CN101554328A - Optical device and corrector method thereof - Google Patents
Optical device and corrector method thereof Download PDFInfo
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- CN101554328A CN101554328A CNA2008100909837A CN200810090983A CN101554328A CN 101554328 A CN101554328 A CN 101554328A CN A2008100909837 A CNA2008100909837 A CN A2008100909837A CN 200810090983 A CN200810090983 A CN 200810090983A CN 101554328 A CN101554328 A CN 101554328A
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Abstract
The invention relates to an optical device and a corrector method thereof. The optical device comprises a light source module, a light sensing module and a correcting module. The light source module can generate correcting light according to a first parameter; the light sensing module receives the correcting light passing by an optical path to generate a second parameter; and the correcting module is coupled with the light source module and the light sensing module, generates a correcting signal according to the first parameter and the second parameter and adjusts the optical device according to the correcting signal, thereby the accuracy of the optical device can be enhanced.
Description
Technical field
The invention relates to a kind of Optical devices, and particularly relevant for a kind of alignment technique of Optical devices.
Background technology
Along with the progress of photoelectric technology, many Optical devices that utilize light to come measurement data also come out successively.Light arteries and veins formula blood oxygen concentration meter (Pulse Oximeter) promptly is a kind of Optical devices of using photoelectric technology, and it can be used to measure the band oxygen ability of haemachrome in the blood (Hemoglobin).
Light arteries and veins formula blood oxygen concentration meter belongs to the Medical Instruments of non-intrusion type, it utilizes double-wavelength light source to send the light of wavelength for 660nm and 940nm respectively, the intensive tissue of irradiation human vas, place such as ear-lobe or finger for example, because band oxygen haemachrome (Oxyhemoglobin) and the difference of deoxy-hemoglobin (Deoxygenated Hemoglobin) on the light absorption frequency spectrum, cause two bundles to penetrate the different wavelength of light intensity, can try to achieve the blood oxygen concentration value according to the theory of computation of blood oxygen concentration.The account form of blood oxygen concentration such as following formula (), wherein (HbO2) representative band oxygen haemachrome concentration (Hb) is represented deoxy-hemoglobin concentration, and SaO2 represents blood oxygen concentration:
SaO
2={ (HbO
2)/[(HbO
2)+(Hb)] } * 100% ... formula (one)
Owing to can being subjected to environmental disturbances in transmittance process, light decays.For instance, along with the position difference that the finger of testee is put, the received signal of blood oxygen concentration meter also can change thereupon.Testee in measuring process is if moveable finger or shake the blood oxygen concentration meter then can produce the signal drift problem.If shaking degree is excessive, even can cause the chaotic waveform (Motion Artifact) of violent change.Can have a strong impact on the accuracy of blood oxygen concentration meter thus, even can cause the doctor to judge patient's the state of an illness by accident.Moreover, the blood oxygen concentration meter also can be subjected to finger thickness, skin color or the vascularity density of testee ... etc. factor and influence its accuracy.
Above-mentioned blood oxygen concentration meter only is the wherein a kind of of multiple Optical devices.What deserves to be mentioned is, be used for the Optical devices measured, for example laser range finder, optical profile type sphygomanometer at present ... Deng, all exist the not good problem of above-mentioned accuracy.Therefore if can overcome the interference of environment, can significantly promote the accuracy of various Optical devices surely to Optical devices.
Summary of the invention
The invention provides a kind of Optical devices, mainly include light source module, output light, this light is via the medium transmission, and Optical devices then are subjected to the influence degree of medium based on light, adjust the employed parameter of assembly of Optical devices.
The invention provides a kind of measuring method,, provide correction light, get rid of the variation that measuring light is produced by medium influence by proofreading and correct light through measuring under the situation of a determinand with measuring light.
More than, can promote the accuracy of optical measurement.
