CN1306486C - Parallel optical information writing and reading method - Google Patents
Parallel optical information writing and reading method Download PDFInfo
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- CN1306486C CN1306486C CNB2004100262284A CN200410026228A CN1306486C CN 1306486 C CN1306486 C CN 1306486C CN B2004100262284 A CNB2004100262284 A CN B2004100262284A CN 200410026228 A CN200410026228 A CN 200410026228A CN 1306486 C CN1306486 C CN 1306486C
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- 230000003287 optical effect Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000003384 imaging method Methods 0.000 claims abstract description 22
- 239000010409 thin film Substances 0.000 claims description 29
- 230000010287 polarization Effects 0.000 claims description 10
- 239000010408 film Substances 0.000 claims description 8
- 230000001427 coherent effect Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 239000005338 frosted glass Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
A parallel optical information writing and reading method, it uses laser as the information writing light, use the luminescent diode or information writing laser as the information reading light; using a spatial light modulator as a parallel information input element, using a CCD camera and an image acquisition card as a parallel information reading device, and using a sample film of a photon type material as an information storage recording medium; the information loaded on the spatial light modulator is micro-imaged on a storage recording medium film by using a high-resolution imaging lens for writing, and the information stored on the recording medium film is magnified and imaged on a photosensitive surface of an information reading device when the information is read. The light splitting element is used to connect the spatial light modulator, the information reading device and the high-resolution imaging lens, so that the information writing light and the reading light respectively enter the storage recording medium film and the information reading device from different directions. The method can write and read 1024 x 768 bit information at the same time, and realize the parallel high-speed access of information data.
Description
Technical field
The present invention relates to a kind of high-speed optical information and write and reading method, relate in particular to a kind of spatial light modulator that adopts and write and reading method as information input element and the parallel high-speed optical information that adopts CCD as the information sensing element.
Background technology
Along with popularizing and fast development of computer media and network, need processing and data quantity stored to increase considerably, the optical information memory technology has become one of mainstay of current information science technology.Optical memory material mainly is divided into photo-thermal section bar material and photon type material; On storage means, be divided into serial and parallel.What the erasable optical disk of comparative maturity adopted at present is the serial read-write mode of photo-thermal section bar material.The writing speed of photo-thermal section bar material is subjected to the restriction of heating process, and the read-write mode of serial can only read and write 1 bit information at every turn, and the record reading speed is very limited.
Summary of the invention
The object of the present invention is to provide a kind of is the Information written into the parallel-ray method and the read out of stored record medium with the photon type material; It has solved in the background technology read-write mode can only read and write 1 bit information at every turn, the technical matters that the record reading speed is very limited.
Technical solution of the present invention is:
A kind of Information written into the parallel-ray method and the read out, its special character is: this method comprises
1). the laser with laser instrument output is write light inlet as information; Write laser with light emitting diode or information and read light as information;
2). the narrow laser beam of laser instrument output is transformed to thick collimated laser beam by the beam-expanding collimation device; Thick collimated laser beam is converted to incoherent light through coherent light to incoherent optical converter, with incoherent light lighting space photomodulator;
3). use spatial light modulator as the parallel information input element, add image pick-up card as the parallel information read-out device with ccd video camera, as the Infostorage Record medium, the information micro that will be carried on the spatial light modulator with high resolution imaging lens is imaged onto on the sample thin film with the sample thin film of photon type material; By beam splitter connection space photomodulator, parallel information read-out device and high resolution imaging lens, make information write light inlet and read light with information and enter sample thin film and parallel information read-out device respectively from different directions;
4). by the fine setting high resolution imaging lens, make the parallel information read-out device can clearly observe the sample thin film surface;
5). with computing machine load image or digital code information on spatial light modulator; By the fine setting spatial light modulator, make the parallel information read-out device can clearly see image or digital code information and sample thin film surface simultaneously;
6). write the time shutter with the shutter control information, with the information stores on the spatial light modulator to sample thin film;
7). be stored in information via high resolution imaging lens amplification imaging on the sample thin film to the parallel information read-out device; Regulate the preceding polaroid of parallel information read-out device, the light intensity that control enters the parallel information read-out device captures computing machine by the parallel information read-out device with image or digital code information;
8). by computing machine the digital code information that captures is decoded, recover raw information;
9). move by the little platform that moves of computer control two dimension, change and be placed on the little diverse location that moves sample thin film on the platform of two dimension, can store new image or digital code information again;
10). by the two-dimentional little accurate addressing of platform that moves of computer control, can read sample thin film diverse location canned data.
The recording materials of above-mentioned sample thin film can adopt the photon type material with optical bistability.
The storage disks of above-mentioned sample thin film adopts transmission-type structure or reflective structure all can.
The recording materials of above-mentioned sample thin film are good to adopt photochromic material; Above-mentioned laser instrument can adopt the continuous wave laser or the pulsed laser of the recording materials coupling of wavelength and sample thin film.
Above-mentioned beam splitter can adopt polarization splitting prism or polarization plated film beam splitting chip, and preferred plan is to use polarization splitting prism.
Above-mentioned high resolution imaging lens can adopt long reach flat field microcobjective, also can adopt big visual field high magnification anaberration micro imaging lens.
The present invention has following advantage:
1. employing Information written into the parallel-ray method and the read out, what write at every turn and read contains much information.Can write and read 1024 * 768 bits or more information at every turn.
2. the present invention's high-speed parallel optical information of being based on the photon type material behavior writes and readout scheme; Owing to there is not thermal effect, response speed is very fast.
Embodiment
The present invention is storage analog image or a digital code information on the photon type material, realize the parallel high-speed access of information data, can write or read 1024 * 768 bits or more information, the high-speed parallel optical information that is based on the photon type material behavior writes and reading method at every turn.The optical memory material that the present invention uses can be the photon type material with optical bistability, as photochromic material.Following optical storage developing direction is the concurrent reading and concurrent writing of photon type material.Photon type material optical storage utilization be directly effect such as transition of electronic energy behind the material absorbing photon, redistribution or chemical bond isomerization, make recording medium produce physics or chemical change and realize storage.Owing to there is not thermal effect, response speed can be very fast.
The present invention writes light inlet by laser instrument generation information.Laser instrument can be the continuous or pulsed laser of wavelength and photographic recording material coupling.Write the time shutter with the accurate control information of shutter.With spatial light modulator as the parallel information input element; Add image pick-up card as the parallel information read-out device with ccd video camera; With photon type material sample film as the Infostorage Record medium; Adopting high resolution imaging lens will be carried in information micro on the spatial light modulator is imaged onto on the Infostorage Record medium and writes; Then will be stored in information amplification imaging on the Infostorage Record medium during sense information to the photosurface of information read-out device; Adopt beam splitter connection space photomodulator, information read-out device and high resolution imaging lens, make information write light inlet and read light and enter Infostorage Record medium and information read-out device respectively from different directions; Before spatial light modulator, place coherent light to incoherent optical converter, with incoherent light lighting space photomodulator; To placing the beam-expanding collimation device between the incoherent optical converter, the narrow laser beam of laser instrument output is transformed to thick collimated laser beam at laser instrument and coherent light; Before the information read-out device, place light intensity control polaroid, the light intensity that control enters the information read-out device; But the Infostorage Record medium is placed on two-dimentional little the moving of computer programming control carries out addressing operation on the platform; Use light emitting diode or information to write laser and read light as information.The parallel information read-out device also can adopt cmos camera to add image pick-up card, perhaps adopts digital camera.The Infostorage Record medium is the photon type material film with optical bistability, as the photochromic material film.The storage disks of Infostorage Record medium can be transmission-type structure or reflective structure.The transmission-type structure is directly to prepare the recording materials film on optical glass substrate.Reflective structure is to plate one deck quarter-wave plate earlier on the completely reflecting mirror surface, and then prepares the recording materials film on quarter-wave plate.Wherein quarter-wave plate works to change the reflected light polarization direction.High resolution imaging lens is a kind of long reach flat field microcobjective, or big visual field high magnification anaberration micro imaging lens.Beam splitter is polarization splitting prism or polarization plated film beam splitting chip, and preferred plan is to use polarization splitting prism.Coherent light can adopt by frosted glass rotation of minitype motor driving to incoherent optical converter and constitute (patent ZL 02 2 62008.7), or is driven the device of a frosted glass vibration by a Vib..It plays the effect that the coherent light that laser instrument is sent is converted to incoherent light, can eliminate the noise signal that coherent light brings, and improves the signal to noise ratio (S/N ratio) of record and sense information.
Information is read light: when the Infostorage Record medium is transmission-type structure storage disks, use light emitting diode as reading light.Its characteristics are the light emitting diode of replaceable different wave length, and the sample that absorbs at difference produces the illumination light of different wave length, improves the quality (patent ZL 02 2 62126.1) of reading image.Adopt light emitting diode to read light source as illumination, be added with polaroid and collecting objective before the light emitting diode, collecting objective control illumination light only concentrates on the sample area of wanting sense information, polaroid can rise partially reading light, help reading light and all enter the image read-out device by polarization splitting prism, to reduce the required light intensity of reading, reduce to read the scrubbing action of light to writing information.
Information is read light: when being the reflective structure storage disks for the Infostorage Record medium, use information writes laser as reading light.Spatial light modulator loads white screen at this moment, and a little less than laser power was transferred, the light that utilization reflects from sample thin film can enter the information read-out device and read.
Spatial light modulator can load analog image to be stored or digital code information by computer control.Spatial light modulator can adopt the transmission-type spatial light modulator of various different resolutions; The information read-out device can read the information that writes on the sample thin film, deposits computing machine in.The storage density of the image quality decision systems of high resolution imaging lens.The little platform that moves of two dimension is used for fixing sample thin film, can control its accurate moving and the location by computer programming, realizes addressing.
