CN109864700A - Scanning means and eye scanning system - Google Patents
Scanning means and eye scanning system Download PDFInfo
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- CN109864700A CN109864700A CN201910012179.5A CN201910012179A CN109864700A CN 109864700 A CN109864700 A CN 109864700A CN 201910012179 A CN201910012179 A CN 201910012179A CN 109864700 A CN109864700 A CN 109864700A
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Abstract
The present invention relates to the technical field of scanner, a kind of scanning means and eye scanning system are provided, including light source assembly, the first transmission line, the second transmission line, optical detector and vibrator with light out part；The light out part can issue predetermined outgoing beam, and the predetermined outgoing beam can be transmitted to the object under test and generate the reflected beams by first transmission line, and the reflected beams can be transmitted to the optical detector by second transmission line；The vibrator can drive the light out part vibration so that the predetermined outgoing beam is scanned in the presumptive area on the predetermined plane vertical with the predetermined outgoing beam.Predetermined outgoing beam during carrying out two-dimensional scanning can measuring targets carry out two-dimensional scanning, that is, enable optical detector to obtain the image of different zones on object under test；The luminous energy that object under test receives within the unit time is substantially reduced, object under test is avoided to be damaged.
Description
Technical field
The invention belongs to the technical fields of scanner, are to be related to a kind of scanning means and eye scanning system more specifically
System.
Background technique
Existing scanner generally includes light source and optical detector, and light source is radiated on object under test and generates reflected light
Beam, the reflected beams are received and are imaged by optical detector.But in many cases, for example object under test is eyes, in order to see
The details of clear eyes, light source need to illuminate inspection in need region, light source is easy to hurt eye during irradiation
Eyeball.
Summary of the invention
The purpose of the present invention is to provide a kind of scanning means, obtain inspection to solve optical detector existing in the prior art
Light source is needed to need to illuminate all inspection areas when looking into area image and the technical issues of measuring targets impact.
To achieve the above object, the technical solution adopted by the present invention is that: provide a kind of for scanning the scanning of object under test
Device, scanning means include the light source assembly with light out part, the first transmission line, the second transmission line, optical detector,
And vibrator；The light out part can issue predetermined outgoing beam, and first transmission line pre- can be made described
Irradiating light beam is transmitted to the object under test and generates the reflected beams, and second transmission line can pass the reflected beams
Transport to the optical detector；The vibrator light out part can be driven to vibrate so that the predetermined outgoing beam with it is described
It is scanned in presumptive area on the vertical predetermined plane of predetermined outgoing beam.
Further, the vibrator includes piezoelectric ceramics and for driving the piezoelectric ceramics orthogonal at two
The driver vibrated on direction, the light out part are arranged on the piezoelectric ceramics, two direction of vibration of the piezoelectric ceramics
It is vertical with the predetermined outgoing beam respectively.
Further, the light source assembly includes the first illuminating part and the first optical fiber, and first optical fiber has first to go out
End is penetrated, first exit end is the light out part, and the light that first illuminating part issues is carried out by first optical fiber
It conveys and is emitted from first exit end to form the predetermined outgoing beam, the first exit end of first optical fiber is fixed
On the piezoelectric ceramics.
Further, the light source assembly includes the second illuminating part, the second optical fiber and cylindrical mirror；Second optical fiber
With the second exit end, second exit end is the light out part, and the light that second illuminating part issues passes through described the
Two optical fiber carry out conveying and are emitted from second exit end to form the predetermined outgoing beam, the second of second optical fiber
Exit end is fixed on the piezoelectric ceramics；The cylindrical mirror is located on the path of the predetermined outgoing beam, the cylindrical mirror
Extend in a first direction, the second exit end described in the Piezoelectric Ceramic with vibrated in second direction, the predetermined outgoing
It is mutually perpendicular between light beam, the first direction and the second direction.
It further, further include beam splitter, the beam splitter is located on the path of the predetermined outgoing beam, and described first
Transmission line is that the predetermined outgoing beam is penetrated the beam splitter by the light out part and is radiated on the object under test
Propagation path of light, second transmission line be the reflected beams by the object under test to being radiated at the beam splitter
Above and by the beam splitter reflex to the propagation path of light on the optical detector.
Further, the light source assembly includes third illuminating part and third optical fiber；The third optical fiber goes out with third
End is penetrated, the third exit end is the light out part；The third optical fiber is doubly clad optical fiber；The doubly clad optical fiber includes fibre
Core, inner cladding and surrounding layer；The light that the third illuminating part issues convey by the fibre core and from the third
Exit end is emitted to form the predetermined outgoing beam；The third exit end of the third optical fiber is fixed on the piezoelectric ceramics
On；First transmission line is the predetermined outgoing beam by the light out part to the light being radiated on the object under test
Propagation path, second transmission line are by the object under test for the reflected beams to being radiated on the inner cladding
And the propagation path of light on the optical detector is delivered to along the inner cladding.
Further, the light source assembly includes the 4th illuminating part, the 4th optical fiber, the 5th optical fiber, six fibers, Yi Jiguang
Coupler；The six fibers have the 4th exit end, and the 4th exit end is the light out part, the 4th optical fiber and institute
It states the 5th optical fiber and the six fibers is coupled by the photo-coupler；The light that 4th illuminating part issues passes sequentially through
4th optical fiber, photo-coupler and the six fibers simultaneously are emitted to form the predetermined emergent light from the 4th exit end
Beam；First transmission line is the predetermined outgoing beam by the light out part to the light being radiated on the object under test
Propagation path, second transmission line be the reflected beams by the object under test to being radiated on the six fibers
And pass sequentially through the photo-coupler and the 5th optical fiber is delivered to propagation path of light on the optical detector.
Further, collimation unit is provided on the path of the predetermined outgoing beam, the collimation unit can be by institute
Predetermined outgoing beam is stated to be collimated and be radiated on the object under test；And/or scanning means further includes dolly camera component,
The dolly camera component is located on the path of the predetermined outgoing beam in the downstream of the collimation unit, and the Telescopic mirror
Head assembly can adjust the focal position of the predetermined outgoing beam.
Further, the piezoelectric ceramics is rounded, and two first electrodes and two second are arranged on the piezoelectric ceramics
Electrode, two first electrodes are laterally laid in the both ends of the piezoelectric ceramics, and two second electrodes are longitudinally laid in
The middle section of the piezoelectric ceramics is arranged in the both ends of the piezoelectric ceramics, the light out part.
The present invention also provides a kind of eye scanning systems, including the scanning means.
The beneficial effect of scanning means provided by the invention is: compared with prior art, scanning dress provided by the invention
It sets, light out part issues predetermined outgoing beam, and predetermined outgoing beam reaches object under test, object under test by the first transmission line
Predetermined outgoing beam is reflected and is formed the reflected beams, the reflected beams are by the second transmission line and to reach optical detector enterprising
Row imaging；Wherein, vibrator can drive light out part to vibrate so that predetermined outgoing beam is in the presumptive area on predetermined plane
Two-dimensional scanning is carried out, which is the plane vertical with predetermined outgoing beam；Predetermined outgoing beam is carrying out two-dimensional scanning
During can measuring targets carry out two-dimensional scanning, that is, enable optical detector to obtain different zones on object under test
Image；When which regional imaging optical detector need, it is only necessary to which which region predetermined outgoing beam scans, without illuminating
On entire object under test inspection in need region, substantially reduce the luminous energy that object under test receives within the unit time,
Object under test is avoided to be damaged.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the theory structure schematic diagram one of scanning means provided in an embodiment of the present invention；
Fig. 2 is the theory structure schematic diagram two of scanning means provided in an embodiment of the present invention；
Fig. 3 is the theory structure schematic diagram three of scanning means provided in an embodiment of the present invention；
Fig. 4 is the theory structure schematic diagram of third optical fiber provided in an embodiment of the present invention；
Fig. 5 is the theory structure schematic diagram of the 4th optical fiber provided in an embodiment of the present invention, the 5th optical fiber and six fibers.
Wherein, each appended drawing reference in figure:
1- object under test；21- light out part；The predetermined outgoing beam of 22-；23- the reflected beams；24- cylindrical mirror；25- beam splitter；
261- fibre core；262- inner cladding；The 4th optical fiber of 271-；The 5th optical fiber of 272-；273- six fibers；274- photo-coupler；28- is quasi-
Straight unit；29- dolly camera；The first transmission line of 31-；The second transmission line of 32-；4- optical detector；5- vibrator.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Also referring to Fig. 1, now scanning means provided by the invention is illustrated.It provides a kind of to be measured for scanning
The scanning means of object 1, scanning means include the light source assembly (not shown) with light out part 21, the first transmission line 31,
Second transmission line 32, optical detector 4 and vibrator 5；Light out part 21 can issue predetermined outgoing beam 22, the first light
Predetermined outgoing beam 22 can be transmitted to object under test 1 and generate the reflected beams 23 by transmission channel 31, the second transmission line
The reflected beams 23 can be transmitted to optical detector 4 by 32；Vibrator 5 can drive the vibration of light out part 21 so that predetermined outgoing beam
22 are scanned in the presumptive area on the predetermined plane vertical with predetermined outgoing beam 22.
In this way, light out part 21 issues predetermined outgoing beam 22, predetermined outgoing beam 22 is arrived by the first transmission line 31
Up to object under test 1, predetermined outgoing beam 22 is reflected and is formed the reflected beams 23 by object under test 1, and the reflected beams 23 pass through second
Transmission line 32 and reaching is imaged on optical detector 4；Wherein, vibrator 5 can drive light out part 21 to vibrate so that pre-
It makes irradiating light beam 22 and carries out two-dimensional scanning in the presumptive area on predetermined plane, which is and predetermined outgoing beam 22
Vertical plane；Predetermined outgoing beam 22 during carrying out two-dimensional scanning can measuring targets 1 carry out two-dimensional scanning, i.e.,
Optical detector 4 is enabled to obtain the image of different zones on object under test 1；When which regional imaging optical detector 4 need,
Only need which region predetermined outgoing beam 22 scans, without illuminate on entire object under test 1 inspection in need area
Domain substantially reduces the luminous energy that object under test 1 receives within the unit time, object under test 1 is avoided to be damaged.
Optionally, in one embodiment, object under test 1 be eyeball, certainly, object under test 1 can for skin or other
Object.
Optionally, light out part 21 can be light source itself, be also possible to the medium for transmitting and exporting for light, as long as predetermined
Outgoing beam 22 can be emitted from the medium, not limited uniquely herein.
Optionally, in one embodiment, the first transmission line 31 is made of the medium that can convey light；At another
In embodiment, the first transmission line 31 is exactly space itself, as long as first transmission line 31 can be for predetermined emergent light
Beam 22 is propagated, and is not limited uniquely herein.Optionally, in one embodiment, the second transmission line 32 is by can be defeated
The medium of light is sent to form；In another embodiment, the second transmission line 32 is exactly space itself, as long as second optical transport
Channel 32 can be propagated for predetermined outgoing beam 22, not limited uniquely herein.
Optionally, in one embodiment, optical detector 4 is the light intensity sensor that can incude point light source, makes a reservation for outgoing
For light beam 22 during two-dimensional scanning, what optical detector 4 received is the dot matrix of a two-dimensional-matrix-like, the two-dimensional-matrix-like
Dot matrix be capable of forming respective two-dimensional image.Optionally, in another embodiment, optical detector 4 is line-scan digital camera, linear array phase
Machine can obtain the image on a line simultaneously.
