KR20000046389A - High density lens mounting panel - Google Patents

Abstract

PURPOSE: A lens mounting panel is provided to precisely control position of first connecting lens of first optical fibers when one of second connecting lens of second optical fibers is connected to the first connecting lens of the first optical fibers by means of a rotating optical fiber selector. CONSTITUTION: A lens mounting panel includes a second lens supporting plate(410), a rotating rod(430), and detectors(450,460) for detecting wing portions. The rotating rod(430) rotates to connect a first connecting lens(211) mounted onto a predetermined position of the rotating rod with a corresponding second connecting lens(241). The second lens supporting plate(410) is a circular member having a given radius. The rotating shaft(420) is provided at the center of the supporting plate(410), and a plurality of the second connecting lens are mounted at peripheral positions of the supporting plate(410). The rotating rod(430) is securely mounted on the rotating shaft(420) and rotates with a gap between the rotating rod(430) and a surface of the second lens supporting plate(410). The first connecting lens(211) is mounted in the rotating rod(430). A wing portion(440) projected from opposite sides of the rotating rod(430) is provided on a predetermined position of the rod(430). The wing portion detector(450) functions to detect whether the wing portion(440) approaches to the detector(450) by a predetermined amount and to send a position signal of the rotating rod(430) to a motor controller for precisely adjusting the position of the rotating rod(430).

Description

A high density lense mounting panel

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high density lens mount panel, and in particular, is used in an optical fiber selector that connects one primary optical fiber to one of a plurality of secondary optical fibers. A lens mounting panel having respective connection lenses for secondary optical cores and connecting the connection lens of the primary optical core and the connection lens of the corresponding secondary optical core to each other.

1 is a schematic schematic diagram of an optical communication network in which an optical path monitoring device 140 is used, as an embodiment requiring the optical fiber selection function. At this time, the first optical transmission device 110 and the second optical transmission device 120 that communicate by light are connected to each other through the optical path 130, the optical path 130 is a plurality of optical core wires Is made of.

Many communication developed countries use the optical line monitoring device 140 to remotely operate and monitor the optical line 130, and the optical line monitoring device 140 checks the state of each optical core of the optical line 130. To this end, a predetermined test light signal is incident on the communication light signal sent from the first optical transmission device 110 to the second optical transmission device 120 together, and then transmitted. The test light signal reflected and reflected on the optical core is returned. Analyze and detect errors on the fiber.

In order to inspect the optical path 130 used for the communication, as described above, test light having a wavelength different from that of the communication light should be incident on the optical path 130 together with the communication light. In this case, a device for providing an optical path between the test light and the corresponding optical line by connecting the optical core line from which the test light is emitted to the optical core for measurement object is needed. The core selector 200.

Further, the optical fiber selector 200 not only converts the optical fiber for the test light into the optical fiber in the optical path monitoring device 140 shown in the above embodiment, but also replaces one optical fiber with any one of the plurality of optical fibers. It is a device widely used where the optical path between two optical wires is to be constructed.

FIG. 2 is a schematic view of the rotary optical line selector 200, and transfers a predetermined primary optical line 210 to any one of the plurality of secondary optical lines 230. That is, by connecting one primary optical core 210 to one of the secondary optical cores 230 using the precision stepping motor 220, the primary optical core 210 and the corresponding An optical path is formed between the secondary optical core lines 231.

At this time, the optical fiber core diameter of the optical fiber input / output terminal is about 8-10 μm It only goes along with the total reflection of light along this core. Therefore, in order to switch between the optical cores, the optical signal must be enlarged. The lenses 211 and 241 perform this role. That is, as shown in FIG. 3, the light emitted through the primary optical core line 210 is magnified by the primary connection lens 211 and then incident on the selected secondary connection lens 241 to receive the optical core line 231. To flow.

Meanwhile, in order to operate the rotary optical core selector 200 as described above, a plurality of secondary connection lenses 240 are mounted, and the primary connection lenses 211 of the primary optical cores are predetermined. There is a need for a lens mounting apparatus for precisely connecting the selected secondary connection lens 241.

Accordingly, the present invention is devised to meet the above needs, and is used in the rotary optical line selector 200 to mount a plurality of secondary optical line connecting lenses 240, and the connection lens 211 of the primary optical line It is an object of the present invention to provide a lens mounting panel which is a device for connecting the connection lens 241 of the selected secondary optical core with each other.