For above-mentioned feature and advantage of the present invention can be become apparent, several embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 is the Organization Chart of a kind of Optical devices (blood oxygen concentration meter) according to the first embodiment of the present invention;
Fig. 2 is the flow chart according to the bearing calibration of a kind of Optical devices of the first embodiment of the present invention;
Fig. 3 is the detailed architecture figure of a kind of Optical devices (blood oxygen concentration meter) according to the first embodiment of the present invention;
Fig. 4 is the Organization Chart of the tunable arrangement of a kind of Optical devices (blood oxygen concentration meter) according to the first embodiment of the present invention;
Fig. 5 is the Organization Chart of the another kind of Optical devices (penetration blood oxygen concentration meter) according to the first embodiment of the present invention;
Fig. 6 is the Organization Chart according to a kind of Optical devices (laser range finder) of the second embodiment of the present invention;
Fig. 7 is the Organization Chart of a kind of Optical devices (optical signal transceiver device) according to the third embodiment of the present invention.
[primary clustering symbol description]
10: light source module
11: calibration light source
12,13: measurement light source
20: optical sensing module
21～23: optical sensor
30: correction module
31: filter unit
32: signal amplification unit
33: analog-digital converter
34: arithmetic element
35: look into forms unit
36: the data base
37: light source driving units
40: determinand
41: object
50: display device
60,61: movable device
70,71: buffer
80: optical fiber
101: proofread and correct light
102,103: measuring light
Cal: correction signal
D, h, d: distance
α: angle
M1, M2: measuring-signal
P1, P2, P3, P4: parameter
S201～S203: each step of the bearing calibration of Optical devices
The specific embodiment
In the prior art, Optical devices are subjected to environmental disturbances easily in measuring process, therefore cause the accuracy of Optical devices not good.In view of this, embodiments of the invention disclose the technology that light is adjusted Optical devices of proofreading and correct of utilizing.In brief, decay owing to light is subjected to environmental disturbances easily in transmittance process, therefore at first Optical devices can produce the correction light with known parameters.Then, proofread and correct light and can use the variation or the decay situation that are produced when the above-mentioned medium of analogue measurement light transmission transmits by the medium transmission.Receive the correction light of the above-mentioned optical path of passing through at last by Optical devices, use the dampening information that obtains proofreading and correct light, and can adjust the employed parameter of assembly of Optical devices according to this.Then can promote the accuracy of Optical devices thus.
First embodiment
In the present embodiment, Optical devices are earlier counted example with blood oxygen concentration and are described.Fig. 1 is the Organization Chart of a kind of Optical devices (blood oxygen concentration meter) according to the first embodiment of the present invention.Fig. 2 is the flow chart according to the bearing calibration of a kind of Optical devices of the first embodiment of the present invention.Please merge with reference to Fig. 1 and Fig. 2, the blood oxygen concentration meter comprises light source module 10, optical sensing module 20 and correction module 30, and wherein correction module 30 couples light source module 10 and optical sensing module 20.At first, can be by step S201, output light, this light can see through the medium transmission.More particularly, light source module 10 can produce according to the first parameter P1 and proofread and correct light 101.On the other hand, optical sensing module 20 can receive the correction light 101 of first optical path of passing through, and uses to produce the second parameter P2.In the present embodiment, determinand 40 is the finger of user, but the present invention is as limit, in other embodiments, and the position of the vascularity comparatively dense of the ear-lobe that determinand 40 also can the person of being to use, prosthese, corrector or the user of finger.In addition, the medium that first optical path is passed through in the present embodiment for example comprises the skin histology of air and finger.
Then can be by step S202, be subjected to the influence of medium based on light, adjust the employed parameter of assembly of Optical devices.More particularly, correction module 30 can produce correction signal cal according to the first parameter P1 and the second parameter P2, and adjusts the employed parameter of assembly of blood oxygen concentration meter according to correction signal cal.Thus, can promote the accuracy of blood oxygen concentration meter.The above-mentioned first parameter P1 can comprise the phase contrast of light intensity, wavelength, frequency, polarization direction, emission angle or two mutually perpendicular electric field components.Similarly, the second parameter P2 also can comprise the phase contrast of light intensity, wavelength, frequency, polarization direction, emission angle or two mutually perpendicular electric field components.Do to introduce further in next each module and correcting mode thereof at blood oxygen concentration.
Fig. 3 is the detailed architecture figure of a kind of Optical devices (blood oxygen concentration meter) according to the first embodiment of the present invention.Please merge with reference to Fig. 1 and Fig. 3, light source module 10 has comprised calibration light source 11 and measurement light source 12,13.Calibration light source 11 is proofreaied and correct light 101 in order to produce, and uses irradiation determinand 40.Measurement light source 12 is adjacent to calibration light source 11, can produce measuring light 102 according to the 3rd parameter P3, uses irradiation determinand 40.Measurement light source 13 is also configurable near calibration light source 11, and can produce measuring light 103 according to the 4th parameter P4, uses irradiation determinand 40.Wherein, the 3rd parameter P3 and the 4th parameter P4 also can comprise the phase contrast of light intensity, wavelength, frequency, polarization direction, emission angle or two mutually perpendicular electric field components.
The blood oxygen concentration meter of present embodiment also is not limited to only use for human in addition, as long as also can use for other animal through suitable adjustment, for example can supply Canis familiaris L., cat, horse, Mus, monkey, bird ... use Deng animal.
In the present embodiment, calibration light source 11 and measurement light source 12,13 are that example describes with the light emitting diode, but the present invention is not as limit, in other embodiments skilled person also the light source of available other type implement calibration light source 11 and measurement light source 12,13, for example can produce and proofread and correct light 101 and measuring light 102,103 with laser generator.The wavelength of proofreading and correct light 101 can be between 300nm～600nm, and in the present embodiment, the wavelength of proofreading and correct light 101 then is that example describes with 405nm.In addition, the wavelength of measuring light 102,103 is that example describes with 660nm, 940nm respectively.But above-mentioned correction light 101 only is a kind of selection embodiment with the wavelength of measuring light 102,103, and the present invention is not also as limit.In other embodiments, proofread and correct light 101 and can comprise visible light and black light with measuring light 102,103, in other words skilled person can proofread and correct the wavelength of light 101 and measuring light 102,103 according to its demand adjustment.
Please continue with reference to Fig. 1 and Fig. 2, optical sensing module 20 has comprised optical sensor 21～23.Optical sensor 21 can receive the correction light 101 of conduct first optical path, uses to produce the second parameter P2.Optical sensor 22 can receive the measuring light 102 of conduct second optical path, uses to produce measuring-signal M1, and wherein second optical path is adjacent to first optical path.Optical sensor 23 can receive the measuring light 103 of conduct the 3rd optical path, uses to produce measuring-signal M2, and wherein the 3rd optical path is adjacent to first optical path.
On the other hand, correction module 30 can comprise filter unit 31, signal amplification unit 32, analog digital converting unit 33, arithmetic element 34, look into forms unit (Lookup Table Unit) 35, data base 36 and light source driving units 37.Arithmetic element 34 couples optical sensing module 20, filter unit 31, signal amplification unit 32, analog digital converting unit 33, looks into forms unit 35, data base 36 and light source driving units 37.Arithmetic element 34 can produce correction signal cal according to the first parameter P1 and the second parameter P2.What deserves to be mentioned is that correction signal cal is not can only be according to the first parameter P1 and the second parameter P2 and produce.For instance, in other embodiments, arithmetic element 34 also can produce correction signal cal according to the first parameter P1, the second parameter P2 and measuring-signal M1, M2.
Hold above-mentionedly, filter unit 31 couples optical sensing module 20, can be according to the noise of correction signal cal filtering measuring-signal M1, M2, and measuring-signal M1, the M2 of filtering noise exported to signal amplification unit 32.In more detail, the wave filter of configurable many groups (not indicating) in the filter unit 31.Filter unit 31 can determine the whole, partly or one of the above-mentioned many group wave filter of whether activation according to correction signal cal, uses and reaches different filter effects.
Signal amplification unit 32 couples filter unit 31, can be according to correction signal cal measurement by magnification signal M1, M2, and output it to analog digital converting unit 33.In more detail, the amplifier of configurable many groups (not indicating) in the signal amplification unit 32.Signal amplification unit 32 can determine the whole, partly or one of the above-mentioned many group amplifiers of whether activation according to correction signal cal, uses and reaches different signal amplification effects.
Analog digital converting unit 33 couples signal amplification unit 32, can measuring-signal M1, M2 be converted to digital signal according to correction signal cal, and outputs it to arithmetic element 34.In more detail, analog digital converting unit 33 can be converted to the transfer characteristic of digital signal according to correction signal cal decision measuring-signal M1, M2.
Hold above-mentionedly, data base 36 can receive user information, and user information for example comprises sex, age, height, body weight, blood pressure or the pulse of user ... Deng.Data base 36 can provide reference data to arithmetic element 34 according to user information.In addition, looking into forms unit 35 can provide corresponding data to arithmetic element 34 according to correction signal cal.In more detail, look into and have many correspondence table in the forms unit 35, look into the one that forms unit 35 can select many correspondence table according to correction signal cal, using provides corresponding data to arithmetic element 34.
Light source driving units 37 couples light source module 10, can adjust the 3rd parameter P3 and the 4th parameter P4 according to correction signal cal.In more detail, light source driving units 37 can change the phase contrast of light intensity, wavelength, frequency, polarization direction, emission angle or the two mutually perpendicular electric field components of measuring light 102,103 according to correction signal cal.
Hold above-mentionedly, arithmetic element 34 can be tried to achieve the blood oxygen concentration data according to corresponding data, reference data and digital signal, and exports to display device 50.Display device 50 couples arithmetic element 34, can use for user and watch in order to show the blood oxygen concentration data.Thus, can significantly promote the accuracy of blood oxygen concentration data.Skilled person should be known in that if blood oxygen concentration is inaccurate can cause the doctor to judge patient's state of an illness by accident, severe patient may threaten patient's life security.The blood oxygen concentration meter that present embodiment proposed just can address the above problem.
In the foregoing description, arithmetic element 34 can be adjusted filter transfer slip unit 31, signal amplification unit 32, analog digital converting unit 33 or light source driving units 37 according to correction signal cal, but the foregoing description only is a kind of selection embodiment in the various embodiments, and the present invention is not as limit.Skilled person can comply with its demand, utilizes correction signal cal to adjust any assembly of Optical devices (blood oxygen concentration meter).For instance, Fig. 4 is the Organization Chart of the tunable arrangement of a kind of Optical devices (blood oxygen concentration meter) according to the first embodiment of the present invention.Please merge with reference to Fig. 3 and Fig. 4, in the present embodiment, correction module 30 also can comprise movable device 60,61 and buffer module, and this buffer module for example can comprise buffer 70,71.Movable device 60 couples arithmetic element 34, in order to carrying calibration light source 11, can move horizontally according to correction signal cal, vertically moves, rotate ... Deng action, use change height h, apart from d or angle [alpha].Because calibration light source 11 is disposed on the movable device 60, thus when movable device 60 actions, the related action of calibration light source 11 meetings, and then can change transmitting site or the emission angle of proofreading and correct light 101 ... Deng.
Hold above-mentionedly, movable device 61 couples arithmetic element 34, in order to carrying optical sensor 21, also can move horizontally according to correction signal cal, vertically moves, rotate ... Deng action.Because optical sensor 21 is disposed on the movable device 61, thus when movable device 61 actions, the related action of optical sensor 21 meetings, and then can change position or the angle that light 101 is proofreaied and correct in optical sensor 21 receptions ... Deng.
In like manner, measurement light source 12,13 and optical sensor 22,23 are also configurable in other movable device of similar above-mentioned movable device 60,61, then do not add to give unnecessary details at this.Skilled person should be known in the difference along with the emission angle or the transmitting site of light, and the conduct path of light also can change thereupon, and the conduct path difference of light, also can relatedly influence the decay of light or be subjected to the situation of environmental disturbances.In like manner, the position that receives light along with optical sensor 21～23 is different with angle, the signal of telecommunication of its generation also can with change.Therefore by controlling above-mentioned action in order to the movable device that carries each light source and optical sensor, but the receiving angle and the receiving position of emission angle, transmitting site and each optical sensor of each light source of optimization blood oxygen concentration meter.Moreover, utilize correction signal cal also can change relative position between each light source and the relative position between each optical sensor.Can significantly promote the accuracy of blood oxygen concentration meter thus.
On the other hand, buffer 70,71 couples arithmetic element 34, can be in order to the both sides of firm carrying determinand 40.In the present embodiment, because blood oxygen concentration is counted reflective blood oxygen concentration meter, so determinand 40 is configurable on the turning point of first optical path.If blood oxygen concentration is counted the blood oxygen concentration meter of penetration, determinand 40 is also configurable on first optical path in other embodiments.
Hold above-mentionedly, buffer 70,71 can also can change distance h or angle [alpha] according to this according to correction signal cal decision thickness or height separately.In more detail, in the present embodiment, buffer 70,71 is for changing the transparent colloid of thickness, for example be filled with liquid or air in the transparent colloid, buffer 70,71 can change the liquid that buffer 70,71 includes or the volume of air according to correction signal cal, and then can change the thickness of buffer 70,71.In the present embodiment, buffer 70,71 is configured in the outer rim side of sensing area, and the benefit of this practice is to reduce the decay of light (proofreading and correct light 101 and measuring light 102,103).But,, can not produce too much influence to the decay of light even if therefore buffer 70,71 has covered whole sensing area because buffer 70,71 is a transparent material yet.Other what deserves to be mentioned is that buffer 70,71 is not limited in transparent colloid, selects among the embodiment at other, and buffer 70,71 also can be opaque material, for example elastomer, rubber or Cotton Gossypii ... Deng.
Skilled person should know that finger (determinand 40) when user is when being pressed in sensing area, if user is pushed too and is exerted oneself, may cause the finger distortion, and then be urged to the blood vessel of finger, may interfere with the accuracy of measuring blood oxygen concentration thus.Therefore present embodiment be provided with buffer 70,71 can be in order to carrying determinand 40, the situation that can slow down perstriction thus takes place, and then promotes the accuracy of blood oxygen concentration meter.If the thickness of buffer 70,71 is the attenuate light energy too greatly significantly, if the too little situation that possibly can't slow down perstriction of the thickness of buffer 70,71.Therefore seeing through correction signal cal can make the blood oxygen concentration meter adjust the optimum thickness of buffer 70,71 voluntarily.Also can promote the accuracy of blood oxygen concentration meter thus.
Referring again to Fig. 3, in the foregoing description, though light source module 10 is that example describes with two measurement light source (12,13) with a calibration light source 11, skilled person also can change the quantity of measurement light source and calibration light source voluntarily according to its demand.For instance, light source module 10 also can comprise the measurement light source more than or three, and light source module 10 also can comprise plural calibration light source in addition.
In addition, in the foregoing description, though optical sensing module 20 is that example describes with three optical sensors (21～23), it is respectively in order to detect the light of different frequency scope.But optical sensing module 20 also can comprise a plurality of optical sensors in other embodiments, uses and detects the more light of multi-wavelength scope, also or a plurality of optical sensors can be integrated into an optical sensor, uses the light that detects different wavelength range simultaneously.
Moreover in the foregoing description, skilled person also can change the framework of blood oxygen concentration meter voluntarily according to its demand.For instance, optical sensor 21～23rd in the foregoing description, and in order to optical signal being transferred to the mimic signal of telecommunication, but in other embodiments, the optical sensor of available digital formula is implemented it, then need not use analog-digital converter 33 thus.In addition, also filter unit 31, signal amplification unit 32 digital optical sensor can be incorporated in the lump, chip area can be saved thus.
Give one example again, in the foregoing description, though filter unit 31 is configured between optical sensor 21,22,23 and the signal amplification unit 32.That is to say that the foregoing description is that first signal with optical sensor 21,22,23 carries out filtering noise, then signal is amplified again.But those who are familiar with the domain knowledge should be known in that in other embodiments signal amplification unit 32 is also configurable between optical sensor 21,22,23 and filter unit 31.That is to say, in other embodiments, can be earlier the signal of optical sensor 21,22,23 be amplified, then again to the target signal filter noise.Above-mentioned two kinds of practices cut both ways, and skilled person can decide the practice of employing in its sole discretion, and the present invention is not limited to this.
In addition, what deserves to be mentioned is, be the light of different wavelength range owing to proofread and correct light 101 with measuring light 102,103, so the blood oxygen concentration meter not only can carry out corrective action through proofreading and correct light 101 before measuring, even can when measuring the blood oxygen concentration data, carry out gauged action in the lump.In other words, proofreading and correct light 101 be the light of different wavelength range with measuring light 102,103, so the blood oxygen concentration meter utilizing correction light 101 to carry out the gauged while, can't be subjected to 102,103 interference of measuring light.
Referring again to Fig. 1, in the foregoing description, though the blood oxygen concentration meter is counted example with reflective blood oxygen concentration, the present invention is not as limit.The also applicable blood oxygen concentration meter in penetration of above-mentioned Optical devices and bearing calibration thereof, for example Fig. 5 is the Organization Chart of the another kind of Optical devices (penetration blood oxygen concentration meter) according to the first embodiment of the present invention.Wherein label assembly same as the previously described embodiments can not repeat them here with reference to the embodiment of the foregoing description.
What deserves to be mentioned is, though Optical devices and bearing calibration thereof have been depicted a possible kenel in the foregoing description, usually know that the knowledgeable should know but have in the affiliated technical field, each manufacturer is all different for the design of Optical devices and bearing calibration thereof, and therefore application of the present invention is when being not restricted to above-mentioned blood oxygen concentration meter.In other words, so long as Optical devices are proofreaied and correct light according to first parameter generating.In addition, and receive the correction light of first optical path of passing through, use producing second parameter.Moreover, according to first parameter and the second parameter generating correction signal, and according to correction signal adjustment Optical devices.Be to have met spiritual place of the present invention just.Below know that the knowledgeable can further understand spirit of the present invention for several embodiment usually so that this area has again, and implement the present invention.
Second embodiment
In the present embodiment, Optical devices are that example describes again with the laser range finder, and Fig. 6 is the Organization Chart according to a kind of Optical devices (laser range finder) of the second embodiment of the present invention.Please refer to Fig. 6, wherein label assembly same as the previously described embodiments can then repeat no more at this with reference to the above embodiments.Laser range finder comprises light source module 10, optical sensing module 20 and correction module 30.Laser range finder can be used to estimate the distance D between laser range finder and the object 41.Its principle is as follows, and laser range finder utilizes light source module 10 to produce measuring light 102, uses irradiating object 41, and measuring light 102 reflection backs are received by optical sensing module 20.Laser range finder can calculate above-mentioned generation measuring light 102 to the time difference that receives measuring light 102, then utilizes above-mentioned time difference to be multiplied by the light velocity again and can obtain distance D.
Skilled person should know that light in different medium, can produce different refractions, therefore can cause the estimation of distance D that a little error is arranged.Therefore, present embodiment utilizes wavelength to be different from the correction light 101 of measuring light 102, uses the calibration of laser diastimeter, can promote the accuracy of laser range finder measuring distance D thus.
The 3rd embodiment
In the present embodiment, Optical devices are that example describes with the optical signal transceiver device again, and Fig. 7 is the Organization Chart of a kind of Optical devices (optical signal transceiver device) according to the third embodiment of the present invention.Please refer to Fig. 7, wherein label assembly same as the previously described embodiments can then repeat no more at this with reference to the above embodiments.The optical signal transceiver device comprises light source module 10, optical sensing module 20 and correction module 30.The optical signal transceiver device can be used to transmit optical signal.In more detail, can dispose light source module 10 at transmitting terminal and use the generation optical signal.In addition, can dispose optical sensing module 20 at receiving terminal, in order to receiving optical signals.In the present embodiment, the optical path that optical signal is passed through can be provided by optical fiber 80, and the benefit of this practice is significantly to reduce the decay of optical signal.
Even if skilled person should know when optical signal transmits in optical fiber 80, optical signal still can be subjected to many external environment factors and disturb, for example optical fiber 80 angle of bend are too big ... etc. factor, and then the optical signal that causes optical sensing module 20 to receive is lost genuine situation.Therefore, present embodiment utilizes wavelength to be different from the correction light 101 of optical signal, uses and proofreaies and correct the optical signal transceiver device, can promote the signal reliability of optical signal transceiver device thus.
In the foregoing description, though Optical devices are that example describes in blood oxygen concentration, laser range finder and optical signal transceiver device, the present invention is not as limit.In other words, skilled person can be according to spirit of the present invention, the alignment technique of Optical devices provided by the present invention is applied to various Optical devices, and not only is confined to three kinds of Optical devices that the foregoing description is carried.
In sum, the bearing calibration of Optical devices of the present invention comprises output light, and this light is via the medium transmission.In addition, be subjected to the influence of medium, adjust the employed parameter of assembly of Optical devices based on light.Therefore can promote the accuracy of Optical devices.
Though the present invention with several embodiment openly as above; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (17)
1. Optical devices is characterized in that, comprising:
One light source module is exported a light, and this light is via a medium transmission, and these Optical devices are subjected to the influence of this medium based on this light, adjusts the employed parameter of assembly of these Optical devices.
2. Optical devices as claimed in claim 1 is characterized in that, this light source module also comprises:
One measurement light source, export a measuring light, wherein this measuring light is passed to a determinand via this medium, wherein, these Optical devices based on this measuring light via variation that this medium produced, adjust the employed parameter of this Optical devices intraware, to proofread and correct the variation that produced by this medium influence of these Optical devices when using this measuring light to measure this determinand.
3. Optical devices as claimed in claim 1 is characterized in that, this light source module also comprises:
One measurement/calibration light source, timesharing is exported a measuring light and and is proofreaied and correct light, this measuring light is passed to a determinand via this medium, wherein, these Optical devices based on this correction light via variation that this medium produced, adjust the employed parameter of Optical devices intraware, to proofread and correct the variation that these Optical devices are produced by this medium influence when using this measuring light to measure this determinand.
4. Optical devices as claimed in claim 1 is characterized in that, this light source module also comprises:
At least one measurement light source is exported a measuring light at least, and this measuring light is passed to a determinand via this medium; And
At least one calibration light source, light is proofreaied and correct in output one, wherein these Optical devices based on this correction light via variation that this medium produced, adjust the employed parameter of Optical devices intraware, to proofread and correct the variation that these Optical devices are produced by this medium influence when using this measuring light to measure this determinand.
5. Optical devices as claimed in claim 4 is characterized in that, also comprise:
One optical sensing module comprises at least one optical sensor, and this measuring light of this photosensor senses and this are proofreaied and correct light, to obtain a measuring-signal and a correction signal respectively.
6. Optical devices as claimed in claim 5 is characterized in that, also comprise:
One correction module is proofreaied and correct this measuring-signal according to this correction signal.
7. Optical devices as claimed in claim 6 is characterized in that, this correction module also comprises:
One filter unit is in order to carry out filtering action back output to this measuring-signal and this correction signal;
One signal amplification unit, the signal that this filter unit is exported amplifies back output;
One analog/digital conversion unit, analog digital is exported after changing the signal of being exported by this signal amplification unit;
One light source driving units is in order to drive this measurement light source and this calibration light source;
One looks into forms unit, and the data of tabling look-up are provided;
One data base, but access one user information; And
One arithmetic element, according to this table look-up data and this user information, the signal of being exported by this analog digital converting unit is carried out computing, adjusting this filter unit, this signal amplification unit, analog/digital conversion unit, and the employed parameter of this light source driving units.
8. Optical devices as claimed in claim 5 is characterized in that, this correction module comprises:
One buffer module is used to carry this determinand, wherein according to this measuring-signal and this correction signal, determines the distance of height, this measurement light source and this optical sensor of this buffer module, and the angle of this measuring light and this correction light ejaculation.
9. Optical devices as claimed in claim 8 is characterized in that this buffer module comprises two buffers, and those buffers are arranged at the both sides that can firmly carry this determinand.
10. Optical devices as claimed in claim 8 is characterized in that this buffer comprises colloid or elastomer.
11. Optical devices as claimed in claim 5 is characterized in that, this light source module is the two measurement light source calibration light sources of arranging in pairs or groups, and this optical sensing module then has three optical sensors.
12. Optical devices as claimed in claim 1 is characterized in that, this light wavelength is between 300nm ~ 600nm.
13. Optical devices as claimed in claim 1 is characterized in that, this medium comprises an air and a skin histology.
14. Optical devices as claimed in claim 1 is characterized in that, this medium comprises an optical fiber.
15. the bearing calibration of Optical devices is characterized in that, comprising:
Export a light, this light is via a medium transmission; And
Be subjected to the influence of this medium based on this light, adjust the employed parameter of assembly of these Optical devices.
16. the bearing calibration of Optical devices as claimed in claim 15 is characterized in that, exports this light, this light also comprises via the step of this medium transmission:
Export a measuring light and and proofread and correct light, this measuring light is passed to a determinand via this medium.
17. the bearing calibration of Optical devices as claimed in claim 16 is characterized in that, is subjected to the influence of this medium based on this light, the step of adjusting the employed parameter of assembly of these Optical devices also comprises:
Via the variation that this medium produced, adjust the employed parameter of Optical devices intraware based on this correction light, to proofread and correct the variation that these Optical devices are produced by this medium influence when using this measuring light to measure this determinand.
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| CNA2008100909837A CN101554328A (en) | 2008-04-08 | 2008-04-08 | Optical device and corrector method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671295A (en) * | 2011-03-15 | 2012-09-19 | 卢才义 | Implanted intelligent blood pressure adjusting device |
| CN103083008A (en) * | 2011-10-28 | 2013-05-08 | 原相科技股份有限公司 | Device with heartbeat measurement function and method for improving heartbeat measurement accuracy rate |
| CN103126686A (en) * | 2011-11-29 | 2013-06-05 | 原相科技股份有限公司 | Optical ranging system and operation method thereof |
| CN104090453A (en) * | 2014-06-24 | 2014-10-08 | 苏州佳世达光电有限公司 | Projector light source drive system and projector |
| US9204843B2 (en) | 2011-11-18 | 2015-12-08 | Pixart Imaging Inc. | Optical distance measurement system and operation method thereof |
| CN105163662A (en) * | 2013-02-13 | 2015-12-16 | 米斯比尔生命科学公司 | Method and device for measuring venous blood oxygenation |
| CN106974623A (en) * | 2017-04-27 | 2017-07-25 | 上海迈鹊医用机器人技术有限公司 | Blood vessel identification lancing system, blood vessel recognition methods |
| CN107688012A (en) * | 2017-07-06 | 2018-02-13 | 浙江工业大学 | A kind of fluorescent signals detection method |
| US10398364B2 (en) | 2013-02-13 | 2019-09-03 | Mespere Lifesciences Inc. | Method and device for measuring venous blood oxygenation |
| CN110769561A (en) * | 2019-12-09 | 2020-02-07 | 江苏盖睿健康科技有限公司 | LED step dimming method of noninvasive pulse oximeter |
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2008
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671295A (en) * | 2011-03-15 | 2012-09-19 | 卢才义 | Implanted intelligent blood pressure adjusting device |
| CN103083008A (en) * | 2011-10-28 | 2013-05-08 | 原相科技股份有限公司 | Device with heartbeat measurement function and method for improving heartbeat measurement accuracy rate |
| US9204843B2 (en) | 2011-11-18 | 2015-12-08 | Pixart Imaging Inc. | Optical distance measurement system and operation method thereof |
| CN103126686A (en) * | 2011-11-29 | 2013-06-05 | 原相科技股份有限公司 | Optical ranging system and operation method thereof |
| CN103126686B (en) * | 2011-11-29 | 2015-02-11 | 原相科技股份有限公司 | Optical ranging system and operation method thereof |
| CN105163662A (en) * | 2013-02-13 | 2015-12-16 | 米斯比尔生命科学公司 | Method and device for measuring venous blood oxygenation |
| US10398364B2 (en) | 2013-02-13 | 2019-09-03 | Mespere Lifesciences Inc. | Method and device for measuring venous blood oxygenation |
| CN104090453A (en) * | 2014-06-24 | 2014-10-08 | 苏州佳世达光电有限公司 | Projector light source drive system and projector |
| CN104090453B (en) * | 2014-06-24 | 2016-05-11 | 苏州佳世达光电有限公司 | A kind of projector light source driving system and projecting apparatus |
| CN106974623A (en) * | 2017-04-27 | 2017-07-25 | 上海迈鹊医用机器人技术有限公司 | Blood vessel identification lancing system, blood vessel recognition methods |
| CN107688012A (en) * | 2017-07-06 | 2018-02-13 | 浙江工业大学 | A kind of fluorescent signals detection method |
| CN110769561A (en) * | 2019-12-09 | 2020-02-07 | 江苏盖睿健康科技有限公司 | LED step dimming method of noninvasive pulse oximeter |
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