectively arranged on the supports 8, the two light guide grooves 9 are symmetrically arranged, the light sources 6 are respectively arranged in the light guide grooves 9, and light rays emitted by the light sources 6 are emitted into the substrate 1 from the light guide grooves 9.
Fig. 11 is a schematic structural diagram of an image collector according to a seventh embodiment of the present invention, which includes an imaging plate 4, an image collecting device 5, and a plurality of light sources 6, where the structures of the imaging plate 4 and the plurality of light sources 6 are the same as those in fig. 8, except that: the light-sensing plate 7 of the image acquisition device 5 is directly arranged on the lower surface of the substrate 1, and the design further thins the thickness of the image acquisition device.
Fig. 12 is a schematic structural diagram of an eighth embodiment of the image collector of the present invention, which includes an imaging plate 4, a light guide plate 10, an image collecting device 5, and a plurality of light sources 6, wherein the light guide plate 10 and the light sensing plate 7 of the image collecting device 5 are disposed at intervals on the upper and lower sides of the imaging plate 4. The light guide plate 10 is a transparent thin plate and may be made of a transparent material such as glass or resin. The plurality of light sources 6 are disposed at equal intervals on the left and right side surfaces of the light guide plate 10 and the portions of the lower surface of the light guide plate 10 near the left and right side surfaces, and the object distance D in this embodiment is the distance from the surface of the light guide plate 10 contacting the object to be detected to the light blocking film 2.
Fig. 13 and 14 show a nine-structure schematic diagram and a three-dimensional exploded structure schematic diagram of an embodiment of an image collector of the present invention, most of the structures of which are the same as those of fig. 12, except that: the plurality of light sources 6 are arranged on the lower surface of the light guide plate 10 close to the left side surface and the right side surface at equal intervals through two supports 8, light guide grooves 9 are respectively arranged on the supports 8, the two light guide grooves 9 are symmetrically arranged, the plurality of light sources 6 are respectively arranged in the light guide grooves 9, and light rays emitted by the plurality of light sources 6 are emitted into the light guide plate 10 from the light guide grooves 9.
As shown in fig. 15, a tenth structural schematic diagram of an embodiment of the image collector of the present invention includes an imaging plate 4, a light guide plate 10, an image collecting device 5, and a plurality of light sources 6, wherein the light guide plate 10 and the light sensing plate 7 of the image collecting device 5 are disposed at an interval on the upper and lower sides of the imaging plate 4, the light blocking film 2 of the imaging plate 4 is disposed on the upper surface of the substrate 1, the lower surface of the substrate 1 contacts with the light sensing plate 7 of the image collecting device 5, so as to further reduce the overall thickness of the image collector, and the plurality of light sources 6 are disposed at an interval on the left and right side surfaces of the light guide plate 10 and the lower surface of the light guide plate 10 near the left and right side surfaces.
Fig. 16 is a schematic structural diagram of an eleventh embodiment of an image collector, and most of the structure of the eleventh embodiment is the same as that of fig. 15, except that: the light sources 6 are arranged on the lower surface of the light guide plate 10 close to the left side surface and the right side surface at equal intervals through two supports 8, light guide grooves 9 are respectively arranged on the supports 8, the two light guide grooves 9 are symmetrically arranged, the light sources 6 are respectively placed in the light guide grooves 9, and light rays emitted by the light sources 6 are emitted into the light guide plate 10 from the light guide grooves 9.
The image collector of the present invention shown in fig. 4 to fig. 16 can be integrated on various terminals, such as a mobile terminal, respectively, so that the formed new terminal has all the advantages of the image collector.
As shown in fig. 17, which is a schematic structural diagram of a tenth embodiment of the image collector of the present invention, an imaging plate in which a light-blocking film 2 is disposed on one side of a substrate 1 is integrated on a terminal, in this embodiment, a mobile terminal device is selected, and a transparent panel 11 of a mobile phone is disposed on an upper surface of the light-blocking film 2, which ensures that an image collecting function is added under the condition that the thickness of the existing mobile phone is not changed.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (16)
1. An imaging plate, characterized by: the imaging plate is applied to an image collector and comprises a light-transmitting base plate and a light-blocking film arranged on one surface of the base plate or in the middle of the base plate, wherein the light-blocking film is provided with an imaging hole, and an object to be collected is subjected to small-hole imaging through the imaging hole.
