CN1447582A - Compact type optical scanners - Google Patents
Compact type optical scanners Download PDFInfo
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- CN1447582A CN1447582A CN 03115408 CN03115408A CN1447582A CN 1447582 A CN1447582 A CN 1447582A CN 03115408 CN03115408 CN 03115408 CN 03115408 A CN03115408 A CN 03115408A CN 1447582 A CN1447582 A CN 1447582A
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Abstract
A compact type optical scanners can be built in notebook computes, palm type computers and handset etc. mobile assembly, including the light source, the organic glass plate, the illuminator, the photoreceptor and the manuscript transport assembly, including the light source, the organic glass plate, the sensitization sensor, the A/D converter, the image processor and the storage unit etc. The thermal insulation layer, LED, concave mirror illuminator OPD organic photodiode sensitive layer, IC chips and cooling air channels are setup in the body cavity with the solid light source and the solid organic semiconductor sensitive material being utilized. The invention has the advantages of simple technique of OPD, small size, lightweight and easy of use.
Description
Affiliated technical field
The present invention relates to a kind of optical scanning device, refer to especially a kind ofly can be built in notebook computer, the compact optical scanning instrument (Compact optical scanner) of mobile office automations such as palmtop PC (PDA) and mobile phone.
Background technology
Optical scanner commonly used all is external, this photosensitive material is owing to the reason on material structure, technology and the cost, generally do not use scanning in proportion, and carry out convergent-divergent by optical system, so this class scanner is unlikely little of being built in notebook computer, palmtop PC PDA and mobile phone etc.As the novel input equipment of computer---scanner, the reduction significantly with price of improving constantly along with performance appears at fields such as advertisement design, publication and printing, webpage design more and more.According to different operation principles, scanner is divided into two kinds: drum type scanner and flatbed scanner.A kind of is drum type scanner: the manuscript subsides are placed on the clean polymethyl methacrylate cylinder, allow cylinder rotate around an electro-optical system (often being called " probe ") with certain speed (normally per minute 300-1500 changes).A bright light source is arranged in the probe, and the light of launching is radiated on the manuscript by tiny taper aperture, samples in pixel ground of next pixel.If manuscript adopts is reflection-type medium (as opaque paper etc.), pop one's head in so from the outside irradiation of cylinder, the light that reflects is divided into RGB by a cover beam split colour filter system and pastes the RGB three-beam, is received and generated analog signal again by receiving system.If manuscript is transmissive medium (film of using as lantern slide, projection etc.), probe is the internal irradiation from cylinder so, and what receiving system received is transmitted light.The analog signal that generates becomes digital signal by ADC (Analog toDigital Conversion analog to digital converter) with this analog signal conversion, after handling by the single board computer in the drum type scanner, sends signal to computer, finishes scanning process.Because the drum type scanner structure is special, its advantage is very obvious: optical resolution very high (2500-8000dpi), high grade grey level (30-48bit) and very wide dynamic range, the image that can handle large format, speed is fast, productivity ratio is high.The image of drum type scanner output generally has characteristics such as color rendition is true to nature, the shadow region details abundant, amplification effect is outstanding.Certainly, its shortcoming also clearly: floor space is big, the cost very expensive 5-50 of flat bed scanner (be doubly), seldom sees on the market.
Another kind is a flat bed scanner, claim CCD (Charge Coupled Device) scanner again: manuscript is placed on the very clean polymethyl methacrylate flat board, manuscript is fixed, and light-source system (CCD) moves horizontally by a transmission device, the irradiate light of launching is on manuscript, after reflection or transmission, receive and generate analog signal by receiving system, convert digital signal to by ADC after, directly be sent to computer, handle accordingly by the latter, finish scanning process.Because flat bed scanner adopts the material of main part of silicon (Si) as sensor devices, can not accomplish that manuscript scans in proportion, the entire circuit because of ccd scanner is comparatively complicated again, and the power supply and the synchronised clock control circuit of different voltages also need be provided, and integrated level is very low.
Summary of the invention
In order to overcome above-mentioned weak point, main purpose of the present invention aims to provide a kind ofly accomplishes notebook computer with the optical scanner function, and novel reading in and memory device such as palmtop PC (PDA) and mobile phone belong to the business automation equipment image input device.
