CN201360289Y

CN201360289Y - Contact type image sensor

Info

Publication number: CN201360289Y
Application number: CNU2009200189874U
Authority: CN
Inventors: 张文波; 王虎岩
Original assignee: Weihai Hualing Opto Electronics Co Ltd
Current assignee: Weihai Hualing Opto Electronics Co Ltd
Priority date: 2009-02-10
Filing date: 2009-02-10
Publication date: 2009-12-09
Anticipated expiration: 2019-02-10

Abstract

The utility model discloses a contact type image sensor for reading false proof marks, which comprises a sensor base plate, wherein a sensitizing part which is arranged in line is arranged on the sensor base plate, a lens is arranged on the upper surface of the sensitizing part on the sensor base plate, one side of the lens is provided with a light source and a framework which can contain the sensor base plate, the lens and the light source, and the upper portion of the framework is provided with a light-penetrated plate which carries a manuscript. The sensor is characterized in that one side of the lens is provided with a group of false distinguishing lenses, the sensor base plate and a light-sensitive integrated circuit which are vertical to the false distinguishing lenses are arranged under the false distinguishing lenses, the false distinguishing lenses incline corresponding to the light-penetrated plate, the included angle between false distinguishing lenses and the light-penetrated plate is 30-60 degrees, when the light of a light source shoots on the manuscript, the light shooting on the manuscript is reflected back to the light-penetrated pate by the manuscript, the reflecting light can contain the light with various angles through reflecting, refracting, scattering and the like, and the light which is basically anastomotic to the mounting angle of the lens can enter the lens and is converged to the sensitizing part, since the two groups of the lenses with different mounting angles are provided, two types of the reflecting light with different angles can be collected for comparing, thereby realizing the aim of distinguishing the false.

Description

Contact-type image sensor

Technical field:

The utility model relates to a kind of image read-out, particularly a kind of contact-type image sensor that can read anti-fake mark.

Background technology:

Fig. 1 is the sectional drawing of existing contact-type image sensor, 1 is illuminating source among the figure, the 5th, lens, the 4th, the photographic department (photosensitive integrated circuit) of receiver lens 5 light that converges, the 3rd, carry the sensor base plate of the photosensitive integrated circuit 4 be arranged in a straight line, the 2nd, hold the framework of light source 1, lens 5,

sensor base plate

3,6 are arranged on the light-passing board of the lift-launch original copy on the

framework

2,7 is original copy, and lens and light-passing board are vertical configuration or basic vertical configuration.

In above-mentioned contact-type image sensor, the light transmission light-passing board 6 that light source 1 sends, shine on the original copy 7 of outside, character area light on the original copy 7 is partially absorbed, and be reflected at the light of other white portion of original copy, because reflection, refraction, factors such as scattering cause these reverberation to comprise the light of various angles, these reverberation pass light-passing board 6, wherein a part is collected by lens 5 with the vertical substantially light of light-passing board 6, shine the photosensitive area of the photographic department 4 on the sensor base plate 3, photographic department 4 be by many photosensitive areas and can will shine the light of each photosensitive area carry out opto-electronic conversion, and the drive circuit of signal output formed, the light that receives converts the signal of telecommunication to after overdrive circuit output, outwards export as image (literal) information, original copy constantly moves, and the image information of being put down in writing on it (literal) will be read continuously.

Have following problem in the above-mentioned contact-type image sensor: the light that light source sends enters light-passing board, shine on the original copy then, original copy reflects away these light, these reverberation are because reasons such as reflection, refraction, scattering can comprise the light of various angles, and wherein just enter lens with the vertical substantially reverberation of light-passing board, be pooled on the photographic department.And we know, many anti-fake marks can be observed different patterns or color from different directions, and some anti-false sign has only with it and becomes certain angle of inclination just can recognize.So existing contact-type image sensor can't read these anti-fake marks.

The utility model content:

Technical problem to be solved in the utility model is: change the angle of accepting of existing contact-type image sensor light, propose a kind of contact-type image sensor that can read anti-fake mark.

The utility model can reach by following measure:

A kind of contact-type image sensor that can read anti-fake mark, comprise sensor base plate, carry the photosensitive integrated circuit that is arranged in a straight line on the sensor base plate, it is photographic department, be provided with lens above the photographic department on the sensor base plate, one side of lens is provided with light source, and the framework that can hold the sensor substrate, lens, light source, the top of framework is provided with the light-passing board that carries original copy, it is characterized in that lens one side is provided with one group of false distinguishing lens, false distinguishing lens below is provided with perpendicular sensor substrate and photosensitive integrated circuit, to imitate reading of pseudo-image.