2. The imaging plate of claim 1, wherein: the imaging holes are multiple and form an imaging hole matrix.
3. The imaging plate of claim 2, wherein: and the pitch of two adjacent imaging holes on the same column of the imaging hole matrix is the same as the pitch of two adjacent imaging holes on the same row.
4. The imaging plate of claim 1, 2 or 3, wherein: the thickness range of the light-blocking film is 0.05um-1 mm.
5. The imaging plate of claim 4, wherein: the diameter range of the imaging aperture is 1um-500 um.
6. An image collector, characterized by: comprising an imaging plate according to any one of claims 1-5 and an image pick-up device comprising a light-sensing plate, said light-sensing plate being spaced from the light-blocking film of the imaging plate.
7. An image collector, characterized by: an imaging plate comprising the light-blocking film according to any one of claims 1 to 5 disposed on one side of a substrate, an image pickup device, and a light source; the image acquisition device comprises a light sensing plate, and the light sensing plate is arranged on one side of the imaging plate close to the light blocking film at intervals; the substrate is used as a light guide plate, and the light source is arranged on the side face of the light guide plate and/or on the position, close to the side face, of the upper surface of the light guide plate and/or on the position, close to the side face, of the lower surface of the light guide plate.
8. An image collector, characterized by: an imaging plate comprising the light-blocking film of any one of claims 1 to 5 disposed between substrates, an image acquisition device and a light source, wherein the substrates are of a multi-layer plate structure, the light-blocking film is disposed between adjacent layers, the image acquisition device comprises a photosensitive plate disposed on one side of the imaging plate, the layer plate of the substrate away from the image acquisition device is used as a light guide plate, and the light source is disposed on the side surface of the light guide plate and/or on the upper surface of the light guide plate near the side surface and/or on the lower surface of the light guide plate near the side surface.
9. An image collector, characterized by: the imaging plate comprises the imaging plate as claimed in any one of claims 1 to 5, a light guide plate, an image acquisition device and a light source, wherein the image acquisition device comprises a light-sensing plate, the light guide plate and the light-sensing plate are arranged on two sides of the imaging plate, the light-sensing plate and the light-blocking film of the imaging plate are arranged at intervals, and the light source is arranged on the side surface of the light guide plate and/or the position where the upper surface of the light guide plate is close to the side surface and/or the position where the lower surface of the light guide plate is close to the side surface.
10. An image collector as claimed in claim 7, 8 or 9, characterized in that: the light source module is characterized by further comprising a support for bearing the light sources, wherein the light sources are arranged on the side face of the light guide plate and/or on the position, close to the side face, of the upper surface of the light guide plate and/or on the position, close to the side face, of the lower surface of the light guide plate at equal intervals through the support.
11. The image collector of claim 10, wherein: the support is provided with a light guide groove, and the light source is arranged in the light guide groove.
12. The image collector of claim 11, wherein: the holder is arranged so that an angle between a light ray incident into the light guide plate through the light guide groove and a normal line is arcsin (n)0/n2) To arcsin (n)1/n2) The position of (a); wherein n is0Is the refractive index of air; n is1Refractive index of the liquid on the surface of the object contacting the light guide plate; n is2Is the refractive index of the light guide plate.
13. The image collector of claim 12, wherein: the distance from the surface of the detected object contacted by the light guide plate to the light-blocking film is greater than the distance from the light-blocking film to the light-sensing plate, wherein the distance from the light-blocking film to the light-sensing plate is greater than 1 um.
14. The image collector according to claim 13, wherein the image collector adopting the light-blocking film with the array of imaging holes is characterized in that the distance between two adjacent imaging holes is X, and the following condition is satisfied: 2Dtan (a/2) < X <2Dtan (a/2), wherein D is the distance from the surface of the light guide plate far away from the light-blocking film to the light-blocking film, D is the distance from the light-blocking film to the light-sensitive plate, and a is the imaging angle of each imaging hole.
