CN106691677A - Retina chip driven by light source - Google Patents
Retina chip driven by light source Download PDFInfo
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- CN106691677A CN106691677A CN201510427824.1A CN201510427824A CN106691677A CN 106691677 A CN106691677 A CN 106691677A CN 201510427824 A CN201510427824 A CN 201510427824A CN 106691677 A CN106691677 A CN 106691677A
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- Prior art keywords
- light
- light source
- retina
- drives
- chip
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Abstract
The invention provides a retina chip driven by a light source to receive a signal light and a bias light. The retina chip driven by the light source comprises a photodiode array and a plurality of bias light extinction units, wherein the photodiode array comprises a plurality of photodiodes and a plurality of current amplifying circuits, the photodiodes convert the signal light into an electric signal and convert the bias light into a plurality of bias light currents, and the current amplifying circuits amplify the electric signal and the bias light currents; each bias light extinction unit comprises a plurality of bias light sensing circuits and a plurality of current extinction circuits, and the current extinction circuits weight the electric signal and extinct the bias light currents so as to increase the dynamic range of the retina chip driven by the light source.
Description
Technical field
The present invention relates to a kind of retina chip, the retina chip that espespecially a kind of use light source drives.
Background technology
Counted according to the World Health Organization (WHO), population of the whole world with eyeball disease is more than 4500
Ten thousand, to estimate to Christian era the year two thousand twenty, the population of eyeball disease will be increased to 76,000,000 people.
Eyeball is sequentially from front to back：Cornea, pupil, crystalline lens, vitreum and retina, retina
Light after crystalline lens is focused on changes into electric signal and chemical signal, and brain is come into by optic nerve so that people
Image can be seen.
The construction of retina is extremely complex, is broadly divided into three layers：After light injects eyeground, can initially pass through
Transparent outer layer and intermediate layer, then it is mapped to " photosensory cell " of innermost layer.Photosensory cell switchs to optical signal
Electric signal and chemical signal, the cell for being transmitted to intermediate layer are processed, and treated signal is transmitted to outermost again
Signal, is then passed back brain by the gangliocyte of layer.
If " photosensory cell " of retina is damaged, then can blind.Common vision disorders have two
Kind：One kind is retinitis pigmentosa, and another kind is Age related macular portion lesion, the disease of both eyes
Disease can be improved by " retina chip ".
Refer to Fig. 1, Special spectacles 11 must be had on using the user of retina chip, above device it is micro-
Type video camera 12.The optical signal that microcamera 12 will take switchs to electric signal, and patch is passed to electric wire 13
In the process chip 14 on ear side, process chip 14 can convert electrical signals to gangliocyte and can read
Electric impulse signal.After electric impulse signal is encoded, the coding chip 15 being embedded in after ear under skin is transmitted to,
Decode latter curb and the electric wire 16 being embedded under facial skin and be connected to eye socket and enter eyeball, finally pass to and be attached to
Battery lead plate 17 on retina outermost layer gangliocyte.The energy of microcamera 12 and process chip 14
Amount source is the battery case 18 by being connected to Special spectacles 11, is powered by battery case 18.As for patch
Battery lead plate 17 on the retina and coding chip 15, as long as being transmitted when with radio transmission wave signal
Electric energy enters to be powered.
Furthermore, refer to shown in Fig. 2, equally to be worn using the user of new generation retina chip special
Glasses 21, thereon device have microcamera 22, on Special spectacles 21 be equipped with a process chip 23, can
The electric signal that microcamera 22 is transmitted is converted into light pulse signal, be then emitted directly toward be embedded in it is photosensitive thin
Battery lead plate 24 under born of the same parents.Battery lead plate 24 is made of photoelectric material, and directly light pulse signal can be converted to
Electric impulse signal, is transmitted to the cell in retina intermediate layer, whole by gangliocyte feeding brain again after treatment
Close.Because process chip 23 is also to be made of photoelectric material, irradiation can have generating function concurrently, so with
Family need not in addition carry battery case, and the retina chip progress compared to prior-generation is many.
But, although on the one hand the photoelectric material of process chip can receive optical signal, on the other hand pass through light
Signal is generated electricity, but the result that two kinds of functions are synchronously used will cause that optical signal is difficult identification so that regarded
The identification effect of nethike embrane chip is deteriorated.Therefore, how to design one kind can be generated electricity by optical signal and
Retina chip with identification high, will be the current all circles pole technical problem to be solved.