In order to achieve the above object, the high-density lens mount panel according to the present invention includes a secondary lens support plate having secondary connection lenses for each of the secondary optical cores in a circular shape having a predetermined radius; It is mounted on a rotation axis located in the center of the secondary lens support plate, and is driven by a motor to rotate on the secondary lens support plate in a clockwise or counterclockwise direction, the length of which is smaller than the radius of the secondary lens support plate Rotating rod; A primary connecting lens of the primary optical core provided in the rotating rod so that the rotating rod can be connected to the secondary connecting lens when the rotating rod is positioned on the secondary connecting lens; A wing portion protruding from the predetermined position of the rotating rod to a predetermined shape on both sides of the rotating rod; And a wing detector which is fixed to the lens support plate and outputs a wing detection signal when the wing portion is close to the lens support plate.

At this time, the wing detector is a deja ⊏ A square member formed in the shape of a square member, and a sensing signal output unit for outputting a radio signal (such as an optical signal or an infrared ray) is provided on an upper surface of the square member, and the sensing signal is received on a lower surface of the square member. And a detection signal receiver configured to output the wing detection signal by blocking the reception of the detection signal by the detection signal receiver when the wing portion is inserted into the open portion of the square member according to the rotation of the rotating rod. It can carry out more preferably.

1 is a schematic diagram of an optical communication network in which a light beam monitoring apparatus is used;

2 is a schematic diagram of a rotary optical line selector,

3 is an optical connection through a connection lens,

4 is a plan view of a lens mounting panel according to the present invention;

5 is a connection diagram of a primary connection lens and a secondary connection lens according to the present invention;

6 is an explanatory view of the wing detector and the wing section;

7 is a configuration diagram of the wing detector.

* Explanation of symbols for main parts of the drawings

200: optical fiber selector 210: primary optical fiber

211: primary connection lens 220: stepping motor

230: optical path 231: secondary optical fiber

240: secondary connection lens 241: secondary connection lens

410: secondary lens support plate 420: rotation axis

430: rotating rod 440: wing portion

450: wing detector 454: detection signal transmitter

455: detection signal receiving unit 456: inspection unit

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

4 is a block diagram (plan view) of the high-density lens mount panel according to the present invention, and includes a secondary lens support plate 410, a rotating rod 430, and wing detectors 450 and 460, while the rotating rod 430 rotates. By connecting the primary connection lens 211 and the secondary connection lens mounted at a predetermined position of the rotating rod, the optical signal is switched.

Here, the secondary lens support plate 410 is a circular member having a radius of a predetermined size, and has a rotation shaft 420 at the center thereof, and a plurality of secondary connection lenses are mounted at the outer edge in a circular shape.

At this time, the rotation shaft 420 is a shaft that rotates in a clockwise or counterclockwise direction by a predetermined precision motor 220, the secondary connection lenses are positioned at a predetermined interval on the secondary lens support plate 410, 2 The side where the rotation rod 430 is located becomes the part which connects with the primary connection lens 211, and is connected with the said optical core line in the opposite part.

The rotating rod 430 is fixedly mounted to the rotating shaft 420, and rotates while being spaced apart from the member surface of the secondary lens support plate 410 by a predetermined height according to the rotation of the rotating shaft 420. The primary connecting lens 211 is mounted on the rotating rod 430. The primary connecting lens 211 is mounted on the primary rod when the rotating rod 430 is positioned directly above a predetermined secondary connecting lens. This is where the light output side of the lens 211 is exactly coincident with the light input side of the secondary connection lens.

In addition, the wing portion 440 is provided at a predetermined position of the rotary rod 430, the wing portion 440 refers to a portion protruding to both sides at a predetermined position of the rotary rod 430. One embodiment of the wing 440 may be configured as a rectangular plate of a predetermined thickness that emerges on both sides of the rotating rod as shown in FIG. The wing 440 is a component used to detect the current position of the rotating rod 430 together with the wing detector 450.

That is, in order to move the rotating rod 430 to the desired position of the secondary connection lens in a predetermined motor control apparatus, which is not shown, it is necessary to initialize the position of the rotating rod 430, which is used for the wing portion 440. And wing detector 450.

At this time, the length of the rotating rod is smaller than the radius of the secondary lens support plate 410. This is for the stable control of the rotating rod 430, because the longer the length of the rotating rod 430, the control accuracy of the rotating rod decreases. In addition, there is an advantage that can be made more compact (cpmpact) is made with a smaller radius than the conventional optical line selector.

FIG. 5 is a view illustrating a mounting state of the primary connection lens 211 mounted on the rotating rod 430 and the secondary connection lens 241 mounted on the secondary lens support plate 410 in detail. This is a connection diagram of the secondary connection lens, viewed from the side.