The technical problem to be solved in the present invention is: be built in notebook computer, the optical scanning device of mobile office automations such as palmtop PC (PDA) and mobile phone can scan the file of promptness very easily, as: manuscripts such as business card, fax and contract; Solve the relevant technologies problem of organic photoelectric diode as detector.
The technical solution adopted for the present invention to solve the technical problems is: this device has illuminating device, sensor devices and manuscript transfer member are formed, include light source, light guide plate, photosensitive sensor, analog to digital converter, presentation manager and memory, be provided with thermal insulation layer in the middle of in the body cavity, the top of thermal insulation layer is sequentially with LED light-emitting diode and concave mirror reflector, the electrooptical device of OPD (Organic Photodiode) organic photoelectric diode is arranged at the bottom, in the middle of it is OPD organic photoelectric diode photosensitive layer, integrated circuit is installed in the body cavity to be driven and control chip, on in the chamber, respectively there is the cooling air passage on the right side, bottom, the body bottom is equipped with fan, body has the manuscript conveyer, manuscript is placed in the conveyer, scans; Can be built in notebook computer, the optical scanning device of mobile office automations such as palmtop PC (PDA) and mobile phone.
The illuminating device of described compact optical scanning instrument has light source, light source is white or red, green, blue three core LED light-emitting diode and light guide plate, it is the total solids optical system, the White LED light-emitting diode can make the beam split of incoming signal light make color scanner with having red, green, blue colo(u)r filter transparency electrode or organic photosensitive layer or metal electrode, uses red, green, blue three core LED light-emitting diodes respectively original copy to be thrown light on.
The integrated circuit driving of described compact optical scanning instrument is connected the OPD photosensitive sensor with control chip, the OPD photosensitive sensor is connecting power supply, signal amplifier, signal read circuits, analog to digital converter and image processor are arranged, signal amplifier connection mode number converter on integrated circuit driving and the control chip; Integrated circuit drive with control chip on the organic photoelectric diode matrix be connected the signal read-out system respectively, signal read-out system be linked in sequence signal amplifier, decoder and fixed cell sensitization value, fixed cell sensitization value links to each other with distributor, regularly is connected with control unit and controls decoder and distributor.
Computer and electric power source distribution device in the organic photoelectric diode matrix circuit of described compact optical scanning instrument, clock and control module are connected, electric power source distribution device successively with fixed cell sensitization value tester, image processor, digital signal is processor line by line, analog to digital converter, signal amplifier, signal reads integrated circuit modules and the OPD photosensitive sensor is connected, light signal is directly injected the OPD photosensitive sensor, the OPD photosensitive sensor is output as the input that signal is read integrated circuit modules, signal is read the input that integrated circuit modules is output as signal amplifier, signal amplifier is connected with analog to digital converter, analog to digital converter and image processor are output as the digital signal input of processor line by line, and the digital signal signal of processor line by line is output as the input of computer.
The OPD electrooptical device of described compact optical scanning instrument is a substrate with glass or the resin that is shaped on antireflection film and transparency electrode, the light that comes from the original copy reflection incides substrate, it on substrate the organic photoelectric photosensitive layer, metal electrode on the system on the organic photoelectric photosensitive layer, draw positive and negative electrode in transparency electrode and metal electrode place respectively, making alive between two electrodes.
The OPD organic photoelectric diode photosensitive layer of described compact optical scanning instrument or form with molecule of organic end and macromolecule can be made with methods such as vacuum evaporation, spin coatings.
The electrooptical device of the OPD organic photoelectric diode of described compact optical scanning instrument is made sensor devices with the ratio of original copy one to, and light requirement is not learned panntographic system, can prepare the red, green, blue colo(u)r filter on the transparency electrode, with the incoming signal beam split.
The sensor devices of described compact optical scanning instrument or with the material of inorganic photoelectric transducer is that monocrystalline, polycrystalline or do not have gone silicon GaAs surely, PbS, CdS, compositions such as CdSe.
