CN202736154U - Optical conductor of contact-type image sensor - Google Patents
Optical conductor of contact-type image sensor Download PDFInfo
- Publication number
- CN202736154U CN202736154U CN 201220451437 CN201220451437U CN202736154U CN 202736154 U CN202736154 U CN 202736154U CN 201220451437 CN201220451437 CN 201220451437 CN 201220451437 U CN201220451437 U CN 201220451437U CN 202736154 U CN202736154 U CN 202736154U
- Authority
- CN
- China
- Prior art keywords
- light
- strip
- groove
- optical conductor
- light guide
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Facsimile Heads (AREA)
Abstract
The utility model relates to an optical conductor of a contact-type image sensor. The optical conductor is characterized in that a light guide strip with high transmittance is arranged, wherein the appearance of the light guide strip is a simple cuboid with few corner angular sides, the cross section of the light guide strip is of a square, rectangular or round structure, the light guide strip at least comprises a light emitting surface and a light reflection layer, two end surfaces of the light guide strip are smooth to form smooth minute surfaces, two ends of the light guide strip are equipped with illuminants, and the illuminants directly contact with the end surfaces of the light guide strip. A groove structure for accommodating the optical conductor is arranged in a framework, wherein the optical conductor is fixed in the groove of the framework via channel sections of the framework, the light emitting surface of the optical conductor orientates to a notch of the groove, the light reflection layer of the optical conductor is arranged on a side surface of the light guide strip which orientates to a wall or bottom of the groove, and the light reflection layer is a printing ink layer. According to the utility model, an optical conductor with good homogeneity and high output stability can be flexibly and rapidly prepared.
Description
Technical field
The utility model relates to a kind of image read-out, specifically the contact-type image sensor catheter body of the good stability of low, luminous evenly, the light of a kind of cost.
Background technology
We know, development along with IT industry and related information technology, critical piece as the image information input, the application of contact-type image sensor is also thereupon more and more wide, such as scanner, apparatus for marking examinating paper, all-in-one multifunctional machine etc., also obtain using more and more widely in the finance device field in recent years, such as paper currency sorter, paper money counter, the ATM automatic teller machine, cash inspecting machine, the aspects such as special-purpose bill scanning fake-identifying instrument, luminescent system as contact-type image sensor, existing contact-type image sensor adopts irregular, polygonal light conductor, can not use as transmitted light source, such as Fig. 1, the light source of touch sensor oneself band can only provide the reflection ray of 45 ° of directions, the needed important anti-counterfeiting technology (watermark of information as on bank note and check, using of client, the feature line, special material, magnetic distribution fluorescent etc.) can only detect a part, so just brought very large uncertainty to discriminating, it is particularly important that transmitted light source seems.
Irregular polygonal light conductor, corner angle with a plurality of squares, on manufacture craft, high requirement has been proposed all for the expansion and contraction of the degree of accuracy of mould, material and Shooting Technique condition etc., wherein deviation appears in any one link, all may cause the transmittance of light conductor to reduce, affect the homogeneity of contact-type image sensor light source, the electric signal of output just changes, cause the unintelligible of image scanning, the light conductor that uses at present, manufacture difficulty is high, and output stability is poor, and its performance can not satisfy the client to the requirement of image definition.
Summary of the invention
[0003] the purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of cost low, with short production cycle, can flexibly and fast produce the light conductor that homogeneity is good, output stability is high.
The utility model can reach by following measure:
The contact-type image sensor light conductor, it is characterized in that being provided with the high light transmittance light-strip, the light-strip profile is the few simple rectangular parallelepiped of corner angle limit number, the light-strip cross section is square, rectangle, circular structure, light-strip comprises an exiting surface and a reflection layer at least, two end face surface of light-strip are smooth, form smooth minute surface, there is luminophor at the two ends of light-strip, luminophor directly contacts with the end face of light-strip, framework is provided with the groove structure of placing light conductor, draw-in groove by framework is fixed on light conductor in the groove of framework, the light conductor exiting surface is towards the groove notch, and light conductor reflection of light layer is located on the light-strip side of groove cell wall or bottom land, and light conductor reflection of light layer is ink lay.
Light conductor reflection of light layer described in the utility model can by the mode printed ink of ink printing, also can consist of the reflection horizon by machining mode machined grooves.
As mentioned above, there is the existence of corner angle just to occur easily to rub to damage, the utility model is by the planform of the new light conductor of design, the light conductor cross section is square, rectangle, circular structure, its corner angle limit is lacked a lot than irregular gengon, can reduce the discarded rate in assembling process, the minimizing on corner angle limit also can reduce the difficulty of die sinking, the light-strip cross section is square, rectangle, circular structure, can increase the effective coverage that light-strip contacts with luminophor, the light that luminophor sends enters light-strip fully, compared with prior art, not only can significantly improve the stability of contact-type image sensor output, can also obtain more scanning information, be with a wide range of applications.
Description of drawings
Fig. 1 is a kind of schematic cross-section of existing contact-type image sensor.
Fig. 2 is a kind of structural representation of utility model.
Fig. 3 is that the utility model cross section is a kind of schematic cross-section of circular light conductor.
Fig. 4 is that the utility model cross section is a kind of schematic cross-section of square catheter body.
Fig. 5 is that the utility model cross section is a kind of schematic cross-section of water-drop-shaped catheter body.
Embodiment:
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 2, a kind of contact-type image sensor light conductor, be provided with high light transmittance light-strip 1, light-strip 1 profile is the few simple rectangular parallelepiped of corner angle limit number, the light-strip cross section is square, rectangle, circular structure, light-strip 1 comprises an exiting surface and a reflection layer at least, two end face surface of light-strip 1 are smooth, form smooth minute surface, there is luminophor 3 at the two ends of light-strip 1, luminophor 3 directly contacts with the end face of light-strip 1, framework 2 is provided with the groove structure of placing light conductor, draw-in groove 4 by framework is fixed on light conductor in the groove of framework 2, the light conductor exiting surface is towards the groove notch, light conductor reflection of light layer is located on the light-strip side of groove cell wall or bottom land, light conductor reflection of light layer is ink lay, light-strip 1 can be processed by the mode of mold injection molding, the molding cycle of mold injection is short, energy one-shot forming complex contour, precision size, goods with inserts, and production efficiency is high, easily be automated, can satisfy the needs of batch production, the contour structures of light conductor is guaranteeing maximization, under the prerequisite of stable output light flux, accomplish the design that simplifies the structure as far as possible, light conductor is the rectangular parallelepiped of a rule, the cross section is square, the concrete symmetry of the structure of light conductor, the impact of the asymmetric product internal stress that causes in the time of can reducing mould molding, reduce technology difficulty, the width of cloth length of light conductor should be made A3 amplitude or longer, can therefrom intercept use, satisfies the needs of different length light source, avoid the repeatability of die sinking, reduce production costs.Luminophor 3 can be placed at an end of light-strip 1, also can adopt two ends to place simultaneously, increase the brightness of light source, the end face of conduit bar 1 is unique with luminophor 3, the part that directly contacts, the quality of end face degree of roughness is determining stability and the homogeneity of the light of whole light conductor output, the surfaceness of end face is less, the light that enters in the light conductor is just more, the light signal of contact-type image sensor output is just stronger, the image of scanning is just more clear, the surfaceness of end face is larger, and the light that enters in the light conductor is just fewer, and the light signal of contact-type image sensor output is just more weak, the image of scanning will blur, when injection mould processing, two end faces of light conductor will be done mirror process, and its surfaceness should be less than 0.02.The injected plastics material of light-strip 1 adopts the PMMA(polymethylmethacrylate), PMMA has good optical characteristics and gasproof marquis variation characteristic, the light transmission and the dimensional structure that guarantee light conductor do not change along with the conversion of temperature, for contact-type image sensor provides stable light source, the penetrability of PMMA white light is up to 92%, has very low birefringence, low price, lightweight, reduce cost and the weight of contact-type image sensor, the contact-type image sensor framework is as the carrier of catheter body, should accomplish that in design size is accurate, rocking can not appear in light conductor, the phenomenon that comes off, as shown in the figure, the groove of laying light conductor is arranged in the framework, light conductor is placed in the groove, the end face of light-strip 1 and luminophor 3 close contacts, there is not the slit, the phenomenon that light leak can not occur, the center line of groove and the center of light conductor, the center of luminophor point-blank, the luminous energy that is sent by luminophor 3 enters in the light-strip 1 fully, farthest utilize light source, there is the fixedly draw-in groove of light conductor the both sides of groove, guarantee light conductor on the center line of light source, can double swerve, framework 2 can adopt the lighttight material of white to make, the framework of white has very strong reflex to the light of irradiation, can reduce to greatest extent the loss of light.A side printing reflection of light layer of light conductor, its corresponding side is as the exiting surface of light, the reflection of light layer has high emissivity, the light that luminophor can be sent emits from exiting surface fully along directions X, the center line of reflection of light layer is positioned at the center of side and the central lines of light source, guarantees that contact-type image sensor is uniform in the output of horizontal direction.
Light-strip 1 is designed to cylindrical or rectangular parallelepiped, can Effective Raise the efficient of printing reflection of light layer, in the process of printing, do not need deliberately go to select concrete side, as long as according to drawing with the image printing of object to light conductor, its corresponding side is exiting surface.
Such as Fig. 3, light-strip 5 profiles are designed to right cylinder, and its cross section is circular, and geometry is told us, it is large that the area of other any shapes of Area Ratio of circle is wanted, therefore, if the material of same quantity is arranged, wish to make the thing of volume maximum, obviously, circle is only shape.Light-strip adopts cylindrical structure, can greatly reduce production costs, and improves the competitive power of product.Columniform design, the light that luminophor is sent farthest enters light-strip, by the reflection of light layer, shines on the original copy, improves the output of contact-type image sensor, obtains clearly image.Columniform design also has a lot of benefits to reduce producing discarded rate because right cylinder has a good mechanical characteristic, be exactly it everywhere suffered power be very symmetrically.Can guarantee that like this surface of contact is not fragile.If light-strip is other shapes beyond the circle, they must exist corner angle and plane.It is the easiest place that rubs and damage of will occurring in the vertical process of printing emission layer or product group that depositing of corner angle arranged.
Such as Fig. 4, according to the needs of product, light-strip 7 also can be designed as rectangular parallelepiped, and its cross section is rectangle or square, and rectangle or square have the high characteristics of space availability ratio, as shown in the figure.The luminescence chip 6 of luminophor adopts adopting surface mounted LED, in order to guarantee that the light that luminophor sends can enter luminophor fully, light-strip 7 cross sections should be greater than the area of LED needs, simultaneously in order to reduce contact-type image sensor as far as possible, reduce the difficulty of producing, enhance productivity, the light conductor profile reduces the corner angle limit as far as possible, and being designed to the cross section is rectangle or foursquare rectangular parallelepiped.The fillet of R1 is made on its corner angle limit, and round edge guarantees smooth, the generation that can reduce friction to a certain extent and damage.
As shown in Figure 5, light-strip 8 is designed to water-drop-shaped, the volume of light-strip reduces, can make the miniaturization of contact-type image sensor physical dimension, more simply install, take the device space still less, for the application of touch sensor on more equipment, feasibility is provided, satisfy growing demand, the design of water-drop-shaped can guarantee the high brightness of light-strip 8, evenly output, its exiting surface is semicircular structure, is similar to the convex lens principle, and the light of dispersing that emission layer can be reflected becomes directional light and exports uniformly, use the touch sensor of water-drop-shaped light-strip, not only have simple in structure, volume is little, and output of products brightness is high, and the design of water-drop-shaped light-strip die sinking difficulty on making is low, produce easy for installationly, discarded rate is low.
Traditional CIS contact-type image sensor only adopts light source irradiation bank note and the check that itself carries, the anti-counterfeiting information that reflects only some, differentiate so just for bank note and check and brought very large uncertainty, light conductor cost of the present utility model is low, with short production cycle, crossing sample both can solve contact-type image sensor and use its automatic light source can only detect the technical barrier of a part of anti-counterfeiting information, fully guaranteed the application of contact-type image sensor in the false proof industry of finance, also help us under the prerequisite that guarantees image definition, obtain more useful image information.
Claims (2)
1. contact-type image sensor light conductor, it is characterized in that being provided with the high light transmittance light-strip, the light-strip profile is the few simple rectangular parallelepiped of corner angle limit number, the light-strip cross section is square, rectangle or circular structure, light-strip comprises an exiting surface and a reflection layer at least, two end face surface of light-strip are smooth, form smooth minute surface, there is luminophor at the two ends of light-strip, luminophor directly contacts with the end face of light-strip, framework is provided with the groove structure of placing light conductor, draw-in groove by framework is fixed on light conductor in the groove of framework, the light conductor exiting surface is towards the groove notch, and light conductor reflection of light layer is located on the light-strip side of groove cell wall or bottom land, and light conductor reflection of light layer is ink lay.
2. a kind of contact-type image sensor light conductor according to claim 1 is characterized in that the light conductor reflection layer is that cell wall or bottom land at groove is provided with the reflection horizon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220451437 CN202736154U (en) | 2012-09-06 | 2012-09-06 | Optical conductor of contact-type image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220451437 CN202736154U (en) | 2012-09-06 | 2012-09-06 | Optical conductor of contact-type image sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736154U true CN202736154U (en) | 2013-02-13 |
Family
ID=47661832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220451437 Expired - Fee Related CN202736154U (en) | 2012-09-06 | 2012-09-06 | Optical conductor of contact-type image sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202736154U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475797A (en) * | 2013-07-31 | 2013-12-25 | 威海华菱光电股份有限公司 | Ultraviolet-light linear light source and image reading device |
| CN103968303A (en) * | 2014-04-30 | 2014-08-06 | 威海华菱光电股份有限公司 | Light-emitting device and image sensor |
| CN104079766B (en) * | 2013-03-28 | 2017-04-12 | 京瓷办公信息系统株式会社 | Illumination device, image reading apparatus, and image forming apparatus |
-
2012
- 2012-09-06 CN CN 201220451437 patent/CN202736154U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079766B (en) * | 2013-03-28 | 2017-04-12 | 京瓷办公信息系统株式会社 | Illumination device, image reading apparatus, and image forming apparatus |
| CN103475797A (en) * | 2013-07-31 | 2013-12-25 | 威海华菱光电股份有限公司 | Ultraviolet-light linear light source and image reading device |
| CN103968303A (en) * | 2014-04-30 | 2014-08-06 | 威海华菱光电股份有限公司 | Light-emitting device and image sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202736154U (en) | Optical conductor of contact-type image sensor | |
| CN103308149B (en) | Machine vision is synchronously focused scanning type laser vibration detecting device | |
| CN108332708A (en) | Laser leveler automatic checkout system and detection method | |
| CN103091738A (en) | Wide angle pyroelectric infrared Fresnel lens | |
| CN102200594A (en) | Combined cone lens for generating long-distance diffraction-free Bessel beam | |
| CN101975560A (en) | Optical detection method for parallelism of planar array CCD target surface and installation locating surface | |
| CN105157601A (en) | Single-camera three-dimensional image measuring instrument | |
| CN103926645A (en) | Light guide plate, backlight module and display device | |
| CN108088381A (en) | A kind of contactless minim gap method for measuring width based on image procossing | |
| CN107504897A (en) | Non-contact type displacement measurement method and its measurement apparatus based on spectral wavelength | |
| CN203605907U (en) | Part detection system | |
| CN202339419U (en) | Optical element producing non-diffracting ray structured light | |
| CN101963492B (en) | Displacement detecting device based on inner reflector of elliptic cylinder | |
| CN205507819U (en) | Grating two -dimensional code that can squint | |
| CN106289092A (en) | Optical devices and light-emitting device thereof | |
| CN203072041U (en) | Contact image sensor | |
| CN102882007B (en) | Microwave slab Fresnel lens | |
| CN104792733B (en) | Quick calibration module and application | |
| CN101533112A (en) | Optical lens with free curved surface | |
| CN202093325U (en) | Imaging box and imaging device | |
| CN207300162U (en) | Contactless displacement measurement device based on spectral wavelength | |
| CN202853582U (en) | Binocular microscopic three-dimensional measuring apparatus | |
| CN102706444B (en) | Method for measuring topological charges of optical vortex | |
| CN214121076U (en) | CCD laser measurement sensor | |
| CN103335279B (en) | Light-emitting device and imageing sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20210906 |