CN202696734U - Contact type image sensor - Google Patents
Contact type image sensor Download PDFInfo
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- CN202696734U CN202696734U CN201220367308.6U CN201220367308U CN202696734U CN 202696734 U CN202696734 U CN 202696734U CN 201220367308 U CN201220367308 U CN 201220367308U CN 202696734 U CN202696734 U CN 202696734U
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- type image
- image sensor
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- temperature
- temperature sensor
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Abstract
The utility model discloses a contact type image sensor with a temperature detection function. The contact type image sensor comprises a frame body for supporting, wherein an optical lens is arranged in the frame body; the side face of the optical lens is provided with a light source; a transparent plate is arranged above the lens; and a circuit substrate is arranged below the lens, and is provided with a photoelectric conversion chip and a signal output component. The contact type image sensor is characterized by being provided with a temperature sensor, wherein a signal acquired by using the temperature sensor is connected to a peripheral circuit through the signal output component. In the working process of the contact type image sensor, the temperature sensor can be used for detecting the temperatures of the contact type image sensor and the surrounding environment thereof; an appropriate augmenting factor is adopted, so that the accuracy of image processing is ensured; and meanwhile, warns are given when the contact type image sensor and the surrounding environment thereof surpass rated temperatures.
Description
Technical field
The present invention relates to sensor technical field, is a kind of at the contact-type image sensor with temperature sensor specifically.
Background technology
We know, the operation principle of existing contact-type image sensor as shown in Figure 1, it is provided with passive framework 1, be provided with optical lens 2 in the framework 1, one side of optical lens 2 is provided with light source 3, the top of lens 2 is provided with transparent panel 4, the below of lens 2 is provided with wiring board 6, be positioned on the wiring board 6 lens 2 under be provided with opto-electronic conversion chip 5, opto-electronic conversion chip 5 top surfaces are provided with the sensitization form, inside is provided with circuit, and the function of opto-electronic conversion chip 5 is to convert light signal to the signal of telecommunication, and the back side of wiring board 6 is provided with signal output component 7.During image read-out work, the light that light source 3 sends, seeing through transparent panel 4 shines on the original copy, image on the original copy, literal etc. produce reverberation, these reverberation pass transparent panel 4 again, the part reverberation enters optical lens 2, shine on the sensitization form of opto-electronic conversion chip 5 from optical lens 2 other ends reverberation out, opto-electronic conversion chip 5 converts the light signal that receives to the signal of telecommunication by signal output component 7 outputs, original copy is constantly mobile, the image of putting down in writing on it, Word message will be read continuously, finishes the image information scanning process of original copy.
Along with the application at special dimensions such as finance of the fast development of integrated circuit technique and contact-type image sensor, the volume of electronic device and contact-type image sensor is more and more less, the heat density of integrated device and contact-type image sensor inside is increasing, and the reliability of opto-electronic conversion chip operation is very responsive to temperature; And during contact-type image sensor work, evolution of heat when luminous element is luminous, cause the temperature of luminous element itself slowly to raise, along with the rising of temperature, the brightness meeting of luminous element changes, and the heat that luminous element sends can make the transmission conductor of light expand, affect transmission conductor to the conductive performance of light, existing contact-type image sensor can not in time be made corresponding revisal when above-mentioned variation occurs Yin Wendu, cause the as a result serious distortion of scanning, the accuracy of impact scanning; Environment generation acute variation around, excess Temperature or cross when low, the chip operation on the contact-type image sensor can abnormals, affect quality of scanning, and existing contact-type image sensor can't provide caution.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of contact-type image sensor with temperature detecting function is provided.
The present invention can reach by following measure:
A kind of contact-type image sensor, comprise passive framework, be provided with optical lens in the framework, the side of optical lens is provided with light source, the below of lens is provided with circuit base plate, the top of lens is provided with transparent panel, be positioned on the circuit base plate lens under be provided with the opto-electronic conversion chip, the back side of circuit base plate is provided with signal output component, it is characterized in that being provided with temperature sensor at contact-type image sensor, the signal that temperature sensor collects is connected on the peripheral circuit by signal output component, when contact-type image sensor is worked, the light transmission transparent panel that light source sends shines on the original copy, a part of reverberation on the scan manuscript sees through transparent panel and enters optical lens, shine on the opto-electronic conversion chip from optical lens other end reverberation out, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication, export by signal output component, this moment, temperature sensor can connect the temperature of measuring zone of living in fast, temperature parameter is exported by signal output component, image processing system can adopt suitable augmenting factor according to the temperature parameter that obtains, the signal of telecommunication to the conversion of opto-electronic conversion chip carries out revisal, obtains more accurately image scanning result; When the temperature parameter abnormal of temperature sensor output, system can detect and make a response fast, interrupts the work of contact-type image sensor, perhaps sends wait instruction, equitemperature recover normal after, work on.