The relative light-passing board of false distinguishing lens described in the utility model is skewed, the angle of false distinguishing lens and light-passing board at 30-60 ° so that the imitative pseudo-light signal of reflected back can both be better accepted in sensitization.

The utility model, the light that penetrates from light source enters light-passing board, shine on the original copy, shine light on the original copy by original copy reflected back light-passing board, these reverberation are through reflection, refraction, scattering etc., can comprise the light of various angles, and the light that has only the setting angle with lens to coincide substantially just can enter lens and be pooled on the photographic department.Because the lens and the photographic department of two groups of different angles are arranged, so just can accept the reflection ray of two kinds of different angles, obtain different anti-counterfeiting information, and can analyze comparison, reach the purpose of distinguishing true from false.

Description of drawings:

Fig. 1 is the sectional drawing of existing contact-type image sensor.

Fig. 2 is the sectional schematic diagram of a kind of structure of the present utility model.

Mark among the figure: light source 1, framework 2, sensor base plate 3, photographic department 4, lens 5, light-passing board 6, original copy 7, false distinguishing lens 8, false distinguishing sensor substrate 9, the photosensitive integrated circuit 10 of false distinguishing.

Embodiment:

Below in conjunction with accompanying drawing the utility model is further described:

As shown in drawings, a kind of contact-type image sensor that can read anti-fake mark, comprise sensor base plate 3, carry the photosensitive integrated circuit that is arranged in a straight line on the sensor base plate 3, it is photographic department 4, be provided with lens 5 above the photographic department 4 on the sensor base plate 3, one side of lens 5 is provided with light source 1 and can holds the sensor substrate 3, lens 5, the framework 2 of light source 1, the top of framework 2 is provided with the light-passing board 6 that carries original copy, the structure of above-mentioned each parts and mutual downlink connection relation are same as the prior art, this does not give unnecessary details, the framework 2 of lens 5 one sides that is characterised in that of the present utility model is provided with one group of false distinguishing lens 8, false distinguishing lens 8 belows are provided with perpendicular false distinguishing sensor substrate 9 and the photosensitive integrated circuit 10 of false distinguishing, false distinguishing lens 8 relative light-passing boards 6 are skewed, the angle of false distinguishing lens 8 and light-passing board 6 is at 30-60 °, false distinguishing lens 8, photosensitive integrated circuit 10 structures of false distinguishing sensor substrate 9 and false distinguishing and mutual downlink connection relation and lens 5, the structure of sensor substrate 3 and photosensitive integrated circuit 4 and interconnected relationship structure, this does not give unnecessary details.

The utility model is provided with

lens

5 and 8 liang of group lens of false distinguishing lens, respectively at placing with 6 one-tenth different angles of light-passing board, these two angles read the needed angle of anti-counterfeiting mark exactly, just can read anti-counterfeiting information different in the anti-counterfeiting mark by these two angles, reach the purpose of distinguishing true from false, the setting of angle is to be provided with according to reading the required angle of anti-counterfeiting mark, wherein the sensor base plate 3 of the photosensitive integrated circuit 4 of the lift-launch that lens 5 are corresponding with it is perpendicular, so that photographic department can better be accepted the light signal of reflected back, the light that the utility model light source 1 sends, shine on the original copy 7 after entering light-passing board 6, original copy 7 reflects back light, through reflection, refraction, the angle that these light such as scattering penetrate will become more mixed and disorderly, and the needed reading angular of anti-counterfeiting mark is also contained in the inside.

The utility model is adjusted to lens the needed reading angular of anti-counterfeiting mark exactly, and the light that reflects of anti-counterfeiting mark will be collected by false distinguishing lens 8 like this, shine the photosensitive area of the photographic department 10 on the sensor base plate 9.Photographic department 4 be by many photosensitive areas and can will shine the light of each photosensitive area carry out opto-electronic conversion, and the drive circuit of signal output is formed, the light of reception converts the signal of telecommunication to after overdrive circuit output is outwards exported as image (literal) information.Original copy constantly moves, and anti-counterfeiting information also can be read, thereby reaches the purpose of distinguishing true from false.

Claims

1, a kind of contact-type image sensor, comprise sensor base plate, carry the photographic department that is arranged in a straight line on the sensor base plate, be provided with lens above the photographic department on the sensor base plate, one side of lens is provided with light source, and the framework that can hold the sensor substrate, lens, light source, and the top of framework is provided with the light-passing board that carries original copy, it is characterized in that lens one survey is provided with one group of false distinguishing lens, false distinguishing lens below is provided with perpendicular sensor substrate and photosensitive integrated circuit.

2, contact-type image sensor according to claim 1 is characterized in that the relative light-passing board of false distinguishing lens is skewed, and the angle of false distinguishing lens and light-passing board is at 30-60 °.