CN205826997U - two-piece type free space isolator - Google Patents
two-piece type free space isolator Download PDFInfo
- Publication number
- CN205826997U CN205826997U CN201620769098.1U CN201620769098U CN205826997U CN 205826997 U CN205826997 U CN 205826997U CN 201620769098 U CN201620769098 U CN 201620769098U CN 205826997 U CN205826997 U CN 205826997U
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- China
- Prior art keywords
- free space
- polaroid
- piece type
- space isolator
- type free
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Abstract
This utility model provides a kind of two-piece type free space isolator, including magnet ring, one polaroid and an optical rotation plate, wherein polaroid and optical rotation plate are, lower plane is horizontal by the quadrangular of 6 ~ 8 ° of angles, they are folded up and down after falling together and can be completely superposed, after polaroid and optical rotation plate are folded up and down and are adhesively fixed, the four of this entirety seamed edges are fixed on inside magnet ring by bonding by the way of inlay card, this utility model is relative to existing three-chip type free space isolator, there is volume little, cutting packaging technology is simple, isolation is high, low cost and other advantages.
Description
Technical field
This utility model relates to a kind of two-piece type free space isolator, belongs to the optical device of optical-fibre communications field.
Background technology
Being mainly used for of free space isolator prevents the reverse transfers light produced due to a variety of causes in light path to light
Source and light path system produce harmful effect, and at present, the chip of existing free space isolator is mainly glued by polarization three-layer tablet
Glue forms, but, there is many shortcomings in the free space isolator of this structure, as volume is bigger than normal, less stable, isolation are relatively
Low, high expensive.
Utility model content
This utility model is for overcoming the deficiencies in the prior art, it is provided that a kind of two-piece type free space isolator, it is relative
Existing three-chip type free space isolator, have volume little, cutting packaging technology is simple, isolation is high, low cost and other advantages.
To achieve these goals, the technical solution of the utility model is:
A kind of two-piece type free space isolator, including magnet ring, a polaroid and an optical rotation plate, wherein polaroid with
Optical rotation plate is the upper and lower plane quadrangular horizontal by 6 ~ 8 ° of angles, and they are folded up and down can be the heaviest after falling together
Close, after polaroid and optical rotation plate are folded up and down and be adhesively fixed, by the four of this entirety seamed edges by the bonding and side of inlay card
Formula is fixed on inside magnet ring.
As the improvement of said structure, polaroid is 0 ° to the deflection angle of light, and the deflection angle of light is by optical rotation plate
45°。
As the improvement of said structure, the outside diameter of magnet ring is 1.47 ~ 1.5mm, axis direction a length of 0.95 ~
1.05mm。
As the improvement of said structure, light hole diameter >=0.6mm, a diameter of polaroid of light hole or optical rotation plate surface
The diameter of tetragon inscribed circle.
Compared with prior art, the beneficial effects of the utility model are:
(1) volume is little: under same performance indicator conditions, reduces than existing three-chip type free space isolator thickness
0.22 ~ 0.25mm, light path debugging focal length effectively shortens 0.2mm.
(2) cutting, packaging technology simplify: owing to decreasing one layer of viscose glue operation, and cutting yield rate improves 1.5 ~ 3%, cutter
Sheet is lost reduction by 5% under same size.
(3) stable performance: under the conditions of the clear aperature of same size, inserts than existing three-chip type free space isolator
Damaging reduction by 0.05 ~ 0.1dB, isolation promotes 3 ~ 5dB.
(4) low cost: under same performance indicator conditions, than existing three-chip type free space isolator reduce by 24% with
On.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the sectional view of this utility model front view.
Fig. 2 is top view of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, any modification, equivalent substitution and improvement etc. made, should be included in of the present utility model
Within protection domain.
As shown in Figure 1, 2, a kind of two-piece type free space isolator that this utility model provides, inclined including magnet ring 1,
Shake sheet 3 and an optical rotation plate 2, and wherein polaroid 3 is 0 ° to the deflection angle of light, and optical rotation plate 2 is 45 ° to the deflection angle of light,
Polaroid 3 is the upper and lower plane quadrangular horizontal by 6 ~ 8 ° of angles, when they fold up and down with the shape of optical rotation plate 2
Can be completely superposed time together；Polaroid is tetragon with the top and bottom of optical rotation plate, and its inscribed circle 4 i.e. light hole of diameter is straight
Footpath >=0.6mm；Magnet ring 1 is circulus, and its outside diameter is 1.47 ~ 1.5mm, its axis direction a length of 0.95 ~
1.05mm。
During assembling, polaroid 3 and optical rotation plate about 2 are folded blend compounds water and be adhesively fixed is an entirety, then by this entirety
Four seamed edges by glue is bonding and card to be embedded in magnet ring 1 internal.
Claims (6)
1. a two-piece type free space isolator, including magnet ring, it is characterised in that: also include a polaroid and an optically-active
Sheet, described polaroid and optical rotation plate are the upper and lower plane quadrangular horizontal by 6 ~ 8 ° of angles, polaroid and optical rotation plate and fold
Falling and be adhesively fixed, polaroid and the four of optical rotation plate seamed edges are fixed on inside magnet ring by the way of bonding and inlay card.
A kind of two-piece type free space isolator the most according to claim 1, it is characterised in that: described polaroid and rotation
Mating plate is folded up and down after falling together and can be completely superposed.
A kind of two-piece type free space isolator the most according to claim 1, it is characterised in that: described polaroid is to light
Deflection angle is 0 °.
A kind of two-piece type free space isolator the most according to claim 2, it is characterised in that: described optical rotation plate is to light
Deflection angle is 45 °.
A kind of two-piece type free space isolator the most according to claim 3, it is characterised in that: the cylindrical of described magnet ring is straight
Footpath is 1.47 ~ 1.5mm, a length of 0.95 ~ 1.05mm of axis direction.
A kind of two-piece type free space isolator the most according to claim 4, it is characterised in that: described a kind of two-piece type
Light hole diameter >=the 0.6mm of free space isolator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769098.1U CN205826997U (en) | 2016-07-21 | 2016-07-21 | two-piece type free space isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769098.1U CN205826997U (en) | 2016-07-21 | 2016-07-21 | two-piece type free space isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205826997U true CN205826997U (en) | 2016-12-21 |
Family
ID=57560146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620769098.1U Active CN205826997U (en) | 2016-07-21 | 2016-07-21 | two-piece type free space isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205826997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023072003A1 (en) * | 2021-10-28 | 2023-05-04 | 华为技术有限公司 | Light-emitting assembly and optical communication apparatus |
-
2016
- 2016-07-21 CN CN201620769098.1U patent/CN205826997U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023072003A1 (en) * | 2021-10-28 | 2023-05-04 | 华为技术有限公司 | Light-emitting assembly and optical communication apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |