CN103901542A

CN103901542A - Optical fiber coupling connector

Info

Publication number: CN103901542A
Application number: CN201210577192.3A
Authority: CN
Inventors: 张俊毅; 刘家豪
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2012-12-27
Filing date: 2012-12-27
Publication date: 2014-07-02

Abstract

An optical fiber coupling connector, used for docking with an optical fiber to transmit optical signals, the optical fiber coupling connector includes a plastic body and a plurality of lenses, the plastic body includes a lower surface, an upper surface opposite to the lower surface, and connects the upper surface and the lower surface The front surface of the front surface, the inclined surface forming an angle with the front surface and the upper surface, the aforementioned plastic body is provided with at least one first groove penetrating through the upper surface, and a plurality of lenses are arranged on the inclined surface of the plastic body, when the optical fiber coupling connector is assembled into Behind the optical fiber, one end of the optical fiber is located in the first groove and filled with optical glue, so that the optical signal from the optical fiber enters the lens of the plastic body through the optical glue, reducing the loss of light transmission.

Description

Optical-fiber coupling connector

[technical field]

The present invention relates to a kind of optical-fiber coupling connector, especially a kind of optical-fiber coupling connector of tool better signal transmission performance.

[background technology]

Chinese patent is announced No. 100356203C and has been disclosed a kind of existing optical-fiber coupling connector, and this optical-fiber coupling connector comprises resin molded body and is arranged on the collimation lens in resin molded body.Resin molded body comprises orthogonal front surface and rear surface, and collimation lens is separately positioned on front surface and rear surface.When use, between optical fiber and collimation lens, there is gap, make the light sending from optical fiber first enter again collimation lens through air.Because the variations in refractive index between optical fiber, air, collimation lens is too large, increase the extent of deterioration of light transmission, be unfavorable for the high-speed transfer of light signal.

Given this, the necessary above-mentioned defect of existing optical-fiber coupling connector being improved to overcome prior art.

[summary of the invention]

The object of the present invention is to provide a kind of optical-fiber coupling connector that makes light signal that optical fiber sends improve signal transmission performance without air.

The object of the invention is to be achieved through the following technical solutions: a kind of optical-fiber coupling connector, be used for fiber alignment with transmitting optical signal, this optical-fiber coupling connector comprises plastic body and multiple lens, plastic body comprises lower surface, the upper surface relative with lower surface, connect the front surface of upper surface and lower surface, inclined-plane with front surface and upper surface formation angle, aforementioned plastic body is provided with at least one the first groove that runs through upper surface, described lens are arranged on inclined-plane, when optical-fiber coupling connector is assembled into after optical fiber, optical fiber one end is arranged in aforementioned the first groove and fills in optical cement at the first groove, make light signal that optical fiber sends enter the lens of plastic body through optical cement.

The present invention further defines, and described upper surface is provided with the second groove to plastic body inner recess, and plastic body comprises the fixed part between the first groove and the second groove, and fixed part is provided with some through holes.

The present invention further defines, and described the second groove connects front surface, and plastic body is provided with the holding parts extending in the second groove, and holding parts is provided with the some depressed parts corresponding with through hole.

The present invention further defines, and the interior through hole that also passes described fixed part of depressed part that described optical fiber is housed in described holding parts is housed in the first groove fiber section.

The present invention further defines, and in described the second groove, is filled with viscose glue.

The present invention further defines, and described optical fiber contacts with plastic body.

The present invention further defines, and described lower surface is provided with the 3rd groove to plastic body inner recess, and described optical-fiber coupling connector also comprises multiple the second lens that extend in the 3rd groove.

The present invention further defines, and described lens are oval.

The present invention further defines, and described front surface is vertical with described lower surface to be arranged, and the angle that described front surface and upper surface form is 45o.

Compared to prior art, the lens of optical-fiber coupling connector of the present invention are arranged on the inclined-plane instead of front surface of plastic body, can be between optical fiber and plastic body injection optics glue, make light signal enter the lens of plastic body through optical cement, reduced the loss of light transmission.

[brief description of the drawings]

Fig. 1 is the stereographic map of optical-fiber coupling connector of the present invention;

Fig. 2 is the stereographic map at another visual angle of optical-fiber coupling connector shown in Fig. 1;

Fig. 3 is the stereographic map after optical-fiber coupling connector of the present invention and optical fiber assembling;

Fig. 4 is the stereographic map after optical-fiber coupling connector of the present invention and optical fiber assembling and after using optical cement to be fixed;

Fig. 5 is the cut-away view of optical-fiber coupling connector shown in Fig. 4 and optical fiber A-A along the line.

[embodiment]

Refer to shown in Fig. 1 to Fig. 3, optical-fiber coupling connector 1 of the present invention is for docking with transmitting optical signal with optical fiber 2, and this optical-fiber coupling connector 1 comprises plastic body 10 and is arranged on the multiple lens 11 and multiple the second lens 12 on plastic body 10.Described lens 11 are oval.

Plastic body 10 comprises the upper surface 101 that is parallel to each other and lower surface 102, connect upper surface 101 and lower surface 102 simultaneously vertical with upper surface 101 and lower surface 102 front surface 103, and front surface 103 and upper surface 101 form the inclined-plane 105 of angle.Described angle is 45o.Described lens 11 are arranged on inclined-plane 105.Described upper surface 101 has the first groove 1011 and the second groove 1010, the second grooves 1010 to connect front surface 103 to plastic body 10 inner recess.Plastic body 10 also comprises the fixed part 1012 between the second groove 1010 and the first groove 1011, and fixed part 1012 is provided with some through holes 1013.Plastic body 10 is provided with the holding parts 104 extending in the second groove 1010, and holding parts 104 is provided with the some depressed parts 1041 corresponding with through hole 1013.Lower surface 102 is provided with to the 3rd groove 1020, the second lens 12 of plastic body 10 inner recess and extends in the 3rd groove 1020.

Refer to shown in Fig. 3, some optical fiber 2 packs into from the front surface 103 of plastic body 10, optical fiber 2 is arranged in the first groove 1011 through through hole 1013 part of the fixed part 1012 of plastic body 10, and optical fiber 2 is housed in the depressed part 1041 of holding parts 104 simultaneously, strengthens the fixation to optical fiber 2.

Refer to shown in Fig. 4 to Fig. 5, after having assembled, in the second groove 1010, be filled with viscose glue 5, in the first groove 1011, be filled with optical cement 3.Optical fiber 2 is fixed to plastic body 10 for viscose glue 5 and optical cement 3 and optical cement 3 can be the Bas Discharged in the first groove 1011, makes the light signal sending from optical fiber 2 directly enter the lens 11 of plastic body 10 without air.Because the refractive index of optical fiber 2 is 1.46, the refractive index of optical cement 3 is 1.59, and the refractive index of lens 11 is 1.64, and that in the present invention, sends light from optical fiber 2 enters the lens 11 of plastic body 10 through optical cement 3, the medium refraction index of light path changes very little, has greatly reduced the loss of light transmission.

In this enforcement, optical fiber 2 contacts with plastic body 10, but optical fiber 2 also can not contact with plastic body 10, makes the light signal that sends from optical fiber 2 enter the lens 11 of plastic body 10 through optical cement 3, reaches the object of the loss that reduces light transmission.

These are only the preferred embodiments of the invention, other any improvement conversion of doing on the present embodiment basis also should not depart from technical scheme of the present invention.

Claims

1. An optical fiber coupling connector, which is used for docking with an optical fiber to transmit optical signals, the optical fiber coupling connector includes a plastic body and a plurality of lenses, the plastic body includes a lower surface, an upper surface opposite to the lower surface, and connects the upper surface and the lower surface. The front surface of the lower surface, the inclined surface forming an angle with the front surface and the upper surface, the aforementioned plastic body is provided with at least one first groove penetrating the upper surface, and it is characterized in that: the lens is arranged on the inclined surface, when the optical fiber is coupled and connected After the device is assembled into the optical fiber, one end of the optical fiber is located in the aforementioned first groove and optical glue is filled in the first groove, so that the optical signal emitted by the optical fiber enters the lens of the plastic body through the optical glue.

2. The optical fiber coupling connector according to claim 1, characterized in that: the upper surface is provided with a second groove recessed to the inside of the plastic body, and the plastic body includes a groove located between the first groove and the second groove. The fixing part is provided with a number of through holes.

3. The optical fiber coupling connector according to claim 2, wherein the second groove runs through the front surface, the plastic body is provided with a holding portion extending into the second groove, and the holding portion is provided with a through hole Corresponding several depressions.

4. The optical fiber coupling connector according to claim 3, wherein the optical fiber is accommodated in the concave portion of the holding portion and passes through the through hole of the fixing portion so that the optical fiber is partially accommodated in the first groove .

5. The optical fiber coupling connector according to claim 4, wherein the second groove is filled with glue.

6. The optical fiber coupling connector as claimed in claim 1, wherein the optical fiber is in contact with the plastic body.

7. The optical fiber coupling connector according to claim 1, characterized in that: the lower surface is provided with a third groove recessed into the plastic body, and the optical fiber coupling connector also includes a third groove extending into the third groove of a number of second lenses.

8. The optical fiber coupling connector according to claim 1, wherein the lens is elliptical.

9 . The optical fiber coupling connector according to claim 1 , wherein the front surface is perpendicular to the bottom surface, and the angle formed by the front surface and the top surface is 45°.