Temperature sensor among the present invention can be arranged on the light source place of contact-type image sensor, with the temperature of detection light source, revisal is carried out in the variation of light source.
Temperature sensor among the present invention can be arranged on the front of the circuit base plate of contact-type image sensor, to detect the temperature of opto-electronic conversion chip, revisal is carried out in the variation of opto-electronic conversion chip.
Temperature sensor among the present invention can be arranged on the back side of the circuit base plate of contact-type image sensor, to detect the temperature of surrounding environment, variations in temperature to surrounding environment is carried out revisal, and the user can freely select sensor model number, the replacing convenience as required.
Temperature sensor among the present invention can be arranged on the transparent panel of contact-type image sensor, prevents that original copy from passing through the transparent panel surface, and friction generates heat repeatedly, excess Temperature.
Temperature sensor among the present invention can be that a kind of its output signal varies with temperature and the transducer that changes, such as thermistor, integrated temperature sensing chip etc., the different different temperature parameters of temperature output, image processing system can adopt suitable augmenting factor according to different temperature parameters.
Temperature sensor among the present invention can be a kind of switching device that comes control circuit conducting and disconnection with variations in temperature, such as thermal protector etc., automatic cut-off power during excess Temperature.
Temperature sensor among the present invention can link to each other with the warning device of contact-type image sensor, in time sends warning during temperature anomaly.
The invention has the beneficial effects as follows, when contact-type image sensor was worked, temperature sensor can detect the temperature of contact-type image sensor and surrounding environment thereof, adopted suitable augmenting factor, guaranteed the accuracy that image is processed; Provide simultaneously caution when contact-type image sensor and the over proof temperature of surrounding environment thereof, interrupt the work of contact-type image sensor, perhaps send wait instruction, equitemperature works on after recovering normally.
Description of drawings
Fig. 1 is the generalized section of existing contact-type image sensor.
Fig. 2 is the schematic diagram of the embodiment of the invention 1.
Fig. 3 is the schematic diagram of the embodiment of the invention 2.
Fig. 4 is the schematic diagram of the embodiment of the invention 3.
Fig. 5 is the schematic diagram of the embodiment of the invention 4.
Fig. 6 is the schematic diagram of the embodiment of the invention 5.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Embodiment 1: as shown in Figure 2, contact-type image sensor comprises passive framework 1, be provided with optical lens 2 in the framework 1, one side of optical lens 2 is provided with light source 3, the framework 1 at the adjacent regions place of light source 3 is provided with temperature sensor 8, the top of lens 2 is provided with transparent panel 4, the below of lens 2 is provided with wiring board 6, the back side of wiring board 6 is provided with signal output component 7, the front of wiring board 6 be positioned at lens 2 under be provided with opto-electronic conversion chip 5, opto-electronic conversion chip 5 top surfaces are provided with the sensitization form, and inside is provided with circuit, and the function of opto-electronic conversion chip 5 is to convert light signal to the signal of telecommunication.When contact-type image sensor is worked, the light transmission transparent panel 4 that light source 3 sends shines on the original copy, a part of reverberation on the scan manuscript sees through transparent panel 4 and enters optical lens 2, shine on the opto-electronic conversion chip 5 from optical lens other end reverberation out, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication, by signal output component 7 outputs.Carrying out along with scanning, the temperature of light source 3 raises gradually, light source 3 luminosity under different temperature is different, this moment, temperature sensor 8 energy fast detecting went out the temperature of light source 3, temperature parameter is exported by signal output component 7, image processing system can adopt suitable augmenting factor according to the temperature parameter that obtains, the signal of telecommunication to the conversion of opto-electronic conversion chip carries out revisal, obtain accurately image scanning result, the structure of above-mentioned each part and the interconnected relationship between them are same as the prior art, and this does not give unnecessary details.