Claims (6)
1. Information written into the parallel-ray method and the read out, it is characterized in that: this method comprises
1). the laser with laser instrument output is write light inlet as information; Write laser with light emitting diode or information and read light as information;
2). the narrow laser beam of laser instrument output is transformed to thick collimated laser beam by the beam-expanding collimation device; Thick collimated laser beam is converted to incoherent light through coherent light to incoherent optical converter, with incoherent light lighting space photomodulator;
3). use spatial light modulator as the parallel information input element, add image pick-up card as the parallel information read-out device with ccd video camera, as the Infostorage Record medium, the information micro that will be carried on the spatial light modulator with high resolution imaging lens is imaged onto on the sample thin film with the sample thin film of photon type material; By beam splitter connection space photomodulator, parallel information read-out device and high resolution imaging lens, make information write light inlet and read light with information and enter sample thin film and parallel information read-out device respectively from different directions;
4). by the fine setting high resolution imaging lens, make the parallel information read-out device can clearly observe the sample thin film surface;
5). with computing machine load image or digital code information on spatial light modulator; By the fine setting spatial light modulator, make the parallel information read-out device can clearly see image or digital code information and sample thin film surface simultaneously;
6). write the time shutter with the shutter control information, with the information stores on the spatial light modulator to sample thin film;
7). be stored in information via high resolution imaging lens amplification imaging on the sample thin film to the parallel information read-out device; Regulate the preceding light intensity control polaroid of parallel information read-out device, the light intensity that control enters the parallel information read-out device captures computing machine by the parallel information read-out device with image or digital code information;
8). by computing machine the digital code information that captures is decoded, recover raw information;
9). move by the little platform that moves of computer control two dimension, change and be placed on the little diverse location that moves sample thin film on the platform of two dimension, can store new image or digital code information again;
10). by the two-dimentional little accurate addressing of platform that moves of computer control, can read sample thin film diverse location canned data.
2. Information written into the parallel-ray method and the read out according to claim 1 is characterized in that: the recording materials of described sample thin film are the photon type material with optical bistability.
3. Information written into the parallel-ray method and the read out according to claim 1 and 2 is characterized in that: the storage disks of described sample thin film is transmission-type structure or reflective structure.
4. Information written into the parallel-ray method and the read out according to claim 3 is characterized in that: the recording materials of described sample thin film are photochromic material; Described laser instrument is the continuous wave laser or the pulsed laser of the recording materials coupling of wavelength and sample thin film.
5. Information written into the parallel-ray method and the read out according to claim 3 is characterized in that: described beam splitter is polarization splitting prism or polarization plated film beam splitting chip.
6. Information written into the parallel-ray method and the read out according to claim 5 is characterized in that: described high resolution imaging lens is a long reach flat field microcobjective, or big visual field high magnification anaberration micro imaging lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100262284A CN1306486C (en) | 2004-06-10 | 2004-06-10 | Parallel optical information writing and reading method |
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| CNB2004100262284A CN1306486C (en) | 2004-06-10 | 2004-06-10 | Parallel optical information writing and reading method |
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| CN1707626A CN1707626A (en) | 2005-12-14 |
| CN1306486C true CN1306486C (en) | 2007-03-21 |
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| CNB2004100262284A Expired - Fee Related CN1306486C (en) | 2004-06-10 | 2004-06-10 | Parallel optical information writing and reading method |
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| CN1851467B (en) * | 2006-04-28 | 2011-05-11 | 杨美英 | Material jaw device for LED light splitting machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299507A (en) * | 1998-02-27 | 2001-06-13 | 光技术企业公司 | Method and apparatus for optical information, method and apparatus for reproducing optical information, apparatus for recording/reproducing optical information, and optical information recording mediu |
| CN1470053A (en) * | 2000-10-12 | 2004-01-21 | 光技术企业公司 | Optical information recording apparatus and method optical information reproducing apparatus and method, optical information recording/reproducing apparatus and method |
| JP2004139691A (en) * | 2002-10-18 | 2004-05-13 | Matsushita Electric Ind Co Ltd | Optical memory device |
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- 2004-06-10 CN CNB2004100262284A patent/CN1306486C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299507A (en) * | 1998-02-27 | 2001-06-13 | 光技术企业公司 | Method and apparatus for optical information, method and apparatus for reproducing optical information, apparatus for recording/reproducing optical information, and optical information recording mediu |
| CN1470053A (en) * | 2000-10-12 | 2004-01-21 | 光技术企业公司 | Optical information recording apparatus and method optical information reproducing apparatus and method, optical information recording/reproducing apparatus and method |
| JP2004139691A (en) * | 2002-10-18 | 2004-05-13 | Matsushita Electric Ind Co Ltd | Optical memory device |
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Assignee: Zhejiang Huahong Photoelectric Group Co.,Ltd. Assignor: XI'AN INSTITUTE OF OPTICS AND PRECISION MECHANICS OF CAS Contract fulfillment period: 2008.8.28 to 2024.6.9 Contract record no.: 2008330001855 Denomination of invention: Parallel information writing and reading method Granted publication date: 20070321 License type: Exclusive license Record date: 20081110 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.28 TO 2024.6.9; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE HUAHONG PHOTOELECTRIC GROUP CO., Effective date: 20081110 |
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Granted publication date: 20070321 Termination date: 20130610 |