CN101799565A - Embedded gradient-index lens - Google Patents
Embedded gradient-index lens Download PDFInfo
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- CN101799565A CN101799565A CN200910021070A CN200910021070A CN101799565A CN 101799565 A CN101799565 A CN 101799565A CN 200910021070 A CN200910021070 A CN 200910021070A CN 200910021070 A CN200910021070 A CN 200910021070A CN 101799565 A CN101799565 A CN 101799565A
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- gradient
- index lens
- lens
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- glass tube
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Abstract
The invention relates to an embedded gradient-index lens which is mainly applied in the fields of optical fiber communication and optical sensing. An embedded lens consists of the embedded gradient-index lens and a glass tube sleeved on the gradient-index lens, wherein the gradient-index lens and the glass tube are bonded together through glue; and the diameter of the gradient-index lens is greater than that of a biggest area of light beams transmitted in the gradient-index lens. Under the condition that the use property of the lens is not changed, the manufacturing cost of the embedded lens is lowered.
Description
Technical field
The present invention relates to a kind of embedded gradient-index lens, be mainly used in optical fiber communication and light sensory field.
Background technology
Gradient-index lens uses in fiber optic telecommunications equipment and fiber optic sensing device at present in a large number.The manufacturing of gradient-index lens comprises technological processs such as wire drawing, ion-exchange, end face processing, plated film.Usually, lens are thin more, and it is high more to make efficient, and cost is low more.In actual applications, the thickness of gradient-index lens depends on design and cooperates size of devices.Current, in many application (as optical fiber collimator, wavelength division multiplex device etc.), light beam is only propagated in a very little zone around the gradient-index lens axle center, and according to design in the device and cooperation requirement, the size of gradient-index lens is generally much larger than the required size of light transmission, and at this moment only play a supporting role in most of zone at the edge of lens.This use-pattern has obviously strengthened the manufacturing cost of gradient-index lens.
The present invention proposes a kind of gradient-index lens of mosaic, is characterized in having reduced the manufacturing cost of lens under the situation that does not change the lens operating characteristic.
Technical scheme of the present invention is: the embedded gradient-index lens that is proposed is made up of a gradient-index lens and the glass tube that is enclosed within on the gradient-index lens.Gradient-index lens and said glass tube are connected together by gluing.The diameter of gradient-index lens is greater than the diameter of the maximum region of the light beam of wherein propagating.
Fig. 1 is the structural representation of the embedded gradient-index lens that proposes of the present invention
Embedded gradient-index lens specific embodiments below in conjunction with description of drawings the present invention proposition.Referring to Fig. 1, embedded gradient-index lens is made up of gradient-index lens 1 and glass tube 2, and gradient-index lens 1 is inserted in the glass tube 2, and both receive together with light-sensitive emulsion or heat-sensitive adhesive.The diameter of lens 1 depends on the diameter in the zone of the beam propagation of transmission in it, and the diameter that generally is slightly larger than the zone of beam propagation gets final product.The internal diameter of glass tube 2 and the external diameter of lens are wanted precision-fit, guarantee that gradient-index lens 1 and glass tube 2 have high concentricity.The external diameter of glass tube depends on the requirement of the device that uses these lens.
According to above-mentioned embodiment, the gradient-index lens that we have developed a kind of mosaic is 1.8 gradient-index lens with the external diameters that replace a large amount of uses at present.External diameter is that the technical parameter of 1.8 gradient-index lens is: lens diameter 1.8+0.005/-0.005 millimeter; 0.23 long 4.6 millimeters of pitch; An end face has 8 degree angles, two end face plating anti-reflection films.
When this lens were used for single mode fiber collimator, diameter in the zone of the beam propagation of transmission was approximately 0.6 millimeter in it.The technical parameter that we have developed a kind of gradient-index lens of mosaic is: inner gradient-index lens diameter 0.9+0.005/-0.005 millimeter; 0.23 long 4.6 millimeters of pitch; An end face has 8 degree angles, two end face plating anti-reflection films; The external diameter 1.8+0.005/-0.005 millimeter of the glass tube of outside socket; Internal diameter 0.9+0.015/+0.005; 4 millimeters of length.The glass tube of inner gradient-index lens and outside socket is bonding with heat-sensitive glue.
Use shows that the lens of this mosaic can substitute traditional gradient-index lens.Batch process shows that the cost of the gradient-index lens of this mosaic reduces by 60% approximately.
Claims (3)
1. embedded gradient-index lens is characterized in that it is made up of a gradient-index lens and the glass tube that is enclosed within on the gradient-index lens.
2. embedded gradient-index lens according to claim 1 is characterized in that said gradient-index lens and said glass tube are connected together by gluing.
3. embedded gradient-index lens according to claim 1 is characterized in that the diameter of the diameter of said gradient-index lens greater than the maximum region of the light beam of wherein propagating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910021070A CN101799565A (en) | 2009-02-11 | 2009-02-11 | Embedded gradient-index lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910021070A CN101799565A (en) | 2009-02-11 | 2009-02-11 | Embedded gradient-index lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101799565A true CN101799565A (en) | 2010-08-11 |
Family
ID=42595318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910021070A Pending CN101799565A (en) | 2009-02-11 | 2009-02-11 | Embedded gradient-index lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101799565A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410587A (en) * | 2016-11-30 | 2017-02-15 | 中国科学院国家授时中心 | Mode-locked state detecting device and method for femto second fiber laser |
-
2009
- 2009-02-11 CN CN200910021070A patent/CN101799565A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410587A (en) * | 2016-11-30 | 2017-02-15 | 中国科学院国家授时中心 | Mode-locked state detecting device and method for femto second fiber laser |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100811 |