Embodiment 2: as shown in Figure 3, contact-type image sensor comprises passive framework 1, be provided with optical lens 2 in the framework 1, one side of optical lens 2 is provided with light source 3, the top of lens 2 is provided with transparent panel 4, the below of lens 2 is provided with wiring board 6, the back side of wiring board 6 is provided with signal output component 7, the front of wiring board 6 be positioned at lens 2 under be provided with opto-electronic conversion chip 5, wiring board 6 around the opto-electronic conversion chip 5 is provided with temperature sensor 8, opto-electronic conversion chip 5 top surfaces are provided with the sensitization form, and inside is provided with circuit, and the function of opto-electronic conversion chip 5 is to convert light signal to the signal of telecommunication.When contact-type image sensor is worked, the light transmission transparent panel 4 that light source 3 sends shines on the original copy, a part of reverberation on the scan manuscript sees through transparent panel 4 and enters optical lens 2, shine on the opto-electronic conversion chip 5 from optical lens other end reverberation out, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication, by signal output component 7 outputs.Carrying out along with scanning, the heat that each device work produces on the wiring board causes the temperature around the opto-electronic conversion chip 5 to raise gradually, the variation of 5 pairs of temperature of opto-electronic conversion chip is very responsive, the magnitude of voltage of output signal is different under the different temperatures, this moment, temperature sensor 8 energy fast detecting went out the temperature of photoelectricity conversion chip 5, temperature parameter is exported by signal output component 7, image processing system can adopt suitable augmenting factor according to the temperature parameter that obtains, the signal of telecommunication to the conversion of opto-electronic conversion chip carries out revisal, obtain accurately image scanning result, the structure of above-mentioned each part and the interconnected relationship between them are same as the prior art, and this does not give unnecessary details.
Embodiment 3: as shown in Figure 4, contact-type image sensor comprises passive framework 1, be provided with optical lens 2 in the framework 1, one side of optical lens 2 is provided with light source 3, the top of lens 2 is provided with transparent panel 4, on transparent panel 4, do not affect original copy and be provided with temperature sensor 8 by the position, the below of lens 2 is provided with wiring board 6, the back side of wiring board 6 is provided with signal output component 7, the front of wiring board 6 be positioned at lens 2 under be provided with opto-electronic conversion chip 5, opto-electronic conversion chip 5 top surfaces are provided with the sensitization form, and inside is provided with circuit, and the function of opto-electronic conversion chip 5 is to convert light signal to the signal of telecommunication.When contact-type image sensor is worked, the light transmission transparent panel 4 that light source 3 sends shines on the original copy, a part of reverberation on the scan manuscript sees through transparent panel 4 and enters optical lens 2, shine on the opto-electronic conversion chip 5 from optical lens other end reverberation out, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication, by signal output component 7 outputs.Carrying out along with scanning, original copy passes through the surface of transparent panel 4 fast, rub with transparent panel 4, produce amount of heat, because contact-type image sensor space of living in is relatively sealed, the amount of heat that produces distributes does not go out, temperature raises, affect the normal operation of contact-type image sensor, this moment, temperature sensor 8 energy fast detecting went out the temperature of transparent panel 4, temperature parameter is exported by signal output component 7, system can determine whether to end according to the temperature parameter that obtains the work of contact-type image sensor, perhaps adopt other cooling measure to guarantee safety, the structure of above-mentioned each part and the interconnected relationship between them are same as the prior art, and this does not give unnecessary details.
Embodiment 4: as shown in Figure 5, contact-type image sensor comprises passive framework 1, be provided with optical lens 2 in the framework 1, one side of optical lens 2 is provided with light source 3, the top of lens 2 is provided with transparent panel 4, the below of lens 2 is provided with wiring board 6, the back side of wiring board 6 is provided with signal output component 7, temperature sensor 8 and red alarm indicator light 9, on the wiring board 6 positive be positioned at lens 2 under be provided with opto-electronic conversion chip 5, opto-electronic conversion chip 5 top surfaces are provided with the sensitization form, inside is provided with circuit, and the function of opto-electronic conversion chip 5 is to convert light signal to the signal of telecommunication.When contact-type image sensor is worked, the light transmission transparent panel 4 that light source 3 sends shines on the original copy, a part of reverberation on the scan manuscript sees through transparent panel 4 and enters optical lens 2, shine on the opto-electronic conversion chip 5 from optical lens other end reverberation out, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication, by signal output component 7 outputs.When ambient temperature changes, can make the work abnormal of contact-type image sensor, the temperature sensor 8 at wiring board 6 back sides can detect the temperature of surrounding environment at this moment, provide caution by warning device 9, and temperature sensor 8 is installed in the back side of wiring board 6, and the user can freely select sensor model number as required, and it is convenient to change, the structure of above-mentioned each part and the interconnected relationship between them are same as the prior art, and this does not give unnecessary details.
