KR200271879Y1 - Dual-Functional Focusing Structure - Google Patents

Abstract

The dual function includes a main body having an optical filter lens with a focus structure fixed therein, and two spherical focus lenses made of optical material are fixed on the transverse frames, resulting in a dual function focusing module and a dual After the function is received and the light emitting module is connected, the light source emitted from the laser diode element is focused on the focus lens, and the filter lens is connected to the inside of the optical fiber through reflection. The light source is completely reflected by the filter lenses to the light sensing element in order to reduce manufacturing costs, facilitate assembly, and provide more precise and effective light connection.

Description

Dual-Functional Focusing Structure

The present invention relates to a dual function focusing structure configured inside a dual function light receiving and light emitting module, and more specifically to a light receiving and light emitting element such that a received or emitted light source is more easily connected into the optical fiber and the light sensing element. It is related to a structure which is not limited and controlled by the present invention and can change the focal position of the focus lens.

In general, laser diodes have been used as light source elements in available fiber optic communication systems. After being sealed and assembled, the laser diode forms the laser diode element 1a, the light sensing device forms the light sensing element 2a, and referring to FIGS. 1 and 2, the light emitting module 1 and the light receiving The laser diode element 1a and the light sensing element 2a are arranged in the metal fixing base 3 to form the module 2, and the light emitting module 5 is configured to constitute a dual function light receiving and light emitting module 5. 1 and the light receiving module 2 are fixed to the main body 4, so that the light source emitted from the laser diode element 1a can be reflected by the optical lenses 6 and connected into the optical fiber 9a. Optical lenses 6 composed of upper and lower surfaces steam-plated by media having different transmittances are arranged inside the main body 4, and a light source is provided to the optical lenses 6. Thereby completely reflecting to the light sensing element 2a.

The optical lenses 6 are fixed to the foot base 8 of the support member 7, and after the connection configuration is completed, the support member 7 is inserted into the main body 4, and the light source The optical lenses 6 are adjusted in the best angular direction so as to contact these optical lenses 6 and form a reflective action. That is, after being inserted into the fixed base 3, the support member 7 should be adjusted to the best position of the optical lenses 6, but causes inconvenience in practical application.

In addition, the spherical lens 9 is directly fixed on the laser diode element 1a and the light sensing element 2a, and as a result, the laser diode in order to significantly change the light focal forming position on the optical fiber 9a and the light sensing element 2a. The movement of the element 1a synchronizes and moves the focus lens 9, but causes unstable connection and quality damage.

In view of the above, in order to improve the problems of the prior art, the main object of the present invention is to provide a dual-function focusing structure, the optical fiber lens is fixed inside the main body, the focus lens and the main body unit Since molded in units, the dual function light-receiving and light-emitting module is connected, and caused by the movement of the laser diode element during the light connection operation, in order to improve the precision and ease of the operation of connecting the light beam to the optical fiber and the light sensing element. The change in the focus position which is made can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS In order to further understand the structural features and technical details of the present invention, a brief description of the following figures is added to the detailed description of the preferred embodiment.

1 and 2 are cross-sectional views of a dual function light receiving and light emitting module according to the prior art.

Figure 3 is a schematic diagram of a dual-function focusing structure arranged in a dual-function light receiving and light emitting module according to the present invention.

4 is an exploded view of FIG. 3;

5 is an exploded view of a bifunctional focusing structure according to the present invention;

6 is a sectional view along line 6-6 of FIG.

7 is a cross-sectional view of a dual function focusing structure arranged on a dual function light receiving and light emitting module according to the present invention;

8 is a view showing a light path of a dual-function focusing structure according to the present invention.

* Code Description

13 ... Light receiving module 14 ... Light emitting module

18 ... optical fiber 22 ... bottom

23 ... transverse frame 30 ... filter lens

Referring to FIGS. 3 and 4, a dual function light receiving and light emitting module 10 composed of a fiber optic connection element 12, a light receiving module 13, and a main body 11 fixed to the light emitting module 14 is shown. The dual function focal structure 20 according to the invention is mounted, and the optical connecting element 12, the light receiving module 13 and the light emitting module 14 are arranged in close proximity to each other with respect to the angle, and after the laser diode is reflected The optical connecting element 12 is coaxial so that the light source emitted from the element is connected inside the optical fiber 18 and is completely reflected by the optical fiber 18 so that the received light source is connected onto the light sensing element of the light receiving module 13. It is composed of a ceramic material having an optical fiber 18 arranged in the.

Referring to FIG. 7, the inside of the main body is configured as the communication channel 15 configured to the optical connecting element 12, the light receiving module 13, and the light emitting module 14. The upper part of the main body 11 is arranged with an inlet 16 for receiving the dual function focal structure 20 inside the main body 11. The dust cover 17 is fitted and arranged on the inlet 16 to prevent dust inflow.

Referring to the exploded cross-sectional views of FIGS. 5 and 6, an embodiment of a dual-function focusing structure 20 composed of a main body 21 and an optical filter lens 30 is shown. The main body 21 is composed of an optical material, and consists of a lower portion 22 and a plurality of transverse frames 23. Each of the planar terminals configured on the lower part 22 extends outward to form the transverse frame 23. Two spherical focus lenses 24 are arranged on the transverse frames 23 corresponding to the light receiving module 13 and the light emitting module 14. The ends of the proximal positions configured in the respective transverse frames are connected by the connecting portion 25. A fixed base 26 is arranged between the lower part 22 and the two facing parts 25. A cross module 27 is arranged on the fixing base 26 for inserting and connecting the optical filter lenses 30. Media of different transmittances are steam plated on the upper and lower surfaces of the optical filter lens 30 so that the light source emitted from the laser diode element of the light emitting module 14 forms a focal point with respect to the focus lens 24. The light source is then reflected by the filter lenses 30 to be connected into the optical fiber 18. After the received light source is fully reflected by the filter lens 30 to focus on the focus lenses 24, the light source is connected into the light sensing element of the light receiving module 13. When the filter lens 30 is inserted into the recess 27 of the fixing base 26, a binder is applied on the main body 21 to connect the filter lenses 30. The transverse frames 23, the focus lens 24, the connecting portion 25 and the fixed base portion 26 are molded into the base portion 22 in units of units.

In order to deliver the received or emitted light source, a through hole 28 is arranged on the transverse frame 23.

Referring to the cross-sectional view of FIG. 7, an embodiment of a dual function focusing structure 20 is shown in accordance with the present invention and arranged inside the dual function light receiving and light emitting module 10. The dual-function focusing structure according to the present invention is arranged to fit and be inserted into the communication channel 15 of the main body 11, and the cover 17 of the dust inflow prevention function is provided to prevent the inflow of dust. Are arranged above. Referring to the light path of FIG. 8, the light source emitted by the laser diode element of the light emitting module 14 focuses on the focus lenses 24 and then connects the filter lens 30 to the inside of the optical fiber 18. Are reflected by the optical fibers, and the light source received by the optical fiber is fully reflected by the filter lenses 30 to the focus lenses 24. After being focused, it is connected inside the light sensing element of the light receiving module 13.

In summary, the spherical focus lenses 24 according to the present invention are molded with the dual function structure 20 in units of units. Therefore, the focal position changes at all according to the movement of the light receiving module 13 and the light emitting module 14 so that the received or emitted light source is fully focused on the focus lenses to improve the coupling effect among the light source, the optical fiber, and the light sensing element. I never do that.

Claims (3)

The light receiving module and the light emitting module are arranged in a dual function light receiving module which is arranged inside the main body having a light receiving module, a light emitting module and an optical connection member, and at which the received or emitted light source can be transmitted by signals. And an optical connecting element arranged in close proximity to each other, wherein the optical connecting member has optical fibers arranged coaxially therein. The main body has a plurality of transverse frames, the proximal ends of each of the transverse frames being connected by connecting portions, and penetrating the transverse frames so as to match the optical fiber connecting members through which the received or emitted light source can pass. The holes are arranged, To coincide with the light receiving module and the light emitting module, two spherical focus lenses made of optical material are arranged on the transverse frames of the main body, respectively. The fixed base is arranged inside the main body and is located between two opposing connections, The fixed base with the top and bottom surfaces steam-plated with media having different transmittances such that the light source emitted from the light emitting module focuses on the focus lenses and is then connected into the optical fiber through the reflection of the filter lenses. An optical filter lens connected above, and the received light source is completely reflected on the focus lenses by the filter lenses, and further connected into the light-sensitive element after being focused. The focus module according to claim 1, wherein the main body further has a lower part, and each of the lower parts has a flat terminal extending outward to form a transverse frame of the main body. The focusing module of claim 1, wherein the focusing lenses and the fixed base are molded with the main body as a unit.