CN2505853Y - Pointing accuracy correction type collimator - Google Patents
Pointing accuracy correction type collimator Download PDFInfo
- Publication number
- CN2505853Y CN2505853Y CN 01263332 CN01263332U CN2505853Y CN 2505853 Y CN2505853 Y CN 2505853Y CN 01263332 CN01263332 CN 01263332 CN 01263332 U CN01263332 U CN 01263332U CN 2505853 Y CN2505853 Y CN 2505853Y
- Authority
- CN
- China
- Prior art keywords
- lens
- pointing accuracy
- optical fiber
- collimator
- correction type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012937 correction Methods 0.000 title claims abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 13
- 239000013307 optical fiber Substances 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000007598 dipping method Methods 0.000 claims 1
- 238000013461 design Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Optical Couplings Of Light Guides (AREA)
- Lenses (AREA)
Abstract
The utility model relates to a directional precision correction type collimator, which consists of a single optical fiber head, a plano-convex lens, a C lens and a correction glass rod. The light emitted by the optical fiber head is converted into collimated light after passing through the plano-convex lens, and then passes through a glass rod with a certain wedge angle at one end, so that the off-axis deflection angle generated after the light passes through the plano-convex lens is corrected, and the collimated light beam with better pointing accuracy is obtained. Compared with the common C-LENS collimator, the novel collimator has the advantages of good pointing accuracy, plane emergent end face and the like, and is widely applied to the fields of light passive and active devices and the like.
Description
Technical field
This is novel to relate generally to and is used for optical passive component, optical active component, optical tests system and plays the C-LENS collimating apparatus that collimated light beam is used.
Technical background
The C-LENS optical fiber collimator is a kind of beam collimation device, and it can be effectively collimates the flashlight of outgoing from optical fiber, so that the insertion of the beam splitting of light, coupling and other device.According to the structure type of collimating apparatus, optical fiber collimator can be divided into uniserial type and array type two big classes, this novel uniserial type that relates generally to.And uniserial type C-LENS optical fiber collimator to have the not high and end face of pointing accuracy be deficiencies such as curved surface, limited it to a certain extent in the application that requires on the more and more stricter modern optical communication device.Fig. 1 is a non-correction type C-LENS optical fiber collimator synoptic diagram in the prior art.
Summary of the invention
This novel purpose is: the uniserial type C-LENS optical fiber collimator of the high pointing accuracy that to design a kind of outgoing end face be the plane.
The structure of this novel pointing accuracy correction type collimating apparatus that provides is such, it is made up of optical fiber head, C-LENS and correction glass bar, wherein glass bar has angle α with optical axis near the end face of C-LENS one end, 0 °≤α≤3 ° wherein, end face away from C-LENS one end is vertical with optical axis, and be coated with anti-reflection film on the glass bar, on C-LENS, also be coated with anti-reflection film.Above structural design is based on the geometrical optics correlation computations and difficulty of processing obtains, thereby promptly has low-angle glass bar to reach the purpose that makes the outgoing beam direction consistent with central axis by increasing by one one end.
Description of drawings
Fig. 1 is the prior art structural drawing.
Fig. 2 is this novel light path principle figure.
Fig. 3 is this new structure figure.
Embodiment
As shown in Figure 3, this novel optical fiber head 1, C-LENS 2, glass bar 3, outer package 4 of comprising.This novel principle is such, after expanding bundle, C-LENS2 becomes collimated light beam from the light of optical fiber head 1 outgoing, but having a minute angle between this collimated light beam and the central axis, is that dielectric interface has an angle to produce owing to the medium refraction index of optical fiber head and C-LENS is different.After this light beam has the glass bar of minute angle through an end face again, can eliminate this angle, making the pointing accuracy index is zero.
This is novel, and to have a pointing accuracy good, and the outgoing end face is advantages such as plane, and field such as passive and active device has widespread use at light.
Glass bar was near the end face of C-LENS one end and the angle α between the optical axis during this was novel, and 0 °≤α≤3 °, on the end face 5 and 8 of glass bar, be coated with anti-reflection film, on two end faces 6 and 7 of C-LENS, also be coated with anti-reflection film, to reduce the loss of light in light path.
Claims (3)
1. a pointing accuracy correction type collimating apparatus comprises optical fiber head and C lens, it is characterized in that: the glass bar that corrective action has been installed at the bright dipping end of C-LENS.
2. a kind of pointing accuracy correction type collimating apparatus according to claim 1, it is characterized in that: glass bar near C-LENS end have one with the angle α of optical axis, 0 °≤α≤3 ° wherein, and vertical away from the light output end of C-LENS end with optical axis, and plate anti-reflection film on the glass bar.
3. a kind of pointing accuracy correction type collimating apparatus according to claim 1 is characterized in that: be coated with anti-reflection film on the C-LENS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263332 CN2505853Y (en) | 2001-10-18 | 2001-10-18 | Pointing accuracy correction type collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263332 CN2505853Y (en) | 2001-10-18 | 2001-10-18 | Pointing accuracy correction type collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2505853Y true CN2505853Y (en) | 2002-08-14 |
Family
ID=33670939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01263332 Expired - Fee Related CN2505853Y (en) | 2001-10-18 | 2001-10-18 | Pointing accuracy correction type collimator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2505853Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016180291A1 (en) * | 2015-05-08 | 2016-11-17 | 南京微创医学科技有限公司 | Endoscopic oct microprobe, oct imaging system, and use method |
| CN107121265A (en) * | 2017-05-10 | 2017-09-01 | 深圳市惠富康光通信有限公司 | The detection device and control method of a kind of C lens assembly technologies |
| CN109212764A (en) * | 2018-11-12 | 2019-01-15 | 珠海市杰威光电科技有限公司 | A kind of high point precision optical fiber component |
-
2001
- 2001-10-18 CN CN 01263332 patent/CN2505853Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016180291A1 (en) * | 2015-05-08 | 2016-11-17 | 南京微创医学科技有限公司 | Endoscopic oct microprobe, oct imaging system, and use method |
| JP2018519973A (en) * | 2015-05-08 | 2018-07-26 | マイクロ−テック（ナンジン） カンパニー，リミテッド | Endoscopic OCT mini-probe, OCT imaging system and method of using the same |
| CN107121265A (en) * | 2017-05-10 | 2017-09-01 | 深圳市惠富康光通信有限公司 | The detection device and control method of a kind of C lens assembly technologies |
| CN109212764A (en) * | 2018-11-12 | 2019-01-15 | 珠海市杰威光电科技有限公司 | A kind of high point precision optical fiber component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |