CN109495667A - Coaxial light irradiation type contact image sensor module - Google Patents
Coaxial light irradiation type contact image sensor module Download PDFInfo
- Publication number
- CN109495667A CN109495667A CN201811553167.5A CN201811553167A CN109495667A CN 109495667 A CN109495667 A CN 109495667A CN 201811553167 A CN201811553167 A CN 201811553167A CN 109495667 A CN109495667 A CN 109495667A
- Authority
- CN
- China
- Prior art keywords
- light irradiation
- type contact
- reflecting mirror
- image sensor
- contact image
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
- H04N1/02855—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array in combination with a light guide, e.g. optical fibre, glass plate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
- H04N1/0286—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array in combination with a light integrating, concentrating or defusing cavity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/02885—Means for compensating spatially uneven illumination, e.g. an aperture arrangement
- H04N1/0289—Light diffusing elements, e.g. plates or filters
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
The present invention provides coaxial light irradiation type contact image sensor modules, including shell, the sensor being mounted on shell, cylindrical lenses above sensor, above cylindrical lenses and the half-reflecting mirror of inclined arrangement, glass above half-reflecting mirror, the scanning object being placed on glass, the light source positioned at half-reflecting mirror side.Coaxial light irradiation type contact image sensor module provided by the invention, the light of light source transmitting is refracted to scanning object surface by half-reflecting mirror, refraction light vertically irradiates scanning object, scanning object image is reflected successively again by half-reflecting mirror, cylindrical lenses reach sensor, scanning object surface can clearly appear from out, it is not influenced by surface reflection, scan the more clear easily resolution of effect, it avoids judging by accident, reach the principle of axis light, solve the problems, such as scanning object there are image is unsharp due to reflective on surface, it can reach the function for the vertical light irradiation scanning that reflection light irradiation type contact image sensor module is not achieved.
Description
Technical field
The present invention relates to sensor module technical fields, more particularly to coaxial light irradiation type contact image sensor mould
Block.
Background technique
As shown in Figure 1 is reflection light irradiation type contact image sensor module in the prior art, uses 45 degree of angles
Reflected light go irradiation scanning object, scanning object be transmitted to contact image sensor again after reflected light is irradiated, if scanning object
It is bright face metal, it will usually because the illumination issues at 45 degree of angles of reflected light, lead to not the front surface of scanning to scanning object, cause
There are the unsharp problems of image due to reflective on the surface of scanning object.Reflection light irradiation type contact image sensor module at present
Be unable to reach vertical light irradiation, can only the irradiation of the 45 degree angles in side, cause to scan the surface of object because 45 degree of corner reflection light irradiate can not
Scan clear, axis light irradiation is the radiation modality using an angle of 90 degrees, can improve and cause because of the difference of light source radiating angle
The unsharp problem of image.
In view of this, it is necessary to sensor module in the prior art be improved, to solve the above problems.
Summary of the invention
It is an object of the invention to disclose coaxial light irradiation type contact image sensor module, the light of light source transmitting passes through
Half-reflecting mirror is refracted to scanning object surface, and refraction light vertically irradiates scanning object, and scanning object image is reflected successively again through more than half anti-
Mirror, cylindrical lenses arrival sensor are penetrated, scanning object surface can clearly appear from out, not influenced by surface reflection, and scanning effect is more
Add clearly easily resolution, avoid judging by accident, reach the principle of axis light, solve scanning object there are images due to reflective on surface
Unsharp problem can reach the vertical light irradiation scanning that reflection light irradiation type contact image sensor module is not achieved
Function.
To achieve the above object, the present invention provides coaxial light irradiation type contact image sensor module, including shell,
The sensor being mounted on shell, the cylindrical lenses above sensor, above cylindrical lenses and inclined arrangement
Half-reflecting mirror, the glass above half-reflecting mirror, the scanning object being placed on glass, the light source positioned at half-reflecting mirror side；
The light of the light source transmitting is refracted to scanning object surface by half-reflecting mirror, and scanning object image reflects again to pass through again by half-reflecting mirror
It crosses cylindrical lenses and reaches sensor.
In some embodiments, the half-reflecting mirror tilt angle is 30-60 °.
In some embodiments, the half-reflecting mirror tilt angle is 45 °.
In some embodiments, the light source is arranged vertically.
In some embodiments, the light source is LED array light source.
In some embodiments, diffuser plate is equipped between the light source and half-reflecting mirror.
It in some embodiments, further include PCB substrate, the sensor is arranged in PCB substrate.
In some embodiments, the sensor is sensing wafer.
Compared with prior art, the beneficial effects of the present invention are: coaxial light irradiation type contact-type image provided by the invention
The light of sensor module, light source transmitting is refracted to scanning object surface by half-reflecting mirror, and refraction light vertically irradiates scanning object, sweeps
It retouches object image to be reflected again successively by half-reflecting mirror, cylindrical lenses arrival sensor, scanning object surface can clearly appear from out, no
It is influenced by surface reflection, scanning effect is more clear easily to be differentiated, and is avoided judging by accident, is reached the principle of axis light, solve and sweep
Retouching the surface of object, there are the unsharp problems of image due to reflective, can reach reflection light irradiation type contact image sensor module
The function for the vertical light irradiation scanning being not achieved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of reflection light irradiation type contact image sensor module in the prior art；
Fig. 2 is the structural schematic diagram of coaxial light irradiation type contact image sensor module shown in the present invention；
Fig. 3 is the structural schematic diagram of coaxial light irradiation type contact image sensor module shown in the present invention.
Specific embodiment
The present invention is described in detail for each embodiment shown in reference to the accompanying drawing, but it should be stated that, these
Embodiment is not limitation of the present invention, those of ordinary skill in the art according to these embodiments made by function, method,
Or equivalent transformation or substitution in structure, all belong to the scope of protection of the present invention within.
Coaxial light irradiation type contact image sensor module as shown in Figures 2 and 3, including shell 1, are mounted on shell 1
On sensor 8, the cylindrical lenses 7 above sensor 8, above cylindrical lenses 7 and the half reflection of inclined arrangement
Mirror 6, the glass 3 above half-reflecting mirror 6, the scanning object 2 being placed on glass 3, the light source 4 positioned at 6 side of half-reflecting mirror.
It further include PCB substrate 9, the sensor 8 is arranged in PCB substrate 9.The sensor 8 is sensing wafer.PCB
Substrate 9, cylindrical lenses 7, half-reflecting mirror 6, glass 3, light source 4, diffuser plate 5 are installed on shell 1.
6 tilt angle of half-reflecting mirror is 30-60 °, and in the present embodiment, 6 tilt angle of half-reflecting mirror is
45°.The light source 4 is arranged vertically, so that incident ray is anti-with half when the light for issuing light source 4 is radiated on half-reflecting mirror 6
The angle for penetrating mirror 6 is 45 °, and the angle of reflection light and half-reflecting mirror 6 is also 45 °, to keep reflection light vertical straight up
Ground irradiation scanning object 2, reaches the principle of axis light.The light source 4 is LED array light source.Between the light source 4 and half-reflecting mirror 6
Equipped with diffuser plate 5, it acts as light source is uniformly projected on half-reflecting mirror 6.
The light that the light source 4 emits is refracted to scanning 2 surface of object by half-reflecting mirror 6, and refraction light vertically irradiates scanning
Object 2 reaches the principle of axis light, solves the problems, such as that the surface of scanning object 2 there are image is unsharp, can reach anti-due to reflective
Penetrate the function for the vertical light irradiation scanning that light irradiation type contact image sensor module is not achieved.
Scanning 2 image of object reflects again successively reaches sensor 8 by half-reflecting mirror 6, cylindrical lenses 7, and scanning 2 surface of object can
It clearly appears from out, not influenced by surface reflection, scanning effect is more clear easily to be differentiated, and avoids judging by accident.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. coaxial light irradiation type contact image sensor module, which is characterized in that including shell (1), be mounted on shell (1)
Sensor (8), the cylindrical lenses (7) being located above sensor (8) are located above cylindrical lenses (7) and inclined arrangement
It is anti-to be located at half for half-reflecting mirror (6), the glass (3) being located above half-reflecting mirror (6), the scanning object (2) being placed on glass (3)
Penetrate the light source (4) of mirror (6) side；
The light of light source (4) transmitting is refracted to scanning object (2) surface by half-reflecting mirror (6), and scanning object (2) image reflects again
Sensor (8) are reached using cylindrical lenses (7) by half-reflecting mirror (6).
2. coaxial light irradiation type contact image sensor module according to claim 1, which is characterized in that described half is anti-
Penetrating mirror (6) tilt angle is 30-60 °.
3. coaxial light irradiation type contact image sensor module according to claim 2, which is characterized in that described half is anti-
Penetrating mirror (6) tilt angle is 45 °.
4. coaxial light irradiation type contact image sensor module according to claim 3, which is characterized in that the light source
(4) it is arranged vertically.
5. coaxial light irradiation type contact image sensor module according to claim 4, which is characterized in that the light source
It (4) is LED array light source.
6. coaxial light irradiation type contact image sensor module according to claim 1, which is characterized in that the light source
(4) diffuser plate (5) are equipped between half-reflecting mirror (6).
7. coaxial light irradiation type contact image sensor module according to claim 1, which is characterized in that further include
PCB substrate (9), the sensor (8) are arranged on PCB substrate (9).
8. coaxial light irradiation type contact image sensor module according to claim 7, which is characterized in that the sensing
Device (8) is sensing wafer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553167.5A CN109495667A (en) | 2018-12-18 | 2018-12-18 | Coaxial light irradiation type contact image sensor module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553167.5A CN109495667A (en) | 2018-12-18 | 2018-12-18 | Coaxial light irradiation type contact image sensor module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109495667A true CN109495667A (en) | 2019-03-19 |
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ID=65710725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811553167.5A Pending CN109495667A (en) | 2018-12-18 | 2018-12-18 | Coaxial light irradiation type contact image sensor module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109495667A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021016758A1 (en) * | 2019-07-26 | 2021-02-04 | 深圳市民德电子科技股份有限公司 | Image recognition and reading device |
| WO2022267863A1 (en) * | 2021-06-22 | 2022-12-29 | 威海华菱光电股份有限公司 | Contact-type image sensor |
-
2018
- 2018-12-18 CN CN201811553167.5A patent/CN109495667A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021016758A1 (en) * | 2019-07-26 | 2021-02-04 | 深圳市民德电子科技股份有限公司 | Image recognition and reading device |
| WO2022267863A1 (en) * | 2021-06-22 | 2022-12-29 | 威海华菱光电股份有限公司 | Contact-type image sensor |
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