15. A terminal, characterized by: the terminal comprises an image collector according to one of claims 6 to 14.
16. A terminal, characterized by: the terminal comprises an imaging plate arranged on one surface of a substrate and provided with the light-blocking film according to claim 1, wherein the imaging plate is attached below a transparent panel of the terminal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649990 | 2014-11-14 | ||
| CN2014106499901 | 2014-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105760808A CN105760808A (en) | 2016-07-13 |
| CN105760808B true CN105760808B (en) | 2022-04-05 |
Family
ID=53473737
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420806765.XU Active CN204423387U (en) | 2014-11-14 | 2014-12-18 | Imaging plate, image acquisition device and terminal |
| CN201410790337.7A Active CN105760808B (en) | 2014-11-14 | 2014-12-18 | Imaging plate, image collector and terminal |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420806765.XU Active CN204423387U (en) | 2014-11-14 | 2014-12-18 | Imaging plate, image acquisition device and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN204423387U (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204423387U (en) * | 2014-11-14 | 2015-06-24 | 深圳印象认知技术有限公司 | Imaging plate, image acquisition device and terminal |
| CN106875842B (en) | 2015-12-11 | 2020-02-07 | 印象认知（北京）科技有限公司 | Display screen with fingerprint acquisition function |
| CN107341433B (en) * | 2016-04-28 | 2023-12-26 | 渭南印象认知技术有限公司 | Concealed fingerprint collector |
| CN107437055A (en) * | 2016-05-25 | 2017-12-05 | 深圳印象认知技术有限公司 | A kind of image acquisition device and fingerprint collecting equipment |
| WO2017202197A1 (en) * | 2016-05-25 | 2017-11-30 | 深圳印象认知技术有限公司 | Image collector and fingerprint collection device |
| CN106298859B (en) * | 2016-09-30 | 2018-09-04 | 京东方科技集团股份有限公司 | Touch panel and display device |
| CN107168465B (en) * | 2017-05-15 | 2020-01-31 | 京东方科技集团股份有限公司 | Display module and display device |
| CN107426511A (en) * | 2017-05-17 | 2017-12-01 | 威海华菱光电股份有限公司 | Imaging sensor and there is its image sensing scanning system |
| CN109754365B (en) * | 2017-11-07 | 2023-12-05 | 印象认知（北京）科技有限公司 | Image processing method and device |
| CN109271058B (en) * | 2018-08-16 | 2022-01-25 | Oppo广东移动通信有限公司 | Display module and electronic device |
| CN112335049B (en) * | 2018-08-24 | 2024-03-22 | 宁波舜宇光电信息有限公司 | Imaging assembly, touch screen, camera module, intelligent terminal, camera and distance measurement method |
| CN109274854A (en) * | 2018-11-22 | 2019-01-25 | 威海华菱光电股份有限公司 | Image read-out |
| CN111355866B (en) * | 2018-12-20 | 2022-02-08 | 宁波舜宇光电信息有限公司 | Imaging assembly, manufacturing method thereof, camera module and electronic equipment |
| CN110277430A (en) * | 2019-06-26 | 2019-09-24 | 上海天马有机发光显示技术有限公司 | A kind of display panel, preparation method and display device |
| KR20210010681A (en) | 2019-07-17 | 2021-01-28 | 삼성디스플레이 주식회사 | Electroluminescent device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3481408B2 (en) * | 1996-12-05 | 2003-12-22 | 日本電気株式会社 | Contact color image sensor, contact color image sensor unit, and method of manufacturing contact color image sensor |
| JP2011182370A (en) * | 2010-03-04 | 2011-09-15 | Ushio Inc | Light source device |
| CN103760627A (en) * | 2014-01-17 | 2014-04-30 | 广州中国科学院先进技术研究所 | Manufacturing method of multi-channel light filtering micro lens array |
| CN203838722U (en) * | 2014-04-04 | 2014-09-17 | 深圳印象认知技术有限公司 | Liquid crystal terminal equipment and fingerprint acquisition device |
| CN104063704A (en) * | 2014-04-04 | 2014-09-24 | 深圳印象认知技术有限公司 | Image collection device, liquid crystal terminal device and fingerprint and image collection method |
| CN104101940A (en) * | 2014-07-04 | 2014-10-15 | 京东方科技集团股份有限公司 | Light guide plate, backlight source and display device |
| CN204423387U (en) * | 2014-11-14 | 2015-06-24 | 深圳印象认知技术有限公司 | Imaging plate, image acquisition device and terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006004802B4 (en) * | 2006-01-23 | 2008-09-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Image acquisition system and method for producing at least one image capture system |