The content of the invention
In view of the shortcoming of above-mentioned prior art, it is to provide what a kind of light source drove that a purpose of the invention is
Retina chip, to solve the problems, such as that optical signal is difficult identification.
It is the retina chip that light source provided by the present invention drives up to above-mentioned purpose, receives a flashlight
And a bias light, the retina chip that the light source drives includes：One photodiode array, comprising multiple
Photodiode and multiple current amplification circuits, wherein, be converted into for the flashlight by the photodiode
One electric signal, and the bias light is converted into multiple background photo currents, the photodiode is accordingly
The current amplification circuit is connected to, the current amplification circuit of the photodiode array amplifies the electricity
Signal and the background photo current；And multiple bias light reduction units, comprising multiple background light sensings electricity
Road and multiple electric current reduction circuits, wherein, the electric current reduction circuit is respectively and electrically connected to the photoelectricity two
The photodiode of pole pipe array, and the electric signal is weighted, the bias light reduction unit cuts down institute
Photodiode is stated due to the background photo current produced by the bias light, and then strengthens the retina core
The dynamic range of piece.
It is preferred that the retina chip that light source of the invention drives can more include a photoelectric conversion module, electricity
Property is connected to the photodiode array and the bias light reduction unit and converts light energy into electric energy, with
Supply the electric energy to the photodiode array and the bias light reduction unit.
It is preferred that the retina chip that the light source drives may be disposed at the retina of a user, after weighting
The electric signal can transmit to the gangliocyte of the retina of the user.
It is preferred that the photodiode array may be disposed at the central position of the retina chip of light source driving
Put.
It is preferred that the photodiode array can be a 64x64 photodiode arrays.
It is preferred that the bias light reduction unit may include one first bias light reduction unit, one second back of the body
Scape light reduction unit, one the 3rd bias light reduction unit and one the 4th bias light reduction unit, it sets respectively
It is placed in the corner of the retina chip.
It is preferred that the flashlight can be a danger signal light, a green light and a blue signal light
One of them or its combination.
It is preferred that the bias light can be an infrared background light.
It is preferred that the photoelectric conversion module can be a solar chip module.
It is of the invention synchronously to receive flashlight with bias light to drive retina chip, except effectively passing through light
Infrared ray and visible ray are converted into electric energy for photodiode array and the bias light by electric modular converter
Outside reduction unit running, photodiode array can effectively identification signal light producing corresponding thorn
Swash the gangliocyte of electric current to retina, compared to the retina chip of prior art, the present invention has
The high-effect advantage with identification high.
Brief description of the drawings
Fig. 1 is use schematic diagram of the display according to the retina chip of the first prior art；
Fig. 2 is use schematic diagram of the display according to the retina chip of the second prior art；
Fig. 3 is the schematic diagram of the retina chip that display light source of the present invention drives；And
Fig. 4 is the use schematic diagram of the retina chip that display light source of the present invention drives.
Wherein, description of reference numerals is as follows：
11 Special spectacles
12 microcameras
13 electric wires
14 process chips
15 coding chips
16 electric wires
17 battery lead plates
21 Special spectacles
22 microcameras
23 process chips
24 battery lead plates
The retina chip that 3 light sources drive
31 photodiode arrays
311 photodiodes
312 current amplification circuits
32 bias light reduction units
32a the first bias light reduction units
32b the second bias light reduction units
The bias light reduction units of 32c the 3rd
The bias light reduction units of 32d the 4th
33 photoelectric conversion modules
X flashlights
Y bias lights
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, the technology of this area is familiar with
Personnel can easily understand other advantages of the invention and effect by content disclosed in the present specification.This hair
Bright also to be implemented or applied by other different instantiations, the items in description of the invention are thin
Section also can based on different viewpoints with apply carried out under without departing from the spirit it is various modification with change.
It should be clear that accompanying drawing appended by this specification structure, ratio, size for illustrating etc., are only used to coordinate
Content disclosed in bright book, so that those of ordinary skill in the art understand and read, is not limited to
The enforceable qualifications of the present invention, therefore do not have technical essential meaning, the modification of any structure, ratio
The change or the adjustment of size of example relation, are not influenceing of the invention effect that can be generated and to be reached
Under purpose, all should fall in the range of disclosed technology contents are obtained and can covered.
Fig. 3 is refer to, it is the schematic diagram of the retina chip that light source of the present invention drives.As illustrated,
The retina chip 3 that light source of the invention drives receives an a flashlight X and bias light Y, and light source drives
Retina chip 3 include：One photodiode array 31, comprising multiple photodiodes 311 and many
Individual current amplification circuit 312, wherein, flashlight X is converted into a telecommunications by the photodiode 311
Number, and bias light Y is converted into multiple background photo currents, the photodiode 311 accordingly connects
The current amplification circuit 312 is connected to, the current amplification circuit 312 of photodiode array 31 is put
Big electric signal and the background photo current；And multiple bias light reduction units 32, comprising multiple bias lights
Sensing circuit and multiple electric currents reduction circuit (being not depicted in accompanying drawing), wherein, the electric current reduction circuit
32 are respectively and electrically connected to the photodiode 311 of photodiode array 31, and weight the telecommunications
Number, the bias light reduction unit 32 cuts down the photodiode 311 due to produced by bias light Y
The background photo current, and then strengthen the dynamic range of the retina chip 3.
In an embodiment of the present invention, the retina chip that light source of the invention drives has further included a photoelectricity
Modular converter 33, is electrically connected to photodiode array 31 and the bias light reduction unit 32.Light
Flashlight X and bias light Y can be converted into electric energy to provide photodiode array by electric modular converter 33
31 and the bias light reduction unit 32 operated.
Then, it is the retina core that display light source of the present invention drives please also refer to Fig. 3 and Fig. 4, Fig. 4
The installing schematic diagram of piece.In an embodiment of the present invention, the retina chip 3 that light source drives may be disposed at
The retina of one user, the electric signal after weighting can transmit to the gangliocyte of the retina of user.
Please continue to refer to Fig. 3, in an embodiment of the present invention, photodiode array 31 may be disposed at light
The middle position of the retina chip 3 that source drives, but be not limited thereto.
In an embodiment of the present invention, photodiode array 31 can be a 64x64 photodiode arrays,
But it is not limited thereto.For example, photodiode array 31 also can be 128x128 photodiodes battle array
Row.
In this embodiment, the bias light reduction unit 32 can include one first bias light reduction unit
32a, one second bias light reduction unit 32b, one the 3rd bias light reduction unit 32c and one the 4th background
Light reduction unit 32d, its corner for being respectively arranged at retina chip 3, effectively to detect bias light Y.
In this embodiment, flashlight X can be the blue letter of a danger signal light, a green light and
Number light or the combined one kind of the flashlight, such as orange-colored signal light, yellow signal light, indigo color letter
Number light, purple flashlight etc..
In this embodiment, bias light Y can be an infrared background light, but be not limited thereto.For example,
In the case of not harm users eyes, bias light Y also can be a ultraviolet background light.
In this embodiment, photoelectric conversion module 33 can be a solar chip module, the solar chip
Infrared ray and visible ray can be converted into electric energy by module.The use of solar chip module may correspond to this hair
Retina chip 3 that bright light source drives and adjusted, be not limited thereto.
The present invention synchronously receives flashlight X and bias light Y to drive retina chip, except effectively leading to
Cross photoelectric conversion module 33 infrared ray and visible ray are converted into electric energy for photodiode array 31 and
Outside the bias light reduction unit 32 is operated, photodiode array 31 can effectively identification signal light
X to produce corresponding stimulating current to the gangliocyte of retina, compared to the view of prior art
Membrane DNA chip, the present invention has the advantages that high-effect with identification high.
However, above-described embodiment only illustrative effect of the invention, not for the limitation present invention,
It is any be familiar with those skilled in the art can be under without prejudice to spirit and scope of the invention, to above-mentioned reality
Example is applied to be modified and changed.Additionally, the quantity of the component in above-mentioned these embodiments is only exemplary
Illustrate, it is also non-for limiting the present invention.Therefore the scope of the present invention, should be such as following application
Listed by the scope of the claims.
Claims (9)
1. the retina chip that a kind of light source drives, receives a flashlight and a bias light, it is characterised in that
The retina chip that the light source drives includes：
One photodiode array, comprising multiple photodiodes and multiple current amplification circuits, wherein,
The flashlight is converted into an electric signal by the photodiode, and the bias light is converted into multiple back ofs the body
Scape photoelectric current, the photodiode current amplification circuit, the photodiode
The current amplification circuit of array amplifies the electric signal and the background photo current；And
Multiple bias light reduction units, comprising multiple background light sensing circuits and multiple electric current reduction circuits,
Wherein, the electric current reduction circuit is respectively and electrically connected to the pole of the photoelectricity two of the photodiode array
Pipe, and the electric signal is weighted, the bias light reduction unit cuts down the photodiode due to the background
The background photo current produced by light, and then strengthen the dynamic range of the retina chip.
2. the retina chip that light source as claimed in claim 1 drives, it is characterised in that further include
Photoelectric conversion module, is electrically connected to the photodiode array and the bias light reduction unit, and will
Luminous energy is converted to electric energy, for should electric energy to the photodiode array and the bias light reduction unit.
3. the retina chip that light source as claimed in claim 2 drives, it is characterised in that the photoelectricity turns
Mold changing block is a solar chip module.
4. the retina chip that light source as claimed in claim 1 drives, it is characterised in that the light source drives
Dynamic retina chip is arranged at the retina of a user, and the electric signal after weighting is sent to the user's
The gangliocyte of retina.
5. the retina chip that light source as claimed in claim 1 drives, it is characterised in that the photoelectricity two
Pole pipe array is arranged at the middle position of the retina chip of light source driving.
6. the retina chip that light source as claimed in claim 1 drives, it is characterised in that the photoelectricity two
Pole pipe array is a 64x64 photodiode arrays.
7. the retina chip that light source as claimed in claim 1 drives, it is characterised in that the background
Light reduction unit includes one first bias light reduction unit, one second bias light reduction unit, one the 3rd back of the body
Scape light reduction unit and one the 4th bias light reduction unit, its corner for being respectively arranged at the retina chip.
8. the retina chip that light source as claimed in claim 1 drives, it is characterised in that the flashlight
It is one of a danger signal light, a green light and a blue signal light or its combination.
9. the retina chip that light source as claimed in claim 1 drives, it is characterised in that the bias light
It is an infrared background light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427824.1A CN106691677A (en) | 2015-07-21 | 2015-07-21 | Retina chip driven by light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510427824.1A CN106691677A (en) | 2015-07-21 | 2015-07-21 | Retina chip driven by light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106691677A true CN106691677A (en) | 2017-05-24 |
Family
ID=58899703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510427824.1A Pending CN106691677A (en) | 2015-07-21 | 2015-07-21 | Retina chip driven by light source |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101006953A (en) * | 2007-01-18 | 2007-08-01 | 上海交通大学 | Artificial retina neural flexible microelectrode array chips and processing method thereof |
| US20090066389A1 (en) * | 2007-09-12 | 2009-03-12 | National Chiao Tung University | Power Controlling Apparatus Applied to Biochip and Operating Method Thereof |
| US20120221103A1 (en) * | 2011-02-24 | 2012-08-30 | Nano-Retina, Inc. | Retinal prosthesis with efficient processing circuits |
| TWM437713U (en) * | 2012-04-13 | 2012-09-21 | Bo-Gang Lin | Improved artificial electronic retina structure |
| TW201334768A (en) * | 2012-02-16 | 2013-09-01 | Univ Nat Chiao Tung | Artificial retinal prosthesis system and retinal chip |
| CN203693837U (en) * | 2013-12-26 | 2014-07-09 | 中国人民解放军第二军医大学 | Self-energized electronic retina |
| CN105227879A (en) * | 2014-06-09 | 2016-01-06 | 财团法人交大思源基金会 | artificial retina system |
-
2015
- 2015-07-21 CN CN201510427824.1A patent/CN106691677A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101006953A (en) * | 2007-01-18 | 2007-08-01 | 上海交通大学 | Artificial retina neural flexible microelectrode array chips and processing method thereof |
| US20090066389A1 (en) * | 2007-09-12 | 2009-03-12 | National Chiao Tung University | Power Controlling Apparatus Applied to Biochip and Operating Method Thereof |
| US20120221103A1 (en) * | 2011-02-24 | 2012-08-30 | Nano-Retina, Inc. | Retinal prosthesis with efficient processing circuits |
| TW201334768A (en) * | 2012-02-16 | 2013-09-01 | Univ Nat Chiao Tung | Artificial retinal prosthesis system and retinal chip |
| TWM437713U (en) * | 2012-04-13 | 2012-09-21 | Bo-Gang Lin | Improved artificial electronic retina structure |
| CN203693837U (en) * | 2013-12-26 | 2014-07-09 | 中国人民解放军第二军医大学 | Self-energized electronic retina |
| CN105227879A (en) * | 2014-06-09 | 2016-01-06 | 财团法人交大思源基金会 | artificial retina system |
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Application publication date: 20170524 |