KR20010025532A - Bending method and apparatus of fiber in fiber ornaments - Google Patents

Abstract

PURPOSE: A method and an apparatus for bending optical fiber of an optical fiber decorative structure are provided which minimizes a luminance loss of light emitted from a light emitting end part of the optical fiber. CONSTITUTION: The method for bending optical fiber of an optical fiber decorative structure comprises the processes of simultaneously ejecting air heated to a temperature of 100±3 deg.C to the backside of an object material (1) to which the optical fiber is transplanted and progressing a bending tool (11) of a bending device (10) with spaced apart from the backside of the object material (1) in an appropriate distance so that the optical fiber is bent to a diameter of 2 to 4 mm. The apparatus for bending optical fiber of an optical fiber decorative structure comprises a bending tool (11) which is progressed as maintaining a certain distance (L) from an object material transplanted (1), an installation stand (12) which is equipped with the bending tool (11) at a right place and transferred by a transferring device (13), and an air ejecting device (14) mounted on the installation stand (12) for ejecting air of a certain temperature toward the bending tool (11).

Description

Bending method and apparatus of fiber in fiber ornaments}

The present invention relates to a method and apparatus for bending an optical fiber, and more particularly, to minimize loss of luminance when bending an optical fiber implanted in an implant to closely adhere to a rear surface of the object.

In general, optical fibers are widely used in the fields of electricity, electronics, communication, medical, optics, etc., and the characteristics of the fiber are capable of conducting light from the end of one side to the end of the other side in the longitudinal direction, and their light is high. It is also used as a decorative tool because of its conductive characteristics.

In addition, the object of the decorative device may include clothing, bags, hats, interior goods, accessories, etc., implanting optical fibers in the appropriate arrangement of these implants and the light emitting elements such as LEDs in the rear of the LED By the end of the blinking so that the end can be used for decorative purposes such as accessories.

Figure 1 shows the decorative structure of the optical fiber used for the decorative purposes as described above, the optical fiber (F) as described above is one or more dozens to thousands of strands are implanted in the implant (1) and a plurality of bundles of the rear The light emitting device 6 such as an LED is coupled to each bundle.

In addition, the optical fiber (F) is fixed to the outer surface side of the implanted object (1) by cutting the implanted optical fiber (F) to an appropriate length and applying an adhesive.

In the decorative structure of the optical fiber as described above, light is emitted from the end of the optical fiber by the blinking of the light emitting element 6, where the light emitting end portion 2 of the optical fiber emits light to the outside of the implant object 1 The light receiving end 3 refers to an end receiving light emitted from the light emitting element 6 in close proximity to the light emitting element 6 such as an LED.

Here, the light receiving end 3 side is bent to be in close contact with the inner surface of the implant object 1 as shown in the drawing to be bent (4) is formed and finished with a finish tape (5), the optical fiber ( F) inevitably lowers the luminance due to this bending state.

The bent optical fiber is difficult to predict the degree of loss of brightness because the bending curvature is not defined in a constant manner, and when several operations are performed, the optical fiber is bent to different curvatures and multiple strands of optical fiber are implanted. The light emitting state of the optical fiber decorative structure becomes uneven.

Therefore, the optical fiber decorative structure of the non-uniform light emitting state as described above lowers the reliability of the consumer, thereby exposing the problem that the sales efficiency of the product is lowered.

The present invention has been made to solve the above problems, and an object thereof is to provide a bending method for minimizing the luminance loss of the light emitted from the light emitting end of the optical fiber.

It is another object of the present invention to provide an apparatus for performing the above described method.

1 is a cross-sectional view showing a typical optical fiber decorative structure.

2 is a schematic diagram of an apparatus for performing the optical fiber bending method according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10: bending device 11: bending tool

12: Mounting table 13: transfer mechanism

14: air blowing mechanism

In order to achieve the above object, the present invention has the following features.

The present invention is a method for bending an optical fiber in the interior of the implant by implanting the optical fiber in the implant, on the back side of the implanted object The optical fiber is bent to a diameter of 2mm to 4mm by spraying the air heated to a temperature of at the same time as the bending tool of the bending device to maintain a proper distance from the back of the object.

The present invention is a bending tool which is carried out at a constant interval with the implant to carry out the method described above, the mounting tool having the bending tool in place and moved by a transfer mechanism, and is mounted to the mounting tool to the bending tool side It is characterized by an optical fiber bending device composed of an air ejecting mechanism for injecting air at a constant temperature.