Optionally, the reflected beams 23 are focused mirror focusing before reaching optical detector 4, can obtain on such optical detector 4
The stronger hot spot of luminous energy density is obtained, convenient for the imaging of optical detector 4.
Further, referring to Fig. 1, a kind of specific embodiment as scanning means provided by the invention, vibrator 5
Driver including piezoelectric ceramics (not shown) and for driving piezoelectric ceramics to vibrate in two mutually orthogonal directions (does not show
Out), light out part 21 is arranged on piezoelectric ceramics, and two direction of vibration of piezoelectric ceramics are vertical with predetermined outgoing beam 22 respectively.
In this way, driver driving piezoelectric ceramics vibrates in two mutually orthogonal directions, light out part 21 is arranged on piezoelectric ceramics, pressure
The vibration of electroceramics drives the vibration of light out part 21, since two direction of vibration of piezoelectric ceramics are vertical with predetermined emergent ray,
So that light out part 21, in vibration processes, predetermined outgoing beam 22 can carry out in the plane vertical with predetermined outgoing beam 22
Two-dimensional scanning.
Further, referring to Fig. 2, a kind of specific embodiment as scanning means provided by the invention, light source group
Part includes the first illuminating part (not shown) and the first optical fiber (not shown), and the first optical fiber has the first exit end, the first exit end
For light out part 21, the light that the first illuminating part issues carries out conveying by the first optical fiber and is emitted from the first exit end pre- to be formed
Irradiating light beam 22 is made, the first exit end of the first optical fiber is fixed on piezoelectric ceramics.In this way, the light that the first illuminating part issues is logical
The first optical fiber is crossed to be transmitted, the light in the first optical fiber is emitted from the first exit end, the first exit end be light out part 21, first
Exit end is fixed on piezoelectric ceramics, the predetermined outgoing beam that the first exit end may make to come out during piezoelectric ceramic vibration
22 are scanned in two-dimensional surface.
Further, referring to Fig. 3, a kind of specific embodiment as scanning means provided by the invention, light source group
Part includes the second illuminating part (not shown), the second optical fiber (not shown) and cylindrical mirror 24；Second optical fiber has the second outgoing
End, the second exit end are light out part 21, and the light that the second illuminating part issues carries out conveying by the second optical fiber and is emitted from second
It brings out and penetrates to form predetermined outgoing beam 22, the second exit end of the second optical fiber is fixed on piezoelectric ceramics；Cylindrical mirror 24 is located at
On the path of predetermined outgoing beam 22, (not shown) extends cylindrical mirror 24 in a first direction, the second exit end of Piezoelectric Ceramic
With vibrated on second direction (not shown), be mutually perpendicular between predetermined outgoing beam 22, first direction and second direction.Such as
This, since cylindrical mirror 24 extends in a first direction, the predetermined outgoing beam 22 being emitted from the second exit end is radiated at cylindrical mirror 24
When upper, cylindrical mirror 24 can generate linear light source, and the width direction of the linear light source is first direction, since piezoelectric ceramics can drive
Second exit end vibrates in a second direction, and when predetermined outgoing beam 22 moves in a second direction, linear light source also can be second
Side translates up；And due to being mutually perpendicular between first direction and second direction, enable predetermined outgoing beam 22 at one
It is scanned on two-dimensional surface.
Further, Fig. 1 and Fig. 2 are please referred to, as a kind of specific embodiment of scanning means provided by the invention, also
Including beam splitter 25, beam splitter 25 is located on the path of predetermined outgoing beam 22, and the first transmission line 31 is predetermined emergent light
The propagation path of light that beam 22 is penetrated beam splitter 25 by light out part 21 and is radiated on object under test 1, the second transmission line 32 are
The reflected beams 23 are by object under test 1 to being radiated on beam splitter 25 and reflex to the light propagation on optical detector 4 by beam splitter 25
Path.In this way, predetermined outgoing beam 22 is irradiated on beam splitter 25 and penetrates beam splitter 25 and reaches on object under test 1, to
It surveys object 1 to reflect the predetermined outgoing beam 22 and form the reflected beams 23, the reflected beams 23 arrive again on beam splitter 25 and quilt
Beam splitter 25 is reflected on optical detector 4.
Further, Fig. 2 and Fig. 4 are please referred to, as a kind of specific embodiment of scanning means provided by the invention, light
Source component includes third illuminating part (not shown) and third optical fiber (not shown)；Third optical fiber has third exit end, and third goes out
Penetrating end is light out part 21；Third optical fiber is doubly clad optical fiber；Doubly clad optical fiber includes fibre core 261, inner cladding 262 and outsourcing
Layer；The light that third illuminating part issues carries out conveying by fibre core 261 and is emitted from third exit end to form predetermined emergent light
Beam 22；The third exit end of third optical fiber is fixed on piezoelectric ceramics；First transmission line 31 be predetermined outgoing beam 22 by
For light out part 21 to the propagation path of light being radiated on object under test 1, the second transmission line 32 is for the reflected beams 23 by be measured
Object 1 is to being radiated on inner cladding 262 and be delivered to the propagation path of light on optical detector 4 along inner cladding 262.In this way, third
The light that illuminating part issues is by fibre core 261 and is emitted from third exit end and forms predetermined outgoing beam 22, predetermined emergent light
Beam 22 reaches and is reflected to form the reflected beams 23 on object under test 1 and by object under test 1, and the reflected beams 23 are in returning and reaching
It propagates and reaches on optical detector 4 along inner cladding 262 after covering 262.
Further, Fig. 2 and Fig. 5 are please referred to, as a kind of specific embodiment of scanning means provided by the invention, light
Source component includes the 4th illuminating part (not shown), the 4th optical fiber 271, the 5th optical fiber 272, six fibers 273 and photo-coupler
274；Six fibers 273 have the 4th exit end, and the 4th exit end is light out part 21, and the 4th optical fiber 271 and the 5th optical fiber 272 are logical
It crosses photo-coupler 274 and is coupled into six fibers 273；The light that 4th illuminating part issues passes sequentially through the 4th optical fiber 271, optical coupling
Device 274 and six fibers 273 simultaneously are emitted to form predetermined outgoing beam 22 from the 4th exit end；First transmission line 31 is predetermined
For outgoing beam 22 by light out part 21 to the propagation path of light being radiated on object under test 1, the second transmission line 32 is reflected light
Beam 23 is by object under test 1 to being radiated on six fibers 273 and pass sequentially through photo-coupler 274 and the 5th optical fiber 272 is delivered to
Propagation path of light on optical detector 4.In this way, the light that the 4th illuminating part issues successively passes through the 4th optical fiber 271, photo-coupler
It 274 and six fibers 273 and is emitted to form predetermined outgoing beam 22 from the 4th exit end, predetermined outgoing beam 22 reaches quilt
The reflected beams 23 are reflected to form on object under test 1 and by object under test 1, the reflected beams 23 are returning and reaching six fibers 273
Successively pass through the 5th optical fiber 272 of photo-coupler 274 and reaches on optical detector 4.
Further, referring to Fig. 3, a kind of specific embodiment as scanning means provided by the invention, makes in advance
Collimation unit 28 is provided on the path of irradiating light beam 22, predetermined outgoing beam 22 can be collimated and be irradiated by collimation unit 28
On object under test 1.In this way, predetermined outgoing beam 22 is capable of forming more uniform light beam simultaneously after the collimation of collimation unit 28
It is radiated on object under test 1.
Further, referring to Fig. 3, a kind of specific embodiment as scanning means provided by the invention, further includes
29 component of dolly camera, 29 component of dolly camera are located on the path of the predetermined outgoing beam 22 in the downstream of collimation unit 28, and
29 component of dolly camera can adjust the focal position of predetermined outgoing beam 22.In this way, the energy in telescopic process of dolly camera 29
Adjust the focal position of predetermined outgoing beam 22 enough to illuminate position different on object under test 1.
Further, Fig. 1 to Fig. 5 is please referred to, as a kind of specific embodiment of scanning means provided by the invention, pressure
Electroceramics is rounded, and two first electrodes are arranged on piezoelectric ceramics and two second electrodes, two first electrodes are laterally laid in
The both ends of piezoelectric ceramics, two second electrodes are longitudinally laid in the both ends of piezoelectric ceramics, and piezoelectric ceramics is arranged in light out part 21
Middle section.It is vibrated in this way, two first electrodes are able to drive piezoelectric ceramics in transverse direction, two the second electricity are able to drive pressure
Electroceramics is vibrated in longitudinal direction；Piezoelectric ceramics under the driving of two first electrodes and two second electrodes can laterally and
Longitudinal both direction vibration.Wherein, two first electrodes, one is that one, anode is cathode；Similarly, two second electrodes, one
It is a be anode one be cathode.
Fig. 1 to Fig. 5 is please referred to, the present invention also provides a kind of eye scanning systems, including scanning means.Due to using
Above-mentioned scanning means, light out part 21 issue predetermined outgoing beam 22, and predetermined outgoing beam 22 is arrived by the first transmission line 31
Up to object under test 1, predetermined outgoing beam 22 is reflected and is formed the reflected beams 23 by object under test 1, and the reflected beams 23 pass through second
Transmission line 32 and reaching is imaged on optical detector 4；Wherein, vibrator 5 can drive light out part 21 to vibrate so that pre-
It makes irradiating light beam 22 and carries out two-dimensional scanning in the presumptive area on predetermined plane, which is and predetermined outgoing beam 22
Vertical plane；Predetermined outgoing beam 22 during carrying out two-dimensional scanning can measuring targets 1 carry out two-dimensional scanning, i.e.,
Optical detector 4 is enabled to obtain the image of different zones on object under test 1；When which regional imaging optical detector 4 need,
Only need which region predetermined outgoing beam 22 scans, without illuminate on entire object under test 1 inspection in need area
Domain substantially reduces the luminous energy that object under test 1 receives within the unit time, object under test 1 is avoided to be damaged.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. scanning means, for scanning object under test, it is characterised in that: passed including light source assembly, the first light with light out part
Defeated channel, the second transmission line, optical detector and vibrator；The light out part can issue predetermined outgoing beam, described
The predetermined outgoing beam can be transmitted to the object under test and generate the reflected beams by the first transmission line, and described second
The reflected beams can be transmitted to the optical detector by transmission line；The vibrator can drive the light out part to shake
It moves so that the predetermined outgoing beam is swept in the presumptive area on the predetermined plane vertical with the predetermined outgoing beam
It retouches.
2. scanning means as described in claim 1, it is characterised in that: the vibrator includes piezoelectric ceramics and for driving
The driver that piezoelectric ceramics vibrates in two mutually orthogonal directions is stated, the light out part is arranged on the piezoelectric ceramics,
Two direction of vibration of the piezoelectric ceramics are vertical with the predetermined outgoing beam respectively.
3. scanning means as claimed in claim 2, it is characterised in that: the light source assembly includes the first illuminating part and the first light
Fibre, first optical fiber have the first exit end, and first exit end is the light out part, what first illuminating part issued
Light carries out conveying by first optical fiber and is emitted from first exit end to form the predetermined outgoing beam, described
First exit end of the first optical fiber is fixed on the piezoelectric ceramics.
4. scanning means as claimed in claim 2, it is characterised in that: the light source assembly includes the second illuminating part, the second light
Fibre and cylindrical mirror；Second optical fiber have the second exit end, second exit end be the light out part, described second
The light that illuminating part issues carries out conveying by second optical fiber and is emitted from second exit end described predetermined to be formed
Second exit end of outgoing beam, second optical fiber is fixed on the piezoelectric ceramics；The cylindrical mirror is located at described predetermined
On the path of outgoing beam, the cylindrical mirror extends in a first direction, the second exit end described in the Piezoelectric Ceramic with
It vibrates in second direction, is mutually perpendicular between the predetermined outgoing beam, the first direction and the second direction.
5. such as the described in any item scanning means of claim 3 or 4, it is characterised in that: it further include beam splitter, the beam splitter position
In on the path of the predetermined outgoing beam, first transmission line is that the predetermined outgoing beam is saturating by the light out part
The propagation path of light crossing the beam splitter and being radiated on the object under test, second transmission line are the reflected light
Beam is by the object under test to being radiated on the beam splitter and passed by the light that the beam splitter reflexes on the optical detector
Broadcast path.
6. scanning means as claimed in claim 2, it is characterised in that: the light source assembly includes third illuminating part and third light
It is fine；The third optical fiber has third exit end, and the third exit end is the light out part；The third optical fiber is double clad
Optical fiber；The doubly clad optical fiber includes fibre core, inner cladding and surrounding layer；The light that the third illuminating part issues passes through institute
Fibre core is stated to carry out conveying and be emitted from the third exit end to form the predetermined outgoing beam；The third of the third optical fiber
Exit end is fixed on the piezoelectric ceramics；First transmission line be the predetermined outgoing beam by the light out part to
The propagation path of light being radiated on the object under test, second transmission line are for the reflected beams by described to be measured
Object is to being radiated on the inner cladding and be delivered to the propagation path of light on the optical detector along the inner cladding.
7. scanning means as claimed in claim 2, it is characterised in that: the light source assembly includes the 4th illuminating part, the 4th light
Fibre, the 5th optical fiber, six fibers and photo-coupler；The six fibers have the 4th exit end, and the 4th exit end is
The light out part, the 4th optical fiber and the 5th optical fiber are coupled into the six fibers by the photo-coupler；It is described
The light that 4th illuminating part issues passes sequentially through the 4th optical fiber, photo-coupler and the six fibers and goes out from the described 4th
It penetrates to bring out and penetrates to form the predetermined outgoing beam；First transmission line is the predetermined outgoing beam by the light out part
To the propagation path of light being radiated on the object under test, second transmission line is the reflected beams by described to be measured
Object is to being radiated on the six fibers and pass sequentially through the photo-coupler and the 5th optical fiber is delivered to the light and visits
Survey the propagation path of light on device.
8. scanning means as described in claim 1, it is characterised in that: be provided with collimation on the path of the predetermined outgoing beam
The predetermined outgoing beam can be collimated and is radiated on the object under test by unit, the collimation unit；And/or it sweeps
Imaging apparatus further includes dolly camera component, and the dolly camera component is located at the predetermined outgoing in the downstream of the collimation unit
On the path of light beam, and the dolly camera component can adjust the focal position of the predetermined outgoing beam.
9. scanning means as claimed in claim 2, it is characterised in that: the piezoelectric ceramics is rounded, on the piezoelectric ceramics
Two first electrodes and two second electrodes are set, two first electrodes are laterally laid in the both ends of the piezoelectric ceramics,
Two second electrodes are longitudinally laid in the both ends of the piezoelectric ceramics, and the light out part is arranged in the piezoelectric ceramics
Entreat region.
10. eye scanning system, it is characterised in that: including scanning means as described in any one of claim 1 to 9.
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|---|---|---|---|
| CN201910012179.5A CN109864700A (en) | 2019-01-07 | 2019-01-07 | Scanning means and eye scanning system |
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| CN201910012179.5A CN109864700A (en) | 2019-01-07 | 2019-01-07 | Scanning means and eye scanning system |
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