A kind of scan method of compact optical scanning instrument, with OPD organic photoelectric diode is sensor devices, original copy is placed on the transmission device, move horizontally by transmission device, the irradiate light of launching is on manuscript, after reflection or transmission, receive and generate analog signal by receiving system, convert digital signal to by analog to digital converter, directly be sent to computer and carry out respective handling, its job step is:
Step 2. manuscript reflection: when light when manuscript reflexes to the OPD photosensitive sensor, the red, green, blue colo(u)r filter before the White-light LED illumination, OPD photosensitive sensor makes the beam split of incoming signal light; When adopting red, green, blue three core LED light-emitting diodes to throw light on respectively, also can make the beam split of incoming signal light, obtain colour signal; The electric current that connects OPD photosensitive sensor circuit changes, and read integrated circuit modules by signal and deposit, and light intensity and wavelength in the unit are of read output signal correspondence;
Step 3. is amplified and adjusted: this signal is delivered to signal amplifier amplify, and compare and adjust with the sensitization value that is preset in the fixed cell sensitization value tester, adjusted signal is delivered to analog to digital converter;
Step 4. conversion, compile and send back to: analog to digital converter convert to one with the proportional binary number of incident intensity, this binary number i.e. the data of a pixel of correspondence, again by digital signal line by line processor compile signal, and send this signal back to computer.
The invention has the beneficial effects as follows: adopt OPD organic photoelectric diode as sensor devices, photosensitive unit is little, and unit are number of pixels, resolution and linear CCD are similar, and OPD technology is simple, with low cost, realize miniaturization, can be built in notebook computer, the optical scanning device of mobile office automations such as palmtop PC (PDA) and mobile phone, can scan the file of promptness very easily, as: manuscripts such as business card, fax and contract, volume is little, and is easy to use.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing 1 is a general structure block diagram of the present invention;
Accompanying drawing 2 is body construction schematic diagrames of the present invention;
Accompanying drawing 3 is body interior structure connection diagrams of the present invention;
Accompanying drawing 4 is optical-electrical converter syndeton schematic diagrames of the present invention;
Accompanying drawing 5 is organic photoelectric diode matrix schematic diagrames of the present invention;
Accompanying drawing 6 is organic photoelectric diode matrix circuit figure of the present invention;
Accompanying drawing 7 is course of work schematic diagrams of the present invention;
Label declaration in the accompanying drawing:
1-illuminating device; 19-electrode;
The light that the reflection of 2-sensor devices, 20-original copy comes;
3-manuscript transfer member; 21-organic photoelectric diode matrix;
4-OPD organic photoelectric diode photosensitive layer; 22-decoder;
5-thermal insulation layer; 23-timing and control unit;
6-cooling air passage; 24-signal read-out system;
7-concave mirror reflector; 25-distributor;
8-LED light-emitting diode; 26-fixed cell sensitization value;
9-light; 27-computer;
10-manuscript, 28-electric power source distribution device;
11-fan; 29-clock and control module;
12-power supply; 30-fixed cell sensitization value tester;
13-OPD photosensitive sensor; 31-image processor;
14-signal amplifier; 32-digital signal is processor line by line;
15-analog to digital converter; 33-signal is read integrated circuit modules;
16-metal electrode; 15-analog to digital converter;
17-organic photoelectric photosensitive layer; 35-light signal;
18-be shaped on the glass or the resin of antireflection film and transparency electrode;
36-body.
Embodiment
See also accompanying drawing 1, shown in 2, device of the present invention has illuminating device 1, sensor devices 2 and manuscript transfer member 3 are formed, include light source, light guide plate, photosensitive sensor, analog to digital converter 15, presentation manager 31 and memory, be provided with thermal insulation layer 5 in the middle of in body 36 chambeies, the top of thermal insulation layer 5 is sequentially with LED light-emitting diode 8 and concave mirror reflector 7, the electrooptical device of OPD (Organic Photodiode) organic photoelectric diode is arranged at the bottom, in the middle of it is OPD organic photoelectric diode photosensitive layer 4, integrated circuit is installed in body 36 chambeies to be driven and control chip, on in the chamber, respectively there is cooling air passage 6 on the right side, bottom, body 36 bottoms are equipped with fan 11, body 36 has the manuscript conveyer, manuscript 10 is placed in the conveyer, scans; Can be built in notebook computer, the optical scanning device of mobile office automations such as palmtop PC (PDA) and mobile phone.
The illuminating device 1 of described compact optical scanning instrument has light source, light source is white or red, green, blue three core LED light-emitting diode 8 and light guide plate, it is the total solids optical system, the White LED light-emitting diode can make the beam split of incoming signal light make color scanner with having red, green, blue colo(u)r filter transparency electrode or organic photosensitive layer or metal electrode 16, uses red, green, blue three core LED light-emitting diodes respectively original copy to be thrown light on.
See also shown in the accompanying drawing 3,5,6, the integrated circuit driving of described compact optical scanning instrument is connected OPD photosensitive sensor 13 with control chip, OPD photosensitive sensor 13 is connecting power supply 12, signal amplifier 14, signal read circuits, analog to digital converter 15 and image processor 31 are arranged, signal amplifier 14 connection mode number converters 15 on integrated circuit driving and the control chip; Integrated circuit drive with control chip on organic photoelectric diode matrix 21 be connected signal read-out system 24 respectively, signal read-out system 24 be linked in sequence signal amplifier 14, decoder 22 and fixed cell sensitization value 26, fixed cell sensitization value 26 links to each other with distributor 25, and timing is connected with control unit 23 and controls decoder 22 and distributor 25.
See also shown in the accompanying drawing 7, computer 27 and electric power source distribution device 28 in the organic photoelectric diode matrix circuit of described compact optical scanning instrument, clock and control module 29 are connected, electric power source distribution device 28 successively with fixed cell sensitization value tester 30, image processor 31, digital signal is processor 32 line by line, analog to digital converter 15, signal amplifier 14, signal reads integrated circuit modules 33 and OPD photosensitive sensor 13 is connected, light signal 35 is directly injected OPD photosensitive sensor 13, OPD photosensitive sensor 13 is output as the input that signal is read integrated circuit modules 33, signal is read the input that integrated circuit modules 33 is output as signal amplifier 14, signal amplifier 14 is connected with analog to digital converter 15, analog to digital converter 15 and image processor 31 are output as the digital signal input of processor 32 line by line, and the digital signal signal of processor 32 line by line is output as the input of computer 27.
See also shown in the accompanying drawing 4, the OPD electrooptical device of described compact optical scanning instrument is a substrate with glass or the resin 18 that is shaped on antireflection film and transparency electrode, the light 20 that comes from the original copy reflection incides substrate, it on substrate organic photoelectric photosensitive layer 17, metal electrode 16 on the system on organic photoelectric photosensitive layer 17, draw positive and negative electrode in transparency electrode and metal electrode 16 places respectively, at 19 making alives of two electrodes; The OPD electrooptical device with vacuum steaming degree or with coating process with organic photo material such as C60 and derivative thereof as adulterate body, based on MEH-PPV, metal electrode 16 on the system, connecting organic semiconductor such as C60 and derivative thereof as the transparency electrode of adulterate body and metal electrode 16 making alives that are connected organic semiconductor MEH-PPV.
The OPD organic photoelectric diode photosensitive layer of described compact optical scanning instrument or form with molecule of organic end and macromolecule can be made with methods such as vacuum evaporation, spin coatings.
The electrooptical device of the OPD organic photoelectric diode of described compact optical scanning instrument is made sensor devices with the ratio of original copy one to, and light requirement is not learned panntographic system, can prepare the red, green, blue colo(u)r filter on the transparency electrode, with the incoming signal beam split.
The sensor devices of described compact optical scanning instrument or with the material of inorganic photoelectric transducer is that monocrystalline, polycrystalline or do not have gone silicon GaAs surely, PbS, CdS, compositions such as CdSe.
See also shown in the accompanying drawing 1,2,3,4,5,6,7, a kind of scan method of compact optical scanning instrument, with OPD organic photoelectric diode is sensor devices, and original copy is placed on the transmission device, moves horizontally by transmission device, the light of launching 9 is radiated on the manuscript 10, after reflection or transmission, receive and the generation analog signal by receiving system, convert digital signal to by analog to digital converter 15, directly be sent to computer 27 and carry out respective handling, its job step is:
Step 2. manuscript reflection: when light 9 when manuscript 10 reflexes to OPD photosensitive sensor 13, White-light LED illumination, the red, green, blue colo(u)r filters before the OPD photosensitive sensor 13 make the beam split of incoming signal light; When adopting red, green, blue three core LED light-emitting diodes 8 to throw light on respectively, also can make the beam split of incoming signal light, obtain colour signal; The electric current that connects OPD photosensitive sensor 13 circuit changes, and read integrated circuit modules 33 by signal and deposit, and light intensity and wavelength in the unit are of read output signal correspondence;
Step 3. is amplified and adjusted: this signal is delivered to signal amplifier 14 amplify, and compare and adjust with the sensitization value that is preset in the fixed cell sensitization value tester 30, adjusted signal is delivered to analog to digital converter 15;
Step 4. is changed, compiles and sent back to: analog to digital converter 15 converts one and the proportional binary number of incident intensity to, the data of the promptly corresponding pixel of this binary number, again by digital signal line by line processor 32 compile signal, and send this signal back to computer 27.
Operation principle of the present invention: during the work of 0PD photosensitive sensor, connect the organic semi-conductor transparency electrode and be connected organic semiconductor alloy electrode 16 making alives, when light 9 is incident upon organic semiconductor by transparency electrode, the electronics that is in valence band in the organic semiconductor will absorb the energy of photon and conduction band is gone in transition.The electron transition that produces when photon enters organic semiconductor forms electronics one hole under the effect of extra electric field, moves to the electrode two ends respectively, Here it is photogenerated charge.The generation of photogenerated charge is decided by the energy (being the incident light wavelength) of incident photon and the quantity (light intensity) of photon. incident light is strong more, the conducting particles that excites in the organic photo material (electron hole pair) is many more, thereby make electric current big more, the variation of electric current has directly reflected incident intensity.The signal of OPD photoelectric sensor collection output is and the proportional analog electrical signal of incident intensity (the big or small continually varying signal of telecommunication), this signal of telecommunication need be sent to the conversion of A/D analog/digital signal conversion device, convert one and the proportional binary number of incident intensity to, the data of the promptly corresponding pixel of this binary number.During actual fabrication, OPD photosensitive sensor 13, image signal amplifier, signal read circuits, analog to digital converter 15, image-signal processor etc. can be integrated on the same chip, make the OPD photosensitive sensor read and handle and become simple and quick the image information that obtains.
Embodiments of the invention: optical scanner involved in the present invention is built on the notebook computer, and the position has three kinds: position or in the top or the side position of the display screen of notebook computer; Position or in notebook computer two-part joint portion up and down; Position or in three sides of notebook host part.Optical scanner involved in the present invention also can be built on the mobile phone or be built on the PDA palmtop PC.
Can directly be connected when the present invention uses, also can disassemble, be connected with computer by USB interface from computer, PDA palmtop PC, mobile phone with computer.
Claims (9)
1. compact optical scanning instrument, this device has illuminating device, sensor devices and manuscript transfer member, include light source, light guide plate, photosensitive sensor, analog to digital converter, presentation manager and memory, it is characterized in that: be provided with thermal insulation layer in the middle of in the body cavity, the top of thermal insulation layer is sequentially with LED light-emitting diode and concave mirror reflector, the electrooptical device of OPD organic photoelectric diode is arranged at the bottom, in the middle of it is OPD organic photoelectric diode photosensitive layer, integrated circuit is installed in the body cavity to be driven and control chip, on in the chamber, respectively there is the cooling air passage on the right side, bottom, the body bottom is equipped with fan, body has the manuscript conveyer, and manuscript is placed in the conveyer.
2. compact optical scanning instrument according to claim 1 is characterized in that: described illuminating device has light source, and light source is white or red, green, blue three core LED light-emitting diode and light guide plate.
3. compact optical scanning instrument according to claim 1, it is characterized in that: described integrated circuit driving is connected the OPD photosensitive sensor with control chip, the OPD photosensitive sensor is connecting power supply, signal amplifier, signal read circuits, analog to digital converter and image processor are arranged, signal amplifier connection mode number converter on integrated circuit driving and the control chip; Integrated circuit drive with control chip on the organic photoelectric diode matrix be connected the signal read-out system respectively, signal read-out system be linked in sequence signal amplifier, decoder and fixed cell sensitization value, fixed cell sensitization value links to each other with distributor, regularly is connected with control unit and controls decoder and distributor.
4. according to claim 1,3 described compact optical scanning instrument, it is characterized in that: computer and electric power source distribution device in the described organic photoelectric diode matrix circuit, clock and control module are connected, electric power source distribution device successively with fixed cell sensitization value tester, image processor, digital signal is processor line by line, analog to digital converter, signal amplifier, signal reads integrated circuit modules and the OPD photosensitive sensor is connected, light signal is directly injected the OPD photosensitive sensor, the OPD photosensitive sensor is output as the input that signal is read integrated circuit modules, signal is read the input that integrated circuit modules is output as signal amplifier, signal amplifier is connected with analog to digital converter, analog to digital converter and image processor are output as the digital signal input of processor line by line, and the digital signal signal of processor line by line is output as the input of computer.
5. compact optical scanning instrument according to claim 1, it is characterized in that: described OPD electrooptical device is a substrate with glass or the resin that is shaped on antireflection film and transparency electrode, the light that comes from the original copy reflection incides substrate, it on substrate the organic photoelectric photosensitive layer, metal electrode on the system on the organic photoelectric photosensitive layer, draw positive and negative electrode in transparency electrode and metal electrode place respectively, making alive between two electrodes.
6. compact optical scanning instrument according to claim 1 is characterized in that: described OPD organic photoelectric diode photosensitive layer or form with molecule of organic end and macromolecule, make with vacuum evaporation, spin coating method.
7. according to claim 1,5 described compact optical scanning instrument, it is characterized in that: the electrooptical device of described OPD organic photoelectric diode is made sensor devices with the ratio of original copy one to, preparation red, green, blue colo(u)r filter on the transparency electrode.
8. compact optical scanning instrument according to claim 1 is characterized in that: described sensor devices or with the material of inorganic photoelectric transducer is that monocrystalline, polycrystalline or do not have gone silicon surely and formed.
9. the scan method of a compact optical scanning instrument, it is characterized in that: with OPD organic photoelectric diode is sensor devices, original copy is placed on the transmission device, move horizontally by transmission device, the irradiate light of launching is on manuscript, after reflection or transmission, receive and generate analog signal by receiving system, convert digital signal to by analog to digital converter, directly be sent to computer and carry out respective handling, its job step is:
Step 1. beginning: send instruction by computer to the optical scanner of OPD organic photoelectric diode, transmission device is carried manuscript, solid light source irradiation manuscript;
Step 2. manuscript reflection: when light when manuscript reflexes to the OPD photosensitive sensor, the red, green, blue colo(u)r filter before the White-light LED illumination, OPD photosensitive sensor makes the beam split of incoming signal light; When adopting red, green, blue three core LED light-emitting diodes to throw light on respectively, also can make the beam split of incoming signal light, obtain colour signal; The electric current that connects OPD photosensitive sensor circuit changes, and read integrated circuit modules by signal and deposit, and light intensity and wavelength in the unit are of read output signal correspondence;
Step 3. is amplified and adjusted: this signal is delivered to signal amplifier amplify, and compare and adjust with the sensitization value that is preset in the fixed cell sensitization value tester, adjusted signal is delivered to analog to digital converter;
Step 4. conversion, compile and send back to: analog to digital converter convert to one with the proportional binary number of incident intensity, this binary number i.e. the data of a pixel of correspondence, again by digital signal line by line processor compile signal, and send this signal back to computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03115408 CN1447582A (en) | 2003-02-14 | 2003-02-14 | Compact type optical scanners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03115408 CN1447582A (en) | 2003-02-14 | 2003-02-14 | Compact type optical scanners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1447582A true CN1447582A (en) | 2003-10-08 |
Family
ID=28050437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03115408 Pending CN1447582A (en) | 2003-02-14 | 2003-02-14 | Compact type optical scanners |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1447582A (en) |
-
2003
- 2003-02-14 CN CN 03115408 patent/CN1447582A/en active Pending
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