Embodiment 5: as shown in Figure 6, contact-type image sensor comprises passive framework 1, be provided with optical lens 2 in the framework 1, one side of optical lens 2 is provided with light source 3, the top of lens 2 is provided with transparent panel 4, the below of lens 2 is provided with wiring board 6, the back side of wiring board 6 is provided with temperature sensor---and heat is protected device 8 and signal output component 7, the front of wiring board 6 be positioned at lens 2 under be provided with opto-electronic conversion chip 5, opto-electronic conversion chip 5 top surfaces are provided with the sensitization form, inside is provided with circuit, and the function of opto-electronic conversion chip 5 is to convert light signal to the signal of telecommunication.When contact-type image sensor is worked, the light transmission transparent panel 4 that light source 3 sends shines on the original copy, a part of reverberation on the scan manuscript sees through transparent panel 4 and enters optical lens 2, shine on the opto-electronic conversion chip 5 from optical lens other end reverberation out, the opto-electronic conversion chip converts the light signal that receives to the signal of telecommunication, by signal output component 7 outputs.Carrying out along with scanning, the heat that each device work produces on the wiring board causes the temperature of wiring board 6 to raise gradually, the power supply of the temperature sensor 8 at wiring board 6 back sides energy fast shut-off contact-type image sensor when temperature reaches its rated value prevents the scanning result distortion of contact-type image sensor at this moment.
Claims (8)
1. contact-type image sensor, comprise passive framework, be provided with optical lens in the framework, the side of optical lens is provided with light source, the top of lens is provided with transparent panel, and the below of lens is provided with circuit base plate, and circuit base plate is provided with opto-electronic conversion chip and signal output component, it is characterized in that contact-type image sensor is provided with temperature sensor, the signal that temperature sensor collects is connected on the peripheral circuit by signal output component.
2. a kind of contact-type image sensor according to claim 1 is characterized in that temperature sensor is arranged on the framework at light source place of contact-type image sensor.
3. a kind of contact-type image sensor according to claim 1 is characterized in that temperature sensor is arranged on the circuit base plate of contact-type image sensor.
4. a kind of contact-type image sensor according to claim 3 is characterized in that temperature sensor is arranged on the back side of circuit base plate.
5. a kind of contact-type image sensor according to claim 1 is characterized in that temperature sensor is arranged on the transparent panel of contact-type image sensor.
6. according to claim 1 and 2 or 3 or 4 or 5 described a kind of contact-type image sensors, it is characterized in that temperature sensor is that a kind of its output signal varies with temperature and the transducer that changes.
7. according to claim 1 and 2 or 3 or 4 or 5 described a kind of contact-type image sensors, it is characterized in that temperature sensor is a kind of switching device that comes control circuit conducting and disconnection with variations in temperature.
8. according to claim 1 and 2 or 3 or 4 or 5 described a kind of contact-type image sensors, it is characterized in that temperature sensor links to each other with the warning device of contact-type image sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220367308.6U CN202696734U (en) | 2012-07-27 | 2012-07-27 | Contact type image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220367308.6U CN202696734U (en) | 2012-07-27 | 2012-07-27 | Contact type image sensor |
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| Publication Number | Publication Date |
|---|---|
| CN202696734U true CN202696734U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220367308.6U Expired - Fee Related CN202696734U (en) | 2012-07-27 | 2012-07-27 | Contact type image sensor |
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| CN (1) | CN202696734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801889A (en) * | 2012-07-27 | 2012-11-28 | 威海华菱光电股份有限公司 | Contact type image sensor |
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2012
- 2012-07-27 CN CN201220367308.6U patent/CN202696734U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801889A (en) * | 2012-07-27 | 2012-11-28 | 威海华菱光电股份有限公司 | Contact type image sensor |
| CN102801889B (en) * | 2012-07-27 | 2015-02-04 | 威海华菱光电股份有限公司 | Contact type image sensor |
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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: 20130123 Termination date: 20200727 |