| TWI382349B (en) * | 2009-01-07 | 2013-01-11 | Gingy Technology Inc | Optical light guide module for optical fingerprint identification system |
-
2014
- 2014-12-18 CN CN201420806765.XU patent/CN204423387U/en active Active
- 2014-12-18 CN CN201410790337.7A patent/CN105760808B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3481408B2 (en) * | 1996-12-05 | 2003-12-22 | 日本電気株式会社 | Contact color image sensor, contact color image sensor unit, and method of manufacturing contact color image sensor |
| JP2011182370A (en) * | 2010-03-04 | 2011-09-15 | Ushio Inc | Light source device |
| CN103760627A (en) * | 2014-01-17 | 2014-04-30 | 广州中国科学院先进技术研究所 | Manufacturing method of multi-channel light filtering micro lens array |
| CN203838722U (en) * | 2014-04-04 | 2014-09-17 | 深圳印象认知技术有限公司 | Liquid crystal terminal equipment and fingerprint acquisition device |
| CN104063704A (en) * | 2014-04-04 | 2014-09-24 | 深圳印象认知技术有限公司 | Image collection device, liquid crystal terminal device and fingerprint and image collection method |
| CN104101940A (en) * | 2014-07-04 | 2014-10-15 | 京东方科技集团股份有限公司 | Light guide plate, backlight source and display device |
| CN204423387U (en) * | 2014-11-14 | 2015-06-24 | 深圳印象认知技术有限公司 | Imaging plate, image acquisition device and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN204423387U (en) | 2015-06-24 |
| CN105760808A (en) | 2016-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105760808B (en) | Imaging plate, image collector and terminal | |
| CN110088768B (en) | Fingerprint recognition device and electronic equipment under screen | |
| US11403869B2 (en) | Optical fingerprint identification apparatus and electronic device | |
| CN106940488B (en) | Display panel and display device | |
| CN109784303B (en) | Display device | |
| KR102440709B1 (en) | Fingerprint identification devices and electronic devices | |
| CN110770746B (en) | Fingerprint identification device and electronic equipment | |
| WO2020132974A1 (en) | Fingerprint recognition apparatus and electronic device | |
| JP2018512635A (en) | Fingerprint palmprint image collector and terminal device with honeycomb structure | |
| CN212749851U (en) | Fingerprint identification device and electronic equipment | |
| US11308725B2 (en) | Touch display device | |
| CN211319246U (en) | Fingerprint identification device, backlight unit, liquid crystal display and electronic equipment | |
| CN109934138B (en) | Display device and mobile terminal | |
| WO2022068129A1 (en) | Optical sensing apparatus for sensing finger biometrics, and electronic apparatus using same | |
| CN110945527B (en) | Fingerprint identification device and electronic equipment | |
| WO2020113396A1 (en) | Optical lens and manufacturing method therefor, fingerprint recognition module, and mobile terminal | |
| WO2021012117A1 (en) | Under-screen optical fingerprint recognition apparatus and system, diffusion film, and liquid crystal display | |
| KR100832073B1 (en) | Optical sensor module | |
| CN210983435U (en) | Optical fingerprint identification subassembly and electronic equipment under screen | |
| TWI759662B (en) | Off-screen image acquisition structure and electronics | |
| CN210721511U (en) | Fingerprint identification device | |
| CN214123368U (en) | Display screen assembly and terminal equipment | |
| CN213365532U (en) | Image sensing module and electronic equipment | |
| CN212112505U (en) | Fingerprint identification device | |
| CN112149544B (en) | Fingerprint imaging assembly, fingerprint imaging module and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 714000 floors 4-6, building 3, additive manufacturing Innovation Center Industrial Park, west section of Chaoyang Street, high tech Industrial Development Zone, Weinan City, Shaanxi Province Applicant after: Weinan impression Cognitive Technology Co., Ltd Address before: 518057 402, AVIC Nanhang building, No. 7, Langshan Road, north high tech Zone, Nanshan District, Shenzhen, Guangdong Applicant before: Shenzhen impression Cognitive Technology Co., Ltd |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |