CN201945711U - C-Lens assembly element - Google Patents
C-Lens assembly element Download PDFInfo
- Publication number
- CN201945711U CN201945711U CN2011200136215U CN201120013621U CN201945711U CN 201945711 U CN201945711 U CN 201945711U CN 2011200136215 U CN2011200136215 U CN 2011200136215U CN 201120013621 U CN201120013621 U CN 201120013621U CN 201945711 U CN201945711 U CN 201945711U
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- China
- Prior art keywords
- lens
- glass tube
- assembly element
- face
- piece installing
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- Expired - Fee Related
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Abstract
The utility model discloses a C-Lens assembly element, which comprises a C-Lens and a glass tube, wherein the C-Lens is placed in the glass tube, one end of the C-Lens is a curved end surface, in addition, a gap is formed between the top point of the curved end surface and the end surface of one end of the glass tube, the other end of the C-Lens is arranged at the same level as the glass tube, and a window is also formed on the tube wall of the glass tube. The C-Lens assembly element can replace the existing self-focusing lens, the cost of wavelength division multiplex (WDM) devices is reduced, and meanwhile, the problem of insertion damage caused by difficult cleaning of the curved end surface in the existing C-Lens assembly element can also be solved.
Description
Technical field
The utility model relates to a kind of primary element of optical-fibre communications field optical passive component, particularly a kind of C-Lens lens combination piece installing that is used for WDM device reflection end.
Background technology
WDM (wavelength-division multiplex) device is widely used in the various optical fiber telecommunications systems, is very important a kind of optical passive component.The structure of most WDM devices is as shown in Figure 1: 201 is metal tube (welding technology) or glass tube, and 202 is double optical fiber head, and 203 is lens, and 204 is the film filter plate, and 205 is lens, and 206 is the single fiber head.Principle of work is as follows: flashlight (λ 1, and λ 2 ..., λ n) and by incident optical 207, enter the WDM device.Flashlight in 207 reaches interface S2 after 203,204 allow the flashlight of certain wavelength (as λ 2) to pass through, and enter transmission optical fiber 209, and the flashlight of its commplementary wave length is reflected, and enters reflection ray 208.Wherein, film filter plate (204) is taked following two kinds of structures usually with the fixing means of lens (203): 1, GRIN Lens (GRIN lens) type: as shown in Figure 2,301 is double optical fiber head, 302 is GRIN Lens, 303 is the film filter plate, 304 for fixing 301 and 302 glue, and 305 for fixing 302 and 303 glue.The advantage of this structure is a Stability Analysis of Structures, the photoresist coating process maturation; Shortcoming is that cost is higher, mainly is because the manufacture craft of GRIN Lens (302) need be used technology such as ion-exchange, and is very complicated.2, C lens (C-lens) type: as shown in Figure 3,401 is double optical fiber head, 402 is glass tube, 403 is the C lens, 404 is the film filter plate, and 405 for fixing 401 and 402 and 403 glue, and 406 for fixing 402 and 403 glue, 407 for to fix 402 and 404 glue, and 408 is the bent end face of C lens (403).The advantage of this structure is that cost is lower, mainly is that starting material are cheap because the manufacture craft of C lens is simple; Shortcoming is bent end face (408) easy cleaning not of C lens, causes Insertion Loss to increase.
Summary of the invention
In order to solve the problem that prior art exists, the utility model provides the piece installing of a kind of C lens combination, this C lens combination piece installing can be used to substitute present GRIN Lens, reduce the WDM device cost, simultaneously, can also overcome in the existing C-Lens lens combination piece installing, bent end face is the Insertion Loss problem due to the easy cleaning not.
The utility model can be solved by the following technical programs:
The piece installing of a kind of C-Lens lens combination comprises C-Lens lens and glass tube, and the C-Lens lens place in the glass tube, the one end is bent end face, and gapped between summit that should the song end face and the glass tube one end end face, the other end is then concordant with glass tube, also has a window on this glass tube tube wall.
Glass tube can adopt materials such as quartz, borate, and is preferred, adopts borate material.
Owing to adopt above technical scheme, the utility model can solve the problem that prior art exists, and is used for substituting present GRIN Lens, reduce the WDM device cost, simultaneously, also can overcome in the existing C-Lens lens combination piece installing, bent end face is the Insertion Loss problem due to the easy cleaning not.
Description of drawings
Fig. 1 is the structural representation of the general WDM device of prior art;
Fig. 2 is a prior art self-focusing lens type structural representation;
Fig. 3 is a prior art C-Lens lens-type structural representation;
Fig. 4 is the utility model C-Lens lens combination piece installing structural representation:
Fig. 5 is the utility model C-Lens lens combination piece installing type reflection semi-manufacture.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings below:
As shown in Figure 4, a kind of C-Lens lens combination provided by the utility model piece installing, comprise C-Lens lens 101 and glass tube 102, C-Lens lens 101 place in the glass tube 102, wherein, one end of C-Lens lens 101 is bent end face 106, and should song end face 106 and glass tube 102 port ones 07 between an intersegmental crack is arranged, 104 another port with glass tube 102 of the other end of C-Lens lens 101 are concordant, C-Lens lens 101 and glass tube 102 usefulness glue 103 bond together, the glass tube 102 general borate material that adopt also have a window 105 on its tube wall.
Utilize the C-Lens lens combination piece installing reflection semi-manufacture of this C-Lens lens combination a kind of new structure that piece installing forms, as shown in Figure 5.
By this mode at glass tube uplifting window mouth, can be so that C-Lens lens curved surface end be cleaned, the Insertion Loss that reduces to bring thus, simultaneously, utilize the piece installing of this C-Lens lens combination to replace existing GRIN Lens, can reduce the WDM device cost.
The above is the utility model most preferred embodiment only, is not to be used to limit scope of the present utility model, and all equivalences of being done according to the utility model claim change or modify, and are all the utility model and contain.
Claims (2)
1. C-Lens lens combination piece installing, comprise C-Lens lens and glass tube, described C-Lens lens place in the glass tube, the one end is bent end face, and it is gapped between summit that should the song end face and the glass tube one port end face, the other end is then concordant with glass tube, it is characterized in that, has a window on the described glass tube tube wall.
2. C-Lens lens combination as claimed in claim 1 piece installing is characterized in that, described glass tube adopts borate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200136215U CN201945711U (en) | 2011-01-17 | 2011-01-17 | C-Lens assembly element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200136215U CN201945711U (en) | 2011-01-17 | 2011-01-17 | C-Lens assembly element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945711U true CN201945711U (en) | 2011-08-24 |
Family
ID=44473052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200136215U Expired - Fee Related CN201945711U (en) | 2011-01-17 | 2011-01-17 | C-Lens assembly element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352461A (en) * | 2018-12-07 | 2019-02-19 | 上海伟钊光学科技股份有限公司 | A kind of clamping device for micro lens polishing |
-
2011
- 2011-01-17 CN CN2011200136215U patent/CN201945711U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352461A (en) * | 2018-12-07 | 2019-02-19 | 上海伟钊光学科技股份有限公司 | A kind of clamping device for micro lens polishing |
| CN109352461B (en) * | 2018-12-07 | 2023-12-01 | 上海伟钊光学科技股份有限公司 | Clamping device for polishing micro-lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Junying Document name: Notice of termination of patent |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20200117 |