As such, the secondary connection lens 241 is mounted at an angle perpendicular to the image of the secondary lens support plate 410, and the primary connection lens 211 faces the secondary lens support plate 410 at the rotation rod 430 at a right angle. Is mounted. Therefore, when the rotary rod 430 is correctly positioned on the secondary connection lens 241 to be connected, the primary connection lens 211 and the secondary connection lens 241 mounted on the rotation rod 430 are correctly aligned. Light can be transmitted.

The wing detector 450 detects the wing 440 when the wing 440 approaches the wing detector 450 by a predetermined value, and outputs a predetermined wing detection signal. That is, by providing the position information of the rotating rod 430 to the motor control device (not shown), it is to be able to initialize the position of the rotating rod 430.

FIG. 6 is a diagram illustrating the operation of the wing detector and the wing, and shows an enlarged portion A of FIG. 4 with respect to an embodiment of the deflector wing detector 450.

The wing detector 450 of FIG. 6 may be fixed to the secondary lens support plate 410 by inserting a screw through the fixing units 451 and 452, or may be fixed by fusion splicing or the like. In addition, according to the rotation of the rotary rod 430, the wing 440 is fixed to a position that can be inserted into the wing detector 450 without any force, the wing portion 440 to the open portion in the Di-shaped structure Is inserted. That is, when the wing 440 is inserted into the wing detector 450 in accordance with the rotation of the rotary rod 430, the current position of the wing 440 is detected inside the wing detector 450 by detecting it. It is to output a wing detection signal to inform.

7 is a view illustrating an embodiment of a wing detector, and a detection signal transmitter for outputting a predetermined detection signal (a light signal, an infrared ray, etc.) on an upper side of the inside of the deflector wing detector 450 ( 454 to continue to output a predetermined detection signal. On the other hand, the lower side of the inner side of the wing detector 450, the detection signal receiving unit 455 for receiving a detection signal output from the detection signal transmission unit 454 is located. In addition, the inspection unit 456 monitors whether the detection signal receiver 455 receives the detection signal output from the detection signal transmitter 454, and outputs a predetermined wing detection signal when the detection signal is not received.

Therefore, when the wing 440 is inserted into the wing detector 450 according to the rotation of the rotating rod 430, the detection signal receiver 455 does not receive the detection signal output from the detection signal transmitter 454. The inspection unit 456 outputs a wing detection signal.

This wing detection signal is input to the motor control device (not shown) which is a rotating rod control means, and used for precise control of the position of the rotating rod 430.

In addition, when the rotor rod rotates in the opposite direction after the wing portion 440 is detected, the position of the wing portion 440 may be detected at another position so as to be detected at a predetermined position of the secondary lens support plate 410. By installing one wing detector 460, the wing 440 may be more effectively detected.

As described above, the present invention is used in the rotary optical line selector 200 to precisely connect any one of the plurality of secondary optical line connecting lenses 240 and the connection lens 211 of the primary optical line. The position of the primary connection lens 211 can be more precisely controlled.

In addition, compared to the existing lens support plate can accommodate a large-capacity optical path in a smaller space, it is physically more stable to minimize the cause of failure of the optical line selector has the effect of extending the life.

Claims (2)

It is used in an optical fiber selector, which is a device that selects and connects a primary optical fiber to one of a plurality of secondary optical fibers, thereby connecting the connection lens of the primary optical fiber and the secondary optical fiber. In the device for connecting the connection lens of the secondary optical core of one of the core wires, A secondary lens support plate having secondary connection lenses with respect to each of the secondary optical cores in a circle having a predetermined radius; It is mounted on a rotation axis located in the center of the secondary lens support plate, and is driven by a motor to rotate on the secondary lens support plate in a clockwise or counterclockwise direction, the length of which is smaller than the radius of the secondary lens support plate Rotating rod; A primary connecting lens of the primary optical core provided in the rotating rod so that the rotating rod can be connected to the secondary connecting lens when the rotating rod is positioned on the secondary connecting lens; A wing portion protruding from the rotary rod to have a predetermined shape on both sides of the rotary rod; And And a wing detector which is fixed at a predetermined position of the secondary lens support plate and outputs a wing detection signal when the wing portion is close. According to claim 1, wherein the wing detector is composed of a rectangular member formed in the shape of a depression, the upper side of the inside of the rectangular member is provided with a detection signal transmission unit for outputting a detection signal (light signal or infrared light, etc.), On the lower side inside the member is provided with a detection signal receiving unit for receiving the detection signal, When the wing portion is inserted into the open portion of the rectangular member in accordance with the rotation of the rotating rod, the detection signal received from the detection signal receiving unit is blocked, it is configured to output the wing detection signal, characterized in that the high density lens mount panel .