CN209132468U - A kind of fiber coupling camera lens and the fiber coupling device using the fiber coupling camera lens - Google Patents
A kind of fiber coupling camera lens and the fiber coupling device using the fiber coupling camera lens Download PDFInfo
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- CN209132468U CN209132468U CN201822227278.9U CN201822227278U CN209132468U CN 209132468 U CN209132468 U CN 209132468U CN 201822227278 U CN201822227278 U CN 201822227278U CN 209132468 U CN209132468 U CN 209132468U
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- eyeglass
- fiber coupling
- camera lens
- laser
- fiber
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- 238000010168 coupling process Methods 0.000 title claims abstract description 47
- 230000008878 coupling Effects 0.000 title claims abstract description 46
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 46
- 239000000835 fiber Substances 0.000 title claims abstract description 42
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 239000013307 optical fiber Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Abstract
The utility model provides a kind of fiber coupling camera lens, optical coupling efficiency can be improved in it, the utility model additionally provides the fiber coupling device with the fiber coupling camera lens simultaneously, the first eyeglass, the second eyeglass including sequence setting, first eyeglass and second eyeglass are arranged with optical axis, and first eyeglass is plano-convex lens, have positive focal power, the first side of first eyeglass is plane, and the second side of first eyeglass is spherical surface and is convex to second eyeglass；Second eyeglass is plano-convex lens, has positive focal power, the second side of first eyeglass is spherical surface and is convex to first eyeglass, and the second side of second eyeglass is plane.
Description
Technical field
The utility model relates to fiber coupling technique field, specially a kind of fiber coupling camera lens and use the fiber coupling
The fiber coupling device of camera lens.
Background technique
With the rapid development of science and technology, optical fiber increasingly extends in fields such as communication, electronics and electric power, at
For coming novel foundation material.The optical fiber technology of accompanying this is also with novel, the convenient favor for winning people.Optical fiber skill
Art generally consists of three parts: optical signal transmitting terminal, for transmitting the optical fiber of optical signal, optical signal receiving end.
Fiber coupling device is used to focus the output optical coupling of semiconductor laser or optical fiber laser, be passed by optical fiber
It is directed at arbitrary region, stable, efficient coupling is highly important, optical fiber photograph for generating stable, high-power super continuous spectrums
It is bright it is middle by the efficient coupled into optical fibres of light beam be intractable problem；And the prior art is still because it is used or reasons in structure exists
Problem inconvenient, coupling efficiency is low.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of fiber coupling camera lens, optical coupling efficiency can be improved,
The utility model additionally provides the fiber coupling device with the fiber coupling camera lens simultaneously.
Its technical solution is such that a kind of fiber coupling camera lens, it is characterised in that: the first mirror including sequence setting
Piece, the second eyeglass, first eyeglass and second eyeglass are arranged with optical axis,
First eyeglass is plano-convex lens, has positive focal power, and the first side of first eyeglass is plane, institute
The second side for stating the first eyeglass is spherical surface and is convex to second eyeglass；
Second eyeglass is plano-convex lens, has a positive focal power, the second side of first eyeglass be spherical surface and
It is convex to first eyeglass, the second side of second eyeglass is plane；
And meet lower relation of plane:
0.4<(n1-1)(n2-1)f1*f2/(r2*r3)<1.5
-2.6<R2<-1.6
2.1<R3<3.1
Wherein, f1 is the focal length of first eyeglass, and f2 is the focal length of second eyeglass；R2 is the second of the first eyeglass
The radius of curvature of side；R3 is the radius of curvature of the first side of the second eyeglass；N1 is the optical index of the first eyeglass, n2 the
The optical index of two eyeglasses.
Further, the first eyeglass material is glass lens；The second eyeglass material is glass lens.
Further, first eyeglass meets 1.4≤n1≤1.9,30≤vd1≤70, and the n1 is the first eyeglass
Optical index, the vd1 are the Abbe constant of the first eyeglass；
Further, second eyeglass meets 1.4≤n2≤1.9,30≤vd2≤70, and the n2 is the second eyeglass
Optical index, the vd2 are the Abbe constant of the second eyeglass.
A kind of fiber coupling device, including laser emitter, it is characterised in that: laser beam is sent out from the laser emitter
It is transferred in optical fiber after above-mentioned fiber coupling camera lens polymerization after injection.
Further, the laser emitter is the semiconductor laser of wavelength 405nm, is arranged on the laser emitter
There is protecting window.
Further, the numerical aperture NA=0.22 of the optical fiber, the diverging of the focal beam spot of the fiber coupling camera lens
Angle meets following relationship:
Sin(θ2)<NA；
tan(θ2)/tan(θ1)=f1/f2；
Wherein, 2 θ1For the angle of divergence of the laser of laser transmitter projects, 2 θ2For the angle of divergence of focal beam spot.
The first eyeglass, the second eyeglass is arranged in the fiber coupling camera lens of the utility model, by controlling the first eyeglass, the second mirror
The radius of curvature of piece adjusts the angle of divergence of focal beam spot and the size of focal beam spot, and laser beam divergence is inhibited to make it less than 12.5
Degree, effectively raises fiber coupling utilization rate, meets laser transmission requirement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the fiber coupling device of the utility model；
Fig. 2 is the point range figure of the fiber coupling camera lens in embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
See Fig. 1, a kind of fiber coupling camera lens of the utility model, the first eyeglass 1, the second eyeglass 2 including sequence setting,
First eyeglass 1 and the second eyeglass 2 are arranged with optical axis,
First eyeglass 1 is plano-convex lens, has positive focal power, and the first side 11 of the first eyeglass is plane, the first mirror
The second side 12 of piece is spherical surface and is convex to the second eyeglass 2；
Second eyeglass 2 is plano-convex lens, has a positive focal power, and the first side 21 of the second eyeglass is spherical surface and is convex to the
One eyeglass, the second side 22 of the second eyeglass are plane；
And meet lower relation of plane:
0.4<(n1-1)(n2-1)f1*f2/(r2*r3)<1.5
-2.6<R2<-1.6
2.1<R3<3.1
Wherein, f1 is the focal length of the first eyeglass, and f2 is the focal length of the second eyeglass；R2 is the song of the second side of the first eyeglass
Rate radius；R3 is the radius of curvature of the first side of the second eyeglass；N1 is the optical index of the first eyeglass, and n2 is the second eyeglass
Optical index.
In the present embodiment, it is preferred that the first eyeglass material is glass lens；Second eyeglass material is glass lens, can
To improve fire prevention, high temperature resistant, resistance to high humidity and the Anti-scratching ability of the fiber coupling camera lens,
Further, the first eyeglass meets 1.4≤n1≤1.9, and 30≤vd1≤70, n1 are the optical index of the first eyeglass,
Vd1 is the Abbe constant of the first eyeglass；Second eyeglass meets 1.4≤n2≤1.9, and 30≤vd2≤70, n2 are the light of the second eyeglass
Refractive index, vd2 are the Abbe constant of the second eyeglass.
In this embodiment, the first eyeglass 1, the second eyeglass 2 meet following condition as shown:
Wherein, r1 is the radius of curvature of the first eyeglass first side, and r4 is the radius of curvature of the second eyeglass second side, by
In its be all plane, therefore its radius of curvature be infinity.
Optic test is carried out to the fiber coupling camera lens in above-described embodiment, Fig. 2 is the fiber coupling in above-described embodiment
The point range figure of camera lens, it can be seen that the size of the focal beam spot in the present embodiment is small, the coupling effect of fiber coupling camera lens
It is good.
A kind of fiber coupling device of the utility model, including laser emitter 3, laser beam are sent out from laser emitter 3
It is transferred in optical fiber after above-mentioned fiber coupling camera lens polymerization after injection.
Further, laser emitter 3 is the semiconductor laser of wavelength 405nm, is provided with protection on laser emitter
Window 31, protecting window are quartz glass plate, play protective action.
The angle of divergence of the numerical aperture NA=0.22 of optical fiber in the present embodiment, the focal beam spot of fiber coupling camera lens meet
Following relationship:
Sin(θ2)<NA；
tan(θ2)/tan(θ1)=f1/f2；
Wherein, 2 θ1For the angle of divergence of the laser of laser transmitter projects, 2 θ2For the angle of divergence of focal beam spot.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of fiber coupling camera lens, it is characterised in that: the first eyeglass, the second eyeglass including sequence setting, first mirror
Piece and second eyeglass are arranged with optical axis,
First eyeglass is plano-convex lens, has positive focal power, and the first side of first eyeglass is plane, described the
The second side of one eyeglass is spherical surface and is convex to second eyeglass；
Second eyeglass is plano-convex lens, has positive focal power, and the second side of first eyeglass is spherical surface and is convex to
First eyeglass, the second side of second eyeglass are plane；
And meet lower relation of plane:
0.4<(n1-1)(n2-1)f1*f2/(r2*r3)<1.5
-2.6<R2<-1.6
2.1<R3<3.1
Wherein, f1 is the focal length of first eyeglass, and f2 is the focal length of second eyeglass；R2 is the second side of the first eyeglass
Radius of curvature；R3 is the radius of curvature of the first side of the second eyeglass；N1 is the optical index of the first eyeglass, and n2 is the second mirror
The optical index of piece.
2. a kind of fiber coupling camera lens according to claim 1, it is characterised in that: the first eyeglass material is glass mirror
Piece；The second eyeglass material is glass lens.
3. a kind of fiber coupling camera lens according to claim 2, it is characterised in that: first eyeglass meets 1.4≤n1
≤ 1.9,30≤vd1≤70, the n1 is the optical index of the first eyeglass, and the vd1 is the Abbe constant of the first eyeglass.
4. a kind of fiber coupling camera lens according to claim 2, it is characterised in that: second eyeglass meets 1.4≤n2
≤ 1.9,30≤vd2≤70, the n2 is the optical index of the second eyeglass, and the vd2 is the Abbe constant of the second eyeglass.
5. a kind of fiber coupling device, including laser emitter, it is characterised in that: laser beam is from the laser transmitter projects
It is transferred in optical fiber after fiber coupling camera lens described in claim 1 polymerization after out.
6. a kind of fiber coupling device according to claim 5, it is characterised in that: the laser emitter is wavelength
The semiconductor laser of 405nm is provided with protecting window on the laser emitter.
7. a kind of fiber coupling device according to claim 5, it is characterised in that: the numerical aperture NA=of the optical fiber
0.22, the angle of divergence of the focal beam spot of the fiber coupling camera lens meets following relationship:
Sin(θ2)<NA；
tan(θ2)/tan(θ1)=f1/f2；
Wherein, 2 θ1For the angle of divergence of the laser of laser transmitter projects, 2 θ2For the angle of divergence of focal beam spot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822227278.9U CN209132468U (en) | 2018-12-28 | 2018-12-28 | A kind of fiber coupling camera lens and the fiber coupling device using the fiber coupling camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822227278.9U CN209132468U (en) | 2018-12-28 | 2018-12-28 | A kind of fiber coupling camera lens and the fiber coupling device using the fiber coupling camera lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209132468U true CN209132468U (en) | 2019-07-19 |
Family
ID=67249579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822227278.9U Active CN209132468U (en) | 2018-12-28 | 2018-12-28 | A kind of fiber coupling camera lens and the fiber coupling device using the fiber coupling camera lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209132468U (en) |
-
2018
- 2018-12-28 CN CN201822227278.9U patent/CN209132468U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 Room 102, building C5, Ting LAN lane, Suzhou Industrial Park, Jiangsu, China, 192 Patentee after: Yuanzhuo Micro Nano Technology (Suzhou) Co.,Ltd. Address before: 215000 Room 102, building C5, Ting LAN lane, Suzhou Industrial Park, Jiangsu, China, 192 Patentee before: ADVANCED MICRO OPTICS.INC |