An embodiment of the present invention to which the above-described features are applied will be described in detail with reference to the accompanying drawings.

2 is a schematic diagram showing an apparatus for performing the optical fiber bending method described above.

Referring to FIG. 2, the optical fiber bending device 10 includes a bending tool 11 that proceeds while maintaining a predetermined distance L from the implant object 1, and the bending tool 11 in a fixed position, and includes a conveyor and the like. The mounting table 12 is moved by the transfer mechanism 13 of the, and the air mounting mechanism 14 is mounted to the mounting table 12 to inject air of a predetermined temperature toward the bending tool 11 side.

The bending tool 11 is preferably a roller type with a round outer surface, which is to prevent the possibility that the outer surface is scratched and broken when the optical fiber F is heated by air, and the bending tool 11 is It is provided with the proper distance from the back of the implant.

In order to bend an optical fiber having a diameter of 0.37 mm, air at 98 ° C. was blown to the optical fiber side, and the bending tool was advanced at a distance of 1.5 mm from the rear surface of the object to maintain an optical fiber bent state having a diameter of 3 mm. .

Here, the above-described interval of 1.5 is an approximate radius for obtaining a bending curvature of 3 mm in diameter, and if the interval is set to 1, a bending curvature of 2 mm is obtained.

As a result of the bending as described above, the luminance of the light emitting end portion showing the value of 8.5 before the bending was 8.425 after the bending to achieve a low reduction rate of 0.88%.

Thereafter, the light receiving end 3 is formed on the bent optical fiber decorative structure to produce a product having excellent brightness.

The reason for the low reduction rate as described above will be examined through the following experimental example.

<Experimental example>

First, for the experiment, an appropriate implantation target was selected from 0.25mm diameter and 0.37mm diameter standardized optical fiber (the rubber plate was used in the experiment), and 18 optical fibers were implanted into each implanted object. A plurality of specimens in which the light emitting ends are formed are produced.

Then, the optical fiber of the specimen is bent at various diameters (1 mm to 4 mm) by the apparatus described above on the back side of the light receiving end of the specimen, that is, the back side of the implant.

Then, the luminance of each light emitting end portion was measured, and the experimental values at this time are shown in the following table.

Table 1 shows the experimental results for the optical fiber having a diameter of 0.25 mm.

Table 2 shows experimental values of an optical fiber having a diameter of 0.37 mm.

Here, the T-1 to T-4 is a specimen produced in order to obtain a more accurate result of the experiment, by producing a plurality of such specimens to obtain the experiment and the results over three times.

As shown in Tables 1 and 2, the loss of the luminance was the smallest when the diameter of 2 mm to 4 mm in the optical fiber of 0.25 mm, 0.37 mm diameter most used in the optical fiber decorative structure, Using this as a standard of work, we want to manufacture products with low luminance loss.

In addition, the above limited The reason for the temperature limit of is that the temperature is too low at 97 ° C or less, which delays the bending time of the optical fiber and the bending of the optical fiber is not severe, and the state is not stable even after bending. If the temperature is higher than ℃, thermal deformation of the optical fiber is generated, which causes the internal cracking, and this causes the temperature to be set due to the closed end of the optical fiber to be transplanted and bent.

As described above, the present invention, by providing a method for bending the optical fiber of the light receiving end side, it is possible to manufacture a more excellent product with high luminance emitted to obtain an effect of increasing the sales efficiency according to the improvement of consumer's reliability do.

Claims (2)

In the method for bending the optical fiber inside the implant by implanting the optical fiber in the implant, On the back side of the object 1 to which the optical fiber is implanted The optical fiber is bent to a diameter of 2mm to 4mm by spraying the air heated to a temperature of at the same time and the bending tool 11 of the bending device 10 to maintain a proper distance from the back surface of the object (1). Optical fiber bending method of the optical fiber decorative structure characterized in that. In the apparatus for bending the optical fiber inside the implant when the optical fiber is implanted in the implant, The optical fiber bending device 10 is provided with a bending tool 11 which is maintained while maintaining a predetermined distance (L) from the implant object 1, and the bending tool 11 in a fixed position by the transfer mechanism 13 And a mounting apparatus (12) to be moved and an air blowing mechanism (14) mounted on the mounting table (12) to inject air of a predetermined temperature toward the bending tool (11).